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-rw-r--r--cpu/ppc4xx/start.S9
1 files changed, 7 insertions, 2 deletions
diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S
index 582c781..2f06914 100644
--- a/cpu/ppc4xx/start.S
+++ b/cpu/ppc4xx/start.S
@@ -450,9 +450,14 @@ skip_debug_init:
/* Clear all TLB entries -- TID = 0, TS = 0 */
/*----------------------------------------------------------------*/
addis r0,0,0x0000
- li r1,0x003f /* 64 TLB entries */
- mtctr r1
+#ifdef CONFIG_SYS_RAMBOOT
li r4,0 /* Start with TLB #0 */
+#else
+ li r4,1 /* Start with TLB #1 */
+#endif
+ li r1,64 /* 64 TLB entries */
+ sub r1,r1,r4 /* calculate last TLB # */
+ mtctr r1
rsttlb:
#ifdef CONFIG_SYS_RAMBOOT
tlbre r3,r4,0 /* Read contents from TLB word #0 to get EPN */