arch/arm/mach-shmobile/include/mach/sdhi-sh7372.h

   1 #ifndef SDHI_SH7372_H
   2 #define SDHI_SH7372_H
   3
   4 #define SDGENCNTA       0xfe40009c
   5
   6 /* The countdown of SDGENCNTA is controlled by
   7  * ZB3D2CLK which runs at 149.5MHz.
   8  * That is 149.5ticks/us. Approximate this as 150ticks/us.
   9  */
  10 static void udelay(int us)
  11 {
  12         __raw_writel(us * 150, SDGENCNTA);
  13         while(__raw_readl(SDGENCNTA)) ;
  14 }
  15
  16 static void msleep(int ms)
  17 {
  18         udelay(ms * 1000);
  19 }
  20
  21 #endif