[U-Boot] [PATCH] ppc4xx: Invalidate d-cache when used as init-ram

[U-Boot] [PATCH] ppc4xx: Invalidate d-cache when used as init-ram

[Stefan Roese]

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>
---
 arch/powerpc/cpu/ppc4xx/start.S |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

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 @@ 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 */
 
 	/*
-- 
1.7.2.2

[U-Boot] [PATCH] ppc4xx: Invalidate d-cache when used as init-ram

[Stefan Roese]

On Tuesday 31 August 2010 11:27:14 Stefan Roese wrote:
> We need to invalidate the data cache after it has been used as init-ram.
> 
> This problem was detected on the lwmon5 update.

Applied to u-boot-ppc4xx/master. Thanks.
 
Cheers,
Stefan

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