Messages in this thread | | | Date | Wed, 14 Feb 2018 09:24:56 -0800 | From | Tony Lindgren <> | Subject | Re: [PATCH v2 08/16] mmc: sdhci-omap: Add support to override f_max and iodelay from pdata |
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* Ulf Hansson <ulf.hansson@linaro.org> [180214 09:53]: > On 5 February 2018 at 13:50, Kishon Vijay Abraham I <kishon@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 > > silicon. > > > > 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?
Maybe the silicon revision is not available via soc_device_match()?
Regards,
Tony
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