[POWERPC] 40x decrementer fixes
Allow generic_calibrate_decr to work for 40x platforms. Given that the hardware
behavior is identical, this also changes the set_dec function to reload the PIT
on 40x to match the behavior 44x currently has.
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index c85d9b0..b5944d8 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -866,7 +866,7 @@
"(not found)\n");
}
-#ifdef CONFIG_BOOKE
+#if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
/* Set the time base to zero */
mtspr(SPRN_TBWL, 0);
mtspr(SPRN_TBWU, 0);
diff --git a/include/asm-powerpc/time.h b/include/asm-powerpc/time.h
index d7f5ddf..fdc271e 100644
--- a/include/asm-powerpc/time.h
+++ b/include/asm-powerpc/time.h
@@ -174,7 +174,7 @@
static inline void set_dec(int val)
{
#if defined(CONFIG_40x)
- return; /* Have to let it auto-reload */
+ mtspr(SPRN_PIT, val);
#elif defined(CONFIG_8xx_CPU6)
set_dec_cpu6(val);
#else