diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-05 15:46:37 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-05 15:46:37 -0700 |
| commit | 2bf73dd61a84cdf27e49f48e08739af6ba70ace1 (patch) | |
| tree | 225876ce1530ba6c3a96621a531f47e963fee691 /arch/arm | |
| parent | d2b150d0647e055d7a71b1c33140280550b27dd6 (diff) | |
| parent | 9dfbff16b422a4bac7ad309847c7bc5d65653392 (diff) | |
| download | linux-2bf73dd61a84cdf27e49f48e08739af6ba70ace1.tar.gz | |
Merge tag 'tags/cleanup2-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC late cleanups from Arnd Bergmann:
"These could not be part of the first cleanup branch, because they
either came too late in the cycle, or they have dependencies on other
branches. Important changes are:
- The integrator platform is almost multiplatform capable after some
reorganization (Linus Walleij)
- Minor cleanups on Zynq (Michal Simek)
- Lots of changes for Exynos and other Samsung platforms, including
further preparations for multiplatform support and the clocks
bindings are rearranged"
* tag 'tags/cleanup2-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (54 commits)
devicetree: fix newly added exynos sata bindings
ARM: EXYNOS: Fix compilation error in cpuidle.c
ARM: S5P64X0: Explicitly include linux/serial_s3c.h in mach/pm-core.h
ARM: EXYNOS: Remove hardware.h file
ARM: SAMSUNG: Remove hardware.h inclusion
ARM: S3C24XX: Remove invalid code from hardware.h
dt-bindings: clock: Move exynos-audss-clk.h to dt-bindings/clock
ARM: dts: Keep some essential LDOs enabled for arndale-octa board
ARM: dts: Disable MDMA1 node for arndale-octa board
ARM: S3C64XX: Fix build for implicit serial_s3c.h inclusion
serial: s3c: Fix build of header without serial_core.h preinclusion
ARM: EXYNOS: Allow wake-up using GIC interrupts
ARM: EXYNOS: Stop using legacy Samsung PM code
ARM: EXYNOS: Remove PM initcalls and useless indirection
ARM: EXYNOS: Fix abuse of CONFIG_PM
ARM: SAMSUNG: Move s3c_pm_check_* prototypes to plat/pm-common.h
ARM: SAMSUNG: Move common save/restore helpers to separate file
ARM: SAMSUNG: Move Samsung PM debug code into separate file
ARM: SAMSUNG: Consolidate PM debug functions
ARM: SAMSUNG: Use debug_ll_addr() to get UART base address
...
Diffstat (limited to 'arch/arm')
82 files changed, 1021 insertions, 1314 deletions
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 8983919a4421..4a2fc0bf6fc9 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -1141,7 +1141,7 @@ config DEBUG_UART_8250_FLOW_CONTROL config DEBUG_UNCOMPRESS bool - depends on ARCH_MULTIPLATFORM || ARCH_MSM || ARCH_EXYNOS + depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \ (!DEBUG_TEGRA_UART || !ZBOOT_ROM) help @@ -1158,7 +1158,7 @@ config DEBUG_UNCOMPRESS config UNCOMPRESS_INCLUDE string default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \ - ARCH_EXYNOS || ARCH_EFM32 + PLAT_SAMSUNG || ARCH_EFM32 default "mach/uncompress.h" config EARLY_PRINTK diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi index 28b5ec79f339..0401f4dba2a2 100644 --- a/arch/arm/boot/dts/exynos4.dtsi +++ b/arch/arm/boot/dts/exynos4.dtsi @@ -86,6 +86,11 @@ reg = <0x10023CE0 0x20>; }; + pd_gps_alive: gps-alive-power-domain@10023D00 { + compatible = "samsung,exynos4210-pd"; + reg = <0x10023D00 0x20>; + }; + gic: interrupt-controller@10490000 { compatible = "arm,cortex-a9-gic"; #interrupt-cells = <3>; diff --git a/arch/arm/boot/dts/exynos4210-origen.dts b/arch/arm/boot/dts/exynos4210-origen.dts index 2aa13cb3bbed..72fb11f7ea21 100644 --- a/arch/arm/boot/dts/exynos4210-origen.dts +++ b/arch/arm/boot/dts/exynos4210-origen.dts @@ -19,7 +19,7 @@ / { model = "Insignal Origen evaluation board based on Exynos4210"; - compatible = "insignal,origen", "samsung,exynos4210"; + compatible = "insignal,origen", "samsung,exynos4210", "samsung,exynos4"; memory { reg = <0x40000000 0x10000000 diff --git a/arch/arm/boot/dts/exynos4210-smdkv310.dts b/arch/arm/boot/dts/exynos4210-smdkv310.dts index 9c01b718d29d..636d16684750 100644 --- a/arch/arm/boot/dts/exynos4210-smdkv310.dts +++ b/arch/arm/boot/dts/exynos4210-smdkv310.dts @@ -19,7 +19,7 @@ / { model = "Samsung smdkv310 evaluation board based on Exynos4210"; - compatible = "samsung,smdkv310", "samsung,exynos4210"; + compatible = "samsung,smdkv310", "samsung,exynos4210", "samsung,exynos4"; memory { reg = <0x40000000 0x80000000>; diff --git a/arch/arm/boot/dts/exynos4210-trats.dts b/arch/arm/boot/dts/exynos4210-trats.dts index 63cc571ca307..361cb58052bf 100644 --- a/arch/arm/boot/dts/exynos4210-trats.dts +++ b/arch/arm/boot/dts/exynos4210-trats.dts @@ -17,7 +17,7 @@ / { model = "Samsung Trats based on Exynos4210"; - compatible = "samsung,trats", "samsung,exynos4210"; + compatible = "samsung,trats", "samsung,exynos4210", "samsung,exynos4"; memory { reg = <0x40000000 0x10000000 diff --git a/arch/arm/boot/dts/exynos4210-universal_c210.dts b/arch/arm/boot/dts/exynos4210-universal_c210.dts index d2e3f5f5916d..27d3b70ee9e3 100644 --- a/arch/arm/boot/dts/exynos4210-universal_c210.dts +++ b/arch/arm/boot/dts/exynos4210-universal_c210.dts @@ -17,7 +17,7 @@ / { model = "Samsung Universal C210 based on Exynos4210 rev0"; - compatible = "samsung,universal_c210", "samsung,exynos4210"; + compatible = "samsung,universal_c210", "samsung,exynos4210", "samsung,exynos4"; memory { reg = <0x40000000 0x10000000 diff --git a/arch/arm/boot/dts/exynos4210.dtsi b/arch/arm/boot/dts/exynos4210.dtsi index cb0e768dc6d4..cacf6140dd2f 100644 --- a/arch/arm/boot/dts/exynos4210.dtsi +++ b/arch/arm/boot/dts/exynos4210.dtsi @@ -23,7 +23,7 @@ #include "exynos4210-pinctrl.dtsi" / { - compatible = "samsung,exynos4210"; + compatible = "samsung,exynos4210", "samsung,exynos4"; aliases { pinctrl0 = &pinctrl_0; diff --git a/arch/arm/boot/dts/exynos4212.dtsi b/arch/arm/boot/dts/exynos4212.dtsi index 94a43f9a05e2..3c00e6ec9302 100644 --- a/arch/arm/boot/dts/exynos4212.dtsi +++ b/arch/arm/boot/dts/exynos4212.dtsi @@ -20,18 +20,13 @@ #include "exynos4x12.dtsi" / { - compatible = "samsung,exynos4212"; + compatible = "samsung,exynos4212", "samsung,exynos4"; - gic: interrupt-controller@10490000 { - cpu-offset = <0x8000>; + combiner: interrupt-controller@10440000 { + samsung,combiner-nr = <18>; }; - interrupt-controller@10440000 { - samsung,combiner-nr = <18>; - interrupts = <0 0 0>, <0 1 0>, <0 2 0>, <0 3 0>, - <0 4 0>, <0 5 0>, <0 6 0>, <0 7 0>, - <0 8 0>, <0 9 0>, <0 10 0>, <0 11 0>, - <0 12 0>, <0 13 0>, <0 14 0>, <0 15 0>, - <0 107 0>, <0 108 0>; + gic: interrupt-controller@10490000 { + cpu-offset = <0x8000>; }; }; diff --git a/arch/arm/boot/dts/exynos4412-odroidx.dts b/arch/arm/boot/dts/exynos4412-odroidx.dts index 12459b01cca3..31db28a4bb33 100644 --- a/arch/arm/boot/dts/exynos4412-odroidx.dts +++ b/arch/arm/boot/dts/exynos4412-odroidx.dts @@ -16,7 +16,7 @@ / { model = "Hardkernel ODROID-X board based on Exynos4412"; - compatible = "hardkernel,odroid-x", "samsung,exynos4412"; + compatible = "hardkernel,odroid-x", "samsung,exynos4412", "samsung,exynos4"; memory { reg = <0x40000000 0x40000000>; diff --git a/arch/arm/boot/dts/exynos4412-origen.dts b/arch/arm/boot/dts/exynos4412-origen.dts index 388f03579661..e2c0dcab4d81 100644 --- a/arch/arm/boot/dts/exynos4412-origen.dts +++ b/arch/arm/boot/dts/exynos4412-origen.dts @@ -17,7 +17,7 @@ / { model = "Insignal Origen evaluation board based on Exynos4412"; - compatible = "insignal,origen4412", "samsung,exynos4412"; + compatible = "insignal,origen4412", "samsung,exynos4412", "samsung,exynos4"; memory { reg = <0x40000000 0x40000000>; diff --git a/arch/arm/boot/dts/exynos4412-smdk4412.dts b/arch/arm/boot/dts/exynos4412-smdk4412.dts index ad316a1ee9e0..ded0b70f7644 100644 --- a/arch/arm/boot/dts/exynos4412-smdk4412.dts +++ b/arch/arm/boot/dts/exynos4412-smdk4412.dts @@ -17,7 +17,7 @@ / { model = "Samsung SMDK evaluation board based on Exynos4412"; - compatible = "samsung,smdk4412", "samsung,exynos4412"; + compatible = "samsung,smdk4412", "samsung,exynos4412", "samsung,exynos4"; memory { reg = <0x40000000 0x40000000>; diff --git a/arch/arm/boot/dts/exynos4412-tiny4412.dts b/arch/arm/boot/dts/exynos4412-tiny4412.dts index 0a9831256b33..ea6929d9c621 100644 --- a/arch/arm/boot/dts/exynos4412-tiny4412.dts +++ b/arch/arm/boot/dts/exynos4412-tiny4412.dts @@ -16,7 +16,7 @@ / { model = "FriendlyARM TINY4412 board based on Exynos4412"; - compatible = "friendlyarm,tiny4412", "samsung,exynos4412"; + compatible = "friendlyarm,tiny4412", "samsung,exynos4412", "samsung,exynos4"; memory { reg = <0x40000000 0x40000000>; diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts index 4f851ccf40eb..c16b3159b813 100644 --- a/arch/arm/boot/dts/exynos4412-trats2.dts +++ b/arch/arm/boot/dts/exynos4412-trats2.dts @@ -17,7 +17,7 @@ / { model = "Samsung Trats 2 based on Exynos4412"; - compatible = "samsung,trats2", "samsung,exynos4412"; + compatible = "samsung,trats2", "samsung,exynos4412", "samsung,exynos4"; aliases { i2c8 = &i2c_ak8975; @@ -106,6 +106,11 @@ }; }; + adc: adc@126C0000 { + vdd-supply = <&ldo3_reg>; + status = "okay"; + }; + i2c@13890000 { samsung,i2c-sda-delay = <100>; samsung,i2c-slave-addr = <0x10>; @@ -589,4 +594,20 @@ }; }; }; + + thermistor-ap@0 { + compatible = "ntc,ncp15wb473"; + pullup-uv = <1800000>; /* VCC_1.8V_AP */ + pullup-ohm = <100000>; /* 100K */ + pulldown-ohm = <100000>; /* 100K */ + io-channels = <&adc 1>; /* AP temperature */ + }; + + thermistor-battery@1 { + compatible = "ntc,ncp15wb473"; + pullup-uv = <1800000>; /* VCC_1.8V_AP */ + pullup-ohm = <100000>; /* 100K */ + pulldown-ohm = <100000>; /* 100K */ + io-channels = <&adc 2>; /* Battery temperature */ + }; }; diff --git a/arch/arm/boot/dts/exynos4412.dtsi b/arch/arm/boot/dts/exynos4412.dtsi index 87b339c739de..15d3c0ac2f5f 100644 --- a/arch/arm/boot/dts/exynos4412.dtsi +++ b/arch/arm/boot/dts/exynos4412.dtsi @@ -20,19 +20,13 @@ #include "exynos4x12.dtsi" / { - compatible = "samsung,exynos4412"; + compatible = "samsung,exynos4412", "samsung,exynos4"; - gic: interrupt-controller@10490000 { - cpu-offset = <0x4000>; - }; - - interrupt-controller@10440000 { + combiner: interrupt-controller@10440000 { samsung,combiner-nr = <20>; - interrupts = <0 0 0>, <0 1 0>, <0 2 0>, <0 3 0>, - <0 4 0>, <0 5 0>, <0 6 0>, <0 7 0>, - <0 8 0>, <0 9 0>, <0 10 0>, <0 11 0>, - <0 12 0>, <0 13 0>, <0 14 0>, <0 15 0>, - <0 107 0>, <0 108 0>, <0 48 0>, <0 42 0>; }; + gic: interrupt-controller@10490000 { + cpu-offset = <0x4000>; + }; }; diff --git a/arch/arm/boot/dts/exynos4x12.dtsi b/arch/arm/boot/dts/exynos4x12.dtsi index e0eb6bb64c34..c4a9306f8529 100644 --- a/arch/arm/boot/dts/exynos4x12.dtsi +++ b/arch/arm/boot/dts/exynos4x12.dtsi @@ -31,6 +31,12 @@ mshc0 = &mshc_0; }; + pmu { + compatible = "arm,cortex-a9-pmu"; + interrupt-parent = <&combiner>; + interrupts = <2 2>, <3 2>, <18 2>, <19 2>; + }; + pd_isp: isp-power-domain@10023CA0 { compatible = "samsung,exynos4210-pd"; reg = <0x10023CA0 0x20>; @@ -62,6 +68,14 @@ }; }; + combiner: interrupt-controller@10440000 { + interrupts = <0 0 0>, <0 1 0>, <0 2 0>, <0 3 0>, + <0 4 0>, <0 5 0>, <0 6 0>, <0 7 0>, + <0 8 0>, <0 9 0>, <0 10 0>, <0 11 0>, + <0 12 0>, <0 13 0>, <0 14 0>, <0 15 0>, + <0 107 0>, <0 108 0>, <0 48 0>, <0 42 0>; + }; + pinctrl_0: pinctrl@11400000 { compatible = "samsung,exynos4x12-pinctrl"; reg = <0x11400000 0x1000>; @@ -80,6 +94,18 @@ }; }; + adc: adc@126C0000 { + compatible = "samsung,exynos-adc-v1"; + reg = <0x126C0000 0x100>, <0x10020718 0x4>; + interrupt-parent = <&combiner>; + interrupts = <10 3>; + clocks = <&clock CLK_TSADC>; + clock-names = "adc"; + #io-channel-cells = <1>; + io-channel-ranges; + status = "disabled"; + }; + pinctrl_2: pinctrl@03860000 { compatible = "samsung,exynos4x12-pinctrl"; reg = <0x03860000 0x1000>; diff --git a/arch/arm/boot/dts/exynos5250-arndale.dts b/arch/arm/boot/dts/exynos5250-arndale.dts index 38b96a4cba6d..090f9830b129 100644 --- a/arch/arm/boot/dts/exynos5250-arndale.dts +++ b/arch/arm/boot/dts/exynos5250-arndale.dts @@ -15,7 +15,7 @@ / { model = "Insignal Arndale evaluation board based on EXYNOS5250"; - compatible = "insignal,arndale", "samsung,exynos5250"; + compatible = "insignal,arndale", "samsung,exynos5250", "samsung,exynos5"; memory { reg = <0x40000000 0x80000000>; @@ -375,6 +375,27 @@ }; }; + i2c@121D0000 { + status = "okay"; + samsung,i2c-sda-delay = <100>; + samsung,i2c-max-bus-freq = <40000>; + samsung,i2c-slave-addr = <0x38>; + + sata_phy_i2c:sata-phy@38 { + compatible = "samsung,exynos-sataphy-i2c"; + reg = <0x38>; + }; + }; + + sata@122F0000 { + status = "okay"; + }; + + sata-phy@12170000 { + status = "okay"; + samsung,exynos-sataphy-i2c-phandle = <&sata_phy_i2c>; + }; + mmc_0: mmc@12200000 { status = "okay"; num-slots = <1>; diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts index f76946e97e6a..a794a705d404 100644 --- a/arch/arm/boot/dts/exynos5250-smdk5250.dts +++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts @@ -14,7 +14,7 @@ / { model = "SAMSUNG SMDK5250 board based on EXYNOS5250"; - compatible = "samsung,smdk5250", "samsung,exynos5250"; + compatible = "samsung,smdk5250", "samsung,exynos5250", "samsung,exynos5"; aliases { }; @@ -242,16 +242,12 @@ samsung,i2c-slave-addr = <0x38>; status = "okay"; - sata-phy { - compatible = "samsung,sata-phy"; + sata_phy_i2c:sata-phy@38 { + compatible = "samsung,exynos-sataphy-i2c"; reg = <0x38>; }; }; - sata@122F0000 { - samsung,sata-freq = <66>; - }; - i2c@12C80000 { samsung,i2c-sda-delay = <100>; samsung,i2c-max-bus-freq = <66000>; @@ -274,6 +270,15 @@ }; }; + sata@122F0000 { + status = "okay"; + }; + + sata-phy@12170000 { + status = "okay"; + samsung,exynos-sataphy-i2c-phandle = <&sata_phy_i2c>; + }; + mmc@12200000 { status = "okay"; num-slots = <1>; @@ -310,10 +315,6 @@ }; }; - spi_0: spi@12d20000 { - status = "disabled"; - }; - spi_1: spi@12d30000 { status = "okay"; diff --git a/arch/arm/boot/dts/exynos5250-snow.dts b/arch/arm/boot/dts/exynos5250-snow.dts index b13bf499f5e2..1ce1088a00fb 100644 --- a/arch/arm/boot/dts/exynos5250-snow.dts +++ b/arch/arm/boot/dts/exynos5250-snow.dts @@ -14,7 +14,7 @@ / { model = "Google Snow"; - compatible = "google,snow", "samsung,exynos5250"; + compatible = "google,snow", "samsung,exynos5250", "samsung,exynos5"; aliases { i2c104 = &i2c_104; diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi index 987cfbe9634b..37423314a028 100644 --- a/arch/arm/boot/dts/exynos5250.dtsi +++ b/arch/arm/boot/dts/exynos5250.dtsi @@ -21,10 +21,10 @@ #include "exynos5.dtsi" #include "exynos5250-pinctrl.dtsi" -#include <dt-bindings/clk/exynos-audss-clk.h> +#include <dt-bindings/clock/exynos-audss-clk.h> / { - compatible = "samsung,exynos5250"; + compatible = "samsung,exynos5250", "samsung,exynos5"; aliases { spi0 = &spi_0; @@ -47,6 +47,7 @@ i2c6 = &i2c_6; i2c7 = &i2c_7; i2c8 = &i2c_8; + i2c9 = &i2c_9; pinctrl0 = &pinctrl_0; pinctrl1 = &pinctrl_1; pinctrl2 = &pinctrl_2; @@ -235,16 +236,25 @@ }; sata@122F0000 { - compatible = "samsung,exynos5-sata-ahci"; + compatible = "snps,dwc-ahci"; + samsung,sata-freq = <66>; reg = <0x122F0000 0x1ff>; interrupts = <0 115 0>; clocks = <&clock CLK_SATA>, <&clock CLK_SCLK_SATA>; clock-names = "sata", "sclk_sata"; + phys = <&sata_phy>; + phy-names = "sata-phy"; + status = "disabled"; }; - sata-phy@12170000 { - compatible = "samsung,exynos5-sata-phy"; + sata_phy: sata-phy@12170000 { + compatible = "samsung,exynos5250-sata-phy"; reg = <0x12170000 0x1ff>; + clocks = <&clock 287>; + clock-names = "sata_phyctrl"; + #phy-cells = <0>; + samsung,syscon-phandle = <&pmu_system_controller>; + status = "disabled"; }; i2c_0: i2c@12C60000 { @@ -362,7 +372,7 @@ status = "disabled"; }; - i2c@121D0000 { + i2c_9: i2c@121D0000 { compatible = "samsung,exynos5-sata-phy-i2c"; reg = <0x121D0000 0x100>; #address-cells = <1>; @@ -718,4 +728,12 @@ io-channel-ranges; status = "disabled"; }; + + sss@10830000 { + compatible = "samsung,exynos4210-secss"; + reg = <0x10830000 0x10000>; + interrupts = <0 112 0>; + clocks = <&clock 348>; + clock-names = "secss"; + }; }; diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts index f509e8fc290f..80a3bf4c5986 100644 --- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts +++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts @@ -16,7 +16,7 @@ / { model = "Insignal Arndale Octa evaluation board based on EXYNOS5420"; - compatible = "insignal,arndale-octa", "samsung,exynos5420"; + compatible = "insignal,arndale-octa", "samsung,exynos5420", "samsung,exynos5"; memory { reg = <0x20000000 0x80000000>; @@ -113,6 +113,7 @@ regulator-name = "PVDD_APIO_MMCON_1V8"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; + regulator-always-on; }; ldo4_reg: LDO4 { @@ -150,6 +151,7 @@ regulator-name = "PVDD_USB_3V3"; regulator-min-microvolt = <3000000>; regulator-max-microvolt = <3000000>; + regulator-always-on; }; ldo10_reg: LDO10 { @@ -218,6 +220,7 @@ regulator-name = "PVDD_MIFS_1V1"; regulator-min-microvolt = <1200000>; regulator-max-microvolt = <1200000>; + regulator-always-on; }; ldo24_reg: LDO24 { @@ -361,4 +364,16 @@ gpio-key,wakeup; }; }; + + amba { + mdma1: mdma@11C10000 { + /* + * MDMA1 can support both secure and non-secure + * AXI transactions. When this is enabled in the kernel + * for boards that run in secure mode, we are getting + * imprecise external aborts causing the kernel to oops. + */ + status = "disabled"; + }; + }; }; diff --git a/arch/arm/boot/dts/exynos5420-smdk5420.dts b/arch/arm/boot/dts/exynos5420-smdk5420.dts index ae1ee0470fca..69104850eb5e 100644 --- a/arch/arm/boot/dts/exynos5420-smdk5420.dts +++ b/arch/arm/boot/dts/exynos5420-smdk5420.dts @@ -14,7 +14,7 @@ / { model = "Samsung SMDK5420 board based on EXYNOS5420"; - compatible = "samsung,smdk5420", "samsung,exynos5420"; + compatible = "samsung,smdk5420", "samsung,exynos5420", "samsung,exynos5"; memory { reg = <0x20000000 0x80000000>; diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi index e3329afbd8c4..c3a9a66c5767 100644 --- a/arch/arm/boot/dts/exynos5420.dtsi +++ b/arch/arm/boot/dts/exynos5420.dtsi @@ -17,10 +17,10 @@ #include "exynos5.dtsi" #include "exynos5420-pinctrl.dtsi" -#include <dt-bindings/clk/exynos-audss-clk.h> +#include <dt-bindings/clock/exynos-audss-clk.h> / { - compatible = "samsung,exynos5420"; + compatible = "samsung,exynos5420", "samsung,exynos5"; aliases { mshc0 = &mmc_0; @@ -723,4 +723,13 @@ clock-names = "watchdog"; samsung,syscon-phandle = <&pmu_system_controller>; }; + + sss@10830000 { + compatible = "samsung,exynos4210-secss"; + reg = <0x10830000 0x10000>; + interrupts = <0 112 0>; + clocks = <&clock 471>; + clock-names = "secss"; + samsung,power-domain = <&g2d_pd>; + }; }; diff --git a/arch/arm/boot/dts/exynos5440-sd5v1.dts b/arch/arm/boot/dts/exynos5440-sd5v1.dts index 777fb1c2c70f..268609a42b2c 100644 --- a/arch/arm/boot/dts/exynos5440-sd5v1.dts +++ b/arch/arm/boot/dts/exynos5440-sd5v1.dts @@ -14,7 +14,7 @@ / { model = "SAMSUNG SD5v1 board based on EXYNOS5440"; - compatible = "samsung,sd5v1", "samsung,exynos5440"; + compatible = "samsung,sd5v1", "samsung,exynos5440", "samsung,exynos5"; chosen { bootargs = "root=/dev/sda2 rw rootwait ignore_loglevel earlyprintk no_console_suspend mem=2048M@0x80000000 mem=6144M@0x100000000 console=ttySAC0,115200"; diff --git a/arch/arm/boot/dts/exynos5440-ssdk5440.dts b/arch/arm/boot/dts/exynos5440-ssdk5440.dts index d58cb787061a..ff55dac6e219 100644 --- a/arch/arm/boot/dts/exynos5440-ssdk5440.dts +++ b/arch/arm/boot/dts/exynos5440-ssdk5440.dts @@ -14,7 +14,7 @@ / { model = "SAMSUNG SSDK5440 board based on EXYNOS5440"; - compatible = "samsung,ssdk5440", "samsung,exynos5440"; + compatible = "samsung,ssdk5440", "samsung,exynos5440", "samsung,exynos5"; chosen { bootargs = "root=/dev/sda2 rw rootwait ignore_loglevel earlyprintk no_console_suspend mem=2048M@0x80000000 mem=6144M@0x100000000 console=ttySAC0,115200"; diff --git a/arch/arm/boot/dts/exynos5440.dtsi b/arch/arm/boot/dts/exynos5440.dtsi index 75c7b89cec2f..84f77c2fe4d4 100644 --- a/arch/arm/boot/dts/exynos5440.dtsi +++ b/arch/arm/boot/dts/exynos5440.dtsi @@ -13,7 +13,7 @@ #include "skeleton.dtsi" / { - compatible = "samsung,exynos5440"; + compatible = "samsung,exynos5440", "samsung,exynos5"; interrupt-parent = <&gic>; diff --git a/arch/arm/boot/dts/zynq-7000.dtsi b/arch/arm/boot/dts/zynq-7000.dtsi index 286a840e3dce..511180769af5 100644 --- a/arch/arm/boot/dts/zynq-7000.dtsi +++ b/arch/arm/boot/dts/zynq-7000.dtsi @@ -129,30 +129,28 @@ } ; slcr: slcr@f8000000 { - compatible = "xlnx,zynq-slcr"; + #address-cells = <1>; + #size-cells = <1>; + compatible = "xlnx,zynq-slcr", "syscon"; reg = <0xF8000000 0x1000>; - - clocks { - #address-cells = <1>; - #size-cells = <0>; - - clkc: clkc { - #clock-cells = <1>; - compatible = "xlnx,ps7-clkc"; - ps-clk-frequency = <33333333>; - fclk-enable = <0>; - clock-output-names = "armpll", "ddrpll", "iopll", "cpu_6or4x", - "cpu_3or2x", "cpu_2x", "cpu_1x", "ddr2x", "ddr3x", - "dci", "lqspi", "smc", "pcap", "gem0", "gem1", - "fclk0", "fclk1", "fclk2", "fclk3", "can0", "can1", - "sdio0", "sdio1", "uart0", "uart1", "spi0", "spi1", - "dma", "usb0_aper", "usb1_aper", "gem0_aper", - "gem1_aper", "sdio0_aper", "sdio1_aper", - "spi0_aper", "spi1_aper", "can0_aper", "can1_aper", - "i2c0_aper", "i2c1_aper", "uart0_aper", "uart1_aper", - "gpio_aper", "lqspi_aper", "smc_aper", "swdt", - "dbg_trc", "dbg_apb"; - }; + ranges; + clkc: clkc@100 { + #clock-cells = <1>; + compatible = "xlnx,ps7-clkc"; + ps-clk-frequency = <33333333>; + fclk-enable = <0>; + clock-output-names = "armpll", "ddrpll", "iopll", "cpu_6or4x", + "cpu_3or2x", "cpu_2x", "cpu_1x", "ddr2x", "ddr3x", + "dci", "lqspi", "smc", "pcap", "gem0", "gem1", + "fclk0", "fclk1", "fclk2", "fclk3", "can0", "can1", + "sdio0", "sdio1", "uart0", "uart1", "spi0", "spi1", + "dma", "usb0_aper", "usb1_aper", "gem0_aper", + "gem1_aper", "sdio0_aper", "sdio1_aper", + "spi0_aper", "spi1_aper", "can0_aper", "can1_aper", + "i2c0_aper", "i2c1_aper", "uart0_aper", "uart1_aper", + "gpio_aper", "lqspi_aper", "smc_aper", "swdt", + "dbg_trc", "dbg_apb"; + reg = <0x100 0x100>; }; }; diff --git a/arch/arm/include/debug/zynq.S b/arch/arm/include/debug/zynq.S index f9aa9740a73f..0b762fafa758 100644 --- a/arch/arm/include/debug/zynq.S +++ b/arch/arm/include/debug/zynq.S @@ -42,6 +42,9 @@ .endm .macro waituart,rd,rx +1001: ldr \rd, [\rx, #UART_SR_OFFSET] + tst \rd, #UART_SR_TXEMPTY + beq 1001b .endm .macro busyuart,rd,rx diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig index 8d197dcdd2c0..fc8bf18e222d 100644 --- a/arch/arm/mach-exynos/Kconfig +++ b/arch/arm/mach-exynos/Kconfig @@ -24,7 +24,7 @@ config ARCH_EXYNOS4 select HAVE_SMP select MIGHT_HAVE_CACHE_L2X0 select PINCTRL - select PM_GENERIC_DOMAINS if PM + select PM_GENERIC_DOMAINS if PM_RUNTIME select S5P_DEV_MFC help Samsung EXYNOS4 SoCs based systems @@ -46,10 +46,8 @@ config CPU_EXYNOS4210 default y depends on ARCH_EXYNOS4 select ARCH_HAS_BANDGAP - select ARM_CPU_SUSPEND if PM + select ARM_CPU_SUSPEND if PM_SLEEP select PINCTRL_EXYNOS - select S5P_PM if PM - select S5P_SLEEP if PM select SAMSUNG_DMADEV help Enable EXYNOS4210 CPU support @@ -60,8 +58,6 @@ config SOC_EXYNOS4212 depends on ARCH_EXYNOS4 select ARCH_HAS_BANDGAP select PINCTRL_EXYNOS - select S5P_PM if PM - select S5P_SLEEP if PM select SAMSUNG_DMADEV help Enable EXYNOS4212 SoC support @@ -82,9 +78,7 @@ config SOC_EXYNOS5250 depends on ARCH_EXYNOS5 select ARCH_HAS_BANDGAP select PINCTRL_EXYNOS - select PM_GENERIC_DOMAINS if PM - select S5P_PM if PM - select S5P_SLEEP if PM + select PM_GENERIC_DOMAINS if PM_RUNTIME select S5P_DEV_MFC select SAMSUNG_DMADEV help @@ -94,9 +88,7 @@ config SOC_EXYNOS5420 bool "SAMSUNG EXYNOS5420" default y depends on ARCH_EXYNOS5 - select PM_GENERIC_DOMAINS if PM - select S5P_PM if PM - select S5P_SLEEP if PM + select PM_GENERIC_DOMAINS if PM_RUNTIME help Enable EXYNOS5420 SoC support diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile index 8930b66b4abd..a656dbe3b78c 100644 --- a/arch/arm/mach-exynos/Makefile +++ b/arch/arm/mach-exynos/Makefile @@ -12,9 +12,9 @@ obj- := # Core -obj-$(CONFIG_ARCH_EXYNOS) += common.o +obj-$(CONFIG_ARCH_EXYNOS) += exynos.o -obj-$(CONFIG_S5P_PM) += pm.o +obj-$(CONFIG_PM_SLEEP) += pm.o sleep.o obj-$(CONFIG_PM_GENERIC_DOMAINS) += pm_domains.o obj-$(CONFIG_CPU_IDLE) += cpuidle.o @@ -29,8 +29,3 @@ obj-$(CONFIG_ARCH_EXYNOS) += firmware.o plus_sec := $(call as-instr,.arch_extension sec,+sec) AFLAGS_exynos-smc.o :=-Wa,-march=armv7-a$(plus_sec) - -# machine support - -obj-$(CONFIG_ARCH_EXYNOS4) += mach-exynos4-dt.o -obj-$(CONFIG_ARCH_EXYNOS5) += mach-exynos5-dt.o diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h index f76967b1c551..9ef3f83efaff 100644 --- a/arch/arm/mach-exynos/common.h +++ b/arch/arm/mach-exynos/common.h @@ -19,14 +19,27 @@ void mct_init(void __iomem *base, int irq_g0, int irq_l0, int irq_l1); struct map_desc; void exynos_init_io(void); -void exynos4_restart(enum reboot_mode mode, const char *cmd); -void exynos5_restart(enum reboot_mode mode, const char *cmd); +void exynos_restart(enum reboot_mode mode, const char *cmd); void exynos_cpuidle_init(void); void exynos_cpufreq_init(void); void exynos_init_late(void); void exynos_firmware_init(void); +#ifdef CONFIG_PINCTRL_EXYNOS +extern u32 exynos_get_eint_wake_mask(void); +#else +static inline u32 exynos_get_eint_wake_mask(void) { return 0xffffffff; } +#endif + +#ifdef CONFIG_PM_SLEEP +extern void __init exynos_pm_init(void); +#else +static inline void exynos_pm_init(void) {} +#endif + +extern void exynos_cpu_resume(void); + extern struct smp_operations exynos_smp_ops; extern void exynos_cpu_die(unsigned int cpu); diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c index 93d2decc112d..c57cae0e8779 100644 --- a/arch/arm/mach-exynos/cpuidle.c +++ b/arch/arm/mach-exynos/cpuidle.c @@ -27,7 +27,6 @@ #include <plat/cpu.h> #include <plat/pm.h> -#include <mach/pm-core.h> #include <mach/map.h> #include "common.h" @@ -128,7 +127,7 @@ static int exynos4_enter_core0_aftr(struct cpuidle_device *dev, /* Set value of power down register for aftr mode */ exynos_sys_powerdown_conf(SYS_AFTR); - __raw_writel(virt_to_phys(s3c_cpu_resume), REG_DIRECTGO_ADDR); + __raw_writel(virt_to_phys(exynos_cpu_resume), REG_DIRECTGO_ADDR); __raw_writel(S5P_CHECK_AFTR, REG_DIRECTGO_FLAG); save_cpu_arch_register(); diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/exynos.c index b2f9bb071557..b32a907d021d 100644 --- a/arch/arm/mach-exynos/common.c +++ b/arch/arm/mach-exynos/exynos.c @@ -1,105 +1,40 @@ /* - * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com + * SAMSUNG EXYNOS Flattened Device Tree enabled machine * - * Common Codes for EXYNOS + * Copyright (c) 2010-2014 Samsung Electronics Co., Ltd. + * http://www.samsung.com * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ -#include <linux/kernel.h> -#include <linux/bitops.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/irqchip.h> +#include <linux/init.h> #include <linux/io.h> -#include <linux/device.h> -#include <linux/gpio.h> -#include <clocksource/samsung_pwm.h> -#include <linux/sched.h> -#include <linux/serial_core.h> +#include <linux/kernel.h> #include <linux/serial_s3c.h> #include <linux/of.h> -#include <linux/of_fdt.h> -#include <linux/of_irq.h> -#include <linux/pm_domain.h> -#include <linux/export.h> -#include <linux/irqdomain.h> #include <linux/of_address.h> -#include <linux/irqchip/arm-gic.h> -#include <linux/irqchip/chained_irq.h> +#include <linux/of_fdt.h> +#include <linux/of_platform.h> #include <linux/platform_device.h> +#include <linux/pm_domain.h> -#include <asm/proc-fns.h> -#include <asm/exception.h> +#include <asm/cacheflush.h> #include <asm/hardware/cache-l2x0.h> +#include <asm/mach/arch.h> #include <asm/mach/map.h> -#include <asm/mach/irq.h> -#include <asm/cacheflush.h> +#include <asm/memory.h> #include <plat/cpu.h> -#include <plat/pm.h> #include "common.h" +#include "mfc.h" #include "regs-pmu.h" #define L2_AUX_VAL 0x7C470001 #define L2_AUX_MASK 0xC200ffff -static const char name_exynos4210[] = "EXYNOS4210"; -static const char name_exynos4212[] = "EXYNOS4212"; -static const char name_exynos4412[] = "EXYNOS4412"; -static const char name_exynos5250[] = "EXYNOS5250"; -static const char name_exynos5420[] = "EXYNOS5420"; -static const char name_exynos5440[] = "EXYNOS5440"; - -static void exynos4_map_io(void); -static void exynos5_map_io(void); -static int exynos_init(void); - -static struct cpu_table cpu_ids[] __initdata = { - { - .idcode = EXYNOS4210_CPU_ID, - .idmask = EXYNOS4_CPU_MASK, - .map_io = exynos4_map_io, - .init = exynos_init, - .name = name_exynos4210, - }, { - .idcode = EXYNOS4212_CPU_ID, - .idmask = EXYNOS4_CPU_MASK, - .map_io = exynos4_map_io, - .init = exynos_init, - .name = name_exynos4212, - }, { - .idcode = EXYNOS4412_CPU_ID, - .idmask = EXYNOS4_CPU_MASK, - .map_io = exynos4_map_io, - .init = exynos_init, - .name = name_exynos4412, - }, { - .idcode = EXYNOS5250_SOC_ID, - .idmask = EXYNOS5_SOC_MASK, - .map_io = exynos5_map_io, - .init = exynos_init, - .name = name_exynos5250, - }, { - .idcode = EXYNOS5420_SOC_ID, - .idmask = EXYNOS5_SOC_MASK, - .map_io = exynos5_map_io, - .init = exynos_init, - .name = name_exynos5420, - }, { - .idcode = EXYNOS5440_SOC_ID, - .idmask = EXYNOS5_SOC_MASK, - .init = exynos_init, - .name = name_exynos5440, - }, -}; - -/* Initial IO mappings */ - static struct map_desc exynos4_iodesc[] __initdata = { { .virtual = (unsigned long)S3C_VA_SYS, @@ -263,19 +198,11 @@ static struct map_desc exynos5_iodesc[] __initdata = { }, }; -void exynos4_restart(enum reboot_mode mode, const char *cmd) -{ - __raw_writel(0x1, S5P_SWRESET); -} - -void exynos5_restart(enum reboot_mode mode, const char *cmd) +void exynos_restart(enum reboot_mode mode, const char *cmd) { struct device_node *np; - u32 val; - void __iomem *addr; - - val = 0x1; - addr = EXYNOS_SWRESET; + u32 val = 0x1; + void __iomem *addr = EXYNOS_SWRESET; if (of_machine_is_compatible("samsung,exynos5440")) { u32 status; @@ -315,6 +242,7 @@ void __init exynos_init_late(void) return; pm_genpd_poweroff_unused(); + exynos_pm_init(); } static int __init exynos_fdt_map_chipid(unsigned long node, const char *uname, @@ -345,6 +273,28 @@ static int __init exynos_fdt_map_chipid(unsigned long node, const char *uname, * * register the standard cpu IO areas */ +static void __init exynos_map_io(void) +{ + if (soc_is_exynos4()) + iotable_init(exynos4_iodesc, ARRAY_SIZE(exynos4_iodesc)); + + if (soc_is_exynos5()) + iotable_init(exynos5_iodesc, ARRAY_SIZE(exynos5_iodesc)); + + if (soc_is_exynos4210()) { + if (samsung_rev() == EXYNOS4210_REV_0) + iotable_init(exynos4_iodesc0, + ARRAY_SIZE(exynos4_iodesc0)); + else + iotable_init(exynos4_iodesc1, + ARRAY_SIZE(exynos4_iodesc1)); + iotable_init(exynos4210_iodesc, ARRAY_SIZE(exynos4210_iodesc)); + } + if (soc_is_exynos4212() || soc_is_exynos4412()) + iotable_init(exynos4x12_iodesc, ARRAY_SIZE(exynos4x12_iodesc)); + if (soc_is_exynos5250()) + iotable_init(exynos5250_iodesc, ARRAY_SIZE(exynos5250_iodesc)); +} void __init exynos_init_io(void) { @@ -355,30 +305,7 @@ void __init exynos_init_io(void) /* detect cpu id and rev. */ s5p_init_cpu(S5P_VA_CHIPID); - s3c_init_cpu(samsung_cpu_id, cpu_ids, ARRAY_SIZE(cpu_ids)); -} - -static void __init exynos4_map_io(void) -{ - iotable_init(exynos4_iodesc, ARRAY_SIZE(exynos4_iodesc)); - - if (soc_is_exynos4210() && samsung_rev() == EXYNOS4210_REV_0) - iotable_init(exynos4_iodesc0, ARRAY_SIZE(exynos4_iodesc0)); - else - iotable_init(exynos4_iodesc1, ARRAY_SIZE(exynos4_iodesc1)); - - if (soc_is_exynos4210()) - iotable_init(exynos4210_iodesc, ARRAY_SIZE(exynos4210_iodesc)); - if (soc_is_exynos4212() || soc_is_exynos4412()) - iotable_init(exynos4x12_iodesc, ARRAY_SIZE(exynos4x12_iodesc)); -} - -static void __init exynos5_map_io(void) -{ - iotable_init(exynos5_iodesc, ARRAY_SIZE(exynos5_iodesc)); - - if (soc_is_exynos5250()) - iotable_init(exynos5250_iodesc, ARRAY_SIZE(exynos5250_iodesc)); + exynos_map_io(); } struct bus_type exynos_subsys = { @@ -386,10 +313,6 @@ struct bus_type exynos_subsys = { .dev_name = "exynos-core", }; -static struct device exynos4_dev = { - .bus = &exynos_subsys, -}; - static int __init exynos_core_init(void) { return subsys_system_register(&exynos_subsys, NULL); @@ -412,9 +335,77 @@ static int __init exynos4_l2x0_cache_init(void) } early_initcall(exynos4_l2x0_cache_init); -static int __init exynos_init(void) +static void __init exynos_dt_machine_init(void) { - printk(KERN_INFO "EXYNOS: Initializing architecture\n"); + struct device_node *i2c_np; + const char *i2c_compat = "samsung,s3c2440-i2c"; + unsigned int tmp; + int id; + + /* + * Exynos5's legacy i2c controller and new high speed i2c + * controller have muxed interrupt sources. By default the + * interrupts for 4-channel HS-I2C controller are enabled. + * If node for first four channels of legacy i2c controller + * are available then re-configure the interrupts via the + * system register. + */ + if (soc_is_exynos5()) { + for_each_compatible_node(i2c_np, NULL, i2c_compat) { + if (of_device_is_available(i2c_np)) { + id = of_alias_get_id(i2c_np, "i2c"); + if (id < 4) { + tmp = readl(EXYNOS5_SYS_I2C_CFG); + writel(tmp & ~(0x1 << id), + EXYNOS5_SYS_I2C_CFG); + } + } + } + } - return device_register(&exynos4_dev); + exynos_cpuidle_init(); + exynos_cpufreq_init(); + + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); } + +static char const *exynos_dt_compat[] __initconst = { + "samsung,exynos4", + "samsung,exynos4210", + "samsung,exynos4212", + "samsung,exynos4412", + "samsung,exynos5", + "samsung,exynos5250", + "samsung,exynos5420", + "samsung,exynos5440", + NULL +}; + +static void __init exynos_reserve(void) +{ +#ifdef CONFIG_S5P_DEV_MFC + int i; + char *mfc_mem[] = { + "samsung,mfc-v5", + "samsung,mfc-v6", + "samsung,mfc-v7", + }; + + for (i = 0; i < ARRAY_SIZE(mfc_mem); i++) + if (of_scan_flat_dt(s5p_fdt_alloc_mfc_mem, mfc_mem[i])) + break; +#endif +} + +DT_MACHINE_START(EXYNOS_DT, "SAMSUNG EXYNOS (Flattened Device Tree)") + /* Maintainer: Thomas Abraham <thomas.abraham@linaro.org> */ + /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */ + .smp = smp_ops(exynos_smp_ops), + .map_io = exynos_init_io, + .init_early = exynos_firmware_init, + .init_machine = exynos_dt_machine_init, + .init_late = exynos_init_late, + .dt_compat = exynos_dt_compat, + .restart = exynos_restart, + .reserve = exynos_reserve, +MACHINE_END diff --git a/arch/arm/mach-exynos/include/mach/hardware.h b/arch/arm/mach-exynos/include/mach/hardware.h deleted file mode 100644 index 5109eb232f23..000000000000 --- a/arch/arm/mach-exynos/include/mach/hardware.h +++ /dev/null @@ -1,18 +0,0 @@ -/* linux/arch/arm/mach-exynos4/include/mach/hardware.h - * - * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * EXYNOS4 - Hardware support - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#ifndef __ASM_ARCH_HARDWARE_H -#define __ASM_ARCH_HARDWARE_H __FILE__ - -/* currently nothing here, placeholder */ - -#endif /* __ASM_ARCH_HARDWARE_H */ diff --git a/arch/arm/mach-exynos/include/mach/pm-core.h b/arch/arm/mach-exynos/include/mach/pm-core.h deleted file mode 100644 index dc0697c2fa92..000000000000 --- a/arch/arm/mach-exynos/include/mach/pm-core.h +++ /dev/null @@ -1,75 +0,0 @@ -/* linux/arch/arm/mach-exynos4/include/mach/pm-core.h - * - * Copyright (c) 2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * Based on arch/arm/mach-s3c2410/include/mach/pm-core.h, - * Copyright 2008 Simtec Electronics - * Ben Dooks <ben@simtec.co.uk> - * http://armlinux.simtec.co.uk/ - * - * EXYNOS4210 - PM core support for arch/arm/plat-s5p/pm.c - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#ifndef __ASM_ARCH_PM_CORE_H -#define __ASM_ARCH_PM_CORE_H __FILE__ - -#include <linux/of.h> -#include <mach/map.h> - -#define S5P_EINT_WAKEUP_MASK (S5P_VA_PMU + 0x0604) -#define S5P_WAKEUP_MASK (S5P_VA_PMU + 0x0608) - -#ifdef CONFIG_PINCTRL_EXYNOS -extern u32 exynos_get_eint_wake_mask(void); -#else -static inline u32 exynos_get_eint_wake_mask(void) { return 0xffffffff; } -#endif - -static inline void s3c_pm_debug_init_uart(void) -{ - /* nothing here yet */ -} - -static inline void s3c_pm_arch_prepare_irqs(void) -{ - __raw_writel(exynos_get_eint_wake_mask(), S5P_EINT_WAKEUP_MASK); - __raw_writel(s3c_irqwake_intmask & ~(1 << 31), S5P_WAKEUP_MASK); -} - -static inline void s3c_pm_arch_stop_clocks(void) -{ - /* nothing here yet */ -} - -static inline void s3c_pm_arch_show_resume_irqs(void) -{ - /* nothing here yet */ -} - -static inline void s3c_pm_arch_update_uart(void __iomem *regs, - struct pm_uart_save *save) -{ - /* nothing here yet */ -} - -static inline void s3c_pm_restored_gpios(void) -{ - /* nothing here yet */ -} - -static inline void samsung_pm_saved_gpios(void) -{ - /* nothing here yet */ -} - -/* Compatibility definitions to make plat-samsung/pm.c compile */ -#define IRQ_EINT_BIT(x) 1 -#define s3c_irqwake_intallow 0 -#define s3c_irqwake_eintallow 0 - -#endif /* __ASM_ARCH_PM_CORE_H */ diff --git a/arch/arm/mach-exynos/mach-exynos4-dt.c b/arch/arm/mach-exynos/mach-exynos4-dt.c deleted file mode 100644 index d3e54b7644d7..000000000000 --- a/arch/arm/mach-exynos/mach-exynos4-dt.c +++ /dev/null @@ -1,59 +0,0 @@ -/* - * Samsung's EXYNOS4 flattened device tree enabled machine - * - * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * Copyright (c) 2010-2011 Linaro Ltd. - * www.linaro.org - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#include <linux/of_platform.h> -#include <linux/of_fdt.h> - -#include <asm/mach/arch.h> -#include <plat/mfc.h> - -#include "common.h" - -static void __init exynos4_dt_machine_init(void) -{ - exynos_cpuidle_init(); - exynos_cpufreq_init(); - - of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); -} - -static char const *exynos4_dt_compat[] __initdata = { - "samsung,exynos4210", - "samsung,exynos4212", - "samsung,exynos4412", - NULL -}; - -static void __init exynos4_reserve(void) -{ -#ifdef CONFIG_S5P_DEV_MFC - struct s5p_mfc_dt_meminfo mfc_mem; - - /* Reserve memory for MFC only if it's available */ - mfc_mem.compatible = "samsung,mfc-v5"; - if (of_scan_flat_dt(s5p_fdt_find_mfc_mem, &mfc_mem)) - s5p_mfc_reserve_mem(mfc_mem.roff, mfc_mem.rsize, mfc_mem.loff, - mfc_mem.lsize); -#endif -} -DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)") - /* Maintainer: Thomas Abraham <thomas.abraham@linaro.org> */ - .smp = smp_ops(exynos_smp_ops), - .map_io = exynos_init_io, - .init_early = exynos_firmware_init, - .init_machine = exynos4_dt_machine_init, - .init_late = exynos_init_late, - .dt_compat = exynos4_dt_compat, - .restart = exynos4_restart, - .reserve = exynos4_reserve, -MACHINE_END diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c deleted file mode 100644 index 37ea261f0f6c..000000000000 --- a/arch/arm/mach-exynos/mach-exynos5-dt.c +++ /dev/null @@ -1,81 +0,0 @@ -/* - * SAMSUNG EXYNOS5250 Flattened Device Tree enabled machine - * - * Copyright (c) 2012 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#include <linux/of_platform.h> -#include <linux/of_fdt.h> -#include <linux/io.h> - -#include <asm/mach/arch.h> -#include <plat/mfc.h> - -#include "common.h" -#include "regs-pmu.h" - -static void __init exynos5_dt_machine_init(void) -{ - struct device_node *i2c_np; - const char *i2c_compat = "samsung,s3c2440-i2c"; - unsigned int tmp; - - /* - * Exynos5's legacy i2c controller and new high speed i2c - * controller have muxed interrupt sources. By default the - * interrupts for 4-channel HS-I2C controller are enabled. - * If node for first four channels of legacy i2c controller - * are available then re-configure the interrupts via the - * system register. - */ - for_each_compatible_node(i2c_np, NULL, i2c_compat) { - if (of_device_is_available(i2c_np)) { - if (of_alias_get_id(i2c_np, "i2c") < 4) { - tmp = readl(EXYNOS5_SYS_I2C_CFG); - writel(tmp & ~(0x1 << of_alias_get_id(i2c_np, "i2c")), - EXYNOS5_SYS_I2C_CFG); - } - } - } - - exynos_cpuidle_init(); - exynos_cpufreq_init(); - - of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); -} - -static char const *exynos5_dt_compat[] __initdata = { - "samsung,exynos5250", - "samsung,exynos5420", - "samsung,exynos5440", - NULL -}; - -static void __init exynos5_reserve(void) -{ -#ifdef CONFIG_S5P_DEV_MFC - struct s5p_mfc_dt_meminfo mfc_mem; - - /* Reserve memory for MFC only if it's available */ - mfc_mem.compatible = "samsung,mfc-v6"; - if (of_scan_flat_dt(s5p_fdt_find_mfc_mem, &mfc_mem)) - s5p_mfc_reserve_mem(mfc_mem.roff, mfc_mem.rsize, mfc_mem.loff, - mfc_mem.lsize); -#endif -} - -DT_MACHINE_START(EXYNOS5_DT, "SAMSUNG EXYNOS5 (Flattened Device Tree)") - /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */ - .smp = smp_ops(exynos_smp_ops), - .map_io = exynos_init_io, - .init_machine = exynos5_dt_machine_init, - .init_late = exynos_init_late, - .dt_compat = exynos5_dt_compat, - .restart = exynos5_restart, - .reserve = exynos5_reserve, -MACHINE_END diff --git a/arch/arm/mach-exynos/mfc.h b/arch/arm/mach-exynos/mfc.h new file mode 100644 index 000000000000..dec93cd5b3c6 --- /dev/null +++ b/arch/arm/mach-exynos/mfc.h @@ -0,0 +1,16 @@ +/* + * Copyright (C) 2013 Samsung Electronics Co.Ltd + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#ifndef __MACH_EXYNOS_MFC_H +#define __MACH_EXYNOS_MFC_H __FILE__ + +int __init s5p_fdt_alloc_mfc_mem(unsigned long node, const char *uname, + int depth, void *data); + +#endif /* __MACH_EXYNOS_MFC_H */ diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c index 8ea02f63fed9..03e5e9f94705 100644 --- a/arch/arm/mach-exynos/platsmp.c +++ b/arch/arm/mach-exynos/platsmp.c @@ -26,8 +26,6 @@ #include <asm/smp_scu.h> #include <asm/firmware.h> -#include <mach/hardware.h> - #include <plat/cpu.h> #include "common.h" diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c index ba18214c9aca..15af0ceb0a66 100644 --- a/arch/arm/mach-exynos/pm.c +++ b/arch/arm/mach-exynos/pm.c @@ -17,24 +17,35 @@ #include <linux/suspend.h> #include <linux/syscore_ops.h> #include <linux/io.h> +#include <linux/irqchip/arm-gic.h> #include <linux/err.h> #include <linux/clk.h> #include <asm/cacheflush.h> #include <asm/hardware/cache-l2x0.h> #include <asm/smp_scu.h> +#include <asm/suspend.h> #include <plat/cpu.h> -#include <plat/pm.h> +#include <plat/pm-common.h> #include <plat/pll.h> #include <plat/regs-srom.h> #include <mach/map.h> -#include <mach/pm-core.h> #include "common.h" #include "regs-pmu.h" +/** + * struct exynos_wkup_irq - Exynos GIC to PMU IRQ mapping + * @hwirq: Hardware IRQ signal of the GIC + * @mask: Mask in PMU wake-up mask register + */ +struct exynos_wkup_irq { + unsigned int hwirq; + u32 mask; +}; + static struct sleep_save exynos5_sys_save[] = { SAVE_ITEM(EXYNOS5_SYS_I2C_CFG), }; @@ -48,6 +59,46 @@ static struct sleep_save exynos_core_save[] = { SAVE_ITEM(S5P_SROM_BC3), }; +/* + * GIC wake-up support + */ + +static u32 exynos_irqwake_intmask = 0xffffffff; + +static const struct exynos_wkup_irq exynos4_wkup_irq[] = { + { 76, BIT(1) }, /* RTC alarm */ + { 77, BIT(2) }, /* RTC tick */ + { /* sentinel */ }, +}; + +static const struct exynos_wkup_irq exynos5250_wkup_irq[] = { + { 75, BIT(1) }, /* RTC alarm */ + { 76, BIT(2) }, /* RTC tick */ + { /* sentinel */ }, +}; + +static int exynos_irq_set_wake(struct irq_data *data, unsigned int state) +{ + const struct exynos_wkup_irq *wkup_irq; + + if (soc_is_exynos5250()) + wkup_irq = exynos5250_wkup_irq; + else + wkup_irq = exynos4_wkup_irq; + + while (wkup_irq->mask) { + if (wkup_irq->hwirq == data->hwirq) { + if (!state) + exynos_irqwake_intmask |= wkup_irq->mask; + else + exynos_irqwake_intmask &= ~wkup_irq->mask; + return 0; + } + ++wkup_irq; + } + + return -ENOENT; +} /* For Cortex-A9 Diagnostic and Power control register */ static unsigned int save_arm_register[2]; @@ -72,6 +123,10 @@ static void exynos_pm_prepare(void) { unsigned int tmp; + /* Set wake-up mask registers */ + __raw_writel(exynos_get_eint_wake_mask(), S5P_EINT_WAKEUP_MASK); + __raw_writel(exynos_irqwake_intmask & ~(1 << 31), S5P_WAKEUP_MASK); + s3c_pm_do_save(exynos_core_save, ARRAY_SIZE(exynos_core_save)); if (soc_is_exynos5250()) { @@ -89,41 +144,8 @@ static void exynos_pm_prepare(void) /* ensure at least INFORM0 has the resume address */ - __raw_writel(virt_to_phys(s3c_cpu_resume), S5P_INFORM0); -} - -static int exynos_pm_add(struct device *dev, struct subsys_interface *sif) -{ - pm_cpu_prep = exynos_pm_prepare; - pm_cpu_sleep = exynos_cpu_suspend; - - return 0; -} - -static struct subsys_interface exynos_pm_interface = { - .name = "exynos_pm", - .subsys = &exynos_subsys, - .add_dev = exynos_pm_add, -}; - -static __init int exynos_pm_drvinit(void) -{ - unsigned int tmp; - - if (soc_is_exynos5440()) - return 0; - - s3c_pm_init(); - - /* All wakeup disable */ - - tmp = __raw_readl(S5P_WAKEUP_MASK); - tmp |= ((0xFF << 8) | (0x1F << 1)); - __raw_writel(tmp, S5P_WAKEUP_MASK); - - return subsys_interface_register(&exynos_pm_interface); + __raw_writel(virt_to_phys(exynos_cpu_resume), S5P_INFORM0); } -arch_initcall(exynos_pm_drvinit); static int exynos_pm_suspend(void) { @@ -220,12 +242,80 @@ static struct syscore_ops exynos_pm_syscore_ops = { .resume = exynos_pm_resume, }; -static __init int exynos_pm_syscore_init(void) +/* + * Suspend Ops + */ + +static int exynos_suspend_enter(suspend_state_t state) { - if (soc_is_exynos5440()) - return 0; + int ret; + + s3c_pm_debug_init(); + + S3C_PMDBG("%s: suspending the system...\n", __func__); + + S3C_PMDBG("%s: wakeup masks: %08x,%08x\n", __func__, + exynos_irqwake_intmask, exynos_get_eint_wake_mask()); + + if (exynos_irqwake_intmask == -1U + && exynos_get_eint_wake_mask() == -1U) { + pr_err("%s: No wake-up sources!\n", __func__); + pr_err("%s: Aborting sleep\n", __func__); + return -EINVAL; + } + + s3c_pm_save_uarts(); + exynos_pm_prepare(); + flush_cache_all(); + s3c_pm_check_store(); + + ret = cpu_suspend(0, exynos_cpu_suspend); + if (ret) + return ret; + + s3c_pm_restore_uarts(); + + S3C_PMDBG("%s: wakeup stat: %08x\n", __func__, + __raw_readl(S5P_WAKEUP_STAT)); + + s3c_pm_check_restore(); + + S3C_PMDBG("%s: resuming the system...\n", __func__); - register_syscore_ops(&exynos_pm_syscore_ops); return 0; } -arch_initcall(exynos_pm_syscore_init); + +static int exynos_suspend_prepare(void) +{ + s3c_pm_check_prepare(); + + return 0; +} + +static void exynos_suspend_finish(void) +{ + s3c_pm_check_cleanup(); +} + +static const struct platform_suspend_ops exynos_suspend_ops = { + .enter = exynos_suspend_enter, + .prepare = exynos_suspend_prepare, + .finish = exynos_suspend_finish, + .valid = suspend_valid_only_mem, +}; + +void __init exynos_pm_init(void) +{ + u32 tmp; + + /* Platform-specific GIC callback */ + gic_arch_extn.irq_set_wake = exynos_irq_set_wake; + + /* All wakeup disable */ + tmp = __raw_readl(S5P_WAKEUP_MASK); + tmp |= ((0xFF << 8) | (0x1F << 1)); + __raw_writel(tmp, S5P_WAKEUP_MASK); + + register_syscore_ops(&exynos_pm_syscore_ops); + suspend_set_ops(&exynos_suspend_ops); +} diff --git a/arch/arm/mach-exynos/regs-pmu.h b/arch/arm/mach-exynos/regs-pmu.h index 7c029ce27711..4f6a2560d022 100644 --- a/arch/arm/mach-exynos/regs-pmu.h +++ b/arch/arm/mach-exynos/regs-pmu.h @@ -26,11 +26,12 @@ #define S5P_USE_STANDBY_WFI0 (1 << 16) #define S5P_USE_STANDBY_WFE0 (1 << 24) -#define S5P_SWRESET S5P_PMUREG(0x0400) #define EXYNOS_SWRESET S5P_PMUREG(0x0400) #define EXYNOS5440_SWRESET S5P_PMUREG(0x00C4) #define S5P_WAKEUP_STAT S5P_PMUREG(0x0600) +#define S5P_EINT_WAKEUP_MASK S5P_PMUREG(0x0604) +#define S5P_WAKEUP_MASK S5P_PMUREG(0x0608) #define S5P_INFORM0 S5P_PMUREG(0x0800) #define S5P_INFORM1 S5P_PMUREG(0x0804) diff --git a/arch/arm/mach-exynos/sleep.S b/arch/arm/mach-exynos/sleep.S new file mode 100644 index 000000000000..a2613e944e10 --- /dev/null +++ b/arch/arm/mach-exynos/sleep.S @@ -0,0 +1,85 @@ +/* + * Copyright (c) 2013 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Exynos low-level resume code + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/linkage.h> +#include <asm/asm-offsets.h> +#include <asm/hardware/cache-l2x0.h> + +#define CPU_MASK 0xff0ffff0 +#define CPU_CORTEX_A9 0x410fc090 + + /* + * The following code is located into the .data section. This is to + * allow l2x0_regs_phys to be accessed with a relative load while we + * can't rely on any MMU translation. We could have put l2x0_regs_phys + * in the .text section as well, but some setups might insist on it to + * be truly read-only. (Reference from: arch/arm/kernel/sleep.S) + */ + .data + .align + + /* + * sleep magic, to allow the bootloader to check for an valid + * image to resume to. Must be the first word before the + * exynos_cpu_resume entry. + */ + + .word 0x2bedf00d + + /* + * exynos_cpu_resume + * + * resume code entry for bootloader to call + */ + +ENTRY(exynos_cpu_resume) +#ifdef CONFIG_CACHE_L2X0 + mrc p15, 0, r0, c0, c0, 0 + ldr r1, =CPU_MASK + and r0, r0, r1 + ldr r1, =CPU_CORTEX_A9 + cmp r0, r1 + bne skip_l2_resume + adr r0, l2x0_regs_phys + ldr r0, [r0] + cmp r0, #0 + beq skip_l2_resume + ldr r1, [r0, #L2X0_R_PHY_BASE] + ldr r2, [r1, #L2X0_CTRL] + tst r2, #0x1 + bne skip_l2_resume + ldr r2, [r0, #L2X0_R_AUX_CTRL] + str r2, [r1, #L2X0_AUX_CTRL] + ldr r2, [r0, #L2X0_R_TAG_LATENCY] + str r2, [r1, #L2X0_TAG_LATENCY_CTRL] + ldr r2, [r0, #L2X0_R_DATA_LATENCY] + str r2, [r1, #L2X0_DATA_LATENCY_CTRL] + ldr r2, [r0, #L2X0_R_PREFETCH_CTRL] + str r2, [r1, #L2X0_PREFETCH_CTRL] + ldr r2, [r0, #L2X0_R_PWR_CTRL] + str r2, [r1, #L2X0_POWER_CTRL] + mov r2, #1 + str r2, [r1, #L2X0_CTRL] +skip_l2_resume: +#endif + b cpu_resume +ENDPROC(exynos_cpu_resume) +#ifdef CONFIG_CACHE_L2X0 + .globl l2x0_regs_phys +l2x0_regs_phys: + .long 0 +#endif diff --git a/arch/arm/mach-integrator/core.c b/arch/arm/mach-integrator/core.c index 00ddf20ed91b..e3f3aca43efb 100644 --- a/arch/arm/mach-integrator/core.c +++ b/arch/arm/mach-integrator/core.c @@ -25,13 +25,11 @@ #include <linux/of.h> #include <linux/of_address.h> -#include <mach/hardware.h> -#include <mach/platform.h> - #include <asm/mach-types.h> #include <asm/mach/time.h> #include <asm/pgtable.h> +#include "hardware.h" #include "cm.h" #include "common.h" diff --git a/arch/arm/mach-integrator/include/mach/platform.h b/arch/arm/mach-integrator/hardware.h index 306d025d9730..857ca5f8b9a6 100644 --- a/arch/arm/mach-integrator/include/mach/platform.h +++ b/arch/arm/mach-integrator/hardware.h @@ -1,4 +1,8 @@ /* + * This file contains the hardware definitions of the Integrator. + * + * Copyright (C) 1998-1999 ARM Limited. + * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or @@ -13,26 +17,28 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -/************************************************************************** - * * Copyright © ARM Limited 1998. All rights reserved. - * ***********************************************************************/ -/* ************************************************************************ - * - * Integrator address map - * - * ***********************************************************************/ +#ifndef INTEGRATOR_HARDWARE_H +#define INTEGRATOR_HARDWARE_H -#ifndef __address_h -#define __address_h 1 +/* + * Where in virtual memory the IO devices (timers, system controllers + * and so on) + */ +#define IO_BASE 0xF0000000 // VA of IO +#define IO_SIZE 0x0B000000 // How much? +#define IO_START INTEGRATOR_HDR_BASE // PA of IO + +/* macro to get at IO space when running virtually */ +#ifdef CONFIG_MMU +#define IO_ADDRESS(x) (((x) & 0x000fffff) | (((x) >> 4) & 0x0ff00000) | IO_BASE) +#else +#define IO_ADDRESS(x) (x) +#endif -/* ======================================================================== - * Integrator definitions - * ======================================================================== - * ------------------------------------------------------------------------ - * Memory definitions - * ------------------------------------------------------------------------ +#define __io_address(n) ((void __iomem *)IO_ADDRESS(n)) + +/* * Integrator memory map - * */ #define INTEGRATOR_BOOT_ROM_LO 0x00000000 #define INTEGRATOR_BOOT_ROM_HI 0x20000000 @@ -40,13 +46,13 @@ #define INTEGRATOR_BOOT_ROM_SIZE SZ_512K /* - * New Core Modules have different amounts of SSRAM, the amount of SSRAM - * fitted can be found in HDR_STAT. + * New Core Modules have different amounts of SSRAM, the amount of SSRAM + * fitted can be found in HDR_STAT. * - * The symbol INTEGRATOR_SSRAM_SIZE is kept, however this now refers to - * the minimum amount of SSRAM fitted on any core module. + * The symbol INTEGRATOR_SSRAM_SIZE is kept, however this now refers to + * the minimum amount of SSRAM fitted on any core module. * - * New Core Modules also alias the SSRAM. + * New Core Modules also alias the SSRAM. * */ #define INTEGRATOR_SSRAM_BASE 0x00000000 @@ -61,7 +67,6 @@ /* * SDRAM is a SIMM therefore the size is not known. - * */ #define INTEGRATOR_SDRAM_BASE 0x00040000 @@ -81,10 +86,8 @@ #define INTEGRATOR_LOGIC_MODULE2_BASE 0xE0000000 #define INTEGRATOR_LOGIC_MODULE3_BASE 0xF0000000 -/* ------------------------------------------------------------------------ - * Integrator header card registers - * ------------------------------------------------------------------------ - * +/* + * Integrator header card registers */ #define INTEGRATOR_HDR_ID_OFFSET 0x00 #define INTEGRATOR_HDR_PROC_OFFSET 0x04 @@ -173,16 +176,12 @@ #define INTEGRATOR_HDR_SDRAM_SPD_OK (1 << 5) - -/* ------------------------------------------------------------------------ - * Integrator system registers - * ------------------------------------------------------------------------ - * +/* + * Integrator system registers */ /* * System Controller - * */ #define INTEGRATOR_SC_ID_OFFSET 0x00 #define INTEGRATOR_SC_OSC_OFFSET 0x04 @@ -223,7 +222,6 @@ /* * External Bus Interface - * */ #define INTEGRATOR_EBI_BASE 0x12000000 @@ -272,7 +270,6 @@ /* * LED's & Switches - * */ #define INTEGRATOR_DBG_ALPHA_OFFSET 0x00 #define INTEGRATOR_DBG_LEDS_OFFSET 0x04 @@ -292,32 +289,25 @@ #define INTEGRATOR_CP_SIC_BASE 0xCA000000 /* SIC */ #define INTEGRATOR_CP_CTL_BASE 0xCB000000 /* CP system control */ -/* ------------------------------------------------------------------------ - * KMI keyboard/mouse definitions - * ------------------------------------------------------------------------ - */ /* PS2 Keyboard interface */ #define KMI0_BASE INTEGRATOR_KBD_BASE /* PS2 Mouse interface */ #define KMI1_BASE INTEGRATOR_MOUSE_BASE -/* KMI definitions are now in include/asm-arm/hardware/amba_kmi.h -- rmk */ - -/* ------------------------------------------------------------------------ - * Integrator Interrupt Controllers - * ------------------------------------------------------------------------ +/* + * Integrator Interrupt Controllers * - * Offsets from interrupt controller base * - * System Controller interrupt controller base is + * Offsets from interrupt controller base + * + * System Controller interrupt controller base is * * INTEGRATOR_IC_BASE + (header_number << 6) * - * Core Module interrupt controller base is + * Core Module interrupt controller base is * * INTEGRATOR_HDR_IC - * */ #define IRQ_STATUS 0 #define IRQ_RAW_STATUS 0x04 @@ -335,25 +325,8 @@ #define FIQ_ENABLE_CLEAR 0x2C -/* ------------------------------------------------------------------------ - * Interrupts - * ------------------------------------------------------------------------ - * - * - * Each Core Module has two interrupts controllers, one on the core module - * itself and one in the system controller on the motherboard. The - * READ_INT macro in target.s reads both interrupt controllers and returns - * a 32 bit bitmask, bits 0 to 23 are interrupts from the system controller - * and bits 24 to 31 are from the core module. - * - * The following definitions relate to the bitmask returned by READ_INT. - * - */ - -/* ------------------------------------------------------------------------ - * LED's - * ------------------------------------------------------------------------ - * +/* + * LED's */ #define GREEN_LED 0x01 #define YELLOW_LED 0x02 @@ -371,7 +344,6 @@ * * Timer 0 runs at bus frequency */ - #define INTEGRATOR_TIMER0_BASE INTEGRATOR_CT_BASE #define INTEGRATOR_TIMER1_BASE (INTEGRATOR_CT_BASE + 0x100) #define INTEGRATOR_TIMER2_BASE (INTEGRATOR_CT_BASE + 0x200) @@ -379,4 +351,4 @@ #define INTEGRATOR_CSR_BASE 0x10000000 #define INTEGRATOR_CSR_SIZE 0x10000000 -#endif +#endif /* INTEGRATOR_HARDWARE_H */ diff --git a/arch/arm/mach-integrator/impd1.c b/arch/arm/mach-integrator/impd1.c index d9b784824808..0e870ea818c4 100644 --- a/arch/arm/mach-integrator/impd1.c +++ b/arch/arm/mach-integrator/impd1.c @@ -25,9 +25,9 @@ #include <linux/slab.h> #include <linux/irqchip/arm-vic.h> -#include <mach/lm.h> -#include <mach/impd1.h> #include <asm/sizes.h> +#include "lm.h" +#include "impd1.h" static int module_id; diff --git a/arch/arm/mach-integrator/include/mach/impd1.h b/arch/arm/mach-integrator/impd1.h index d75de4b14237..76de4dc9bee4 100644 --- a/arch/arm/mach-integrator/include/mach/impd1.h +++ b/arch/arm/mach-integrator/impd1.h @@ -1,6 +1,3 @@ -#define IMPD1_OSC1 0x00 -#define IMPD1_OSC2 0x04 -#define IMPD1_LOCK 0x08 #define IMPD1_LEDS 0x0c #define IMPD1_INT 0x10 #define IMPD1_SW 0x14 @@ -15,4 +12,3 @@ struct device; void impd1_tweak_control(struct device *dev, u32 mask, u32 val); - diff --git a/arch/arm/mach-integrator/include/mach/hardware.h b/arch/arm/mach-integrator/include/mach/hardware.h deleted file mode 100644 index 65fed7c0eb84..000000000000 --- a/arch/arm/mach-integrator/include/mach/hardware.h +++ /dev/null @@ -1,45 +0,0 @@ -/* - * arch/arm/mach-integrator/include/mach/hardware.h - * - * This file contains the hardware definitions of the Integrator. - * - * Copyright (C) 1999 ARM Limited. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#ifndef __ASM_ARCH_HARDWARE_H -#define __ASM_ARCH_HARDWARE_H - -#include <asm/sizes.h> - -/* - * Where in virtual memory the IO devices (timers, system controllers - * and so on) - */ -#define IO_BASE 0xF0000000 // VA of IO -#define IO_SIZE 0x0B000000 // How much? -#define IO_START INTEGRATOR_HDR_BASE // PA of IO - -/* macro to get at IO space when running virtually */ -#ifdef CONFIG_MMU -#define IO_ADDRESS(x) (((x) & 0x000fffff) | (((x) >> 4) & 0x0ff00000) | IO_BASE) -#else -#define IO_ADDRESS(x) (x) -#endif - -#define __io_address(n) ((void __iomem *)IO_ADDRESS(n)) - -#endif - diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c index cc0857cab2e1..dd0cc677d596 100644 --- a/arch/arm/mach-integrator/integrator_ap.c +++ b/arch/arm/mach-integrator/integrator_ap.c @@ -44,23 +44,21 @@ #include <linux/sched_clock.h> #include <linux/clk-provider.h> -#include <mach/hardware.h> -#include <mach/platform.h> #include <asm/hardware/arm_timer.h> #include <asm/setup.h> #include <asm/param.h> /* HZ */ #include <asm/mach-types.h> -#include <mach/lm.h> - #include <asm/mach/arch.h> #include <asm/mach/irq.h> #include <asm/mach/map.h> #include <asm/mach/time.h> +#include "hardware.h" #include "cm.h" #include "common.h" #include "pci_v3.h" +#include "lm.h" /* Base address to the AP system controller */ void __iomem *ap_syscon_base; diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c index 0ad5f60598c8..a938242b0c95 100644 --- a/arch/arm/mach-integrator/integrator_cp.c +++ b/arch/arm/mach-integrator/integrator_cp.c @@ -27,22 +27,18 @@ #include <linux/of_address.h> #include <linux/of_platform.h> #include <linux/sys_soc.h> +#include <linux/sched_clock.h> -#include <mach/hardware.h> -#include <mach/platform.h> #include <asm/setup.h> #include <asm/mach-types.h> - -#include <mach/lm.h> - #include <asm/mach/arch.h> #include <asm/mach/irq.h> #include <asm/mach/map.h> #include <asm/mach/time.h> #include <plat/clcd.h> -#include <plat/sched_clock.h> +#include "hardware.h" #include "cm.h" #include "common.h" @@ -229,11 +225,14 @@ static struct clcd_board clcd_data = { #define REFCOUNTER (__io_address(INTEGRATOR_HDR_BASE) + 0x28) +static u64 notrace intcp_read_sched_clock(void) +{ + return readl(REFCOUNTER); +} + static void __init intcp_init_early(void) { -#ifdef CONFIG_PLAT_VERSATILE_SCHED_CLOCK - versatile_sched_clock_init(REFCOUNTER, 24000000); -#endif + sched_clock_register(intcp_read_sched_clock, 32, 24000000); } static const struct of_device_id fpga_irq_of_match[] __initconst = { diff --git a/arch/arm/mach-integrator/leds.c b/arch/arm/mach-integrator/leds.c index cb6ac58f5e07..f1dcb57a59e2 100644 --- a/arch/arm/mach-integrator/leds.c +++ b/arch/arm/mach-integrator/leds.c @@ -11,9 +11,7 @@ #include <linux/slab.h> #include <linux/leds.h> -#include <mach/hardware.h> -#include <mach/platform.h> - +#include "hardware.h" #include "cm.h" #if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS) diff --git a/arch/arm/mach-integrator/lm.c b/arch/arm/mach-integrator/lm.c index f52c7af31eaa..3f9e9f043168 100644 --- a/arch/arm/mach-integrator/lm.c +++ b/arch/arm/mach-integrator/lm.c @@ -12,7 +12,7 @@ #include <linux/device.h> #include <linux/slab.h> -#include <mach/lm.h> +#include "lm.h" #define to_lm_device(d) container_of(d, struct lm_device, dev) #define to_lm_driver(d) container_of(d, struct lm_driver, drv) diff --git a/arch/arm/mach-integrator/include/mach/lm.h b/arch/arm/mach-integrator/lm.h index 28186b6f2c09..28186b6f2c09 100644 --- a/arch/arm/mach-integrator/include/mach/lm.h +++ b/arch/arm/mach-integrator/lm.h diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c index c5e01b24d9fb..05e1f73a1e8d 100644 --- a/arch/arm/mach-integrator/pci_v3.c +++ b/arch/arm/mach-integrator/pci_v3.c @@ -34,15 +34,13 @@ #include <linux/of_pci.h> #include <video/vga.h> -#include <mach/hardware.h> -#include <mach/platform.h> - #include <asm/mach/map.h> #include <asm/signal.h> #include <asm/mach/pci.h> #include <asm/irq_regs.h> #include "pci_v3.h" +#include "hardware.h" /* * Where in the memory map does PCI live? diff --git a/arch/arm/mach-s3c24xx/include/mach/hardware.h b/arch/arm/mach-s3c24xx/include/mach/hardware.h index a6cc14a092fc..dedd3837c193 100644 --- a/arch/arm/mach-s3c24xx/include/mach/hardware.h +++ b/arch/arm/mach-s3c24xx/include/mach/hardware.h @@ -1,5 +1,4 @@ -/* arch/arm/mach-s3c2410/include/mach/hardware.h - * +/* * Copyright (c) 2003 Simtec Electronics * Ben Dooks <ben@simtec.co.uk> * @@ -17,20 +16,9 @@ extern unsigned int s3c2410_modify_misccr(unsigned int clr, unsigned int chg); -#ifdef CONFIG_CPU_S3C2440 - -extern int s3c2440_set_dsc(unsigned int pin, unsigned int value); - -#endif /* CONFIG_CPU_S3C2440 */ - #endif /* __ASSEMBLY__ */ #include <asm/sizes.h> #include <mach/map.h> -/* machine specific hardware definitions should go after this */ - -/* currently here until moved into config (todo) */ -#define CONFIG_NO_MULTIWORD_IO - #endif /* __ASM_ARCH_HARDWARE_H */ diff --git a/arch/arm/mach-s3c24xx/include/mach/uncompress.h b/arch/arm/mach-s3c24xx/include/mach/uncompress.h deleted file mode 100644 index 7d2ce205dce8..000000000000 --- a/arch/arm/mach-s3c24xx/include/mach/uncompress.h +++ /dev/null @@ -1,57 +0,0 @@ -/* arch/arm/mach-s3c2410/include/mach/uncompress.h - * - * Copyright (c) 2003-2007 Simtec Electronics - * http://armlinux.simtec.co.uk/ - * Ben Dooks <ben@simtec.co.uk> - * - * S3C2410 - uncompress code - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#ifndef __ASM_ARCH_UNCOMPRESS_H -#define __ASM_ARCH_UNCOMPRESS_H - -#include <mach/regs-gpio.h> -#include <mach/map.h> - -/* working in physical space... */ -#undef S3C2410_GPIOREG -#define S3C2410_GPIOREG(x) ((S3C24XX_PA_GPIO + (x))) - -#include <plat/uncompress.h> - -static inline int is_arm926(void) -{ - unsigned int cpuid; - - asm volatile ("mrc p15, 0, %0, c1, c0, 0" : "=r" (cpuid)); - - return ((cpuid & 0xff0) == 0x260); -} - -static void arch_detect_cpu(void) -{ - unsigned int cpuid; - - cpuid = *((volatile unsigned int *)S3C2410_GSTATUS1); - cpuid &= S3C2410_GSTATUS1_IDMASK; - - if (is_arm926() || cpuid == S3C2410_GSTATUS1_2440 || - cpuid == S3C2410_GSTATUS1_2442 || - cpuid == S3C2410_GSTATUS1_2416 || - cpuid == S3C2410_GSTATUS1_2450) { - fifo_mask = S3C2440_UFSTAT_TXMASK; - fifo_max = 63 << S3C2440_UFSTAT_TXSHIFT; - } else { - fifo_mask = S3C2410_UFSTAT_TXMASK; - fifo_max = 15 << S3C2410_UFSTAT_TXSHIFT; - } - - uart_base = (volatile u8 *) S3C_PA_UART + - (S3C_UART_OFFSET * CONFIG_S3C_LOWLEVEL_UART_PORT); -} - -#endif /* __ASM_ARCH_UNCOMPRESS_H */ diff --git a/arch/arm/mach-s3c64xx/include/mach/pm-core.h b/arch/arm/mach-s3c64xx/include/mach/pm-core.h index c0537f40a3d8..a30a1e3ffc6a 100644 --- a/arch/arm/mach-s3c64xx/include/mach/pm-core.h +++ b/arch/arm/mach-s3c64xx/include/mach/pm-core.h @@ -15,6 +15,8 @@ #ifndef __MACH_S3C64XX_PM_CORE_H #define __MACH_S3C64XX_PM_CORE_H __FILE__ +#include <linux/serial_s3c.h> + #include <mach/regs-gpio.h> static inline void s3c_pm_debug_init_uart(void) diff --git a/arch/arm/mach-s3c64xx/include/mach/uncompress.h b/arch/arm/mach-s3c64xx/include/mach/uncompress.h deleted file mode 100644 index 1c956738b42d..000000000000 --- a/arch/arm/mach-s3c64xx/include/mach/uncompress.h +++ /dev/null @@ -1,31 +0,0 @@ -/* arch/arm/mach-s3c6400/include/mach/uncompress.h - * - * Copyright 2008 Openmoko, Inc. - * Copyright 2008 Simtec Electronics - * http://armlinux.simtec.co.uk/ - * Ben Dooks <ben@simtec.co.uk> - * - * S3C6400 - uncompress code - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#ifndef __ASM_ARCH_UNCOMPRESS_H -#define __ASM_ARCH_UNCOMPRESS_H - -#include <mach/map.h> -#include <plat/uncompress.h> - -static void arch_detect_cpu(void) -{ - /* we do not need to do any cpu detection here at the moment. */ - fifo_mask = S3C2440_UFSTAT_TXMASK; - fifo_max = 63 << S3C2440_UFSTAT_TXSHIFT; - - uart_base = (volatile u8 *)S3C_PA_UART + - (S3C_UART_OFFSET * CONFIG_S3C_LOWLEVEL_UART_PORT); -} - -#endif /* __ASM_ARCH_UNCOMPRESS_H */ diff --git a/arch/arm/mach-s3c64xx/pm.c b/arch/arm/mach-s3c64xx/pm.c index b5a66986a529..6b37694fa335 100644 --- a/arch/arm/mach-s3c64xx/pm.c +++ b/arch/arm/mach-s3c64xx/pm.c @@ -332,7 +332,6 @@ static __init int s3c64xx_pm_initcall(void) { pm_cpu_prep = s3c64xx_pm_prepare; pm_cpu_sleep = s3c64xx_cpu_suspend; - pm_uart_udivslot = 1; #ifdef CONFIG_S3C_PM_DEBUG_LED_SMDK gpio_request(S3C64XX_GPN(12), "DEBUG_LED0"); diff --git a/arch/arm/mach-s5p64x0/include/mach/pm-core.h b/arch/arm/mach-s5p64x0/include/mach/pm-core.h index e52f7545d3aa..1e0eb65b2b82 100644 --- a/arch/arm/mach-s5p64x0/include/mach/pm-core.h +++ b/arch/arm/mach-s5p64x0/include/mach/pm-core.h @@ -12,6 +12,8 @@ * published by the Free Software Foundation. */ +#include <linux/serial_s3c.h> + #include <mach/regs-gpio.h> static inline void s3c_pm_debug_init_uart(void) diff --git a/arch/arm/mach-s5p64x0/include/mach/uncompress.h b/arch/arm/mach-s5p64x0/include/mach/uncompress.h deleted file mode 100644 index bbcc3f669ee3..000000000000 --- a/arch/arm/mach-s5p64x0/include/mach/uncompress.h +++ /dev/null @@ -1,34 +0,0 @@ -/* linux/arch/arm/mach-s5p64x0/include/mach/uncompress.h - * - * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * S5P64X0 - uncompress code - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#ifndef __ASM_ARCH_UNCOMPRESS_H -#define __ASM_ARCH_UNCOMPRESS_H - -#include <mach/map.h> -#include <plat/uncompress.h> - -static void arch_detect_cpu(void) -{ - unsigned int chipid; - - chipid = *(const volatile unsigned int __force *) 0xE0100118; - - if ((chipid & 0xff000) == 0x50000) - uart_base = (volatile u8 *)S5P6450_PA_UART(CONFIG_S3C_LOWLEVEL_UART_PORT); - else - uart_base = (volatile u8 *)S5P6440_PA_UART(CONFIG_S3C_LOWLEVEL_UART_PORT); - - fifo_mask = S3C2440_UFSTAT_TXMASK; - fifo_max = 63 << S3C2440_UFSTAT_TXSHIFT; -} - -#endif /* __ASM_ARCH_UNCOMPRESS_H */ diff --git a/arch/arm/mach-s5p64x0/pm.c b/arch/arm/mach-s5p64x0/pm.c index 861e15cea691..ec8229cee716 100644 --- a/arch/arm/mach-s5p64x0/pm.c +++ b/arch/arm/mach-s5p64x0/pm.c @@ -161,7 +161,6 @@ static int s5p64x0_pm_add(struct device *dev, struct subsys_interface *sif) { pm_cpu_prep = s5p64x0_pm_prepare; pm_cpu_sleep = s5p64x0_cpu_suspend; - pm_uart_udivslot = 1; return 0; } diff --git a/arch/arm/mach-s5pc100/include/mach/uncompress.h b/arch/arm/mach-s5pc100/include/mach/uncompress.h deleted file mode 100644 index 720e1339425c..000000000000 --- a/arch/arm/mach-s5pc100/include/mach/uncompress.h +++ /dev/null @@ -1,30 +0,0 @@ -/* arch/arm/mach-s5pc100/include/mach/uncompress.h - * - * Copyright 2009 Samsung Electronics Co. - * Byungho Min <bhmin@samsung.com> - * - * S5PC100 - uncompress code - * - * Based on mach-s3c6400/include/mach/uncompress.h - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#ifndef __ASM_ARCH_UNCOMPRESS_H -#define __ASM_ARCH_UNCOMPRESS_H - -#include <mach/map.h> -#include <plat/uncompress.h> - -static void arch_detect_cpu(void) -{ - /* we do not need to do any cpu detection here at the moment. */ - fifo_mask = S3C2440_UFSTAT_TXMASK; - fifo_max = 63 << S3C2440_UFSTAT_TXSHIFT; - - uart_base = (volatile u8 *)S5P_PA_UART(CONFIG_S3C_LOWLEVEL_UART_PORT); -} - -#endif /* __ASM_ARCH_UNCOMPRESS_H */ diff --git a/arch/arm/mach-s5pv210/include/mach/uncompress.h b/arch/arm/mach-s5pv210/include/mach/uncompress.h deleted file mode 100644 index 231cb07de058..000000000000 --- a/arch/arm/mach-s5pv210/include/mach/uncompress.h +++ /dev/null @@ -1,28 +0,0 @@ -/* linux/arch/arm/mach-s5pv210/include/mach/uncompress.h - * - * Copyright (c) 2010 Samsung Electronics Co., Ltd. - * http://www.samsung.com/ - * - * S5PV210 - uncompress code - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#ifndef __ASM_ARCH_UNCOMPRESS_H -#define __ASM_ARCH_UNCOMPRESS_H - -#include <mach/map.h> -#include <plat/uncompress.h> - -static void arch_detect_cpu(void) -{ - /* we do not need to do any cpu detection here at the moment. */ - fifo_mask = S5PV210_UFSTAT_TXMASK; - fifo_max = 63 << S5PV210_UFSTAT_TXSHIFT; - - uart_base = (volatile u8 *)S5P_PA_UART(CONFIG_S3C_LOWLEVEL_UART_PORT); -} - -#endif /* __ASM_ARCH_UNCOMPRESS_H */ diff --git a/arch/arm/mach-zynq/Kconfig b/arch/arm/mach-zynq/Kconfig index 0e001a489a79..58c2b844e0a3 100644 --- a/arch/arm/mach-zynq/Kconfig +++ b/arch/arm/mach-zynq/Kconfig @@ -9,5 +9,6 @@ config ARCH_ZYNQ select ICST select CADENCE_TTC_TIMER select ARM_GLOBAL_TIMER if !CPU_FREQ + select MFD_SYSCON help Support for Xilinx Zynq ARM Cortex A9 Platform diff --git a/arch/arm/mach-zynq/common.c b/arch/arm/mach-zynq/common.c index a39be8e80856..6fcc584c1a11 100644 --- a/arch/arm/mach-zynq/common.c +++ b/arch/arm/mach-zynq/common.c @@ -19,6 +19,7 @@ #include <linux/cpumask.h> #include <linux/platform_device.h> #include <linux/clk.h> +#include <linux/clk-provider.h> #include <linux/clk/zynq.h> #include <linux/clocksource.h> #include <linux/of_address.h> @@ -75,11 +76,16 @@ static void __init zynq_init_machine(void) platform_device_register(&zynq_cpuidle_device); platform_device_register_full(&devinfo); + + zynq_slcr_init(); } static void __init zynq_timer_init(void) { - zynq_slcr_init(); + zynq_early_slcr_init(); + + zynq_clock_init(); + of_clk_init(NULL); clocksource_of_init(); } diff --git a/arch/arm/mach-zynq/common.h b/arch/arm/mach-zynq/common.h index c22c92cea8cb..b097844d3175 100644 --- a/arch/arm/mach-zynq/common.h +++ b/arch/arm/mach-zynq/common.h @@ -20,6 +20,7 @@ void zynq_secondary_startup(void); extern int zynq_slcr_init(void); +extern int zynq_early_slcr_init(void); extern void zynq_slcr_system_reset(void); extern void zynq_slcr_cpu_stop(int cpu); extern void zynq_slcr_cpu_start(int cpu); @@ -33,7 +34,6 @@ extern int zynq_cpun_start(u32 address, int cpu); extern struct smp_operations zynq_smp_ops __initdata; #endif -extern void __iomem *zynq_slcr_base; extern void __iomem *zynq_scu_base; /* Hotplug */ diff --git a/arch/arm/mach-zynq/slcr.c b/arch/arm/mach-zynq/slcr.c index 1836d5a34606..a37d49a6e657 100644 --- a/arch/arm/mach-zynq/slcr.c +++ b/arch/arm/mach-zynq/slcr.c @@ -15,7 +15,9 @@ */ #include <linux/io.h> +#include <linux/mfd/syscon.h> #include <linux/of_address.h> +#include <linux/regmap.h> #include <linux/clk/zynq.h> #include "common.h" @@ -29,7 +31,56 @@ #define SLCR_A9_CPU_CLKSTOP 0x10 #define SLCR_A9_CPU_RST 0x1 -void __iomem *zynq_slcr_base; +static void __iomem *zynq_slcr_base; +static struct regmap *zynq_slcr_regmap; + +/** + * zynq_slcr_write - Write to a register in SLCR block + * + * @val: Value to write to the register + * @offset: Register offset in SLCR block + * + * Return: a negative value on error, 0 on success + */ +static int zynq_slcr_write(u32 val, u32 offset) +{ + if (!zynq_slcr_regmap) { + writel(val, zynq_slcr_base + offset); + return 0; + } + + return regmap_write(zynq_slcr_regmap, offset, val); +} + +/** + * zynq_slcr_read - Read a register in SLCR block + * + * @val: Pointer to value to be read from SLCR + * @offset: Register offset in SLCR block + * + * Return: a negative value on error, 0 on success + */ +static int zynq_slcr_read(u32 *val, u32 offset) +{ + if (zynq_slcr_regmap) + return regmap_read(zynq_slcr_regmap, offset, val); + + *val = readl(zynq_slcr_base + offset); + + return 0; +} + +/** + * zynq_slcr_unlock - Unlock SLCR registers + * + * Return: a negative value on error, 0 on success + */ +static inline int zynq_slcr_unlock(void) +{ + zynq_slcr_write(SLCR_UNLOCK_MAGIC, SLCR_UNLOCK_OFFSET); + + return 0; +} /** * zynq_slcr_system_reset - Reset the entire system. @@ -43,16 +94,16 @@ void zynq_slcr_system_reset(void) * Note that this seems to require raw i/o * functions or there's a lockup? */ - writel(SLCR_UNLOCK_MAGIC, zynq_slcr_base + SLCR_UNLOCK_OFFSET); + zynq_slcr_unlock(); /* * Clear 0x0F000000 bits of reboot status register to workaround * the FSBL not loading the bitstream after soft-reboot * This is a temporary solution until we know more. */ - reboot = readl(zynq_slcr_base + SLCR_REBOOT_STATUS_OFFSET); - writel(reboot & 0xF0FFFFFF, zynq_slcr_base + SLCR_REBOOT_STATUS_OFFSET); - writel(1, zynq_slcr_base + SLCR_PS_RST_CTRL_OFFSET); + zynq_slcr_read(&reboot, SLCR_REBOOT_STATUS_OFFSET); + zynq_slcr_write(reboot & 0xF0FFFFFF, SLCR_REBOOT_STATUS_OFFSET); + zynq_slcr_write(1, SLCR_PS_RST_CTRL_OFFSET); } /** @@ -61,11 +112,13 @@ void zynq_slcr_system_reset(void) */ void zynq_slcr_cpu_start(int cpu) { - u32 reg = readl(zynq_slcr_base + SLCR_A9_CPU_RST_CTRL_OFFSET); + u32 reg; + + zynq_slcr_read(®, SLCR_A9_CPU_RST_CTRL_OFFSET); reg &= ~(SLCR_A9_CPU_RST << cpu); - writel(reg, zynq_slcr_base + SLCR_A9_CPU_RST_CTRL_OFFSET); + zynq_slcr_write(reg, SLCR_A9_CPU_RST_CTRL_OFFSET); reg &= ~(SLCR_A9_CPU_CLKSTOP << cpu); - writel(reg, zynq_slcr_base + SLCR_A9_CPU_RST_CTRL_OFFSET); + zynq_slcr_write(reg, SLCR_A9_CPU_RST_CTRL_OFFSET); } /** @@ -74,19 +127,40 @@ void zynq_slcr_cpu_start(int cpu) */ void zynq_slcr_cpu_stop(int cpu) { - u32 reg = readl(zynq_slcr_base + SLCR_A9_CPU_RST_CTRL_OFFSET); + u32 reg; + + zynq_slcr_read(®, SLCR_A9_CPU_RST_CTRL_OFFSET); reg |= (SLCR_A9_CPU_CLKSTOP | SLCR_A9_CPU_RST) << cpu; - writel(reg, zynq_slcr_base + SLCR_A9_CPU_RST_CTRL_OFFSET); + zynq_slcr_write(reg, SLCR_A9_CPU_RST_CTRL_OFFSET); } /** - * zynq_slcr_init - * Returns 0 on success, negative errno otherwise. + * zynq_slcr_init - Regular slcr driver init + * + * Return: 0 on success, negative errno otherwise. * * Called early during boot from platform code to remap SLCR area. */ int __init zynq_slcr_init(void) { + zynq_slcr_regmap = syscon_regmap_lookup_by_compatible("xlnx,zynq-slcr"); + if (IS_ERR(zynq_slcr_regmap)) { + pr_err("%s: failed to find zynq-slcr\n", __func__); + return -ENODEV; + } + + return 0; +} + +/** + * zynq_early_slcr_init - Early slcr init function + * + * Return: 0 on success, negative errno otherwise. + * + * Called very early during boot from platform code to unlock SLCR. + */ +int __init zynq_early_slcr_init(void) +{ struct device_node *np; np = of_find_compatible_node(NULL, NULL, "xlnx,zynq-slcr"); @@ -101,13 +175,13 @@ int __init zynq_slcr_init(void) BUG(); } + np->data = (__force void *)zynq_slcr_base; + /* unlock the SLCR so that registers can be changed */ - writel(SLCR_UNLOCK_MAGIC, zynq_slcr_base + SLCR_UNLOCK_OFFSET); + zynq_slcr_unlock(); pr_info("%s mapped to %p\n", np->name, zynq_slcr_base); - zynq_clock_init(zynq_slcr_base); - of_node_put(np); return 0; diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile index 9267d29549b4..25c826ed3b65 100644 --- a/arch/arm/plat-samsung/Makefile +++ b/arch/arm/plat-samsung/Makefile @@ -47,9 +47,11 @@ obj-$(CONFIG_SAMSUNG_DMADEV) += dma-ops.o # PM support +obj-$(CONFIG_PM_SLEEP) += pm-common.o obj-$(CONFIG_SAMSUNG_PM) += pm.o obj-$(CONFIG_SAMSUNG_PM_GPIO) += pm-gpio.o obj-$(CONFIG_SAMSUNG_PM_CHECK) += pm-check.o +obj-$(CONFIG_SAMSUNG_PM_DEBUG) += pm-debug.o obj-$(CONFIG_SAMSUNG_WAKEMASK) += wakeup-mask.o obj-$(CONFIG_SAMSUNG_WDT_RESET) += watchdog-reset.o diff --git a/arch/arm/plat-samsung/clock.c b/arch/arm/plat-samsung/clock.c index ddfebddb4105..d103ac1a52af 100644 --- a/arch/arm/plat-samsung/clock.c +++ b/arch/arm/plat-samsung/clock.c @@ -43,7 +43,6 @@ #include <linux/debugfs.h> #endif -#include <mach/hardware.h> #include <asm/irq.h> #include <plat/cpu-freq.h> diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c index c64a39ac1b04..ead4f1c94058 100644 --- a/arch/arm/plat-samsung/devs.c +++ b/arch/arm/plat-samsung/devs.c @@ -31,6 +31,7 @@ #include <linux/mtd/partitions.h> #include <linux/mmc/host.h> #include <linux/ioport.h> +#include <linux/sizes.h> #include <linux/platform_data/s3c-hsudc.h> #include <linux/platform_data/s3c-hsotg.h> #include <linux/platform_data/dma-s3c24xx.h> @@ -42,7 +43,6 @@ #include <asm/mach/map.h> #include <asm/mach/irq.h> -#include <mach/hardware.h> #include <mach/dma.h> #include <mach/irqs.h> #include <mach/map.h> diff --git a/arch/arm/plat-samsung/include/plat/cpu.h b/arch/arm/plat-samsung/include/plat/cpu.h index 31164b34d4c4..5992b8dd9b89 100644 --- a/arch/arm/plat-samsung/include/plat/cpu.h +++ b/arch/arm/plat-samsung/include/plat/cpu.h @@ -20,6 +20,9 @@ extern unsigned long samsung_cpu_id; +#define S3C2410_CPU_ID 0x32410000 +#define S3C2410_CPU_MASK 0xFFFFFFFF + #define S3C24XX_CPU_ID 0x32400000 #define S3C24XX_CPU_MASK 0xFFF00000 @@ -56,6 +59,7 @@ static inline int is_samsung_##name(void) \ return ((samsung_cpu_id & mask) == (id & mask)); \ } +IS_SAMSUNG_CPU(s3c2410, S3C2410_CPU_ID, S3C2410_CPU_MASK) IS_SAMSUNG_CPU(s3c24xx, S3C24XX_CPU_ID, S3C24XX_CPU_MASK) IS_SAMSUNG_CPU(s3c2412, S3C2412_CPU_ID, S3C2412_CPU_MASK) IS_SAMSUNG_CPU(s3c6400, S3C6400_CPU_ID, S3C64XX_CPU_MASK) @@ -76,8 +80,10 @@ IS_SAMSUNG_CPU(exynos5440, EXYNOS5440_SOC_ID, EXYNOS5_SOC_MASK) defined(CONFIG_CPU_S3C2442) || defined(CONFIG_CPU_S3C244X) || \ defined(CONFIG_CPU_S3C2443) # define soc_is_s3c24xx() is_samsung_s3c24xx() +# define soc_is_s3c2410() is_samsung_s3c2410() #else # define soc_is_s3c24xx() 0 +# define soc_is_s3c2410() 0 #endif #if defined(CONFIG_CPU_S3C2412) @@ -160,6 +166,10 @@ IS_SAMSUNG_CPU(exynos5440, EXYNOS5440_SOC_ID, EXYNOS5_SOC_MASK) # define soc_is_exynos5440() 0 #endif +#define soc_is_exynos4() (soc_is_exynos4210() || soc_is_exynos4212() || \ + soc_is_exynos4412()) +#define soc_is_exynos5() (soc_is_exynos5250() || soc_is_exynos5420()) + #define IODESC_ENT(x) { (unsigned long)S3C24XX_VA_##x, __phys_to_pfn(S3C24XX_PA_##x), S3C24XX_SZ_##x, MT_DEVICE } #ifndef KHZ diff --git a/arch/arm/plat-samsung/include/plat/mfc.h b/arch/arm/plat-samsung/include/plat/mfc.h index e6d7c42d68b6..033654e91e22 100644 --- a/arch/arm/plat-samsung/include/plat/mfc.h +++ b/arch/arm/plat-samsung/include/plat/mfc.h @@ -32,7 +32,4 @@ struct s5p_mfc_dt_meminfo { void __init s5p_mfc_reserve_mem(phys_addr_t rbase, unsigned int rsize, phys_addr_t lbase, unsigned int lsize); -int __init s5p_fdt_find_mfc_mem(unsigned long node, const char *uname, - int depth, void *data); - #endif /* __PLAT_SAMSUNG_MFC_H */ diff --git a/arch/arm/plat-samsung/include/plat/pm-common.h b/arch/arm/plat-samsung/include/plat/pm-common.h new file mode 100644 index 000000000000..8705f9e0e288 --- /dev/null +++ b/arch/arm/plat-samsung/include/plat/pm-common.h @@ -0,0 +1,110 @@ +/* + * Copyright (C) 2013 Samsung Electronics Co., Ltd. + * Tomasz Figa <t.figa@samsung.com> + * Copyright (c) 2004 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Written by Ben Dooks, <ben@simtec.co.uk> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#ifndef __PLAT_SAMSUNG_PM_COMMON_H +#define __PLAT_SAMSUNG_PM_COMMON_H __FILE__ + +#include <linux/irq.h> + +/* sleep save info */ + +/** + * struct sleep_save - save information for shared peripherals. + * @reg: Pointer to the register to save. + * @val: Holder for the value saved from reg. + * + * This describes a list of registers which is used by the pm core and + * other subsystem to save and restore register values over suspend. + */ +struct sleep_save { + void __iomem *reg; + unsigned long val; +}; + +#define SAVE_ITEM(x) \ + { .reg = (x) } + +/* helper functions to save/restore lists of registers. */ + +extern void s3c_pm_do_save(struct sleep_save *ptr, int count); +extern void s3c_pm_do_restore(const struct sleep_save *ptr, int count); +extern void s3c_pm_do_restore_core(const struct sleep_save *ptr, int count); + +/* PM debug functions */ + +/** + * struct pm_uart_save - save block for core UART + * @ulcon: Save value for S3C2410_ULCON + * @ucon: Save value for S3C2410_UCON + * @ufcon: Save value for S3C2410_UFCON + * @umcon: Save value for S3C2410_UMCON + * @ubrdiv: Save value for S3C2410_UBRDIV + * + * Save block for UART registers to be held over sleep and restored if they + * are needed (say by debug). +*/ +struct pm_uart_save { + u32 ulcon; + u32 ucon; + u32 ufcon; + u32 umcon; + u32 ubrdiv; + u32 udivslot; +}; + +#ifdef CONFIG_SAMSUNG_PM_DEBUG +/** + * s3c_pm_dbg() - low level debug function for use in suspend/resume. + * @msg: The message to print. + * + * This function is used mainly to debug the resume process before the system + * can rely on printk/console output. It uses the low-level debugging output + * routine printascii() to do its work. + */ +extern void s3c_pm_dbg(const char *msg, ...); + +/** + * s3c_pm_debug_init() - suspend/resume low level debug initialization. + * @base: Virtual base of UART to use for suspend/resume debugging. + * + * This function needs to be called before S3C_PMDBG() can be used, to set up + * UART port base address and configuration. + */ +extern void s3c_pm_debug_init(void); + +#define S3C_PMDBG(fmt...) s3c_pm_dbg(fmt) + +extern void s3c_pm_save_uarts(void); +extern void s3c_pm_restore_uarts(void); +#else +#define S3C_PMDBG(fmt...) pr_debug(fmt) +#define s3c_pm_debug_init() do { } while (0) + +static inline void s3c_pm_save_uarts(void) { } +static inline void s3c_pm_restore_uarts(void) { } +#endif + +/* suspend memory checking */ + +#ifdef CONFIG_SAMSUNG_PM_CHECK +extern void s3c_pm_check_prepare(void); +extern void s3c_pm_check_restore(void); +extern void s3c_pm_check_cleanup(void); +extern void s3c_pm_check_store(void); +#else +#define s3c_pm_check_prepare() do { } while (0) +#define s3c_pm_check_restore() do { } while (0) +#define s3c_pm_check_cleanup() do { } while (0) +#define s3c_pm_check_store() do { } while (0) +#endif + +#endif diff --git a/arch/arm/plat-samsung/include/plat/pm.h b/arch/arm/plat-samsung/include/plat/pm.h index ff6063f0d5ea..e17d871b934c 100644 --- a/arch/arm/plat-samsung/include/plat/pm.h +++ b/arch/arm/plat-samsung/include/plat/pm.h @@ -15,7 +15,7 @@ * management */ -#include <linux/irq.h> +#include <plat/pm-common.h> struct device; @@ -54,56 +54,10 @@ extern int (*pm_cpu_sleep)(unsigned long); extern unsigned long s3c_pm_flags; -extern unsigned char pm_uart_udivslot; /* true to save UART UDIVSLOT */ - /* from sleep.S */ extern int s3c2410_cpu_suspend(unsigned long); -/* sleep save info */ - -/** - * struct sleep_save - save information for shared peripherals. - * @reg: Pointer to the register to save. - * @val: Holder for the value saved from reg. - * - * This describes a list of registers which is used by the pm core and - * other subsystem to save and restore register values over suspend. - */ -struct sleep_save { - void __iomem *reg; - unsigned long val; -}; - -#define SAVE_ITEM(x) \ - { .reg = (x) } - -/** - * struct pm_uart_save - save block for core UART - * @ulcon: Save value for S3C2410_ULCON - * @ucon: Save value for S3C2410_UCON - * @ufcon: Save value for S3C2410_UFCON - * @umcon: Save value for S3C2410_UMCON - * @ubrdiv: Save value for S3C2410_UBRDIV - * - * Save block for UART registers to be held over sleep and restored if they - * are needed (say by debug). -*/ -struct pm_uart_save { - u32 ulcon; - u32 ucon; - u32 ufcon; - u32 umcon; - u32 ubrdiv; - u32 udivslot; -}; - -/* helper functions to save/restore lists of registers. */ - -extern void s3c_pm_do_save(struct sleep_save *ptr, int count); -extern void s3c_pm_do_restore(const struct sleep_save *ptr, int count); -extern void s3c_pm_do_restore_core(const struct sleep_save *ptr, int count); - #ifdef CONFIG_SAMSUNG_PM extern int s3c_irq_wake(struct irq_data *data, unsigned int state); extern int s3c_irqext_wake(struct irq_data *data, unsigned int state); @@ -114,24 +68,6 @@ extern void s3c_cpu_resume(void); #define s3c_cpu_resume NULL #endif -/* PM debug functions */ - -#ifdef CONFIG_SAMSUNG_PM_DEBUG -/** - * s3c_pm_dbg() - low level debug function for use in suspend/resume. - * @msg: The message to print. - * - * This function is used mainly to debug the resume process before the system - * can rely on printk/console output. It uses the low-level debugging output - * routine printascii() to do its work. - */ -extern void s3c_pm_dbg(const char *msg, ...); - -#define S3C_PMDBG(fmt...) s3c_pm_dbg(fmt) -#else -#define S3C_PMDBG(fmt...) printk(KERN_DEBUG fmt) -#endif - #ifdef CONFIG_S3C_PM_DEBUG_LED_SMDK /** * s3c_pm_debug_smdkled() - Debug PM suspend/resume via SMDK Board LEDs @@ -144,20 +80,6 @@ extern void s3c_pm_debug_smdkled(u32 set, u32 clear); static inline void s3c_pm_debug_smdkled(u32 set, u32 clear) { } #endif /* CONFIG_S3C_PM_DEBUG_LED_SMDK */ -/* suspend memory checking */ - -#ifdef CONFIG_SAMSUNG_PM_CHECK -extern void s3c_pm_check_prepare(void); -extern void s3c_pm_check_restore(void); -extern void s3c_pm_check_cleanup(void); -extern void s3c_pm_check_store(void); -#else -#define s3c_pm_check_prepare() do { } while(0) -#define s3c_pm_check_restore() do { } while(0) -#define s3c_pm_check_cleanup() do { } while(0) -#define s3c_pm_check_store() do { } while(0) -#endif - /** * s3c_pm_configure_extint() - ensure pins are correctly set for IRQ * diff --git a/arch/arm/plat-samsung/include/plat/uncompress.h b/arch/arm/plat-samsung/include/plat/uncompress.h deleted file mode 100644 index 61054fd88d43..000000000000 --- a/arch/arm/plat-samsung/include/plat/uncompress.h +++ /dev/null @@ -1,175 +0,0 @@ -/* arch/arm/plat-samsung/include/plat/uncompress.h - * - * Copyright 2003, 2007 Simtec Electronics - * http://armlinux.simtec.co.uk/ - * Ben Dooks <ben@simtec.co.uk> - * - * S3C - uncompress code - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#ifndef __ASM_PLAT_UNCOMPRESS_H -#define __ASM_PLAT_UNCOMPRESS_H - -typedef unsigned int upf_t; /* cannot include linux/serial_core.h */ - -/* uart setup */ - -unsigned int fifo_mask; -unsigned int fifo_max; - -volatile u8 *uart_base; - -/* forward declerations */ - -static void arch_detect_cpu(void); - -/* defines for UART registers */ - -#include <linux/serial_s3c.h> - -/* working in physical space... */ -#define S3C_WDOGREG(x) ((S3C_PA_WDT + (x))) - -#define S3C2410_WTCON S3C_WDOGREG(0x00) -#define S3C2410_WTDAT S3C_WDOGREG(0x04) -#define S3C2410_WTCNT S3C_WDOGREG(0x08) - -#define S3C2410_WTCON_RSTEN (1 << 0) -#define S3C2410_WTCON_ENABLE (1 << 5) - -#define S3C2410_WTCON_DIV128 (3 << 3) - -#define S3C2410_WTCON_PRESCALE(x) ((x) << 8) - -/* how many bytes we allow into the FIFO at a time in FIFO mode */ -#define FIFO_MAX (14) - -static __inline__ void -uart_wr(unsigned int reg, unsigned int val) -{ - volatile unsigned int *ptr; - - ptr = (volatile unsigned int *)(reg + uart_base); - *ptr = val; -} - -static __inline__ unsigned int -uart_rd(unsigned int reg) -{ - volatile unsigned int *ptr; - - ptr = (volatile unsigned int *)(reg + uart_base); - return *ptr; -} - -/* we can deal with the case the UARTs are being run - * in FIFO mode, so that we don't hold up our execution - * waiting for tx to happen... -*/ - -static void putc(int ch) -{ - if (!config_enabled(CONFIG_DEBUG_LL)) - return; - - if (uart_rd(S3C2410_UFCON) & S3C2410_UFCON_FIFOMODE) { - int level; - - while (1) { - level = uart_rd(S3C2410_UFSTAT); - level &= fifo_mask; - - if (level < fifo_max) - break; - } - - } else { - /* not using fifos */ - - while ((uart_rd(S3C2410_UTRSTAT) & S3C2410_UTRSTAT_TXE) != S3C2410_UTRSTAT_TXE) - barrier(); - } - - /* write byte to transmission register */ - uart_wr(S3C2410_UTXH, ch); -} - -static inline void flush(void) -{ -} - -#define __raw_writel(d, ad) \ - do { \ - *((volatile unsigned int __force *)(ad)) = (d); \ - } while (0) - -#ifdef CONFIG_S3C_BOOT_ERROR_RESET - -static void arch_decomp_error(const char *x) -{ - putstr("\n\n"); - putstr(x); - putstr("\n\n -- System resetting\n"); - - __raw_writel(0x4000, S3C2410_WTDAT); - __raw_writel(0x4000, S3C2410_WTCNT); - __raw_writel(S3C2410_WTCON_ENABLE | S3C2410_WTCON_DIV128 | S3C2410_WTCON_RSTEN | S3C2410_WTCON_PRESCALE(0x40), S3C2410_WTCON); - - while(1); -} - -#define arch_error arch_decomp_error -#endif - -#ifdef CONFIG_S3C_BOOT_UART_FORCE_FIFO -static inline void arch_enable_uart_fifo(void) -{ - u32 fifocon; - - if (!config_enabled(CONFIG_DEBUG_LL)) - return; - - fifocon = uart_rd(S3C2410_UFCON); - - if (!(fifocon & S3C2410_UFCON_FIFOMODE)) { - fifocon |= S3C2410_UFCON_RESETBOTH; - uart_wr(S3C2410_UFCON, fifocon); - - /* wait for fifo reset to complete */ - while (1) { - fifocon = uart_rd(S3C2410_UFCON); - if (!(fifocon & S3C2410_UFCON_RESETBOTH)) - break; - } - - uart_wr(S3C2410_UFCON, S3C2410_UFCON_FIFOMODE); - } -} -#else -#define arch_enable_uart_fifo() do { } while(0) -#endif - - -static void -arch_decomp_setup(void) -{ - /* we may need to setup the uart(s) here if we are not running - * on an BAST... the BAST will have left the uarts configured - * after calling linux. - */ - - arch_detect_cpu(); - - /* Enable the UART FIFOs if they where not enabled and our - * configuration says we should turn them on. - */ - - arch_enable_uart_fifo(); -} - - -#endif /* __ASM_PLAT_UNCOMPRESS_H */ diff --git a/arch/arm/plat-samsung/init.c b/arch/arm/plat-samsung/init.c index c32df1f202eb..a1f925f3121f 100644 --- a/arch/arm/plat-samsung/init.c +++ b/arch/arm/plat-samsung/init.c @@ -25,8 +25,6 @@ #include <linux/platform_device.h> #include <linux/of.h> -#include <mach/hardware.h> - #include <asm/mach/arch.h> #include <asm/mach/map.h> diff --git a/arch/arm/plat-samsung/pm-check.c b/arch/arm/plat-samsung/pm-check.c index 3cbd62666b1e..04aff2c31b46 100644 --- a/arch/arm/plat-samsung/pm-check.c +++ b/arch/arm/plat-samsung/pm-check.c @@ -19,7 +19,7 @@ #include <linux/ioport.h> #include <linux/slab.h> -#include <plat/pm.h> +#include <plat/pm-common.h> #if CONFIG_SAMSUNG_PM_CHECK_CHUNKSIZE < 1 #error CONFIG_SAMSUNG_PM_CHECK_CHUNKSIZE must be a positive non-zero value diff --git a/arch/arm/plat-samsung/pm-common.c b/arch/arm/plat-samsung/pm-common.c new file mode 100644 index 000000000000..515cd53372bd --- /dev/null +++ b/arch/arm/plat-samsung/pm-common.c @@ -0,0 +1,75 @@ +/* + * Copyright (C) 2013 Samsung Electronics Co., Ltd. + * Tomasz Figa <t.figa@samsung.com> + * Copyright (C) 2008 Openmoko, Inc. + * Copyright (C) 2004-2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * Samsung common power management helper functions. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include <linux/io.h> +#include <linux/kernel.h> + +#include <plat/pm-common.h> + +/* helper functions to save and restore register state */ + +/** + * s3c_pm_do_save() - save a set of registers for restoration on resume. + * @ptr: Pointer to an array of registers. + * @count: Size of the ptr array. + * + * Run through the list of registers given, saving their contents in the + * array for later restoration when we wakeup. + */ +void s3c_pm_do_save(struct sleep_save *ptr, int count) +{ + for (; count > 0; count--, ptr++) { + ptr->val = __raw_readl(ptr->reg); + S3C_PMDBG("saved %p value %08lx\n", ptr->reg, ptr->val); + } +} + +/** + * s3c_pm_do_restore() - restore register values from the save list. + * @ptr: Pointer to an array of registers. + * @count: Size of the ptr array. + * + * Restore the register values saved from s3c_pm_do_save(). + * + * Note, we do not use S3C_PMDBG() in here, as the system may not have + * restore the UARTs state yet +*/ + +void s3c_pm_do_restore(const struct sleep_save *ptr, int count) +{ + for (; count > 0; count--, ptr++) { + pr_debug("restore %p (restore %08lx, was %08x)\n", + ptr->reg, ptr->val, __raw_readl(ptr->reg)); + + __raw_writel(ptr->val, ptr->reg); + } +} + +/** + * s3c_pm_do_restore_core() - early restore register values from save list. + * + * This is similar to s3c_pm_do_restore() except we try and minimise the + * side effects of the function in case registers that hardware might need + * to work has been restored. + * + * WARNING: Do not put any debug in here that may effect memory or use + * peripherals, as things may be changing! +*/ + +void s3c_pm_do_restore_core(const struct sleep_save *ptr, int count) +{ + for (; count > 0; count--, ptr++) + __raw_writel(ptr->val, ptr->reg); +} diff --git a/arch/arm/plat-samsung/pm-debug.c b/arch/arm/plat-samsung/pm-debug.c new file mode 100644 index 000000000000..8f19f66388dd --- /dev/null +++ b/arch/arm/plat-samsung/pm-debug.c @@ -0,0 +1,97 @@ +/* + * Copyright (C) 2013 Samsung Electronics Co., Ltd. + * Tomasz Figa <t.figa@samsung.com> + * Copyright (C) 2008 Openmoko, Inc. + * Copyright (C) 2004-2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * Samsung common power management (suspend to RAM) debug support + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/serial_core.h> +#include <linux/io.h> + +#include <asm/mach/map.h> + +#include <plat/cpu.h> +#include <plat/pm-common.h> + +#ifdef CONFIG_SAMSUNG_ATAGS +#include <mach/pm-core.h> +#else +static inline void s3c_pm_debug_init_uart(void) {} +static inline void s3c_pm_arch_update_uart(void __iomem *regs, + struct pm_uart_save *save) {} +#endif + +static struct pm_uart_save uart_save; + +extern void printascii(const char *); + +void s3c_pm_dbg(const char *fmt, ...) +{ + va_list va; + char buff[256]; + + va_start(va, fmt); + vsnprintf(buff, sizeof(buff), fmt, va); + va_end(va); + + printascii(buff); +} + +void s3c_pm_debug_init(void) +{ + /* restart uart clocks so we can use them to output */ + s3c_pm_debug_init_uart(); +} + +static inline void __iomem *s3c_pm_uart_base(void) +{ + unsigned long paddr; + unsigned long vaddr; + + debug_ll_addr(&paddr, &vaddr); + + return (void __iomem *)vaddr; +} + +void s3c_pm_save_uarts(void) +{ + void __iomem *regs = s3c_pm_uart_base(); + struct pm_uart_save *save = &uart_save; + + save->ulcon = __raw_readl(regs + S3C2410_ULCON); + save->ucon = __raw_readl(regs + S3C2410_UCON); + save->ufcon = __raw_readl(regs + S3C2410_UFCON); + save->umcon = __raw_readl(regs + S3C2410_UMCON); + save->ubrdiv = __raw_readl(regs + S3C2410_UBRDIV); + + if (!soc_is_s3c2410()) + save->udivslot = __raw_readl(regs + S3C2443_DIVSLOT); + + S3C_PMDBG("UART[%p]: ULCON=%04x, UCON=%04x, UFCON=%04x, UBRDIV=%04x\n", + regs, save->ulcon, save->ucon, save->ufcon, save->ubrdiv); +} + +void s3c_pm_restore_uarts(void) +{ + void __iomem *regs = s3c_pm_uart_base(); + struct pm_uart_save *save = &uart_save; + + s3c_pm_arch_update_uart(regs, save); + + __raw_writel(save->ulcon, regs + S3C2410_ULCON); + __raw_writel(save->ucon, regs + S3C2410_UCON); + __raw_writel(save->ufcon, regs + S3C2410_UFCON); + __raw_writel(save->umcon, regs + S3C2410_UMCON); + __raw_writel(save->ubrdiv, regs + S3C2410_UBRDIV); + + if (!soc_is_s3c2410()) + __raw_writel(save->udivslot, regs + S3C2443_DIVSLOT); +} diff --git a/arch/arm/plat-samsung/pm.c b/arch/arm/plat-samsung/pm.c index ae9baa2d6381..f8c0f9797dcf 100644 --- a/arch/arm/plat-samsung/pm.c +++ b/arch/arm/plat-samsung/pm.c @@ -17,7 +17,6 @@ #include <linux/errno.h> #include <linux/delay.h> #include <linux/of.h> -#include <linux/serial_core.h> #include <linux/serial_s3c.h> #include <linux/io.h> @@ -25,7 +24,6 @@ #include <asm/suspend.h> #ifdef CONFIG_SAMSUNG_ATAGS -#include <mach/hardware.h> #include <mach/map.h> #ifndef CONFIG_ARCH_EXYNOS #include <mach/regs-clock.h> @@ -43,93 +41,6 @@ unsigned long s3c_pm_flags; -/* Debug code: - * - * This code supports debug output to the low level UARTs for use on - * resume before the console layer is available. -*/ - -#ifdef CONFIG_SAMSUNG_PM_DEBUG -extern void printascii(const char *); - -void s3c_pm_dbg(const char *fmt, ...) -{ - va_list va; - char buff[256]; - - va_start(va, fmt); - vsnprintf(buff, sizeof(buff), fmt, va); - va_end(va); - - printascii(buff); -} - -static inline void s3c_pm_debug_init(void) -{ - /* restart uart clocks so we can use them to output */ - s3c_pm_debug_init_uart(); -} - -#else -#define s3c_pm_debug_init() do { } while(0) - -#endif /* CONFIG_SAMSUNG_PM_DEBUG */ - -/* Save the UART configurations if we are configured for debug. */ - -unsigned char pm_uart_udivslot; - -#ifdef CONFIG_SAMSUNG_PM_DEBUG - -static struct pm_uart_save uart_save; - -static void s3c_pm_save_uart(unsigned int uart, struct pm_uart_save *save) -{ - void __iomem *regs = S3C_VA_UARTx(uart); - - save->ulcon = __raw_readl(regs + S3C2410_ULCON); - save->ucon = __raw_readl(regs + S3C2410_UCON); - save->ufcon = __raw_readl(regs + S3C2410_UFCON); - save->umcon = __raw_readl(regs + S3C2410_UMCON); - save->ubrdiv = __raw_readl(regs + S3C2410_UBRDIV); - - if (pm_uart_udivslot) - save->udivslot = __raw_readl(regs + S3C2443_DIVSLOT); - - S3C_PMDBG("UART[%d]: ULCON=%04x, UCON=%04x, UFCON=%04x, UBRDIV=%04x\n", - uart, save->ulcon, save->ucon, save->ufcon, save->ubrdiv); -} - -static void s3c_pm_save_uarts(void) -{ - s3c_pm_save_uart(CONFIG_DEBUG_S3C_UART, &uart_save); -} - -static void s3c_pm_restore_uart(unsigned int uart, struct pm_uart_save *save) -{ - void __iomem *regs = S3C_VA_UARTx(uart); - - s3c_pm_arch_update_uart(regs, save); - - __raw_writel(save->ulcon, regs + S3C2410_ULCON); - __raw_writel(save->ucon, regs + S3C2410_UCON); - __raw_writel(save->ufcon, regs + S3C2410_UFCON); - __raw_writel(save->umcon, regs + S3C2410_UMCON); - __raw_writel(save->ubrdiv, regs + S3C2410_UBRDIV); - - if (pm_uart_udivslot) - __raw_writel(save->udivslot, regs + S3C2443_DIVSLOT); -} - -static void s3c_pm_restore_uarts(void) -{ - s3c_pm_restore_uart(CONFIG_DEBUG_S3C_UART, &uart_save); -} -#else -static void s3c_pm_save_uarts(void) { } -static void s3c_pm_restore_uarts(void) { } -#endif - /* The IRQ ext-int code goes here, it is too small to currently bother * with its own file. */ @@ -154,62 +65,6 @@ int s3c_irqext_wake(struct irq_data *data, unsigned int state) return 0; } -/* helper functions to save and restore register state */ - -/** - * s3c_pm_do_save() - save a set of registers for restoration on resume. - * @ptr: Pointer to an array of registers. - * @count: Size of the ptr array. - * - * Run through the list of registers given, saving their contents in the - * array for later restoration when we wakeup. - */ -void s3c_pm_do_save(struct sleep_save *ptr, int count) -{ - for (; count > 0; count--, ptr++) { - ptr->val = __raw_readl(ptr->reg); - S3C_PMDBG("saved %p value %08lx\n", ptr->reg, ptr->val); - } -} - -/** - * s3c_pm_do_restore() - restore register values from the save list. - * @ptr: Pointer to an array of registers. - * @count: Size of the ptr array. - * - * Restore the register values saved from s3c_pm_do_save(). - * - * Note, we do not use S3C_PMDBG() in here, as the system may not have - * restore the UARTs state yet -*/ - -void s3c_pm_do_restore(const struct sleep_save *ptr, int count) -{ - for (; count > 0; count--, ptr++) { - printk(KERN_DEBUG "restore %p (restore %08lx, was %08x)\n", - ptr->reg, ptr->val, __raw_readl(ptr->reg)); - - __raw_writel(ptr->val, ptr->reg); - } -} - -/** - * s3c_pm_do_restore_core() - early restore register values from save list. - * - * This is similar to s3c_pm_do_restore() except we try and minimise the - * side effects of the function in case registers that hardware might need - * to work has been restored. - * - * WARNING: Do not put any debug in here that may effect memory or use - * peripherals, as things may be changing! -*/ - -void s3c_pm_do_restore_core(const struct sleep_save *ptr, int count) -{ - for (; count > 0; count--, ptr++) - __raw_writel(ptr->val, ptr->reg); -} - /* s3c2410_pm_show_resume_irqs * * print any IRQs asserted at resume time (ie, we woke from) diff --git a/arch/arm/plat-samsung/s5p-dev-mfc.c b/arch/arm/plat-samsung/s5p-dev-mfc.c index ad51f85fbd01..98087b655df0 100644 --- a/arch/arm/plat-samsung/s5p-dev-mfc.c +++ b/arch/arm/plat-samsung/s5p-dev-mfc.c @@ -122,32 +122,35 @@ device_initcall(s5p_mfc_memory_init); #endif #ifdef CONFIG_OF -int __init s5p_fdt_find_mfc_mem(unsigned long node, const char *uname, +int __init s5p_fdt_alloc_mfc_mem(unsigned long node, const char *uname, int depth, void *data) { __be32 *prop; unsigned long len; - struct s5p_mfc_dt_meminfo *mfc_mem = data; + struct s5p_mfc_dt_meminfo mfc_mem; if (!data) return 0; - if (!of_flat_dt_is_compatible(node, mfc_mem->compatible)) + if (!of_flat_dt_is_compatible(node, data)) return 0; prop = of_get_flat_dt_prop(node, "samsung,mfc-l", &len); if (!prop || (len != 2 * sizeof(unsigned long))) return 0; - mfc_mem->loff = be32_to_cpu(prop[0]); - mfc_mem->lsize = be32_to_cpu(prop[1]); + mfc_mem.loff = be32_to_cpu(prop[0]); + mfc_mem.lsize = be32_to_cpu(prop[1]); prop = of_get_flat_dt_prop(node, "samsung,mfc-r", &len); if (!prop || (len != 2 * sizeof(unsigned long))) return 0; - mfc_mem->roff = be32_to_cpu(prop[0]); - mfc_mem->rsize = be32_to_cpu(prop[1]); + mfc_mem.roff = be32_to_cpu(prop[0]); + mfc_mem.rsize = be32_to_cpu(prop[1]); + + s5p_mfc_reserve_mem(mfc_mem.roff, mfc_mem.rsize, + mfc_mem.loff, mfc_mem.lsize); return 1; } diff --git a/arch/arm/plat-samsung/s5p-dev-uart.c b/arch/arm/plat-samsung/s5p-dev-uart.c index cafa3deddcc1..8c4487af98c8 100644 --- a/arch/arm/plat-samsung/s5p-dev-uart.c +++ b/arch/arm/plat-samsung/s5p-dev-uart.c @@ -18,7 +18,6 @@ #include <asm/mach/arch.h> #include <asm/mach/irq.h> -#include <mach/hardware.h> #include <mach/map.h> #include <plat/devs.h> diff --git a/arch/arm/plat-samsung/s5p-sleep.S b/arch/arm/plat-samsung/s5p-sleep.S index a030e7301da8..c5001659bdf8 100644 --- a/arch/arm/plat-samsung/s5p-sleep.S +++ b/arch/arm/plat-samsung/s5p-sleep.S @@ -23,18 +23,7 @@ #include <linux/linkage.h> #include <asm/asm-offsets.h> -#include <asm/hardware/cache-l2x0.h> -#define CPU_MASK 0xff0ffff0 -#define CPU_CORTEX_A9 0x410fc090 - -/* - * The following code is located into the .data section. This is to - * allow l2x0_regs_phys to be accessed with a relative load while we - * can't rely on any MMU translation. We could have put l2x0_regs_phys - * in the .text section as well, but some setups might insist on it to - * be truly read-only. (Reference from: arch/arm/kernel/sleep.S) - */ .data .align @@ -53,37 +42,5 @@ */ ENTRY(s3c_cpu_resume) -#ifdef CONFIG_CACHE_L2X0 - mrc p15, 0, r0, c0, c0, 0 - ldr r1, =CPU_MASK - and r0, r0, r1 - ldr r1, =CPU_CORTEX_A9 - cmp r0, r1 - bne resume_l2on - adr r0, l2x0_regs_phys - ldr r0, [r0] - ldr r1, [r0, #L2X0_R_PHY_BASE] - ldr r2, [r1, #L2X0_CTRL] - tst r2, #0x1 - bne resume_l2on - ldr r2, [r0, #L2X0_R_AUX_CTRL] - str r2, [r1, #L2X0_AUX_CTRL] - ldr r2, [r0, #L2X0_R_TAG_LATENCY] - str r2, [r1, #L2X0_TAG_LATENCY_CTRL] - ldr r2, [r0, #L2X0_R_DATA_LATENCY] - str r2, [r1, #L2X0_DATA_LATENCY_CTRL] - ldr r2, [r0, #L2X0_R_PREFETCH_CTRL] - str r2, [r1, #L2X0_PREFETCH_CTRL] - ldr r2, [r0, #L2X0_R_PWR_CTRL] - str r2, [r1, #L2X0_POWER_CTRL] - mov r2, #1 - str r2, [r1, #L2X0_CTRL] -resume_l2on: -#endif b cpu_resume ENDPROC(s3c_cpu_resume) -#ifdef CONFIG_CACHE_L2X0 - .globl l2x0_regs_phys -l2x0_regs_phys: - .long 0 -#endif |