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 v2] ARM: zynq: Fix earlyprintk in big endian mode
Date: Fri, 12 Jun 2015 12:23:24 +0530 [thread overview]
Message-ID: <1434092004-21385-1-git-send-email-achandran@mvista.com> (raw)
In-Reply-To: <1433945584-16379-1-git-send-email-achandran@mvista.com>
earlyprintk messages are not appearing on the terminal
emulator during a big endian kernel boot. In BE mode
sending full words to UART will result in unprintable
characters as they are byte swapped versions of printable
ones. So send only bytes.
Signed-off-by: Arun Chandran <achandran@mvista.com>
---
---
Changes since v1:
removed the byte swapping logic. Just send characters instead.
---
arch/arm/include/debug/zynq.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/include/debug/zynq.S b/arch/arm/include/debug/zynq.S
index bd13ded..de86b92 100644
--- a/arch/arm/include/debug/zynq.S
+++ b/arch/arm/include/debug/zynq.S
@@ -38,7 +38,7 @@
.endm
.macro senduart,rd,rx
- str \rd, [\rx, #UART_FIFO_OFFSET] @ TXDATA
+ strb \rd, [\rx, #UART_FIFO_OFFSET] @ TXDATA
.endm
.macro waituart,rd,rx
--
1.9.1
next prev parent reply other threads:[~2015-06-12 6:53 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-10 14:13 [PATCH v1] " Arun Chandran
2015-06-11 18:13 ` Michal Simek
2015-06-12 6:58 ` Arun Chandran
2015-06-12 6:53 ` Arun Chandran [this message]
2015-06-12 9:25 ` [PATCH v2] " Michal Simek
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