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ARM: exynos: Remove secondary startup initialization from smp_prepare_cpus 

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@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
This commit is contained in:
Pankaj Dubey 2018-11-15 16:11:30 +01:00 committed by Krzysztof Kozlowski
parent b1658855f0
commit cafbc79e32
1 changed files with 0 additions and 26 deletions
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26
arch/arm/mach-exynos/platsmp.c
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@ -397,38 +397,12 @@ fail:
static void __init exynos_smp_prepare_cpus(unsigned int max_cpus) static void __init exynos_smp_prepare_cpus(unsigned int max_cpus)
{ {
int i;
exynos_sysram_init(); exynos_sysram_init();
exynos_set_delayed_reset_assertion(true); exynos_set_delayed_reset_assertion(true);
if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9) if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9)
exynos_scu_enable(); exynos_scu_enable();
/*
* 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 #ifdef CONFIG_HOTPLUG_CPU