diff options
Diffstat (limited to 'arch/arm/mach-exynos')
| -rw-r--r-- | arch/arm/mach-exynos/Kconfig | 92 | ||||
| -rw-r--r-- | arch/arm/mach-exynos/Makefile | 9 | ||||
| -rw-r--r-- | arch/arm/mach-exynos/common.h | 99 | ||||
| -rw-r--r-- | arch/arm/mach-exynos/exynos.c | 16 | ||||
| -rw-r--r-- | arch/arm/mach-exynos/firmware.c | 20 | ||||
| -rw-r--r-- | arch/arm/mach-exynos/hotplug.c | 65 | ||||
| -rw-r--r-- | arch/arm/mach-exynos/platsmp.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-exynos/pm.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-exynos/pmu.c | 2 |
9 files changed, 177 insertions, 131 deletions
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig index 1602abc..d58995c9 100644 --- a/arch/arm/mach-exynos/Kconfig +++ b/arch/arm/mach-exynos/Kconfig @@ -7,97 +7,102 @@ # Configuration options for the EXYNOS4 +config ARCH_EXYNOS + bool "Samsung EXYNOS" if ARCH_MULTI_V7 + select ARCH_HAS_BANDGAP + select ARCH_HAS_CPUFREQ + select ARCH_HAS_HOLES_MEMORYMODEL + select ARCH_REQUIRE_GPIOLIB + select ARM_AMBA + select ARM_GIC + select COMMON_CLK_SAMSUNG + select HAVE_ARM_SCU if SMP + select HAVE_S3C2410_I2C if I2C + select HAVE_S3C2410_WATCHDOG if WATCHDOG + select HAVE_S3C_RTC if RTC_CLASS + select PINCTRL + select PINCTRL_EXYNOS + select PM_GENERIC_DOMAINS if PM_RUNTIME + select S5P_DEV_MFC + select SRAM + help + Support for SAMSUNG EXYNOS SoCs (EXYNOS4/5) + if ARCH_EXYNOS menu "SAMSUNG EXYNOS SoCs Support" +config ARCH_EXYNOS3 + bool "SAMSUNG EXYNOS3" + select ARM_CPU_SUSPEND if PM + help + Samsung EXYNOS3 (Crotex-A7) SoC based systems + config ARCH_EXYNOS4 bool "SAMSUNG EXYNOS4" default y - select ARM_AMBA - select CLKSRC_OF + select ARM_CPU_SUSPEND if PM_SLEEP select CLKSRC_SAMSUNG_PWM if CPU_EXYNOS4210 select CPU_EXYNOS4210 select GIC_NON_BANKED select KEYBOARD_SAMSUNG if INPUT_KEYBOARD - select HAVE_ARM_SCU if SMP - select HAVE_SMP select MIGHT_HAVE_CACHE_L2X0 - select PINCTRL - select PM_GENERIC_DOMAINS if PM_RUNTIME - select S5P_DEV_MFC help - Samsung EXYNOS4 SoCs based systems + Samsung EXYNOS4 (Cortex-A9) SoC based systems config ARCH_EXYNOS5 bool "SAMSUNG EXYNOS5" - select ARM_AMBA - select CLKSRC_OF - select HAVE_ARM_SCU if SMP - select HAVE_SMP - select PINCTRL + default y help - Samsung EXYNOS5 (Cortex-A15) SoC based systems + Samsung EXYNOS5 (Cortex-A15/A7) SoC based systems comment "EXYNOS SoCs" +config SOC_EXYNOS3250 + bool "SAMSUNG EXYNOS3250" + default y + depends on ARCH_EXYNOS3 + config CPU_EXYNOS4210 bool "SAMSUNG EXYNOS4210" default y depends on ARCH_EXYNOS4 - select ARCH_HAS_BANDGAP - select ARM_CPU_SUSPEND if PM_SLEEP - select PINCTRL_EXYNOS - select SAMSUNG_DMADEV - help - Enable EXYNOS4210 CPU support config SOC_EXYNOS4212 bool "SAMSUNG EXYNOS4212" default y depends on ARCH_EXYNOS4 - select ARCH_HAS_BANDGAP - select PINCTRL_EXYNOS - select SAMSUNG_DMADEV - help - Enable EXYNOS4212 SoC support config SOC_EXYNOS4412 bool "SAMSUNG EXYNOS4412" default y depends on ARCH_EXYNOS4 - select ARCH_HAS_BANDGAP - select PINCTRL_EXYNOS - select SAMSUNG_DMADEV - help - Enable EXYNOS4412 SoC support config SOC_EXYNOS5250 bool "SAMSUNG EXYNOS5250" default y depends on ARCH_EXYNOS5 - select ARCH_HAS_BANDGAP - select PINCTRL_EXYNOS - select PM_GENERIC_DOMAINS if PM_RUNTIME - select S5P_DEV_MFC - select SAMSUNG_DMADEV - help - Enable EXYNOS5250 SoC support + +config SOC_EXYNOS5260 + bool "SAMSUNG EXYNOS5260" + default y + depends on ARCH_EXYNOS5 + +config SOC_EXYNOS5410 + bool "SAMSUNG EXYNOS5410" + default y + depends on ARCH_EXYNOS5 config SOC_EXYNOS5420 bool "SAMSUNG EXYNOS5420" default y depends on ARCH_EXYNOS5 - select PM_GENERIC_DOMAINS if PM_RUNTIME - help - Enable EXYNOS5420 SoC support config SOC_EXYNOS5440 bool "SAMSUNG EXYNOS5440" default y depends on ARCH_EXYNOS5 select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE - select ARCH_HAS_BANDGAP select ARCH_HAS_OPP select HAVE_ARM_ARCH_TIMER select AUTO_ZRELADDR @@ -108,6 +113,11 @@ config SOC_EXYNOS5440 help Enable EXYNOS5440 SoC support +config SOC_EXYNOS5800 + bool "SAMSUNG EXYNOS5800" + default y + depends on SOC_EXYNOS5420 + endmenu config EXYNOS5420_MCPM diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile index 3705048..6f36086 100644 --- a/arch/arm/mach-exynos/Makefile +++ b/arch/arm/mach-exynos/Makefile @@ -5,6 +5,8 @@ # # Licensed under GPLv2 +ccflags-$(CONFIG_ARCH_MULTIPLATFORM) += -I$(srctree)/$(src)/include -I$(srctree)/arch/arm/plat-samsung/include + obj-y := obj-m := obj-n := @@ -12,20 +14,15 @@ obj- := # Core -obj-$(CONFIG_ARCH_EXYNOS) += exynos.o +obj-$(CONFIG_ARCH_EXYNOS) += exynos.o pmu.o exynos-smc.o firmware.o obj-$(CONFIG_PM_SLEEP) += pm.o sleep.o obj-$(CONFIG_PM_GENERIC_DOMAINS) += pm_domains.o -obj-$(CONFIG_ARCH_EXYNOS) += pmu.o - obj-$(CONFIG_SMP) += platsmp.o headsmp.o obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o -obj-$(CONFIG_ARCH_EXYNOS) += exynos-smc.o -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) diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h index 5848d3c..80b90e3 100644 --- a/arch/arm/mach-exynos/common.h +++ b/arch/arm/mach-exynos/common.h @@ -15,6 +15,102 @@ #include <linux/reboot.h> #include <linux/of.h> +#define EXYNOS3250_SOC_ID 0xE3472000 +#define EXYNOS3_SOC_MASK 0xFFFFF000 + +#define EXYNOS4210_CPU_ID 0x43210000 +#define EXYNOS4212_CPU_ID 0x43220000 +#define EXYNOS4412_CPU_ID 0xE4412200 +#define EXYNOS4_CPU_MASK 0xFFFE0000 + +#define EXYNOS5250_SOC_ID 0x43520000 +#define EXYNOS5410_SOC_ID 0xE5410000 +#define EXYNOS5420_SOC_ID 0xE5420000 +#define EXYNOS5440_SOC_ID 0xE5440000 +#define EXYNOS5800_SOC_ID 0xE5422000 +#define EXYNOS5_SOC_MASK 0xFFFFF000 + +extern unsigned long samsung_cpu_id; + +#define IS_SAMSUNG_CPU(name, id, mask) \ +static inline int is_samsung_##name(void) \ +{ \ + return ((samsung_cpu_id & mask) == (id & mask)); \ +} + +IS_SAMSUNG_CPU(exynos3250, EXYNOS3250_SOC_ID, EXYNOS3_SOC_MASK) +IS_SAMSUNG_CPU(exynos4210, EXYNOS4210_CPU_ID, EXYNOS4_CPU_MASK) +IS_SAMSUNG_CPU(exynos4212, EXYNOS4212_CPU_ID, EXYNOS4_CPU_MASK) +IS_SAMSUNG_CPU(exynos4412, EXYNOS4412_CPU_ID, EXYNOS4_CPU_MASK) +IS_SAMSUNG_CPU(exynos5250, EXYNOS5250_SOC_ID, EXYNOS5_SOC_MASK) +IS_SAMSUNG_CPU(exynos5410, EXYNOS5410_SOC_ID, EXYNOS5_SOC_MASK) +IS_SAMSUNG_CPU(exynos5420, EXYNOS5420_SOC_ID, EXYNOS5_SOC_MASK) +IS_SAMSUNG_CPU(exynos5440, EXYNOS5440_SOC_ID, EXYNOS5_SOC_MASK) +IS_SAMSUNG_CPU(exynos5800, EXYNOS5800_SOC_ID, EXYNOS5_SOC_MASK) + +#if defined(CONFIG_SOC_EXYNOS3250) +# define soc_is_exynos3250() is_samsung_exynos3250() +#else +# define soc_is_exynos3250() 0 +#endif + +#if defined(CONFIG_CPU_EXYNOS4210) +# define soc_is_exynos4210() is_samsung_exynos4210() +#else +# define soc_is_exynos4210() 0 +#endif + +#if defined(CONFIG_SOC_EXYNOS4212) +# define soc_is_exynos4212() is_samsung_exynos4212() +#else +# define soc_is_exynos4212() 0 +#endif + +#if defined(CONFIG_SOC_EXYNOS4412) +# define soc_is_exynos4412() is_samsung_exynos4412() +#else +# define soc_is_exynos4412() 0 +#endif + +#define EXYNOS4210_REV_0 (0x0) +#define EXYNOS4210_REV_1_0 (0x10) +#define EXYNOS4210_REV_1_1 (0x11) + +#if defined(CONFIG_SOC_EXYNOS5250) +# define soc_is_exynos5250() is_samsung_exynos5250() +#else +# define soc_is_exynos5250() 0 +#endif + +#if defined(CONFIG_SOC_EXYNOS5410) +# define soc_is_exynos5410() is_samsung_exynos5410() +#else +# define soc_is_exynos5410() 0 +#endif + +#if defined(CONFIG_SOC_EXYNOS5420) +# define soc_is_exynos5420() is_samsung_exynos5420() +#else +# define soc_is_exynos5420() 0 +#endif + +#if defined(CONFIG_SOC_EXYNOS5440) +# define soc_is_exynos5440() is_samsung_exynos5440() +#else +# define soc_is_exynos5440() 0 +#endif + +#if defined(CONFIG_SOC_EXYNOS5800) +# define soc_is_exynos5800() is_samsung_exynos5800() +#else +# define soc_is_exynos5800() 0 +#endif + +#define soc_is_exynos4() (soc_is_exynos4210() || soc_is_exynos4212() || \ + soc_is_exynos4412()) +#define soc_is_exynos5() (soc_is_exynos5250() || soc_is_exynos5410() || \ + soc_is_exynos5420() || soc_is_exynos5800()) + void mct_init(void __iomem *base, int irq_g0, int irq_l0, int irq_l1); struct map_desc; @@ -72,4 +168,7 @@ extern void exynos_cluster_power_up(int cluster); extern int exynos_cluster_power_state(int cluster); extern void exynos_enter_aftr(void); +extern void s5p_init_cpu(void __iomem *cpuid_addr); +extern unsigned int samsung_rev(void); + #endif /* __ARCH_ARM_MACH_EXYNOS_COMMON_H */ diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c index 7d9d8762..8cf0c99 100644 --- a/arch/arm/mach-exynos/exynos.c +++ b/arch/arm/mach-exynos/exynos.c @@ -26,8 +26,6 @@ #include <asm/mach/map.h> #include <asm/memory.h> -#include <plat/cpu.h> - #include "common.h" #include "mfc.h" #include "regs-pmu.h" @@ -248,17 +246,6 @@ void __init exynos_init_io(void) exynos_map_io(); } -struct bus_type exynos_subsys = { - .name = "exynos-core", - .dev_name = "exynos-core", -}; - -static int __init exynos_core_init(void) -{ - return subsys_system_register(&exynos_subsys, NULL); -} -core_initcall(exynos_core_init); - static int __init exynos4_l2x0_cache_init(void) { int ret; @@ -310,12 +297,15 @@ static void __init exynos_dt_machine_init(void) } static char const *exynos_dt_compat[] __initconst = { + "samsung,exynos3", + "samsung,exynos3250", "samsung,exynos4", "samsung,exynos4210", "samsung,exynos4212", "samsung,exynos4412", "samsung,exynos5", "samsung,exynos5250", + "samsung,exynos5260", "samsung,exynos5420", "samsung,exynos5440", NULL diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c index 483dfcd..eb91d23 100644 --- a/arch/arm/mach-exynos/firmware.c +++ b/arch/arm/mach-exynos/firmware.c @@ -29,6 +29,21 @@ static int exynos_do_idle(void) static int exynos_cpu_boot(int cpu) { + /* + * Exynos3250 doesn't need to send smc command for secondary CPU boot + * because Exynos3250 removes WFE in secure mode. + */ + if (soc_is_exynos3250()) + return 0; + + /* + * The second parameter of SMC_CMD_CPU1BOOT command means CPU id. + * But, Exynos4212 has only one secondary CPU so second parameter + * isn't used for informing secure firmware about CPU id. + */ + if (soc_is_exynos4212()) + cpu = 0; + exynos_smc(SMC_CMD_CPU1BOOT, cpu, 0, 0); return 0; } @@ -40,7 +55,10 @@ static int exynos_set_cpu_boot_addr(int cpu, unsigned long boot_addr) if (!sysram_ns_base_addr) return -ENODEV; - boot_reg = sysram_ns_base_addr + 0x1c + 4*cpu; + boot_reg = sysram_ns_base_addr + 0x1c; + + if (!soc_is_exynos4212() && !soc_is_exynos3250()) + boot_reg += 4*cpu; __raw_writel(boot_addr, boot_reg); return 0; diff --git a/arch/arm/mach-exynos/hotplug.c b/arch/arm/mach-exynos/hotplug.c index 609c99c..69fa483 100644 --- a/arch/arm/mach-exynos/hotplug.c +++ b/arch/arm/mach-exynos/hotplug.c @@ -19,61 +19,9 @@ #include <asm/cp15.h> #include <asm/smp_plat.h> -#include <plat/cpu.h> - #include "common.h" #include "regs-pmu.h" -static inline void cpu_enter_lowpower_a9(void) -{ - unsigned int v; - - asm volatile( - " mcr p15, 0, %1, c7, c5, 0\n" - " mcr p15, 0, %1, c7, c10, 4\n" - /* - * Turn off coherency - */ - " mrc p15, 0, %0, c1, c0, 1\n" - " bic %0, %0, %3\n" - " mcr p15, 0, %0, c1, c0, 1\n" - " mrc p15, 0, %0, c1, c0, 0\n" - " bic %0, %0, %2\n" - " mcr p15, 0, %0, c1, c0, 0\n" - : "=&r" (v) - : "r" (0), "Ir" (CR_C), "Ir" (0x40) - : "cc"); -} - -static inline void cpu_enter_lowpower_a15(void) -{ - unsigned int v; - - asm volatile( - " mrc p15, 0, %0, c1, c0, 0\n" - " bic %0, %0, %1\n" - " mcr p15, 0, %0, c1, c0, 0\n" - : "=&r" (v) - : "Ir" (CR_C) - : "cc"); - - flush_cache_louis(); - - asm volatile( - /* - * Turn off coherency - */ - " mrc p15, 0, %0, c1, c0, 1\n" - " bic %0, %0, %1\n" - " mcr p15, 0, %0, c1, c0, 1\n" - : "=&r" (v) - : "Ir" (0x40) - : "cc"); - - isb(); - dsb(); -} - static inline void cpu_leave_lowpower(void) { unsigned int v; @@ -132,19 +80,8 @@ static inline void platform_do_lowpower(unsigned int cpu, int *spurious) void __ref exynos_cpu_die(unsigned int cpu) { int spurious = 0; - int primary_part = 0; - /* - * we're ready for shutdown now, so do it. - * Exynos4 is A9 based while Exynos5 is A15; check the CPU part - * number by reading the Main ID register and then perform the - * appropriate sequence for entering low power. - */ - asm("mrc p15, 0, %0, c0, c0, 0" : "=r"(primary_part) : : "cc"); - if ((primary_part & 0xfff0) == 0xc0f0) - cpu_enter_lowpower_a15(); - else - cpu_enter_lowpower_a9(); + v7_exit_coherency_flush(louis); platform_do_lowpower(cpu, &spurious); diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c index 9e5e230..ec02422 100644 --- a/arch/arm/mach-exynos/platsmp.c +++ b/arch/arm/mach-exynos/platsmp.c @@ -27,8 +27,6 @@ #include <asm/smp_scu.h> #include <asm/firmware.h> -#include <plat/cpu.h> - #include "common.h" #include "regs-pmu.h" @@ -72,7 +70,7 @@ static inline void __iomem *cpu_boot_reg(int cpu) return ERR_PTR(-ENODEV); if (soc_is_exynos4412()) boot_reg += 4*cpu; - else if (soc_is_exynos5420()) + else if (soc_is_exynos5420() || soc_is_exynos5800()) boot_reg += 4; return boot_reg; } diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c index 0d1a46e..87c0d34 100644 --- a/arch/arm/mach-exynos/pm.c +++ b/arch/arm/mach-exynos/pm.c @@ -27,7 +27,6 @@ #include <asm/smp_scu.h> #include <asm/suspend.h> -#include <plat/cpu.h> #include <plat/pm-common.h> #include <plat/pll.h> #include <plat/regs-srom.h> diff --git a/arch/arm/mach-exynos/pmu.c b/arch/arm/mach-exynos/pmu.c index 05c7ce1..fb0deda 100644 --- a/arch/arm/mach-exynos/pmu.c +++ b/arch/arm/mach-exynos/pmu.c @@ -13,8 +13,6 @@ #include <linux/kernel.h> #include <linux/bug.h> -#include <plat/cpu.h> - #include "common.h" #include "regs-pmu.h" |
