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    SubjectRe: [PATCH V5 00/26] Add support UHS-II for GL9755
    Hi, Ulf

    Ulf Hansson <ulf.hansson@linaro.org> 於 2022年10月17日 週一 晚上7:32寫道:

    >
    > Hi Victor,
    >
    > On Fri, 14 Oct 2022 at 13:47, Victor Shih <victorshihgli@gmail.com> wrote:
    > >
    > > Summary
    > > =======
    > > These patches[1] support UHS-II and fix GL9755 UHS-II compatibility.
    > >
    > > About UHS-II, roughly deal with the following three parts:
    > > 1) A UHS-II detection and initialization:
    > > - Host setup to support UHS-II (Section 3.13.1 Host Controller Setup Sequence
    > > [2]).
    > > - Detect a UHS-II I/F (Section 3.13.2 Card Interface Detection Sequence[2]).
    > > - In step(9) of Section 3.13.2 in [2], UHS-II initialization is include Section
    > > 3.13.3 UHS-II Card Initialization and Section 3.13.4 UHS-II Setting Register
    > > Setup Sequence.
    > >
    > > 2) Send Legacy SD command through SD-TRAN
    > > - Encapsulated SD packets are defined in SD-TRAN in order to ensure Legacy SD
    > > compatibility and preserve Legacy SD infrastructures (Section 7.1.1 Packet
    > > Types and Format Overview[3]).
    > > - Host issue a UHS-II CCMD packet or a UHS-II DCMD (Section 3.13.5 UHS-II
    > > CCMD Packet issuing and Section 3.13.6 UHS-II DCMD Packet issuing[2]).
    > >
    > > 3) UHS-II Interrupt
    > > - Except for UHS-II error interrupts, most interrupts share the original
    > > interrupt registers.
    > >
    > > Patch structure
    > > ===============
    > > patch#1-#6: for core
    > > patch#7-#25: for sdhci
    > > patch#26: for GL9755
    > >
    > > Changes in v5 (Oct. 14, 2022)
    > > * rebased to linux-v6.0.
    >
    > You sent a v5 on Oct 14 and then this one (v5 again) today. Why? What
    > is the difference?

    I left out two files in the October 14th edition, so I added it back
    in the October 17th edition, but I forgot to change the date of the
    cover-letter.

    >
    > Moreover, as v6.1-rc1 is now available, my next branch will be based
    > on that. Can you please rebase the series on top of my next branch -
    > or at least use the latest available "rc", when you test and submit?

    Ok, I will follow your advice.
    I will rebase to the linux-v6.1-rc1 in your next branch.

    >
    > > * according to the guidance and overall architecture provided
    > > by Ulf Hansson, Ben Chuang and Jason Lai to implement the
    > > UHS-2 Core function based on the patches of the [V4,0/6]
    > > Preparations to support SD UHS-II cards[5].
    > > * according to the guidance and comments provided by
    > > Adrian Hunter, Ben Chuang and AKASHI Takahiro to implement
    > > the UHS-2 Host function based on the patches of the
    > > [RFC,v3.1,00/27] Add support UHS-II for GL9755[4].
    > > * implement the necessary function to let the UHS-2 Core/Host
    > > work properly.
    > > * fix most of checkpatch warnings/errors
    > >
    > > Reference
    > > =========
    > > [1] https://gitlab.com/ben.chuang/linux-uhs2-gl9755.git
    > > [2] SD Host Controller Simplified Specification 4.20
    > > [3] UHS-II Simplified Addendum 1.02
    > > [4] https://patchwork.kernel.org/project/linux-mmc/cover/20201106022726.19831-1-takahiro.akashi@linaro.org/
    > > [5] https://patchwork.kernel.org/project/linux-mmc/cover/20220418115833.10738-1-jasonlai.genesyslogic@gmail.com/
    >
    > Another general question, I assume you intend to move this forward
    > instead of Jason Lai, right?

    Yes. Please let me know if I have any mistakes.

    >
    > Kind regards
    > Uffe

    Thanks, Victor Shih

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