MIPS: Loongson: pm: clean up the reboot support

Several magic numbers have been replaced by relative macros, which will be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

Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 10 insertions, 8 deletions

diff --git a/arch/mips/lemote/lm2e/reset.c b/arch/mips/lemote/lm2e/reset.c
index a6499a200788..0faa140f4036 100644
--- a/arch/mips/lemote/lm2e/reset.c
+++ b/arch/mips/lemote/lm2e/reset.c
@@ -6,22 +6,24 @@
  *
  * 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/init.h>
 #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)