ppc4xx: Invalidate d-cache when used as init-ram
We need to invalidate the data cache after it has been used as init-ram.
This problem was detected on the lwmon5 update.
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/arch/powerpc/cpu/ppc4xx/start.S b/arch/powerpc/cpu/ppc4xx/start.S
index 5296dad..4bad32f 100644
--- a/arch/powerpc/cpu/ppc4xx/start.S
+++ b/arch/powerpc/cpu/ppc4xx/start.S
@@ -1459,6 +1459,11 @@
mtspr SPRN_DTV3,r6
msync
isync
+
+ /* Invalidate data cache, now no longer our stack */
+ dccci 0,0
+ sync
+ isync
#endif /* CONFIG_SYS_INIT_RAM_DCACHE */
/*