Re: [PATCH v3 0/6] tmio: add support for eMMC with 8 bit bus width

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On 19 September 2016 at 22:57, Wolfram Sang
<wsa+renesas@xxxxxxxxxxxxxxxxxxxx> wrote:
> This series enables SDHI instances on R-Car Gen3 to access eMMC with 8 bit bus
> width. I think the patch descriptions speak for themselves.
>
> I decided to not protect this new feature with a flag because it needs
> specifically to be enabled by setting the bus width to 8. No legacy platform
> does that.
>
> Note that I decided to use the pattern that pinctrl-0 is 3.3v and
> pinctrl-1 is 1.8v, although the eMMC is fixed at 1.8v. I tried a few ways to
> only use pinctrl-0 being 1.8v here, but they all ended up to be confusing for
> users IMO, so I sticked to the most consistent solution after all.
>
> Changes since V2:
>
> * correct node name for sd2_uhs in both devicetrees
>
> Changes since V1:
>
> * merged the two distinct series (drivers + DTS) into one: patches 1-4 are for
>   Ulf, I will ping Simon for patches 5+6 when the time is ready.
>
> * DTS now contains 'non-removable' and we have a software workaround for now.
>
> These patches are based on top of Simon's sdr104-v7 patches but they apply to
> current mmc/next as well. A branch can be found here:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git renesas/topic/sdhi-8bit-emmc
>
> Please review, comment, apply...
>
>    Wolfram
>
> Wolfram Sang (6):
>   mmc: add define for R1 response without CRC
>   mmc: rtsx_pci: use new macro for R1 without CRC
>   mmc: rtsx_usb: use new macro for R1 without CRC
>   mmc: tmio: add eMMC support
>   arm64: dts: r8a7795: salvator: enable on-board eMMC
>   arm64: dts: r8a7796: salvator: enable on board eMMC
>
>  arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts | 43 +++++++++++++++++++++
>  arch/arm64/boot/dts/renesas/r8a7796-salvator-x.dts | 44 +++++++++++++++++++++-
>  drivers/mmc/host/rtsx_pci_sdmmc.c                  |  2 +-
>  drivers/mmc/host/rtsx_usb_sdmmc.c                  |  2 +-
>  drivers/mmc/host/tmio_mmc.h                        |  3 ++
>  drivers/mmc/host/tmio_mmc_pio.c                    | 38 +++++++++++++------
>  include/linux/mmc/core.h                           |  3 ++
>  7 files changed, 120 insertions(+), 15 deletions(-)
>

Thanks, applied patch 1->4 for next. I assume Simon will pick up the
DT changes, sooner or later.

Kind regards
Uffe
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