Hi Marek, > Subject > > Re: [PATCH v13 3/3] dt-bindings: mfd: Document Renesas R-Car Gen3 RPC-IF > controller bindings > > On 6/6/19 9:40 AM, masonccyang@xxxxxxxxxxx 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. > You may refer to R-Car D3 Draak Eva. board hardware manual and start-up guide, i.e., Table 2.12 Pin Multiplexing of R-Car D3 Mode setting pins and set by hardware switch 1, 2, 3, 13, 31 and 10 to configure booting from SPI mode or HyperFlash mode. thanks & best regards, Mason CONFIDENTIALITY NOTE: This e-mail and any attachments may contain confidential information and/or personal data, which is protected by applicable laws. Please be reminded that duplication, disclosure, distribution, or use of this e-mail (and/or its attachments) or any part thereof is prohibited. If you receive this e-mail in error, please notify us immediately and delete this mail as well as its attachment(s) from your system. In addition, please be informed that collection, processing, and/or use of personal data is prohibited unless expressly permitted by personal data protection laws. Thank you for your attention and cooperation. Macronix International Co., Ltd. ===================================================================== ============================================================================ CONFIDENTIALITY NOTE: This e-mail and any attachments may contain confidential information and/or personal data, which is protected by applicable laws. Please be reminded that duplication, disclosure, distribution, or use of this e-mail (and/or its attachments) or any part thereof is prohibited. If you receive this e-mail in error, please notify us immediately and delete this mail as well as its attachment(s) from your system. In addition, please be informed that collection, processing, and/or use of personal data is prohibited unless expressly permitted by personal data protection laws. Thank you for your attention and cooperation. Macronix International Co., Ltd. =====================================================================
