Messages in this thread | | | Subject | Re: [PATCH v13 3/3] dt-bindings: mfd: Document Renesas R-Car Gen3 RPC-IF controller bindings | From | Marek Vasut <> | Date | Tue, 18 Jun 2019 14:01:40 +0200 |
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On 6/6/19 9:40 AM, masonccyang@mxic.com.tw wrote: [...]
> RPC-IF works either in SPI or HyperFlash is decided by external hardware > pins > configuration and it can NOT switch it's operation mode in the run time. > This is not like my understanding of MFD.
Which external hardware pins decide the RPC configuration ?
It seems to me like PHYCNT register, PHYMEM bitfield, selects what device is connected, and then a couple of other bits control the communication, but I see nothing which would be tied to any external configuration pins.
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-- Best regards, Marek Vasut
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