Le 07/11/2012 10:30, Dimax a écrit : > Thanks. > >> You can load it from uboot and test it before flashing it. >> Just add an offset of 0x200 (the header) to you loaded uboot address. >> then jump to this address with the uboot command "go 0x....." > > Can you please explain it. > The make generated following for the image I have: # Notice that we load the image at 0x800000 but start running it from 0x800200. This is because the first 0x200 bytes of are the kirkwood image header, and the real executable starts after the header. >> ext2load usb 0 0x800000 u-boot.kwb >> go 0x800200 You can also, as said on the wiki page given, load the uboot.elf file directly with the JTAH using OpenOCD. The SheevaPlug in mainly unbrickable. You may only take care to not corrupt your ubifs filesystem by overlapping with flashing ! > Image Type: Kirkwood Boot from NAND Flash Image > Load Address: 00600000 > Entry Point: 00600000 > > So I'm not sure where to add the 0x200 ? > Should I load a new image into RAM or Flash? > > > On Wed, Nov 7, 2012 at 11:19 AM, DrEagle <dreagle@doukki.net> wrote: >> Hi, >> >> Le 07/11/2012 07:25, Dimax a écrit : >>> HI, >>> >>> I'm trying to build the very latest u-boot version for SheevaPlug. >>> The reason is the below thread: >>> http://lists.denx.de/pipermail/u-boot/2012-October/138533.html >>> >>> In short u-boot fails to mount ubifs partition after power short. If I >>> boot from USB stick debian kernel manage to recover the partition. >>> People from u-boot stuff suggested me to apply a number of patches to >>> u-boot. They sad that it should let u-boot to be able to mount broken >>> ubifs partition after that. >>> >>> I have build latest u-boot main line using native GCC on one of my >>> running SheevaPlug boards. >> >> You can cross build your uboot also from a linux box. >> >>> Before I tun it and potentially brick my board I'd like to ask if >>> someone did it. >> >> You can load it from uboot and test it before flashing it. >> Just add an offset of 0x200 (the header) to you loaded uboot address. >> then jump to this address with the uboot command "go 0x....." >> >>> I was in contact with Martin Michlmayr and Clint who maintain Debian >>> port of the u-boot for Marvell boards. Martin told me: >>> >>>> There are some but not many; e.g. there are some patches to add SD >>>> support on the SheevaPlug. >>>> You can download the source code from the Debian repo and check it out; >>>> the Debian patches are split out. >>> >>> Actually I do not care about SD support and want to try main line >>> u-boot. Should it work? >> >> Yes, it might work. >> Save your env settings because mainline will be different. >> Take care also of the size of uboot binary when loading, mainline may be bigger. >> >>> If not what is the procedure to build Debian one? >> >> $ apt-get source ... >> $ cd uboot >> $ dpkg-buildpackage -rfakeroot -aarmel >> >>> Thanks. >> >> Some more advice at https://doukki.net/doku.php?id=wiki:tutoriels:uboot.howto >> >> >
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