Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:5 as permitted sender) client-ip=2620:137:e000::3:5;
Message-ID: <1caa7866e2a557d2da05adee29cb8ab8fe86ea25.camel@xry111.site>
Subject: Re: [PATCH 0/6] RISC-V: Add eMMC support for TH1520 boards
From:   Xi Ruoyao <xry111@xry111.site>
To:     Drew Fustini <dfustini@baylibre.com>
Cc:     Ulf Hansson <ulf.hansson@linaro.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        Jisheng Zhang <jszhang@kernel.org>,
        Adrian Hunter <adrian.hunter@intel.com>,
        Guo Ren <guoren@kernel.org>, Fu Wei <wefu@redhat.com>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Conor Dooley <conor@kernel.org>,
        Robert Nelson <robertcnelson@beagleboard.org>,
        Jason Kridner <jkridner@beagleboard.org>,
        Han Gao <gaohan@iscas.ac.cn>, Icenowy Zheng <uwu@icenowy.me>,
        linux-mmc@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org
Date:   Sun, 24 Sep 2023 00:33:41 +0800
In-Reply-To: <ZQ2/eUKbW3wK7kHp@x1>
References: <20230921-th1520-mmc-v1-0-49f76c274fb3@baylibre.com>
         <c1a4a7ab5c68c00dd8b3bb249c0371dbb8bcb929.camel@xry111.site>
         <ZQ2/eUKbW3wK7kHp@x1>
Autocrypt: addr=xry111@xry111.site; prefer-encrypt=mutual;
 keydata=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
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
User-Agent: Evolution 3.50.0 
MIME-Version: 1.0
Precedence: bulk

On Fri, 2023-09-22 at 09:23 -0700, Drew Fustini wrote:
> > I've tested this branch and successfully booted a rootfs on Lichee Pi 4=
A
> > eMMC with rootdelay=3D10.
> >=20
> > Curiously is there some way to make it work without rootdelay?
>=20
> Thank you for testing.
>=20
> This is the kernel command line that I am using on both the lpi4 and
> the ahead:
>=20
> root=3D/dev/mmcblk0p3 ro rootfstype=3Dext4 rootwait console=3DttyS0,11520=
0
>=20
> I seem to recall that before I used rootwait that there would be a VFS
> oops because mmcblk0p3 didn't exist yet.
>=20
> Have you tried rootwait instead of the 10 second delay?

I just tried rootwait several times and it works for me.

(When I tried it yesterday it did not work initially, so I switched to
rootdelay.  I guess I'd mistyped something in the initial attempt).

--=20
Xi Ruoyao <xry111@xry111.site>
School of Aerospace Science and Technology, Xidian University