Messages in this thread | | | Subject | Re: [PATCH 1/2] ARM: dts: am57xx-beagle-x15: Remove pinmux configurations | From | Nishanth Menon <> | Date | Fri, 2 Sep 2016 09:52:21 -0500 |
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On 09/02/2016 05:18 AM, Sekhar Nori wrote: > On Friday 02 September 2016 02:35 PM, Nishanth Menon wrote: >> pinmuxing for DRA7x/AM57x family of processors need to be done in IO >> isolation as part of initial bootloader executed from SRAM. This is >> done as part of iodelay configuration sequence and is required due to >> the limitations introduced by erratum ID: i869[1] and elaborated in >> the Technical Reference Manual[2] 18.4.6.1.7 Isolation Requirements. >> >> Only peripheral that is permitted for dynamic pin mux configuration is >> MMC. This is to accommodate the requirements for varied speeds (which > > Actually its MMC and DCAN. DCAN because of i893 ("DCAN Initialization > Sequence"). But I can see you may have omitted reference to it since > DCAN is not really used on the x15.
True, I should add that for completeness. will do. thanks for catching the same.
-- Regards, Nishanth Menon
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