From mboxrd@z Thu Jan 1 00:00:00 1970 From: Johannes Stezenbach Subject: Re: ARM target not boot after remap memory Date: Mon, 13 Sep 2010 19:26:06 +0200 Message-ID: <20100913172606.GA14462@sig21.net> References: <20100913121247.GA4003@sig21.net> Mime-Version: 1.0 Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Robin Theunis Cc: linux-kernel@vger.kernel.org, linux-embedded@vger.kernel.org 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