arch/arm-native/soc/broadcom/283x/sdcard/sdcard_bcm2835time.c

   1 /*
   2     Copyright © 2013, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include "sdcard_intern.h"
   7
   8 ULONG sdcard_CurrentTime()
   9 {
  10     return *((volatile ULONG *)(SYSTIMER_CLO));
  11 }
  12
  13 void sdcard_Udelay(ULONG usec)
  14 {
  15     ULONG now = sdcard_CurrentTime();
  16     do
  17     {
  18         asm volatile("mov r0, r0\n");
  19     } while (sdcard_CurrentTime() < (now + usec));
  20 }
  21
  22 void sdcard_WaitNano(register ULONG ns, struct SDCardBase *SDCardBase)
  23 {
  24     while (ns > 0)
  25     {
  26         asm volatile("mov r0, r0\n");
  27         --ns;
  28     }
  29 }