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Diffstat (limited to 'arch/mips/loongson/common/reset.c')
-rw-r--r--arch/mips/loongson/common/reset.c20
1 files changed, 19 insertions, 1 deletions
diff --git a/arch/mips/loongson/common/reset.c b/arch/mips/loongson/common/reset.c
index 4bd9c18b07a5..9e10d6225d9b 100644
--- a/arch/mips/loongson/common/reset.c
+++ b/arch/mips/loongson/common/reset.c
@@ -16,13 +16,31 @@
#include <loongson.h>
+static inline void loongson_reboot(void)
+{
+#ifndef CONFIG_CPU_JUMP_WORKAROUNDS
+ ((void (*)(void))ioremap_nocache(LOONGSON_BOOT_BASE, 4)) ();
+#else
+ void (*func)(void);
+
+ func = (void *)ioremap_nocache(LOONGSON_BOOT_BASE, 4);
+
+ __asm__ __volatile__(
+ " .set noat \n"
+ " jr %[func] \n"
+ " .set at \n"
+ : /* No outputs */
+ : [func] "r" (func));
+#endif
+}
+
static void loongson_restart(char *command)
{
/* do preparation for reboot */
mach_prepare_reboot();
/* reboot via jumping to boot base address */
- ((void (*)(void))ioremap_nocache(LOONGSON_BOOT_BASE, 4)) ();
+ loongson_reboot();
}
static void loongson_poweroff(void)
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