On Tue, Sep 07, 2021 at 08:37:51AM +0200, Kristian Amlie wrote: > vexpress_ca9x4 is seemingly the only board except for qemu_arm which > is able to run U-Boot correctly, using the `-M vexpress-a9` option to > QEMU. Building for qemu_arm and running qemu-system-arm with the `-M > virt` argument has a number of downsides, most importantly that it > only supports virtio storage drivers. This significantly reduces its > usefulness in testing memory card and Flash solutions, especially when > the tested images are from a third party source. > > So therefore we reintroduce the vexpress_ca9x4 board in this commit, > with the explicit goal of using it with QEMU. > > A number of differences to note from the original: > > * Since the board was apparently unmaintained, I have now set myself > as the maintainer. > > * The board has been converted to use the driver model, which was the > reason it was removed in the first place. > > * The vexpress_ca15_tc2 and vexpress_ca5x2 boards, which were removed > in the same commit, are not necessary for the QEMU use case, and > have been omitted. > > * An `mmc0` alias was introduced in the dts file. The mmc is not > detected correctly without this, now that it's based on the device > tree instead of the board's init function. > > * A couple of other nodes were removed because they were problematic > when trying to run the UEFI bootmgr. Once again, the primary use > case here is QEMU, and these nodes are not needed for that to work. > > * Unnecessary board init code has been removed, thanks to driver model > and device tree. > > * `CONFIG_OF_EMBED` has been enabled. I know this goes against > recommended practice, but there doesn't seem to be any other way to > pass the dtb to U-Boot in the QEMU scenario. Using the -dtb argument > does not work, I suppose because U-Boot doesn't use the same > mechanics as the kernel when it's booting. > > * Load addresses have been changed to fit QEMU use case. > > People wanting to get a more detailed, yet somewhat isolated, diff > between this and the original, can run this command: > > git diff c6c26a05b89f25a06e7562f8c2071b60fd0c9eac~1 -- \ > $( git diff-tree --diff-filter=A -r --name-only HEAD~1 HEAD) > > (Make sure to either check out this commit first, or replace HEAD with > the commit ID of this commit) > > Signed-off-by: Kristian Amlie <[email protected]>
Applied to u-boot/next, thanks! -- Tom
signature.asc
Description: PGP signature
