Hi Matt, I made a new attempt bringing up my imx today, this time I reconnected the keyboard and then I could recover u-boot without any trouble. I disconnected the keyboard when changing the DIP switches.
BR Per On 23 January 2011 03:05, Per Forlin <per.for...@linaro.org> wrote: > On 18 January 2011 15:03, Matt Sealey <m...@genesi-usa.com> wrote: >> Per, >> >> The file you need is in the first partition of the SD card you >> downloaded - I believe I made an 8MB space at the front of the updater >> card to put U-Boot there for these kinds of rescues. You just need to >> >> dd if=u-boot-2009.01-2.0.6-efikasb of=/dev/mmcblk0 skip=1 seek=1 bs=1024 > I took the same ubootsb.bin in efikamx-updater.img.xz instead of > u-boot-2009.01-2.0.6-efikasb. I figure that would be the same or similar. > >> >> The DIP switches depend on which SD card slot you use, for the side >> slot it should be all the switches set to "off" (they default to "on >> on on off" for NOR, "off off off on" should use the microsd slot). I >> may have that reversed but you'll notice when it doesn't do anything >> and realize you need to swap the last bit over. To get to the switches >> pop the keyboard - it should latch away if you use a small screwdriver >> or awl to push the latches at the top of the keyboard, there are 4, >> start from the right. There are small catches 3/4 of the way down the >> length, so when you try and lift it forward, be careful as too much >> pressure or tugging on the keyboard will bend it. A little jiggle will >> make this easier. >> >> Once you've gotten to that point, without a serial board it gets a bit >> tricky: it won't run the autoupdate utility from the SD card because >> it will detect the running SD U-Boot as a current version. You will >> need to edit the boot.scr script provided (just edit it in a text >> editor, remove the garbage header, save it, mkimage it again) to set >> the u-boot date code to something around today's date to make sure >> it's going to flash. >> >> IN THEORY, the system should flash it and then power off. You'll see >> the caps lock led blink 3 times then it'll shut down. At this point >> take the SD out... flip the DIPs back, et voila. However if the system >> is constantly rebooting and flashing, you have those 3 blinks to >> basically kill the system (yank AC with no battery) or it will be >> halfway through a flash update and NOR will be invalid again. >> > I switched all 4 switches off. Updated the u-boot version to the date of > today. > I insert the sd-card and press the power button, it starts blinking. > What does this indicate? The caps lock led is not active at all. > > I seems like the u-boot on my sd-card is never executed or invalid. > The caps lock > led would indicate if u-boot is running, right? > I used your line to copy u-boot onto the sd-card. > dd if=ubootsb.bin of=/dev/mmcblk0 skip=1 seek=1 bs=1024 > >> If we're at the point we're having more trouble at this point please >> give me a nudge and I'll create a solution for rescues that will suit >> your exact situation. > I think I have reached this point :) > >> Okay we can make an SD card that will force a U-Boot update and power >> down easily.. > I would like to test with this pre-made image, if it exist. > > Many thanks, > Per > _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
