Cool. I'll see if I can work on the imxrt file then, in the branch I linked
to above.

cheers
adam

On Sat, Mar 7, 2020 at 6:15 PM Takeyoshi Kikuchi <kiku...@centurysys.co.jp>
wrote:

> Adam,
>
> Since standards are determined by SD assotication, I think that the
> number of implementations according to the specifications has increased
> recently.
>
> https://www.sdcard.org/downloads/pls/index.html
>
> Because it includes DMA, I found it by greping the register.
>
> Since the implementation of imxrt supports 2 slots, I think that it is
> easier to port it considering the structure of the driver.
>
> Takeyoshi Kikuchi
>
>
> On 2020/03/08 10:52, Adam Feuer wrote:
> > They do look like the same register sets. Thanks for the pointer to them.
> > By the way, how did you find them...? :)
> >
> > I have to look at both files more closely... the Sony one is about 1400
> > lines longer, so they seem somewhat different from each other. Have you
> > looked at these files at all? If so which one do you think is a better
> > starting point...?
> >
> > cheers
> > adam
> >
> > On Sat, Mar 7, 2020 at 3:28 PM Adam Feuer <a...@starcat.io> wrote:
> >
> >> Thanks. I was on my phone last night and couldn't find the right
> files...
> >> I'll check out the ones you mentioned.
> >>
> >> cheers
> >> adam
> >>
> >> On Fri, Mar 6, 2020 at 10:33 PM Takeyoshi Kikuchi <
> >> kiku...@centurysys.co.jp> wrote:
> >>
> >>> No,
> >>>
> >>> In addition to the board-specific parts you implemented, we need to
> port
> >>> the code of nuttx/arch/arm/src/cxd56xx/cxd56_sdhci.c or
> >>> nuttx/arch/arm/src/imxrt/imxrt_usdhc.c to sama5d2.
> >>>
> >>>
> >>>
> >>> On 2020/03/07 15:15, Adam Feuer wrote:
> >>>> This one?
> >>>>
> >>>>
> >>>
> https://github.com/apache/incubator-nuttx/blob/master/boards/arm/cxd56xx/spresense/src/cxd56_sdcard.c
> >>>>
> >>>> On Fri, Mar 6, 2020 at 21:42 Adam Feuer <a...@starcat.io
> >>>> <mailto:a...@starcat.io>> wrote:
> >>>>
> >>>>      Do those have NuttX implementations? If so will you point me at
> >>> them?
> >>>>
> >>>>      -adam
> >>>>
> >>>>      On Fri, Mar 6, 2020 at 21:40 Takeyoshi Kikuchi
> >>>>      <kiku...@centurysys.co.jp <mailto:kiku...@centurysys.co.jp>>
> wrote:
> >>>>
> >>>>          Adam,
> >>>>
> >>>>          Since the SDMMC controller of the SAMA5D2 series is
> compatible
> >>>>          with the
> >>>>          standard register set, I think it is better to port the
> >>>>          implementation
> >>>>          of SONY CXD56xx or NXP i.MXRT.
> >>>>
> >>>>          Takeyoshi Kikuchi
> >>>>
> >>>>          On 2020/03/07 9:29, Adam Feuer wrote:
> >>>>           > Takeyoshi,
> >>>>           >
> >>>>           > I started a branch for SAMA5D27 SDMMC support, it's here:
> >>>>           >
> >>>>           >
> >>>>
> >>>
> https://github.com/starcat-io/incubator-nuttx/tree/feature/sama5d27-sdmmc-support
> >>>>           >
> >>>>           > I just started it, so not much progress, but I'll let you
> >>>>          know if I get
> >>>>           > any further.
> >>>>           >
> >>>>           > -adam
> >>>>           > --
> >>>>           > Adam Feuer <a...@starcat.io <mailto:a...@starcat.io>
> >>>>          <mailto:a...@starcat.io <mailto:a...@starcat.io>>>
> >>>>
> >>>>          --
> >>>>          ---------------------------------
> >>>>          Takeyoshi Kikuchi
> >>>>          kiku...@centurysys.co.jp <mailto:kiku...@centurysys.co.jp>
> >>>>
> >>>>      --
> >>>>      Adam Feuer <a...@starcat.io <mailto:a...@starcat.io>>
> >>>>
> >>>> --
> >>>> Adam Feuer <a...@starcat.io <mailto:a...@starcat.io>>
> >>>
> >>> --
> >>> ---------------------------------
> >>> センチュリー・システムズ株式会社
> >>> ソフトウェア開発第四部
> >>> 菊地 武義
> >>> kiku...@centurysys.co.jp
> >>>
> >>
> >>
> >> --
> >> Adam Feuer <a...@starcat.io>
> >>
> >
> >
>
> --
> ---------------------------------
> Takeyoshi Kikuchi
> kiku...@centurysys.co.jp
>


-- 
Adam Feuer <a...@starcat.io>

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