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From: michal.simek@xilinx.com (Michal Simek)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v1] ARM: zynq: Fix earlyprintk in big endian mode
Date: Thu, 11 Jun 2015 20:13:32 +0200	[thread overview]
Message-ID: <5579CFCC.60905@xilinx.com> (raw)
In-Reply-To: <1433945584-16379-1-git-send-email-achandran@mvista.com>

On 06/10/2015 04:13 PM, Arun Chandran wrote:
> 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
>  
> 

Tested-by: Michal Simek <michal.simek@xilinx.com>

Thanks,
Michal

WARNING: multiple messages have this Message-ID (diff)
From: Michal Simek <michal.simek@xilinx.com>
To: Arun Chandran <achandran@mvista.com>,
	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
Subject: Re: [PATCH v1] ARM: zynq: Fix earlyprintk in big endian mode
Date: Thu, 11 Jun 2015 20:13:32 +0200	[thread overview]
Message-ID: <5579CFCC.60905@xilinx.com> (raw)
In-Reply-To: <1433945584-16379-1-git-send-email-achandran@mvista.com>

On 06/10/2015 04:13 PM, Arun Chandran wrote:
> 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
>  
> 

Tested-by: Michal Simek <michal.simek@xilinx.com>

Thanks,
Michal

  reply	other threads:[~2015-06-11 18:13 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-10 14:13 [PATCH v1] ARM: zynq: Fix earlyprintk in big endian mode Arun Chandran
2015-06-10 14:13 ` Arun Chandran
2015-06-11 18:13 ` Michal Simek [this message]
2015-06-11 18:13   ` Michal Simek
2015-06-12  6:58   ` Arun Chandran
2015-06-12  6:58     ` Arun Chandran
2015-06-12  6:53 ` [PATCH v2] " Arun Chandran
2015-06-12  6:53   ` Arun Chandran
2015-06-12  9:25   ` Michal Simek
2015-06-12  9:25     ` Michal Simek

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