sh: Rework SuperH Mobile sleep mode code

Rework the SuperH Mobile sleep code from including
board specific code to allowing each board to provide
pre/post code snippets. These snippets should contain
sdram management code to enter and leave self-refresh.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 27 insertions, 0 deletions

diff --git a/arch/sh/include/asm/suspend.h b/arch/sh/include/asm/suspend.h
index fab58cc2ecd9..8e2c55dc5fe6 100644
--- a/arch/sh/include/asm/suspend.h
+++ b/arch/sh/include/asm/suspend.h
@@ -34,6 +34,33 @@ extern struct atomic_notifier_head sh_mobile_post_sleep_notifier_list;
 void sh_mobile_register_self_refresh(unsigned long flags,
                                      void *pre_start, void *pre_end,
                                      void *post_start, void *post_end);
+
+/* register structure for address/data information */
+struct sh_sleep_regs {
+        unsigned long stbcr;
+};
+
+/* data area for low-level sleep code */
+struct sh_sleep_data {
+        /* current sleep mode (SUSP_SH_...) */
+        unsigned long mode;
+
+        /* addresses of board specific self-refresh snippets */
+        unsigned long sf_pre;
+        unsigned long sf_post;
+
+        /* register state saved and restored by the assembly code */
+        unsigned long vbr;
+        unsigned long spc;
+        unsigned long sr;
+
+        /* structure for keeping register addresses */
+        struct sh_sleep_regs addr;
+
+        /* structure for saving/restoring register state */
+        struct sh_sleep_regs data;
+};
+
 #endif
 
 /* flags passed to assembly suspend code */