On 5 February 2018 at 13:50, Kishon Vijay Abraham I <kis...@ti.com> wrote:
> DRA74x EVM Rev H EVM comes with revision 2.0 silicon. However, earlier
> versions of EVM can come with either revision 1.1 or revision 1.0 of
> The device-tree file is written to support rev 2.0 of silicon.
> pdata-quirks are used to then override the settings needed for
> PG 1.1 silicon.
> PG 1.1 silicon has limitations w.r.t frequencies at which MMC1/2/3
> can operate as well as different IOdelay numbers.
I fail to understand the need for platform data. Why can't DT be used
for the older revisions as well?
> Add support in sdhci-omap driver to get platform data if available
> (added using pdata quirks) and override the data (max-frequency and
> iodelay data) obtained from device tree.