Now debug resource reset is handled properly, allow booting secondary CPU cores when hardware debug mode is enabled (MD21=1) on SoCs using the "renesas,apmu" enable method.
Signed-off-by: Geert Uytterhoeven <[email protected]> Tested-by: Hiep Cao Minh <[email protected]> --- v2: - Add Tested-by. --- arch/arm/mach-shmobile/platsmp-apmu.c | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) diff --git a/arch/arm/mach-shmobile/platsmp-apmu.c b/arch/arm/mach-shmobile/platsmp-apmu.c index 7e4ca6788be521dc..e19266844e16126b 100644 --- a/arch/arm/mach-shmobile/platsmp-apmu.c +++ b/arch/arm/mach-shmobile/platsmp-apmu.c @@ -216,21 +216,9 @@ static void __init shmobile_smp_apmu_prepare_cpus_dt(unsigned int max_cpus) rcar_gen2_pm_init(); } -static int shmobile_smp_apmu_boot_secondary_md21(unsigned int cpu, - struct task_struct *idle) -{ - /* Error out when hardware debug mode is enabled */ - if (rcar_gen2_read_mode_pins() & BIT(21)) { - pr_warn("Unable to boot CPU%u when MD21 is set\n", cpu); - return -ENOTSUPP; - } - - return shmobile_smp_apmu_boot_secondary(cpu, idle); -} - static struct smp_operations apmu_smp_ops __initdata = { .smp_prepare_cpus = shmobile_smp_apmu_prepare_cpus_dt, - .smp_boot_secondary = shmobile_smp_apmu_boot_secondary_md21, + .smp_boot_secondary = shmobile_smp_apmu_boot_secondary, #ifdef CONFIG_HOTPLUG_CPU .cpu_can_disable = shmobile_smp_cpu_can_disable, .cpu_die = shmobile_smp_apmu_cpu_die, -- 1.9.1
