linux-kernel - Re: ARM target not boot after remap memory

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Message-ID: <20100913172606.GA14462@sig21.net>
Date:	Mon, 13 Sep 2010 19:26:06 +0200
From:	Johannes Stezenbach <js@...21.net>
To:	Robin Theunis <robint91@...il.com>
Cc:	linux-kernel@...r.kernel.org, linux-embedded@...r.kernel.org
Subject: Re: ARM target not boot after remap memory

On Mon, Sep 13, 2010 at 04:30:17PM +0200, Robin Theunis wrote:
> 
> I have compiled  the kernel with early printk on and debug_LL, It still
> doesn't nothing after that line.

Please don't top-post.

Did you add "earlyprintk" to your kernel command line
like the EARLY_PRINTK menuconfig help text suggests?

arch/arm/mach-at91/include/mach/debug-macro.S also suggests
the LL debug output goes to AT91 debug unit not to normal UART
(not sure about this, I don't know much about AT91).
Did you try to dump __log_buf using JTAG?

HTH
Johannes
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