diff options
Diffstat (limited to 'arch/arm/mach-shmobile/include/mach/sdhi-sh7372.h')
-rw-r--r-- | arch/arm/mach-shmobile/include/mach/sdhi-sh7372.h | 21 |
1 files changed, 21 insertions, 0 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 |