From: Stefan Roese <sr@denx.de>
Date: Tue, 31 Aug 2010 09:27:14 +0000 (+0200)
Subject: ppc4xx: Invalidate d-cache when used as init-ram
X-Git-Tag: v2010.09-rc1~4^2
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=f3cac5384074f3c20b5bcbbdbccbe1e2e25ffc76;p=oweals%2Fu-boot.git

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 5296dad569..4bad32f9f5 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 */
 
 	/*