target/linux/coldfire/patches/087-m547x_8x_reboot_wd.patch

   1 From b3a11478f28a24b719ff6426f52216c37c3331d7 Mon Sep 17 00:00:00 2001
   2 From: Kurt Mahan <kmahan@freescale.com>
   3 Date: Thu, 17 Jul 2008 17:02:29 -0600
   4 Subject: [PATCH] Enable watchdog to reboot the processor.
   5
   6 LTIBName: m547x-8x-reboot-wd
   7 Signed-off-by: Kurt Mahan <kmahan@freescale.com>
   8 ---
   9  arch/m68k/coldfire/config.c |    9 +++++++++
  10  1 files changed, 9 insertions(+), 0 deletions(-)
  11
  12 --- a/arch/m68k/coldfire/config.c
  13 +++ b/arch/m68k/coldfire/config.c
  14 @@ -50,6 +50,10 @@
  15  #include <asm/mcf5445x_xbs.h>
  16  #endif
  17
  18 +#ifdef CONFIG_M547X_8X
  19 +#include <asm/m5485gpt.h>
  20 +#endif
  21 +
  22  extern int get_irq_list(struct seq_file *p, void *v);
  23  extern char _text, _end;
  24  extern char _etext, _edata, __init_begin, __init_end;
  25 @@ -379,6 +383,11 @@ void coldfire_reboot(void)
  26             "moveb #0x80, %%d0\n\t"
  27             "moveb %%d0, 0xfc0a0000\n\t"
  28             : : : "%d0");
  29 +#elif defined(CONFIG_M547X_8X)
  30 +       /* disable interrupts and enable the watchdog */
  31 +       printk(KERN_INFO "Rebooting\n");
  32 +       asm("movew #0x2700, %sr\n");
  33 +       MCF_GPT_GMS0 = MCF_GPT_GMS_WDEN | MCF_GPT_GMS_CE | MCF_GPT_GMS_TMS(4);
  34  #endif
  35  }
  36