From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jerry Van Baren Date: Tue, 23 Jan 2007 11:40:03 -0500 Subject: [U-Boot-Users] Does ft_dump_blob() work for anyone? In-Reply-To: <45B6335B.9040201@freescale.com> References: <45B6335B.9040201@freescale.com> Message-ID: <45B63A63.6030108@smiths-aerospace.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Timur Tabi wrote: > I'm trying to debug some problems with ft_setup(), and when I call > ft_dump_blob(), I get output like this: > > recieved oftree > / { > model = [00 00 00 00 4d 50 43 38 33 34 39 45 4d]; > ** Unknown tag 0x00000000 at 0xfd9d05c > final OF-tree > /memreserve/ 1 0; > / { > model = [00 00 00 00 4d 50 43 38 33 34 39 45 4d]; > ** Unknown tag 0x00000000 at 0xfd9d06c > /memreserve/ 1 0; > / { > model = [00 00 00 00 4d 50 43 38 33 34 39 45 4d]; > ** Unknown tag 0x00000000 at 0xfd9d06c > > Obviously, it's hard to debug OF code without this function working. I believe > the bug is somewhere in this code: > > sz = be32_to_cpu(*p++); > s = (const char *)p_strings + be32_to_cpu(*p++); > t = (const char *)p; > p = (const u32 *)_ALIGN((unsigned long)p + sz, 4); > > > Notice, for instance, the 'model' node, how it displays 4 zeros first. > Obviously, the value of 't' above is incorrect. > > Unfortunately, I don't know the binary layout of the DTB, so this will take me a > while to debug. I was just wondering if anyone else is seeing these problems. It worked for me 2006-10-31 I have not been using it lately, so I cannot vouch for it still working. You may also want to double-check your dtb version, I was using version 16 when it worked. gvb