On 12/09/2013 02:39 PM, Alexey Smishlayev wrote: > Dear Wolfgang Denk, > > On 2013.12.09. 22:12, Wolfgang Denk wrote: >> Dear Alexey Smishlayev, >> >> In message <52a5d4f1.7020...@xtech2.lv> you wrote: >>> What should I do to flash environment values directly to the board's >>> NAND? >> Why don't you just use "env import"? >> > > I didn't have any information about that. Also, I would like to get done > without entering the U-Boot prompt. I am flashing my board using the > J-TAG - USB cable, and it will be much more simple and convenient if I'd > be able to just write the binary images on the NAND flash. > > So, there is no way to do something like that straight away?
I have no idea if something similar would work on your SoC, but I flash my Tegra devices as follows: * Download a copy of U-Boot into RAM and execute it. I use "tegrarcm" to download it (a method of talking to Tegra's boot ROM), but I imagine you could download using JTAG too. * This U-Boot's bootcmd (specified in the attached device tree in my case) writes the desired binary to boot flash; I flash from the device itself rather than using JTAG/... for the actual flash writes. * After flashing the U-Boot binary, the same U-Boot does "env default -f -a; saveenv" and hence re-initializes the environment in flash. You can easily "setenv foo bar" between those two commands for any custom overrides. You could even push a file into some known RAM location and run "env import" on it too... * Reboot into the newly-flashed U-Boot. The code is at: https://github.com/NVIDIA/tegra-uboot-flasher-scripts _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
