From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VOvBk-0004lS-0B for barebox@lists.infradead.org; Wed, 25 Sep 2013 19:55:58 +0000 Date: Wed, 25 Sep 2013 21:55:31 +0200 From: Sascha Hauer Message-ID: <20130925195531.GI30088@pengutronix.de> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: Re: how to copy barebox to flash? To: "Allen Kennedy Jr." Cc: barebox@lists.infradead.org Hi Allen, On Wed, Sep 25, 2013 at 11:13:47AM -0500, Allen Kennedy Jr. wrote: > All, > How do I copy barebox to flash? > I have a flash device setup: > `---- imx_nand > `---- nand0 > `---- 0x00000000-0x0fffffff: /dev/nand0 > `---- 0x00000000-0x0001ffff: /dev/bootstrapper > `---- 0x00020000-0x0005ffff: /dev/barebox > `---- 0x00060000-0x0009ffff: /dev/env_raw > `---- 0x00100000-0x005fffff: /dev/kernel > > I used JTAG to load barebox into memory at 0xa0000000 > > I just can't figure out how to copy it to flash... There is no DD command... > I tried this: > cp 0xa0000000 /dev/barebox 0x4000 > got : > cp: target `0x4000' is not a directory What you're looking for is the memcpy command. It has options to copy memory to/from files. You need something like: memcpy -d /dev/barebox 0xa0000000 0 512k replace 512k with whatever filesize is appropriate. See 'help memcpy' or http://wiki.barebox.org/doku.php?id=commands:memcpy for more information. > > Seems barebox changed what 'cp' is from the old u-boot way. > and the nand command only does bad block handling... > > barebox-update seems to be a candidate, but the docs don't make sense > on how to use. Yes, that's the correct command, but it needs board support to be implemented. With the correct board support the update would go down to: barebox_update /mnt/tftp/barebox.bin (It needs a file though, you would have to generate this with memcpy if you want to use it together with a raw memory image.) > Also I was thinking something like md > /dev/nand, but the output of > MD is user readable. Unfortunately the barebox shell is not capable of doing output redirection. Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox