Hi Riley, On 16 February 2017 at 21:44, Simon Glass <s...@chromium.org> wrote: > Hi Riley, > > On 15 February 2017 at 17:31, Riley Baird <ri...@openmailbox.org> wrote: > >> 3. Do I just have to sign u-boot-dtb.img with vbutil_kernel before >> dd-ing it onto a USB, or do I have to do something else to make the >> right image? > > I normally start up U-Boot from scratch, but it sounds like you are > chain-loading it.
When chainloading, depthcharge will load and execute u-boot from a fixed address, and U-Boot needs to be told about it. I chainloaded U-Boot on a nyan chromebook like this: https://git.collabora.com/cgit/user/tomeu/u-boot.git/commit/?h=nyan-big&id=35bcb399c0d78ba6a050cc775d467ee75ed06923 The important bit is changing u-boot's CONFIG_SYS_TEXT_BASE according to depthcharge's CONFIG_KERNEL_START. https://chromium.googlesource.com/chromiumos/platform/depthcharge/+/master/board/nyan_big/defconfig#11 You may need to add some padding as shown in the .its file, but I don't remember now why CONFIG_SYS_TEXT_BASE cannot be adjusted instead (almost 2 years have passed already). I think you can ignore the EAE commit in that branch because that code has been rewritten in u-boot since. Good luck, Tomeu _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
