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Message-ID: <c1a4a7ab5c68c00dd8b3bb249c0371dbb8bcb929.camel@xry111.site>
Date:   Fri, 22 Sep 2023 19:41:37 +0800
From:   Xi Ruoyao <xry111@...111.site>
To:     Drew Fustini <dfustini@...libre.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Jisheng Zhang <jszhang@...nel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Guo Ren <guoren@...nel.org>, Fu Wei <wefu@...hat.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Conor Dooley <conor@...nel.org>
Cc:     Robert Nelson <robertcnelson@...gleboard.org>,
        Jason Kridner <jkridner@...gleboard.org>,
        Han Gao <gaohan@...as.ac.cn>, Icenowy Zheng <uwu@...nowy.me>,
        linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH 0/6] RISC-V: Add eMMC support for TH1520 boards

On Thu, 2023-09-21 at 18:49 -0700, Drew Fustini wrote:
> This series adds support for the eMMC on the BeagleV Ahead and the
> Sipeed LicheePi 4A. This allows the kernel to boot with the rootfs on
> eMMC.
> 
> I tested on top of v6.6-rc2 with this config [1]. I was able to boot
> both the Ahead [2] and LPi4a [3] from eMMC. The following prerequisites
> are required:
> 
>   [PATCH v2] riscv: dts: thead: set dma-noncoherent to soc bus [4]
> 
> I pushed a branch [5] with this patch series and the above patch for
> those that find a git branch easier to test.
> 
> Please note that only the MMC controller connected to the eMMC device
> is enabled in the device trees for these two boards. I did not yet
> attempt to configure and use the microSD card slot. My preference is to
> address that in a future patch series.
> 
> References:
> [1] https://gist.github.com/pdp7/5fbdcf2a65eb1abdd3a29d519c19cdd2
> [2] https://gist.github.com/pdp7/91a801a5f8d1070c53509eda9800ad78
> [3] https://gist.github.com/pdp7/1445c3c991e88fd69c60165cef65726a
> [4] https://lore.kernel.org/linux-riscv/20230912072232.2455-1-jszhang@kernel.org/
> [5] https://github.com/pdp7/linux/tree/b4/th1520-mmc

I've tested this branch and successfully booted a rootfs on Lichee Pi 4A
eMMC with rootdelay=10.

Curiously is there some way to make it work without rootdelay?

For everything except "Enable BeagleV Ahead eMMC controller":

Tested-by: Xi Ruoyao <xry111@...111.site>

-- 
Xi Ruoyao <xry111@...111.site>
School of Aerospace Science and Technology, Xidian University

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