diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-23 09:52:10 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-23 09:52:10 +0200 |
| commit | 1859a772e2744da8d4ddb987e010541e312adf69 (patch) | |
| tree | 33b27932e8a754221e69477c5ed1cfc47eb1baee /drivers/phy | |
| parent | 4e74eeb27e2873e923fee883df64341dae9ecdbb (diff) | |
| parent | 3d7b0ca5300bd01b176f2b4c10e173db802560d8 (diff) | |
| download | linux-1859a772e2744da8d4ddb987e010541e312adf69.tar.gz | |
Merge tag 'phy-for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy into char-misc-next
Vinod writes: phy for 5.9 - New PHY Drivers: - Samsung UFS - Qcom USB DWC for ipq806x - Xilinx ZynqMP Gigabit Transceiver - Qcom USB QMP for IPQ8074 - BCM63xx USBH - Removed: - Qcom ufs qmp phy driver - Updates: - Support for Qcom SM8250 QMP V4 USB3 UNIPHY - qcom-snps runtime pm support - Cleanup of W=1 warns in the subsystem * tag 'phy-for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy: (46 commits) phy: qualcomm: fix setting of tx_deamp_3_5db when device property read fails phy: bcm63xx-usbh: Add BCM63xx USBH driver dt-bindings: phy: add bcm63xx-usbh bindings phy: armada-38x: fix NETA lockup when repeatedly switching speeds dt: update Marvell Armada 38x COMPHY binding phy: samsung-ufs: Fix IS_ERR argument dt-bindings: phy: renesas,usb3-phy: Add r8a774e1 support dt-bindings: phy: renesas,usb2-phy: Add r8a774e1 support phy: renesas: rcar-gen3-usb2: exit if request_irq() failed phy: renesas: rcar-gen3-usb2: move irq registration to init devicetree: bindings: phy: Document ipq806x dwc3 qcom phy phy: qualcomm: add qcom ipq806x dwc usb phy driver phy: samsung-ufs: add UFS PHY driver for samsung SoC dt-bindings: phy: Document Samsung UFS PHY bindings phy: sun4i-usb: explicitly include gpio/consumer.h phy: stm32: use NULL instead of zero phy: exynos5-usbdrd: use correct format for structure description phy: rockchip-typec: use correct format for structure description phy: xgene: remove unsigned integer comparison with less than zero phy: mapphone-mdm6600: Add missing description for some structure fields ...
Diffstat (limited to 'drivers/phy')
45 files changed, 3372 insertions, 1691 deletions
diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig index b3ed94b98d9b..de9362c25c07 100644 --- a/drivers/phy/Kconfig +++ b/drivers/phy/Kconfig @@ -70,5 +70,6 @@ source "drivers/phy/st/Kconfig" source "drivers/phy/tegra/Kconfig" source "drivers/phy/ti/Kconfig" source "drivers/phy/intel/Kconfig" +source "drivers/phy/xilinx/Kconfig" endmenu diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile index 310c149a9df5..c27408e4daae 100644 --- a/drivers/phy/Makefile +++ b/drivers/phy/Makefile @@ -8,24 +8,25 @@ obj-$(CONFIG_GENERIC_PHY_MIPI_DPHY) += phy-core-mipi-dphy.o obj-$(CONFIG_PHY_LPC18XX_USB_OTG) += phy-lpc18xx-usb-otg.o obj-$(CONFIG_PHY_XGENE) += phy-xgene.o obj-$(CONFIG_PHY_PISTACHIO_USB) += phy-pistachio-usb.o -obj-$(CONFIG_ARCH_SUNXI) += allwinner/ -obj-$(CONFIG_ARCH_MESON) += amlogic/ -obj-$(CONFIG_ARCH_MEDIATEK) += mediatek/ -obj-$(CONFIG_ARCH_RENESAS) += renesas/ -obj-$(CONFIG_ARCH_ROCKCHIP) += rockchip/ -obj-$(CONFIG_ARCH_TEGRA) += tegra/ -obj-y += broadcom/ \ +obj-y += allwinner/ \ + amlogic/ \ + broadcom/ \ cadence/ \ freescale/ \ hisilicon/ \ intel/ \ lantiq/ \ marvell/ \ + mediatek/ \ motorola/ \ mscc/ \ qualcomm/ \ ralink/ \ + renesas/ \ + rockchip/ \ samsung/ \ socionext/ \ st/ \ - ti/ + tegra/ \ + ti/ \ + xilinx/ diff --git a/drivers/phy/allwinner/Kconfig b/drivers/phy/allwinner/Kconfig index e760d89d3976..fb584518b2d0 100644 --- a/drivers/phy/allwinner/Kconfig +++ b/drivers/phy/allwinner/Kconfig @@ -22,7 +22,7 @@ config PHY_SUN4I_USB config PHY_SUN6I_MIPI_DPHY tristate "Allwinner A31 MIPI D-PHY Support" depends on ARCH_SUNXI || COMPILE_TEST - depends on HAS_IOMEM + depends on HAS_IOMEM && COMMON_CLK depends on RESET_CONTROLLER select GENERIC_PHY select GENERIC_PHY_MIPI_DPHY diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c b/drivers/phy/allwinner/phy-sun4i-usb.c index e5842e48a5e0..651d5e2a25ce 100644 --- a/drivers/phy/allwinner/phy-sun4i-usb.c +++ b/drivers/phy/allwinner/phy-sun4i-usb.c @@ -7,7 +7,7 @@ * Based on code from * Allwinner Technology Co., Ltd. <www.allwinnertech.com> * - * Modelled after: Samsung S5P/EXYNOS SoC series MIPI CSIS/DSIM DPHY driver + * Modelled after: Samsung S5P/Exynos SoC series MIPI CSIS/DSIM DPHY driver * Copyright (C) 2013 Samsung Electronics Co., Ltd. * Author: Sylwester Nawrocki <s.nawrocki@samsung.com> */ @@ -16,6 +16,7 @@ #include <linux/delay.h> #include <linux/err.h> #include <linux/extcon-provider.h> +#include <linux/gpio/consumer.h> #include <linux/io.h> #include <linux/interrupt.h> #include <linux/kernel.h> diff --git a/drivers/phy/allwinner/phy-sun6i-mipi-dphy.c b/drivers/phy/allwinner/phy-sun6i-mipi-dphy.c index 79c8af5c7c1d..1fa761ba6cbb 100644 --- a/drivers/phy/allwinner/phy-sun6i-mipi-dphy.c +++ b/drivers/phy/allwinner/phy-sun6i-mipi-dphy.c @@ -233,7 +233,7 @@ static int sun6i_dphy_exit(struct phy *phy) } -static struct phy_ops sun6i_dphy_ops = { +static const struct phy_ops sun6i_dphy_ops = { .configure = sun6i_dphy_configure, .power_on = sun6i_dphy_power_on, .power_off = sun6i_dphy_power_off, @@ -241,7 +241,7 @@ static struct phy_ops sun6i_dphy_ops = { .exit = sun6i_dphy_exit, }; -static struct regmap_config sun6i_dphy_regmap_config = { +static const struct regmap_config sun6i_dphy_regmap_config = { .reg_bits = 32, .val_bits = 32, .reg_stride = 4, diff --git a/drivers/phy/broadcom/Kconfig b/drivers/phy/broadcom/Kconfig index b29f11c19155..a1f1a9c90d0d 100644 --- a/drivers/phy/broadcom/Kconfig +++ b/drivers/phy/broadcom/Kconfig @@ -2,6 +2,14 @@ # # Phy drivers for Broadcom platforms # +config PHY_BCM63XX_USBH + tristate "BCM63xx USBH PHY driver" + depends on BMIPS_GENERIC || COMPILE_TEST + select GENERIC_PHY + help + Enable this to support the BCM63xx USBH PHY driver. + If unsure, say N. + config PHY_CYGNUS_PCIE tristate "Broadcom Cygnus PCIe PHY driver" depends on OF && (ARCH_BCM_CYGNUS || COMPILE_TEST) diff --git a/drivers/phy/broadcom/Makefile b/drivers/phy/broadcom/Makefile index c78de546135c..7024127f86ad 100644 --- a/drivers/phy/broadcom/Makefile +++ b/drivers/phy/broadcom/Makefile @@ -1,4 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 +obj-$(CONFIG_PHY_BCM63XX_USBH) += phy-bcm63xx-usbh.o obj-$(CONFIG_PHY_CYGNUS_PCIE) += phy-bcm-cygnus-pcie.o obj-$(CONFIG_BCM_KONA_USB2_PHY) += phy-bcm-kona-usb2.o obj-$(CONFIG_PHY_BCM_NS_USB2) += phy-bcm-ns-usb2.o diff --git a/drivers/phy/broadcom/phy-bcm63xx-usbh.c b/drivers/phy/broadcom/phy-bcm63xx-usbh.c new file mode 100644 index 000000000000..6c05ba8b08be --- /dev/null +++ b/drivers/phy/broadcom/phy-bcm63xx-usbh.c @@ -0,0 +1,457 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * BCM6328 USBH PHY Controller Driver + * + * Copyright (C) 2020 Álvaro Fernández Rojas <noltari@gmail.com> + * Copyright (C) 2015 Simon Arlott + * + * Derived from bcm963xx_4.12L.06B_consumer/kernel/linux/arch/mips/bcm963xx/setup.c: + * Copyright (C) 2002 Broadcom Corporation + * + * Derived from OpenWrt patches: + * Copyright (C) 2013 Jonas Gorski <jonas.gorski@gmail.com> + * Copyright (C) 2013 Florian Fainelli <f.fainelli@gmail.com> + * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr> + */ + +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/phy/phy.h> +#include <linux/platform_device.h> +#include <linux/reset.h> + +/* USBH control register offsets */ +enum usbh_regs { + USBH_BRT_CONTROL1 = 0, + USBH_BRT_CONTROL2, + USBH_BRT_STATUS1, + USBH_BRT_STATUS2, + USBH_UTMI_CONTROL1, +#define USBH_UC1_DEV_MODE_SEL BIT(0) + USBH_TEST_PORT_CONTROL, + USBH_PLL_CONTROL1, +#define USBH_PLLC_REFCLKSEL_SHIFT 0 +#define USBH_PLLC_REFCLKSEL_MASK (0x3 << USBH_PLLC_REFCLKSEL_SHIFT) +#define USBH_PLLC_CLKSEL_SHIFT 2 +#define USBH_PLLC_CLKSEL_MASK (0x3 << USBH_PLLC_CLKSEL_MASK) +#define USBH_PLLC_XTAL_PWRDWNB BIT(4) +#define USBH_PLLC_PLL_PWRDWNB BIT(5) +#define USBH_PLLC_PLL_CALEN BIT(6) +#define USBH_PLLC_PHYPLL_BYP BIT(7) +#define USBH_PLLC_PLL_RESET BIT(8) +#define USBH_PLLC_PLL_IDDQ_PWRDN BIT(9) +#define USBH_PLLC_PLL_PWRDN_DELAY BIT(10) +#define USBH_6318_PLLC_PLL_SUSPEND_EN BIT(27) +#define USBH_6318_PLLC_PHYPLL_BYP BIT(29) +#define USBH_6318_PLLC_PLL_RESET BIT(30) +#define USBH_6318_PLLC_PLL_IDDQ_PWRDN BIT(31) + USBH_SWAP_CONTROL, +#define USBH_SC_OHCI_DATA_SWAP BIT(0) +#define USBH_SC_OHCI_ENDIAN_SWAP BIT(1) +#define USBH_SC_OHCI_LOGICAL_ADDR_EN BIT(2) +#define USBH_SC_EHCI_DATA_SWAP BIT(3) +#define USBH_SC_EHCI_ENDIAN_SWAP BIT(4) +#define USBH_SC_EHCI_LOGICAL_ADDR_EN BIT(5) +#define USBH_SC_USB_DEVICE_SEL BIT(6) + USBH_GENERIC_CONTROL, +#define USBH_GC_PLL_SUSPEND_EN BIT(1) + USBH_FRAME_ADJUST_VALUE, + USBH_SETUP, +#define USBH_S_IOC BIT(4) +#define USBH_S_IPP BIT(5) + USBH_MDIO, + USBH_MDIO32, + USBH_USB_SIM_CONTROL, +#define USBH_USC_LADDR_SEL BIT(5) + + __USBH_ENUM_SIZE +}; + +struct bcm63xx_usbh_phy_variant { + /* Registers */ + long regs[__USBH_ENUM_SIZE]; + + /* PLLC bits to set/clear for power on */ + u32 power_pllc_clr; + u32 power_pllc_set; + + /* Setup bits to set/clear for power on */ + u32 setup_clr; + u32 setup_set; + + /* Swap Control bits to set */ + u32 swapctl_dev_set; + + /* Test Port Control value to set if non-zero */ + u32 tpc_val; + + /* USB Sim Control bits to set */ + u32 usc_set; + + /* UTMI Control 1 bits to set */ + u32 utmictl1_dev_set; +}; + +struct bcm63xx_usbh_phy { + void __iomem *base; + struct clk *usbh_clk; + struct clk *usb_ref_clk; + struct reset_control *reset; + const struct bcm63xx_usbh_phy_variant *variant; + bool device_mode; +}; + +static const struct bcm63xx_usbh_phy_variant usbh_bcm6318 = { + .regs = { + [USBH_BRT_CONTROL1] = -1, + [USBH_BRT_CONTROL2] = -1, + [USBH_BRT_STATUS1] = -1, + [USBH_BRT_STATUS2] = -1, + [USBH_UTMI_CONTROL1] = 0x2c, + [USBH_TEST_PORT_CONTROL] = 0x1c, + [USBH_PLL_CONTROL1] = 0x04, + [USBH_SWAP_CONTROL] = 0x0c, + [USBH_GENERIC_CONTROL] = -1, + [USBH_FRAME_ADJUST_VALUE] = 0x08, + [USBH_SETUP] = 0x00, + [USBH_MDIO] = 0x14, + [USBH_MDIO32] = 0x18, + [USBH_USB_SIM_CONTROL] = 0x20, + }, + .power_pllc_clr = USBH_6318_PLLC_PLL_IDDQ_PWRDN, + .power_pllc_set = USBH_6318_PLLC_PLL_SUSPEND_EN, + .setup_set = USBH_S_IOC, + .swapctl_dev_set = USBH_SC_USB_DEVICE_SEL, + .usc_set = USBH_USC_LADDR_SEL, + .utmictl1_dev_set = USBH_UC1_DEV_MODE_SEL, +}; + +static const struct bcm63xx_usbh_phy_variant usbh_bcm6328 = { + .regs = { + [USBH_BRT_CONTROL1] = 0x00, + [USBH_BRT_CONTROL2] = 0x04, + [USBH_BRT_STATUS1] = 0x08, + [USBH_BRT_STATUS2] = 0x0c, + [USBH_UTMI_CONTROL1] = 0x10, + [USBH_TEST_PORT_CONTROL] = 0x14, + [USBH_PLL_CONTROL1] = 0x18, + [USBH_SWAP_CONTROL] = 0x1c, + [USBH_GENERIC_CONTROL] = 0x20, + [USBH_FRAME_ADJUST_VALUE] = 0x24, + [USBH_SETUP] = 0x28, + [USBH_MDIO] = 0x2c, + [USBH_MDIO32] = 0x30, + [USBH_USB_SIM_CONTROL] = 0x34, + }, + .setup_set = USBH_S_IOC, + .swapctl_dev_set = USBH_SC_USB_DEVICE_SEL, + .utmictl1_dev_set = USBH_UC1_DEV_MODE_SEL, +}; + +static const struct bcm63xx_usbh_phy_variant usbh_bcm6358 = { + .regs = { + [USBH_BRT_CONTROL1] = -1, + [USBH_BRT_CONTROL2] = -1, + [USBH_BRT_STATUS1] = -1, + [USBH_BRT_STATUS2] = -1, + [USBH_UTMI_CONTROL1] = -1, + [USBH_TEST_PORT_CONTROL] = 0x24, + [USBH_PLL_CONTROL1] = -1, + [USBH_SWAP_CONTROL] = 0x00, + [USBH_GENERIC_CONTROL] = -1, + [USBH_FRAME_ADJUST_VALUE] = -1, + [USBH_SETUP] = -1, + [USBH_MDIO] = -1, + [USBH_MDIO32] = -1, + [USBH_USB_SIM_CONTROL] = -1, + }, + /* + * The magic value comes for the original vendor BSP + * and is needed for USB to work. Datasheet does not + * help, so the magic value is used as-is. + */ + .tpc_val = 0x1c0020, +}; + +static const struct bcm63xx_usbh_phy_variant usbh_bcm6368 = { + .regs = { + [USBH_BRT_CONTROL1] = 0x00, + [USBH_BRT_CONTROL2] = 0x04, + [USBH_BRT_STATUS1] = 0x08, + [USBH_BRT_STATUS2] = 0x0c, + [USBH_UTMI_CONTROL1] = 0x10, + [USBH_TEST_PORT_CONTROL] = 0x14, + [USBH_PLL_CONTROL1] = 0x18, + [USBH_SWAP_CONTROL] = 0x1c, + [USBH_GENERIC_CONTROL] = -1, + [USBH_FRAME_ADJUST_VALUE] = 0x24, + [USBH_SETUP] = 0x28, + [USBH_MDIO] = 0x2c, + [USBH_MDIO32] = 0x30, + [USBH_USB_SIM_CONTROL] = 0x34, + }, + .power_pllc_clr = USBH_PLLC_PLL_IDDQ_PWRDN | USBH_PLLC_PLL_PWRDN_DELAY, + .setup_set = USBH_S_IOC, + .swapctl_dev_set = USBH_SC_USB_DEVICE_SEL, + .utmictl1_dev_set = USBH_UC1_DEV_MODE_SEL, +}; + +static const struct bcm63xx_usbh_phy_variant usbh_bcm63268 = { + .regs = { + [USBH_BRT_CONTROL1] = 0x00, + [USBH_BRT_CONTROL2] = 0x04, + [USBH_BRT_STATUS1] = 0x08, + [USBH_BRT_STATUS2] = 0x0c, + [USBH_UTMI_CONTROL1] = 0x10, + [USBH_TEST_PORT_CONTROL] = 0x14, + [USBH_PLL_CONTROL1] = 0x18, + [USBH_SWAP_CONTROL] = 0x1c, + [USBH_GENERIC_CONTROL] = 0x20, + [USBH_FRAME_ADJUST_VALUE] = 0x24, + [USBH_SETUP] = 0x28, + [USBH_MDIO] = 0x2c, + [USBH_MDIO32] = 0x30, + [USBH_USB_SIM_CONTROL] = 0x34, + }, + .power_pllc_clr = USBH_PLLC_PLL_IDDQ_PWRDN | USBH_PLLC_PLL_PWRDN_DELAY, + .setup_clr = USBH_S_IPP, + .setup_set = USBH_S_IOC, + .swapctl_dev_set = USBH_SC_USB_DEVICE_SEL, + .utmictl1_dev_set = USBH_UC1_DEV_MODE_SEL, +}; + +static inline bool usbh_has_reg(struct bcm63xx_usbh_phy *usbh, int reg) +{ + return (usbh->variant->regs[reg] >= 0); +} + +static inline u32 usbh_readl(struct bcm63xx_usbh_phy *usbh, int reg) +{ + return __raw_readl(usbh->base + usbh->variant->regs[reg]); +} + +static inline void usbh_writel(struct bcm63xx_usbh_phy *usbh, int reg, + u32 value) +{ + __raw_writel(value, usbh->base + usbh->variant->regs[reg]); +} + +static int bcm63xx_usbh_phy_init(struct phy *phy) +{ + struct bcm63xx_usbh_phy *usbh = phy_get_drvdata(phy); + int ret; + + ret = clk_prepare_enable(usbh->usbh_clk); + if (ret) { + dev_err(&phy->dev, "unable to enable usbh clock: %d\n", ret); + return ret; + } + + ret = clk_prepare_enable(usbh->usb_ref_clk); + if (ret) { + dev_err(&phy->dev, "unable to enable usb_ref clock: %d\n", ret); + clk_disable_unprepare(usbh->usbh_clk); + return ret; + } + + ret = reset_control_reset(usbh->reset); + if (ret) { + dev_err(&phy->dev, "unable to reset device: %d\n", ret); + clk_disable_unprepare(usbh->usb_ref_clk); + clk_disable_unprepare(usbh->usbh_clk); + return ret; + } + + /* Configure to work in native CPU endian */ + if (usbh_has_reg(usbh, USBH_SWAP_CONTROL)) { + u32 val = usbh_readl(usbh, USBH_SWAP_CONTROL); + + val |= USBH_SC_EHCI_DATA_SWAP; + val &= ~USBH_SC_EHCI_ENDIAN_SWAP; + + val |= USBH_SC_OHCI_DATA_SWAP; + val &= ~USBH_SC_OHCI_ENDIAN_SWAP; + + if (usbh->device_mode && usbh->variant->swapctl_dev_set) + val |= usbh->variant->swapctl_dev_set; + + usbh_writel(usbh, USBH_SWAP_CONTROL, val); + } + + if (usbh_has_reg(usbh, USBH_SETUP)) { + u32 val = usbh_readl(usbh, USBH_SETUP); + + val |= usbh->variant->setup_set; + val &= ~usbh->variant->setup_clr; + + usbh_writel(usbh, USBH_SETUP, val); + } + + if (usbh_has_reg(usbh, USBH_USB_SIM_CONTROL)) { + u32 val = usbh_readl(usbh, USBH_USB_SIM_CONTROL); + + val |= usbh->variant->usc_set; + + usbh_writel(usbh, USBH_USB_SIM_CONTROL, val); + } + + if (usbh->variant->tpc_val && + usbh_has_reg(usbh, USBH_TEST_PORT_CONTROL)) + usbh_writel(usbh, USBH_TEST_PORT_CONTROL, + usbh->variant->tpc_val); + + if (usbh->device_mode && + usbh_has_reg(usbh, USBH_UTMI_CONTROL1) && + usbh->variant->utmictl1_dev_set) { + u32 val = usbh_readl(usbh, USBH_UTMI_CONTROL1); + + val |= usbh->variant->utmictl1_dev_set; + + usbh_writel(usbh, USBH_UTMI_CONTROL1, val); + } + + return 0; +} + +static int bcm63xx_usbh_phy_power_on(struct phy *phy) +{ + struct bcm63xx_usbh_phy *usbh = phy_get_drvdata(phy); + + if (usbh_has_reg(usbh, USBH_PLL_CONTROL1)) { + u32 val = usbh_readl(usbh, USBH_PLL_CONTROL1); + + val |= usbh->variant->power_pllc_set; + val &= ~usbh->variant->power_pllc_clr; + + usbh_writel(usbh, USBH_PLL_CONTROL1, val); + } + + return 0; +} + +static int bcm63xx_usbh_phy_power_off(struct phy *phy) +{ + struct bcm63xx_usbh_phy *usbh = phy_get_drvdata(phy); + + if (usbh_has_reg(usbh, USBH_PLL_CONTROL1)) { + u32 val = usbh_readl(usbh, USBH_PLL_CONTROL1); + + val &= ~usbh->variant->power_pllc_set; + val |= usbh->variant->power_pllc_clr; + + usbh_writel(usbh, USBH_PLL_CONTROL1, val); + } + + return 0; +} + +static int bcm63xx_usbh_phy_exit(struct phy *phy) +{ + struct bcm63xx_usbh_phy *usbh = phy_get_drvdata(phy); + + clk_disable_unprepare(usbh->usbh_clk); + clk_disable_unprepare(usbh->usb_ref_clk); + + return 0; +} + +static const struct phy_ops bcm63xx_usbh_phy_ops = { + .exit = bcm63xx_usbh_phy_exit, + .init = bcm63xx_usbh_phy_init, + .power_off = bcm63xx_usbh_phy_power_off, + .power_on = bcm63xx_usbh_phy_power_on, + .owner = THIS_MODULE, +}; + +static struct phy *bcm63xx_usbh_phy_xlate(struct device *dev, + struct of_phandle_args *args) +{ + struct bcm63xx_usbh_phy *usbh = dev_get_drvdata(dev); + + usbh->device_mode = !!args->args[0]; + + return of_phy_simple_xlate(dev, args); +} + +static int __init bcm63xx_usbh_phy_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct bcm63xx_usbh_phy *usbh; + const struct bcm63xx_usbh_phy_variant *variant; + struct phy *phy; + struct phy_provider *phy_provider; + + usbh = devm_kzalloc(dev, sizeof(*usbh), GFP_KERNEL); + if (!usbh) + return -ENOMEM; + + variant = device_get_match_data(dev); + if (!variant) + return -EINVAL; + usbh->variant = variant; + + usbh->base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(usbh->base)) + return PTR_ERR(usbh->base); + + usbh->reset = devm_reset_control_get_exclusive(dev, NULL); + if (IS_ERR(usbh->reset)) { + if (PTR_ERR(usbh->reset) != -EPROBE_DEFER) + dev_err(dev, "failed to get reset\n"); + return PTR_ERR(usbh->reset); + } + + usbh->usbh_clk = devm_clk_get_optional(dev, "usbh"); + if (IS_ERR(usbh->usbh_clk)) + return PTR_ERR(usbh->usbh_clk); + + usbh->usb_ref_clk = devm_clk_get_optional(dev, "usb_ref"); + if (IS_ERR(usbh->usb_ref_clk)) + return PTR_ERR(usbh->usb_ref_clk); + + phy = devm_phy_create(dev, NULL, &bcm63xx_usbh_phy_ops); + if (IS_ERR(phy)) { + dev_err(dev, "failed to create PHY\n"); + return PTR_ERR(phy); + } + + platform_set_drvdata(pdev, usbh); + phy_set_drvdata(phy, usbh); + + phy_provider = devm_of_phy_provider_register(dev, + bcm63xx_usbh_phy_xlate); + if (IS_ERR(phy_provider)) { + dev_err(dev, "failed to register PHY provider\n"); + return PTR_ERR(phy_provider); + } + + dev_dbg(dev, "Registered BCM63xx USB PHY driver\n"); + + return 0; +} + +static const struct of_device_id bcm63xx_usbh_phy_ids[] __initconst = { + { .compatible = "brcm,bcm6318-usbh-phy", .data = &usbh_bcm6318 }, + { .compatible = "brcm,bcm6328-usbh-phy", .data = &usbh_bcm6328 }, + { .compatible = "brcm,bcm6358-usbh-phy", .data = &usbh_bcm6358 }, + { .compatible = "brcm,bcm6362-usbh-phy", .data = &usbh_bcm6368 }, + { .compatible = "brcm,bcm6368-usbh-phy", .data = &usbh_bcm6368 }, + { .compatible = "brcm,bcm63268-usbh-phy", .data = &usbh_bcm63268 }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, bcm63xx_usbh_phy_ids); + +static struct platform_driver bcm63xx_usbh_phy_driver __refdata = { + .driver = { + .name = "bcm63xx-usbh-phy", + .of_match_table = bcm63xx_usbh_phy_ids, + }, + .probe = bcm63xx_usbh_phy_probe, +}; +module_platform_driver(bcm63xx_usbh_phy_driver); + +MODULE_DESCRIPTION("BCM63xx USBH PHY driver"); +MODULE_AUTHOR("Álvaro Fernández Rojas <noltari@gmail.com>"); +MODULE_AUTHOR("Simon Arlott"); +MODULE_LICENSE("GPL"); diff --git a/drivers/phy/cadence/phy-cadence-salvo.c b/drivers/phy/cadence/phy-cadence-salvo.c index 1ecbb964cd21..016514e4aa54 100644 --- a/drivers/phy/cadence/phy-cadence-salvo.c +++ b/drivers/phy/cadence/phy-cadence-salvo.c @@ -88,7 +88,7 @@ #define TB_ADDR_TX_RCVDETSC_CTRL 0x4124 /* TB_ADDR_TX_RCVDETSC_CTRL */ -#define RXDET_IN_P3_32KHZ BIT(1) +#define RXDET_IN_P3_32KHZ BIT(0) struct cdns_reg_pairs { u16 val; diff --git a/drivers/phy/marvell/phy-armada38x-comphy.c b/drivers/phy/marvell/phy-armada38x-comphy.c index 6960dfd8ad8c..0fe408964334 100644 --- a/drivers/phy/marvell/phy-armada38x-comphy.c +++ b/drivers/phy/marvell/phy-armada38x-comphy.c @@ -41,6 +41,7 @@ struct a38x_comphy_lane { struct a38x_comphy { void __iomem *base; + void __iomem *conf; struct device *dev; struct a38x_comphy_lane lane[MAX_A38X_COMPHY]; }; @@ -54,6 +55,21 @@ static const u8 gbe_mux[MAX_A38X_COMPHY][MAX_A38X_PORTS] = { { 0, 0, 3 }, }; +static void a38x_set_conf(struct a38x_comphy_lane *lane, bool enable) +{ + struct a38x_comphy *priv = lane->priv; + u32 conf; + + if (priv->conf) { + conf = readl_relaxed(priv->conf); + if (enable) + conf |= BIT(lane->port); + else + conf &= ~BIT(lane->port); + writel(conf, priv->conf); + } +} + static void a38x_comphy_set_reg(struct a38x_comphy_lane *lane, unsigned int offset, u32 mask, u32 value) { @@ -97,6 +113,7 @@ static int a38x_comphy_set_mode(struct phy *phy, enum phy_mode mode, int sub) { struct a38x_comphy_lane *lane = phy_get_drvdata(phy); unsigned int gen; + int ret; if (mode != PHY_MODE_ETHERNET) return -EINVAL; @@ -115,13 +132,20 @@ static int a38x_comphy_set_mode(struct phy *phy, enum phy_mode mode, int sub) return -EINVAL; } + a38x_set_conf(lane, false); + a38x_comphy_set_speed(lane, gen, gen); - return a38x_comphy_poll(lane, COMPHY_STAT1, - COMPHY_STAT1_PLL_RDY_TX | - COMPHY_STAT1_PLL_RDY_RX, - COMPHY_STAT1_PLL_RDY_TX | - COMPHY_STAT1_PLL_RDY_RX); + ret = a38x_comphy_poll(lane, COMPHY_STAT1, + COMPHY_STAT1_PLL_RDY_TX | + COMPHY_STAT1_PLL_RDY_RX, + COMPHY_STAT1_PLL_RDY_TX | + COMPHY_STAT1_PLL_RDY_RX); + + if (ret == 0) + a38x_set_conf(lane, true); + + return ret; } static const struct phy_ops a38x_comphy_ops = { @@ -174,14 +198,21 @@ static int a38x_comphy_probe(struct platform_device *pdev) if (!priv) return -ENOMEM; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - base = devm_ioremap_resource(&pdev->dev, res); + base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(base)) return PTR_ERR(base); priv->dev = &pdev->dev; priv->base = base; + /* Optional */ + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "conf"); + if (res) { + priv->conf = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(priv->conf)) + return PTR_ERR(priv->conf); + } + for_each_available_child_of_node(pdev->dev.of_node, child) { struct phy *phy; int ret; diff --git a/drivers/phy/marvell/phy-mvebu-a3700-utmi.c b/drivers/phy/marvell/phy-mvebu-a3700-utmi.c index 23bc3bf5c4c0..8834436bc9db 100644 --- a/drivers/phy/marvell/phy-mvebu-a3700-utmi.c +++ b/drivers/phy/marvell/phy-mvebu-a3700-utmi.c @@ -72,7 +72,7 @@ struct mvebu_a3700_utmi_caps { * struct mvebu_a3700_utmi - PHY driver data * * @regs: PHY registers - * @usb_mis: Regmap with USB miscellaneous registers including PHY ones + * @usb_misc: Regmap with USB miscellaneous registers including PHY ones * @caps: PHY capabilities * @phy: PHY handle */ diff --git a/drivers/phy/motorola/phy-mapphone-mdm6600.c b/drivers/phy/motorola/phy-mapphone-mdm6600.c index 94a34cf75eb3..5172971f4c36 100644 --- a/drivers/phy/motorola/phy-mapphone-mdm6600.c +++ b/drivers/phy/motorola/phy-mapphone-mdm6600.c @@ -178,6 +178,7 @@ static const struct phy_ops gpio_usb_ops = { /** * phy_mdm6600_cmd() - send a command request to mdm6600 * @ddata: device driver data + * @val: value of cmd to be set * * Configures the three command request GPIOs to the specified value. */ @@ -194,7 +195,7 @@ static void phy_mdm6600_cmd(struct phy_mdm6600 *ddata, int val) /** * phy_mdm6600_status() - read mdm6600 status lines - * @ddata: device driver data + * @work: work structure */ static void phy_mdm6600_status(struct work_struct *work) { diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c index a27b8d578d7f..71cb10826326 100644 --- a/drivers/phy/phy-core.c +++ b/drivers/phy/phy-core.c @@ -1062,6 +1062,7 @@ EXPORT_SYMBOL_GPL(__of_phy_provider_register); * __devm_of_phy_provider_register() - create/register phy provider with the * framework * @dev: struct device of the phy provider + * @children: device node containing children (if different from dev->of_node) * @owner: the module owner containing of_xlate * @of_xlate: function pointer to obtain phy instance from phy provider * @@ -1117,12 +1118,14 @@ EXPORT_SYMBOL_GPL(of_phy_provider_unregister); /** * devm_of_phy_provider_unregister() - remove phy provider from the framework * @dev: struct device of the phy provider + * @phy_provider: phy provider returned by of_phy_provider_register() * * destroys the devres associated with this phy provider and invokes * of_phy_provider_unregister to unregister the phy provider. */ void devm_of_phy_provider_unregister(struct device *dev, - struct phy_provider *phy_provider) { + struct phy_provider *phy_provider) +{ int r; r = devres_destroy(dev, devm_phy_provider_release, devm_phy_match, diff --git a/drivers/phy/phy-xgene.c b/drivers/phy/phy-xgene.c index 7a33ec12f71b..b88922e7de1d 100644 --- a/drivers/phy/phy-xgene.c +++ b/drivers/phy/phy-xgene.c @@ -1615,7 +1615,7 @@ static struct phy *xgene_phy_xlate(struct device *dev, if (args->args_count <= 0) return ERR_PTR(-EINVAL); - if (args->args[0] < MODE_SATA || args->args[0] >= MODE_MAX) + if (args->args[0] >= MODE_MAX) return ERR_PTR(-EINVAL); ctx->mode = args->args[0]; diff --git a/drivers/phy/qualcomm/Kconfig b/drivers/phy/qualcomm/Kconfig index ca9ce7e84a5c..928db510b86c 100644 --- a/drivers/phy/qualcomm/Kconfig +++ b/drivers/phy/qualcomm/Kconfig @@ -59,30 +59,6 @@ config PHY_QCOM_QUSB2 PHY which is usually paired with either the ChipIdea or Synopsys DWC3 USB IPs on MSM SOCs. -config PHY_QCOM_UFS - tristate "Qualcomm UFS PHY driver" - depends on OF && ARCH_QCOM - select GENERIC_PHY - help - Support for UFS PHY on QCOM chipsets. - -if PHY_QCOM_UFS - -config PHY_QCOM_UFS_14NM - tristate - default PHY_QCOM_UFS - help - Support for 14nm UFS QMP phy present on QCOM chipsets. - -config PHY_QCOM_UFS_20NM - tristate - default PHY_QCOM_UFS - depends on BROKEN - help - Support for 20nm UFS QMP phy present on QCOM chipsets. - -endif - config PHY_QCOM_USB_HS tristate "Qualcomm USB HS PHY module" depends on USB_ULPI_BUS @@ -128,3 +104,13 @@ config PHY_QCOM_USB_SS help Enable this to support the Super-Speed USB transceiver on various Qualcomm chipsets. + +config PHY_QCOM_IPQ806X_USB + tristate "Qualcomm IPQ806x DWC3 USB PHY driver" + depends on HAS_IOMEM + depends on OF && (ARCH_QCOM || COMPILE_TEST) + select GENERIC_PHY + help + This option enables support for the Synopsis PHYs present inside the + Qualcomm USB3.0 DWC3 controller on ipq806x SoC. This driver supports + both HS and SS PHY controllers. diff --git a/drivers/phy/qualcomm/Makefile b/drivers/phy/qualcomm/Makefile index 86fb32efab79..47acbd7daa3a 100644 --- a/drivers/phy/qualcomm/Makefile +++ b/drivers/phy/qualcomm/Makefile @@ -6,11 +6,9 @@ obj-$(CONFIG_PHY_QCOM_IPQ806X_SATA) += phy-qcom-ipq806x-sata.o obj-$(CONFIG_PHY_QCOM_PCIE2) += phy-qcom-pcie2.o obj-$(CONFIG_PHY_QCOM_QMP) += phy-qcom-qmp.o obj-$(CONFIG_PHY_QCOM_QUSB2) += phy-qcom-qusb2.o -obj-$(CONFIG_PHY_QCOM_UFS) += phy-qcom-ufs.o -obj-$(CONFIG_PHY_QCOM_UFS_14NM) += phy-qcom-ufs-qmp-14nm.o -obj-$(CONFIG_PHY_QCOM_UFS_20NM) += phy-qcom-ufs-qmp-20nm.o obj-$(CONFIG_PHY_QCOM_USB_HS) += phy-qcom-usb-hs.o obj-$(CONFIG_PHY_QCOM_USB_HSIC) += phy-qcom-usb-hsic.o obj-$(CONFIG_PHY_QCOM_USB_HS_28NM) += phy-qcom-usb-hs-28nm.o obj-$(CONFIG_PHY_QCOM_USB_SS) += phy-qcom-usb-ss.o obj-$(CONFIG_PHY_QCOM_USB_SNPS_FEMTO_V2)+= phy-qcom-snps-femto-v2.o +obj-$(CONFIG_PHY_QCOM_IPQ806X_USB) += phy-qcom-ipq806x-usb.o diff --git a/drivers/phy/qualcomm/phy-qcom-ipq806x-usb.c b/drivers/phy/qualcomm/phy-qcom-ipq806x-usb.c new file mode 100644 index 000000000000..71f257b4a7f5 --- /dev/null +++ b/drivers/phy/qualcomm/phy-qcom-ipq806x-usb.c @@ -0,0 +1,571 @@ +// SPDX-License-Identifier: GPL-2.0-only + +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include <linux/phy/phy.h> +#include <linux/platform_device.h> +#include <linux/delay.h> +#include <linux/regmap.h> +#include <linux/mfd/syscon.h> + +/* USB QSCRATCH Hardware registers */ +#define QSCRATCH_GENERAL_CFG (0x08) +#define HSUSB_PHY_CTRL_REG (0x10) + +/* PHY_CTRL_REG */ +#define HSUSB_CTRL_DMSEHV_CLAMP BIT(24) +#define HSUSB_CTRL_USB2_SUSPEND BIT(23) +#define HSUSB_CTRL_UTMI_CLK_EN BIT(21) +#define HSUSB_CTRL_UTMI_OTG_VBUS_VALID BIT(20) +#define HSUSB_CTRL_USE_CLKCORE BIT(18) +#define HSUSB_CTRL_DPSEHV_CLAMP BIT(17) +#define HSUSB_CTRL_COMMONONN BIT(11) +#define HSUSB_CTRL_ID_HV_CLAMP BIT(9) +#define HSUSB_CTRL_OTGSESSVLD_CLAMP BIT(8) +#define HSUSB_CTRL_CLAMP_EN BIT(7) +#define HSUSB_CTRL_RETENABLEN BIT(1) +#define HSUSB_CTRL_POR BIT(0) + +/* QSCRATCH_GENERAL_CFG */ +#define HSUSB_GCFG_XHCI_REV BIT(2) + +/* USB QSCRATCH Hardware registers */ +#define SSUSB_PHY_CTRL_REG (0x00) +#define SSUSB_PHY_PARAM_CTRL_1 (0x04) +#define SSUSB_PHY_PARAM_CTRL_2 (0x08) +#define CR_PROTOCOL_DATA_IN_REG (0x0c) +#define CR_PROTOCOL_DATA_OUT_REG (0x10) +#define CR_PROTOCOL_CAP_ADDR_REG (0x14) +#define CR_PROTOCOL_CAP_DATA_REG (0x18) +#define CR_PROTOCOL_READ_REG (0x1c) +#define CR_PROTOCOL_WRITE_REG (0x20) + +/* PHY_CTRL_REG */ +#define SSUSB_CTRL_REF_USE_PAD BIT(28) +#define SSUSB_CTRL_TEST_POWERDOWN BIT(27) +#define SSUSB_CTRL_LANE0_PWR_PRESENT BIT(24) +#define SSUSB_CTRL_SS_PHY_EN BIT(8) +#define SSUSB_CTRL_SS_PHY_RESET BIT(7) + +/* SSPHY control registers - Does this need 0x30? */ +#define SSPHY_CTRL_RX_OVRD_IN_HI(lane) (0x1006 + 0x100 * (lane)) +#define SSPHY_CTRL_TX_OVRD_DRV_LO(lane) (0x1002 + 0x100 * (lane)) + +/* SSPHY SoC version specific values */ +#define SSPHY_RX_EQ_VALUE 4 /* Override value for rx_eq */ +/* Override value for transmit preemphasis */ +#define SSPHY_TX_DEEMPH_3_5DB 23 +/* Override value for mpll */ +#define SSPHY_MPLL_VALUE 0 + +/* QSCRATCH PHY_PARAM_CTRL1 fields */ +#define PHY_PARAM_CTRL1_TX_FULL_SWING_MASK GENMASK(26, 19) +#define PHY_PARAM_CTRL1_TX_DEEMPH_6DB_MASK GENMASK(19, 13) +#define PHY_PARAM_CTRL1_TX_DEEMPH_3_5DB_MASK GENMASK(13, 7) +#define PHY_PARAM_CTRL1_LOS_BIAS_MASK GENMASK(7, 2) + +#define PHY_PARAM_CTRL1_MASK \ + (PHY_PARAM_CTRL1_TX_FULL_SWING_MASK | \ + PHY_PARAM_CTRL1_TX_DEEMPH_6DB_MASK | \ + PHY_PARAM_CTRL1_TX_DEEMPH_3_5DB_MASK | \ + PHY_PARAM_CTRL1_LOS_BIAS_MASK) + +#define PHY_PARAM_CTRL1_TX_FULL_SWING(x) \ + (((x) << 20) & PHY_PARAM_CTRL1_TX_FULL_SWING_MASK) +#define PHY_PARAM_CTRL1_TX_DEEMPH_6DB(x) \ + (((x) << 14) & PHY_PARAM_CTRL1_TX_DEEMPH_6DB_MASK) +#define PHY_PARAM_CTRL1_TX_DEEMPH_3_5DB(x) \ + (((x) << 8) & PHY_PARAM_CTRL1_TX_DEEMPH_3_5DB_MASK) +#define PHY_PARAM_CTRL1_LOS_BIAS(x) \ + (((x) << 3) & PHY_PARAM_CTRL1_LOS_BIAS_MASK) + +/* RX OVRD IN HI bits */ +#define RX_OVRD_IN_HI_RX_RESET_OVRD BIT(13) +#define RX_OVRD_IN_HI_RX_RX_RESET BIT(12) +#define RX_OVRD_IN_HI_RX_EQ_OVRD BIT(11) +#define RX_OVRD_IN_HI_RX_EQ_MASK GENMASK(10, 7) +#define RX_OVRD_IN_HI_RX_EQ(x) ((x) << 8) +#define RX_OVRD_IN_HI_RX_EQ_EN_OVRD BIT(7) +#define RX_OVRD_IN_HI_RX_EQ_EN BIT(6) +#define RX_OVRD_IN_HI_RX_LOS_FILTER_OVRD BIT(5) +#define RX_OVRD_IN_HI_RX_LOS_FILTER_MASK GENMASK(4, 2) +#define RX_OVRD_IN_HI_RX_RATE_OVRD BIT(2) +#define RX_OVRD_IN_HI_RX_RATE_MASK GENMASK(2, 0) + +/* TX OVRD DRV LO register bits */ +#define TX_OVRD_DRV_LO_AMPLITUDE_MASK GENMASK(6, 0) +#define TX_OVRD_DRV_LO_PREEMPH_MASK GENMASK(13, 6) +#define TX_OVRD_DRV_LO_PREEMPH(x) ((x) << 7) +#define TX_OVRD_DRV_LO_EN BIT(14) + +/* MPLL bits */ +#define SSPHY_MPLL_MASK GENMASK(8, 5) +#define SSPHY_MPLL(x) ((x) << 5) + +/* SS CAP register bits */ +#define SS_CR_CAP_ADDR_REG BIT(0) +#define SS_CR_CAP_DATA_REG BIT(0) +#define SS_CR_READ_REG BIT(0) +#define SS_CR_WRITE_REG BIT(0) + +struct usb_phy { + void __iomem *base; + struct device *dev; + struct clk *xo_clk; + struct clk *ref_clk; + u32 rx_eq; + u32 tx_deamp_3_5db; + u32 mpll; +}; + +struct phy_drvdata { + struct phy_ops ops; + u32 clk_rate; +}; + +/** + * Write register and read back masked value to confirm it is written + * + * @base - QCOM DWC3 PHY base virtual address. + * @offset - register offset. + * @mask - register bitmask specifying what should be updated + * @val - value to write. + */ +static inline void usb_phy_write_readback(struct usb_phy *phy_dwc3, + u32 offset, + const u32 mask, u32 val) +{ + u32 write_val, tmp = readl(phy_dwc3->base + offset); + + tmp &= ~mask; /* retain other bits */ + write_val = tmp | val; + + writel(write_val, phy_dwc3->base + offset); + + /* Read back to see if val was written */ + tmp = readl(phy_dwc3->base + offset); + tmp &= mask; /* clear other bits */ + + if (tmp != val) + dev_err(phy_dwc3->dev, "write: %x to QSCRATCH: %x FAILED\n", val, offset); +} + +static int wait_for_latch(void __iomem *addr) +{ + u32 retry = 10; + + while (true) { + if (!readl(addr)) + break; + + if (--retry == 0) + return -ETIMEDOUT; + + usleep_range(10, 20); + } + + return 0; +} + +/** + * Write SSPHY register + * + * @base - QCOM DWC3 PHY base virtual address. + * @addr - SSPHY address to write. + * @val - value to write. + */ +static int usb_ss_write_phycreg(struct usb_phy *phy_dwc3, + u32 addr, u32 val) +{ + int ret; + + writel(addr, phy_dwc3->base + CR_PROTOCOL_DATA_IN_REG); + writel(SS_CR_CAP_ADDR_REG, + phy_dwc3->base + CR_PROTOCOL_CAP_ADDR_REG); + + ret = wait_for_latch(phy_dwc3->base + CR_PROTOCOL_CAP_ADDR_REG); + if (ret) + goto err_wait; + + writel(val, phy_dwc3->base + CR_PROTOCOL_DATA_IN_REG); + writel(SS_CR_CAP_DATA_REG, + phy_dwc3->base + CR_PROTOCOL_CAP_DATA_REG); + + ret = wait_for_latch(phy_dwc3->base + CR_PROTOCOL_CAP_DATA_REG); + if (ret) + goto err_wait; + + writel(SS_CR_WRITE_REG, phy_dwc3->base + CR_PROTOCOL_WRITE_REG); + + ret = wait_for_latch(phy_dwc3->base + CR_PROTOCOL_WRITE_REG); + +err_wait: + if (ret) + dev_err(phy_dwc3->dev, "timeout waiting for latch\n"); + return ret; +} + +/** + * Read SSPHY register. + * + * @base - QCOM DWC3 PHY base virtual address. + * @addr - SSPHY address to read. + */ +static int usb_ss_read_phycreg(struct usb_phy *phy_dwc3, + u32 addr, u32 *val) +{ + int ret; + + writel(addr, phy_dwc3->base + CR_PROTOCOL_DATA_IN_REG); + writel(SS_CR_CAP_ADDR_REG, + phy_dwc3->base + CR_PROTOCOL_CAP_ADDR_REG); + + ret = wait_for_latch(phy_dwc3->base + CR_PROTOCOL_CAP_ADDR_REG); + if (ret) + goto err_wait; + + /* + * Due to hardware bug, first read of SSPHY register might be + * incorrect. Hence as workaround, SW should perform SSPHY register + * read twice, but use only second read and ignore first read. + */ + writel(SS_CR_READ_REG, phy_dwc3->base + CR_PROTOCOL_READ_REG); + + ret = wait_for_latch(phy_dwc3->base + CR_PROTOCOL_READ_REG); + if (ret) + goto err_wait; + + /* throwaway read */ + readl(phy_dwc3->base + CR_PROTOCOL_DATA_OUT_REG); + + writel(SS_CR_READ_REG, phy_dwc3->base + CR_PROTOCOL_READ_REG); + + ret = wait_for_latch(phy_dwc3->base + CR_PROTOCOL_READ_REG); + if (ret) + goto err_wait; + + *val = readl(phy_dwc3->base + CR_PROTOCOL_DATA_OUT_REG); + +err_wait: + return ret; +} + +static int qcom_ipq806x_usb_hs_phy_init(struct phy *phy) +{ + struct usb_phy *phy_dwc3 = phy_get_drvdata(phy); + int ret; + u32 val; + + ret = clk_prepare_enable(phy_dwc3->xo_clk); + if (ret) + return ret; + + ret = clk_prepare_enable(phy_dwc3->ref_clk); + if (ret) { + clk_disable_unprepare(phy_dwc3->xo_clk); + return ret; + } + + /* + * HSPHY Initialization: Enable UTMI clock, select 19.2MHz fsel + * enable clamping, and disable RETENTION (power-on default is ENABLED) + */ + val = HSUSB_CTRL_DPSEHV_CLAMP | HSUSB_CTRL_DMSEHV_CLAMP | + HSUSB_CTRL_RETENABLEN | HSUSB_CTRL_COMMONONN | + HSUSB_CTRL_OTGSESSVLD_CLAMP | HSUSB_CTRL_ID_HV_CLAMP | + HSUSB_CTRL_DPSEHV_CLAMP | HSUSB_CTRL_UTMI_OTG_VBUS_VALID | + HSUSB_CTRL_UTMI_CLK_EN | HSUSB_CTRL_CLAMP_EN | 0x70; + + /* use core clock if external reference is not present */ + if (!phy_dwc3->xo_clk) + val |= HSUSB_CTRL_USE_CLKCORE; + + writel(val, phy_dwc3->base + HSUSB_PHY_CTRL_REG); + usleep_range(2000, 2200); + + /* Disable (bypass) VBUS and ID filters */ + writel(HSUSB_GCFG_XHCI_REV, phy_dwc3->base + QSCRATCH_GENERAL_CFG); + + return 0; +} + +static int qcom_ipq806x_usb_hs_phy_exit(struct phy *phy) +{ + struct usb_phy *phy_dwc3 = phy_get_drvdata(phy); + + clk_disable_unprepare(phy_dwc3->ref_clk); + clk_disable_unprepare(phy_dwc3->xo_clk); + + return 0; +} + +static int qcom_ipq806x_usb_ss_phy_init(struct phy *phy) +{ + struct usb_phy *phy_dwc3 = phy_get_drvdata(phy); + int ret; + u32 data; + + ret = clk_prepare_enable(phy_dwc3->xo_clk); + if (ret) + return ret; + + ret = clk_prepare_enable(phy_dwc3->ref_clk); + if (ret) { + clk_disable_unprepare(phy_dwc3->xo_clk); + return ret; + } + + /* reset phy */ + data = readl(phy_dwc3->base + SSUSB_PHY_CTRL_REG); + writel(data | SSUSB_CTRL_SS_PHY_RESET, + phy_dwc3->base + SSUSB_PHY_CTRL_REG); + usleep_range(2000, 2200); + writel(data, phy_dwc3->base + SSUSB_PHY_CTRL_REG); + + /* clear REF_PAD if we don't have XO clk */ + if (!phy_dwc3->xo_clk) + data &= ~SSUSB_CTRL_REF_USE_PAD; + else + data |= SSUSB_CTRL_REF_USE_PAD; + + writel(data, phy_dwc3->base + SSUSB_PHY_CTRL_REG); + + /* wait for ref clk to become stable, this can take up to 30ms */ + msleep(30); + + data |= SSUSB_CTRL_SS_PHY_EN | SSUSB_CTRL_LANE0_PWR_PRESENT; + writel(data, phy_dwc3->base + SSUSB_PHY_CTRL_REG); + + /* + * WORKAROUND: There is SSPHY suspend bug due to which USB enumerates + * in HS mode instead of SS mode. Workaround it by asserting + * LANE0.TX_ALT_BLOCK.EN_ALT_BUS to enable TX to use alt bus mode + */ + ret = usb_ss_read_phycreg(phy_dwc3, 0x102D, &data); + if (ret) + goto err_phy_trans; + + data |= (1 << 7); + ret = usb_ss_write_phycreg(phy_dwc3, 0x102D, data); + if (ret) + goto err_phy_trans; + + ret = usb_ss_read_phycreg(phy_dwc3, 0x1010, &data); + if (ret) + goto err_phy_trans; + + data &= ~0xff0; + data |= 0x20; + ret = usb_ss_write_phycreg(phy_dwc3, 0x1010, data); + if (ret) + goto err_phy_trans; + + /* + * Fix RX Equalization setting as follows + * LANE0.RX_OVRD_IN_HI. RX_EQ_EN set to 0 + * LANE0.RX_OVRD_IN_HI.RX_EQ_EN_OVRD set to 1 + * LANE0.RX_OVRD_IN_HI.RX_EQ set based on SoC version + * LANE0.RX_OVRD_IN_HI.RX_EQ_OVRD set to 1 + */ + ret = usb_ss_read_phycreg(phy_dwc3, SSPHY_CTRL_RX_OVRD_IN_HI(0), &data); + if (ret) + goto err_phy_trans; + + data &= ~RX_OVRD_IN_HI_RX_EQ_EN; + data |= RX_OVRD_IN_HI_RX_EQ_EN_OVRD; + data &= ~RX_OVRD_IN_HI_RX_EQ_MASK; + data |= RX_OVRD_IN_HI_RX_EQ(phy_dwc3->rx_eq); + data |= RX_OVRD_IN_HI_RX_EQ_OVRD; + ret = usb_ss_write_phycreg(phy_dwc3, + SSPHY_CTRL_RX_OVRD_IN_HI(0), data); + if (ret) + goto err_phy_trans; + + /* + * Set EQ and TX launch amplitudes as follows + * LANE0.TX_OVRD_DRV_LO.PREEMPH set based on SoC version + * LANE0.TX_OVRD_DRV_LO.AMPLITUDE set to 110 + * LANE0.TX_OVRD_DRV_LO.EN set to 1. + */ + ret = usb_ss_read_phycreg(phy_dwc3, + SSPHY_CTRL_TX_OVRD_DRV_LO(0), &data); + if (ret) + goto err_phy_trans; + + data &= ~TX_OVRD_DRV_LO_PREEMPH_MASK; + data |= TX_OVRD_DRV_LO_PREEMPH(phy_dwc3->tx_deamp_3_5db); + data &= ~TX_OVRD_DRV_LO_AMPLITUDE_MASK; + data |= 0x6E; + data |= TX_OVRD_DRV_LO_EN; + ret = usb_ss_write_phycreg(phy_dwc3, + SSPHY_CTRL_TX_OVRD_DRV_LO(0), data); + if (ret) + goto err_phy_trans; + + data = 0; + data &= ~SSPHY_MPLL_MASK; + data |= SSPHY_MPLL(phy_dwc3->mpll); + usb_ss_write_phycreg(phy_dwc3, 0x30, data); + + /* + * Set the QSCRATCH PHY_PARAM_CTRL1 parameters as follows + * TX_FULL_SWING [26:20] amplitude to 110 + * TX_DEEMPH_6DB [19:14] to 32 + * TX_DEEMPH_3_5DB [13:8] set based on SoC version + * LOS_BIAS [7:3] to 9 + */ + data = readl(phy_dwc3->base + SSUSB_PHY_PARAM_CTRL_1); + + data &= ~PHY_PARAM_CTRL1_MASK; + + data |= PHY_PARAM_CTRL1_TX_FULL_SWING(0x6e) | + PHY_PARAM_CTRL1_TX_DEEMPH_6DB(0x20) | + PHY_PARAM_CTRL1_TX_DEEMPH_3_5DB(phy_dwc3->tx_deamp_3_5db) | + PHY_PARAM_CTRL1_LOS_BIAS(0x9); + + usb_phy_write_readback(phy_dwc3, SSUSB_PHY_PARAM_CTRL_1, + PHY_PARAM_CTRL1_MASK, data); + +err_phy_trans: + return ret; +} + +static int qcom_ipq806x_usb_ss_phy_exit(struct phy *phy) +{ + struct usb_phy *phy_dwc3 = phy_get_drvdata(phy); + + /* Sequence to put SSPHY in low power state: + * 1. Clear REF_PHY_EN in PHY_CTRL_REG + * 2. Clear REF_USE_PAD in PHY_CTRL_REG + * 3. Set TEST_POWERED_DOWN in PHY_CTRL_REG to enable PHY retention + */ + usb_phy_write_readback(phy_dwc3, SSUSB_PHY_CTRL_REG, + SSUSB_CTRL_SS_PHY_EN, 0x0); + usb_phy_write_readback(phy_dwc3, SSUSB_PHY_CTRL_REG, + SSUSB_CTRL_REF_USE_PAD, 0x0); + usb_phy_write_readback(phy_dwc3, SSUSB_PHY_CTRL_REG, + SSUSB_CTRL_TEST_POWERDOWN, 0x0); + + clk_disable_unprepare(phy_dwc3->ref_clk); + clk_disable_unprepare(phy_dwc3->xo_clk); + + return 0; +} + +static const struct phy_drvdata qcom_ipq806x_usb_hs_drvdata = { + .ops = { + .init = qcom_ipq806x_usb_hs_phy_init, + .exit = qcom_ipq806x_usb_hs_phy_exit, + .owner = THIS_MODULE, + }, + .clk_rate = 60000000, +}; + +static const struct phy_drvdata qcom_ipq806x_usb_ss_drvdata = { + .ops = { + .init = qcom_ipq806x_usb_ss_phy_init, + .exit = qcom_ipq806x_usb_ss_phy_exit, + .owner = THIS_MODULE, + }, + .clk_rate = 125000000, +}; + +static const struct of_device_id qcom_ipq806x_usb_phy_table[] = { + { .compatible = "qcom,ipq806x-usb-phy-hs", + .data = &qcom_ipq806x_usb_hs_drvdata }, + { .compatible = "qcom,ipq806x-usb-phy-ss", + .data = &qcom_ipq806x_usb_ss_drvdata }, + { /* Sentinel */ } +}; +MODULE_DEVICE_TABLE(of, qcom_ipq806x_usb_phy_table); + +static int qcom_ipq806x_usb_phy_probe(struct platform_device *pdev) +{ + struct resource *res; + resource_size_t size; + struct phy *generic_phy; + struct usb_phy *phy_dwc3; + const struct phy_drvdata *data; + struct phy_provider *phy_provider; + + phy_dwc3 = devm_kzalloc(&pdev->dev, sizeof(*phy_dwc3), GFP_KERNEL); + if (!phy_dwc3) + return -ENOMEM; + + data = of_device_get_match_data(&pdev->dev); + + phy_dwc3->dev = &pdev->dev; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -EINVAL; + size = resource_size(res); + phy_dwc3->base = devm_ioremap(phy_dwc3->dev, res->start, size); + + if (IS_ERR(phy_dwc3->base)) { + dev_err(phy_dwc3->dev, "failed to map reg\n"); + return PTR_ERR(phy_dwc3->base); + } + + phy_dwc3->ref_clk = devm_clk_get(phy_dwc3->dev, "ref"); + if (IS_ERR(phy_dwc3->ref_clk)) { + dev_dbg(phy_dwc3->dev, "cannot get reference clock\n"); + return PTR_ERR(phy_dwc3->ref_clk); + } + + clk_set_rate(phy_dwc3->ref_clk, data->clk_rate); + + phy_dwc3->xo_clk = devm_clk_get(phy_dwc3->dev, "xo"); + if (IS_ERR(phy_dwc3->xo_clk)) { + dev_dbg(phy_dwc3->dev, "cannot get TCXO clock\n"); + phy_dwc3->xo_clk = NULL; + } + + /* Parse device node to probe HSIO settings */ + if (device_property_read_u32(&pdev->dev, "qcom,rx-eq", + &phy_dwc3->rx_eq)) + phy_dwc3->rx_eq = SSPHY_RX_EQ_VALUE; + + if (device_property_read_u32(&pdev->dev, "qcom,tx-deamp_3_5db", + &phy_dwc3->tx_deamp_3_5db)) + phy_dwc3->tx_deamp_3_5db = SSPHY_TX_DEEMPH_3_5DB; + + if (device_property_read_u32(&pdev->dev, "qcom,mpll", &phy_dwc3->mpll)) + phy_dwc3->mpll = SSPHY_MPLL_VALUE; + + generic_phy = devm_phy_create(phy_dwc3->dev, pdev->dev.of_node, &data->ops); + + if (IS_ERR(generic_phy)) + return PTR_ERR(generic_phy); + + phy_set_drvdata(generic_phy, phy_dwc3); + platform_set_drvdata(pdev, phy_dwc3); + + phy_provider = devm_of_phy_provider_register(phy_dwc3->dev, + of_phy_simple_xlate); + + if (IS_ERR(phy_provider)) + return PTR_ERR(phy_provider); + + return 0; +} + +static struct platform_driver qcom_ipq806x_usb_phy_driver = { + .probe = qcom_ipq806x_usb_phy_probe, + .driver = { + .name = "qcom-ipq806x-usb-phy", + .owner = THIS_MODULE, + .of_match_table = qcom_ipq806x_usb_phy_table, + }, +}; + +module_platform_driver(qcom_ipq806x_usb_phy_driver); + +MODULE_ALIAS("platform:phy-qcom-ipq806x-usb"); +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Andy Gross <agross@codeaurora.org>"); +MODULE_AUTHOR("Ivan T. Ivanov <iivanov@mm-sol.com>"); +MODULE_DESCRIPTION("DesignWare USB3 QCOM PHY driver"); diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c index e91040af3394..562053ce9455 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp.c @@ -82,20 +82,34 @@ struct qmp_phy_init_tbl { * register part of layout ? * if yes, then offset gives index in the reg-layout */ - int in_layout; + bool in_layout; + /* + * mask of lanes for which this register is written + * for cases when second lane needs different values + */ + u8 lane_mask; }; #define QMP_PHY_INIT_CFG(o, v) \ { \ .offset = o, \ .val = v, \ + .lane_mask = 0xff, \ } #define QMP_PHY_INIT_CFG_L(o, v) \ { \ .offset = o, \ .val = v, \ - .in_layout = 1, \ + .in_layout = true, \ + .lane_mask = 0xff, \ + } + +#define QMP_PHY_INIT_CFG_LANE(o, v, l) \ + { \ + .offset = o, \ + .val = v, \ + .lane_mask = l, \ } /* set of registers with offsets different per-PHY */ @@ -185,6 +199,17 @@ static const unsigned int qmp_v4_usb3phy_regs_layout[QPHY_LAYOUT_SIZE] = { [QPHY_START_CTRL] = 0x44, [QPHY_PCS_STATUS] = 0x14, [QPHY_PCS_POWER_DOWN_CONTROL] = 0x40, + [QPHY_PCS_AUTONOMOUS_MODE_CTRL] = 0x308, + [QPHY_PCS_LFPS_RXTERM_IRQ_CLEAR] = 0x314, +}; + +static const unsigned int qmp_v4_usb3_uniphy_regs_layout[QPHY_LAYOUT_SIZE] = { + [QPHY_SW_RESET] = 0x00, + [QPHY_START_CTRL] = 0x44, + [QPHY_PCS_STATUS] = 0x14, + [QPHY_PCS_POWER_DOWN_CONTROL] = 0x40, + [QPHY_PCS_AUTONOMOUS_MODE_CTRL] = 0x608, + [QPHY_PCS_LFPS_RXTERM_IRQ_CLEAR] = 0x614, }; static const unsigned int sdm845_ufsphy_regs_layout[QPHY_LAYOUT_SIZE] = { @@ -198,6 +223,81 @@ static const unsigned int sm8150_ufsphy_regs_layout[QPHY_LAYOUT_SIZE] = { [QPHY_SW_RESET] = QPHY_V4_PCS_UFS_SW_RESET, }; +static const struct qmp_phy_init_tbl ipq8074_usb3_serdes_tbl[] = { + QMP_PHY_INIT_CFG(QSERDES_COM_SYSCLK_EN_SEL, 0x1a), + QMP_PHY_INIT_CFG(QSERDES_COM_BIAS_EN_CLKBUFLR_EN, 0x08), + QMP_PHY_INIT_CFG(QSERDES_COM_CLK_SELECT, 0x30), + QMP_PHY_INIT_CFG(QSERDES_COM_BG_TRIM, 0x0f), + QMP_PHY_INIT_CFG(QSERDES_RX_UCDR_FASTLOCK_FO_GAIN, 0x0b), + QMP_PHY_INIT_CFG(QSERDES_COM_SVS_MODE_CLK_SEL, 0x01), + QMP_PHY_INIT_CFG(QSERDES_COM_HSCLK_SEL, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_CMN_CONFIG, 0x06), + QMP_PHY_INIT_CFG(QSERDES_COM_PLL_IVCO, 0x0f), + QMP_PHY_INIT_CFG(QSERDES_COM_SYS_CLK_CTRL, 0x06), + /* PLL and Loop filter settings */ + QMP_PHY_INIT_CFG(QSERDES_COM_DEC_START_MODE0, 0x82), + QMP_PHY_INIT_CFG(QSERDES_COM_DIV_FRAC_START1_MODE0, 0x55), + QMP_PHY_INIT_CFG(QSERDES_COM_DIV_FRAC_START2_MODE0, 0x55), + QMP_PHY_INIT_CFG(QSERDES_COM_DIV_FRAC_START3_MODE0, 0x03), + QMP_PHY_INIT_CFG(QSERDES_COM_CP_CTRL_MODE0, 0x0b), + QMP_PHY_INIT_CFG(QSERDES_COM_PLL_RCTRL_MODE0, 0x16), + QMP_PHY_INIT_CFG(QSERDES_COM_PLL_CCTRL_MODE0, 0x28), + QMP_PHY_INIT_CFG(QSERDES_COM_INTEGLOOP_GAIN0_MODE0, 0x80), + QMP_PHY_INIT_CFG(QSERDES_COM_LOCK_CMP1_MODE0, 0x15), + QMP_PHY_INIT_CFG(QSERDES_COM_LOCK_CMP2_MODE0, 0x34), + QMP_PHY_INIT_CFG(QSERDES_COM_LOCK_CMP3_MODE0, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_CORE_CLK_EN, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_LOCK_CMP_CFG, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_VCO_TUNE_MAP, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_BG_TIMER, 0x0a), + /* SSC settings */ + QMP_PHY_INIT_CFG(QSERDES_COM_SSC_EN_CENTER, 0x01), + QMP_PHY_INIT_CFG(QSERDES_COM_SSC_PER1, 0x31), + QMP_PHY_INIT_CFG(QSERDES_COM_SSC_PER2, 0x01), + QMP_PHY_INIT_CFG(QSERDES_COM_SSC_ADJ_PER1, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_SSC_ADJ_PER2, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_SSC_STEP_SIZE1, 0xde), + QMP_PHY_INIT_CFG(QSERDES_COM_SSC_STEP_SIZE2, 0x07), +}; + +static const struct qmp_phy_init_tbl ipq8074_usb3_rx_tbl[] = { + QMP_PHY_INIT_CFG(QSERDES_RX_UCDR_SO_GAIN, 0x06), + QMP_PHY_INIT_CFG(QSERDES_RX_RX_EQU_ADAPTOR_CNTRL2, 0x02), + QMP_PHY_INIT_CFG(QSERDES_RX_RX_EQU_ADAPTOR_CNTRL3, 0x4c), + QMP_PHY_INIT_CFG(QSERDES_RX_RX_EQU_ADAPTOR_CNTRL4, 0xb8), + QMP_PHY_INIT_CFG(QSERDES_RX_RX_EQ_OFFSET_ADAPTOR_CNTRL1, 0x77), + QMP_PHY_INIT_CFG(QSERDES_RX_RX_OFFSET_ADAPTOR_CNTRL2, 0x80), + QMP_PHY_INIT_CFG(QSERDES_RX_SIGDET_CNTRL, 0x03), + QMP_PHY_INIT_CFG(QSERDES_RX_SIGDET_DEGLITCH_CNTRL, 0x16), + QMP_PHY_INIT_CFG(QSERDES_RX_SIGDET_ENABLES, 0x0), +}; + +static const struct qmp_phy_init_tbl ipq8074_usb3_pcs_tbl[] = { + QMP_PHY_INIT_CFG(QPHY_V3_PCS_TXDEEMPH_M6DB_V0, 0x15), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_TXDEEMPH_M3P5DB_V0, 0x0e), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_FLL_CNTRL2, 0x83), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_FLL_CNTRL1, 0x02), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_FLL_CNT_VAL_L, 0x09), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_FLL_CNT_VAL_H_TOL, 0xa2), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_FLL_MAN_CODE, 0x85), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_LOCK_DETECT_CONFIG1, 0xd1), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_LOCK_DETECT_CONFIG2, 0x1f), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_LOCK_DETECT_CONFIG3, 0x47), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_POWER_STATE_CONFIG2, 0x1b), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_RXEQTRAINING_WAIT_TIME, 0x75), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_RXEQTRAINING_RUN_TIME, 0x13), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_LFPS_TX_ECSTART_EQTLOCK, 0x86), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_PWRUP_RESET_DLY_TIME_AUXCLK, 0x04), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_TSYNC_RSYNC_TIME, 0x44), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_RCVR_DTCT_DLY_P1U2_L, 0xe7), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_RCVR_DTCT_DLY_P1U2_H, 0x03), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_RCVR_DTCT_DLY_U3_L, 0x40), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_RCVR_DTCT_DLY_U3_H, 0x00), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_RX_SIGDET_LVL, 0x88), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_TXDEEMPH_M6DB_V0, 0x17), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_TXDEEMPH_M3P5DB_V0, 0x0f), +}; + static const struct qmp_phy_init_tbl msm8996_pcie_serdes_tbl[] = { QMP_PHY_INIT_CFG(QSERDES_COM_BIAS_EN_CLKBUFLR_EN, 0x1c), QMP_PHY_INIT_CFG(QSERDES_COM_CLK_ENABLE1, 0x10), @@ -1399,6 +1499,250 @@ static const struct qmp_phy_init_tbl sm8150_usb3_pcs_tbl[] = { QMP_PHY_INIT_CFG(QPHY_V4_PCS_USB3_RXEQTRAINING_DFE_TIME_S2, 0x07), }; +static const struct qmp_phy_init_tbl sm8150_usb3_uniphy_serdes_tbl[] = { + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SYSCLK_EN_SEL, 0x1a), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_HSCLK_SEL, 0x11), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_HSCLK_SEL, 0x01), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DEC_START_MODE0, 0x82), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START1_MODE0, 0xab), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START2_MODE0, 0xea), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START3_MODE0, 0x02), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE1_MODE0, 0xca), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE2_MODE0, 0x1e), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_CP_CTRL_MODE0, 0x06), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_RCTRL_MODE0, 0x16), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_CCTRL_MODE0, 0x36), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_VCO_TUNE1_MODE0, 0x24), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP2_MODE0, 0x34), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP1_MODE0, 0x14), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP_EN, 0x04), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SYSCLK_BUF_ENABLE, 0x0a), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_VCO_TUNE2_MODE1, 0x02), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_VCO_TUNE1_MODE1, 0x24), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_CORECLK_DIV_MODE1, 0x08), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DEC_START_MODE1, 0x82), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START1_MODE1, 0xab), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START2_MODE1, 0xea), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START3_MODE1, 0x02), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP2_MODE1, 0x82), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP1_MODE1, 0x34), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_CP_CTRL_MODE1, 0x06), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_RCTRL_MODE1, 0x16), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_CCTRL_MODE1, 0x36), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE1_MODE1, 0xca), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE2_MODE1, 0x1e), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_CMN_IPTRIM, 0x20), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SSC_EN_CENTER, 0x01), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SSC_PER1, 0x31), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SSC_PER2, 0x01), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SSC_STEP_SIZE1_MODE1, 0xde), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SSC_STEP_SIZE2_MODE1, 0x07), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SSC_STEP_SIZE1_MODE0, 0xde), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SSC_STEP_SIZE2_MODE0, 0x07), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_VCO_TUNE_MAP, 0x02), +}; + +static const struct qmp_phy_init_tbl sm8150_usb3_uniphy_tx_tbl[] = { + QMP_PHY_INIT_CFG(QSERDES_V4_TX_RCV_DETECT_LVL_2, 0x12), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_LANE_MODE_1, 0x95), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_PI_QEC_CTRL, 0x40), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_RES_CODE_LANE_OFFSET_TX, 0x05), +}; + +static const struct qmp_phy_init_tbl sm8150_usb3_uniphy_rx_tbl[] = { + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH4, 0xb8), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH3, 0x7f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH2, 0x37), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH, 0x2f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_LOW, 0xef), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH4, 0xb3), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH3, 0x0b), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH2, 0x5c), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH, 0xdc), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_LOW, 0xdc), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_PI_CONTROLS, 0x99), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SB2_THRESH1, 0x04), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SB2_THRESH2, 0x08), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SB2_GAIN1, 0x05), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SB2_GAIN2, 0x05), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FASTLOCK_FO_GAIN, 0x2f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FASTLOCK_COUNT_LOW, 0xff), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FASTLOCK_COUNT_HIGH, 0x0f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SO_SATURATION_AND_ENABLE, 0x7f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FO_GAIN, 0x08), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_VGA_CAL_CNTRL1, 0x54), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_VGA_CAL_CNTRL2, 0x0c), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_GM_CAL, 0x1f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL2, 0x0f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL3, 0x4a), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL4, 0x0a), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_DFE_EN_TIMER, 0x04), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQ_OFFSET_ADAPTOR_CNTRL1, 0x47), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_OFFSET_ADAPTOR_CNTRL2, 0x80), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_SIGDET_CNTRL, 0x04), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_SIGDET_DEGLITCH_CNTRL, 0x0e), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_IDAC_TSETTLE_HIGH, 0x00), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_IDAC_TSETTLE_LOW, 0xc0), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_DFE_CTLE_POST_CAL_OFFSET, 0x20), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SO_GAIN, 0x04), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_DCC_CTRL1, 0x0c), +}; + +static const struct qmp_phy_init_tbl sm8150_usb3_uniphy_pcs_tbl[] = { + QMP_PHY_INIT_CFG(QPHY_V4_PCS_LOCK_DETECT_CONFIG1, 0xd0), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_LOCK_DETECT_CONFIG2, 0x07), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_LOCK_DETECT_CONFIG3, 0x20), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_LOCK_DETECT_CONFIG6, 0x13), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_RCVR_DTCT_DLY_P1U2_L, 0xe7), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_RCVR_DTCT_DLY_P1U2_H, 0x03), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_RX_SIGDET_LVL, 0xaa), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_USB3_UNI_RXEQTRAINING_DFE_TIME_S2, 0x07), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_USB3_UNI_LFPS_DET_HIGH_COUNT_VAL, 0xf8), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_CDR_RESET_TIME, 0x0f), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_ALIGN_DETECT_CONFIG1, 0x88), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_ALIGN_DETECT_CONFIG2, 0x13), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_EQ_CONFIG1, 0x4b), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_EQ_CONFIG5, 0x10), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_REFGEN_REQ_CONFIG1, 0x21), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_PCS_TX_RX_CONFIG, 0x0c), +}; + +static const struct qmp_phy_init_tbl sm8250_usb3_tx_tbl[] = { + QMP_PHY_INIT_CFG(QSERDES_V4_TX_RES_CODE_LANE_TX, 0x60), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_RES_CODE_LANE_RX, 0x60), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_RES_CODE_LANE_OFFSET_TX, 0x11), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_RES_CODE_LANE_OFFSET_RX, 0x02), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_LANE_MODE_1, 0xd5), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_RCV_DETECT_LVL_2, 0x12), + QMP_PHY_INIT_CFG_LANE(QSERDES_V4_TX_PI_QEC_CTRL, 0x40, 1), + QMP_PHY_INIT_CFG_LANE(QSERDES_V4_TX_PI_QEC_CTRL, 0x54, 2), +}; + +static const struct qmp_phy_init_tbl sm8250_usb3_rx_tbl[] = { + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SO_GAIN, 0x06), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FASTLOCK_FO_GAIN, 0x2f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SO_SATURATION_AND_ENABLE, 0x7f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FASTLOCK_COUNT_LOW, 0xff), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FASTLOCK_COUNT_HIGH, 0x0f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_PI_CONTROLS, 0x99), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SB2_THRESH1, 0x04), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SB2_THRESH2, 0x08), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SB2_GAIN1, 0x05), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SB2_GAIN2, 0x05), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_VGA_CAL_CNTRL1, 0x54), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_VGA_CAL_CNTRL2, 0x0c), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL2, 0x0f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL3, 0x4a), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL4, 0x0a), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_IDAC_TSETTLE_LOW, 0xc0), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_IDAC_TSETTLE_HIGH, 0x00), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQ_OFFSET_ADAPTOR_CNTRL1, 0x77), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_SIGDET_CNTRL, 0x04), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_SIGDET_DEGLITCH_CNTRL, 0x0e), + QMP_PHY_INIT_CFG_LANE(QSERDES_V4_RX_RX_MODE_00_LOW, 0xff, 1), + QMP_PHY_INIT_CFG_LANE(QSERDES_V4_RX_RX_MODE_00_LOW, 0x7f, 2), + QMP_PHY_INIT_CFG_LANE(QSERDES_V4_RX_RX_MODE_00_HIGH, 0x7f, 1), + QMP_PHY_INIT_CFG_LANE(QSERDES_V4_RX_RX_MODE_00_HIGH, 0xff, 2), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH2, 0x7f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH3, 0x7f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH4, 0x97), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_LOW, 0xdc), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH, 0xdc), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH2, 0x5c), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH3, 0x7b), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH4, 0xb4), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_DFE_EN_TIMER, 0x04), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_DFE_CTLE_POST_CAL_OFFSET, 0x38), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_AUX_DATA_TCOARSE_TFINE, 0xa0), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_DCC_CTRL1, 0x0c), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_GM_CAL, 0x1f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_VTH_CODE, 0x10), +}; + +static const struct qmp_phy_init_tbl sm8250_usb3_pcs_tbl[] = { + QMP_PHY_INIT_CFG(QPHY_V4_PCS_LOCK_DETECT_CONFIG1, 0xd0), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_LOCK_DETECT_CONFIG2, 0x07), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_LOCK_DETECT_CONFIG3, 0x20), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_LOCK_DETECT_CONFIG6, 0x13), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_REFGEN_REQ_CONFIG1, 0x21), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_RX_SIGDET_LVL, 0xa9), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_CDR_RESET_TIME, 0x0a), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_ALIGN_DETECT_CONFIG1, 0x88), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_ALIGN_DETECT_CONFIG2, 0x13), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_PCS_TX_RX_CONFIG, 0x0c), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_EQ_CONFIG1, 0x4b), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_EQ_CONFIG5, 0x10), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_USB3_LFPS_DET_HIGH_COUNT_VAL, 0xf8), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_USB3_RXEQTRAINING_DFE_TIME_S2, 0x07), +}; + +static const struct qmp_phy_init_tbl sm8250_usb3_uniphy_tx_tbl[] = { + QMP_PHY_INIT_CFG(QSERDES_V4_TX_RCV_DETECT_LVL_2, 0x12), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_LANE_MODE_1, 0xd5), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_LANE_MODE_2, 0x82), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_PI_QEC_CTRL, 0x40), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_RES_CODE_LANE_OFFSET_TX, 0x11), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_RES_CODE_LANE_OFFSET_RX, 0x02), +}; + +static const struct qmp_phy_init_tbl sm8250_usb3_uniphy_rx_tbl[] = { + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH4, 0xb8), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH3, 0xff), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH2, 0xbf), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH, 0x7f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_LOW, 0x7f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH4, 0xb4), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH3, 0x7b), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH2, 0x5c), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH, 0xdc), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_LOW, 0xdc), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_PI_CONTROLS, 0x99), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SB2_THRESH1, 0x04), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SB2_THRESH2, 0x08), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SB2_GAIN1, 0x05), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SB2_GAIN2, 0x05), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FASTLOCK_FO_GAIN, 0x2f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FASTLOCK_COUNT_LOW, 0xff), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FASTLOCK_COUNT_HIGH, 0x0f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SO_SATURATION_AND_ENABLE, 0x7f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FO_GAIN, 0x0a), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_VGA_CAL_CNTRL1, 0x54), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_VGA_CAL_CNTRL2, 0x0c), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL2, 0x0f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL3, 0x4a), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL4, 0x0a), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_DFE_EN_TIMER, 0x04), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQ_OFFSET_ADAPTOR_CNTRL1, 0x47), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_OFFSET_ADAPTOR_CNTRL2, 0x80), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_SIGDET_CNTRL, 0x04), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_SIGDET_DEGLITCH_CNTRL, 0x0e), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_IDAC_TSETTLE_HIGH, 0x00), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_IDAC_TSETTLE_LOW, 0xc0), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_DFE_CTLE_POST_CAL_OFFSET, 0x38), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SO_GAIN, 0x06), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_DCC_CTRL1, 0x0c), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_GM_CAL, 0x1f), +}; + +static const struct qmp_phy_init_tbl sm8250_usb3_uniphy_pcs_tbl[] = { + QMP_PHY_INIT_CFG(QPHY_V4_PCS_LOCK_DETECT_CONFIG1, 0xd0), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_LOCK_DETECT_CONFIG2, 0x07), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_LOCK_DETECT_CONFIG3, 0x20), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_LOCK_DETECT_CONFIG6, 0x13), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_RCVR_DTCT_DLY_P1U2_L, 0xe7), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_RCVR_DTCT_DLY_P1U2_H, 0x03), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_RX_SIGDET_LVL, 0xa9), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_PCS_TX_RX_CONFIG, 0x0c), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_USB3_UNI_RXEQTRAINING_DFE_TIME_S2, 0x07), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_USB3_UNI_LFPS_DET_HIGH_COUNT_VAL, 0xf8), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_CDR_RESET_TIME, 0x0a), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_ALIGN_DETECT_CONFIG1, 0x88), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_ALIGN_DETECT_CONFIG2, 0x13), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_EQ_CONFIG1, 0x4b), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_EQ_CONFIG5, 0x10), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_REFGEN_REQ_CONFIG1, 0x21), +}; + /* struct qmp_phy_cfg - per-PHY initialization config */ struct qmp_phy_cfg { /* phy-type - PCIE/UFS/USB */ @@ -1567,6 +1911,11 @@ static const char * const qmp_v4_phy_clk_l[] = { "aux", "ref_clk_src", "ref", "com_aux", }; +/* the primary usb3 phy on sm8250 doesn't have a ref clock */ +static const char * const qmp_v4_sm8250_usbphy_clk_l[] = { + "aux", "ref_clk_src", "com_aux" +}; + static const char * const sdm845_ufs_phy_clk_l[] = { "ref", "ref_aux", }; @@ -1593,6 +1942,30 @@ static const char * const qmp_phy_vreg_l[] = { "vdda-phy", "vdda-pll", }; +static const struct qmp_phy_cfg ipq8074_usb3phy_cfg = { + .type = PHY_TYPE_USB3, + .nlanes = 1, + + .serdes_tbl = ipq8074_usb3_serdes_tbl, + .serdes_tbl_num = ARRAY_SIZE(ipq8074_usb3_serdes_tbl), + .tx_tbl = msm8996_usb3_tx_tbl, + .tx_tbl_num = ARRAY_SIZE(msm8996_usb3_tx_tbl), + .rx_tbl = ipq8074_usb3_rx_tbl, + .rx_tbl_num = ARRAY_SIZE(ipq8074_usb3_rx_tbl), + .pcs_tbl = ipq8074_usb3_pcs_tbl, + .pcs_tbl_num = ARRAY_SIZE(ipq8074_usb3_pcs_tbl), + .clk_list = msm8996_phy_clk_l, + .num_clks = ARRAY_SIZE(msm8996_phy_clk_l), + .reset_list = msm8996_usb3phy_reset_l, + .num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l), + .vreg_list = qmp_phy_vreg_l, + .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l), + .regs = usb3phy_regs_layout, + + .start_ctrl = SERDES_START | PCS_START, + .pwrdn_ctrl = SW_PWRDN, +}; + static const struct qmp_phy_cfg msm8996_pciephy_cfg = { .type = PHY_TYPE_PCIE, .nlanes = 3, @@ -1986,10 +2359,98 @@ static const struct qmp_phy_cfg sm8150_usb3phy_cfg = { .is_dual_lane_phy = true, }; -static void qcom_qmp_phy_configure(void __iomem *base, - const unsigned int *regs, - const struct qmp_phy_init_tbl tbl[], - int num) +static const struct qmp_phy_cfg sm8150_usb3_uniphy_cfg = { + .type = PHY_TYPE_USB3, + .nlanes = 1, + + .serdes_tbl = sm8150_usb3_uniphy_serdes_tbl, + .serdes_tbl_num = ARRAY_SIZE(sm8150_usb3_uniphy_serdes_tbl), + .tx_tbl = sm8150_usb3_uniphy_tx_tbl, + .tx_tbl_num = ARRAY_SIZE(sm8150_usb3_uniphy_tx_tbl), + .rx_tbl = sm8150_usb3_uniphy_rx_tbl, + .rx_tbl_num = ARRAY_SIZE(sm8150_usb3_uniphy_rx_tbl), + .pcs_tbl = sm8150_usb3_uniphy_pcs_tbl, + .pcs_tbl_num = ARRAY_SIZE(sm8150_usb3_uniphy_pcs_tbl), + .clk_list = qmp_v4_phy_clk_l, + .num_clks = ARRAY_SIZE(qmp_v4_phy_clk_l), + .reset_list = msm8996_usb3phy_reset_l, + .num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l), + .vreg_list = qmp_phy_vreg_l, + .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l), + .regs = qmp_v4_usb3_uniphy_regs_layout, + + .start_ctrl = SERDES_START | PCS_START, + .pwrdn_ctrl = SW_PWRDN, + + .has_pwrdn_delay = true, + .pwrdn_delay_min = POWER_DOWN_DELAY_US_MIN, + .pwrdn_delay_max = POWER_DOWN_DELAY_US_MAX, +}; + +static const struct qmp_phy_cfg sm8250_usb3phy_cfg = { + .type = PHY_TYPE_USB3, + .nlanes = 1, + + .serdes_tbl = sm8150_usb3_serdes_tbl, + .serdes_tbl_num = ARRAY_SIZE(sm8150_usb3_serdes_tbl), + .tx_tbl = sm8250_usb3_tx_tbl, + .tx_tbl_num = ARRAY_SIZE(sm8250_usb3_tx_tbl), + .rx_tbl = sm8250_usb3_rx_tbl, + .rx_tbl_num = ARRAY_SIZE(sm8250_usb3_rx_tbl), + .pcs_tbl = sm8250_usb3_pcs_tbl, + .pcs_tbl_num = ARRAY_SIZE(sm8250_usb3_pcs_tbl), + .clk_list = qmp_v4_sm8250_usbphy_clk_l, + .num_clks = ARRAY_SIZE(qmp_v4_sm8250_usbphy_clk_l), + .reset_list = msm8996_usb3phy_reset_l, + .num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l), + .vreg_list = qmp_phy_vreg_l, + .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l), + .regs = qmp_v4_usb3phy_regs_layout, + + .start_ctrl = SERDES_START | PCS_START, + .pwrdn_ctrl = SW_PWRDN, + + .has_pwrdn_delay = true, + .pwrdn_delay_min = POWER_DOWN_DELAY_US_MIN, + .pwrdn_delay_max = POWER_DOWN_DELAY_US_MAX, + + .has_phy_dp_com_ctrl = true, + .is_dual_lane_phy = true, +}; + +static const struct qmp_phy_cfg sm8250_usb3_uniphy_cfg = { + .type = PHY_TYPE_USB3, + .nlanes = 1, + + .serdes_tbl = sm8150_usb3_uniphy_serdes_tbl, + .serdes_tbl_num = ARRAY_SIZE(sm8150_usb3_uniphy_serdes_tbl), + .tx_tbl = sm8250_usb3_uniphy_tx_tbl, + .tx_tbl_num = ARRAY_SIZE(sm8250_usb3_uniphy_tx_tbl), + .rx_tbl = sm8250_usb3_uniphy_rx_tbl, + .rx_tbl_num = ARRAY_SIZE(sm8250_usb3_uniphy_rx_tbl), + .pcs_tbl = sm8250_usb3_uniphy_pcs_tbl, + .pcs_tbl_num = ARRAY_SIZE(sm8250_usb3_uniphy_pcs_tbl), + .clk_list = qmp_v4_phy_clk_l, + .num_clks = ARRAY_SIZE(qmp_v4_phy_clk_l), + .reset_list = msm8996_usb3phy_reset_l, + .num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l), + .vreg_list = qmp_phy_vreg_l, + .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l), + .regs = qmp_v4_usb3_uniphy_regs_layout, + + .start_ctrl = SERDES_START | PCS_START, + .pwrdn_ctrl = SW_PWRDN, + + .has_pwrdn_delay = true, + .pwrdn_delay_min = POWER_DOWN_DELAY_US_MIN, + .pwrdn_delay_max = POWER_DOWN_DELAY_US_MAX, +}; + +static void qcom_qmp_phy_configure_lane(void __iomem *base, + const unsigned int *regs, + const struct qmp_phy_init_tbl tbl[], + int num, + u8 lane_mask) { int i; const struct qmp_phy_init_tbl *t = tbl; @@ -1998,6 +2459,9 @@ static void qcom_qmp_phy_configure(void __iomem *base, return; for (i = 0; i < num; i++, t++) { + if (!(t->lane_mask & lane_mask)) + continue; + if (t->in_layout) writel(t->val, base + regs[t->offset]); else @@ -2005,6 +2469,14 @@ static void qcom_qmp_phy_configure(void __iomem *base, } } +static void qcom_qmp_phy_configure(void __iomem *base, + const unsigned int *regs, + const struct qmp_phy_init_tbl tbl[], + int num) +{ + qcom_qmp_phy_configure_lane(base, regs, tbl, num, 0xff); +} + static int qcom_qmp_phy_com_init(struct qmp_phy *qphy) { struct qcom_qmp *qmp = qphy->qmp; @@ -2219,16 +2691,18 @@ static int qcom_qmp_phy_enable(struct phy *phy) } /* Tx, Rx, and PCS configurations */ - qcom_qmp_phy_configure(tx, cfg->regs, cfg->tx_tbl, cfg->tx_tbl_num); + qcom_qmp_phy_configure_lane(tx, cfg->regs, + cfg->tx_tbl, cfg->tx_tbl_num, 1); /* Configuration for other LANE for USB-DP combo PHY */ if (cfg->is_dual_lane_phy) - qcom_qmp_phy_configure(qphy->tx2, cfg->regs, - cfg->tx_tbl, cfg->tx_tbl_num); + qcom_qmp_phy_configure_lane(qphy->tx2, cfg->regs, + cfg->tx_tbl, cfg->tx_tbl_num, 2); - qcom_qmp_phy_configure(rx, cfg->regs, cfg->rx_tbl, cfg->rx_tbl_num); + qcom_qmp_phy_configure_lane(rx, cfg->regs, + cfg->rx_tbl, cfg->rx_tbl_num, 1); if (cfg->is_dual_lane_phy) - qcom_qmp_phy_configure(qphy->rx2, cfg->regs, - cfg->rx_tbl, cfg->rx_tbl_num); + qcom_qmp_phy_configure_lane(qphy->rx2, cfg->regs, + cfg->rx_tbl, cfg->rx_tbl_num, 2); qcom_qmp_phy_configure(pcs, cfg->regs, cfg->pcs_tbl, cfg->pcs_tbl_num); ret = reset_control_deassert(qmp->ufs_reset); @@ -2699,6 +3173,9 @@ int qcom_qmp_phy_create(struct device *dev, struct device_node *np, int id) static const struct of_device_id qcom_qmp_phy_of_match_table[] = { { + .compatible = "qcom,ipq8074-qmp-usb3-phy", + .data = &ipq8074_usb3phy_cfg, + }, { .compatible = "qcom,msm8996-qmp-pcie-phy", .data = &msm8996_pciephy_cfg, }, { @@ -2746,6 +3223,15 @@ static const struct of_device_id qcom_qmp_phy_of_match_table[] = { }, { .compatible = "qcom,sm8150-qmp-usb3-phy", .data = &sm8150_usb3phy_cfg, + }, { + .compatible = "qcom,sm8150-qmp-usb3-uni-phy", + .data = &sm8150_usb3_uniphy_cfg, + }, { + .compatible = "qcom,sm8250-qmp-usb3-phy", + .data = &sm8250_usb3phy_cfg, + }, { + .compatible = "qcom,sm8250-qmp-usb3-uni-phy", + .data = &sm8250_usb3_uniphy_cfg, }, { }, }; diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.h b/drivers/phy/qualcomm/phy-qcom-qmp.h index 6d017a0c0c8d..4277f592684b 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp.h +++ b/drivers/phy/qualcomm/phy-qcom-qmp.h @@ -363,7 +363,10 @@ /* Only for QMP V4 PHY - TX registers */ #define QSERDES_V4_TX_RES_CODE_LANE_TX 0x34 #define QSERDES_V4_TX_RES_CODE_LANE_RX 0x38 +#define QSERDES_V4_TX_RES_CODE_LANE_OFFSET_TX 0x3c +#define QSERDES_V4_TX_RES_CODE_LANE_OFFSET_RX 0x40 #define QSERDES_V4_TX_LANE_MODE_1 0x84 +#define QSERDES_V4_TX_LANE_MODE_2 0x88 #define QSERDES_V4_TX_RCV_DETECT_LVL_2 0x9c #define QSERDES_V4_TX_PWM_GEAR_1_DIVIDER_BAND0_1 0xd8 #define QSERDES_V4_TX_PWM_GEAR_2_DIVIDER_BAND0_1 0xdC @@ -709,6 +712,10 @@ #define QPHY_V4_PCS_USB3_SIGDET_STARTUP_TIMER_VAL 0x354 #define QPHY_V4_PCS_USB3_TEST_CONTROL 0x358 +/* Only for QMP V4 PHY - UNI has 0x300 offset for PCS_USB3 regs */ +#define QPHY_V4_PCS_USB3_UNI_LFPS_DET_HIGH_COUNT_VAL 0x618 +#define QPHY_V4_PCS_USB3_UNI_RXEQTRAINING_DFE_TIME_S2 0x638 + /* Only for QMP V4 PHY - PCS_MISC registers */ #define QPHY_V4_PCS_MISC_TYPEC_CTRL 0x00 #define QPHY_V4_PCS_MISC_TYPEC_PWRDN_CTRL 0x04 diff --git a/drivers/phy/qualcomm/phy-qcom-qusb2.c b/drivers/phy/qualcomm/phy-qcom-qusb2.c index 393011a05b48..557547dabfd5 100644 --- a/drivers/phy/qualcomm/phy-qcom-qusb2.c +++ b/drivers/phy/qualcomm/phy-qcom-qusb2.c @@ -810,6 +810,9 @@ static const struct phy_ops qusb2_phy_gen_ops = { static const struct of_device_id qusb2_phy_of_match_table[] = { { + .compatible = "qcom,ipq8074-qusb2-phy", + .data = &msm8996_phy_cfg, + }, { .compatible = "qcom,msm8996-qusb2-phy", .data = &msm8996_phy_cfg, }, { diff --git a/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c b/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c index 4d74045271eb..ae4bac024c7b 100644 --- a/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c +++ b/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c @@ -77,6 +77,7 @@ static const char * const qcom_snps_hsphy_vreg_names[] = { * @phy_reset: phy reset control * @vregs: regulator supplies bulk data * @phy_initialized: if PHY has been initialized correctly + * @mode: contains the current mode the PHY is in */ struct qcom_snps_hsphy { struct phy *phy; @@ -88,6 +89,7 @@ struct qcom_snps_hsphy { struct regulator_bulk_data vregs[SNPS_HS_NUM_VREGS]; bool phy_initialized; + enum phy_mode mode; }; static inline void qcom_snps_hsphy_write_mask(void __iomem *base, u32 offset, @@ -104,6 +106,72 @@ static inline void qcom_snps_hsphy_write_mask(void __iomem *base, u32 offset, readl_relaxed(base + offset); } +static int qcom_snps_hsphy_suspend(struct qcom_snps_hsphy *hsphy) +{ + dev_dbg(&hsphy->phy->dev, "Suspend QCOM SNPS PHY\n"); + + if (hsphy->mode == PHY_MODE_USB_HOST) { + /* Enable auto-resume to meet remote wakeup timing */ + qcom_snps_hsphy_write_mask(hsphy->base, + USB2_PHY_USB_PHY_HS_PHY_CTRL2, + USB2_AUTO_RESUME, + USB2_AUTO_RESUME); + usleep_range(500, 1000); + qcom_snps_hsphy_write_mask(hsphy->base, + USB2_PHY_USB_PHY_HS_PHY_CTRL2, + 0, USB2_AUTO_RESUME); + } + + clk_disable_unprepare(hsphy->cfg_ahb_clk); + return 0; +} + +static int qcom_snps_hsphy_resume(struct qcom_snps_hsphy *hsphy) +{ + int ret; + + dev_dbg(&hsphy->phy->dev, "Resume QCOM SNPS PHY, mode\n"); + + ret = clk_prepare_enable(hsphy->cfg_ahb_clk); + if (ret) { + dev_err(&hsphy->phy->dev, "failed to enable cfg ahb clock\n"); + return ret; + } + + return 0; +} + +static int __maybe_unused qcom_snps_hsphy_runtime_suspend(struct device *dev) +{ + struct qcom_snps_hsphy *hsphy = dev_get_drvdata(dev); + + if (!hsphy->phy_initialized) + return 0; + + qcom_snps_hsphy_suspend(hsphy); + return 0; +} + +static int __maybe_unused qcom_snps_hsphy_runtime_resume(struct device *dev) +{ + struct qcom_snps_hsphy *hsphy = dev_get_drvdata(dev); + + if (!hsphy->phy_initialized) + return 0; + + qcom_snps_hsphy_resume(hsphy); + return 0; +} + +static int qcom_snps_hsphy_set_mode(struct phy *phy, enum phy_mode mode, + int submode) +{ + struct qcom_snps_hsphy *hsphy = phy_get_drvdata(phy); + + hsphy->mode = mode; + return 0; +} + static int qcom_snps_hsphy_init(struct phy *phy) { struct qcom_snps_hsphy *hsphy = phy_get_drvdata(phy); @@ -201,6 +269,7 @@ static int qcom_snps_hsphy_exit(struct phy *phy) static const struct phy_ops qcom_snps_hsphy_gen_ops = { .init = qcom_snps_hsphy_init, .exit = qcom_snps_hsphy_exit, + .set_mode = qcom_snps_hsphy_set_mode, .owner = THIS_MODULE, }; @@ -212,6 +281,11 @@ static const struct of_device_id qcom_snps_hsphy_of_match_table[] = { }; MODULE_DEVICE_TABLE(of, qcom_snps_hsphy_of_match_table); +static const struct dev_pm_ops qcom_snps_hsphy_pm_ops = { + SET_RUNTIME_PM_OPS(qcom_snps_hsphy_runtime_suspend, + qcom_snps_hsphy_runtime_resume, NULL) +}; + static int qcom_snps_hsphy_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -255,6 +329,14 @@ static int qcom_snps_hsphy_probe(struct platform_device *pdev) return ret; } + pm_runtime_set_active(dev); + pm_runtime_enable(dev); + /* + * Prevent runtime pm from being ON by default. Users can enable + * it using power/control in sysfs. + */ + pm_runtime_forbid(dev); + generic_phy = devm_phy_create(dev, NULL, &qcom_snps_hsphy_gen_ops); if (IS_ERR(generic_phy)) { ret = PTR_ERR(generic_phy); @@ -269,6 +351,8 @@ static int qcom_snps_hsphy_probe(struct platform_device *pdev) phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); if (!IS_ERR(phy_provider)) dev_dbg(dev, "Registered Qcom-SNPS HS phy\n"); + else + pm_runtime_disable(dev); return PTR_ERR_OR_ZERO(phy_provider); } @@ -277,6 +361,7 @@ static struct platform_driver qcom_snps_hsphy_driver = { .probe = qcom_snps_hsphy_probe, .driver = { .name = "qcom-snps-hs-femto-v2-phy", + .pm = &qcom_snps_hsphy_pm_ops, .of_match_table = qcom_snps_hsphy_of_match_table, }, }; diff --git a/drivers/phy/qualcomm/phy-qcom-ufs-i.h b/drivers/phy/qualcomm/phy-qcom-ufs-i.h deleted file mode 100644 index 9bf973a0d8c3..000000000000 --- a/drivers/phy/qualcomm/phy-qcom-ufs-i.h +++ /dev/null @@ -1,131 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Copyright (c) 2013-2015, Linux Foundation. All rights reserved. - */ - -#ifndef UFS_QCOM_PHY_I_H_ -#define UFS_QCOM_PHY_I_H_ - -#include <linux/module.h> -#include <linux/clk.h> -#include <linux/phy/phy.h> -#include <linux/regulator/consumer.h> -#include <linux/reset.h> -#include <linux/slab.h> -#include <linux/platform_device.h> -#include <linux/io.h> -#include <linux/delay.h> -#include <linux/iopoll.h> - -#define UFS_QCOM_PHY_CAL_ENTRY(reg, val) \ - { \ - .reg_offset = reg, \ - .cfg_value = val, \ - } - -#define UFS_QCOM_PHY_NAME_LEN 30 - -enum { - MASK_SERDES_START = 0x1, - MASK_PCS_READY = 0x1, -}; - -enum { - OFFSET_SERDES_START = 0x0, -}; - -struct ufs_qcom_phy_stored_attributes { - u32 att; - u32 value; -}; - - -struct ufs_qcom_phy_calibration { - u32 reg_offset; - u32 cfg_value; -}; - -struct ufs_qcom_phy_vreg { - const char *name; - struct regulator *reg; - int max_uA; - int min_uV; - int max_uV; - bool enabled; -}; - -struct ufs_qcom_phy { - struct list_head list; - struct device *dev; - void __iomem *mmio; - void __iomem *dev_ref_clk_ctrl_mmio; - struct clk *tx_iface_clk; - struct clk *rx_iface_clk; - bool is_iface_clk_enabled; - struct clk *ref_clk_src; - struct clk *ref_clk_parent; - struct clk *ref_clk; - bool is_ref_clk_enabled; - bool is_dev_ref_clk_enabled; - struct ufs_qcom_phy_vreg vdda_pll; - struct ufs_qcom_phy_vreg vdda_phy; - struct ufs_qcom_phy_vreg vddp_ref_clk; - unsigned int quirks; - - /* - * If UFS link is put into Hibern8 and if UFS PHY analog hardware is - * power collapsed (by clearing UFS_PHY_POWER_DOWN_CONTROL), Hibern8 - * exit might fail even after powering on UFS PHY analog hardware. - * Enabling this quirk will help to solve above issue by doing - * custom PHY settings just before PHY analog power collapse. - */ - #define UFS_QCOM_PHY_QUIRK_HIBERN8_EXIT_AFTER_PHY_PWR_COLLAPSE BIT(0) - - u8 host_ctrl_rev_major; - u16 host_ctrl_rev_minor; - u16 host_ctrl_rev_step; - - char name[UFS_QCOM_PHY_NAME_LEN]; - struct ufs_qcom_phy_calibration *cached_regs; - int cached_regs_table_size; - struct ufs_qcom_phy_specific_ops *phy_spec_ops; - - enum phy_mode mode; - struct reset_control *ufs_reset; -}; - -/** - * struct ufs_qcom_phy_specific_ops - set of pointers to functions which have a - * specific implementation per phy. Each UFS phy, should implement - * those functions according to its spec and requirements - * @start_serdes: pointer to a function that starts the serdes - * @is_physical_coding_sublayer_ready: pointer to a function that - * checks pcs readiness. returns 0 for success and non-zero for error. - * @set_tx_lane_enable: pointer to a function that enable tx lanes - * @power_control: pointer to a function that controls analog rail of phy - * and writes to QSERDES_RX_SIGDET_CNTRL attribute - */ -struct ufs_qcom_phy_specific_ops { - int (*calibrate)(struct ufs_qcom_phy *ufs_qcom_phy, bool is_rate_B); - void (*start_serdes)(struct ufs_qcom_phy *phy); - int (*is_physical_coding_sublayer_ready)(struct ufs_qcom_phy *phy); - void (*set_tx_lane_enable)(struct ufs_qcom_phy *phy, u32 val); - void (*power_control)(struct ufs_qcom_phy *phy, bool val); -}; - -struct ufs_qcom_phy *get_ufs_qcom_phy(struct phy *generic_phy); -int ufs_qcom_phy_power_on(struct phy *generic_phy); -int ufs_qcom_phy_power_off(struct phy *generic_phy); -int ufs_qcom_phy_init_clks(struct ufs_qcom_phy *phy_common); -int ufs_qcom_phy_init_vregulators(struct ufs_qcom_phy *phy_common); -int ufs_qcom_phy_remove(struct phy *generic_phy, - struct ufs_qcom_phy *ufs_qcom_phy); -struct phy *ufs_qcom_phy_generic_probe(struct platform_device *pdev, - struct ufs_qcom_phy *common_cfg, - const struct phy_ops *ufs_qcom_phy_gen_ops, - struct ufs_qcom_phy_specific_ops *phy_spec_ops); -int ufs_qcom_phy_calibrate(struct ufs_qcom_phy *ufs_qcom_phy, - struct ufs_qcom_phy_calibration *tbl_A, int tbl_size_A, - struct ufs_qcom_phy_calibration *tbl_B, int tbl_size_B, - bool is_rate_B); -#endif diff --git a/drivers/phy/qualcomm/phy-qcom-ufs-qmp-14nm.c b/drivers/phy/qualcomm/phy-qcom-ufs-qmp-14nm.c deleted file mode 100644 index 54b355bfc24c..000000000000 --- a/drivers/phy/qualcomm/phy-qcom-ufs-qmp-14nm.c +++ /dev/null @@ -1,172 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (c) 2013-2015, Linux Foundation. All rights reserved. - */ - -#include "phy-qcom-ufs-qmp-14nm.h" - -#define UFS_PHY_NAME "ufs_phy_qmp_14nm" -#define UFS_PHY_VDDA_PHY_UV (925000) - -static -int ufs_qcom_phy_qmp_14nm_phy_calibrate(struct ufs_qcom_phy *ufs_qcom_phy, - bool is_rate_B) -{ - int tbl_size_A = ARRAY_SIZE(phy_cal_table_rate_A); - int tbl_size_B = ARRAY_SIZE(phy_cal_table_rate_B); - int err; - - err = ufs_qcom_phy_calibrate(ufs_qcom_phy, phy_cal_table_rate_A, - tbl_size_A, phy_cal_table_rate_B, tbl_size_B, is_rate_B); - - if (err) - dev_err(ufs_qcom_phy->dev, - "%s: ufs_qcom_phy_calibrate() failed %d\n", - __func__, err); - return err; -} - -static -void ufs_qcom_phy_qmp_14nm_advertise_quirks(struct ufs_qcom_phy *phy_common) -{ - phy_common->quirks = - UFS_QCOM_PHY_QUIRK_HIBERN8_EXIT_AFTER_PHY_PWR_COLLAPSE; -} - -static -int ufs_qcom_phy_qmp_14nm_set_mode(struct phy *generic_phy, - enum phy_mode mode, int submode) -{ - struct ufs_qcom_phy *phy_common = get_ufs_qcom_phy(generic_phy); - - phy_common->mode = PHY_MODE_INVALID; - - if (mode > 0) - phy_common->mode = mode; - - return 0; -} - -static -void ufs_qcom_phy_qmp_14nm_power_control(struct ufs_qcom_phy *phy, bool val) -{ - writel_relaxed(val ? 0x1 : 0x0, phy->mmio + UFS_PHY_POWER_DOWN_CONTROL); - /* - * Before any transactions involving PHY, ensure PHY knows - * that it's analog rail is powered ON (or OFF). - */ - mb(); -} - -static inline -void ufs_qcom_phy_qmp_14nm_set_tx_lane_enable(struct ufs_qcom_phy *phy, u32 val) -{ - /* - * 14nm PHY does not have TX_LANE_ENABLE register. - * Implement this function so as not to propagate error to caller. - */ -} - -static inline void ufs_qcom_phy_qmp_14nm_start_serdes(struct ufs_qcom_phy *phy) -{ - u32 tmp; - - tmp = readl_relaxed(phy->mmio + UFS_PHY_PHY_START); - tmp &= ~MASK_SERDES_START; - tmp |= (1 << OFFSET_SERDES_START); - writel_relaxed(tmp, phy->mmio + UFS_PHY_PHY_START); - /* Ensure register value is committed */ - mb(); -} - -static int ufs_qcom_phy_qmp_14nm_is_pcs_ready(struct ufs_qcom_phy *phy_common) -{ - int err = 0; - u32 val; - - err = readl_poll_timeout(phy_common->mmio + UFS_PHY_PCS_READY_STATUS, - val, (val & MASK_PCS_READY), 10, 1000000); - if (err) - dev_err(phy_common->dev, "%s: poll for pcs failed err = %d\n", - __func__, err); - return err; -} - -static const struct phy_ops ufs_qcom_phy_qmp_14nm_phy_ops = { - .power_on = ufs_qcom_phy_power_on, - .power_off = ufs_qcom_phy_power_off, - .set_mode = ufs_qcom_phy_qmp_14nm_set_mode, - .owner = THIS_MODULE, -}; - -static struct ufs_qcom_phy_specific_ops phy_14nm_ops = { - .calibrate = ufs_qcom_phy_qmp_14nm_phy_calibrate, - .start_serdes = ufs_qcom_phy_qmp_14nm_start_serdes, - .is_physical_coding_sublayer_ready = ufs_qcom_phy_qmp_14nm_is_pcs_ready, - .set_tx_lane_enable = ufs_qcom_phy_qmp_14nm_set_tx_lane_enable, - .power_control = ufs_qcom_phy_qmp_14nm_power_control, -}; - -static int ufs_qcom_phy_qmp_14nm_probe(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct phy *generic_phy; - struct ufs_qcom_phy_qmp_14nm *phy; - struct ufs_qcom_phy *phy_common; - int err = 0; - - phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL); - if (!phy) { - err = -ENOMEM; - goto out; - } - phy_common = &phy->common_cfg; - - generic_phy = ufs_qcom_phy_generic_probe(pdev, phy_common, - &ufs_qcom_phy_qmp_14nm_phy_ops, &phy_14nm_ops); - - if (!generic_phy) { - err = -EIO; - goto out; - } - - err = ufs_qcom_phy_init_clks(phy_common); - if (err) - goto out; - - err = ufs_qcom_phy_init_vregulators(phy_common); - if (err) - goto out; - - phy_common->vdda_phy.max_uV = UFS_PHY_VDDA_PHY_UV; - phy_common->vdda_phy.min_uV = UFS_PHY_VDDA_PHY_UV; - - ufs_qcom_phy_qmp_14nm_advertise_quirks(phy_common); - - phy_set_drvdata(generic_phy, phy); - - strlcpy(phy_common->name, UFS_PHY_NAME, sizeof(phy_common->name)); - -out: - return err; -} - -static const struct of_device_id ufs_qcom_phy_qmp_14nm_of_match[] = { - {.compatible = "qcom,ufs-phy-qmp-14nm"}, - {.compatible = "qcom,msm8996-ufs-phy-qmp-14nm"}, - {}, -}; -MODULE_DEVICE_TABLE(of, ufs_qcom_phy_qmp_14nm_of_match); - -static struct platform_driver ufs_qcom_phy_qmp_14nm_driver = { - .probe = ufs_qcom_phy_qmp_14nm_probe, - .driver = { - .of_match_table = ufs_qcom_phy_qmp_14nm_of_match, - .name = "ufs_qcom_phy_qmp_14nm", - }, -}; - -module_platform_driver(ufs_qcom_phy_qmp_14nm_driver); - -MODULE_DESCRIPTION("Universal Flash Storage (UFS) QCOM PHY QMP 14nm"); -MODULE_LICENSE("GPL v2"); diff --git a/drivers/phy/qualcomm/phy-qcom-ufs-qmp-14nm.h b/drivers/phy/qualcomm/phy-qcom-ufs-qmp-14nm.h deleted file mode 100644 index ceca654b9338..000000000000 --- a/drivers/phy/qualcomm/phy-qcom-ufs-qmp-14nm.h +++ /dev/null @@ -1,168 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Copyright (c) 2013-2015, Linux Foundation. All rights reserved. - */ - -#ifndef UFS_QCOM_PHY_QMP_14NM_H_ -#define UFS_QCOM_PHY_QMP_14NM_H_ - -#include "phy-qcom-ufs-i.h" - -/* QCOM UFS PHY control registers */ -#define COM_OFF(x) (0x000 + x) -#define PHY_OFF(x) (0xC00 + x) -#define TX_OFF(n, x) (0x400 + (0x400 * n) + x) -#define RX_OFF(n, x) (0x600 + (0x400 * n) + x) - -/* UFS PHY QSERDES COM registers */ -#define QSERDES_COM_BG_TIMER COM_OFF(0x0C) -#define QSERDES_COM_BIAS_EN_CLKBUFLR_EN COM_OFF(0x34) -#define QSERDES_COM_SYS_CLK_CTRL COM_OFF(0x3C) -#define QSERDES_COM_LOCK_CMP1_MODE0 COM_OFF(0x4C) -#define QSERDES_COM_LOCK_CMP2_MODE0 COM_OFF(0x50) -#define QSERDES_COM_LOCK_CMP3_MODE0 COM_OFF(0x54) -#define QSERDES_COM_LOCK_CMP1_MODE1 COM_OFF(0x58) -#define QSERDES_COM_LOCK_CMP2_MODE1 COM_OFF(0x5C) -#define QSERDES_COM_LOCK_CMP3_MODE1 COM_OFF(0x60) -#define QSERDES_COM_CP_CTRL_MODE0 COM_OFF(0x78) -#define QSERDES_COM_CP_CTRL_MODE1 COM_OFF(0x7C) -#define QSERDES_COM_PLL_RCTRL_MODE0 COM_OFF(0x84) -#define QSERDES_COM_PLL_RCTRL_MODE1 COM_OFF(0x88) -#define QSERDES_COM_PLL_CCTRL_MODE0 COM_OFF(0x90) -#define QSERDES_COM_PLL_CCTRL_MODE1 COM_OFF(0x94) -#define QSERDES_COM_SYSCLK_EN_SEL COM_OFF(0xAC) -#define QSERDES_COM_RESETSM_CNTRL COM_OFF(0xB4) -#define QSERDES_COM_LOCK_CMP_EN COM_OFF(0xC8) -#define QSERDES_COM_LOCK_CMP_CFG COM_OFF(0xCC) -#define QSERDES_COM_DEC_START_MODE0 COM_OFF(0xD0) -#define QSERDES_COM_DEC_START_MODE1 COM_OFF(0xD4) -#define QSERDES_COM_DIV_FRAC_START1_MODE0 COM_OFF(0xDC) -#define QSERDES_COM_DIV_FRAC_START2_MODE0 COM_OFF(0xE0) -#define QSERDES_COM_DIV_FRAC_START3_MODE0 COM_OFF(0xE4) -#define QSERDES_COM_DIV_FRAC_START1_MODE1 COM_OFF(0xE8) -#define QSERDES_COM_DIV_FRAC_START2_MODE1 COM_OFF(0xEC) -#define QSERDES_COM_DIV_FRAC_START3_MODE1 COM_OFF(0xF0) -#define QSERDES_COM_INTEGLOOP_GAIN0_MODE0 COM_OFF(0x108) -#define QSERDES_COM_INTEGLOOP_GAIN1_MODE0 COM_OFF(0x10C) -#define QSERDES_COM_INTEGLOOP_GAIN0_MODE1 COM_OFF(0x110) -#define QSERDES_COM_INTEGLOOP_GAIN1_MODE1 COM_OFF(0x114) -#define QSERDES_COM_VCO_TUNE_CTRL COM_OFF(0x124) -#define QSERDES_COM_VCO_TUNE_MAP COM_OFF(0x128) -#define QSERDES_COM_VCO_TUNE1_MODE0 COM_OFF(0x12C) -#define QSERDES_COM_VCO_TUNE2_MODE0 COM_OFF(0x130) -#define QSERDES_COM_VCO_TUNE1_MODE1 COM_OFF(0x134) -#define QSERDES_COM_VCO_TUNE2_MODE1 COM_OFF(0x138) -#define QSERDES_COM_VCO_TUNE_TIMER1 COM_OFF(0x144) -#define QSERDES_COM_VCO_TUNE_TIMER2 COM_OFF(0x148) -#define QSERDES_COM_CLK_SELECT COM_OFF(0x174) -#define QSERDES_COM_HSCLK_SEL COM_OFF(0x178) -#define QSERDES_COM_CORECLK_DIV COM_OFF(0x184) -#define QSERDES_COM_CORE_CLK_EN COM_OFF(0x18C) -#define QSERDES_COM_CMN_CONFIG COM_OFF(0x194) -#define QSERDES_COM_SVS_MODE_CLK_SEL COM_OFF(0x19C) -#define QSERDES_COM_CORECLK_DIV_MODE1 COM_OFF(0x1BC) - -/* UFS PHY registers */ -#define UFS_PHY_PHY_START PHY_OFF(0x00) -#define UFS_PHY_POWER_DOWN_CONTROL PHY_OFF(0x04) -#define UFS_PHY_PCS_READY_STATUS PHY_OFF(0x168) - -/* UFS PHY TX registers */ -#define QSERDES_TX_HIGHZ_TRANSCEIVER_BIAS_DRVR_EN TX_OFF(0, 0x68) -#define QSERDES_TX_LANE_MODE TX_OFF(0, 0x94) - -/* UFS PHY RX registers */ -#define QSERDES_RX_UCDR_FASTLOCK_FO_GAIN RX_OFF(0, 0x40) -#define QSERDES_RX_RX_TERM_BW RX_OFF(0, 0x90) -#define QSERDES_RX_RX_EQ_GAIN1_LSB RX_OFF(0, 0xC4) -#define QSERDES_RX_RX_EQ_GAIN1_MSB RX_OFF(0, 0xC8) -#define QSERDES_RX_RX_EQ_GAIN2_LSB RX_OFF(0, 0xCC) -#define QSERDES_RX_RX_EQ_GAIN2_MSB RX_OFF(0, 0xD0) -#define QSERDES_RX_RX_EQU_ADAPTOR_CNTRL2 RX_OFF(0, 0xD8) -#define QSERDES_RX_SIGDET_CNTRL RX_OFF(0, 0x114) -#define QSERDES_RX_SIGDET_LVL RX_OFF(0, 0x118) -#define QSERDES_RX_SIGDET_DEGLITCH_CNTRL RX_OFF(0, 0x11C) -#define QSERDES_RX_RX_INTERFACE_MODE RX_OFF(0, 0x12C) - -/* - * This structure represents the 14nm specific phy. - * common_cfg MUST remain the first field in this structure - * in case extra fields are added. This way, when calling - * get_ufs_qcom_phy() of generic phy, we can extract the - * common phy structure (struct ufs_qcom_phy) out of it - * regardless of the relevant specific phy. - */ -struct ufs_qcom_phy_qmp_14nm { - struct ufs_qcom_phy common_cfg; -}; - -static struct ufs_qcom_phy_calibration phy_cal_table_rate_A[] = { - UFS_QCOM_PHY_CAL_ENTRY(UFS_PHY_POWER_DOWN_CONTROL, 0x01), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_CMN_CONFIG, 0x0e), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_SYSCLK_EN_SEL, 0xd7), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_CLK_SELECT, 0x30), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_SYS_CLK_CTRL, 0x06), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_BIAS_EN_CLKBUFLR_EN, 0x08), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_BG_TIMER, 0x0a), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_HSCLK_SEL, 0x05), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_CORECLK_DIV, 0x0a), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_CORECLK_DIV_MODE1, 0x0a), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_LOCK_CMP_EN, 0x01), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_VCO_TUNE_CTRL, 0x10), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_RESETSM_CNTRL, 0x20), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_CORE_CLK_EN, 0x00), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_LOCK_CMP_CFG, 0x00), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_VCO_TUNE_TIMER1, 0xff), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_VCO_TUNE_TIMER2, 0x3f), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_VCO_TUNE_MAP, 0x14), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_SVS_MODE_CLK_SEL, 0x05), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_DEC_START_MODE0, 0x82), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_DIV_FRAC_START1_MODE0, 0x00), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_DIV_FRAC_START2_MODE0, 0x00), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_DIV_FRAC_START3_MODE0, 0x00), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_CP_CTRL_MODE0, 0x0b), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLL_RCTRL_MODE0, 0x16), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLL_CCTRL_MODE0, 0x28), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_INTEGLOOP_GAIN0_MODE0, 0x80), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_INTEGLOOP_GAIN1_MODE0, 0x00), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_VCO_TUNE1_MODE0, 0x28), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_VCO_TUNE2_MODE0, 0x02), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_LOCK_CMP1_MODE0, 0xff), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_LOCK_CMP2_MODE0, 0x0c), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_LOCK_CMP3_MODE0, 0x00), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_DEC_START_MODE1, 0x98), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_DIV_FRAC_START1_MODE1, 0x00), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_DIV_FRAC_START2_MODE1, 0x00), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_DIV_FRAC_START3_MODE1, 0x00), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_CP_CTRL_MODE1, 0x0b), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLL_RCTRL_MODE1, 0x16), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLL_CCTRL_MODE1, 0x28), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_INTEGLOOP_GAIN0_MODE1, 0x80), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_INTEGLOOP_GAIN1_MODE1, 0x00), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_VCO_TUNE1_MODE1, 0xd6), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_VCO_TUNE2_MODE1, 0x00), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_LOCK_CMP1_MODE1, 0x32), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_LOCK_CMP2_MODE1, 0x0f), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_LOCK_CMP3_MODE1, 0x00), - - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_TX_HIGHZ_TRANSCEIVER_BIAS_DRVR_EN, 0x45), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_TX_LANE_MODE, 0x02), - - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_SIGDET_LVL, 0x24), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_SIGDET_CNTRL, 0x02), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_INTERFACE_MODE, 0x00), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_SIGDET_DEGLITCH_CNTRL, 0x18), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_UCDR_FASTLOCK_FO_GAIN, 0x0B), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_TERM_BW, 0x5B), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQ_GAIN1_LSB, 0xFF), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQ_GAIN1_MSB, 0x3F), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQ_GAIN2_LSB, 0xFF), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQ_GAIN2_MSB, 0x0F), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQU_ADAPTOR_CNTRL2, 0x0E), -}; - -static struct ufs_qcom_phy_calibration phy_cal_table_rate_B[] = { - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_VCO_TUNE_MAP, 0x54), -}; - -#endif diff --git a/drivers/phy/qualcomm/phy-qcom-ufs-qmp-20nm.c b/drivers/phy/qualcomm/phy-qcom-ufs-qmp-20nm.c deleted file mode 100644 index 3e9d8b71e995..000000000000 --- a/drivers/phy/qualcomm/phy-qcom-ufs-qmp-20nm.c +++ /dev/null @@ -1,226 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (c) 2013-2015, Linux Foundation. All rights reserved. - */ - -#include "phy-qcom-ufs-qmp-20nm.h" - -#define UFS_PHY_NAME "ufs_phy_qmp_20nm" - -static -int ufs_qcom_phy_qmp_20nm_phy_calibrate(struct ufs_qcom_phy *ufs_qcom_phy, - bool is_rate_B) -{ - struct ufs_qcom_phy_calibration *tbl_A, *tbl_B; - int tbl_size_A, tbl_size_B; - u8 major = ufs_qcom_phy->host_ctrl_rev_major; - u16 minor = ufs_qcom_phy->host_ctrl_rev_minor; - u16 step = ufs_qcom_phy->host_ctrl_rev_step; - int err; - - if ((major == 0x1) && (minor == 0x002) && (step == 0x0000)) { - tbl_size_A = ARRAY_SIZE(phy_cal_table_rate_A_1_2_0); - tbl_A = phy_cal_table_rate_A_1_2_0; - } else if ((major == 0x1) && (minor == 0x003) && (step == 0x0000)) { - tbl_size_A = ARRAY_SIZE(phy_cal_table_rate_A_1_3_0); - tbl_A = phy_cal_table_rate_A_1_3_0; - } else { - dev_err(ufs_qcom_phy->dev, "%s: Unknown UFS-PHY version, no calibration values\n", - __func__); - err = -ENODEV; - goto out; - } - - tbl_size_B = ARRAY_SIZE(phy_cal_table_rate_B); - tbl_B = phy_cal_table_rate_B; - - err = ufs_qcom_phy_calibrate(ufs_qcom_phy, tbl_A, tbl_size_A, - tbl_B, tbl_size_B, is_rate_B); - - if (err) - dev_err(ufs_qcom_phy->dev, "%s: ufs_qcom_phy_calibrate() failed %d\n", - __func__, err); - -out: - return err; -} - -static -void ufs_qcom_phy_qmp_20nm_advertise_quirks(struct ufs_qcom_phy *phy_common) -{ - phy_common->quirks = - UFS_QCOM_PHY_QUIRK_HIBERN8_EXIT_AFTER_PHY_PWR_COLLAPSE; -} - -static -int ufs_qcom_phy_qmp_20nm_set_mode(struct phy *generic_phy, - enum phy_mode mode, int submode) -{ - struct ufs_qcom_phy *phy_common = get_ufs_qcom_phy(generic_phy); - - phy_common->mode = PHY_MODE_INVALID; - - if (mode > 0) - phy_common->mode = mode; - - return 0; -} - -static -void ufs_qcom_phy_qmp_20nm_power_control(struct ufs_qcom_phy *phy, bool val) -{ - bool hibern8_exit_after_pwr_collapse = phy->quirks & - UFS_QCOM_PHY_QUIRK_HIBERN8_EXIT_AFTER_PHY_PWR_COLLAPSE; - - if (val) { - writel_relaxed(0x1, phy->mmio + UFS_PHY_POWER_DOWN_CONTROL); - /* - * Before any transactions involving PHY, ensure PHY knows - * that it's analog rail is powered ON. - */ - mb(); - - if (hibern8_exit_after_pwr_collapse) { - /* - * Give atleast 1us delay after restoring PHY analog - * power. - */ - usleep_range(1, 2); - writel_relaxed(0x0A, phy->mmio + - QSERDES_COM_SYSCLK_EN_SEL_TXBAND); - writel_relaxed(0x08, phy->mmio + - QSERDES_COM_SYSCLK_EN_SEL_TXBAND); - /* - * Make sure workaround is deactivated before proceeding - * with normal PHY operations. - */ - mb(); - } - } else { - if (hibern8_exit_after_pwr_collapse) { - writel_relaxed(0x0A, phy->mmio + - QSERDES_COM_SYSCLK_EN_SEL_TXBAND); - writel_relaxed(0x02, phy->mmio + - QSERDES_COM_SYSCLK_EN_SEL_TXBAND); - /* - * Make sure that above workaround is activated before - * PHY analog power collapse. - */ - mb(); - } - - writel_relaxed(0x0, phy->mmio + UFS_PHY_POWER_DOWN_CONTROL); - /* - * ensure that PHY knows its PHY analog rail is going - * to be powered down - */ - mb(); - } -} - -static -void ufs_qcom_phy_qmp_20nm_set_tx_lane_enable(struct ufs_qcom_phy *phy, u32 val) -{ - writel_relaxed(val & UFS_PHY_TX_LANE_ENABLE_MASK, - phy->mmio + UFS_PHY_TX_LANE_ENABLE); - mb(); -} - -static inline void ufs_qcom_phy_qmp_20nm_start_serdes(struct ufs_qcom_phy *phy) -{ - u32 tmp; - - tmp = readl_relaxed(phy->mmio + UFS_PHY_PHY_START); - tmp &= ~MASK_SERDES_START; - tmp |= (1 << OFFSET_SERDES_START); - writel_relaxed(tmp, phy->mmio + UFS_PHY_PHY_START); - mb(); -} - -static int ufs_qcom_phy_qmp_20nm_is_pcs_ready(struct ufs_qcom_phy *phy_common) -{ - int err = 0; - u32 val; - - err = readl_poll_timeout(phy_common->mmio + UFS_PHY_PCS_READY_STATUS, - val, (val & MASK_PCS_READY), 10, 1000000); - if (err) - dev_err(phy_common->dev, "%s: poll for pcs failed err = %d\n", - __func__, err); - return err; -} - -static const struct phy_ops ufs_qcom_phy_qmp_20nm_phy_ops = { - .power_on = ufs_qcom_phy_power_on, - .power_off = ufs_qcom_phy_power_off, - .set_mode = ufs_qcom_phy_qmp_20nm_set_mode, - .owner = THIS_MODULE, -}; - -static struct ufs_qcom_phy_specific_ops phy_20nm_ops = { - .calibrate = ufs_qcom_phy_qmp_20nm_phy_calibrate, - .start_serdes = ufs_qcom_phy_qmp_20nm_start_serdes, - .is_physical_coding_sublayer_ready = ufs_qcom_phy_qmp_20nm_is_pcs_ready, - .set_tx_lane_enable = ufs_qcom_phy_qmp_20nm_set_tx_lane_enable, - .power_control = ufs_qcom_phy_qmp_20nm_power_control, -}; - -static int ufs_qcom_phy_qmp_20nm_probe(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct phy *generic_phy; - struct ufs_qcom_phy_qmp_20nm *phy; - struct ufs_qcom_phy *phy_common; - int err = 0; - - phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL); - if (!phy) { - err = -ENOMEM; - goto out; - } - phy_common = &phy->common_cfg; - - generic_phy = ufs_qcom_phy_generic_probe(pdev, phy_common, - &ufs_qcom_phy_qmp_20nm_phy_ops, &phy_20nm_ops); - - if (!generic_phy) { - err = -EIO; - goto out; - } - - err = ufs_qcom_phy_init_clks(phy_common); - if (err) - goto out; - - err = ufs_qcom_phy_init_vregulators(phy_common); - if (err) - goto out; - - ufs_qcom_phy_qmp_20nm_advertise_quirks(phy_common); - - phy_set_drvdata(generic_phy, phy); - - strlcpy(phy_common->name, UFS_PHY_NAME, sizeof(phy_common->name)); - -out: - return err; -} - -static const struct of_device_id ufs_qcom_phy_qmp_20nm_of_match[] = { - {.compatible = "qcom,ufs-phy-qmp-20nm"}, - {}, -}; -MODULE_DEVICE_TABLE(of, ufs_qcom_phy_qmp_20nm_of_match); - -static struct platform_driver ufs_qcom_phy_qmp_20nm_driver = { - .probe = ufs_qcom_phy_qmp_20nm_probe, - .driver = { - .of_match_table = ufs_qcom_phy_qmp_20nm_of_match, - .name = "ufs_qcom_phy_qmp_20nm", - }, -}; - -module_platform_driver(ufs_qcom_phy_qmp_20nm_driver); - -MODULE_DESCRIPTION("Universal Flash Storage (UFS) QCOM PHY QMP 20nm"); -MODULE_LICENSE("GPL v2"); diff --git a/drivers/phy/qualcomm/phy-qcom-ufs-qmp-20nm.h b/drivers/phy/qualcomm/phy-qcom-ufs-qmp-20nm.h deleted file mode 100644 index 8ce79f524eed..000000000000 --- a/drivers/phy/qualcomm/phy-qcom-ufs-qmp-20nm.h +++ /dev/null @@ -1,226 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Copyright (c) 2013-2015, Linux Foundation. All rights reserved. - */ - -#ifndef UFS_QCOM_PHY_QMP_20NM_H_ -#define UFS_QCOM_PHY_QMP_20NM_H_ - -#include "phy-qcom-ufs-i.h" - -/* QCOM UFS PHY control registers */ - -#define COM_OFF(x) (0x000 + x) -#define PHY_OFF(x) (0xC00 + x) -#define TX_OFF(n, x) (0x400 + (0x400 * n) + x) -#define RX_OFF(n, x) (0x600 + (0x400 * n) + x) - -/* UFS PHY PLL block registers */ -#define QSERDES_COM_SYS_CLK_CTRL COM_OFF(0x0) -#define QSERDES_COM_PLL_VCOTAIL_EN COM_OFF(0x04) -#define QSERDES_COM_PLL_CNTRL COM_OFF(0x14) -#define QSERDES_COM_PLL_IP_SETI COM_OFF(0x24) -#define QSERDES_COM_CORE_CLK_IN_SYNC_SEL COM_OFF(0x28) -#define QSERDES_COM_BIAS_EN_CLKBUFLR_EN COM_OFF(0x30) -#define QSERDES_COM_PLL_CP_SETI COM_OFF(0x34) -#define QSERDES_COM_PLL_IP_SETP COM_OFF(0x38) -#define QSERDES_COM_PLL_CP_SETP COM_OFF(0x3C) -#define QSERDES_COM_SYSCLK_EN_SEL_TXBAND COM_OFF(0x48) -#define QSERDES_COM_RESETSM_CNTRL COM_OFF(0x4C) -#define QSERDES_COM_RESETSM_CNTRL2 COM_OFF(0x50) -#define QSERDES_COM_PLLLOCK_CMP1 COM_OFF(0x90) -#define QSERDES_COM_PLLLOCK_CMP2 COM_OFF(0x94) -#define QSERDES_COM_PLLLOCK_CMP3 COM_OFF(0x98) -#define QSERDES_COM_PLLLOCK_CMP_EN COM_OFF(0x9C) -#define QSERDES_COM_BGTC COM_OFF(0xA0) -#define QSERDES_COM_DEC_START1 COM_OFF(0xAC) -#define QSERDES_COM_PLL_AMP_OS COM_OFF(0xB0) -#define QSERDES_COM_RES_CODE_UP_OFFSET COM_OFF(0xD8) -#define QSERDES_COM_RES_CODE_DN_OFFSET COM_OFF(0xDC) -#define QSERDES_COM_DIV_FRAC_START1 COM_OFF(0x100) -#define QSERDES_COM_DIV_FRAC_START2 COM_OFF(0x104) -#define QSERDES_COM_DIV_FRAC_START3 COM_OFF(0x108) -#define QSERDES_COM_DEC_START2 COM_OFF(0x10C) -#define QSERDES_COM_PLL_RXTXEPCLK_EN COM_OFF(0x110) -#define QSERDES_COM_PLL_CRCTRL COM_OFF(0x114) -#define QSERDES_COM_PLL_CLKEPDIV COM_OFF(0x118) - -/* TX LANE n (0, 1) registers */ -#define QSERDES_TX_EMP_POST1_LVL(n) TX_OFF(n, 0x08) -#define QSERDES_TX_DRV_LVL(n) TX_OFF(n, 0x0C) -#define QSERDES_TX_LANE_MODE(n) TX_OFF(n, 0x54) - -/* RX LANE n (0, 1) registers */ -#define QSERDES_RX_CDR_CONTROL1(n) RX_OFF(n, 0x0) -#define QSERDES_RX_CDR_CONTROL_HALF(n) RX_OFF(n, 0x8) -#define QSERDES_RX_RX_EQ_GAIN1_LSB(n) RX_OFF(n, 0xA8) -#define QSERDES_RX_RX_EQ_GAIN1_MSB(n) RX_OFF(n, 0xAC) -#define QSERDES_RX_RX_EQ_GAIN2_LSB(n) RX_OFF(n, 0xB0) -#define QSERDES_RX_RX_EQ_GAIN2_MSB(n) RX_OFF(n, 0xB4) -#define QSERDES_RX_RX_EQU_ADAPTOR_CNTRL2(n) RX_OFF(n, 0xBC) -#define QSERDES_RX_CDR_CONTROL_QUARTER(n) RX_OFF(n, 0xC) -#define QSERDES_RX_SIGDET_CNTRL(n) RX_OFF(n, 0x100) - -/* UFS PHY registers */ -#define UFS_PHY_PHY_START PHY_OFF(0x00) -#define UFS_PHY_POWER_DOWN_CONTROL PHY_OFF(0x4) -#define UFS_PHY_TX_LANE_ENABLE PHY_OFF(0x44) -#define UFS_PHY_PWM_G1_CLK_DIVIDER PHY_OFF(0x08) -#define UFS_PHY_PWM_G2_CLK_DIVIDER PHY_OFF(0x0C) -#define UFS_PHY_PWM_G3_CLK_DIVIDER PHY_OFF(0x10) -#define UFS_PHY_PWM_G4_CLK_DIVIDER PHY_OFF(0x14) -#define UFS_PHY_CORECLK_PWM_G1_CLK_DIVIDER PHY_OFF(0x34) -#define UFS_PHY_CORECLK_PWM_G2_CLK_DIVIDER PHY_OFF(0x38) -#define UFS_PHY_CORECLK_PWM_G3_CLK_DIVIDER PHY_OFF(0x3C) -#define UFS_PHY_CORECLK_PWM_G4_CLK_DIVIDER PHY_OFF(0x40) -#define UFS_PHY_OMC_STATUS_RDVAL PHY_OFF(0x68) -#define UFS_PHY_LINE_RESET_TIME PHY_OFF(0x28) -#define UFS_PHY_LINE_RESET_GRANULARITY PHY_OFF(0x2C) -#define UFS_PHY_TSYNC_RSYNC_CNTL PHY_OFF(0x48) -#define UFS_PHY_PLL_CNTL PHY_OFF(0x50) -#define UFS_PHY_TX_LARGE_AMP_DRV_LVL PHY_OFF(0x54) -#define UFS_PHY_TX_SMALL_AMP_DRV_LVL PHY_OFF(0x5C) -#define UFS_PHY_TX_LARGE_AMP_POST_EMP_LVL PHY_OFF(0x58) -#define UFS_PHY_TX_SMALL_AMP_POST_EMP_LVL PHY_OFF(0x60) -#define UFS_PHY_CFG_CHANGE_CNT_VAL PHY_OFF(0x64) -#define UFS_PHY_RX_SYNC_WAIT_TIME PHY_OFF(0x6C) -#define UFS_PHY_TX_MIN_SLEEP_NOCONFIG_TIME_CAPABILITY PHY_OFF(0xB4) -#define UFS_PHY_RX_MIN_SLEEP_NOCONFIG_TIME_CAPABILITY PHY_OFF(0xE0) -#define UFS_PHY_TX_MIN_STALL_NOCONFIG_TIME_CAPABILITY PHY_OFF(0xB8) -#define UFS_PHY_RX_MIN_STALL_NOCONFIG_TIME_CAPABILITY PHY_OFF(0xE4) -#define UFS_PHY_TX_MIN_SAVE_CONFIG_TIME_CAPABILITY PHY_OFF(0xBC) -#define UFS_PHY_RX_MIN_SAVE_CONFIG_TIME_CAPABILITY PHY_OFF(0xE8) -#define UFS_PHY_RX_PWM_BURST_CLOSURE_LENGTH_CAPABILITY PHY_OFF(0xFC) -#define UFS_PHY_RX_MIN_ACTIVATETIME_CAPABILITY PHY_OFF(0x100) -#define UFS_PHY_RX_SIGDET_CTRL3 PHY_OFF(0x14c) -#define UFS_PHY_RMMI_ATTR_CTRL PHY_OFF(0x160) -#define UFS_PHY_RMMI_RX_CFGUPDT_L1 (1 << 7) -#define UFS_PHY_RMMI_TX_CFGUPDT_L1 (1 << 6) -#define UFS_PHY_RMMI_CFGWR_L1 (1 << 5) -#define UFS_PHY_RMMI_CFGRD_L1 (1 << 4) -#define UFS_PHY_RMMI_RX_CFGUPDT_L0 (1 << 3) -#define UFS_PHY_RMMI_TX_CFGUPDT_L0 (1 << 2) -#define UFS_PHY_RMMI_CFGWR_L0 (1 << 1) -#define UFS_PHY_RMMI_CFGRD_L0 (1 << 0) -#define UFS_PHY_RMMI_ATTRID PHY_OFF(0x164) -#define UFS_PHY_RMMI_ATTRWRVAL PHY_OFF(0x168) -#define UFS_PHY_RMMI_ATTRRDVAL_L0_STATUS PHY_OFF(0x16C) -#define UFS_PHY_RMMI_ATTRRDVAL_L1_STATUS PHY_OFF(0x170) -#define UFS_PHY_PCS_READY_STATUS PHY_OFF(0x174) - -#define UFS_PHY_TX_LANE_ENABLE_MASK 0x3 - -/* - * This structure represents the 20nm specific phy. - * common_cfg MUST remain the first field in this structure - * in case extra fields are added. This way, when calling - * get_ufs_qcom_phy() of generic phy, we can extract the - * common phy structure (struct ufs_qcom_phy) out of it - * regardless of the relevant specific phy. - */ -struct ufs_qcom_phy_qmp_20nm { - struct ufs_qcom_phy common_cfg; -}; - -static struct ufs_qcom_phy_calibration phy_cal_table_rate_A_1_2_0[] = { - UFS_QCOM_PHY_CAL_ENTRY(UFS_PHY_POWER_DOWN_CONTROL, 0x01), - UFS_QCOM_PHY_CAL_ENTRY(UFS_PHY_RX_SIGDET_CTRL3, 0x0D), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLL_VCOTAIL_EN, 0xe1), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLL_CRCTRL, 0xcc), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_SYSCLK_EN_SEL_TXBAND, 0x08), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLL_CLKEPDIV, 0x03), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLL_RXTXEPCLK_EN, 0x10), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_DEC_START1, 0x82), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_DEC_START2, 0x03), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_DIV_FRAC_START1, 0x80), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_DIV_FRAC_START2, 0x80), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_DIV_FRAC_START3, 0x40), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLLLOCK_CMP1, 0xff), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLLLOCK_CMP2, 0x19), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLLLOCK_CMP3, 0x00), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLLLOCK_CMP_EN, 0x03), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_RESETSM_CNTRL, 0x90), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_RESETSM_CNTRL2, 0x03), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_CDR_CONTROL1(0), 0xf2), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_CDR_CONTROL_HALF(0), 0x0c), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_CDR_CONTROL_QUARTER(0), 0x12), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_CDR_CONTROL1(1), 0xf2), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_CDR_CONTROL_HALF(1), 0x0c), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_CDR_CONTROL_QUARTER(1), 0x12), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQ_GAIN1_LSB(0), 0xff), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQ_GAIN1_MSB(0), 0xff), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQ_GAIN2_LSB(0), 0xff), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQ_GAIN2_MSB(0), 0x00), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQ_GAIN1_LSB(1), 0xff), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQ_GAIN1_MSB(1), 0xff), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQ_GAIN2_LSB(1), 0xff), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQ_GAIN2_MSB(1), 0x00), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLL_CP_SETI, 0x3f), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLL_IP_SETP, 0x1b), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLL_CP_SETP, 0x0f), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLL_IP_SETI, 0x01), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_TX_EMP_POST1_LVL(0), 0x2F), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_TX_DRV_LVL(0), 0x20), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_TX_EMP_POST1_LVL(1), 0x2F), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_TX_DRV_LVL(1), 0x20), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_TX_LANE_MODE(0), 0x68), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_TX_LANE_MODE(1), 0x68), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQU_ADAPTOR_CNTRL2(1), 0xdc), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQU_ADAPTOR_CNTRL2(0), 0xdc), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_BIAS_EN_CLKBUFLR_EN, 0x3), -}; - -static struct ufs_qcom_phy_calibration phy_cal_table_rate_A_1_3_0[] = { - UFS_QCOM_PHY_CAL_ENTRY(UFS_PHY_POWER_DOWN_CONTROL, 0x01), - UFS_QCOM_PHY_CAL_ENTRY(UFS_PHY_RX_SIGDET_CTRL3, 0x0D), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLL_VCOTAIL_EN, 0xe1), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLL_CRCTRL, 0xcc), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_SYSCLK_EN_SEL_TXBAND, 0x08), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLL_CLKEPDIV, 0x03), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLL_RXTXEPCLK_EN, 0x10), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_DEC_START1, 0x82), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_DEC_START2, 0x03), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_DIV_FRAC_START1, 0x80), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_DIV_FRAC_START2, 0x80), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_DIV_FRAC_START3, 0x40), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLLLOCK_CMP1, 0xff), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLLLOCK_CMP2, 0x19), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLLLOCK_CMP3, 0x00), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLLLOCK_CMP_EN, 0x03), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_RESETSM_CNTRL, 0x90), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_RESETSM_CNTRL2, 0x03), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_CDR_CONTROL1(0), 0xf2), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_CDR_CONTROL_HALF(0), 0x0c), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_CDR_CONTROL_QUARTER(0), 0x12), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_CDR_CONTROL1(1), 0xf2), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_CDR_CONTROL_HALF(1), 0x0c), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_CDR_CONTROL_QUARTER(1), 0x12), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQ_GAIN1_LSB(0), 0xff), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQ_GAIN1_MSB(0), 0xff), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQ_GAIN2_LSB(0), 0xff), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQ_GAIN2_MSB(0), 0x00), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQ_GAIN1_LSB(1), 0xff), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQ_GAIN1_MSB(1), 0xff), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQ_GAIN2_LSB(1), 0xff), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQ_GAIN2_MSB(1), 0x00), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLL_CP_SETI, 0x2b), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLL_IP_SETP, 0x38), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLL_CP_SETP, 0x3c), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_RES_CODE_UP_OFFSET, 0x02), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_RES_CODE_DN_OFFSET, 0x02), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLL_IP_SETI, 0x01), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLL_CNTRL, 0x40), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_TX_LANE_MODE(0), 0x68), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_TX_LANE_MODE(1), 0x68), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQU_ADAPTOR_CNTRL2(1), 0xdc), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_RX_RX_EQU_ADAPTOR_CNTRL2(0), 0xdc), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_BIAS_EN_CLKBUFLR_EN, 0x3), -}; - -static struct ufs_qcom_phy_calibration phy_cal_table_rate_B[] = { - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_DEC_START1, 0x98), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLLLOCK_CMP1, 0x65), - UFS_QCOM_PHY_CAL_ENTRY(QSERDES_COM_PLLLOCK_CMP2, 0x1e), -}; - -#endif diff --git a/drivers/phy/qualcomm/phy-qcom-ufs.c b/drivers/phy/qualcomm/phy-qcom-ufs.c deleted file mode 100644 index 763c8d396af1..000000000000 --- a/drivers/phy/qualcomm/phy-qcom-ufs.c +++ /dev/null @@ -1,648 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (c) 2013-2015, Linux Foundation. All rights reserved. - */ - -#include "phy-qcom-ufs-i.h" - -#define MAX_PROP_NAME 32 -#define VDDA_PHY_MIN_UV 1000000 -#define VDDA_PHY_MAX_UV 1000000 -#define VDDA_PLL_MIN_UV 1800000 -#define VDDA_PLL_MAX_UV 1800000 -#define VDDP_REF_CLK_MIN_UV 1200000 -#define VDDP_REF_CLK_MAX_UV 1200000 - -int ufs_qcom_phy_calibrate(struct ufs_qcom_phy *ufs_qcom_phy, - struct ufs_qcom_phy_calibration *tbl_A, - int tbl_size_A, - struct ufs_qcom_phy_calibration *tbl_B, - int tbl_size_B, bool is_rate_B) -{ - int i; - int ret = 0; - - if (!tbl_A) { - dev_err(ufs_qcom_phy->dev, "%s: tbl_A is NULL", __func__); - ret = EINVAL; - goto out; - } - - for (i = 0; i < tbl_size_A; i++) - writel_relaxed(tbl_A[i].cfg_value, - ufs_qcom_phy->mmio + tbl_A[i].reg_offset); - - /* - * In case we would like to work in rate B, we need - * to override a registers that were configured in rate A table - * with registers of rate B table. - * table. - */ - if (is_rate_B) { - if (!tbl_B) { - dev_err(ufs_qcom_phy->dev, "%s: tbl_B is NULL", - __func__); - ret = EINVAL; - goto out; - } - - for (i = 0; i < tbl_size_B; i++) - writel_relaxed(tbl_B[i].cfg_value, - ufs_qcom_phy->mmio + tbl_B[i].reg_offset); - } - - /* flush buffered writes */ - mb(); - -out: - return ret; -} -EXPORT_SYMBOL_GPL(ufs_qcom_phy_calibrate); - -/* - * This assumes the embedded phy structure inside generic_phy is of type - * struct ufs_qcom_phy. In order to function properly it's crucial - * to keep the embedded struct "struct ufs_qcom_phy common_cfg" - * as the first inside generic_phy. - */ -struct ufs_qcom_phy *get_ufs_qcom_phy(struct phy *generic_phy) -{ - return (struct ufs_qcom_phy *)phy_get_drvdata(generic_phy); -} -EXPORT_SYMBOL_GPL(get_ufs_qcom_phy); - -static -int ufs_qcom_phy_base_init(struct platform_device *pdev, - struct ufs_qcom_phy *phy_common) -{ - struct device *dev = &pdev->dev; - struct resource *res; - int err = 0; - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "phy_mem"); - phy_common->mmio = devm_ioremap_resource(dev, res); - if (IS_ERR((void const *)phy_common->mmio)) { - err = PTR_ERR((void const *)phy_common->mmio); - phy_common->mmio = NULL; - dev_err(dev, "%s: ioremap for phy_mem resource failed %d\n", - __func__, err); - return err; - } - - /* "dev_ref_clk_ctrl_mem" is optional resource */ - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, - "dev_ref_clk_ctrl_mem"); - phy_common->dev_ref_clk_ctrl_mmio = devm_ioremap_resource(dev, res); - if (IS_ERR((void const *)phy_common->dev_ref_clk_ctrl_mmio)) - phy_common->dev_ref_clk_ctrl_mmio = NULL; - - return 0; -} - -struct phy *ufs_qcom_phy_generic_probe(struct platform_device *pdev, - struct ufs_qcom_phy *common_cfg, - const struct phy_ops *ufs_qcom_phy_gen_ops, - struct ufs_qcom_phy_specific_ops *phy_spec_ops) -{ - int err; - struct device *dev = &pdev->dev; - struct phy *generic_phy = NULL; - struct phy_provider *phy_provider; - - err = ufs_qcom_phy_base_init(pdev, common_cfg); - if (err) { - dev_err(dev, "%s: phy base init failed %d\n", __func__, err); - goto out; - } - - phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); - if (IS_ERR(phy_provider)) { - err = PTR_ERR(phy_provider); - dev_err(dev, "%s: failed to register phy %d\n", __func__, err); - goto out; - } - - generic_phy = devm_phy_create(dev, NULL, ufs_qcom_phy_gen_ops); - if (IS_ERR(generic_phy)) { - err = PTR_ERR(generic_phy); - dev_err(dev, "%s: failed to create phy %d\n", __func__, err); - generic_phy = NULL; - goto out; - } - - common_cfg->phy_spec_ops = phy_spec_ops; - common_cfg->dev = dev; - -out: - return generic_phy; -} -EXPORT_SYMBOL_GPL(ufs_qcom_phy_generic_probe); - -static int ufs_qcom_phy_get_reset(struct ufs_qcom_phy *phy_common) -{ - struct reset_control *reset; - - if (phy_common->ufs_reset) - return 0; - - reset = devm_reset_control_get_exclusive_by_index(phy_common->dev, 0); - if (IS_ERR(reset)) - return PTR_ERR(reset); - - phy_common->ufs_reset = reset; - return 0; -} - -static int __ufs_qcom_phy_clk_get(struct device *dev, - const char *name, struct clk **clk_out, bool err_print) -{ - struct clk *clk; - int err = 0; - - clk = devm_clk_get(dev, name); - if (IS_ERR(clk)) { - err = PTR_ERR(clk); - if (err_print) - dev_err(dev, "failed to get %s err %d", name, err); - } else { - *clk_out = clk; - } - - return err; -} - -static int ufs_qcom_phy_clk_get(struct device *dev, - const char *name, struct clk **clk_out) -{ - return __ufs_qcom_phy_clk_get(dev, name, clk_out, true); -} - -int ufs_qcom_phy_init_clks(struct ufs_qcom_phy *phy_common) -{ - int err; - - if (of_device_is_compatible(phy_common->dev->of_node, - "qcom,msm8996-ufs-phy-qmp-14nm")) - goto skip_txrx_clk; - - err = ufs_qcom_phy_clk_get(phy_common->dev, "tx_iface_clk", - &phy_common->tx_iface_clk); - if (err) - goto out; - - err = ufs_qcom_phy_clk_get(phy_common->dev, "rx_iface_clk", - &phy_common->rx_iface_clk); - if (err) - goto out; - -skip_txrx_clk: - err = ufs_qcom_phy_clk_get(phy_common->dev, "ref_clk_src", - &phy_common->ref_clk_src); - if (err) - goto out; - - /* - * "ref_clk_parent" is optional hence don't abort init if it's not - * found. - */ - __ufs_qcom_phy_clk_get(phy_common->dev, "ref_clk_parent", - &phy_common->ref_clk_parent, false); - - err = ufs_qcom_phy_clk_get(phy_common->dev, "ref_clk", - &phy_common->ref_clk); - -out: - return err; -} -EXPORT_SYMBOL_GPL(ufs_qcom_phy_init_clks); - -static int ufs_qcom_phy_init_vreg(struct device *dev, - struct ufs_qcom_phy_vreg *vreg, - const char *name) -{ - int err = 0; - - char prop_name[MAX_PROP_NAME]; - - vreg->name = name; - vreg->reg = devm_regulator_get(dev, name); - if (IS_ERR(vreg->reg)) { - err = PTR_ERR(vreg->reg); - dev_err(dev, "failed to get %s, %d\n", name, err); - goto out; - } - - if (dev->of_node) { - snprintf(prop_name, MAX_PROP_NAME, "%s-max-microamp", name); - err = of_property_read_u32(dev->of_node, - prop_name, &vreg->max_uA); - if (err && err != -EINVAL) { - dev_err(dev, "%s: failed to read %s\n", - __func__, prop_name); - goto out; - } else if (err == -EINVAL || !vreg->max_uA) { - if (regulator_count_voltages(vreg->reg) > 0) { - dev_err(dev, "%s: %s is mandatory\n", - __func__, prop_name); - goto out; - } - err = 0; - } - } - - if (!strcmp(name, "vdda-pll")) { - vreg->max_uV = VDDA_PLL_MAX_UV; - vreg->min_uV = VDDA_PLL_MIN_UV; - } else if (!strcmp(name, "vdda-phy")) { - vreg->max_uV = VDDA_PHY_MAX_UV; - vreg->min_uV = VDDA_PHY_MIN_UV; - } else if (!strcmp(name, "vddp-ref-clk")) { - vreg->max_uV = VDDP_REF_CLK_MAX_UV; - vreg->min_uV = VDDP_REF_CLK_MIN_UV; - } - -out: - return err; -} - -int ufs_qcom_phy_init_vregulators(struct ufs_qcom_phy *phy_common) -{ - int err; - - err = ufs_qcom_phy_init_vreg(phy_common->dev, &phy_common->vdda_pll, - "vdda-pll"); - if (err) - goto out; - - err = ufs_qcom_phy_init_vreg(phy_common->dev, &phy_common->vdda_phy, - "vdda-phy"); - - if (err) - goto out; - - err = ufs_qcom_phy_init_vreg(phy_common->dev, &phy_common->vddp_ref_clk, - "vddp-ref-clk"); - -out: - return err; -} -EXPORT_SYMBOL_GPL(ufs_qcom_phy_init_vregulators); - -static int ufs_qcom_phy_cfg_vreg(struct device *dev, - struct ufs_qcom_phy_vreg *vreg, bool on) -{ - int ret = 0; - struct regulator *reg = vreg->reg; - const char *name = vreg->name; - int min_uV; - int uA_load; - - if (regulator_count_voltages(reg) > 0) { - min_uV = on ? vreg->min_uV : 0; - ret = regulator_set_voltage(reg, min_uV, vreg->max_uV); - if (ret) { - dev_err(dev, "%s: %s set voltage failed, err=%d\n", - __func__, name, ret); - goto out; - } - uA_load = on ? vreg->max_uA : 0; - ret = regulator_set_load(reg, uA_load); - if (ret >= 0) { - /* - * regulator_set_load() returns new regulator - * mode upon success. - */ - ret = 0; - } else { - dev_err(dev, "%s: %s set optimum mode(uA_load=%d) failed, err=%d\n", - __func__, name, uA_load, ret); - goto out; - } - } -out: - return ret; -} - -static int ufs_qcom_phy_enable_vreg(struct device *dev, - struct ufs_qcom_phy_vreg *vreg) -{ - int ret = 0; - - if (!vreg || vreg->enabled) - goto out; - - ret = ufs_qcom_phy_cfg_vreg(dev, vreg, true); - if (ret) { - dev_err(dev, "%s: ufs_qcom_phy_cfg_vreg() failed, err=%d\n", - __func__, ret); - goto out; - } - - ret = regulator_enable(vreg->reg); - if (ret) { - dev_err(dev, "%s: enable failed, err=%d\n", - __func__, ret); - goto out; - } - - vreg->enabled = true; -out: - return ret; -} - -static int ufs_qcom_phy_enable_ref_clk(struct ufs_qcom_phy *phy) -{ - int ret = 0; - - if (phy->is_ref_clk_enabled) - goto out; - - /* - * reference clock is propagated in a daisy-chained manner from - * source to phy, so ungate them at each stage. - */ - ret = clk_prepare_enable(phy->ref_clk_src); - if (ret) { - dev_err(phy->dev, "%s: ref_clk_src enable failed %d\n", - __func__, ret); - goto out; - } - - /* - * "ref_clk_parent" is optional clock hence make sure that clk reference - * is available before trying to enable the clock. - */ - if (phy->ref_clk_parent) { - ret = clk_prepare_enable(phy->ref_clk_parent); - if (ret) { - dev_err(phy->dev, "%s: ref_clk_parent enable failed %d\n", - __func__, ret); - goto out_disable_src; - } - } - - ret = clk_prepare_enable(phy->ref_clk); - if (ret) { - dev_err(phy->dev, "%s: ref_clk enable failed %d\n", - __func__, ret); - goto out_disable_parent; - } - - phy->is_ref_clk_enabled = true; - goto out; - -out_disable_parent: - if (phy->ref_clk_parent) - clk_disable_unprepare(phy->ref_clk_parent); -out_disable_src: - clk_disable_unprepare(phy->ref_clk_src); -out: - return ret; -} - -static int ufs_qcom_phy_disable_vreg(struct device *dev, - struct ufs_qcom_phy_vreg *vreg) -{ - int ret = 0; - - if (!vreg || !vreg->enabled) - goto out; - - ret = regulator_disable(vreg->reg); - - if (!ret) { - /* ignore errors on applying disable config */ - ufs_qcom_phy_cfg_vreg(dev, vreg, false); - vreg->enabled = false; - } else { - dev_err(dev, "%s: %s disable failed, err=%d\n", - __func__, vreg->name, ret); - } -out: - return ret; -} - -static void ufs_qcom_phy_disable_ref_clk(struct ufs_qcom_phy *phy) -{ - if (phy->is_ref_clk_enabled) { - clk_disable_unprepare(phy->ref_clk); - /* - * "ref_clk_parent" is optional clock hence make sure that clk - * reference is available before trying to disable the clock. - */ - if (phy->ref_clk_parent) - clk_disable_unprepare(phy->ref_clk_parent); - clk_disable_unprepare(phy->ref_clk_src); - phy->is_ref_clk_enabled = false; - } -} - -/* Turn ON M-PHY RMMI interface clocks */ -static int ufs_qcom_phy_enable_iface_clk(struct ufs_qcom_phy *phy) -{ - int ret = 0; - - if (phy->is_iface_clk_enabled) - goto out; - - ret = clk_prepare_enable(phy->tx_iface_clk); - if (ret) { - dev_err(phy->dev, "%s: tx_iface_clk enable failed %d\n", - __func__, ret); - goto out; - } - ret = clk_prepare_enable(phy->rx_iface_clk); - if (ret) { - clk_disable_unprepare(phy->tx_iface_clk); - dev_err(phy->dev, "%s: rx_iface_clk enable failed %d. disabling also tx_iface_clk\n", - __func__, ret); - goto out; - } - phy->is_iface_clk_enabled = true; - -out: - return ret; -} - -/* Turn OFF M-PHY RMMI interface clocks */ -static void ufs_qcom_phy_disable_iface_clk(struct ufs_qcom_phy *phy) -{ - if (phy->is_iface_clk_enabled) { - clk_disable_unprepare(phy->tx_iface_clk); - clk_disable_unprepare(phy->rx_iface_clk); - phy->is_iface_clk_enabled = false; - } -} - -static int ufs_qcom_phy_start_serdes(struct ufs_qcom_phy *ufs_qcom_phy) -{ - int ret = 0; - - if (!ufs_qcom_phy->phy_spec_ops->start_serdes) { - dev_err(ufs_qcom_phy->dev, "%s: start_serdes() callback is not supported\n", - __func__); - ret = -ENOTSUPP; - } else { - ufs_qcom_phy->phy_spec_ops->start_serdes(ufs_qcom_phy); - } - - return ret; -} - -int ufs_qcom_phy_set_tx_lane_enable(struct phy *generic_phy, u32 tx_lanes) -{ - struct ufs_qcom_phy *ufs_qcom_phy = get_ufs_qcom_phy(generic_phy); - int ret = 0; - - if (!ufs_qcom_phy->phy_spec_ops->set_tx_lane_enable) { - dev_err(ufs_qcom_phy->dev, "%s: set_tx_lane_enable() callback is not supported\n", - __func__); - ret = -ENOTSUPP; - } else { - ufs_qcom_phy->phy_spec_ops->set_tx_lane_enable(ufs_qcom_phy, - tx_lanes); - } - - return ret; -} -EXPORT_SYMBOL_GPL(ufs_qcom_phy_set_tx_lane_enable); - -void ufs_qcom_phy_save_controller_version(struct phy *generic_phy, - u8 major, u16 minor, u16 step) -{ - struct ufs_qcom_phy *ufs_qcom_phy = get_ufs_qcom_phy(generic_phy); - - ufs_qcom_phy->host_ctrl_rev_major = major; - ufs_qcom_phy->host_ctrl_rev_minor = minor; - ufs_qcom_phy->host_ctrl_rev_step = step; -} -EXPORT_SYMBOL_GPL(ufs_qcom_phy_save_controller_version); - -static int ufs_qcom_phy_is_pcs_ready(struct ufs_qcom_phy *ufs_qcom_phy) -{ - if (!ufs_qcom_phy->phy_spec_ops->is_physical_coding_sublayer_ready) { - dev_err(ufs_qcom_phy->dev, "%s: is_physical_coding_sublayer_ready() callback is not supported\n", - __func__); - return -ENOTSUPP; - } - - return ufs_qcom_phy->phy_spec_ops-> - is_physical_coding_sublayer_ready(ufs_qcom_phy); -} - -int ufs_qcom_phy_power_on(struct phy *generic_phy) -{ - struct ufs_qcom_phy *phy_common = get_ufs_qcom_phy(generic_phy); - struct device *dev = phy_common->dev; - bool is_rate_B = false; - int err; - - err = ufs_qcom_phy_get_reset(phy_common); - if (err) - return err; - - err = reset_control_assert(phy_common->ufs_reset); - if (err) - return err; - - if (phy_common->mode == PHY_MODE_UFS_HS_B) - is_rate_B = true; - - err = phy_common->phy_spec_ops->calibrate(phy_common, is_rate_B); - if (err) - return err; - - err = reset_control_deassert(phy_common->ufs_reset); - if (err) { - dev_err(dev, "Failed to assert UFS PHY reset"); - return err; - } - - err = ufs_qcom_phy_start_serdes(phy_common); - if (err) - return err; - - err = ufs_qcom_phy_is_pcs_ready(phy_common); - if (err) - return err; - - err = ufs_qcom_phy_enable_vreg(dev, &phy_common->vdda_phy); - if (err) { - dev_err(dev, "%s enable vdda_phy failed, err=%d\n", - __func__, err); - goto out; - } - - phy_common->phy_spec_ops->power_control(phy_common, true); - - /* vdda_pll also enables ref clock LDOs so enable it first */ - err = ufs_qcom_phy_enable_vreg(dev, &phy_common->vdda_pll); - if (err) { - dev_err(dev, "%s enable vdda_pll failed, err=%d\n", - __func__, err); - goto out_disable_phy; - } - - err = ufs_qcom_phy_enable_iface_clk(phy_common); - if (err) { - dev_err(dev, "%s enable phy iface clock failed, err=%d\n", - __func__, err); - goto out_disable_pll; - } - - err = ufs_qcom_phy_enable_ref_clk(phy_common); - if (err) { - dev_err(dev, "%s enable phy ref clock failed, err=%d\n", - __func__, err); - goto out_disable_iface_clk; - } - - /* enable device PHY ref_clk pad rail */ - if (phy_common->vddp_ref_clk.reg) { - err = ufs_qcom_phy_enable_vreg(dev, - &phy_common->vddp_ref_clk); - if (err) { - dev_err(dev, "%s enable vddp_ref_clk failed, err=%d\n", - __func__, err); - goto out_disable_ref_clk; - } - } - - goto out; - -out_disable_ref_clk: - ufs_qcom_phy_disable_ref_clk(phy_common); -out_disable_iface_clk: - ufs_qcom_phy_disable_iface_clk(phy_common); -out_disable_pll: - ufs_qcom_phy_disable_vreg(dev, &phy_common->vdda_pll); -out_disable_phy: - ufs_qcom_phy_disable_vreg(dev, &phy_common->vdda_phy); -out: - return err; -} -EXPORT_SYMBOL_GPL(ufs_qcom_phy_power_on); - -int ufs_qcom_phy_power_off(struct phy *generic_phy) -{ - struct ufs_qcom_phy *phy_common = get_ufs_qcom_phy(generic_phy); - - phy_common->phy_spec_ops->power_control(phy_common, false); - - if (phy_common->vddp_ref_clk.reg) - ufs_qcom_phy_disable_vreg(phy_common->dev, - &phy_common->vddp_ref_clk); - ufs_qcom_phy_disable_ref_clk(phy_common); - ufs_qcom_phy_disable_iface_clk(phy_common); - - ufs_qcom_phy_disable_vreg(phy_common->dev, &phy_common->vdda_pll); - ufs_qcom_phy_disable_vreg(phy_common->dev, &phy_common->vdda_phy); - reset_control_assert(phy_common->ufs_reset); - return 0; -} -EXPORT_SYMBOL_GPL(ufs_qcom_phy_power_off); - -MODULE_AUTHOR("Yaniv Gardi <ygardi@codeaurora.org>"); -MODULE_AUTHOR("Vivek Gautam <vivek.gautam@codeaurora.org>"); -MODULE_DESCRIPTION("Universal Flash Storage (UFS) QCOM PHY"); -MODULE_LICENSE("GPL v2"); diff --git a/drivers/phy/renesas/phy-rcar-gen3-usb2.c b/drivers/phy/renesas/phy-rcar-gen3-usb2.c index bfb22f868857..e34e4475027c 100644 --- a/drivers/phy/renesas/phy-rcar-gen3-usb2.c +++ b/drivers/phy/renesas/phy-rcar-gen3-usb2.c @@ -111,6 +111,7 @@ struct rcar_gen3_chan { struct work_struct work; struct mutex lock; /* protects rphys[...].powered */ enum usb_dr_mode dr_mode; + int irq; bool extcon_host; bool is_otg_channel; bool uses_otg_pins; @@ -389,12 +390,40 @@ static void rcar_gen3_init_otg(struct rcar_gen3_chan *ch) rcar_gen3_device_recognition(ch); } +static irqreturn_t rcar_gen3_phy_usb2_irq(int irq, void *_ch) +{ + struct rcar_gen3_chan *ch = _ch; + void __iomem *usb2_base = ch->base; + u32 status = readl(usb2_base + USB2_OBINTSTA); + irqreturn_t ret = IRQ_NONE; + + if (status & USB2_OBINT_BITS) { + dev_vdbg(ch->dev, "%s: %08x\n", __func__, status); + writel(USB2_OBINT_BITS, usb2_base + USB2_OBINTSTA); + rcar_gen3_device_recognition(ch); + ret = IRQ_HANDLED; + } + + return ret; +} + static int rcar_gen3_phy_usb2_init(struct phy *p) { struct rcar_gen3_phy *rphy = phy_get_drvdata(p); struct rcar_gen3_chan *channel = rphy->ch; void __iomem *usb2_base = channel->base; u32 val; + int ret; + + if (!rcar_gen3_is_any_rphy_initialized(channel) && channel->irq >= 0) { + INIT_WORK(&channel->work, rcar_gen3_phy_usb2_work); + ret = request_irq(channel->irq, rcar_gen3_phy_usb2_irq, + IRQF_SHARED, dev_name(channel->dev), channel); + if (ret < 0) { + dev_err(channel->dev, "No irq handler (%d)\n", channel->irq); + return ret; + } + } /* Initialize USB2 part */ val = readl(usb2_base + USB2_INT_ENABLE); @@ -433,6 +462,9 @@ static int rcar_gen3_phy_usb2_exit(struct phy *p) val &= ~USB2_INT_ENABLE_UCOM_INTEN; writel(val, usb2_base + USB2_INT_ENABLE); + if (channel->irq >= 0 && !rcar_gen3_is_any_rphy_initialized(channel)) + free_irq(channel->irq, channel); + return 0; } @@ -503,23 +535,6 @@ static const struct phy_ops rz_g1c_phy_usb2_ops = { .owner = THIS_MODULE, }; -static irqreturn_t rcar_gen3_phy_usb2_irq(int irq, void *_ch) -{ - struct rcar_gen3_chan *ch = _ch; - void __iomem *usb2_base = ch->base; - u32 status = readl(usb2_base + USB2_OBINTSTA); - irqreturn_t ret = IRQ_NONE; - - if (status & USB2_OBINT_BITS) { - dev_vdbg(ch->dev, "%s: %08x\n", __func__, status); - writel(USB2_OBINT_BITS, usb2_base + USB2_OBINTSTA); - rcar_gen3_device_recognition(ch); - ret = IRQ_HANDLED; - } - - return ret; -} - static const struct of_device_id rcar_gen3_phy_usb2_match_table[] = { { .compatible = "renesas,usb2-phy-r8a77470", @@ -598,7 +613,7 @@ static int rcar_gen3_phy_usb2_probe(struct platform_device *pdev) struct phy_provider *provider; struct resource *res; const struct phy_ops *phy_usb2_ops; - int irq, ret = 0, i; + int ret = 0, i; if (!dev->of_node) { dev_err(dev, "This driver needs device tree\n"); @@ -614,16 +629,8 @@ static int rcar_gen3_phy_usb2_probe(struct platform_device *pdev) if (IS_ERR(channel->base)) return PTR_ERR(channel->base); - /* call request_irq for OTG */ - irq = platform_get_irq_optional(pdev, 0); - if (irq >= 0) { - INIT_WORK(&channel->work, rcar_gen3_phy_usb2_work); - irq = devm_request_irq(dev, irq, rcar_gen3_phy_usb2_irq, - IRQF_SHARED, dev_name(dev), channel); - if (irq < 0) - dev_err(dev, "No irq handler (%d)\n", irq); - } - + /* get irq number here and request_irq for OTG in phy_init */ + channel->irq = platform_get_irq_optional(pdev, 0); channel->dr_mode = rcar_gen3_get_dr_mode(dev->of_node); if (channel->dr_mode != USB_DR_MODE_UNKNOWN) { int ret; diff --git a/drivers/phy/rockchip/phy-rockchip-typec.c b/drivers/phy/rockchip/phy-rockchip-typec.c index 24563160197f..70a31251b202 100644 --- a/drivers/phy/rockchip/phy-rockchip-typec.c +++ b/drivers/phy/rockchip/phy-rockchip-typec.c @@ -347,7 +347,7 @@ struct usb3phy_reg { }; /** - * struct rockchip_usb3phy_port_cfg: usb3-phy port configuration. + * struct rockchip_usb3phy_port_cfg - usb3-phy port configuration. * @reg: the base address for usb3-phy config. * @typec_conn_dir: the register of type-c connector direction. * @usb3tousb2_en: the register of type-c force usb2 to usb2 enable. diff --git a/drivers/phy/samsung/Kconfig b/drivers/phy/samsung/Kconfig index 9e483d1fdaf2..e20d2fcc9fe7 100644 --- a/drivers/phy/samsung/Kconfig +++ b/drivers/phy/samsung/Kconfig @@ -3,23 +3,23 @@ # Phy drivers for Samsung platforms # config PHY_EXYNOS_DP_VIDEO - tristate "EXYNOS SoC series Display Port PHY driver" + tristate "Exynos SoC series Display Port PHY driver" depends on OF depends on ARCH_EXYNOS || COMPILE_TEST default ARCH_EXYNOS select GENERIC_PHY help - Support for Display Port PHY found on Samsung EXYNOS SoCs. + Support for Display Port PHY found on Samsung Exynos SoCs. config PHY_EXYNOS_MIPI_VIDEO - tristate "S5P/EXYNOS SoC series MIPI CSI-2/DSI PHY driver" + tristate "S5P/Exynos SoC series MIPI CSI-2/DSI PHY driver" depends on HAS_IOMEM depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST select GENERIC_PHY default y if ARCH_S5PV210 || ARCH_EXYNOS help Support for MIPI CSI-2 and MIPI DSI DPHY found on Samsung S5P - and EXYNOS SoCs. + and Exynos SoCs. config PHY_EXYNOS_PCIE bool "Exynos PCIe PHY driver" @@ -29,6 +29,15 @@ config PHY_EXYNOS_PCIE Enable PCIe PHY support for Exynos SoC series. This driver provides PHY interface for Exynos PCIe controller. +config PHY_SAMSUNG_UFS + tristate "SAMSUNG SoC series UFS PHY driver" + depends on OF && (ARCH_EXYNOS || COMPILE_TEST) + select GENERIC_PHY + help + Enable this to support the Samsung UFS PHY driver for + Samsung SoCs. This driver provides the interface for UFS + host controller to do PHY related programming. + config PHY_SAMSUNG_USB2 tristate "Samsung USB 2.0 PHY driver" depends on HAS_IOMEM diff --git a/drivers/phy/samsung/Makefile b/drivers/phy/samsung/Makefile index db9b1aa0de6e..3959100fe8a2 100644 --- a/drivers/phy/samsung/Makefile +++ b/drivers/phy/samsung/Makefile @@ -2,6 +2,7 @@ obj-$(CONFIG_PHY_EXYNOS_DP_VIDEO) += phy-exynos-dp-video.o obj-$(CONFIG_PHY_EXYNOS_MIPI_VIDEO) += phy-exynos-mipi-video.o obj-$(CONFIG_PHY_EXYNOS_PCIE) += phy-exynos-pcie.o +obj-$(CONFIG_PHY_SAMSUNG_UFS) += phy-samsung-ufs.o obj-$(CONFIG_PHY_SAMSUNG_USB2) += phy-exynos-usb2.o phy-exynos-usb2-y += phy-samsung-usb2.o phy-exynos-usb2-$(CONFIG_PHY_EXYNOS4210_USB2) += phy-exynos4210-usb2.o diff --git a/drivers/phy/samsung/phy-exynos-dp-video.c b/drivers/phy/samsung/phy-exynos-dp-video.c index 6c607df1dc9a..2b670ef91deb 100644 --- a/drivers/phy/samsung/phy-exynos-dp-video.c +++ b/drivers/phy/samsung/phy-exynos-dp-video.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * Samsung EXYNOS SoC series Display Port PHY driver + * Samsung Exynos SoC series Display Port PHY driver * * Copyright (C) 2013 Samsung Electronics Co., Ltd. * Author: Jingoo Han <jg1.han@samsung.com> @@ -115,5 +115,5 @@ static struct platform_driver exynos_dp_video_phy_driver = { module_platform_driver(exynos_dp_video_phy_driver); MODULE_AUTHOR("Jingoo Han <jg1.han@samsung.com>"); -MODULE_DESCRIPTION("Samsung EXYNOS SoC DP PHY driver"); +MODULE_DESCRIPTION("Samsung Exynos SoC DP PHY driver"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/phy/samsung/phy-exynos-mipi-video.c b/drivers/phy/samsung/phy-exynos-mipi-video.c index bb51195f189f..c1df1ef3ee3c 100644 --- a/drivers/phy/samsung/phy-exynos-mipi-video.c +++ b/drivers/phy/samsung/phy-exynos-mipi-video.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * Samsung S5P/EXYNOS SoC series MIPI CSIS/DSIM DPHY driver + * Samsung S5P/Exynos SoC series MIPI CSIS/DSIM DPHY driver * * Copyright (C) 2013,2016 Samsung Electronics Co., Ltd. * Author: Sylwester Nawrocki <s.nawrocki@samsung.com> @@ -364,6 +364,6 @@ static struct platform_driver exynos_mipi_video_phy_driver = { }; module_platform_driver(exynos_mipi_video_phy_driver); -MODULE_DESCRIPTION("Samsung S5P/EXYNOS SoC MIPI CSI-2/DSI PHY driver"); +MODULE_DESCRIPTION("Samsung S5P/Exynos SoC MIPI CSI-2/DSI PHY driver"); MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/phy/samsung/phy-exynos-pcie.c b/drivers/phy/samsung/phy-exynos-pcie.c index 659e7ae0a6cf..7e28b1aea0d1 100644 --- a/drivers/phy/samsung/phy-exynos-pcie.c +++ b/drivers/phy/samsung/phy-exynos-pcie.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * Samsung EXYNOS SoC series PCIe PHY driver + * Samsung Exynos SoC series PCIe PHY driver * * Phy provider for PCIe controller on Exynos SoC series * diff --git a/drivers/phy/samsung/phy-exynos5-usbdrd.c b/drivers/phy/samsung/phy-exynos5-usbdrd.c index e510732afb8b..0d818b77a0d8 100644 --- a/drivers/phy/samsung/phy-exynos5-usbdrd.c +++ b/drivers/phy/samsung/phy-exynos5-usbdrd.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * Samsung EXYNOS5 SoC series USB DRD PHY driver + * Samsung Exynos5 SoC series USB DRD PHY driver * * Phy provider for USB 3.0 DRD controller on Exynos5 SoC series * @@ -33,7 +33,7 @@ #define EXYNOS5_FSEL_24MHZ 0x5 #define EXYNOS5_FSEL_50MHZ 0x7 -/* EXYNOS5: USB 3.0 DRD PHY registers */ +/* Exynos5: USB 3.0 DRD PHY registers */ #define EXYNOS5_DRD_LINKSYSTEM 0x04 #define LINKSYSTEM_FLADJ_MASK (0x3f << 1) @@ -180,14 +180,14 @@ struct exynos5_usbdrd_phy_drvdata { * @utmiclk: clock for utmi+ phy * @itpclk: clock for ITP generation * @drv_data: pointer to SoC level driver data structure - * @phys[]: array for 'EXYNOS5_DRDPHYS_NUM' number of PHY + * @phys: array for 'EXYNOS5_DRDPHYS_NUM' number of PHY * instances each with its 'phy' and 'phy_cfg'. * @extrefclk: frequency select settings when using 'separate * reference clocks' for SS and HS operations * @ref_clk: reference clock to PHY block from which PHY's * operational clocks are derived - * vbus: VBUS regulator for phy - * vbus_boost: Boost regulator for VBUS present on few Exynos boards + * @vbus: VBUS regulator for phy + * @vbus_boost: Boost regulator for VBUS present on few Exynos boards */ struct exynos5_usbdrd_phy { struct device *dev; @@ -714,7 +714,9 @@ static int exynos5_usbdrd_phy_calibrate(struct phy *phy) struct phy_usb_instance *inst = phy_get_drvdata(phy); struct exynos5_usbdrd_phy *phy_drd = to_usbdrd_phy(inst); - return exynos5420_usbdrd_phy_calibrate(phy_drd); + if (inst->phy_cfg->id == EXYNOS5_DRDPHY_UTMI) + return exynos5420_usbdrd_phy_calibrate(phy_drd); + return 0; } static const struct phy_ops exynos5_usbdrd_phy_ops = { @@ -958,7 +960,7 @@ static struct platform_driver exynos5_usb3drd_phy = { }; module_platform_driver(exynos5_usb3drd_phy); -MODULE_DESCRIPTION("Samsung EXYNOS5 SoCs USB 3.0 DRD controller PHY driver"); +MODULE_DESCRIPTION("Samsung Exynos5 SoCs USB 3.0 DRD controller PHY driver"); MODULE_AUTHOR("Vivek Gautam <gautam.vivek@samsung.com>"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:exynos5_usb3drd_phy"); diff --git a/drivers/phy/samsung/phy-exynos7-ufs.h b/drivers/phy/samsung/phy-exynos7-ufs.h new file mode 100644 index 000000000000..518923141958 --- /dev/null +++ b/drivers/phy/samsung/phy-exynos7-ufs.h @@ -0,0 +1,81 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * UFS PHY driver data for Samsung EXYNOS7 SoC + * + * Copyright (C) 2020 Samsung Electronics Co., Ltd. + */ +#ifndef _PHY_EXYNOS7_UFS_H_ +#define _PHY_EXYNOS7_UFS_H_ + +#include "phy-samsung-ufs.h" + +#define EXYNOS7_EMBEDDED_COMBO_PHY_CTRL 0x720 +#define EXYNOS7_EMBEDDED_COMBO_PHY_CTRL_MASK 0x1 +#define EXYNOS7_EMBEDDED_COMBO_PHY_CTRL_EN BIT(0) + +/* Calibration for phy initialization */ +static const struct samsung_ufs_phy_cfg exynos7_pre_init_cfg[] = { + PHY_COMN_REG_CFG(0x00f, 0xfa, PWR_MODE_ANY), + PHY_COMN_REG_CFG(0x010, 0x82, PWR_MODE_ANY), + PHY_COMN_REG_CFG(0x011, 0x1e, PWR_MODE_ANY), + PHY_COMN_REG_CFG(0x017, 0x84, PWR_MODE_ANY), + PHY_TRSV_REG_CFG(0x035, 0x58, PWR_MODE_ANY), + PHY_TRSV_REG_CFG(0x036, 0x32, PWR_MODE_ANY), + PHY_TRSV_REG_CFG(0x037, 0x40, PWR_MODE_ANY), + PHY_TRSV_REG_CFG(0x03b, 0x83, PWR_MODE_ANY), + PHY_TRSV_REG_CFG(0x042, 0x88, PWR_MODE_ANY), + PHY_TRSV_REG_CFG(0x043, 0xa6, PWR_MODE_ANY), + PHY_TRSV_REG_CFG(0x048, 0x74, PWR_MODE_ANY), + PHY_TRSV_REG_CFG(0x04c, 0x5b, PWR_MODE_ANY), + PHY_TRSV_REG_CFG(0x04d, 0x83, PWR_MODE_ANY), + PHY_TRSV_REG_CFG(0x05c, 0x14, PWR_MODE_ANY), + END_UFS_PHY_CFG +}; + +/* Calibration for HS mode series A/B */ +static const struct samsung_ufs_phy_cfg exynos7_pre_pwr_hs_cfg[] = { + PHY_COMN_REG_CFG(0x00f, 0xfa, PWR_MODE_HS_ANY), + PHY_COMN_REG_CFG(0x010, 0x82, PWR_MODE_HS_ANY), + PHY_COMN_REG_CFG(0x011, 0x1e, PWR_MODE_HS_ANY), + /* Setting order: 1st(0x16, 2nd(0x15) */ + PHY_COMN_REG_CFG(0x016, 0xff, PWR_MODE_HS_ANY), + PHY_COMN_REG_CFG(0x015, 0x80, PWR_MODE_HS_ANY), + PHY_COMN_REG_CFG(0x017, 0x94, PWR_MODE_HS_ANY), + PHY_TRSV_REG_CFG(0x036, 0x32, PWR_MODE_HS_ANY), + PHY_TRSV_REG_CFG(0x037, 0x43, PWR_MODE_HS_ANY), + PHY_TRSV_REG_CFG(0x038, 0x3f, PWR_MODE_HS_ANY), + PHY_TRSV_REG_CFG(0x042, 0x88, PWR_MODE_HS_G2_SER_A), + PHY_TRSV_REG_CFG(0x042, 0xbb, PWR_MODE_HS_G2_SER_B), + PHY_TRSV_REG_CFG(0x043, 0xa6, PWR_MODE_HS_ANY), + PHY_TRSV_REG_CFG(0x048, 0x74, PWR_MODE_HS_ANY), + PHY_TRSV_REG_CFG(0x034, 0x35, PWR_MODE_HS_G2_SER_A), + PHY_TRSV_REG_CFG(0x034, 0x36, PWR_MODE_HS_G2_SER_B), + PHY_TRSV_REG_CFG(0x035, 0x5b, PWR_MODE_HS_G2_SER_A), + PHY_TRSV_REG_CFG(0x035, 0x5c, PWR_MODE_HS_G2_SER_B), + END_UFS_PHY_CFG +}; + +/* Calibration for HS mode series A/B atfer PMC */ +static const struct samsung_ufs_phy_cfg exynos7_post_pwr_hs_cfg[] = { + PHY_COMN_REG_CFG(0x015, 0x00, PWR_MODE_HS_ANY), + PHY_TRSV_REG_CFG(0x04d, 0x83, PWR_MODE_HS_ANY), + END_UFS_PHY_CFG +}; + +static const struct samsung_ufs_phy_cfg *exynos7_ufs_phy_cfgs[CFG_TAG_MAX] = { + [CFG_PRE_INIT] = exynos7_pre_init_cfg, + [CFG_PRE_PWR_HS] = exynos7_pre_pwr_hs_cfg, + [CFG_POST_PWR_HS] = exynos7_post_pwr_hs_cfg, +}; + +static struct samsung_ufs_phy_drvdata exynos7_ufs_phy = { + .cfg = exynos7_ufs_phy_cfgs, + .isol = { + .offset = EXYNOS7_EMBEDDED_COMBO_PHY_CTRL, + .mask = EXYNOS7_EMBEDDED_COMBO_PHY_CTRL_MASK, + .en = EXYNOS7_EMBEDDED_COMBO_PHY_CTRL_EN, + }, + .has_symbol_clk = 1, +}; + +#endif /* _PHY_EXYNOS7_UFS_H_ */ diff --git a/drivers/phy/samsung/phy-samsung-ufs.c b/drivers/phy/samsung/phy-samsung-ufs.c new file mode 100644 index 000000000000..9832599a0283 --- /dev/null +++ b/drivers/phy/samsung/phy-samsung-ufs.c @@ -0,0 +1,366 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * UFS PHY driver for Samsung SoC + * + * Copyright (C) 2020 Samsung Electronics Co., Ltd. + * Author: Seungwon Jeon <essuuj@gmail.com> + * Author: Alim Akhtar <alim.akhtar@samsung.com> + * + */ +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/of.h> +#include <linux/io.h> +#include <linux/iopoll.h> +#include <linux/mfd/syscon.h> +#include <linux/module.h> +#include <linux/phy/phy.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> + +#include "phy-samsung-ufs.h" + +#define for_each_phy_lane(phy, i) \ + for (i = 0; i < (phy)->lane_cnt; i++) +#define for_each_phy_cfg(cfg) \ + for (; (cfg)->id; (cfg)++) + +#define PHY_DEF_LANE_CNT 1 + +static void samsung_ufs_phy_config(struct samsung_ufs_phy *phy, + const struct samsung_ufs_phy_cfg *cfg, + u8 lane) +{ + enum {LANE_0, LANE_1}; /* lane index */ + + switch (lane) { + case LANE_0: + writel(cfg->val, (phy)->reg_pma + cfg->off_0); + break; + case LANE_1: + if (cfg->id == PHY_TRSV_BLK) + writel(cfg->val, (phy)->reg_pma + cfg->off_1); + break; + } +} + +static int samsung_ufs_phy_wait_for_lock_acq(struct phy *phy) +{ + struct samsung_ufs_phy *ufs_phy = get_samsung_ufs_phy(phy); + const unsigned int timeout_us = 100000; + const unsigned int sleep_us = 10; + u32 val; + int err; + + err = readl_poll_timeout( + ufs_phy->reg_pma + PHY_APB_ADDR(PHY_PLL_LOCK_STATUS), + val, (val & PHY_PLL_LOCK_BIT), sleep_us, timeout_us); + if (err) { + dev_err(ufs_phy->dev, + "failed to get phy pll lock acquisition %d\n", err); + goto out; + } + + err = readl_poll_timeout( + ufs_phy->reg_pma + PHY_APB_ADDR(PHY_CDR_LOCK_STATUS), + val, (val & PHY_CDR_LOCK_BIT), sleep_us, timeout_us); + if (err) + dev_err(ufs_phy->dev, + "failed to get phy cdr lock acquisition %d\n", err); +out: + return err; +} + +static int samsung_ufs_phy_calibrate(struct phy *phy) +{ + struct samsung_ufs_phy *ufs_phy = get_samsung_ufs_phy(phy); + struct samsung_ufs_phy_cfg **cfgs = ufs_phy->cfg; + const struct samsung_ufs_phy_cfg *cfg; + int err = 0; + int i; + + if (unlikely(ufs_phy->ufs_phy_state < CFG_PRE_INIT || + ufs_phy->ufs_phy_state >= CFG_TAG_MAX)) { + dev_err(ufs_phy->dev, "invalid phy config index %d\n", ufs_phy->ufs_phy_state); + return -EINVAL; + } + + cfg = cfgs[ufs_phy->ufs_phy_state]; + if (!cfg) + goto out; + + for_each_phy_cfg(cfg) { + for_each_phy_lane(ufs_phy, i) { + samsung_ufs_phy_config(ufs_phy, cfg, i); + } + } + + if (ufs_phy->ufs_phy_state == CFG_POST_PWR_HS) + err = samsung_ufs_phy_wait_for_lock_acq(phy); + + /** + * In Samsung ufshci, PHY need to be calibrated at different + * stages / state mainly before Linkstartup, after Linkstartup, + * before power mode change and after power mode change. + * Below state machine to make sure to calibrate PHY in each + * state. Here after configuring PHY in a given state, will + * change the state to next state so that next state phy + * calibration value can be programed + */ +out: + switch (ufs_phy->ufs_phy_state) { + case CFG_PRE_INIT: + ufs_phy->ufs_phy_state = CFG_POST_INIT; + break; + case CFG_POST_INIT: + ufs_phy->ufs_phy_state = CFG_PRE_PWR_HS; + break; + case CFG_PRE_PWR_HS: + ufs_phy->ufs_phy_state = CFG_POST_PWR_HS; + break; + case CFG_POST_PWR_HS: + /* Change back to INIT state */ + ufs_phy->ufs_phy_state = CFG_PRE_INIT; + break; + default: + dev_err(ufs_phy->dev, "wrong state for phy calibration\n"); + } + + return err; +} + +static int samsung_ufs_phy_symbol_clk_init(struct samsung_ufs_phy *phy) +{ + int ret; + + phy->tx0_symbol_clk = devm_clk_get(phy->dev, "tx0_symbol_clk"); + if (IS_ERR(phy->tx0_symbol_clk)) { + dev_err(phy->dev, "failed to get tx0_symbol_clk clock\n"); + return PTR_ERR(phy->tx0_symbol_clk); + } + + phy->rx0_symbol_clk = devm_clk_get(phy->dev, "rx0_symbol_clk"); + if (IS_ERR(phy->rx0_symbol_clk)) { + dev_err(phy->dev, "failed to get rx0_symbol_clk clock\n"); + return PTR_ERR(phy->rx0_symbol_clk); + } + + phy->rx1_symbol_clk = devm_clk_get(phy->dev, "rx1_symbol_clk"); + if (IS_ERR(phy->rx1_symbol_clk)) { + dev_err(phy->dev, "failed to get rx1_symbol_clk clock\n"); + return PTR_ERR(phy->rx1_symbol_clk); + } + + ret = clk_prepare_enable(phy->tx0_symbol_clk); + if (ret) { + dev_err(phy->dev, "%s: tx0_symbol_clk enable failed %d\n", __func__, ret); + goto out; + } + + ret = clk_prepare_enable(phy->rx0_symbol_clk); + if (ret) { + dev_err(phy->dev, "%s: rx0_symbol_clk enable failed %d\n", __func__, ret); + goto out_disable_tx0_clk; + } + + ret = clk_prepare_enable(phy->rx1_symbol_clk); + if (ret) { + dev_err(phy->dev, "%s: rx1_symbol_clk enable failed %d\n", __func__, ret); + goto out_disable_rx0_clk; + } + + return 0; + +out_disable_rx0_clk: + clk_disable_unprepare(phy->rx0_symbol_clk); +out_disable_tx0_clk: + clk_disable_unprepare(phy->tx0_symbol_clk); +out: + return ret; +} + +static int samsung_ufs_phy_clks_init(struct samsung_ufs_phy *phy) +{ + int ret; + + phy->ref_clk = devm_clk_get(phy->dev, "ref_clk"); + if (IS_ERR(phy->ref_clk)) + dev_err(phy->dev, "failed to get ref_clk clock\n"); + + ret = clk_prepare_enable(phy->ref_clk); + if (ret) { + dev_err(phy->dev, "%s: ref_clk enable failed %d\n", __func__, ret); + return ret; + } + + dev_dbg(phy->dev, "UFS MPHY ref_clk_rate = %ld\n", clk_get_rate(phy->ref_clk)); + + return 0; +} + +static int samsung_ufs_phy_init(struct phy *phy) +{ + struct samsung_ufs_phy *ss_phy = get_samsung_ufs_phy(phy); + int ret; + + ss_phy->lane_cnt = phy->attrs.bus_width; + ss_phy->ufs_phy_state = CFG_PRE_INIT; + + if (ss_phy->drvdata->has_symbol_clk) { + ret = samsung_ufs_phy_symbol_clk_init(ss_phy); + if (ret) + dev_err(ss_phy->dev, "failed to set ufs phy symbol clocks\n"); + } + + ret = samsung_ufs_phy_clks_init(ss_phy); + if (ret) + dev_err(ss_phy->dev, "failed to set ufs phy clocks\n"); + + ret = samsung_ufs_phy_calibrate(phy); + if (ret) + dev_err(ss_phy->dev, "ufs phy calibration failed\n"); + + return ret; +} + +static int samsung_ufs_phy_power_on(struct phy *phy) +{ + struct samsung_ufs_phy *ss_phy = get_samsung_ufs_phy(phy); + + samsung_ufs_phy_ctrl_isol(ss_phy, false); + return 0; +} + +static int samsung_ufs_phy_power_off(struct phy *phy) +{ + struct samsung_ufs_phy *ss_phy = get_samsung_ufs_phy(phy); + + samsung_ufs_phy_ctrl_isol(ss_phy, true); + return 0; +} + +static int samsung_ufs_phy_set_mode(struct phy *generic_phy, + enum phy_mode mode, int submode) +{ + struct samsung_ufs_phy *ss_phy = get_samsung_ufs_phy(generic_phy); + + ss_phy->mode = PHY_MODE_INVALID; + + if (mode > 0) + ss_phy->mode = mode; + + return 0; +} + +static int samsung_ufs_phy_exit(struct phy *phy) +{ + struct samsung_ufs_phy *ss_phy = get_samsung_ufs_phy(phy); + + clk_disable_unprepare(ss_phy->ref_clk); + + if (ss_phy->drvdata->has_symbol_clk) { + clk_disable_unprepare(ss_phy->tx0_symbol_clk); + clk_disable_unprepare(ss_phy->rx0_symbol_clk); + clk_disable_unprepare(ss_phy->rx1_symbol_clk); + } + + return 0; +} + +static struct phy_ops samsung_ufs_phy_ops = { + .init = samsung_ufs_phy_init, + .exit = samsung_ufs_phy_exit, + .power_on = samsung_ufs_phy_power_on, + .power_off = samsung_ufs_phy_power_off, + .calibrate = samsung_ufs_phy_calibrate, + .set_mode = samsung_ufs_phy_set_mode, + .owner = THIS_MODULE, +}; + +static const struct of_device_id samsung_ufs_phy_match[]; + +static int samsung_ufs_phy_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + const struct of_device_id *match; + struct samsung_ufs_phy *phy; + struct phy *gen_phy; + struct phy_provider *phy_provider; + const struct samsung_ufs_phy_drvdata *drvdata; + int err = 0; + + match = of_match_node(samsung_ufs_phy_match, dev->of_node); + if (!match) { + err = -EINVAL; + dev_err(dev, "failed to get match_node\n"); + goto out; + } + + phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL); + if (!phy) { + err = -ENOMEM; + goto out; + } + + phy->reg_pma = devm_platform_ioremap_resource_byname(pdev, "phy-pma"); + if (IS_ERR(phy->reg_pma)) { + err = PTR_ERR(phy->reg_pma); + goto out; + } + + phy->reg_pmu = syscon_regmap_lookup_by_phandle( + dev->of_node, "samsung,pmu-syscon"); + if (IS_ERR(phy->reg_pmu)) { + err = PTR_ERR(phy->reg_pmu); + dev_err(dev, "failed syscon remap for pmu\n"); + goto out; + } + + gen_phy = devm_phy_create(dev, NULL, &samsung_ufs_phy_ops); + if (IS_ERR(gen_phy)) { + err = PTR_ERR(gen_phy); + dev_err(dev, "failed to create PHY for ufs-phy\n"); + goto out; + } + + drvdata = match->data; + phy->dev = dev; + phy->drvdata = drvdata; + phy->cfg = (struct samsung_ufs_phy_cfg **)drvdata->cfg; + phy->isol = &drvdata->isol; + phy->lane_cnt = PHY_DEF_LANE_CNT; + + phy_set_drvdata(gen_phy, phy); + + phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); + if (IS_ERR(phy_provider)) { + err = PTR_ERR(phy_provider); + dev_err(dev, "failed to register phy-provider\n"); + goto out; + } +out: + return err; +} + +static const struct of_device_id samsung_ufs_phy_match[] = { + { + .compatible = "samsung,exynos7-ufs-phy", + .data = &exynos7_ufs_phy, + }, + {}, +}; +MODULE_DEVICE_TABLE(of, samsung_ufs_phy_match); + +static struct platform_driver samsung_ufs_phy_driver = { + .probe = samsung_ufs_phy_probe, + .driver = { + .name = "samsung-ufs-phy", + .of_match_table = samsung_ufs_phy_match, + }, +}; +module_platform_driver(samsung_ufs_phy_driver); +MODULE_DESCRIPTION("Samsung SoC UFS PHY Driver"); +MODULE_AUTHOR("Seungwon Jeon <essuuj@gmail.com>"); +MODULE_AUTHOR("Alim Akhtar <alim.akhtar@samsung.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/phy/samsung/phy-samsung-ufs.h b/drivers/phy/samsung/phy-samsung-ufs.h new file mode 100644 index 000000000000..5de78710524c --- /dev/null +++ b/drivers/phy/samsung/phy-samsung-ufs.h @@ -0,0 +1,139 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * UFS PHY driver for Samsung EXYNOS SoC + * + * Copyright (C) 2020 Samsung Electronics Co., Ltd. + * Author: Seungwon Jeon <essuuj@gmail.com> + * Author: Alim Akhtar <alim.akhtar@samsung.com> + * + */ +#ifndef _PHY_SAMSUNG_UFS_ +#define _PHY_SAMSUNG_UFS_ + +#define PHY_COMN_BLK 1 +#define PHY_TRSV_BLK 2 +#define END_UFS_PHY_CFG { 0 } +#define PHY_TRSV_CH_OFFSET 0x30 +#define PHY_APB_ADDR(off) ((off) << 2) + +#define PHY_COMN_REG_CFG(o, v, d) { \ + .off_0 = PHY_APB_ADDR((o)), \ + .off_1 = 0, \ + .val = (v), \ + .desc = (d), \ + .id = PHY_COMN_BLK, \ +} + +#define PHY_TRSV_REG_CFG(o, v, d) { \ + .off_0 = PHY_APB_ADDR((o)), \ + .off_1 = PHY_APB_ADDR((o) + PHY_TRSV_CH_OFFSET), \ + .val = (v), \ + .desc = (d), \ + .id = PHY_TRSV_BLK, \ +} + +/* UFS PHY registers */ +#define PHY_PLL_LOCK_STATUS 0x1e +#define PHY_CDR_LOCK_STATUS 0x5e + +#define PHY_PLL_LOCK_BIT BIT(5) +#define PHY_CDR_LOCK_BIT BIT(4) + +/* description for PHY calibration */ +enum { + /* applicable to any */ + PWR_DESC_ANY = 0, + /* mode */ + PWR_DESC_PWM = 1, + PWR_DESC_HS = 2, + /* series */ + PWR_DESC_SER_A = 1, + PWR_DESC_SER_B = 2, + /* gear */ + PWR_DESC_G1 = 1, + PWR_DESC_G2 = 2, + PWR_DESC_G3 = 3, + /* field mask */ + MD_MASK = 0x3, + SR_MASK = 0x3, + GR_MASK = 0x7, +}; + +#define PWR_MODE_HS_G1_ANY PWR_MODE_HS(PWR_DESC_G1, PWR_DESC_ANY) +#define PWR_MODE_HS_G1_SER_A PWR_MODE_HS(PWR_DESC_G1, PWR_DESC_SER_A) +#define PWR_MODE_HS_G1_SER_B PWR_MODE_HS(PWR_DESC_G1, PWR_DESC_SER_B) +#define PWR_MODE_HS_G2_ANY PWR_MODE_HS(PWR_DESC_G2, PWR_DESC_ANY) +#define PWR_MODE_HS_G2_SER_A PWR_MODE_HS(PWR_DESC_G2, PWR_DESC_SER_A) +#define PWR_MODE_HS_G2_SER_B PWR_MODE_HS(PWR_DESC_G2, PWR_DESC_SER_B) +#define PWR_MODE_HS_G3_ANY PWR_MODE_HS(PWR_DESC_G3, PWR_DESC_ANY) +#define PWR_MODE_HS_G3_SER_A PWR_MODE_HS(PWR_DESC_G3, PWR_DESC_SER_A) +#define PWR_MODE_HS_G3_SER_B PWR_MODE_HS(PWR_DESC_G3, PWR_DESC_SER_B) +#define PWR_MODE(g, s, m) ((((g) & GR_MASK) << 4) |\ + (((s) & SR_MASK) << 2) | ((m) & MD_MASK)) +#define PWR_MODE_PWM_ANY PWR_MODE(PWR_DESC_ANY,\ + PWR_DESC_ANY, PWR_DESC_PWM) +#define PWR_MODE_HS(g, s) ((((g) & GR_MASK) << 4) |\ + (((s) & SR_MASK) << 2) | PWR_DESC_HS) +#define PWR_MODE_HS_ANY PWR_MODE(PWR_DESC_ANY,\ + PWR_DESC_ANY, PWR_DESC_HS) +#define PWR_MODE_ANY PWR_MODE(PWR_DESC_ANY,\ + PWR_DESC_ANY, PWR_DESC_ANY) +/* PHY calibration point/state */ +enum { + CFG_PRE_INIT, + CFG_POST_INIT, + CFG_PRE_PWR_HS, + CFG_POST_PWR_HS, + CFG_TAG_MAX, +}; + +struct samsung_ufs_phy_cfg { + u32 off_0; + u32 off_1; + u32 val; + u8 desc; + u8 id; +}; + +struct samsung_ufs_phy_drvdata { + const struct samsung_ufs_phy_cfg **cfg; + struct pmu_isol { + u32 offset; + u32 mask; + u32 en; + } isol; + bool has_symbol_clk; +}; + +struct samsung_ufs_phy { + struct device *dev; + void __iomem *reg_pma; + struct regmap *reg_pmu; + struct clk *ref_clk; + struct clk *ref_clk_parent; + struct clk *tx0_symbol_clk; + struct clk *rx0_symbol_clk; + struct clk *rx1_symbol_clk; + const struct samsung_ufs_phy_drvdata *drvdata; + struct samsung_ufs_phy_cfg **cfg; + const struct pmu_isol *isol; + u8 lane_cnt; + int ufs_phy_state; + enum phy_mode mode; +}; + +static inline struct samsung_ufs_phy *get_samsung_ufs_phy(struct phy *phy) +{ + return (struct samsung_ufs_phy *)phy_get_drvdata(phy); +} + +static inline void samsung_ufs_phy_ctrl_isol( + struct samsung_ufs_phy *phy, u32 isol) +{ + regmap_update_bits(phy->reg_pmu, phy->isol->offset, + phy->isol->mask, isol ? 0 : phy->isol->en); +} + +#include "phy-exynos7-ufs.h" + +#endif /* _PHY_SAMSUNG_UFS_ */ diff --git a/drivers/phy/samsung/phy-samsung-usb2.c b/drivers/phy/samsung/phy-samsung-usb2.c index 090aa02e02de..a3ed3ff04690 100644 --- a/drivers/phy/samsung/phy-samsung-usb2.c +++ b/drivers/phy/samsung/phy-samsung-usb2.c @@ -255,7 +255,7 @@ static struct platform_driver samsung_usb2_phy_driver = { }; module_platform_driver(samsung_usb2_phy_driver); -MODULE_DESCRIPTION("Samsung S5P/EXYNOS SoC USB PHY driver"); +MODULE_DESCRIPTION("Samsung S5P/Exynos SoC USB PHY driver"); MODULE_AUTHOR("Kamil Debski <k.debski@samsung.com>"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:samsung-usb2-phy"); diff --git a/drivers/phy/st/phy-stm32-usbphyc.c b/drivers/phy/st/phy-stm32-usbphyc.c index 56bdea4b0bd9..2b3639cba51a 100644 --- a/drivers/phy/st/phy-stm32-usbphyc.c +++ b/drivers/phy/st/phy-stm32-usbphyc.c @@ -327,7 +327,7 @@ static int stm32_usbphyc_probe(struct platform_device *pdev) if (IS_ERR(usbphyc->base)) return PTR_ERR(usbphyc->base); - usbphyc->clk = devm_clk_get(dev, 0); + usbphyc->clk = devm_clk_get(dev, NULL); if (IS_ERR(usbphyc->clk)) { ret = PTR_ERR(usbphyc->clk); dev_err(dev, "clk get failed: %d\n", ret); @@ -340,7 +340,7 @@ static int stm32_usbphyc_probe(struct platform_device *pdev) return ret; } - usbphyc->rst = devm_reset_control_get(dev, 0); + usbphyc->rst = devm_reset_control_get(dev, NULL); if (!IS_ERR(usbphyc->rst)) { reset_control_assert(usbphyc->rst); udelay(2); diff --git a/drivers/phy/ti/phy-dm816x-usb.c b/drivers/phy/ti/phy-dm816x-usb.c index 26f194779064..57adc08a89b2 100644 --- a/drivers/phy/ti/phy-dm816x-usb.c +++ b/drivers/phy/ti/phy-dm816x-usb.c @@ -82,17 +82,16 @@ static int dm816x_usb_phy_init(struct phy *x) { struct dm816x_usb_phy *phy = phy_get_drvdata(x); unsigned int val; - int error; if (clk_get_rate(phy->refclk) != 24000000) dev_warn(phy->dev, "nonstandard phy refclk\n"); /* Set PLL ref clock and put phys to sleep */ - error = regmap_update_bits(phy->syscon, phy->usb_ctrl, - DM816X_USB_CTRL_PHYCLKSRC | - DM816X_USB_CTRL_PHYSLEEP1 | - DM816X_USB_CTRL_PHYSLEEP0, - 0); + regmap_update_bits(phy->syscon, phy->usb_ctrl, + DM816X_USB_CTRL_PHYCLKSRC | + DM816X_USB_CTRL_PHYSLEEP1 | + DM816X_USB_CTRL_PHYSLEEP0, + 0); regmap_read(phy->syscon, phy->usb_ctrl, &val); if ((val & 3) != 0) dev_info(phy->dev, diff --git a/drivers/phy/ti/phy-ti-pipe3.c b/drivers/phy/ti/phy-ti-pipe3.c index a87946589eb7..e9332c90f75f 100644 --- a/drivers/phy/ti/phy-ti-pipe3.c +++ b/drivers/phy/ti/phy-ti-pipe3.c @@ -337,7 +337,6 @@ static int ti_pipe3_power_on(struct phy *x) { u32 val; u32 mask; - int ret; unsigned long rate; struct ti_pipe3 *phy = phy_get_drvdata(x); bool rx_pending = false; @@ -355,8 +354,8 @@ static int ti_pipe3_power_on(struct phy *x) rate = rate / 1000000; mask = OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_FREQ_MASK; val = rate << OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_FREQ_SHIFT; - ret = regmap_update_bits(phy->phy_power_syscon, phy->power_reg, - mask, val); + regmap_update_bits(phy->phy_power_syscon, phy->power_reg, + mask, val); /* * For PCIe, TX and RX must be powered on simultaneously. * For USB and SATA, TX must be powered on before RX diff --git a/drivers/phy/xilinx/Kconfig b/drivers/phy/xilinx/Kconfig new file mode 100644 index 000000000000..d8b0d46b2b4d --- /dev/null +++ b/drivers/phy/xilinx/Kconfig @@ -0,0 +1,13 @@ +# SPDX-License-Identifier: GPL-2.0-only + +# +# PHY drivers for Xilinx platforms +# + +config PHY_XILINX_ZYNQMP + tristate "Xilinx ZynqMP PHY driver" + depends on ARCH_ZYNQMP || COMPILE_TEST + select GENERIC_PHY + help + Enable this to support ZynqMP High Speed Gigabit Transceiver + that is part of ZynqMP SoC. diff --git a/drivers/phy/xilinx/Makefile b/drivers/phy/xilinx/Makefile new file mode 100644 index 000000000000..3f1f6a2a9b45 --- /dev/null +++ b/drivers/phy/xilinx/Makefile @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0 + +obj-$(CONFIG_PHY_XILINX_ZYNQMP) += phy-zynqmp.o diff --git a/drivers/phy/xilinx/phy-zynqmp.c b/drivers/phy/xilinx/phy-zynqmp.c new file mode 100644 index 000000000000..2b0f921b6ee3 --- /dev/null +++ b/drivers/phy/xilinx/phy-zynqmp.c @@ -0,0 +1,993 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * phy-zynqmp.c - PHY driver for Xilinx ZynqMP GT. + * + * Copyright (C) 2018-2020 Xilinx Inc. + * + * Author: Anurag Kumar Vulisha <anuragku@xilinx.com> + * Author: Subbaraya Sundeep <sundeep.lkml@gmail.com> + * Author: Laurent Pinchart <laurent.pinchart@ideasonboard.com> + * + * This driver is tested for USB, SATA and Display Port currently. + * Other controllers PCIe and SGMII should also work but that is + * experimental as of now. + */ + +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/phy/phy.h> +#include <linux/platform_device.h> +#include <linux/slab.h> + +#include <dt-bindings/phy/phy.h> + +/* + * Lane Registers + */ + +/* TX De-emphasis parameters */ +#define L0_TX_ANA_TM_18 0x0048 +#define L0_TX_ANA_TM_118 0x01d8 +#define L0_TX_ANA_TM_118_FORCE_17_0 BIT(0) + +/* DN Resistor calibration code parameters */ +#define L0_TXPMA_ST_3 0x0b0c +#define L0_DN_CALIB_CODE 0x3f + +/* PMA control parameters */ +#define L0_TXPMD_TM_45 0x0cb4 +#define L0_TXPMD_TM_48 0x0cc0 +#define L0_TXPMD_TM_45_OVER_DP_MAIN BIT(0) +#define L0_TXPMD_TM_45_ENABLE_DP_MAIN BIT(1) +#define L0_TXPMD_TM_45_OVER_DP_POST1 BIT(2) +#define L0_TXPMD_TM_45_ENABLE_DP_POST1 BIT(3) +#define L0_TXPMD_TM_45_OVER_DP_POST2 BIT(4) +#define L0_TXPMD_TM_45_ENABLE_DP_POST2 BIT(5) + +/* PCS control parameters */ +#define L0_TM_DIG_6 0x106c +#define L0_TM_DIS_DESCRAMBLE_DECODER 0x0f +#define L0_TX_DIG_61 0x00f4 +#define L0_TM_DISABLE_SCRAMBLE_ENCODER 0x0f + +/* PLL Test Mode register parameters */ +#define L0_TM_PLL_DIG_37 0x2094 +#define L0_TM_COARSE_CODE_LIMIT 0x10 + +/* PLL SSC step size offsets */ +#define L0_PLL_SS_STEPS_0_LSB 0x2368 +#define L0_PLL_SS_STEPS_1_MSB 0x236c +#define L0_PLL_SS_STEP_SIZE_0_LSB 0x2370 +#define L0_PLL_SS_STEP_SIZE_1 0x2374 +#define L0_PLL_SS_STEP_SIZE_2 0x2378 +#define L0_PLL_SS_STEP_SIZE_3_MSB 0x237c +#define L0_PLL_STATUS_READ_1 0x23e4 + +/* SSC step size parameters */ +#define STEP_SIZE_0_MASK 0xff +#define STEP_SIZE_1_MASK 0xff +#define STEP_SIZE_2_MASK 0xff +#define STEP_SIZE_3_MASK 0x3 +#define STEP_SIZE_SHIFT 8 +#define FORCE_STEP_SIZE 0x10 +#define FORCE_STEPS 0x20 +#define STEPS_0_MASK 0xff +#define STEPS_1_MASK 0x07 + +/* Reference clock selection parameters */ +#define L0_Ln_REF_CLK_SEL(n) (0x2860 + (n) * 4) +#define L0_REF_CLK_SEL_MASK 0x8f + +/* Calibration digital logic parameters */ +#define L3_TM_CALIB_DIG19 0xec4c +#define L3_CALIB_DONE_STATUS 0xef14 +#define L3_TM_CALIB_DIG18 0xec48 +#define L3_TM_CALIB_DIG19_NSW 0x07 +#define L3_TM_CALIB_DIG18_NSW 0xe0 +#define L3_TM_OVERRIDE_NSW_CODE 0x20 +#define L3_CALIB_DONE 0x02 +#define L3_NSW_SHIFT 5 +#define L3_NSW_PIPE_SHIFT 4 +#define L3_NSW_CALIB_SHIFT 3 + +#define PHY_REG_OFFSET 0x4000 + +/* + * Global Registers + */ + +/* Refclk selection parameters */ +#define PLL_REF_SEL(n) (0x10000 + (n) * 4) +#define PLL_FREQ_MASK 0x1f +#define PLL_STATUS_LOCKED 0x10 + +/* Inter Connect Matrix parameters */ +#define ICM_CFG0 0x10010 +#define ICM_CFG1 0x10014 +#define ICM_CFG0_L0_MASK 0x07 +#define ICM_CFG0_L1_MASK 0x70 +#define ICM_CFG1_L2_MASK 0x07 +#define ICM_CFG2_L3_MASK 0x70 +#define ICM_CFG_SHIFT 4 + +/* Inter Connect Matrix allowed protocols */ +#define ICM_PROTOCOL_PD 0x0 +#define ICM_PROTOCOL_PCIE 0x1 +#define ICM_PROTOCOL_SATA 0x2 +#define ICM_PROTOCOL_USB 0x3 +#define ICM_PROTOCOL_DP 0x4 +#define ICM_PROTOCOL_SGMII 0x5 + +/* Test Mode common reset control parameters */ +#define TM_CMN_RST 0x10018 +#define TM_CMN_RST_EN 0x1 +#define TM_CMN_RST_SET 0x2 +#define TM_CMN_RST_MASK 0x3 + +/* Bus width parameters */ +#define TX_PROT_BUS_WIDTH 0x10040 +#define RX_PROT_BUS_WIDTH 0x10044 +#define PROT_BUS_WIDTH_10 0x0 +#define PROT_BUS_WIDTH_20 0x1 +#define PROT_BUS_WIDTH_40 0x2 +#define PROT_BUS_WIDTH_SHIFT 2 + +/* Number of GT lanes */ +#define NUM_LANES 4 + +/* SIOU SATA control register */ +#define SATA_CONTROL_OFFSET 0x0100 + +/* Total number of controllers */ +#define CONTROLLERS_PER_LANE 5 + +/* Protocol Type parameters */ +#define XPSGTR_TYPE_USB0 0 /* USB controller 0 */ +#define XPSGTR_TYPE_USB1 1 /* USB controller 1 */ +#define XPSGTR_TYPE_SATA_0 2 /* SATA controller lane 0 */ +#define XPSGTR_TYPE_SATA_1 3 /* SATA controller lane 1 */ +#define XPSGTR_TYPE_PCIE_0 4 /* PCIe controller lane 0 */ +#define XPSGTR_TYPE_PCIE_1 5 /* PCIe controller lane 1 */ +#define XPSGTR_TYPE_PCIE_2 6 /* PCIe controller lane 2 */ +#define XPSGTR_TYPE_PCIE_3 7 /* PCIe controller lane 3 */ +#define XPSGTR_TYPE_DP_0 8 /* Display Port controller lane 0 */ +#define XPSGTR_TYPE_DP_1 9 /* Display Port controller lane 1 */ +#define XPSGTR_TYPE_SGMII0 10 /* Ethernet SGMII controller 0 */ +#define XPSGTR_TYPE_SGMII1 11 /* Ethernet SGMII controller 1 */ +#define XPSGTR_TYPE_SGMII2 12 /* Ethernet SGMII controller 2 */ +#define XPSGTR_TYPE_SGMII3 13 /* Ethernet SGMII controller 3 */ + +/* Timeout values */ +#define TIMEOUT_US 1000 + +struct xpsgtr_dev; + +/** + * struct xpsgtr_ssc - structure to hold SSC settings for a lane + * @refclk_rate: PLL reference clock frequency + * @pll_ref_clk: value to be written to register for corresponding ref clk rate + * @steps: number of steps of SSC (Spread Spectrum Clock) + * @step_size: step size of each step + */ +struct xpsgtr_ssc { + u32 refclk_rate; + u8 pll_ref_clk; + u32 steps; + u32 step_size; +}; + +/** + * struct xpsgtr_phy - representation of a lane + * @phy: pointer to the kernel PHY device + * @type: controller which uses this lane + * @lane: lane number + * @protocol: protocol in which the lane operates + * @skip_phy_init: skip phy_init() if true + * @dev: pointer to the xpsgtr_dev instance + * @refclk: reference clock index + */ +struct xpsgtr_phy { + struct phy *phy; + u8 type; + u8 lane; + u8 protocol; + bool skip_phy_init; + struct xpsgtr_dev *dev; + unsigned int refclk; +}; + +/** + * struct xpsgtr_dev - representation of a ZynMP GT device + * @dev: pointer to device + * @serdes: serdes base address + * @siou: siou base address + * @gtr_mutex: mutex for locking + * @phys: PHY lanes + * @refclk_sscs: spread spectrum settings for the reference clocks + * @tx_term_fix: fix for GT issue + * @saved_icm_cfg0: stored value of ICM CFG0 register + * @saved_icm_cfg1: stored value of ICM CFG1 register + */ +struct xpsgtr_dev { + struct device *dev; + void __iomem *serdes; + void __iomem *siou; + struct mutex gtr_mutex; /* mutex for locking */ + struct xpsgtr_phy phys[NUM_LANES]; + const struct xpsgtr_ssc *refclk_sscs[NUM_LANES]; + bool tx_term_fix; + unsigned int saved_icm_cfg0; + unsigned int saved_icm_cfg1; +}; + +/* + * Configuration Data + */ + +/* lookup table to hold all settings needed for a ref clock frequency */ +static const struct xpsgtr_ssc ssc_lookup[] = { + { 19200000, 0x05, 608, 264020 }, + { 20000000, 0x06, 634, 243454 }, + { 24000000, 0x07, 760, 168973 }, + { 26000000, 0x08, 824, 143860 }, + { 27000000, 0x09, 856, 86551 }, + { 38400000, 0x0a, 1218, 65896 }, + { 40000000, 0x0b, 634, 243454 }, + { 52000000, 0x0c, 824, 143860 }, + { 100000000, 0x0d, 1058, 87533 }, + { 108000000, 0x0e, 856, 86551 }, + { 125000000, 0x0f, 992, 119497 }, + { 135000000, 0x10, 1070, 55393 }, + { 150000000, 0x11, 792, 187091 } +}; + +/* + * I/O Accessors + */ + +static inline u32 xpsgtr_read(struct xpsgtr_dev *gtr_dev, u32 reg) +{ + return readl(gtr_dev->serdes + reg); +} + +static inline void xpsgtr_write(struct xpsgtr_dev *gtr_dev, u32 reg, u32 value) +{ + writel(value, gtr_dev->serdes + reg); +} + +static inline void xpsgtr_clr_set(struct xpsgtr_dev *gtr_dev, u32 reg, + u32 clr, u32 set) +{ + u32 value = xpsgtr_read(gtr_dev, reg); + + value &= ~clr; + value |= set; + xpsgtr_write(gtr_dev, reg, value); +} + +static inline u32 xpsgtr_read_phy(struct xpsgtr_phy *gtr_phy, u32 reg) +{ + void __iomem *addr = gtr_phy->dev->serdes + + gtr_phy->lane * PHY_REG_OFFSET + reg; + + return readl(addr); +} + +static inline void xpsgtr_write_phy(struct xpsgtr_phy *gtr_phy, + u32 reg, u32 value) +{ + void __iomem *addr = gtr_phy->dev->serdes + + gtr_phy->lane * PHY_REG_OFFSET + reg; + + writel(value, addr); +} + +static inline void xpsgtr_clr_set_phy(struct xpsgtr_phy *gtr_phy, + u32 reg, u32 clr, u32 set) +{ + void __iomem *addr = gtr_phy->dev->serdes + + gtr_phy->lane * PHY_REG_OFFSET + reg; + + writel((readl(addr) & ~clr) | set, addr); +} + +/* + * Hardware Configuration + */ + +/* Wait for the PLL to lock (with a timeout). */ +static int xpsgtr_wait_pll_lock(struct phy *phy) +{ + struct xpsgtr_phy *gtr_phy = phy_get_drvdata(phy); + struct xpsgtr_dev *gtr_dev = gtr_phy->dev; + unsigned int timeout = TIMEOUT_US; + int ret; + + dev_dbg(gtr_dev->dev, "Waiting for PLL lock\n"); + + while (1) { + u32 reg = xpsgtr_read_phy(gtr_phy, L0_PLL_STATUS_READ_1); + + if ((reg & PLL_STATUS_LOCKED) == PLL_STATUS_LOCKED) { + ret = 0; + break; + } + + if (--timeout == 0) { + ret = -ETIMEDOUT; + break; + } + + udelay(1); + } + + if (ret == -ETIMEDOUT) + dev_err(gtr_dev->dev, + "lane %u (type %u, protocol %u): PLL lock timeout\n", + gtr_phy->lane, gtr_phy->type, gtr_phy->protocol); + + return ret; +} + +/* Configure PLL and spread-sprectrum clock. */ +static void xpsgtr_configure_pll(struct xpsgtr_phy *gtr_phy) +{ + const struct xpsgtr_ssc *ssc; + u32 step_size; + + ssc = gtr_phy->dev->refclk_sscs[gtr_phy->refclk]; + step_size = ssc->step_size; + + xpsgtr_clr_set(gtr_phy->dev, PLL_REF_SEL(gtr_phy->lane), + PLL_FREQ_MASK, ssc->pll_ref_clk); + + /* Enable lane clock sharing, if required */ + if (gtr_phy->refclk != gtr_phy->lane) { + /* Lane3 Ref Clock Selection Register */ + xpsgtr_clr_set(gtr_phy->dev, L0_Ln_REF_CLK_SEL(gtr_phy->lane), + L0_REF_CLK_SEL_MASK, 1 << gtr_phy->refclk); + } + + /* SSC step size [7:0] */ + xpsgtr_clr_set_phy(gtr_phy, L0_PLL_SS_STEP_SIZE_0_LSB, + STEP_SIZE_0_MASK, step_size & STEP_SIZE_0_MASK); + + /* SSC step size [15:8] */ + step_size >>= STEP_SIZE_SHIFT; + xpsgtr_clr_set_phy(gtr_phy, L0_PLL_SS_STEP_SIZE_1, + STEP_SIZE_1_MASK, step_size & STEP_SIZE_1_MASK); + + /* SSC step size [23:16] */ + step_size >>= STEP_SIZE_SHIFT; + xpsgtr_clr_set_phy(gtr_phy, L0_PLL_SS_STEP_SIZE_2, + STEP_SIZE_2_MASK, step_size & STEP_SIZE_2_MASK); + + /* SSC steps [7:0] */ + xpsgtr_clr_set_phy(gtr_phy, L0_PLL_SS_STEPS_0_LSB, + STEPS_0_MASK, ssc->steps & STEPS_0_MASK); + + /* SSC steps [10:8] */ + xpsgtr_clr_set_phy(gtr_phy, L0_PLL_SS_STEPS_1_MSB, + STEPS_1_MASK, + (ssc->steps >> STEP_SIZE_SHIFT) & STEPS_1_MASK); + + /* SSC step size [24:25] */ + step_size >>= STEP_SIZE_SHIFT; + xpsgtr_clr_set_phy(gtr_phy, L0_PLL_SS_STEP_SIZE_3_MSB, + STEP_SIZE_3_MASK, (step_size & STEP_SIZE_3_MASK) | + FORCE_STEP_SIZE | FORCE_STEPS); +} + +/* Configure the lane protocol. */ +static void xpsgtr_lane_set_protocol(struct xpsgtr_phy *gtr_phy) +{ + struct xpsgtr_dev *gtr_dev = gtr_phy->dev; + u8 protocol = gtr_phy->protocol; + + switch (gtr_phy->lane) { + case 0: + xpsgtr_clr_set(gtr_dev, ICM_CFG0, ICM_CFG0_L0_MASK, protocol); + break; + case 1: + xpsgtr_clr_set(gtr_dev, ICM_CFG0, ICM_CFG0_L1_MASK, + protocol << ICM_CFG_SHIFT); + break; + case 2: + xpsgtr_clr_set(gtr_dev, ICM_CFG1, ICM_CFG0_L0_MASK, protocol); + break; + case 3: + xpsgtr_clr_set(gtr_dev, ICM_CFG1, ICM_CFG0_L1_MASK, + protocol << ICM_CFG_SHIFT); + break; + default: + /* We already checked 0 <= lane <= 3 */ + break; + } +} + +/* Bypass (de)scrambler and 8b/10b decoder and encoder. */ +static void xpsgtr_bypass_scrambler_8b10b(struct xpsgtr_phy *gtr_phy) +{ + xpsgtr_write_phy(gtr_phy, L0_TM_DIG_6, L0_TM_DIS_DESCRAMBLE_DECODER); + xpsgtr_write_phy(gtr_phy, L0_TX_DIG_61, L0_TM_DISABLE_SCRAMBLE_ENCODER); +} + +/* DP-specific initialization. */ +static void xpsgtr_phy_init_dp(struct xpsgtr_phy *gtr_phy) +{ + xpsgtr_write_phy(gtr_phy, L0_TXPMD_TM_45, + L0_TXPMD_TM_45_OVER_DP_MAIN | + L0_TXPMD_TM_45_ENABLE_DP_MAIN | + L0_TXPMD_TM_45_OVER_DP_POST1 | + L0_TXPMD_TM_45_OVER_DP_POST2 | + L0_TXPMD_TM_45_ENABLE_DP_POST2); + xpsgtr_write_phy(gtr_phy, L0_TX_ANA_TM_118, + L0_TX_ANA_TM_118_FORCE_17_0); +} + +/* SATA-specific initialization. */ +static void xpsgtr_phy_init_sata(struct xpsgtr_phy *gtr_phy) +{ + struct xpsgtr_dev *gtr_dev = gtr_phy->dev; + + xpsgtr_bypass_scrambler_8b10b(gtr_phy); + + writel(gtr_phy->lane, gtr_dev->siou + SATA_CONTROL_OFFSET); +} + +/* SGMII-specific initialization. */ +static void xpsgtr_phy_init_sgmii(struct xpsgtr_phy *gtr_phy) +{ + struct xpsgtr_dev *gtr_dev = gtr_phy->dev; + + /* Set SGMII protocol TX and RX bus width to 10 bits. */ + xpsgtr_write(gtr_dev, TX_PROT_BUS_WIDTH, + PROT_BUS_WIDTH_10 << (gtr_phy->lane * PROT_BUS_WIDTH_SHIFT)); + xpsgtr_write(gtr_dev, RX_PROT_BUS_WIDTH, + PROT_BUS_WIDTH_10 << (gtr_phy->lane * PROT_BUS_WIDTH_SHIFT)); + + xpsgtr_bypass_scrambler_8b10b(gtr_phy); +} + +/* Configure TX de-emphasis and margining for DP. */ +static void xpsgtr_phy_configure_dp(struct xpsgtr_phy *gtr_phy, unsigned int pre, + unsigned int voltage) +{ + static const u8 voltage_swing[4][4] = { + { 0x2a, 0x27, 0x24, 0x20 }, + { 0x27, 0x23, 0x20, 0xff }, + { 0x24, 0x20, 0xff, 0xff }, + { 0xff, 0xff, 0xff, 0xff } + }; + static const u8 pre_emphasis[4][4] = { + { 0x02, 0x02, 0x02, 0x02 }, + { 0x01, 0x01, 0x01, 0xff }, + { 0x00, 0x00, 0xff, 0xff }, + { 0xff, 0xff, 0xff, 0xff } + }; + + xpsgtr_write_phy(gtr_phy, L0_TXPMD_TM_48, voltage_swing[pre][voltage]); + xpsgtr_write_phy(gtr_phy, L0_TX_ANA_TM_18, pre_emphasis[pre][voltage]); +} + +/* + * PHY Operations + */ + +static bool xpsgtr_phy_init_required(struct xpsgtr_phy *gtr_phy) +{ + /* + * As USB may save the snapshot of the states during hibernation, doing + * phy_init() will put the USB controller into reset, resulting in the + * losing of the saved snapshot. So try to avoid phy_init() for USB + * except when gtr_phy->skip_phy_init is false (this happens when FPD is + * shutdown during suspend or when gt lane is changed from current one) + */ + if (gtr_phy->protocol == ICM_PROTOCOL_USB && gtr_phy->skip_phy_init) + return false; + else + return true; +} + +/* + * There is a functional issue in the GT. The TX termination resistance can be + * out of spec due to a issue in the calibration logic. This is the workaround + * to fix it, required for XCZU9EG silicon. + */ +static int xpsgtr_phy_tx_term_fix(struct xpsgtr_phy *gtr_phy) +{ + struct xpsgtr_dev *gtr_dev = gtr_phy->dev; + u32 timeout = TIMEOUT_US; + u32 nsw; + + /* Enabling Test Mode control for CMN Rest */ + xpsgtr_clr_set(gtr_dev, TM_CMN_RST, TM_CMN_RST_MASK, TM_CMN_RST_SET); + + /* Set Test Mode reset */ + xpsgtr_clr_set(gtr_dev, TM_CMN_RST, TM_CMN_RST_MASK, TM_CMN_RST_EN); + + xpsgtr_write(gtr_dev, L3_TM_CALIB_DIG18, 0x00); + xpsgtr_write(gtr_dev, L3_TM_CALIB_DIG19, L3_TM_OVERRIDE_NSW_CODE); + + /* + * As a part of work around sequence for PMOS calibration fix, + * we need to configure any lane ICM_CFG to valid protocol. This + * will deassert the CMN_Resetn signal. + */ + xpsgtr_lane_set_protocol(gtr_phy); + + /* Clear Test Mode reset */ + xpsgtr_clr_set(gtr_dev, TM_CMN_RST, TM_CMN_RST_MASK, TM_CMN_RST_SET); + + dev_dbg(gtr_dev->dev, "calibrating...\n"); + + do { + u32 reg = xpsgtr_read(gtr_dev, L3_CALIB_DONE_STATUS); + + if ((reg & L3_CALIB_DONE) == L3_CALIB_DONE) + break; + + if (!--timeout) { + dev_err(gtr_dev->dev, "calibration time out\n"); + return -ETIMEDOUT; + } + + udelay(1); + } while (timeout > 0); + + dev_dbg(gtr_dev->dev, "calibration done\n"); + + /* Reading NMOS Register Code */ + nsw = xpsgtr_read(gtr_dev, L0_TXPMA_ST_3) & L0_DN_CALIB_CODE; + + /* Set Test Mode reset */ + xpsgtr_clr_set(gtr_dev, TM_CMN_RST, TM_CMN_RST_MASK, TM_CMN_RST_EN); + + /* Writing NMOS register values back [5:3] */ + xpsgtr_write(gtr_dev, L3_TM_CALIB_DIG19, nsw >> L3_NSW_CALIB_SHIFT); + + /* Writing NMOS register value [2:0] */ + xpsgtr_write(gtr_dev, L3_TM_CALIB_DIG18, + ((nsw & L3_TM_CALIB_DIG19_NSW) << L3_NSW_SHIFT) | + (1 << L3_NSW_PIPE_SHIFT)); + + /* Clear Test Mode reset */ + xpsgtr_clr_set(gtr_dev, TM_CMN_RST, TM_CMN_RST_MASK, TM_CMN_RST_SET); + + return 0; +} + +static int xpsgtr_phy_init(struct phy *phy) +{ + struct xpsgtr_phy *gtr_phy = phy_get_drvdata(phy); + struct xpsgtr_dev *gtr_dev = gtr_phy->dev; + int ret = 0; + + mutex_lock(>r_dev->gtr_mutex); + + /* Skip initialization if not required. */ + if (!xpsgtr_phy_init_required(gtr_phy)) + goto out; + + if (gtr_dev->tx_term_fix) { + ret = xpsgtr_phy_tx_term_fix(gtr_phy); + if (ret < 0) + goto out; + + gtr_dev->tx_term_fix = false; + } + + /* Enable coarse code saturation limiting logic. */ + xpsgtr_write_phy(gtr_phy, L0_TM_PLL_DIG_37, L0_TM_COARSE_CODE_LIMIT); + + /* + * Configure the PLL, the lane protocol, and perform protocol-specific + * initialization. + */ + xpsgtr_configure_pll(gtr_phy); + xpsgtr_lane_set_protocol(gtr_phy); + + switch (gtr_phy->protocol) { + case ICM_PROTOCOL_DP: + xpsgtr_phy_init_dp(gtr_phy); + break; + + case ICM_PROTOCOL_SATA: + xpsgtr_phy_init_sata(gtr_phy); + break; + + case ICM_PROTOCOL_SGMII: + xpsgtr_phy_init_sgmii(gtr_phy); + break; + } + +out: + mutex_unlock(>r_dev->gtr_mutex); + return ret; +} + +static int xpsgtr_phy_exit(struct phy *phy) +{ + struct xpsgtr_phy *gtr_phy = phy_get_drvdata(phy); + + gtr_phy->skip_phy_init = false; + + return 0; +} + +static int xpsgtr_phy_power_on(struct phy *phy) +{ + struct xpsgtr_phy *gtr_phy = phy_get_drvdata(phy); + int ret = 0; + + /* + * Wait for the PLL to lock. For DP, only wait on DP0 to avoid + * cumulating waits for both lanes. The user is expected to initialize + * lane 0 last. + */ + if (gtr_phy->protocol != ICM_PROTOCOL_DP || + gtr_phy->type == XPSGTR_TYPE_DP_0) + ret = xpsgtr_wait_pll_lock(phy); + + return ret; +} + +static int xpsgtr_phy_configure(struct phy *phy, union phy_configure_opts *opts) +{ + struct xpsgtr_phy *gtr_phy = phy_get_drvdata(phy); + + if (gtr_phy->protocol != ICM_PROTOCOL_DP) + return 0; + + xpsgtr_phy_configure_dp(gtr_phy, opts->dp.pre[0], opts->dp.voltage[0]); + + return 0; +} + +static const struct phy_ops xpsgtr_phyops = { + .init = xpsgtr_phy_init, + .exit = xpsgtr_phy_exit, + .power_on = xpsgtr_phy_power_on, + .configure = xpsgtr_phy_configure, + .owner = THIS_MODULE, +}; + +/* + * OF Xlate Support + */ + +/* Set the lane type and protocol based on the PHY type and instance number. */ +static int xpsgtr_set_lane_type(struct xpsgtr_phy *gtr_phy, u8 phy_type, + unsigned int phy_instance) +{ + unsigned int num_phy_types; + const int *phy_types; + + switch (phy_type) { + case PHY_TYPE_SATA: { + static const int types[] = { + XPSGTR_TYPE_SATA_0, + XPSGTR_TYPE_SATA_1, + }; + + phy_types = types; + num_phy_types = ARRAY_SIZE(types); + gtr_phy->protocol = ICM_PROTOCOL_SATA; + break; + } + case PHY_TYPE_USB3: { + static const int types[] = { + XPSGTR_TYPE_USB0, + XPSGTR_TYPE_USB1, + }; + + phy_types = types; + num_phy_types = ARRAY_SIZE(types); + gtr_phy->protocol = ICM_PROTOCOL_USB; + break; + } + case PHY_TYPE_DP: { + static const int types[] = { + XPSGTR_TYPE_DP_0, + XPSGTR_TYPE_DP_1, + }; + + phy_types = types; + num_phy_types = ARRAY_SIZE(types); + gtr_phy->protocol = ICM_PROTOCOL_DP; + break; + } + case PHY_TYPE_PCIE: { + static const int types[] = { + XPSGTR_TYPE_PCIE_0, + XPSGTR_TYPE_PCIE_1, + XPSGTR_TYPE_PCIE_2, + XPSGTR_TYPE_PCIE_3, + }; + + phy_types = types; + num_phy_types = ARRAY_SIZE(types); + gtr_phy->protocol = ICM_PROTOCOL_PCIE; + break; + } + case PHY_TYPE_SGMII: { + static const int types[] = { + XPSGTR_TYPE_SGMII0, + XPSGTR_TYPE_SGMII1, + XPSGTR_TYPE_SGMII2, + XPSGTR_TYPE_SGMII3, + }; + + phy_types = types; + num_phy_types = ARRAY_SIZE(types); + gtr_phy->protocol = ICM_PROTOCOL_SGMII; + break; + } + default: + return -EINVAL; + } + + if (phy_instance >= num_phy_types) + return -EINVAL; + + gtr_phy->type = phy_types[phy_instance]; + return 0; +} + +/* + * Valid combinations of controllers and lanes (Interconnect Matrix). + */ +static const unsigned int icm_matrix[NUM_LANES][CONTROLLERS_PER_LANE] = { + { XPSGTR_TYPE_PCIE_0, XPSGTR_TYPE_SATA_0, XPSGTR_TYPE_USB0, + XPSGTR_TYPE_DP_1, XPSGTR_TYPE_SGMII0 }, + { XPSGTR_TYPE_PCIE_1, XPSGTR_TYPE_SATA_1, XPSGTR_TYPE_USB0, + XPSGTR_TYPE_DP_0, XPSGTR_TYPE_SGMII1 }, + { XPSGTR_TYPE_PCIE_2, XPSGTR_TYPE_SATA_0, XPSGTR_TYPE_USB0, + XPSGTR_TYPE_DP_1, XPSGTR_TYPE_SGMII2 }, + { XPSGTR_TYPE_PCIE_3, XPSGTR_TYPE_SATA_1, XPSGTR_TYPE_USB1, + XPSGTR_TYPE_DP_0, XPSGTR_TYPE_SGMII3 } +}; + +/* Translate OF phandle and args to PHY instance. */ +static struct phy *xpsgtr_xlate(struct device *dev, + struct of_phandle_args *args) +{ + struct xpsgtr_dev *gtr_dev = dev_get_drvdata(dev); + struct xpsgtr_phy *gtr_phy; + unsigned int phy_instance; + unsigned int phy_lane; + unsigned int phy_type; + unsigned int refclk; + unsigned int i; + int ret; + + if (args->args_count != 4) { + dev_err(dev, "Invalid number of cells in 'phy' property\n"); + return ERR_PTR(-EINVAL); + } + + /* + * Get the PHY parameters from the OF arguments and derive the lane + * type. + */ + phy_lane = args->args[0]; + if (phy_lane >= ARRAY_SIZE(gtr_dev->phys)) { + dev_err(dev, "Invalid lane number %u\n", phy_lane); + return ERR_PTR(-ENODEV); + } + + gtr_phy = >r_dev->phys[phy_lane]; + phy_type = args->args[1]; + phy_instance = args->args[2]; + + ret = xpsgtr_set_lane_type(gtr_phy, phy_type, phy_instance); + if (ret < 0) { + dev_err(gtr_dev->dev, "Invalid PHY type and/or instance\n"); + return ERR_PTR(ret); + } + + refclk = args->args[3]; + if (refclk >= ARRAY_SIZE(gtr_dev->refclk_sscs) || + !gtr_dev->refclk_sscs[refclk]) { + dev_err(dev, "Invalid reference clock number %u\n", refclk); + return ERR_PTR(-EINVAL); + } + + gtr_phy->refclk = refclk; + + /* + * Ensure that the Interconnect Matrix is obeyed, i.e a given lane type + * is allowed to operate on the lane. + */ + for (i = 0; i < CONTROLLERS_PER_LANE; i++) { + if (icm_matrix[phy_lane][i] == gtr_phy->type) + return gtr_phy->phy; + } + + return ERR_PTR(-EINVAL); +} + +/* + * Power Management + */ + +static int __maybe_unused xpsgtr_suspend(struct device *dev) +{ + struct xpsgtr_dev *gtr_dev = dev_get_drvdata(dev); + + /* Save the snapshot ICM_CFG registers. */ + gtr_dev->saved_icm_cfg0 = xpsgtr_read(gtr_dev, ICM_CFG0); + gtr_dev->saved_icm_cfg1 = xpsgtr_read(gtr_dev, ICM_CFG1); + + return 0; +} + +static int __maybe_unused xpsgtr_resume(struct device *dev) +{ + struct xpsgtr_dev *gtr_dev = dev_get_drvdata(dev); + unsigned int icm_cfg0, icm_cfg1; + unsigned int i; + bool skip_phy_init; + + icm_cfg0 = xpsgtr_read(gtr_dev, ICM_CFG0); + icm_cfg1 = xpsgtr_read(gtr_dev, ICM_CFG1); + + /* Return if no GT lanes got configured before suspend. */ + if (!gtr_dev->saved_icm_cfg0 && !gtr_dev->saved_icm_cfg1) + return 0; + + /* Check if the ICM configurations changed after suspend. */ + if (icm_cfg0 == gtr_dev->saved_icm_cfg0 && + icm_cfg1 == gtr_dev->saved_icm_cfg1) + skip_phy_init = true; + else + skip_phy_init = false; + + /* Update the skip_phy_init for all gtr_phy instances. */ + for (i = 0; i < ARRAY_SIZE(gtr_dev->phys); i++) + gtr_dev->phys[i].skip_phy_init = skip_phy_init; + + return 0; +} + +static const struct dev_pm_ops xpsgtr_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(xpsgtr_suspend, xpsgtr_resume) +}; + +/* + * Probe & Platform Driver + */ + +static int xpsgtr_get_ref_clocks(struct xpsgtr_dev *gtr_dev) +{ + unsigned int refclk; + + for (refclk = 0; refclk < ARRAY_SIZE(gtr_dev->refclk_sscs); ++refclk) { + unsigned long rate; + unsigned int i; + struct clk *clk; + char name[8]; + + snprintf(name, sizeof(name), "ref%u", refclk); + clk = devm_clk_get_optional(gtr_dev->dev, name); + if (IS_ERR(clk)) { + if (PTR_ERR(clk) != -EPROBE_DEFER) + dev_err(gtr_dev->dev, + "Failed to get reference clock %u: %ld\n", + refclk, PTR_ERR(clk)); + return PTR_ERR(clk); + } + + if (!clk) + continue; + + /* + * Get the spread spectrum (SSC) settings for the reference + * clock rate. + */ + rate = clk_get_rate(clk); + + for (i = 0 ; i < ARRAY_SIZE(ssc_lookup); i++) { + if (rate == ssc_lookup[i].refclk_rate) { + gtr_dev->refclk_sscs[refclk] = &ssc_lookup[i]; + break; + } + } + + if (i == ARRAY_SIZE(ssc_lookup)) { + dev_err(gtr_dev->dev, + "Invalid rate %lu for reference clock %u\n", + rate, refclk); + return -EINVAL; + } + } + + return 0; +} + +static int xpsgtr_probe(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + struct xpsgtr_dev *gtr_dev; + struct phy_provider *provider; + unsigned int port; + int ret; + + gtr_dev = devm_kzalloc(&pdev->dev, sizeof(*gtr_dev), GFP_KERNEL); + if (!gtr_dev) + return -ENOMEM; + + gtr_dev->dev = &pdev->dev; + platform_set_drvdata(pdev, gtr_dev); + + mutex_init(>r_dev->gtr_mutex); + + if (of_device_is_compatible(np, "xlnx,zynqmp-psgtr")) + gtr_dev->tx_term_fix = + of_property_read_bool(np, "xlnx,tx-termination-fix"); + + /* Acquire resources. */ + gtr_dev->serdes = devm_platform_ioremap_resource_byname(pdev, "serdes"); + if (IS_ERR(gtr_dev->serdes)) + return PTR_ERR(gtr_dev->serdes); + + gtr_dev->siou = devm_platform_ioremap_resource_byname(pdev, "siou"); + if (IS_ERR(gtr_dev->siou)) + return PTR_ERR(gtr_dev->siou); + + ret = xpsgtr_get_ref_clocks(gtr_dev); + if (ret) + return ret; + + /* Create PHYs. */ + for (port = 0; port < ARRAY_SIZE(gtr_dev->phys); ++port) { + struct xpsgtr_phy *gtr_phy = >r_dev->phys[port]; + struct phy *phy; + + gtr_phy->lane = port; + gtr_phy->dev = gtr_dev; + + phy = devm_phy_create(&pdev->dev, np, &xpsgtr_phyops); + if (IS_ERR(phy)) { + dev_err(&pdev->dev, "failed to create PHY\n"); + return PTR_ERR(phy); + } + + gtr_phy->phy = phy; + phy_set_drvdata(phy, gtr_phy); + } + + /* Register the PHY provider. */ + provider = devm_of_phy_provider_register(&pdev->dev, xpsgtr_xlate); + if (IS_ERR(provider)) { + dev_err(&pdev->dev, "registering provider failed\n"); + return PTR_ERR(provider); + } + return 0; +} + +static const struct of_device_id xpsgtr_of_match[] = { + { .compatible = "xlnx,zynqmp-psgtr", }, + { .compatible = "xlnx,zynqmp-psgtr-v1.1", }, + {}, +}; +MODULE_DEVICE_TABLE(of, xpsgtr_of_match); + +static struct platform_driver xpsgtr_driver = { + .probe = xpsgtr_probe, + .driver = { + .name = "xilinx-psgtr", + .of_match_table = xpsgtr_of_match, + .pm = &xpsgtr_pm_ops, + }, +}; + +module_platform_driver(xpsgtr_driver); + +MODULE_AUTHOR("Xilinx Inc."); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("Xilinx ZynqMP High speed Gigabit Transceiver"); |