[PATCH 22/23] ARM: cci: driver need big endian fixes in asm code

[Ben Dooks]

From: Victor Kamensky <victor.kamensky at linaro.org>

cci_enable_port_for_self written in asm and it works with h/w
registers that are in little endian format. When run in big
endian mode it needs byte swap before/after it writes/reads
to/from such registers

CC: Lorenzon Pieralisi <lorenzo.pieralisi at arm.com>
Signed-off-by: Victor Kamensky <victor.kamensky at linaro.org>
Signed-off-by: Ben Dooks <ben.dooks at codethink.co.uk>
---
 drivers/bus/arm-cci.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c
index 2009266..6db173e 100644
--- a/drivers/bus/arm-cci.c
+++ b/drivers/bus/arm-cci.c
@@ -281,6 +281,9 @@ asmlinkage void __naked cci_enable_port_for_self(void)
 	/* Enable the CCI port */
 "	ldr	r0, [r0, %[offsetof_port_phys]] \n"
 "	mov	r3, #"__stringify(CCI_ENABLE_REQ)" \n"
+#ifdef __ARMEB__
+"	rev	r3, r3 \n"
+#endif /* __ARMEB__ */
 "	str	r3, [r0, #"__stringify(CCI_PORT_CTRL)"] \n"
 
 	/* poll the status reg for completion */
@@ -288,6 +291,9 @@ asmlinkage void __naked cci_enable_port_for_self(void)
 "	ldr	r0, [r1] \n"
 "	ldr	r0, [r0, r1]		@ cci_ctrl_base \n"
 "4:	ldr	r1, [r0, #"__stringify(CCI_CTRL_STATUS)"] \n"
+#ifdef __ARMEB__
+"	rev	r1, r1 \n"
+#endif /* __ARMEB__ */
 "	tst	r1, #1 \n"
 "	bne	4b \n"
 
-- 
1.8.4.rc3