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mmc_do_hw_reset(), mmc_power_up() and mmc_power_off() all set similar
initial values for bus_mode, bus_width, chip_select and timing. Let's
make this handling simpler and more consistent by sticking them
together in a common function. This will introduce small changes in
behavior in the following places:
mmc_power_off():
For SPI hosts, explicitly set bus_mode = MMC_BUSMODE_PUSHPULL and
chip_select = MMC_CS_HIGH, before we left them as they were.
For non-SPI hosts, set bus_mode = MMC_BUSMODE_PUSHPULL instead of
MMC_BUSMODE_OPENDRAIN as before.
These two changes should not be a problem since the device will be
powered off anyway.
mmc_do_hw_reset():
Always set bus_mode = MMC_BUSMODE_PUSHPULL, as required by SD/SDIO
cards. MMC cards require MMC_BUSMODE_OPENDRAIN, but this is taken
care of by mmc_init_card() and mmc_attach_mmc().
Signed-off-by: Johan Rudholm <johanru@axis.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2d079c43bc