ppc4xx: Invalidate d-cache when used as init-ram

We need to invalidate the data cache after it has been used as init-ram. This problem was detected on the lwmon5 update. Signed-off-by: Stefan Roese <sr@denx.de>

ppc4xx: Invalidate d-cache when used as init-ram
We need to invalidate the data cache after it has been used as init-ram. This problem was detected on the lwmon5 update. Signed-off-by: Stefan Roese <sr@denx.de>
Stefan Roese
1 parent c1ab75c7d4
Showing 1 changed file with 5 additions and 0 deletions Side-by-side Diff
arch/powerpc/cpu/ppc4xx/start.S
@@ -1459,6 +1459,11 @@
 	mtspr	SPRN_DTV3,r6
 	msync
 	isync
+
+	/* Invalidate data cache, now no longer our stack */
+	dccci	0,0
+	sync
+	isync
 #endif /* CONFIG_SYS_INIT_RAM_DCACHE */
  
 	/*
...	...	@@ -1459,6 +1459,11 @@
1459	1459	mtspr SPRN_DTV3,r6
1460	1460	msync
1461	1461	isync
	1462	+
	1463	+ /* Invalidate data cache, now no longer our stack */
	1464	+ dccci 0,0
	1465	+ sync
	1466	+ isync
1462	1467	#endif /* CONFIG_SYS_INIT_RAM_DCACHE */
1463	1468
1464	1469	/*