[PATCH v1] ARM: zynq: Fix earlyprintk in big endian mode

From: Arun Chandran
Date: Wed Jun 10 2015 - 10:13:51 EST


earlyprintk messages are not appearing on the terminal
emulator during a big endian kernel boot. If we
byte swap the sending data it comes properly.

Signed-off-by: Arun Chandran <achandran@xxxxxxxxxx>
---
---
This can be tested by adding 'early_print("early print test\n");'
to setup_arch() in arch/arm/kernel/setup.c
---
arch/arm/include/debug/zynq.S | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/arm/include/debug/zynq.S b/arch/arm/include/debug/zynq.S
index bd13ded..0d274fe 100644
--- a/arch/arm/include/debug/zynq.S
+++ b/arch/arm/include/debug/zynq.S
@@ -38,6 +38,7 @@
.endm

.macro senduart,rd,rx
+ARM_BE8( rev \rd, \rd )
str \rd, [\rx, #UART_FIFO_OFFSET] @ TXDATA
.endm

--
1.9.1

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