[ARM] Feroceon: don't disable BPU on boot

On Feroceon platforms that have a branch prediction unit, bit 11 of the
cp15 control register controls the BPU.  This patch keeps the old value
of this bit instead of always clearing it.

Signed-off-by: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>

diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S
index 63ca1ea..f2e5884 100644 (file)
--- a/arch/arm/mm/proc-feroceon.S
+++ b/arch/arm/mm/proc-feroceon.S
@@ -493,14 +493,15 @@ __feroceon_setup:
        .size   __feroceon_setup, . - __feroceon_setup
 
        /*
-        *  R
-        * .RVI ZFRS BLDP WCAM
-        * .011 0001 ..11 0101
+        *      B
+        *  R   P
+        * .RVI UFRS BLDP WCAM
+        * .011 .001 ..11 0101
         *
         */
        .type   feroceon_crval, #object
 feroceon_crval:
-       crval   clear=0x00007f3f, mmuset=0x00003135, ucset=0x00001134
+       crval   clear=0x0000773f, mmuset=0x00003135, ucset=0x00001134
 
        __INITDATA