Distroboot support for DE0-nano-SoC board

Quoted 11 lines · Frank Kunz

This adds common distribution boot environment variables for DE0-nanos-SoC board. The current boot procedure is extended to run the distribution boot as fallback.
The SOC ROM loader scans for the SPL in the special partition 0xa2 (partition mode)
if this is not found it scans the MMC card sector 0 (raw mode), for up to four valid SPLs. When a partition table (MBR, GPT) is used with raw mode, the first SPL must not be written to the MMC and the ROM loader uses the second SPL.

Quoted 8 lines

Frank Kunz (3):
? socfpga: Enable abort for DE-nano-SoC SPL uboot load from MMC ? socfpga: Add distoboot support for DE0-nano-SoC
? socfpga: Adapt environment storage for DE0-nano-SoC

?include/configs/socfpga_de0_nano_soc.h | 32
+++++++++++++++++++++++++++++++-
?1 file changed, 31 insertions(+), 1 deletion(-)

CCing Dalon, he sent a series
[PATCH v7 0/7] arm: socfpga: update default u-boot environment

Can you two coordinate the efforts ? I think it'd make sense to wait for his series to reach v8 and then rebase on top of it. I would also like Dalon to do a v8 which just extracts the common env, so we can merge that first and then look into the more intrusive bits.