summaryrefslogtreecommitdiff
path: root/resources/u-boot/qemu_arm64_12mb/config/default
AgeCommit message (Collapse)Author
2023-06-22u-boot: Increase EFI variable buffer sizeAlper Nebi Yasak
Debian's signed shim allocates too many EFI variables to fit in the EFI variable memory buffer. Normally it would then try to continue booting in non-secure-boot mode, but its error handling throws a synchronous abort that reboots the board, making it impossible to boot into Debian unless one manually loads GRUB instead of shim. Increase EFI variable buffer size to avoid triggering the bug. Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
2023-02-14u-boot: Disable environment storageAlper Nebi Yasak
U-Boot can be configured via environment variables which can be saved to various storage devices. This usually defaults to MMC or SPI depending on where it boots from, but assumes the device's layout is controlled by U-Boot. We should store the environment in SPI flash, but we also need to configure coreboot FMAPs to reserve the area U-Boot would use as its environment storage. For now, disable environment storage by setting ENV_IS_NOWHERE=y to avoid overwriting random regions of SPI or MMC if someone tries to save the variables. Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
2023-02-14u-boot: Update to v2023.01Alper Nebi Yasak
Set default U-Boot revision to v2023.01 and rebase patches on top of that. Upstream kconfig status is a bit unstable, so updating configs with `make oldconfig` would miss important upstream changes. For each board, run `make savedefconfig` and `diffconfig -m` at the old version to get a diff from upstream defconfigs. Fix those affected by upstream changes, like SYS_TEXT_BASE being renamed to TEXT_BASE. Then append those to the new version's defconfigs and run `make olddefconfig` to get updated configs. Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
2022-12-10u-boot: Add qemu_arm64_12mb boardAlper Nebi Yasak
Add a U-Boot payload build for the QEMU AArch64 virtual machine. The config is same as upstream "qemu-arm64" defconfig, but SYS_TEXT_BASE is set to 0x50000000 so that it doesn't conflict with coreboot. QEMU auto-generates and passes a device-tree file to U-Boot at runtime, there's no compile-time canonical version, so there's no need to set REMAKE_ELF or OF_EMBED. It's not immediately obvious if QEMU-specific drivers are available to support display output, but most coreboot integration is unavailable (depends on x86) and entire video subsystem is disabled in the U-Boot upstream defconfig. Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>