From 6d8184b00c0d1d7090e4a2f514e310d98a394f8d Mon Sep 17 00:00:00 2001
From: Larry Johnson <lrj@arlinx.com>
Date: Wed, 9 Jan 2008 23:10:27 -0500
Subject: [PATCH] ppc4xx: Fix dflush() to restore DVLIM register

Signed-off-by: Larry Johnson <lrj@acm.org>
---
 cpu/ppc4xx/start.S | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S
index a730604367..77c2aa4117 100644
--- a/cpu/ppc4xx/start.S
+++ b/cpu/ppc4xx/start.S
@@ -1700,6 +1700,7 @@ trap_reloc:
 	rlwinm	r8,r9,0,15,13
 	rlwinm	r8,r8,0,17,15
 	mtmsr	r8
+	mfspr	r8,dvlim
 	addi	r3,r0,0x0000
 	mtspr	dvlim,r3
 	mfspr	r3,ivpr
@@ -1714,6 +1715,7 @@ trap_reloc:
 ..ag:	dcbf	r0,r3
 	addi	r3,r3,-32
 	bdnz	..ag
+	mtspr	dvlim,r8
 	sync
 	mtmsr	r9
 	blr
-- 
2.39.5