Anssi Hannula 3d4ef32975 mmc: core: fix multi-bit bus width without high-speed mode ... Commit 577fb13199 ("mmc: rework selection of bus speed mode") refactored bus width selection code to mmc_select_bus_width(). However, it also altered the behavior to not call the selection code in non-high-speed modes anymore. This causes 1-bit mode to always be used when the high-speed mode is not enabled, even though 4-bit and 8-bit bus are valid bus widths in the backwards-compatibility (legacy) mode as well (see e.g. 5.3.2 Bus Speed Modes in JEDEC 84-B50). This results in a significant regression in transfer speeds. Fix the code to allow 4-bit and 8-bit widths even without high-speed mode, as before. Tested with a Zynq-7000 PicoZed 7020 board. Fixes: 577fb13199 ("mmc: rework selection of bus speed mode") Signed-off-by: Anssi Hannula <anssi.hannula@bitwise.fi> Cc: <stable@vger.kernel.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>		2017-02-14 08:50:10 +01:00
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core	mmc: core: fix multi-bit bus width without high-speed mode	2017-02-14 08:50:10 +01:00
host	mmc: mmci: avoid clearing ST Micro busy end interrupt mistakenly	2017-02-08 12:22:27 +01:00
Kconfig	mmc: block: Move files to core	2016-12-12 16:30:05 +01:00
Makefile	mmc: block: Move files to core	2016-12-12 16:30:05 +01:00