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2023-12-06sunxi: correct documentation for SPI flashingStephen Graf1-2/+1
The mtd_debug write does not work in this context. The flashcp command does work, provides both the erase and write functions and with the verbose option gives good feedback. Signed-off-by: Stephen Graf <stephen.graf@gmail.com> Reviewed-by: Andre Przywara <andre.przywara@arm.com>
2021-12-31sunxi: add board documentationAndre Przywara2-0/+328
Add some long overdue instructions for building and installing U-Boot on Allwinner SoC based boards. This describes the building process, including TF-A and crust, plus installation to SD card, eMMC and SPI flash, both from Linux and U-Boot itself. Also describe FEL booting. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>