From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steve Poulsen Subject: Re: undefined instruction Date: Thu, 26 Jun 2008 11:11:55 -0500 Message-ID: <4863BFCB.9040105@css-design.us> References: <7B4574D56E4ADF438756313E9A172A8708CFE66C@dlee01.ent.ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from elasmtp-spurfowl.atl.sa.earthlink.net ([209.86.89.66]:54006 "EHLO elasmtp-spurfowl.atl.sa.earthlink.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751127AbYFZQMD (ORCPT ); Thu, 26 Jun 2008 12:12:03 -0400 In-Reply-To: Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: mohammed shareef Cc: omap Mohammed, When you tftp the file to memory, you need to make sure the filesize fits in the memory available. Since you have experimentally done that and now want to flash the pieces, I suggest you look at the "split" command under Linux. You will need to split the file into pieces that fit into RAM and flash at the proper address. If you split the file into two pieces, then you will need to flash the first piece at address X and the second piece at address X + 16meg. You should make sure you split the file on a sector boundary. If you don't want to think about this, then you should erase/unprotect the whole area you will need first, then transfer and flash the pieces. You may want to look at the omapfl utility. With some modification, you could flash your image more easily via USB. Steve mohammed shareef wrote: > Hi, > > I tried to do the same procedure with a small filesystem image < > 16Mb... it worked. i didnt have such problems. so could someone please > tell me how to divide the filesystem image in to two and flash it? > thank you, > regards, > shareef > > On Thu, Jun 26, 2008 at 4:36 PM, mohammed shareef wrote: > >> Hi, >> >> i did the below. i got an image. but i am still having the same problem >> >> my file size is 23Mb >> >> [root@localhost tftpboot]# mkfs.jffs2 --squash -r /data/rootfs2.6 >> -e131072 > /data/rootfs-jffs2.img >> [root@localhost tftpboot]# cp /data/rootfs-jffs2.img /tftpboot/rootfs-jffs2.img >> >> \0x09 ################################################################# >> \0x09 #############undefined instruction >> pc : [] lr : [<00000002>] >> sp : 1103fca4 ip : 11095dd8 fp : 00000001 >> r10: 10963410 r9 : 1103fd24 r8 : 1103ffdc >> r7 : 270a30a1 r6 : 8695632d r5 : 08016ffa r4 : 5aebcc39 >> r3 : 00000032 r2 : 11095dd4 r1 : 000000a0 r0 : 00000000 >> Flags: nZCv IRQs off FIQs off Mode SVC_32 >> Resetting CPU ... >> >> could you please tell me what i should do. thank you. >> regards, >> Shareef >> >> >> >> On Wed, Jun 25, 2008 at 9:52 PM, Hunter, Jon wrote: >> >>>> then i changed the filename and the >>>> tftpboot transfer started. But on the mid-way it complains "undefined >>>> instruction". >>>> >>>> could some one please tell me where the problem is? thank you. >>>> >>> How big is the file that you are attempting to download over tftp? >>> >>> U-boot executes in the upper part of the RAM and so if your file is too big, then there is a good chance you are overwriting u-boot which would cause u-boot to crash eventually. U-boot does not protect against this. This would be a potential cause of an undefined instruction exception. >>> >>> Jon >>> >>> > -- > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > >