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rk30: smp: boot_secondary power off cpu1 first

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黄涛
2012-03-25 11:39:31 +08:00
parent 2f547971d3
commit c3ae7c8de8
1 changed files with 6 additions and 3 deletions
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9
arch/arm/mach-rk30/platsmp.c
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@@ -68,16 +68,19 @@ extern void rk30_sram_secondary_startup(void);
int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
{
static bool copied;
static bool first = true;
if (!copied) {
if (first) {
unsigned long sz = 0x100;
pmu_set_power_domain(PD_A9_1, false);
memcpy(RK30_IMEM_BASE + sz - 4, (void *)rk30_sram_secondary_startup + sz - 4, 4);
memcpy(RK30_IMEM_BASE, rk30_sram_secondary_startup, sz);
flush_icache_range((unsigned long)RK30_IMEM_BASE, (unsigned long)RK30_IMEM_BASE + sz);
outer_clean_range(0, sz);
copied = true;
first = false;
}
dsb_sev();