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authorStefan Roese <sr@denx.de>2006-11-22 13:20:50 +0100
committerStefan Roese <sr@denx.de>2006-11-22 13:20:50 +0100
commit2053283304eeddf250d109e6791eb6fa4cad14f7 (patch)
tree2a9152c1e640f91b4e2a3ee06ef42572c28aaa42
parent4ef6251403f637841000e0fef9e832aa01339822 (diff)
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[PATCH] PPC4xx start.S: Fix for processor errata
Fixed cpu/ppc4xx/start.S for 440EPx Errata: further corrects PPC440EPx errata 1.12: 440_33 by moving patch up in code. Signed-off-by: Jeff Mann <mannj@embeddedplanet.com> Signed-off-by: Stefan Roese <sr@denx.de>
-rw-r--r--cpu/ppc4xx/start.S23
1 files changed, 12 insertions, 11 deletions
diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S
index 3fe13da..8e000d3 100644
--- a/cpu/ppc4xx/start.S
+++ b/cpu/ppc4xx/start.S
@@ -204,6 +204,18 @@ _start_440:
mfspr r1,mcsr
mtspr mcsr,r1
#endif
+
+ /*----------------------------------------------------------------*/
+ /* CCR0 init */
+ /*----------------------------------------------------------------*/
+ /* Disable store gathering & broadcast, guarantee inst/data
+ * cache block touch, force load/store alignment
+ * (see errata 1.12: 440_33)
+ */
+ lis r1,0x0030 /* store gathering & broadcast disable */
+ ori r1,r1,0x6000 /* cache touch */
+ mtspr ccr0,r1
+
/*----------------------------------------------------------------*/
/* Initialize debug */
/*----------------------------------------------------------------*/
@@ -225,17 +237,6 @@ _start_440:
mtspr dbsr,r1 /* Clear all valid bits */
skip_debug_init:
- /*----------------------------------------------------------------*/
- /* CCR0 init */
- /*----------------------------------------------------------------*/
- /* Disable store gathering & broadcast, guarantee inst/data
- * cache block touch, force load/store alignment
- * (see errata 1.12: 440_33)
- */
- lis r1,0x0030 /* store gathering & broadcast disable */
- ori r1,r1,0x6000 /* cache touch */
- mtspr ccr0,r1
-
#if defined (CONFIG_440SPE)
/*----------------------------------------------------------------+
| Initialize Core Configuration Reg1.