mmc: sdhci_am654: Add Support for 8 bit IP on J721E
The 8 bit IP on the TI's J721E device departs from the AM654x IP in some ways which require special handling. Create a driver_data structure which holds the pltfm_data and a flags field which is used to indicate these differences. These are the following: 1. The pins are not muxed with anything else inside the SoC and hence the IOMUX_ENABLE field does not exist. Add a flag which is used to indicate the presence of the field. 2. The register field used to select DLL frequency is 3 bit wide as compared to 2 bits in AM65x. Add another flag which differentiates between 3 bit and 2 bit fields. 3. The strobe select field is 8 bit wide as compared to 4 bits for AM65x. Add yet another flag to indicate this difference. Strobe select is used only for HS400 speed mode, support for which has not yet been added in AM65x. Signed-off-by:Faiz Abbas <faiz_abbas@ti.com> Acked-by:
Adrian Hunter <adrian.hunter@intel.com> Signed-off-by:
Ulf Hansson <ulf.hansson@linaro.org>
parent
a457b709
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