From: Arun Chandran <achandran@mvista.com>
To: Michal Simek <michal.simek@xilinx.com>
Cc: linux-kernel@vger.kernel.org, "Michal Simek" <monstr@monstr.eu>,
"Sören Brinkmann" <soren.brinkmann@xilinx.com>,
linux-arm-kernel@lists.infradead.org,
"Arun Chandran" <achandran@mvista.com>
Subject: [PATCH v1] ARM: zynq: Fix earlyprintk in big endian mode
Date: Wed, 10 Jun 2015 19:43:04 +0530 [thread overview]
Message-ID: <1433945584-16379-1-git-send-email-achandran@mvista.com> (raw)
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@mvista.com>
---
---
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
next reply other threads:[~2015-06-10 14:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-10 14:13 Arun Chandran [this message]
2015-06-11 18:13 ` Michal Simek
2015-06-12 6:58 ` Arun Chandran
2015-06-12 6:53 ` [PATCH v2] " Arun Chandran
2015-06-12 9:25 ` Michal Simek
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