sh: APM/PM support.

This adds some simple PM stubs and the basic APM interfaces,
primarily for use by hp6xx, where the existing userland
expects it.

Signed-off-by: Andriy Skulysh <askulysh@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 14 insertions, 0 deletions

diff --git a/arch/sh/boards/hp6xx/setup.c b/arch/sh/boards/hp6xx/setup.c
index 71f315663cc9..5fc00f0727c4 100644
--- a/arch/sh/boards/hp6xx/setup.c
+++ b/arch/sh/boards/hp6xx/setup.c
@@ -15,6 +15,9 @@
 #include <asm/hp6xx/hp6xx.h>
 #include <asm/cpu/dac.h>
 
+#define SCPCR   0xa4000116
+#define SCPDR   0xa4000136
+
 const char *get_system_type(void)
 {
         return "HP6xx";
@@ -24,6 +27,7 @@ int __init platform_setup(void)
 {
         u8 v8;
         u16 v;
+
         v = inw(HD64461_STBCR);
         v |= HD64461_STBCR_SURTST | HD64461_STBCR_SIRST |
             HD64461_STBCR_STM1ST | HD64461_STBCR_STM0ST |
@@ -50,5 +54,15 @@ int __init platform_setup(void)
         v8 &= ~DACR_DAE;
         ctrl_outb(v8,DACR);
 
+        v8 = ctrl_inb(SCPDR);
+        v8 |= SCPDR_TS_SCAN_X | SCPDR_TS_SCAN_Y;
+        v8 &= ~SCPDR_TS_SCAN_ENABLE;
+        ctrl_outb(v8, SCPDR);
+
+        v = ctrl_inw(SCPCR);
+        v &= ~SCPCR_TS_MASK;
+        v |= SCPCR_TS_ENABLE;
+        ctrl_outw(v, SCPCR);
+
         return 0;
 }