From f3cac5384074f3c20b5bcbbdbccbe1e2e25ffc76 Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Tue, 31 Aug 2010 11:27:14 +0200 Subject: [PATCH] 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 --- arch/powerpc/cpu/ppc4xx/start.S | 5 +++++ 1 file changed, 5 insertions(+) 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 */ /* -- 2.30.2