[PATCH 2/6] ARM: shmobile: r8a7779: Stop powering down secondary CPUs during early boot
From: geert+renesas@glider.be (Geert Uytterhoeven)
Date: 2018-05-30 15:25:12
Also in:
linux-renesas-soc
Subsystem:
arm port, arm/risc-v/renesas architecture, the rest · Maintainers:
Russell King, Geert Uytterhoeven, Magnus Damm, Linus Torvalds
At .smp_prepare_cpus() time, CPUs 1-3 are still powered down: - The bootloader doesn't enable CPUs 1-3, - Non-boot CPUs are disabled by kexec before starting the new kernel. Hence there is no need to try to power them down again, as it will fail silently with -EIO anyway. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> --- arch/arm/mach-shmobile/smp-r8a7779.c | 5 ----- 1 file changed, 5 deletions(-)
diff --git a/arch/arm/mach-shmobile/smp-r8a7779.c b/arch/arm/mach-shmobile/smp-r8a7779.c
index c6951ee245889b8f..ff1e6fc0b861c4fc 100644
--- a/arch/arm/mach-shmobile/smp-r8a7779.c
+++ b/arch/arm/mach-shmobile/smp-r8a7779.c@@ -97,11 +97,6 @@ static void __init r8a7779_smp_prepare_cpus(unsigned int max_cpus) shmobile_smp_scu_prepare_cpus(R8A7779_SCU_BASE, max_cpus); r8a7779_pm_init(); - - /* power off secondary CPUs */ - r8a7779_platform_cpu_kill(1); - r8a7779_platform_cpu_kill(2); - r8a7779_platform_cpu_kill(3); } #ifdef CONFIG_HOTPLUG_CPU
--
2.7.4