MIPS: Lemote 2F: Add reset support

Fuloong 2F, Yeeloong 2F and Menglong 2F have different reset / shutdown
logic.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: zhangfx@lemote.com
Cc: yanh@lemote.com 
Cc: huhb@lemote.com
Cc: Nicholas Mc Guire <hofrat@hofr.at>
Cc: Arnaud Patard <apatard@mandriva.com>
Cc: loongson-dev@googlegroups.com
Cc: linux-mips@linux-mips.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/arch/mips/include/asm/mach-loongson/loongson.h b/arch/mips/include/asm/mach-loongson/loongson.h
index 62171f240c7..99113902719 100644
--- a/arch/mips/include/asm/mach-loongson/loongson.h
+++ b/arch/mips/include/asm/mach-loongson/loongson.h
@@ -42,6 +42,13 @@ extern void __init set_irq_trigger_mode(void);
 extern void __init mach_init_irq(void);
 extern void mach_irq_dispatch(unsigned int pending);
 
+/* We need this in some places... */
+#define delay() ({              \
+        int x;                          \
+        for (x = 0; x < 100000; x++)    \
+                __asm__ __volatile__(""); \
+})
+
 #define LOONGSON_REG(x) \
         (*(volatile u32 *)((char *)CKSEG1ADDR(LOONGSON_REG_BASE) + (x)))