Hi, On Wednesday 14 February 2018 10:54 PM, Tony Lindgren wrote: > * Ulf Hansson <ulf.hansson@xxxxxxxxxx> [180214 09:53]: >> On 5 February 2018 at 13:50, Kishon Vijay Abraham I <kishon@xxxxxx> 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? It was decided to have dt file for a single soc revision. So the default dts corresponds to rev 2.0. > > Maybe the silicon revision is not available via soc_device_match()? hmm.. looks like we can get rid of pdata if we use soc_device_match. Thanks for the hint. Regards Kishon -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
