diff options
Diffstat (limited to 'drivers/soc')
27 files changed, 817 insertions, 145 deletions
diff --git a/drivers/soc/amlogic/meson-gx-pwrc-vpu.c b/drivers/soc/amlogic/meson-gx-pwrc-vpu.c index 2bdeebc48901..6289965c42e9 100644 --- a/drivers/soc/amlogic/meson-gx-pwrc-vpu.c +++ b/drivers/soc/amlogic/meson-gx-pwrc-vpu.c @@ -184,7 +184,8 @@ static int meson_gx_pwrc_vpu_probe(struct platform_device *pdev) rstc = devm_reset_control_array_get(&pdev->dev, false, false); if (IS_ERR(rstc)) { - dev_err(&pdev->dev, "failed to get reset lines\n"); + if (PTR_ERR(rstc) != -EPROBE_DEFER) + dev_err(&pdev->dev, "failed to get reset lines\n"); return PTR_ERR(rstc); } @@ -224,7 +225,11 @@ static int meson_gx_pwrc_vpu_probe(struct platform_device *pdev) static void meson_gx_pwrc_vpu_shutdown(struct platform_device *pdev) { - meson_gx_pwrc_vpu_power_off(&vpu_hdmi_pd.genpd); + bool powered_off; + + powered_off = meson_gx_pwrc_vpu_get_power(&vpu_hdmi_pd); + if (!powered_off) + meson_gx_pwrc_vpu_power_off(&vpu_hdmi_pd.genpd); } static const struct of_device_id meson_gx_pwrc_vpu_match_table[] = { diff --git a/drivers/soc/amlogic/meson-gx-socinfo.c b/drivers/soc/amlogic/meson-gx-socinfo.c index f2d8c3c53ea4..37ea0a1c24c8 100644 --- a/drivers/soc/amlogic/meson-gx-socinfo.c +++ b/drivers/soc/amlogic/meson-gx-socinfo.c @@ -33,6 +33,10 @@ static const struct meson_gx_soc_id { { "GXL", 0x21 }, { "GXM", 0x22 }, { "TXL", 0x23 }, + { "TXLX", 0x24 }, + { "AXG", 0x25 }, + { "GXLX", 0x26 }, + { "TXHD", 0x27 }, }; static const struct meson_gx_package_id { @@ -41,12 +45,18 @@ static const struct meson_gx_package_id { unsigned int pack_id; } soc_packages[] = { { "S905", 0x1f, 0 }, + { "S905H", 0x1f, 0x13 }, { "S905M", 0x1f, 0x20 }, { "S905D", 0x21, 0 }, { "S905X", 0x21, 0x80 }, + { "S905W", 0x21, 0xa0 }, { "S905L", 0x21, 0xc0 }, { "S905M2", 0x21, 0xe0 }, { "S912", 0x22, 0 }, + { "962X", 0x24, 0x10 }, + { "962E", 0x24, 0x20 }, + { "A113X", 0x25, 0x37 }, + { "A113D", 0x25, 0x22 }, }; static inline unsigned int socinfo_to_major(u32 socinfo) @@ -97,7 +107,7 @@ static const char *socinfo_to_soc_id(u32 socinfo) return "Unknown"; } -int __init meson_gx_socinfo_init(void) +static int __init meson_gx_socinfo_init(void) { struct soc_device_attribute *soc_dev_attr; struct soc_device *soc_dev; diff --git a/drivers/soc/amlogic/meson-mx-socinfo.c b/drivers/soc/amlogic/meson-mx-socinfo.c index 7bfff5ff22a2..78f0f1aeca57 100644 --- a/drivers/soc/amlogic/meson-mx-socinfo.c +++ b/drivers/soc/amlogic/meson-mx-socinfo.c @@ -104,7 +104,7 @@ static const struct of_device_id meson_mx_socinfo_analog_top_ids[] = { { /* sentinel */ } }; -int __init meson_mx_socinfo_init(void) +static int __init meson_mx_socinfo_init(void) { struct soc_device_attribute *soc_dev_attr; struct soc_device *soc_dev; diff --git a/drivers/soc/imx/gpc.c b/drivers/soc/imx/gpc.c index 750f93197411..c4d35f32af8d 100644 --- a/drivers/soc/imx/gpc.c +++ b/drivers/soc/imx/gpc.c @@ -254,6 +254,7 @@ static struct imx_pm_domain imx_gpc_domains[] = { { .base = { .name = "ARM", + .flags = GENPD_FLAG_ALWAYS_ON, }, }, { .base = { diff --git a/drivers/soc/mediatek/mtk-scpsys.c b/drivers/soc/mediatek/mtk-scpsys.c index 435ce5ec648a..d762a46d434f 100644 --- a/drivers/soc/mediatek/mtk-scpsys.c +++ b/drivers/soc/mediatek/mtk-scpsys.c @@ -24,6 +24,7 @@ #include <dt-bindings/power/mt2712-power.h> #include <dt-bindings/power/mt6797-power.h> #include <dt-bindings/power/mt7622-power.h> +#include <dt-bindings/power/mt7623a-power.h> #include <dt-bindings/power/mt8173-power.h> #define SPM_VDE_PWR_CON 0x0210 @@ -518,7 +519,8 @@ static const struct scp_domain_data scp_domain_data_mt2701[] = { .name = "conn", .sta_mask = PWR_STATUS_CONN, .ctl_offs = SPM_CONN_PWR_CON, - .bus_prot_mask = 0x0104, + .bus_prot_mask = MT2701_TOP_AXI_PROT_EN_CONN_M | + MT2701_TOP_AXI_PROT_EN_CONN_S, .clk_id = {CLK_NONE}, .active_wakeup = true, }, @@ -528,7 +530,7 @@ static const struct scp_domain_data scp_domain_data_mt2701[] = { .ctl_offs = SPM_DIS_PWR_CON, .sram_pdn_bits = GENMASK(11, 8), .clk_id = {CLK_MM}, - .bus_prot_mask = 0x0002, + .bus_prot_mask = MT2701_TOP_AXI_PROT_EN_MM_M0, .active_wakeup = true, }, [MT2701_POWER_DOMAIN_MFG] = { @@ -664,12 +666,48 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = { .name = "mfg", .sta_mask = PWR_STATUS_MFG, .ctl_offs = SPM_MFG_PWR_CON, - .sram_pdn_bits = GENMASK(11, 8), - .sram_pdn_ack_bits = GENMASK(19, 16), + .sram_pdn_bits = GENMASK(8, 8), + .sram_pdn_ack_bits = GENMASK(16, 16), .clk_id = {CLK_MFG}, .bus_prot_mask = BIT(14) | BIT(21) | BIT(23), .active_wakeup = true, }, + [MT2712_POWER_DOMAIN_MFG_SC1] = { + .name = "mfg_sc1", + .sta_mask = BIT(22), + .ctl_offs = 0x02c0, + .sram_pdn_bits = GENMASK(8, 8), + .sram_pdn_ack_bits = GENMASK(16, 16), + .clk_id = {CLK_NONE}, + .active_wakeup = true, + }, + [MT2712_POWER_DOMAIN_MFG_SC2] = { + .name = "mfg_sc2", + .sta_mask = BIT(23), + .ctl_offs = 0x02c4, + .sram_pdn_bits = GENMASK(8, 8), + .sram_pdn_ack_bits = GENMASK(16, 16), + .clk_id = {CLK_NONE}, + .active_wakeup = true, + }, + [MT2712_POWER_DOMAIN_MFG_SC3] = { + .name = "mfg_sc3", + .sta_mask = BIT(30), + .ctl_offs = 0x01f8, + .sram_pdn_bits = GENMASK(8, 8), + .sram_pdn_ack_bits = GENMASK(16, 16), + .clk_id = {CLK_NONE}, + .active_wakeup = true, + }, +}; + +static const struct scp_subdomain scp_subdomain_mt2712[] = { + {MT2712_POWER_DOMAIN_MM, MT2712_POWER_DOMAIN_VDEC}, + {MT2712_POWER_DOMAIN_MM, MT2712_POWER_DOMAIN_VENC}, + {MT2712_POWER_DOMAIN_MM, MT2712_POWER_DOMAIN_ISP}, + {MT2712_POWER_DOMAIN_MFG, MT2712_POWER_DOMAIN_MFG_SC1}, + {MT2712_POWER_DOMAIN_MFG_SC1, MT2712_POWER_DOMAIN_MFG_SC2}, + {MT2712_POWER_DOMAIN_MFG_SC2, MT2712_POWER_DOMAIN_MFG_SC3}, }; /* @@ -794,6 +832,47 @@ static const struct scp_domain_data scp_domain_data_mt7622[] = { }; /* + * MT7623A power domain support + */ + +static const struct scp_domain_data scp_domain_data_mt7623a[] = { + [MT7623A_POWER_DOMAIN_CONN] = { + .name = "conn", + .sta_mask = PWR_STATUS_CONN, + .ctl_offs = SPM_CONN_PWR_CON, + .bus_prot_mask = MT2701_TOP_AXI_PROT_EN_CONN_M | + MT2701_TOP_AXI_PROT_EN_CONN_S, + .clk_id = {CLK_NONE}, + .active_wakeup = true, + }, + [MT7623A_POWER_DOMAIN_ETH] = { + .name = "eth", + .sta_mask = PWR_STATUS_ETH, + .ctl_offs = SPM_ETH_PWR_CON, + .sram_pdn_bits = GENMASK(11, 8), + .sram_pdn_ack_bits = GENMASK(15, 12), + .clk_id = {CLK_ETHIF}, + .active_wakeup = true, + }, + [MT7623A_POWER_DOMAIN_HIF] = { + .name = "hif", + .sta_mask = PWR_STATUS_HIF, + .ctl_offs = SPM_HIF_PWR_CON, + .sram_pdn_bits = GENMASK(11, 8), + .sram_pdn_ack_bits = GENMASK(15, 12), + .clk_id = {CLK_ETHIF}, + .active_wakeup = true, + }, + [MT7623A_POWER_DOMAIN_IFR_MSC] = { + .name = "ifr_msc", + .sta_mask = PWR_STATUS_IFR_MSC, + .ctl_offs = SPM_IFR_MSC_PWR_CON, + .clk_id = {CLK_NONE}, + .active_wakeup = true, + }, +}; + +/* * MT8173 power domain support */ @@ -905,6 +984,8 @@ static const struct scp_soc_data mt2701_data = { static const struct scp_soc_data mt2712_data = { .domains = scp_domain_data_mt2712, .num_domains = ARRAY_SIZE(scp_domain_data_mt2712), + .subdomains = scp_subdomain_mt2712, + .num_subdomains = ARRAY_SIZE(scp_subdomain_mt2712), .regs = { .pwr_sta_offs = SPM_PWR_STATUS, .pwr_sta2nd_offs = SPM_PWR_STATUS_2ND @@ -934,6 +1015,16 @@ static const struct scp_soc_data mt7622_data = { .bus_prot_reg_update = true, }; +static const struct scp_soc_data mt7623a_data = { + .domains = scp_domain_data_mt7623a, + .num_domains = ARRAY_SIZE(scp_domain_data_mt7623a), + .regs = { + .pwr_sta_offs = SPM_PWR_STATUS, + .pwr_sta2nd_offs = SPM_PWR_STATUS_2ND + }, + .bus_prot_reg_update = true, +}; + static const struct scp_soc_data mt8173_data = { .domains = scp_domain_data_mt8173, .num_domains = ARRAY_SIZE(scp_domain_data_mt8173), @@ -964,6 +1055,9 @@ static const struct of_device_id of_scpsys_match_tbl[] = { .compatible = "mediatek,mt7622-scpsys", .data = &mt7622_data, }, { + .compatible = "mediatek,mt7623a-scpsys", + .data = &mt7623a_data, + }, { .compatible = "mediatek,mt8173-scpsys", .data = &mt8173_data, }, { @@ -992,7 +1086,7 @@ static int scpsys_probe(struct platform_device *pdev) pd_data = &scp->pd_data; - for (i = 0, sd = soc->subdomains ; i < soc->num_subdomains ; i++) { + for (i = 0, sd = soc->subdomains; i < soc->num_subdomains; i++, sd++) { ret = pm_genpd_add_subdomain(pd_data->domains[sd->origin], pd_data->domains[sd->subdomain]); if (ret && IS_ENABLED(CONFIG_PM)) diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig index e050eb83341d..5c4535b545cc 100644 --- a/drivers/soc/qcom/Kconfig +++ b/drivers/soc/qcom/Kconfig @@ -37,7 +37,7 @@ config QCOM_PM config QCOM_QMI_HELPERS tristate - depends on ARCH_QCOM + depends on ARCH_QCOM && NET help Helper library for handling QMI encoded messages. QMI encoded messages are used in communication between the majority of QRTR @@ -47,6 +47,7 @@ config QCOM_QMI_HELPERS config QCOM_RMTFS_MEM tristate "Qualcomm Remote Filesystem memory driver" depends on ARCH_QCOM + select QCOM_SCM help The Qualcomm remote filesystem memory driver is used for allocating and exposing regions of shared memory with remote processors for the diff --git a/drivers/soc/qcom/mdt_loader.c b/drivers/soc/qcom/mdt_loader.c index 08bd8549242a..17b314d9a148 100644 --- a/drivers/soc/qcom/mdt_loader.c +++ b/drivers/soc/qcom/mdt_loader.c @@ -83,12 +83,14 @@ EXPORT_SYMBOL_GPL(qcom_mdt_get_size); * @mem_region: allocated memory region to load firmware into * @mem_phys: physical address of allocated memory region * @mem_size: size of the allocated memory region + * @reloc_base: adjusted physical address after relocation * * Returns 0 on success, negative errno otherwise. */ int qcom_mdt_load(struct device *dev, const struct firmware *fw, const char *firmware, int pas_id, void *mem_region, - phys_addr_t mem_phys, size_t mem_size) + phys_addr_t mem_phys, size_t mem_size, + phys_addr_t *reloc_base) { const struct elf32_phdr *phdrs; const struct elf32_phdr *phdr; @@ -192,6 +194,9 @@ int qcom_mdt_load(struct device *dev, const struct firmware *fw, memset(ptr + phdr->p_filesz, 0, phdr->p_memsz - phdr->p_filesz); } + if (reloc_base) + *reloc_base = mem_reloc; + out: kfree(fw_name); diff --git a/drivers/soc/qcom/rmtfs_mem.c b/drivers/soc/qcom/rmtfs_mem.c index 0a43b2e8906f..c8999e38b005 100644 --- a/drivers/soc/qcom/rmtfs_mem.c +++ b/drivers/soc/qcom/rmtfs_mem.c @@ -37,6 +37,8 @@ struct qcom_rmtfs_mem { phys_addr_t size; unsigned int client_id; + + unsigned int perms; }; static ssize_t qcom_rmtfs_mem_show(struct device *dev, @@ -151,9 +153,11 @@ static void qcom_rmtfs_mem_release_device(struct device *dev) static int qcom_rmtfs_mem_probe(struct platform_device *pdev) { struct device_node *node = pdev->dev.of_node; + struct qcom_scm_vmperm perms[2]; struct reserved_mem *rmem; struct qcom_rmtfs_mem *rmtfs_mem; u32 client_id; + u32 vmid; int ret; rmem = of_reserved_mem_lookup(node); @@ -204,10 +208,31 @@ static int qcom_rmtfs_mem_probe(struct platform_device *pdev) rmtfs_mem->dev.release = qcom_rmtfs_mem_release_device; + ret = of_property_read_u32(node, "qcom,vmid", &vmid); + if (ret < 0 && ret != -EINVAL) { + dev_err(&pdev->dev, "failed to parse qcom,vmid\n"); + goto remove_cdev; + } else if (!ret) { + perms[0].vmid = QCOM_SCM_VMID_HLOS; + perms[0].perm = QCOM_SCM_PERM_RW; + perms[1].vmid = vmid; + perms[1].perm = QCOM_SCM_PERM_RW; + + rmtfs_mem->perms = BIT(QCOM_SCM_VMID_HLOS); + ret = qcom_scm_assign_mem(rmtfs_mem->addr, rmtfs_mem->size, + &rmtfs_mem->perms, perms, 2); + if (ret < 0) { + dev_err(&pdev->dev, "assign memory failed\n"); + goto remove_cdev; + } + } + dev_set_drvdata(&pdev->dev, rmtfs_mem); return 0; +remove_cdev: + cdev_device_del(&rmtfs_mem->cdev, &rmtfs_mem->dev); put_device: put_device(&rmtfs_mem->dev); @@ -217,6 +242,15 @@ put_device: static int qcom_rmtfs_mem_remove(struct platform_device *pdev) { struct qcom_rmtfs_mem *rmtfs_mem = dev_get_drvdata(&pdev->dev); + struct qcom_scm_vmperm perm; + + if (rmtfs_mem->perms) { + perm.vmid = QCOM_SCM_VMID_HLOS; + perm.perm = QCOM_SCM_PERM_RW; + + qcom_scm_assign_mem(rmtfs_mem->addr, rmtfs_mem->size, + &rmtfs_mem->perms, &perm, 1); + } cdev_device_del(&rmtfs_mem->cdev, &rmtfs_mem->dev); put_device(&rmtfs_mem->dev); diff --git a/drivers/soc/qcom/wcnss_ctrl.c b/drivers/soc/qcom/wcnss_ctrl.c index d008e5b82db4..df3ccb30bc2d 100644 --- a/drivers/soc/qcom/wcnss_ctrl.c +++ b/drivers/soc/qcom/wcnss_ctrl.c @@ -249,7 +249,7 @@ static int wcnss_download_nv(struct wcnss_ctrl *wcnss, bool *expect_cbc) /* Increment for next fragment */ req->seq++; - data += req->hdr.len; + data += NV_FRAGMENT_SIZE; left -= NV_FRAGMENT_SIZE; } while (left > 0); diff --git a/drivers/soc/renesas/Kconfig b/drivers/soc/renesas/Kconfig index 09550b1da56d..3bbe6114a420 100644 --- a/drivers/soc/renesas/Kconfig +++ b/drivers/soc/renesas/Kconfig @@ -3,8 +3,8 @@ config SOC_RENESAS default y if ARCH_RENESAS select SOC_BUS select RST_RCAR if ARCH_RCAR_GEN1 || ARCH_RCAR_GEN2 || \ - ARCH_R8A7795 || ARCH_R8A7796 || ARCH_R8A77970 || \ - ARCH_R8A77995 + ARCH_R8A7795 || ARCH_R8A7796 || ARCH_R8A77965 || \ + ARCH_R8A77970 || ARCH_R8A77980 || ARCH_R8A77995 select SYSC_R8A7743 if ARCH_R8A7743 select SYSC_R8A7745 if ARCH_R8A7745 select SYSC_R8A7779 if ARCH_R8A7779 @@ -14,7 +14,9 @@ config SOC_RENESAS select SYSC_R8A7794 if ARCH_R8A7794 select SYSC_R8A7795 if ARCH_R8A7795 select SYSC_R8A7796 if ARCH_R8A7796 + select SYSC_R8A77965 if ARCH_R8A77965 select SYSC_R8A77970 if ARCH_R8A77970 + select SYSC_R8A77980 if ARCH_R8A77980 select SYSC_R8A77995 if ARCH_R8A77995 if SOC_RENESAS @@ -56,10 +58,18 @@ config SYSC_R8A7796 bool "R-Car M3-W System Controller support" if COMPILE_TEST select SYSC_RCAR +config SYSC_R8A77965 + bool "R-Car M3-N System Controller support" if COMPILE_TEST + select SYSC_RCAR + config SYSC_R8A77970 bool "R-Car V3M System Controller support" if COMPILE_TEST select SYSC_RCAR +config SYSC_R8A77980 + bool "R-Car V3H System Controller support" if COMPILE_TEST + select SYSC_RCAR + config SYSC_R8A77995 bool "R-Car D3 System Controller support" if COMPILE_TEST select SYSC_RCAR diff --git a/drivers/soc/renesas/Makefile b/drivers/soc/renesas/Makefile index 845d62a08ce1..ccb5ec57a262 100644 --- a/drivers/soc/renesas/Makefile +++ b/drivers/soc/renesas/Makefile @@ -12,7 +12,9 @@ obj-$(CONFIG_SYSC_R8A7792) += r8a7792-sysc.o obj-$(CONFIG_SYSC_R8A7794) += r8a7794-sysc.o obj-$(CONFIG_SYSC_R8A7795) += r8a7795-sysc.o obj-$(CONFIG_SYSC_R8A7796) += r8a7796-sysc.o +obj-$(CONFIG_SYSC_R8A77965) += r8a77965-sysc.o obj-$(CONFIG_SYSC_R8A77970) += r8a77970-sysc.o +obj-$(CONFIG_SYSC_R8A77980) += r8a77980-sysc.o obj-$(CONFIG_SYSC_R8A77995) += r8a77995-sysc.o # Family diff --git a/drivers/soc/renesas/r8a77965-sysc.c b/drivers/soc/renesas/r8a77965-sysc.c new file mode 100644 index 000000000000..d7f7928e3c07 --- /dev/null +++ b/drivers/soc/renesas/r8a77965-sysc.c @@ -0,0 +1,37 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Renesas R-Car M3-N System Controller + * Copyright (C) 2018 Jacopo Mondi <jacopo+renesas@jmondi.org> + * + * Based on Renesas R-Car M3-W System Controller + * Copyright (C) 2016 Glider bvba + */ + +#include <linux/bug.h> +#include <linux/kernel.h> + +#include <dt-bindings/power/r8a77965-sysc.h> + +#include "rcar-sysc.h" + +static const struct rcar_sysc_area r8a77965_areas[] __initconst = { + { "always-on", 0, 0, R8A77965_PD_ALWAYS_ON, -1, PD_ALWAYS_ON }, + { "ca57-scu", 0x1c0, 0, R8A77965_PD_CA57_SCU, R8A77965_PD_ALWAYS_ON, + PD_SCU }, + { "ca57-cpu0", 0x80, 0, R8A77965_PD_CA57_CPU0, R8A77965_PD_CA57_SCU, + PD_CPU_NOCR }, + { "ca57-cpu1", 0x80, 1, R8A77965_PD_CA57_CPU1, R8A77965_PD_CA57_SCU, + PD_CPU_NOCR }, + { "cr7", 0x240, 0, R8A77965_PD_CR7, R8A77965_PD_ALWAYS_ON }, + { "a3vc", 0x380, 0, R8A77965_PD_A3VC, R8A77965_PD_ALWAYS_ON }, + { "a3vp", 0x340, 0, R8A77965_PD_A3VP, R8A77965_PD_ALWAYS_ON }, + { "a2vc1", 0x3c0, 1, R8A77965_PD_A2VC1, R8A77965_PD_A3VC }, + { "3dg-a", 0x100, 0, R8A77965_PD_3DG_A, R8A77965_PD_ALWAYS_ON }, + { "3dg-b", 0x100, 1, R8A77965_PD_3DG_B, R8A77965_PD_3DG_A }, + { "a3ir", 0x180, 0, R8A77965_PD_A3IR, R8A77965_PD_ALWAYS_ON }, +}; + +const struct rcar_sysc_info r8a77965_sysc_info __initconst = { + .areas = r8a77965_areas, + .num_areas = ARRAY_SIZE(r8a77965_areas), +}; diff --git a/drivers/soc/renesas/r8a77970-sysc.c b/drivers/soc/renesas/r8a77970-sysc.c index 8c614164718e..caf894f193ed 100644 --- a/drivers/soc/renesas/r8a77970-sysc.c +++ b/drivers/soc/renesas/r8a77970-sysc.c @@ -25,12 +25,12 @@ static const struct rcar_sysc_area r8a77970_areas[] __initconst = { PD_CPU_NOCR }, { "cr7", 0x240, 0, R8A77970_PD_CR7, R8A77970_PD_ALWAYS_ON }, { "a3ir", 0x180, 0, R8A77970_PD_A3IR, R8A77970_PD_ALWAYS_ON }, - { "a2ir0", 0x400, 0, R8A77970_PD_A2IR0, R8A77970_PD_ALWAYS_ON }, - { "a2ir1", 0x400, 1, R8A77970_PD_A2IR1, R8A77970_PD_A2IR0 }, - { "a2ir2", 0x400, 2, R8A77970_PD_A2IR2, R8A77970_PD_A2IR0 }, - { "a2ir3", 0x400, 3, R8A77970_PD_A2IR3, R8A77970_PD_A2IR0 }, - { "a2sc0", 0x400, 4, R8A77970_PD_A2SC0, R8A77970_PD_ALWAYS_ON }, - { "a2sc1", 0x400, 5, R8A77970_PD_A2SC1, R8A77970_PD_A2SC0 }, + { "a2ir0", 0x400, 0, R8A77970_PD_A2IR0, R8A77970_PD_A3IR }, + { "a2ir1", 0x400, 1, R8A77970_PD_A2IR1, R8A77970_PD_A3IR }, + { "a2ir2", 0x400, 2, R8A77970_PD_A2IR2, R8A77970_PD_A3IR }, + { "a2ir3", 0x400, 3, R8A77970_PD_A2IR3, R8A77970_PD_A3IR }, + { "a2sc0", 0x400, 4, R8A77970_PD_A2SC0, R8A77970_PD_A3IR }, + { "a2sc1", 0x400, 5, R8A77970_PD_A2SC1, R8A77970_PD_A3IR }, }; const struct rcar_sysc_info r8a77970_sysc_info __initconst = { diff --git a/drivers/soc/renesas/r8a77980-sysc.c b/drivers/soc/renesas/r8a77980-sysc.c new file mode 100644 index 000000000000..9265fb525ef3 --- /dev/null +++ b/drivers/soc/renesas/r8a77980-sysc.c @@ -0,0 +1,52 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Renesas R-Car V3H System Controller + * + * Copyright (C) 2018 Renesas Electronics Corp. + * Copyright (C) 2018 Cogent Embedded, Inc. + */ + +#include <linux/bug.h> +#include <linux/kernel.h> + +#include <dt-bindings/power/r8a77980-sysc.h> + +#include "rcar-sysc.h" + +static const struct rcar_sysc_area r8a77980_areas[] __initconst = { + { "always-on", 0, 0, R8A77980_PD_ALWAYS_ON, -1, PD_ALWAYS_ON }, + { "ca53-scu", 0x140, 0, R8A77980_PD_CA53_SCU, R8A77980_PD_ALWAYS_ON, + PD_SCU }, + { "ca53-cpu0", 0x200, 0, R8A77980_PD_CA53_CPU0, R8A77980_PD_CA53_SCU, + PD_CPU_NOCR }, + { "ca53-cpu1", 0x200, 1, R8A77980_PD_CA53_CPU1, R8A77980_PD_CA53_SCU, + PD_CPU_NOCR }, + { "ca53-cpu2", 0x200, 2, R8A77980_PD_CA53_CPU2, R8A77980_PD_CA53_SCU, + PD_CPU_NOCR }, + { "ca53-cpu3", 0x200, 3, R8A77980_PD_CA53_CPU3, R8A77980_PD_CA53_SCU, + PD_CPU_NOCR }, + { "cr7", 0x240, 0, R8A77980_PD_CR7, R8A77980_PD_ALWAYS_ON }, + { "a3ir", 0x180, 0, R8A77980_PD_A3IR, R8A77980_PD_ALWAYS_ON }, + { "a2ir0", 0x400, 0, R8A77980_PD_A2IR0, R8A77980_PD_A3IR }, + { "a2ir1", 0x400, 1, R8A77980_PD_A2IR1, R8A77980_PD_A3IR }, + { "a2ir2", 0x400, 2, R8A77980_PD_A2IR2, R8A77980_PD_A3IR }, + { "a2ir3", 0x400, 3, R8A77980_PD_A2IR3, R8A77980_PD_A3IR }, + { "a2ir4", 0x400, 4, R8A77980_PD_A2IR4, R8A77980_PD_A3IR }, + { "a2ir5", 0x400, 5, R8A77980_PD_A2IR5, R8A77980_PD_A3IR }, + { "a2sc0", 0x400, 6, R8A77980_PD_A2SC0, R8A77980_PD_A3IR }, + { "a2sc1", 0x400, 7, R8A77980_PD_A2SC1, R8A77980_PD_A3IR }, + { "a2sc2", 0x400, 8, R8A77980_PD_A2SC2, R8A77980_PD_A3IR }, + { "a2sc3", 0x400, 9, R8A77980_PD_A2SC3, R8A77980_PD_A3IR }, + { "a2sc4", 0x400, 10, R8A77980_PD_A2SC4, R8A77980_PD_A3IR }, + { "a2pd0", 0x400, 11, R8A77980_PD_A2PD0, R8A77980_PD_A3IR }, + { "a2pd1", 0x400, 12, R8A77980_PD_A2PD1, R8A77980_PD_A3IR }, + { "a2cn", 0x400, 13, R8A77980_PD_A2CN, R8A77980_PD_A3IR }, + { "a3vip", 0x2c0, 0, R8A77980_PD_A3VIP, R8A77980_PD_ALWAYS_ON }, + { "a3vip1", 0x300, 0, R8A77980_PD_A3VIP1, R8A77980_PD_A3VIP }, + { "a3vip2", 0x280, 0, R8A77980_PD_A3VIP2, R8A77980_PD_A3VIP }, +}; + +const struct rcar_sysc_info r8a77980_sysc_info __initconst = { + .areas = r8a77980_areas, + .num_areas = ARRAY_SIZE(r8a77980_areas), +}; diff --git a/drivers/soc/renesas/rcar-rst.c b/drivers/soc/renesas/rcar-rst.c index 3316b028f231..8e9cb7996ab0 100644 --- a/drivers/soc/renesas/rcar-rst.c +++ b/drivers/soc/renesas/rcar-rst.c @@ -13,8 +13,18 @@ #include <linux/of_address.h> #include <linux/soc/renesas/rcar-rst.h> +#define WDTRSTCR_RESET 0xA55A0002 +#define WDTRSTCR 0x0054 + +static int rcar_rst_enable_wdt_reset(void __iomem *base) +{ + iowrite32(WDTRSTCR_RESET, base + WDTRSTCR); + return 0; +} + struct rst_config { - unsigned int modemr; /* Mode Monitoring Register Offset */ + unsigned int modemr; /* Mode Monitoring Register Offset */ + int (*configure)(void *base); /* Platform specific configuration */ }; static const struct rst_config rcar_rst_gen1 __initconst = { @@ -23,6 +33,11 @@ static const struct rst_config rcar_rst_gen1 __initconst = { static const struct rst_config rcar_rst_gen2 __initconst = { .modemr = 0x60, + .configure = rcar_rst_enable_wdt_reset, +}; + +static const struct rst_config rcar_rst_gen3 __initconst = { + .modemr = 0x60, }; static const struct of_device_id rcar_rst_matches[] __initconst = { @@ -38,11 +53,13 @@ static const struct of_device_id rcar_rst_matches[] __initconst = { { .compatible = "renesas,r8a7792-rst", .data = &rcar_rst_gen2 }, { .compatible = "renesas,r8a7793-rst", .data = &rcar_rst_gen2 }, { .compatible = "renesas,r8a7794-rst", .data = &rcar_rst_gen2 }, - /* R-Car Gen3 is handled like R-Car Gen2 */ - { .compatible = "renesas,r8a7795-rst", .data = &rcar_rst_gen2 }, - { .compatible = "renesas,r8a7796-rst", .data = &rcar_rst_gen2 }, - { .compatible = "renesas,r8a77970-rst", .data = &rcar_rst_gen2 }, - { .compatible = "renesas,r8a77995-rst", .data = &rcar_rst_gen2 }, + /* R-Car Gen3 */ + { .compatible = "renesas,r8a7795-rst", .data = &rcar_rst_gen3 }, + { .compatible = "renesas,r8a7796-rst", .data = &rcar_rst_gen3 }, + { .compatible = "renesas,r8a77965-rst", .data = &rcar_rst_gen3 }, + { .compatible = "renesas,r8a77970-rst", .data = &rcar_rst_gen3 }, + { .compatible = "renesas,r8a77980-rst", .data = &rcar_rst_gen3 }, + { .compatible = "renesas,r8a77995-rst", .data = &rcar_rst_gen3 }, { /* sentinel */ } }; @@ -71,6 +88,14 @@ static int __init rcar_rst_init(void) rcar_rst_base = base; cfg = match->data; saved_mode = ioread32(base + cfg->modemr); + if (cfg->configure) { + error = cfg->configure(base); + if (error) { + pr_warn("%pOF: Cannot run SoC specific configuration\n", + np); + goto out_put; + } + } pr_debug("%pOF: MODE = 0x%08x\n", np, saved_mode); diff --git a/drivers/soc/renesas/rcar-sysc.c b/drivers/soc/renesas/rcar-sysc.c index 52c25a5e2646..faf20e719361 100644 --- a/drivers/soc/renesas/rcar-sysc.c +++ b/drivers/soc/renesas/rcar-sysc.c @@ -254,7 +254,7 @@ finalize: pm_genpd_init(genpd, gov, false); } -static const struct of_device_id rcar_sysc_matches[] = { +static const struct of_device_id rcar_sysc_matches[] __initconst = { #ifdef CONFIG_SYSC_R8A7743 { .compatible = "renesas,r8a7743-sysc", .data = &r8a7743_sysc_info }, #endif @@ -284,9 +284,15 @@ static const struct of_device_id rcar_sysc_matches[] = { #ifdef CONFIG_SYSC_R8A7796 { .compatible = "renesas,r8a7796-sysc", .data = &r8a7796_sysc_info }, #endif +#ifdef CONFIG_SYSC_R8A77965 + { .compatible = "renesas,r8a77965-sysc", .data = &r8a77965_sysc_info }, +#endif #ifdef CONFIG_SYSC_R8A77970 { .compatible = "renesas,r8a77970-sysc", .data = &r8a77970_sysc_info }, #endif +#ifdef CONFIG_SYSC_R8A77980 + { .compatible = "renesas,r8a77980-sysc", .data = &r8a77980_sysc_info }, +#endif #ifdef CONFIG_SYSC_R8A77995 { .compatible = "renesas,r8a77995-sysc", .data = &r8a77995_sysc_info }, #endif diff --git a/drivers/soc/renesas/rcar-sysc.h b/drivers/soc/renesas/rcar-sysc.h index 9d9daf9eb91b..dcdc9ec8eba7 100644 --- a/drivers/soc/renesas/rcar-sysc.h +++ b/drivers/soc/renesas/rcar-sysc.h @@ -58,7 +58,9 @@ extern const struct rcar_sysc_info r8a7792_sysc_info; extern const struct rcar_sysc_info r8a7794_sysc_info; extern const struct rcar_sysc_info r8a7795_sysc_info; extern const struct rcar_sysc_info r8a7796_sysc_info; +extern const struct rcar_sysc_info r8a77965_sysc_info; extern const struct rcar_sysc_info r8a77970_sysc_info; +extern const struct rcar_sysc_info r8a77980_sysc_info; extern const struct rcar_sysc_info r8a77995_sysc_info; diff --git a/drivers/soc/renesas/renesas-soc.c b/drivers/soc/renesas/renesas-soc.c index 926b7fd6db2d..ea71c413c926 100644 --- a/drivers/soc/renesas/renesas-soc.c +++ b/drivers/soc/renesas/renesas-soc.c @@ -144,11 +144,21 @@ static const struct renesas_soc soc_rcar_m3_w __initconst __maybe_unused = { .id = 0x52, }; +static const struct renesas_soc soc_rcar_m3_n __initconst __maybe_unused = { + .family = &fam_rcar_gen3, + .id = 0x55, +}; + static const struct renesas_soc soc_rcar_v3m __initconst __maybe_unused = { .family = &fam_rcar_gen3, .id = 0x54, }; +static const struct renesas_soc soc_rcar_v3h __initconst __maybe_unused = { + .family = &fam_rcar_gen3, + .id = 0x56, +}; + static const struct renesas_soc soc_rcar_d3 __initconst __maybe_unused = { .family = &fam_rcar_gen3, .id = 0x58, @@ -209,9 +219,15 @@ static const struct of_device_id renesas_socs[] __initconst = { #ifdef CONFIG_ARCH_R8A7796 { .compatible = "renesas,r8a7796", .data = &soc_rcar_m3_w }, #endif +#ifdef CONFIG_ARCH_R8A77965 + { .compatible = "renesas,r8a77965", .data = &soc_rcar_m3_n }, +#endif #ifdef CONFIG_ARCH_R8A77970 { .compatible = "renesas,r8a77970", .data = &soc_rcar_v3m }, #endif +#ifdef CONFIG_ARCH_R8A77980 + { .compatible = "renesas,r8a77980", .data = &soc_rcar_v3h }, +#endif #ifdef CONFIG_ARCH_R8A77995 { .compatible = "renesas,r8a77995", .data = &soc_rcar_d3 }, #endif diff --git a/drivers/soc/rockchip/grf.c b/drivers/soc/rockchip/grf.c index 15e71fd6c513..96882ffde67e 100644 --- a/drivers/soc/rockchip/grf.c +++ b/drivers/soc/rockchip/grf.c @@ -43,6 +43,28 @@ static const struct rockchip_grf_info rk3036_grf __initconst = { .num_values = ARRAY_SIZE(rk3036_defaults), }; +#define RK3128_GRF_SOC_CON0 0x140 + +static const struct rockchip_grf_value rk3128_defaults[] __initconst = { + { "jtag switching", RK3128_GRF_SOC_CON0, HIWORD_UPDATE(0, 1, 8) }, +}; + +static const struct rockchip_grf_info rk3128_grf __initconst = { + .values = rk3128_defaults, + .num_values = ARRAY_SIZE(rk3128_defaults), +}; + +#define RK3228_GRF_SOC_CON6 0x418 + +static const struct rockchip_grf_value rk3228_defaults[] __initconst = { + { "jtag switching", RK3228_GRF_SOC_CON6, HIWORD_UPDATE(0, 1, 8) }, +}; + +static const struct rockchip_grf_info rk3228_grf __initconst = { + .values = rk3228_defaults, + .num_values = ARRAY_SIZE(rk3228_defaults), +}; + #define RK3288_GRF_SOC_CON0 0x244 static const struct rockchip_grf_value rk3288_defaults[] __initconst = { @@ -92,6 +114,12 @@ static const struct of_device_id rockchip_grf_dt_match[] __initconst = { .compatible = "rockchip,rk3036-grf", .data = (void *)&rk3036_grf, }, { + .compatible = "rockchip,rk3128-grf", + .data = (void *)&rk3128_grf, + }, { + .compatible = "rockchip,rk3228-grf", + .data = (void *)&rk3228_grf, + }, { .compatible = "rockchip,rk3288-grf", .data = (void *)&rk3288_grf, }, { diff --git a/drivers/soc/rockchip/pm_domains.c b/drivers/soc/rockchip/pm_domains.c index 5c342167b9db..53efc386b1ad 100644 --- a/drivers/soc/rockchip/pm_domains.c +++ b/drivers/soc/rockchip/pm_domains.c @@ -67,7 +67,7 @@ struct rockchip_pm_domain { struct regmap **qos_regmap; u32 *qos_save_regs[MAX_QOS_REGS_NUM]; int num_clks; - struct clk *clks[]; + struct clk_bulk_data *clks; }; struct rockchip_pmu { @@ -274,13 +274,18 @@ static void rockchip_do_pmu_set_power_domain(struct rockchip_pm_domain *pd, static int rockchip_pd_power(struct rockchip_pm_domain *pd, bool power_on) { - int i; + struct rockchip_pmu *pmu = pd->pmu; + int ret; - mutex_lock(&pd->pmu->mutex); + mutex_lock(&pmu->mutex); if (rockchip_pmu_domain_is_on(pd) != power_on) { - for (i = 0; i < pd->num_clks; i++) - clk_enable(pd->clks[i]); + ret = clk_bulk_enable(pd->num_clks, pd->clks); + if (ret < 0) { + dev_err(pmu->dev, "failed to enable clocks\n"); + mutex_unlock(&pmu->mutex); + return ret; + } if (!power_on) { rockchip_pmu_save_qos(pd); @@ -298,11 +303,10 @@ static int rockchip_pd_power(struct rockchip_pm_domain *pd, bool power_on) rockchip_pmu_restore_qos(pd); } - for (i = pd->num_clks - 1; i >= 0; i--) - clk_disable(pd->clks[i]); + clk_bulk_disable(pd->num_clks, pd->clks); } - mutex_unlock(&pd->pmu->mutex); + mutex_unlock(&pmu->mutex); return 0; } @@ -364,8 +368,6 @@ static int rockchip_pm_add_one_domain(struct rockchip_pmu *pmu, const struct rockchip_domain_info *pd_info; struct rockchip_pm_domain *pd; struct device_node *qos_node; - struct clk *clk; - int clk_cnt; int i, j; u32 id; int error; @@ -391,41 +393,41 @@ static int rockchip_pm_add_one_domain(struct rockchip_pmu *pmu, return -EINVAL; } - clk_cnt = of_count_phandle_with_args(node, "clocks", "#clock-cells"); - pd = devm_kzalloc(pmu->dev, - sizeof(*pd) + clk_cnt * sizeof(pd->clks[0]), - GFP_KERNEL); + pd = devm_kzalloc(pmu->dev, sizeof(*pd), GFP_KERNEL); if (!pd) return -ENOMEM; pd->info = pd_info; pd->pmu = pmu; - for (i = 0; i < clk_cnt; i++) { - clk = of_clk_get(node, i); - if (IS_ERR(clk)) { - error = PTR_ERR(clk); + pd->num_clks = of_count_phandle_with_args(node, "clocks", + "#clock-cells"); + if (pd->num_clks > 0) { + pd->clks = devm_kcalloc(pmu->dev, pd->num_clks, + sizeof(*pd->clks), GFP_KERNEL); + if (!pd->clks) + return -ENOMEM; + } else { + dev_dbg(pmu->dev, "%s: doesn't have clocks: %d\n", + node->name, pd->num_clks); + pd->num_clks = 0; + } + + for (i = 0; i < pd->num_clks; i++) { + pd->clks[i].clk = of_clk_get(node, i); + if (IS_ERR(pd->clks[i].clk)) { + error = PTR_ERR(pd->clks[i].clk); dev_err(pmu->dev, "%s: failed to get clk at index %d: %d\n", node->name, i, error); - goto err_out; - } - - error = clk_prepare(clk); - if (error) { - dev_err(pmu->dev, - "%s: failed to prepare clk %pC (index %d): %d\n", - node->name, clk, i, error); - clk_put(clk); - goto err_out; + return error; } - - pd->clks[pd->num_clks++] = clk; - - dev_dbg(pmu->dev, "added clock '%pC' to domain '%s'\n", - clk, node->name); } + error = clk_bulk_prepare(pd->num_clks, pd->clks); + if (error) + goto err_put_clocks; + pd->num_qos = of_count_phandle_with_args(node, "pm_qos", NULL); @@ -435,7 +437,7 @@ static int rockchip_pm_add_one_domain(struct rockchip_pmu *pmu, GFP_KERNEL); if (!pd->qos_regmap) { error = -ENOMEM; - goto err_out; + goto err_unprepare_clocks; } for (j = 0; j < MAX_QOS_REGS_NUM; j++) { @@ -445,7 +447,7 @@ static int rockchip_pm_add_one_domain(struct rockchip_pmu *pmu, GFP_KERNEL); if (!pd->qos_save_regs[j]) { error = -ENOMEM; - goto err_out; + goto err_unprepare_clocks; } } @@ -453,13 +455,13 @@ static int rockchip_pm_add_one_domain(struct rockchip_pmu *pmu, qos_node = of_parse_phandle(node, "pm_qos", j); if (!qos_node) { error = -ENODEV; - goto err_out; + goto err_unprepare_clocks; } pd->qos_regmap[j] = syscon_node_to_regmap(qos_node); if (IS_ERR(pd->qos_regmap[j])) { error = -ENODEV; of_node_put(qos_node); - goto err_out; + goto err_unprepare_clocks; } of_node_put(qos_node); } @@ -470,7 +472,7 @@ static int rockchip_pm_add_one_domain(struct rockchip_pmu *pmu, dev_err(pmu->dev, "failed to power on domain '%s': %d\n", node->name, error); - goto err_out; + goto err_unprepare_clocks; } pd->genpd.name = node->name; @@ -486,17 +488,16 @@ static int rockchip_pm_add_one_domain(struct rockchip_pmu *pmu, pmu->genpd_data.domains[id] = &pd->genpd; return 0; -err_out: - while (--i >= 0) { - clk_unprepare(pd->clks[i]); - clk_put(pd->clks[i]); - } +err_unprepare_clocks: + clk_bulk_unprepare(pd->num_clks, pd->clks); +err_put_clocks: + clk_bulk_put(pd->num_clks, pd->clks); return error; } static void rockchip_pm_remove_one_domain(struct rockchip_pm_domain *pd) { - int i, ret; + int ret; /* * We're in the error cleanup already, so we only complain, @@ -507,10 +508,8 @@ static void rockchip_pm_remove_one_domain(struct rockchip_pm_domain *pd) dev_err(pd->pmu->dev, "failed to remove domain '%s' : %d - state may be inconsistent\n", pd->genpd.name, ret); - for (i = 0; i < pd->num_clks; i++) { - clk_unprepare(pd->clks[i]); - clk_put(pd->clks[i]); - } + clk_bulk_unprepare(pd->num_clks, pd->clks); + clk_bulk_put(pd->num_clks, pd->clks); /* protect the zeroing of pm->num_clks */ mutex_lock(&pd->pmu->mutex); diff --git a/drivers/soc/samsung/exynos-pmu.c b/drivers/soc/samsung/exynos-pmu.c index f56adbd9fb8b..d34ca201b8b7 100644 --- a/drivers/soc/samsung/exynos-pmu.c +++ b/drivers/soc/samsung/exynos-pmu.c @@ -85,10 +85,14 @@ static const struct of_device_id exynos_pmu_of_device_ids[] = { .compatible = "samsung,exynos5250-pmu", .data = exynos_pmu_data_arm_ptr(exynos5250_pmu_data), }, { + .compatible = "samsung,exynos5410-pmu", + }, { .compatible = "samsung,exynos5420-pmu", .data = exynos_pmu_data_arm_ptr(exynos5420_pmu_data), }, { .compatible = "samsung,exynos5433-pmu", + }, { + .compatible = "samsung,exynos7-pmu", }, { /*sentinel*/ }, }; @@ -126,6 +130,9 @@ static int exynos_pmu_probe(struct platform_device *pdev) platform_set_drvdata(pdev, pmu_context); + if (devm_of_platform_populate(dev)) + dev_err(dev, "Error populating children, reboot and poweroff might not work properly\n"); + dev_dbg(dev, "Exynos PMU Driver probe done\n"); return 0; } diff --git a/drivers/soc/samsung/pm_domains.c b/drivers/soc/samsung/pm_domains.c index b6a436594a19..caf45cf7aa8e 100644 --- a/drivers/soc/samsung/pm_domains.c +++ b/drivers/soc/samsung/pm_domains.c @@ -147,6 +147,12 @@ static __init const char *exynos_get_domain_name(struct device_node *node) return kstrdup_const(name, GFP_KERNEL); } +static const char *soc_force_no_clk[] = { + "samsung,exynos5250-clock", + "samsung,exynos5420-clock", + "samsung,exynos5800-clock", +}; + static __init int exynos4_pm_init_power_domain(void) { struct device_node *np; @@ -183,6 +189,11 @@ static __init int exynos4_pm_init_power_domain(void) pd->pd.power_on = exynos_pd_power_on; pd->local_pwr_cfg = pm_domain_cfg->local_pwr_cfg; + for (i = 0; i < ARRAY_SIZE(soc_force_no_clk); i++) + if (of_find_compatible_node(NULL, NULL, + soc_force_no_clk[i])) + goto no_clk; + for (i = 0; i < MAX_CLK_PER_DOMAIN; i++) { char clk_name[8]; diff --git a/drivers/soc/tegra/Kconfig b/drivers/soc/tegra/Kconfig index 89ebe22a3e27..fe4481676da6 100644 --- a/drivers/soc/tegra/Kconfig +++ b/drivers/soc/tegra/Kconfig @@ -104,6 +104,16 @@ config ARCH_TEGRA_186_SOC multi-format support, ISP for image capture processing and BPMP for power management. +config ARCH_TEGRA_194_SOC + bool "NVIDIA Tegra194 SoC" + select MAILBOX + select TEGRA_BPMP + select TEGRA_HSP_MBOX + select TEGRA_IVC + select SOC_TEGRA_PMC + help + Enable support for the NVIDIA Tegra194 SoC. + endif endif diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index ce62a47a6647..d9fcdb592b39 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -127,8 +127,7 @@ struct tegra_powergate { unsigned int id; struct clk **clks; unsigned int num_clks; - struct reset_control **resets; - unsigned int num_resets; + struct reset_control *reset; }; struct tegra_io_pad_soc { @@ -153,6 +152,7 @@ struct tegra_pmc_soc { bool has_tsense_reset; bool has_gpu_clamps; + bool needs_mbist_war; const struct tegra_io_pad_soc *io_pads; unsigned int num_io_pads; @@ -368,31 +368,8 @@ out: return err; } -static int tegra_powergate_reset_assert(struct tegra_powergate *pg) +int __weak tegra210_clk_handle_mbist_war(unsigned int id) { - unsigned int i; - int err; - - for (i = 0; i < pg->num_resets; i++) { - err = reset_control_assert(pg->resets[i]); - if (err) - return err; - } - - return 0; -} - -static int tegra_powergate_reset_deassert(struct tegra_powergate *pg) -{ - unsigned int i; - int err; - - for (i = 0; i < pg->num_resets; i++) { - err = reset_control_deassert(pg->resets[i]); - if (err) - return err; - } - return 0; } @@ -401,7 +378,7 @@ static int tegra_powergate_power_up(struct tegra_powergate *pg, { int err; - err = tegra_powergate_reset_assert(pg); + err = reset_control_assert(pg->reset); if (err) return err; @@ -425,12 +402,17 @@ static int tegra_powergate_power_up(struct tegra_powergate *pg, usleep_range(10, 20); - err = tegra_powergate_reset_deassert(pg); + err = reset_control_deassert(pg->reset); if (err) goto powergate_off; usleep_range(10, 20); + if (pg->pmc->soc->needs_mbist_war) + err = tegra210_clk_handle_mbist_war(pg->id); + if (err) + goto disable_clks; + if (disable_clocks) tegra_powergate_disable_clocks(pg); @@ -456,7 +438,7 @@ static int tegra_powergate_power_down(struct tegra_powergate *pg) usleep_range(10, 20); - err = tegra_powergate_reset_assert(pg); + err = reset_control_assert(pg->reset); if (err) goto disable_clks; @@ -475,7 +457,7 @@ static int tegra_powergate_power_down(struct tegra_powergate *pg) assert_resets: tegra_powergate_enable_clocks(pg); usleep_range(10, 20); - tegra_powergate_reset_deassert(pg); + reset_control_deassert(pg->reset); usleep_range(10, 20); disable_clks: @@ -586,8 +568,8 @@ int tegra_powergate_sequence_power_up(unsigned int id, struct clk *clk, pg.id = id; pg.clks = &clk; pg.num_clks = 1; - pg.resets = &rst; - pg.num_resets = 1; + pg.reset = rst; + pg.pmc = pmc; err = tegra_powergate_power_up(&pg, false); if (err) @@ -775,45 +757,22 @@ err: static int tegra_powergate_of_get_resets(struct tegra_powergate *pg, struct device_node *np, bool off) { - struct reset_control *rst; - unsigned int i, count; int err; - count = of_count_phandle_with_args(np, "resets", "#reset-cells"); - if (count == 0) - return -ENODEV; - - pg->resets = kcalloc(count, sizeof(rst), GFP_KERNEL); - if (!pg->resets) - return -ENOMEM; - - for (i = 0; i < count; i++) { - pg->resets[i] = of_reset_control_get_by_index(np, i); - if (IS_ERR(pg->resets[i])) { - err = PTR_ERR(pg->resets[i]); - goto error; - } - - if (off) - err = reset_control_assert(pg->resets[i]); - else - err = reset_control_deassert(pg->resets[i]); - - if (err) { - reset_control_put(pg->resets[i]); - goto error; - } + pg->reset = of_reset_control_array_get_exclusive(np); + if (IS_ERR(pg->reset)) { + err = PTR_ERR(pg->reset); + pr_err("failed to get device resets: %d\n", err); + return err; } - pg->num_resets = count; - - return 0; - -error: - while (i--) - reset_control_put(pg->resets[i]); + if (off) + err = reset_control_assert(pg->reset); + else + err = reset_control_deassert(pg->reset); - kfree(pg->resets); + if (err) + reset_control_put(pg->reset); return err; } @@ -905,10 +864,7 @@ remove_genpd: pm_genpd_remove(&pg->genpd); remove_resets: - while (pg->num_resets--) - reset_control_put(pg->resets[pg->num_resets]); - - kfree(pg->resets); + reset_control_put(pg->reset); remove_clks: while (pg->num_clks--) @@ -1815,6 +1771,7 @@ static const struct tegra_pmc_soc tegra210_pmc_soc = { .cpu_powergates = tegra210_cpu_powergates, .has_tsense_reset = true, .has_gpu_clamps = true, + .needs_mbist_war = true, .num_io_pads = ARRAY_SIZE(tegra210_io_pads), .io_pads = tegra210_io_pads, .regs = &tegra20_pmc_regs, @@ -1920,6 +1877,7 @@ static const struct tegra_pmc_soc tegra186_pmc_soc = { }; static const struct of_device_id tegra_pmc_match[] = { + { .compatible = "nvidia,tegra194-pmc", .data = &tegra186_pmc_soc }, { .compatible = "nvidia,tegra186-pmc", .data = &tegra186_pmc_soc }, { .compatible = "nvidia,tegra210-pmc", .data = &tegra210_pmc_soc }, { .compatible = "nvidia,tegra132-pmc", .data = &tegra124_pmc_soc }, diff --git a/drivers/soc/ti/Kconfig b/drivers/soc/ti/Kconfig index 39e152abe6b9..92770d84a288 100644 --- a/drivers/soc/ti/Kconfig +++ b/drivers/soc/ti/Kconfig @@ -28,6 +28,15 @@ config KEYSTONE_NAVIGATOR_DMA If unsure, say N. +config AMX3_PM + tristate "AMx3 Power Management" + depends on SOC_AM33XX || SOC_AM43XX + depends on WKUP_M3_IPC && TI_EMIF_SRAM && SRAM + help + Enable power management on AM335x and AM437x. Required for suspend to mem + and standby states on both AM335x and AM437x platforms and for deeper cpuidle + c-states on AM335x. + config WKUP_M3_IPC tristate "TI AMx3 Wkup-M3 IPC Driver" depends on WKUP_M3_RPROC diff --git a/drivers/soc/ti/Makefile b/drivers/soc/ti/Makefile index 8e205287f120..a22edc0b258a 100644 --- a/drivers/soc/ti/Makefile +++ b/drivers/soc/ti/Makefile @@ -5,5 +5,6 @@ obj-$(CONFIG_KEYSTONE_NAVIGATOR_QMSS) += knav_qmss.o knav_qmss-y := knav_qmss_queue.o knav_qmss_acc.o obj-$(CONFIG_KEYSTONE_NAVIGATOR_DMA) += knav_dma.o +obj-$(CONFIG_AMX3_PM) += pm33xx.o obj-$(CONFIG_WKUP_M3_IPC) += wkup_m3_ipc.o obj-$(CONFIG_TI_SCI_PM_DOMAINS) += ti_sci_pm_domains.o diff --git a/drivers/soc/ti/pm33xx.c b/drivers/soc/ti/pm33xx.c new file mode 100644 index 000000000000..652739c7f718 --- /dev/null +++ b/drivers/soc/ti/pm33xx.c @@ -0,0 +1,349 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * AM33XX Power Management Routines + * + * Copyright (C) 2012-2018 Texas Instruments Incorporated - http://www.ti.com/ + * Vaibhav Bedia, Dave Gerlach + */ + +#include <linux/cpu.h> +#include <linux/err.h> +#include <linux/genalloc.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_data/pm33xx.h> +#include <linux/platform_device.h> +#include <linux/sizes.h> +#include <linux/sram.h> +#include <linux/suspend.h> +#include <linux/ti-emif-sram.h> +#include <linux/wkup_m3_ipc.h> + +#include <asm/proc-fns.h> +#include <asm/suspend.h> +#include <asm/system_misc.h> + +#define AMX3_PM_SRAM_SYMBOL_OFFSET(sym) ((unsigned long)(sym) - \ + (unsigned long)pm_sram->do_wfi) + +static int (*am33xx_do_wfi_sram)(unsigned long unused); +static phys_addr_t am33xx_do_wfi_sram_phys; + +static struct gen_pool *sram_pool, *sram_pool_data; +static unsigned long ocmcram_location, ocmcram_location_data; + +static struct am33xx_pm_platform_data *pm_ops; +static struct am33xx_pm_sram_addr *pm_sram; + +static struct device *pm33xx_dev; +static struct wkup_m3_ipc *m3_ipc; + +static u32 sram_suspend_address(unsigned long addr) +{ + return ((unsigned long)am33xx_do_wfi_sram + + AMX3_PM_SRAM_SYMBOL_OFFSET(addr)); +} + +#ifdef CONFIG_SUSPEND +static int am33xx_pm_suspend(suspend_state_t suspend_state) +{ + int i, ret = 0; + + ret = pm_ops->soc_suspend((unsigned long)suspend_state, + am33xx_do_wfi_sram); + + if (ret) { + dev_err(pm33xx_dev, "PM: Kernel suspend failure\n"); + } else { + i = m3_ipc->ops->request_pm_status(m3_ipc); + + switch (i) { + case 0: + dev_info(pm33xx_dev, + "PM: Successfully put all powerdomains to target state\n"); + break; + case 1: + dev_err(pm33xx_dev, + "PM: Could not transition all powerdomains to target state\n"); + ret = -1; + break; + default: + dev_err(pm33xx_dev, + "PM: CM3 returned unknown result = %d\n", i); + ret = -1; + } + } + + return ret; +} + +static int am33xx_pm_enter(suspend_state_t suspend_state) +{ + int ret = 0; + + switch (suspend_state) { + case PM_SUSPEND_MEM: + case PM_SUSPEND_STANDBY: + ret = am33xx_pm_suspend(suspend_state); + break; + default: + ret = -EINVAL; + } + + return ret; +} + +static int am33xx_pm_begin(suspend_state_t state) +{ + int ret = -EINVAL; + + switch (state) { + case PM_SUSPEND_MEM: + ret = m3_ipc->ops->prepare_low_power(m3_ipc, WKUP_M3_DEEPSLEEP); + break; + case PM_SUSPEND_STANDBY: + ret = m3_ipc->ops->prepare_low_power(m3_ipc, WKUP_M3_STANDBY); + break; + } + + return ret; +} + +static void am33xx_pm_end(void) +{ + m3_ipc->ops->finish_low_power(m3_ipc); +} + +static int am33xx_pm_valid(suspend_state_t state) +{ + switch (state) { + case PM_SUSPEND_STANDBY: + case PM_SUSPEND_MEM: + return 1; + default: + return 0; + } +} + +static const struct platform_suspend_ops am33xx_pm_ops = { + .begin = am33xx_pm_begin, + .end = am33xx_pm_end, + .enter = am33xx_pm_enter, + .valid = am33xx_pm_valid, +}; +#endif /* CONFIG_SUSPEND */ + +static void am33xx_pm_set_ipc_ops(void) +{ + u32 resume_address; + int temp; + + temp = ti_emif_get_mem_type(); + if (temp < 0) { + dev_err(pm33xx_dev, "PM: Cannot determine memory type, no PM available\n"); + return; + } + m3_ipc->ops->set_mem_type(m3_ipc, temp); + + /* Physical resume address to be used by ROM code */ + resume_address = am33xx_do_wfi_sram_phys + + *pm_sram->resume_offset + 0x4; + + m3_ipc->ops->set_resume_address(m3_ipc, (void *)resume_address); +} + +static void am33xx_pm_free_sram(void) +{ + gen_pool_free(sram_pool, ocmcram_location, *pm_sram->do_wfi_sz); + gen_pool_free(sram_pool_data, ocmcram_location_data, + sizeof(struct am33xx_pm_ro_sram_data)); +} + +/* + * Push the minimal suspend-resume code to SRAM + */ +static int am33xx_pm_alloc_sram(void) +{ + struct device_node *np; + int ret = 0; + + np = of_find_compatible_node(NULL, NULL, "ti,omap3-mpu"); + if (!np) { + np = of_find_compatible_node(NULL, NULL, "ti,omap4-mpu"); + if (!np) { + dev_err(pm33xx_dev, "PM: %s: Unable to find device node for mpu\n", + __func__); + return -ENODEV; + } + } + + sram_pool = of_gen_pool_get(np, "pm-sram", 0); + if (!sram_pool) { + dev_err(pm33xx_dev, "PM: %s: Unable to get sram pool for ocmcram\n", + __func__); + ret = -ENODEV; + goto mpu_put_node; + } + + sram_pool_data = of_gen_pool_get(np, "pm-sram", 1); + if (!sram_pool_data) { + dev_err(pm33xx_dev, "PM: %s: Unable to get sram data pool for ocmcram\n", + __func__); + ret = -ENODEV; + goto mpu_put_node; + } + + ocmcram_location = gen_pool_alloc(sram_pool, *pm_sram->do_wfi_sz); + if (!ocmcram_location) { + dev_err(pm33xx_dev, "PM: %s: Unable to allocate memory from ocmcram\n", + __func__); + ret = -ENOMEM; + goto mpu_put_node; + } + + ocmcram_location_data = gen_pool_alloc(sram_pool_data, + sizeof(struct emif_regs_amx3)); + if (!ocmcram_location_data) { + dev_err(pm33xx_dev, "PM: Unable to allocate memory from ocmcram\n"); + gen_pool_free(sram_pool, ocmcram_location, *pm_sram->do_wfi_sz); + ret = -ENOMEM; + } + +mpu_put_node: + of_node_put(np); + return ret; +} + +static int am33xx_push_sram_idle(void) +{ + struct am33xx_pm_ro_sram_data ro_sram_data; + int ret; + u32 table_addr, ro_data_addr; + void *copy_addr; + + ro_sram_data.amx3_pm_sram_data_virt = ocmcram_location_data; + ro_sram_data.amx3_pm_sram_data_phys = + gen_pool_virt_to_phys(sram_pool_data, ocmcram_location_data); + + /* Save physical address to calculate resume offset during pm init */ + am33xx_do_wfi_sram_phys = gen_pool_virt_to_phys(sram_pool, + ocmcram_location); + + am33xx_do_wfi_sram = sram_exec_copy(sram_pool, (void *)ocmcram_location, + pm_sram->do_wfi, + *pm_sram->do_wfi_sz); + if (!am33xx_do_wfi_sram) { + dev_err(pm33xx_dev, + "PM: %s: am33xx_do_wfi copy to sram failed\n", + __func__); + return -ENODEV; + } + + table_addr = + sram_suspend_address((unsigned long)pm_sram->emif_sram_table); + ret = ti_emif_copy_pm_function_table(sram_pool, (void *)table_addr); + if (ret) { + dev_dbg(pm33xx_dev, + "PM: %s: EMIF function copy failed\n", __func__); + return -EPROBE_DEFER; + } + + ro_data_addr = + sram_suspend_address((unsigned long)pm_sram->ro_sram_data); + copy_addr = sram_exec_copy(sram_pool, (void *)ro_data_addr, + &ro_sram_data, + sizeof(ro_sram_data)); + if (!copy_addr) { + dev_err(pm33xx_dev, + "PM: %s: ro_sram_data copy to sram failed\n", + __func__); + return -ENODEV; + } + + return 0; +} + +static int am33xx_pm_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + int ret; + + if (!of_machine_is_compatible("ti,am33xx") && + !of_machine_is_compatible("ti,am43")) + return -ENODEV; + + pm_ops = dev->platform_data; + if (!pm_ops) { + dev_err(dev, "PM: Cannot get core PM ops!\n"); + return -ENODEV; + } + + pm_sram = pm_ops->get_sram_addrs(); + if (!pm_sram) { + dev_err(dev, "PM: Cannot get PM asm function addresses!!\n"); + return -ENODEV; + } + + pm33xx_dev = dev; + + ret = am33xx_pm_alloc_sram(); + if (ret) + return ret; + + ret = am33xx_push_sram_idle(); + if (ret) + goto err_free_sram; + + m3_ipc = wkup_m3_ipc_get(); + if (!m3_ipc) { + dev_dbg(dev, "PM: Cannot get wkup_m3_ipc handle\n"); + ret = -EPROBE_DEFER; + goto err_free_sram; + } + + am33xx_pm_set_ipc_ops(); + +#ifdef CONFIG_SUSPEND + suspend_set_ops(&am33xx_pm_ops); +#endif /* CONFIG_SUSPEND */ + + ret = pm_ops->init(); + if (ret) { + dev_err(dev, "Unable to call core pm init!\n"); + ret = -ENODEV; + goto err_put_wkup_m3_ipc; + } + + return 0; + +err_put_wkup_m3_ipc: + wkup_m3_ipc_put(m3_ipc); +err_free_sram: + am33xx_pm_free_sram(); + pm33xx_dev = NULL; + return ret; +} + +static int am33xx_pm_remove(struct platform_device *pdev) +{ + suspend_set_ops(NULL); + wkup_m3_ipc_put(m3_ipc); + am33xx_pm_free_sram(); + return 0; +} + +static struct platform_driver am33xx_pm_driver = { + .driver = { + .name = "pm33xx", + }, + .probe = am33xx_pm_probe, + .remove = am33xx_pm_remove, +}; +module_platform_driver(am33xx_pm_driver); + +MODULE_ALIAS("platform:pm33xx"); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("am33xx power management driver"); |