[PATCH v8 6/8] ARM: EXYNOS: remove secondary startup initialization from smp_prepare_cpus
From: Pankaj Dubey <hidden>
Date: 2016-12-10 13:08:41
Also in:
linux-samsung-soc
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
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 <redacted> --- arch/arm/mach-exynos/platsmp.c | 25 ------------------------- 1 file changed, 25 deletions(-)
diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c
index 43eec10..4de254e 100644
--- a/arch/arm/mach-exynos/platsmp.c
+++ b/arch/arm/mach-exynos/platsmp.c@@ -403,8 +403,6 @@ 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);
@@ -414,29 +412,6 @@ static void __init exynos_smp_prepare_cpus(unsigned int max_cpus) if (exynos_scu_enable()) return; } - /* - * 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 = virt_to_phys(exynos4_secondary_startup); - - ret = exynos_set_boot_addr(core_id, boot_addr); - if (ret) - break; - } } #ifdef CONFIG_HOTPLUG_CPU
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2.7.4