mmc: sdhci: sdhci-pci-o2micro: Check if controller supports 8-bit width
The O2 controller supports 8-bit EMMC access. JESD84-B51 section A.6.3.a defines the bus testing procedure that `mmc_select_bus_width()` implements. This is used to determine the actual bus width of the eMMC. Signed-off-by:Raul E Rangel <rrangel@chromium.org> Acked-by:
Adrian Hunter <adrian.hunter@intel.com> Signed-off-by:
Ulf Hansson <ulf.hansson@linaro.org>
parent
99a93444