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| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2016-12-05 11:39:40 +0100 |
|---|---|---|
| committer | Simon Horman <horms+renesas@verge.net.au> | 2017-01-03 10:50:43 +0100 |
| commit | 367ed998fa3e04d8bde42f431e880cd3e5922095 (patch) | |
| tree | f4e5d55ecbc4433b168e1e0d58e7cbb79316ea7a /arch/arm/mach-shmobile | |
| parent | d03c8f78d03af2a46127537dd1daa67164e53c09 (diff) | |
| download | linux-367ed998fa3e04d8bde42f431e880cd3e5922095.tar.gz linux-367ed998fa3e04d8bde42f431e880cd3e5922095.tar.xz | |
ARM: shmobile: r8a7791: Allow booting secondary CPU cores in debug mode
Now debug resource reset is handled properly, allow booting secondary
CPU cores when hardware debug mode is enabled (MD21=1, SW8-4=OFF on
koelsch) on legacy r8a7791.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Diffstat (limited to 'arch/arm/mach-shmobile')
| -rw-r--r-- | arch/arm/mach-shmobile/smp-r8a7791.c | 14 |
1 files changed, 1 insertions, 13 deletions
diff --git a/arch/arm/mach-shmobile/smp-r8a7791.c b/arch/arm/mach-shmobile/smp-r8a7791.c index 2d6417af73b5..2948c22cfc53 100644 --- a/arch/arm/mach-shmobile/smp-r8a7791.c +++ b/arch/arm/mach-shmobile/smp-r8a7791.c @@ -42,21 +42,9 @@ static void __init r8a7791_smp_prepare_cpus(unsigned int max_cpus) rcar_gen2_pm_init(); } -static int r8a7791_smp_boot_secondary(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); -} - const struct smp_operations r8a7791_smp_ops __initconst = { .smp_prepare_cpus = r8a7791_smp_prepare_cpus, - .smp_boot_secondary = r8a7791_smp_boot_secondary, + .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, |