Hello,
Some MMC controller instances integrated on older OMAP34xx/35xx chips
don't work correctly with multiple-block reads, due to a hardware bug.
This series fixes the problem by adding an MMC capability flag for this
case and making the appropriate changes to the MMC core code and OMAP HSMMC
driver to support this.
Once this series is merged, a subsequent patch will be needed by us OMAP
folks to pass the appropriate device data via hwmod - this will be posted
separately.
- Paul
---
mmc_errata_2.1.1.128_fix_3.2
text data bss dec hex filename
6325283 655708 5591124 12572115 bfd5d3 vmlinux.omap2plus_defconfig.orig
6329423 655700 5591124 12576247 bfe5f7
vmlinux.omap2plus_defconfig.patched
Paul Walmsley (2):
MMC: add workaround for controllers with broken multiblock reads
MMC: omap_hsmmc: disable multiblock reads when platform_data indicates
that they are broken
arch/arm/plat-omap/include/plat/mmc.h | 19 ++++++++++++++++++-
drivers/mmc/card/block.c | 21 ++++++++++++++-------
drivers/mmc/host/omap_hsmmc.c | 4 ++++
include/linux/mmc/host.h | 1 +
4 files changed, 37 insertions(+), 8 deletions(-)
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