ARM: MX5: Fix broken leftover TO-2 errata workaround
This check was broken. r3 does not contain the silicon revision anymore, so
we need to reload it. Also, this errata only applies to i.MX51.
Signed-off-by: David Jander <david@protonic.nl>
Acked-by: Stefano Babic <sbabic@denx.de>
diff --git a/arch/arm/cpu/armv7/mx5/lowlevel_init.S b/arch/arm/cpu/armv7/mx5/lowlevel_init.S
index 96ebfe2..94de9f1 100644
--- a/arch/arm/cpu/armv7/mx5/lowlevel_init.S
+++ b/arch/arm/cpu/armv7/mx5/lowlevel_init.S
@@ -39,10 +39,14 @@
orr r0, r0, #(1 << 23) /* disable write allocate combine */
orr r0, r0, #(1 << 22) /* disable write allocate */
- cmp r3, #0x10 /* r3 contains the silicon rev */
+#if defined(CONFIG_MX51)
+ ldr r1, =0x0
+ ldr r3, [r1, #ROM_SI_REV]
+ cmp r3, #0x10
/* disable write combine for TO 2 and lower revs */
orrls r0, r0, #(1 << 25)
+#endif
mcr 15, 1, r0, c9, c0, 2
.endm /* init_l2cc */