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 <linux/clk.h>
   9
  10 #include <asm/mach-types.h>
  11 #include <asm/hardware.h>
  12
  13 #ifndef CONFIG_MACH_VOICEBLUE
  14 #define voiceblue_reset()               do {} while (0)
  15 #endif
  16
  17 extern void omap_prcm_arch_reset(char mode);
  18
  19 static inline void arch_idle(void)
  20 {
  21         cpu_do_idle();
  22 }
  23
  24 static inline void omap1_arch_reset(char mode)
  25 {
  26         /*
  27          * Workaround for 5912/1611b bug mentioned in sprz209d.pdf p. 28
  28          * "Global Software Reset Affects Traffic Controller Frequency".
  29          */
  30         if (cpu_is_omap5912()) {
  31                 omap_writew(omap_readw(DPLL_CTL) & ~(1 << 4),
  32                                  DPLL_CTL);
  33                 omap_writew(0x8, ARM_RSTCT1);
  34         }
  35
  36         if (machine_is_voiceblue())
  37                 voiceblue_reset();
  38         else
  39                 omap_writew(1, ARM_RSTCT1);
  40 }
  41
  42 static inline void arch_reset(char mode)
  43 {
  44         if (!cpu_is_omap24xx())
  45                 omap1_arch_reset(mode);
  46         else
  47                 omap_prcm_arch_reset(mode);
  48 }
  49
  50 #endif