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 5296dad569caf9d80353c3d0c488aae311643cb3..4bad32f9f57689056f2fb06b39d8c04df53c0c7d 100644 (file)
--- a/arch/powerpc/cpu/ppc4xx/start.S
+++ b/arch/powerpc/cpu/ppc4xx/start.S
@@ -1459,6 +1459,11 @@ relocate_code:
        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 */
 
        /*