On Tue, Jun 29, 2021 at 12:45:55PM +0100, Andre Przywara wrote: > The v2021.07 merge window saw the removal of the Arm Ltd. Versatile > Express platform, along with their CA5, CA9 and TC2 boards. The trigger > was the missing conversion of the MMC driver. > > Some folks complained about that internally, so bring those boards back, > but better than ever: > - Use DM and OF_CONTROL for all the boards. Use the .dts files from the > latest Linux kernel (5.13) for that. > - Move the board selection choice into the platform's Kconfig. > - Clean up some shared config and common definitions. > - Drop obsolete features like ATAGs support. > - Switch to the DM_ETH version of the SMC911X Ethernet driver. > - Drop MMC support. > > The PL180 MMC driver actually supports DM_MMC, but that requires a > DM_GPIO driver for the card detect GPIO, which we don't have. This > specific GPIO is actually handled via the "sysregs" device, so we would > need a driver for that. QEMU does not emulate this part, also the DT > description is somewhat "special", so this is left for later. > > This version compiles without any warning for all three boards now. > Tested on QEMU. > > Signed-off-by: Andre Przywara <andre.przyw...@arm.com> > --- > Hi, > > this relies on the SMC911x driver DT changes, as posted here: > https://lists.denx.de/pipermail/u-boot/2021-June/452989.html > I put a version with the changes broken down here: > https://github.com/Andre-ARM/u-boot/commits/tc2-history > > This was tested on QEMU, for vexpress_ca15_tc2_defconfig with: > $ qemu-system-arm -M vexpress-a15,secure=on -cpu cortex-a15 -m 1G -smp 1 \ > -drive file=tramp-tc2.bin,if=pflash,format=raw,read-only \ > -device loader,file=u-boot.bin,addr=0x80800000 -nographic > > Where tramp-tc2.bin is a trampoline replacing the board's firmware: > 00000000 00 00 a0 e3 80 00 48 e3 10 ff 2f e1 > (mov r0, #0; movt r0, #0x8080; bx r0) > > The vexpress_ca9x4_defconfig uses a different memory map, so the runes are: > $ qemu-system-arm -M vexpress-a9 -cpu cortex-a9 -m 1G -smp 1 \ > -drive file=tramp-ca9.bin,if=pflash,format=raw,read-only \ > -device loader,file=u-boot.bin,addr=0x60800000 -nographic > > tramp-ca9.bin: > 00000000 00 00 a0 e3 80 00 46 e3 10 ff 2f e1 > (mov r0, #0; movt r0, #0x6080; bx r0)
My big question is how do we run this in CI? Or does it not _need_ that firmware file to really exist? Or is there a pending change to https://gitlab.denx.de/u-boot/u-boot-test-hooks.git to generate / just have exist those magic empty bins? Thanks! -- Tom
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