[PATCH v4 05/16] [loongson] pm: clean up the reboot support

[Wu Zhangjin <wuzhangjin@gmail.com>]

From: Wu Zhangjin <wuzj@lemote.com>

several magic numbers have been replaced by relative macros, which will
be more readable and understandable.

Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
---
 arch/mips/lemote/lm2e/reset.c |   18 ++++++++++--------
 1 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/arch/mips/lemote/lm2e/reset.c b/arch/mips/lemote/lm2e/reset.c
index 47ff506..7758093 100644
--- a/arch/mips/lemote/lm2e/reset.c
+++ b/arch/mips/lemote/lm2e/reset.c
@@ -6,21 +6,23 @@
  *
  * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
  * Author: Fuxin Zhang, zhangfx@lemote.com
+ * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology
+ * Author: Zhangjin Wu, wuzj@lemote.com
  */
 #include <linux/pm.h>
+#include <linux/io.h>
 
 #include <asm/reboot.h>
+#include <asm/mips-boards/bonito64.h>
 
 static void loongson2e_restart(char *command)
 {
-#ifdef CONFIG_32BIT
-       *(unsigned long *)0xbfe00104 &= ~(1 << 2);
-       *(unsigned long *)0xbfe00104 |= (1 << 2);
-#else
-       *(unsigned long *)0xffffffffbfe00104 &= ~(1 << 2);
-       *(unsigned long *)0xffffffffbfe00104 |= (1 << 2);
-#endif
-       __asm__ __volatile__("jr\t%0"::"r"(0xbfc00000));
+       /* do preparation for reboot */
+       BONITO_BONGENCFG &= ~(1 << 2);
+       BONITO_BONGENCFG |= (1 << 2);
+
+       /* reboot via jumping to boot base address */
+       ((void (*)(void))ioremap_nocache(BONITO_BOOT_BASE, 4)) ();
 }
 
 static void loongson2e_halt(void)
-- 
1.6.2.1