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| author | Magnus Damm <damm@opensource.se> | 2012-05-16 15:45:25 +0900 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2012-05-18 00:14:02 +0200 |
| commit | bd5a875d90c878be4d23f54ea565253734ae2377 (patch) | |
| tree | 98cc3435486ab8b55374d24051b262c21600b95b /arch/arm/mach-shmobile/platsmp.c | |
| parent | c050fb10c425cf189da5ca9b84e948ec2fc99049 (diff) | |
| download | linux-bd5a875d90c878be4d23f54ea565253734ae2377.tar.gz linux-bd5a875d90c878be4d23f54ea565253734ae2377.tar.bz2 linux-bd5a875d90c878be4d23f54ea565253734ae2377.zip | |
mach-shmobile: Emma Mobile EV2 SMP support V3
This is V3 of Emma Mobile EV2 SMP support.
At this point only the most basic form of SMP operation
is supported. TWD and CPU Hotplug support is excluded.
Tied to both the Emma Mobile EV2 and the KZM9D board
due to the need to switch on board in platsmp.c and
the newly introduced need for static mappings.
The static mappings are needed to allow hardware
acces early during boot when SMP is initialized.
This early requirement forces us to also map in
the SMU registers.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'arch/arm/mach-shmobile/platsmp.c')
| -rw-r--r-- | arch/arm/mach-shmobile/platsmp.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/platsmp.c b/arch/arm/mach-shmobile/platsmp.c index 45fa3924c6a1..959b021e52be 100644 --- a/arch/arm/mach-shmobile/platsmp.c +++ b/arch/arm/mach-shmobile/platsmp.c @@ -19,9 +19,11 @@ #include <asm/hardware/gic.h> #include <asm/mach-types.h> #include <mach/common.h> +#include <mach/emev2.h> #define is_sh73a0() (machine_is_ag5evm() || machine_is_kota2()) #define is_r8a7779() machine_is_marzen() +#define is_emev2() machine_is_kzm9d() static unsigned int __init shmobile_smp_get_core_count(void) { @@ -31,6 +33,9 @@ static unsigned int __init shmobile_smp_get_core_count(void) if (is_r8a7779()) return r8a7779_get_core_count(); + if (is_emev2()) + return emev2_get_core_count(); + return 1; } @@ -41,6 +46,9 @@ static void __init shmobile_smp_prepare_cpus(void) if (is_r8a7779()) r8a7779_smp_prepare_cpus(); + + if (is_emev2()) + emev2_smp_prepare_cpus(); } int shmobile_platform_cpu_kill(unsigned int cpu) @@ -48,6 +56,9 @@ int shmobile_platform_cpu_kill(unsigned int cpu) if (is_r8a7779()) return r8a7779_platform_cpu_kill(cpu); + if (is_emev2()) + return emev2_platform_cpu_kill(cpu); + return 1; } @@ -60,6 +71,9 @@ void __cpuinit platform_secondary_init(unsigned int cpu) if (is_r8a7779()) r8a7779_secondary_init(cpu); + + if (is_emev2()) + emev2_secondary_init(cpu); } int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) @@ -70,6 +84,9 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) if (is_r8a7779()) return r8a7779_boot_secondary(cpu); + if (is_emev2()) + return emev2_boot_secondary(cpu); + return -ENOSYS; } |