[U-Boot] [PATCH 1/5] 86xx: Move the clear_tlbs before MMU turn on

[Dave Liu]

We must invalidate TLBs before MMU turn on, but
currently the code is not, if there are some stale
TLB entry valid in the TLBs, it will cause strange
issue.

Signed-off-by: Dave Liu <daveliu at freescale.com>
---
 cpu/mpc86xx/start.S |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/cpu/mpc86xx/start.S b/cpu/mpc86xx/start.S
index 159f3e1..30e6047 100644
--- a/cpu/mpc86xx/start.S
+++ b/cpu/mpc86xx/start.S
@@ -202,8 +202,12 @@ boot_warm:
 	mtmsr	0
 #endif
 
+	/* Invalidate BATs */
 	bl	invalidate_bats
 	sync
+	/* Invalidate all of TLB before MMU turn on */
+	bl      clear_tlbs
+	sync
 
 #ifdef CONFIG_SYS_L2
 	/* init the L2 cache */
@@ -275,7 +279,6 @@ in_flash:
 
 	/* setup the rest of the bats */
 	bl      setup_bats
-	bl      clear_tlbs
 	sync
 
 #if (CONFIG_SYS_CCSRBAR_DEFAULT != CONFIG_SYS_CCSRBAR)
-- 
1.5.4