1 files changed, 58 insertions, 0 deletions

diff --git a/arch/sh/boards/hp6xx/pm_wakeup.S b/arch/sh/boards/hp6xx/pm_wakeup.S
new file mode 100644
index 000000000000..45e9bf0b9115
--- /dev/null
+++ b/arch/sh/boards/hp6xx/pm_wakeup.S
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2006 Andriy Skulysh <askulsyh@gmail.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ */
+
+#include <linux/linkage.h>
+#include <asm/cpu/mmu_context.h>
+
+#define k0      r0
+#define k1      r1
+#define k2      r2
+#define k3      r3
+#define k4      r4
+
+/*
+ * Kernel mode register usage:
+ *      k0      scratch
+ *      k1      scratch
+ *      k2      scratch (Exception code)
+ *      k3      scratch (Return address)
+ *      k4      scratch
+ *      k5      reserved
+ *      k6      Global Interrupt Mask (0--15 << 4)
+ *      k7      CURRENT_THREAD_INFO (pointer to current thread info)
+ */
+
+ENTRY(wakeup_start)
+! clear STBY bit
+        mov     #-126, k2
+        and     #127, k0
+        mov.b   k0, @k2
+! enable refresh
+        mov.l   5f, k1
+        mov.w   6f, k0
+        mov.w   k0, @k1
+! jump to handler
+        mov.l   2f, k2
+        mov.l   3f, k3
+        mov.l   @k2, k2
+
+        mov.l   4f, k1
+        jmp     @k1
+        nop
+
+        .align  2
+1:      .long   EXPEVT
+2:      .long   INTEVT
+3:      .long   ret_from_irq
+4:      .long   handle_exception
+5:      .long   0xffffff68
+6:      .word   0x0524
+
+ENTRY(wakeup_end)
+        nop