> -----Original Message----- > From: u-boot-boun...@lists.denx.de [mailto:u-boot- > boun...@lists.denx.de] On Behalf Of Andreas Bießmann > Sent: 29 October 2012 14:41 > To: Dimax > Cc: Marek Vasut; u-boot@lists.denx.de > Subject: Re: [U-Boot] UBIFS fails on SheevaPlug > > Dear Dimax, > > please do not TOFU. > > On 29.10.2012 09:50, Dimax wrote: > > Hi, > > What if I compile a new u-boot but to try it I will load and flash > new > > created image after original u-boot and will run it from withing > > original reboot manually just pointing a new image address? Can it > work? > > well, you mean to run a u-boot out of a running u-boot? > U-Boot is not designed to do so. But some devices may allow you to
It will not work. > just > run a newer u-boot from a running one (at91;). You need to know that > u-boot set up your SDRAM timings which destroys the content of the > DRAM. > So if your new u-boot is located there it can not be executed. > I dunno if the kirkwood can do so, but I think they can not. You will > need > a) a JTAG > b) another boot device, for example USB, MMC, whichever device the > kirwood SoC can read from its ROM code (I do not know) > to de-brick it. > > Please ask some kirkwood specialist or google, there are a lot of > sheevaplug hackers out there, one of them may be able to help you > here. You will need a JTAG key (amontec on any other) and OpenOCD s/w tool. Then you can build and test your code on Kirkwood w/o flashing on the device (i.e. running from RAM) You may look for developer guidelines on the google or plugcomputer forum. Regards... Prafulla . . . _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
