include/asm-arm/arch-omap/system.h

   1 /*
   2  * Copied from linux/include/asm-arm/arch-sa1100/system.h
   3  * Copyright (c) 1999 Nicolas Pitre <nico@cam.org>
   4  */
   5 #ifndef __ASM_ARCH_SYSTEM_H
   6 #define __ASM_ARCH_SYSTEM_H
   7 #include <linux/config.h>
   8 #include <asm/mach-types.h>
   9 #include <asm/hardware.h>
  10
  11 #ifndef CONFIG_MACH_VOICEBLUE
  12 #define voiceblue_reset()               do {} while (0)
  13 #endif
  14
  15 extern void omap_prcm_arch_reset(char mode);
  16
  17 static inline void arch_idle(void)
  18 {
  19         cpu_do_idle();
  20 }
  21
  22 static inline void omap1_arch_reset(char mode)
  23 {
  24         /*
  25          * Workaround for 5912/1611b bug mentioned in sprz209d.pdf p. 28
  26          * "Global Software Reset Affects Traffic Controller Frequency".
  27          */
  28         if (cpu_is_omap5912()) {
  29                 omap_writew(omap_readw(DPLL_CTL) & ~(1 << 4),
  30                                  DPLL_CTL);
  31                 omap_writew(0x8, ARM_RSTCT1);
  32         }
  33
  34         if (machine_is_voiceblue())
  35                 voiceblue_reset();
  36         else
  37                 omap_writew(1, ARM_RSTCT1);
  38 }
  39
  40 static inline void arch_reset(char mode)
  41 {
  42         if (!cpu_is_omap24xx())
  43                 omap1_arch_reset(mode);
  44         else
  45                 omap_prcm_arch_reset(mode);
  46 }
  47
  48 #endif