From mboxrd@z Thu Jan 1 00:00:00 1970 From: Detlev Zundel Date: Thu, 25 Feb 2010 11:27:46 +0100 Subject: [U-Boot] memory display question In-Reply-To: <4B8586D3.8010809@grid-net.com> (Steve Iribarne's message of "Wed, 24 Feb 2010 12:06:43 -0800") References: <4B8586D3.8010809@grid-net.com> Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Steve, > > I'm currently getting an error when I try to do a secure boot (internal > to the processor). So the next step is to verify that my u-boot image is > loaded where I think it should be loaded (at TEXT_BASE (0x83F0_0000)). > > When I do a md.w 0x83F00000 0x20 it display's all zero's which is wrong. > It should have my reset vector and some other things there. The image > header is really at offset 0x400. > > So I tried md.w 0x83F00400 0x20 and still all 0's. Why do you do a "md.w" to explicitely select 16-bit entities? Did you try without (i.e. correpsonding to .l) and .b? Maybe your system has problems with different access widths. > This makes no sense because the darn thing boots! > > When I hook my Lauterbach to it and do a view memory through the JTAG > the memory looks as I expect. This makes complete sense because if this > wasn't the case I wasn't sure how my system was going to boot. What accesses do you perform in this setup to read the memory? Cheers Detlev -- You get 3 opportunities to advertise your Rock band, no more. -- Proposed Symbolics guidelines for mail messages (1984) -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-40 Fax: (+49)-8142-66989-80 Email: dzu at denx.de