Hi Simon,
On Sun, Apr 26, 2020 at 11:13 PM Simon Glass sjg@chromium.org wrote:
This little series adds a few checks into the code to allow better operation when booting a build from a previous-state loader such as coreboot.
At present we have a 'coreboot' target but this runs very different code from the bare-metal targets, such as coral. There is very little in common between them.
It is useful to be able to boot the same U-Boot on a device, with or without a first-stage bootloader. For example, with chromebook_coral, it is helpful for testing to be able to boot the same U-Boot (complete with FSP) on bare metal and from coreboot. It allows checking of things like CPU speed, comparing registers, ACPI tables and the like.
This series allows U-Boot to detect that it ran from coreboot and automatically do the right thing.
This series makes the most important changes to allow the same u-boot.bin for coral to boot after coreboot (by itself) or bare metal (via TPL->SPL).
Changes in v4:
- Rename flag to GD_FLG_SKIP_LL_INIT
- Add new patch to move coreboot-table detection into common code
- Rename flag to GD_FLG_SKIP_LL_INIT
- Split this patch into two
- Update to use locate_coreboot_table()
v4 series applied to u-boot-x86/master, thanks!
Regards, Bin