diff options
| author | Changhwan Youn <chaos.youn@samsung.com> | 2010-07-26 21:08:52 +0900 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2010-08-05 18:32:41 +0900 |
| commit | 2b12b5c4ff9e0f1c5f4e5d5bde57b919fe522df2 (patch) | |
| tree | 4e55113c74f9946b6f267449977a0bddb816c323 /arch/arm/mach-s5pv310/include/mach/smp.h | |
| parent | 88baf2096c1c625c14831bc3438fd1e69bf1cef5 (diff) | |
ARM: S5PV310: Add new CPU initialization support
This patch adds Samsung S5PV310/S5PC210 CPU support.
The S5PV310/S5PC210 integrates a ARM Cortex A9 multi-core.
Signed-off-by: Changhwan Youn <chaos.youn@samsung.com>
Signed-off-by: Jongpill Lee <boyko.lee@samsung.com>
Signed-off-by: Jiseong Oh <jiseong.oh@samsung.com>
[kgene.kim@samsung.com: fix build errors]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-s5pv310/include/mach/smp.h')
| -rw-r--r-- | arch/arm/mach-s5pv310/include/mach/smp.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm/mach-s5pv310/include/mach/smp.h b/arch/arm/mach-s5pv310/include/mach/smp.h new file mode 100644 index 00000000000..990f3ba88a1 --- /dev/null +++ b/arch/arm/mach-s5pv310/include/mach/smp.h @@ -0,0 +1,29 @@ +/* linux/arch/arm/mach-s5pv310/include/mach/smp.h + * + * Cloned from arch/arm/mach-realview/include/mach/smp.h +*/ + +#ifndef ASM_ARCH_SMP_H +#define ASM_ARCH_SMP_H __FILE__ + +#include <asm/hardware/gic.h> + +extern void __iomem *gic_cpu_base_addr; + +#define hard_smp_processor_id() \ + ({ \ + unsigned int cpunum; \ + __asm__("mrc p15, 0, %0, c0, c0, 5" \ + : "=r" (cpunum)); \ + cpunum &= 0x03; \ + }) + +/* + * We use IRQ1 as the IPI + */ +static inline void smp_cross_call(const struct cpumask *mask) +{ + gic_raise_softirq(mask, 1); +} + +#endif |