This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / arch / sh / boards / hp6xx / pm_wakeup.S

diff --git a/arch/sh/boards/hp6xx/pm_wakeup.S b/arch/sh/boards/hp6xx/pm_wakeup.S
new file mode 100644 (file)
index 0000000..45e9bf0
--- /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