diff options
Diffstat (limited to 'arch/arm/mach-shmobile')
-rw-r--r-- | arch/arm/mach-shmobile/include/mach/sdhi-sh7372.h | 21 | ||||
-rw-r--r-- | arch/arm/mach-shmobile/include/mach/sdhi.h | 16 | ||||
-rw-r--r-- | arch/arm/mach-shmobile/platsmp.c | 5 |
3 files changed, 37 insertions, 5 deletions
diff --git a/arch/arm/mach-shmobile/include/mach/sdhi-sh7372.h b/arch/arm/mach-shmobile/include/mach/sdhi-sh7372.h new file mode 100644 index 00000000000..4a81b01f1e8 --- /dev/null +++ b/arch/arm/mach-shmobile/include/mach/sdhi-sh7372.h @@ -0,0 +1,21 @@ +#ifndef SDHI_SH7372_H +#define SDHI_SH7372_H + +#define SDGENCNTA 0xfe40009c + +/* The countdown of SDGENCNTA is controlled by + * ZB3D2CLK which runs at 149.5MHz. + * That is 149.5ticks/us. Approximate this as 150ticks/us. + */ +static void udelay(int us) +{ + __raw_writel(us * 150, SDGENCNTA); + while(__raw_readl(SDGENCNTA)) ; +} + +static void msleep(int ms) +{ + udelay(ms * 1000); +} + +#endif diff --git a/arch/arm/mach-shmobile/include/mach/sdhi.h b/arch/arm/mach-shmobile/include/mach/sdhi.h new file mode 100644 index 00000000000..0ec9e69f2c3 --- /dev/null +++ b/arch/arm/mach-shmobile/include/mach/sdhi.h @@ -0,0 +1,16 @@ +#ifndef SDHI_H +#define SDHI_H + +/************************************************** + * + * CPU specific settings + * + **************************************************/ + +#ifdef CONFIG_ARCH_SH7372 +#include "mach/sdhi-sh7372.h" +#else +#error "unsupported CPU." +#endif + +#endif /* SDHI_H */ diff --git a/arch/arm/mach-shmobile/platsmp.c b/arch/arm/mach-shmobile/platsmp.c index f3888feb1c6..66f980625a3 100644 --- a/arch/arm/mach-shmobile/platsmp.c +++ b/arch/arm/mach-shmobile/platsmp.c @@ -64,10 +64,5 @@ void __init smp_init_cpus(void) void __init platform_smp_prepare_cpus(unsigned int max_cpus) { - int i; - - for (i = 0; i < max_cpus; i++) - set_cpu_present(i, true); - shmobile_smp_prepare_cpus(); } |