diff options
Diffstat (limited to 'arch/arm/mach-exynos/platsmp.c')
| -rw-r--r-- | arch/arm/mach-exynos/platsmp.c | 59 |
1 files changed, 32 insertions, 27 deletions
diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c index 29500da24dd5..2207598ce049 100644 --- a/arch/arm/mach-exynos/platsmp.c +++ b/arch/arm/mach-exynos/platsmp.c @@ -1,5 +1,4 @@ -/* linux/arch/arm/mach-exynos4/platsmp.c - * + /* * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. * http://www.samsung.com * @@ -27,6 +26,8 @@ #include <asm/smp_scu.h> #include <asm/firmware.h> +#include <mach/map.h> + #include "common.h" #include "regs-pmu.h" @@ -42,7 +43,7 @@ extern void exynos4_secondary_startup(void); */ void exynos_cpu_power_down(int cpu) { - __raw_writel(0, EXYNOS_ARM_CORE_CONFIGURATION(cpu)); + pmu_raw_writel(0, EXYNOS_ARM_CORE_CONFIGURATION(cpu)); } /** @@ -53,8 +54,8 @@ void exynos_cpu_power_down(int cpu) */ void exynos_cpu_power_up(int cpu) { - __raw_writel(S5P_CORE_LOCAL_PWR_EN, - EXYNOS_ARM_CORE_CONFIGURATION(cpu)); + pmu_raw_writel(S5P_CORE_LOCAL_PWR_EN, + EXYNOS_ARM_CORE_CONFIGURATION(cpu)); } /** @@ -64,7 +65,7 @@ void exynos_cpu_power_up(int cpu) */ int exynos_cpu_power_state(int cpu) { - return (__raw_readl(EXYNOS_ARM_CORE_STATUS(cpu)) & + return (pmu_raw_readl(EXYNOS_ARM_CORE_STATUS(cpu)) & S5P_CORE_LOCAL_PWR_EN); } @@ -74,7 +75,7 @@ int exynos_cpu_power_state(int cpu) */ void exynos_cluster_power_down(int cluster) { - __raw_writel(0, EXYNOS_COMMON_CONFIGURATION(cluster)); + pmu_raw_writel(0, EXYNOS_COMMON_CONFIGURATION(cluster)); } /** @@ -83,8 +84,8 @@ void exynos_cluster_power_down(int cluster) */ void exynos_cluster_power_up(int cluster) { - __raw_writel(S5P_CORE_LOCAL_PWR_EN, - EXYNOS_COMMON_CONFIGURATION(cluster)); + pmu_raw_writel(S5P_CORE_LOCAL_PWR_EN, + EXYNOS_COMMON_CONFIGURATION(cluster)); } /** @@ -94,14 +95,14 @@ void exynos_cluster_power_up(int cluster) */ int exynos_cluster_power_state(int cluster) { - return (__raw_readl(EXYNOS_COMMON_STATUS(cluster)) & - S5P_CORE_LOCAL_PWR_EN); + return (pmu_raw_readl(EXYNOS_COMMON_STATUS(cluster)) & + S5P_CORE_LOCAL_PWR_EN); } static inline void __iomem *cpu_boot_reg_base(void) { if (soc_is_exynos4210() && samsung_rev() == EXYNOS4210_REV_1_1) - return S5P_INFORM5; + return pmu_base_addr + S5P_INFORM5; return sysram_base_addr; } @@ -156,7 +157,8 @@ static void exynos_secondary_init(unsigned int cpu) static int exynos_boot_secondary(unsigned int cpu, struct task_struct *idle) { unsigned long timeout; - unsigned long phys_cpu = cpu_logical_map(cpu); + u32 mpidr = cpu_logical_map(cpu); + u32 core_id = MPIDR_AFFINITY_LEVEL(mpidr, 0); int ret = -ENOSYS; /* @@ -170,17 +172,18 @@ static int exynos_boot_secondary(unsigned int cpu, struct task_struct *idle) * the holding pen - release it, then wait for it to flag * that it has been released by resetting pen_release. * - * Note that "pen_release" is the hardware CPU ID, whereas + * Note that "pen_release" is the hardware CPU core ID, whereas * "cpu" is Linux's internal ID. */ - write_pen_release(phys_cpu); + write_pen_release(core_id); - if (!exynos_cpu_power_state(cpu)) { - exynos_cpu_power_up(cpu); + if (!exynos_cpu_power_state(core_id)) { + exynos_cpu_power_up(core_id); timeout = 10; /* wait max 10 ms until cpu1 is on */ - while (exynos_cpu_power_state(cpu) != S5P_CORE_LOCAL_PWR_EN) { + while (exynos_cpu_power_state(core_id) + != S5P_CORE_LOCAL_PWR_EN) { if (timeout-- == 0) break; @@ -211,20 +214,20 @@ static int exynos_boot_secondary(unsigned int cpu, struct task_struct *idle) * Try to set boot address using firmware first * and fall back to boot register if it fails. */ - ret = call_firmware_op(set_cpu_boot_addr, phys_cpu, boot_addr); + ret = call_firmware_op(set_cpu_boot_addr, core_id, boot_addr); if (ret && ret != -ENOSYS) goto fail; if (ret == -ENOSYS) { - void __iomem *boot_reg = cpu_boot_reg(phys_cpu); + void __iomem *boot_reg = cpu_boot_reg(core_id); if (IS_ERR(boot_reg)) { ret = PTR_ERR(boot_reg); goto fail; } - __raw_writel(boot_addr, cpu_boot_reg(phys_cpu)); + __raw_writel(boot_addr, cpu_boot_reg(core_id)); } - call_firmware_op(cpu_boot, phys_cpu); + call_firmware_op(cpu_boot, core_id); arch_send_wakeup_ipi_mask(cpumask_of(cpu)); @@ -293,22 +296,24 @@ static void __init exynos_smp_prepare_cpus(unsigned int max_cpus) * boot register if it fails. */ for (i = 1; i < max_cpus; ++i) { - unsigned long phys_cpu; unsigned long boot_addr; + u32 mpidr; + u32 core_id; int ret; - phys_cpu = cpu_logical_map(i); + mpidr = cpu_logical_map(i); + core_id = MPIDR_AFFINITY_LEVEL(mpidr, 0); boot_addr = virt_to_phys(exynos4_secondary_startup); - ret = call_firmware_op(set_cpu_boot_addr, phys_cpu, boot_addr); + ret = call_firmware_op(set_cpu_boot_addr, core_id, boot_addr); if (ret && ret != -ENOSYS) break; if (ret == -ENOSYS) { - void __iomem *boot_reg = cpu_boot_reg(phys_cpu); + void __iomem *boot_reg = cpu_boot_reg(core_id); if (IS_ERR(boot_reg)) break; - __raw_writel(boot_addr, cpu_boot_reg(phys_cpu)); + __raw_writel(boot_addr, cpu_boot_reg(core_id)); } } } |