diff options
Diffstat (limited to 'arch/arm/mach-omap2/omap-smp.c')
| -rw-r--r-- | arch/arm/mach-omap2/omap-smp.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c index 5b201653ca32..98a11463a843 100644 --- a/arch/arm/mach-omap2/omap-smp.c +++ b/arch/arm/mach-omap2/omap-smp.c @@ -66,13 +66,6 @@ static void __cpuinit omap4_secondary_init(unsigned int cpu) 4, 0, 0, 0, 0, 0); /* - * If any interrupts are already enabled for the primary - * core (e.g. timer irq), then they will not have been enabled - * for us: do so - */ - gic_secondary_init(0); - - /* * Synchronise with the boot thread. */ spin_lock(&boot_lock); @@ -83,6 +76,7 @@ static int __cpuinit omap4_boot_secondary(unsigned int cpu, struct task_struct * { static struct clockdomain *cpu1_clkdm; static bool booted; + static struct powerdomain *cpu1_pwrdm; void __iomem *base = omap_get_wakeupgen_base(); /* @@ -102,8 +96,10 @@ static int __cpuinit omap4_boot_secondary(unsigned int cpu, struct task_struct * else __raw_writel(0x20, base + OMAP_AUX_CORE_BOOT_0); - if (!cpu1_clkdm) + if (!cpu1_clkdm && !cpu1_pwrdm) { cpu1_clkdm = clkdm_lookup("mpu1_clkdm"); + cpu1_pwrdm = pwrdm_lookup("cpu1_pwrdm"); + } /* * The SGI(Software Generated Interrupts) are not wakeup capable @@ -116,7 +112,7 @@ static int __cpuinit omap4_boot_secondary(unsigned int cpu, struct task_struct * * Section : * 4.3.4.2 Power States of CPU0 and CPU1 */ - if (booted) { + if (booted && cpu1_pwrdm && cpu1_clkdm) { /* * GIC distributor control register has changed between * CortexA9 r1pX and r2pX. The Control Register secure @@ -137,7 +133,12 @@ static int __cpuinit omap4_boot_secondary(unsigned int cpu, struct task_struct * gic_dist_disable(); } + /* + * Ensure that CPU power state is set to ON to avoid CPU + * powerdomain transition on wfi + */ clkdm_wakeup(cpu1_clkdm); + omap_set_pwrdm_state(cpu1_pwrdm, PWRDM_POWER_ON); clkdm_allow_idle(cpu1_clkdm); if (IS_PM44XX_ERRATUM(PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD)) { @@ -173,7 +174,7 @@ static void __init omap4_smp_init_cpus(void) unsigned int i = 0, ncores = 1, cpu_id; /* Use ARM cpuid check here, as SoC detection will not work so early */ - cpu_id = read_cpuid(CPUID_ID) & CPU_MASK; + cpu_id = read_cpuid_id() & CPU_MASK; if (cpu_id == CPU_CORTEX_A9) { /* * Currently we can't call ioremap here because |