powerpc/85xx: add some missing sync instructions in the CCSR relocation code

Calls to tlbwe and tlbsx should be preceded with an isync/msync pair.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

arch/powerpc/cpu/mpc85xx/start.S

@@ -352,6 +352,8 @@ purge_old_ccsr_tlb:
 
 	li	r1, 0
 	mtspr	MAS6, r1	/* Search the current address space and PID */
+	isync
+	msync
 	tlbsx	0, r8
 	mfspr	r1, MAS1
 	andis.  r2, r1, MAS1_VALID@h	/* Check for the Valid bit */
@@ -359,6 +361,8 @@ purge_old_ccsr_tlb:
 
 	rlwinm	r1, r1, 0, 1, 31	/* Clear Valid bit */
 	mtspr	MAS1, r1
+	isync
+	msync
 	tlbwe
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