[U-Boot] [PATCH 0/2] mmc: Fix partition table init regression

Andre Przywara
2018-12-17T10:05:43Z

Commit d0851c893706 ("blk: Call part_init() in the post_probe() method")
in the 2019.01-rc1 merge window moved the partition init call to the
generic DM layer, leaving every non-DM driver behind. As the result all
Allwinner boards now don't read the partition table automatically
anymore:
=> fatls mmc 0
** Unrecognized filesystem type **
=> fatload mmc 0 $kernel_addr_r Image-4.20-rc3
** Unrecognized filesystem type **

A quick workaround is to explicitly read the partition table, but this is
still a regression, as it breaks existing scripts and workflows:
==========
=> mmc part

Partition Map for MMC device 0 -- Partition Type: DOS

Part Start Sector Num Sectors UUID Type
1 8192 30873600 00000000-01 0c
=> fatls mmc 0
852304 xen
23544320 Image-4.20-rc3

2 file(s), 0 dir(s)
==========

These two patches are the minimal version to fix this problem, by bringing
the implicit part_init() call back just for non-DM MMC drivers.
Patch 1 is needed to keep the H6 SPL below the size limit.

The whole SPL_LIBDISK_SUPPORT symbol is now somewhat obsolete and needs
some proper fixing, but this needs more discussion and testing and
is probably nothing for this release still.

Thanks,
Andre.

Andre Przywara (2):
sunxi: drop default SPL_LIBDISK_SUPPORT enablement
mmc: bring back partition init for non-DM MMC drivers

arch/arm/Kconfig | 1 -
drivers/mmc/mmc.c | 4 ++++
2 files changed, 4 insertions(+), 1 deletion(-)

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2.14.5