arch/arm/mach-omap1/reset.c

   1 /*
   2  * OMAP1 reset support
   3  */
   4 #include <linux/kernel.h>
   5 #include <linux/io.h>
   6
   7 #include <plat/prcm.h>
   8
   9 #include <mach/hardware.h>
  10
  11 #include "common.h"
  12
  13 void omap1_restart(char mode, const char *cmd)
  14 {
  15         /*
  16          * Workaround for 5912/1611b bug mentioned in sprz209d.pdf p. 28
  17          * "Global Software Reset Affects Traffic Controller Frequency".
  18          */
  19         if (cpu_is_omap5912()) {
  20                 omap_writew(omap_readw(DPLL_CTL) & ~(1 << 4), DPLL_CTL);
  21                 omap_writew(0x8, ARM_RSTCT1);
  22         }
  23
  24         omap_writew(1, ARM_RSTCT1);
  25 }