From mboxrd@z Thu Jan 1 00:00:00 1970 From: Albert ARIBAUD Date: Wed, 07 Jul 2010 16:05:31 +0200 Subject: [U-Boot] Need Help in bulding U-boot-2010-06 for OpenRD client In-Reply-To: References: <4C335AA1.2090803@free.fr> <4C34602C.8030601@free.fr> Message-ID: <4C3489AB.1060308@free.fr> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Le 07/07/2010 13:44, Prafulla Wadaskar a ?crit : > you should use u-boot.bin to load in RAM @ 0x600000 (TEXT_BASE) That's what I do, either through JTAG or by tftp/go in resident u-boot. > for boot from RAM, you must need at least SDRAM configured, so JTAG is the way JTAG does work indeed. Howvever, when: - I power up the board; - ROM boot loads u-boot from NAND and starts it; - I stop u-boot and get to the prompt; - I 'tftp' an u-boot.bin image into RAM at 1000000; - I 'go' to 1000000 ... the tftp'ed image fails to boot although SDRAM is obviously already configured. OTOH, openOCD boots the RAM image fine, so I guess OpenOCD does some inits that the boot rom plus resident u-boot don't. Amicalement, -- Albert.