diff options
Diffstat (limited to 'arch/arm/mach-exynos4/platsmp.c')
| -rw-r--r-- | arch/arm/mach-exynos4/platsmp.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/arch/arm/mach-exynos4/platsmp.c b/arch/arm/mach-exynos4/platsmp.c index 7c2282c6ba81..05595407e9ff 100644 --- a/arch/arm/mach-exynos4/platsmp.c +++ b/arch/arm/mach-exynos4/platsmp.c @@ -30,9 +30,13 @@ #include <mach/regs-clock.h> #include <mach/regs-pmu.h> +#include <plat/cpu.h> + +extern unsigned int gic_bank_offset; extern void exynos4_secondary_startup(void); -#define CPU1_BOOT_REG S5P_VA_SYSRAM +#define CPU1_BOOT_REG (samsung_rev() == EXYNOS4210_REV_1_1 ? \ + S5P_INFORM5 : S5P_VA_SYSRAM) /* * control for which core is the next to come out of the secondary @@ -64,9 +68,9 @@ static DEFINE_SPINLOCK(boot_lock); static void __cpuinit exynos4_gic_secondary_init(void) { void __iomem *dist_base = S5P_VA_GIC_DIST + - (EXYNOS4_GIC_BANK_OFFSET * smp_processor_id()); + (gic_bank_offset * smp_processor_id()); void __iomem *cpu_base = S5P_VA_GIC_CPU + - (EXYNOS4_GIC_BANK_OFFSET * smp_processor_id()); + (gic_bank_offset * smp_processor_id()); int i; /* @@ -106,6 +110,8 @@ void __cpuinit platform_secondary_init(unsigned int cpu) */ spin_lock(&boot_lock); spin_unlock(&boot_lock); + + set_cpu_online(cpu, true); } int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) @@ -126,7 +132,7 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) * Note that "pen_release" is the hardware CPU ID, whereas * "cpu" is Linux's internal ID. */ - write_pen_release(cpu); + write_pen_release(cpu_logical_map(cpu)); if (!(__raw_readl(S5P_ARM_CORE1_STATUS) & S5P_CORE_LOCAL_PWR_EN)) { __raw_writel(S5P_CORE_LOCAL_PWR_EN, @@ -191,12 +197,10 @@ void __init smp_init_cpus(void) ncores = scu_base ? scu_get_core_count(scu_base) : 1; /* sanity check */ - if (ncores > NR_CPUS) { - printk(KERN_WARNING - "EXYNOS4: no. of cores (%d) greater than configured " - "maximum of %d - clipping\n", - ncores, NR_CPUS); - ncores = NR_CPUS; + if (ncores > nr_cpu_ids) { + pr_warn("SMP: %u cores greater than maximum (%u), clipping\n", + ncores, nr_cpu_ids); + ncores = nr_cpu_ids; } for (i = 0; i < ncores; i++) @@ -216,5 +220,6 @@ void __init platform_smp_prepare_cpus(unsigned int max_cpus) * until it receives a soft interrupt, and then the * secondary CPU branches to this address. */ - __raw_writel(BSYM(virt_to_phys(exynos4_secondary_startup)), S5P_VA_SYSRAM); + __raw_writel(BSYM(virt_to_phys(exynos4_secondary_startup)), + CPU1_BOOT_REG); } |