[PATCH v9 03/12] ARM: EXYNOS: remove secondary startup initialization from smp_prepare_cpus
Pankaj Dubey
pankaj.dubey at samsung.com
Thu Mar 30 06:16:57 PDT 2017
We are taking care of setting secondary cpu boot address in
exynos_boot_secondary just before sending ipi to secondary CPUs,
so we can safely remove this setting from smp_prepare_cpus.
Signed-off-by: Pankaj Dubey <pankaj.dubey at samsung.com>
---
arch/arm/mach-exynos/platsmp.c | 26 --------------------------
1 file changed, 26 deletions(-)
diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c
index 5a03bff..cb6d199 100644
--- a/arch/arm/mach-exynos/platsmp.c
+++ b/arch/arm/mach-exynos/platsmp.c
@@ -387,38 +387,12 @@ static int exynos_boot_secondary(unsigned int cpu, struct task_struct *idle)
static void __init exynos_smp_prepare_cpus(unsigned int max_cpus)
{
- int i;
-
exynos_sysram_init();
exynos_set_delayed_reset_assertion(true);
if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9)
scu_enable(scu_base_addr());
-
- /*
- * Write the address of secondary startup into the
- * system-wide flags register. The boot monitor waits
- * until it receives a soft interrupt, and then the
- * secondary CPU branches to this address.
- *
- * Try using firmware operation first and fall back to
- * boot register if it fails.
- */
- for (i = 1; i < max_cpus; ++i) {
- unsigned long boot_addr;
- u32 mpidr;
- u32 core_id;
- int ret;
-
- mpidr = cpu_logical_map(i);
- core_id = MPIDR_AFFINITY_LEVEL(mpidr, 0);
- boot_addr = __pa_symbol(exynos4_secondary_startup);
-
- ret = exynos_set_boot_addr(core_id, boot_addr);
- if (ret)
- break;
- }
}
#ifdef CONFIG_HOTPLUG_CPU
--
2.7.4
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