[PATCH 0/2] sunxi: Support automated booting from 128KB

[Jagan Teki]

On Fri, Jan 10, 2020 at 7:17 AM Andre Przywara <andre.przywara at arm.com> wrote:
>
> The Allwinner Boot ROM on all later SoCs can load the initial SPL code
> from offset 128KB or from offset 8KB of an SD card or eMMC.
> We support this in the SPL for a while now, but so far needed to manually
> adjust the U-Boot image MMC load sector during compile time.
>
> Since the Boot ROM writes a different boot source ID into the SRAM when
> loaded from the higher offset, we can check this value and dynamically
> adjust the raw MMC load sector for the U-Boot proper image.
>
> This allows to generate *one* image file, which can be written to either
> offset 8KB or to offset 128KB. The latter has the advantange of not
> overlapping with a standard GPT partition table.
>
> Tested on Bananapi M2 Berry (R40), Orangepi Zero (H2+), Orangepi PC 2 (H5),
> Pine64-LTS (A64), Bananapi-M64 (A64, both SD card and eMMC) and
> Pine H64 (H6), on all boards writing the same image to both 8K and 128K.
>
> Cheers,
> Andre.
>
> Andre Przywara (2):
>   sunxi: SPL: Factor out sunxi_get_boot_source()
>   sunxi: Automate loading from 128KB MMC offset

Applied to u-boot-sunxi/master