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Wed, 4 Nov 2020 12:25:40 +0000 (GMT) Subject: Re: [PATCH] ARM: dts: exynos: Assign a fixed index to mmc devices on exynos4412 based ODROID boards To: Markus Reichl , Rob Herring , Kukjin Kim , Krzysztof Kozlowski Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org From: Marek Szyprowski Message-ID: Date: Wed, 4 Nov 2020 13:25:40 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.4.0 MIME-Version: 1.0 In-Reply-To: <20201104102558.11070-1-m.reichl@fivetechno.de> Content-Transfer-Encoding: 7bit Content-Language: en-US X-Brightmail-Tracker: H4sIAAAAAAAAA01SbUhTYRjl3b3b7kaTt6n4aFYyQjBKG0oMmsM+iNUv//gnKL3mTSU3bfMj TVQ0nY1BZaQ2NNMC28Clq5YfGTZNMb9KIz8SpDRRl5nNQIdWblfLf+c5zznveQ68FCE2cwOo ZHU6o1HTKRKekLR1rw0eflNdF3ukpjtQVtM1yJXdnHYQsqGhRr7MOv2RKxtpreLJKodecWTz XatIVtzexY+ilBOT+Uqr+QZP+fRRvtJp3RdNnhPKE5iU5ExGE6aIEyaZXk6htGrB1fb3y6gA tfH1SEABjgBd2xqpR0JKjB8jGDUVEeywgqClYBa5VWLsRGDqTN129JdXc1lRPQKHZW7LvoSg bHyW51Z5YzU0Vqx5nvLB5Qie3+73WAisQ/C2asyTzsNS0C/qNx0UJcIK+FqsdNMkPgC61k+E G/vieNhwrnuwCO+G3nszpBsLsBzKRx9y3JjA++HFYhXBYj+YmKnhuLMA2/jQ3rHOY+8+BYtl zVutvWGh59kWDoQ/LduGIgSfBxv47GBAMFJYiVjVMZgcdHkuJXAIPGkNY+njsFGn47tpwF4w tribPcILymwVBEuLoLREzKqDwdhj+Rf7+t0wcQtJjDuqGXfUMe6oY/yf+wCRZuTHZGhViYxW qmayQrW0SpuhTgy9mKqyos0f1Pe752cz+jUcb0eYQpJdog5bbayYS2dqs1V2BBQh8RGdGOi7 IBYl0Nk5jCY1VpORwmjtaA9FSvxE4XXz58U4kU5nLjNMGqPZ3nIoQUABujYwayovEa1u/Oi9 5O0123MSZd3NcxXGzCSN8hpCcknLB9VyfxCz7IgsbvpeSuTd191pjlvqr12PdBk4CmfUoaLY XDMhNvi7FL5qf8PRLw7/tojoqbNnwqV7O+mEDntMjvxb1OmgvoEmU+WV66pCjldTvdwSFLyw YhtfmnNKSG0SLT1IaLT0X02hUU89AwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrDIsWRmVeSWpSXmKPExsVy+t/xe7pH5y6KN/h2gMli/pFzrBb9j18z W5w/v4HdYtPja6wWl3fNYbOYcX4fk8XLIz8YLVr3HmF34PC4dafeY9OqTjaPzUvqPT5vkgtg idKzKcovLUlVyMgvLrFVija0MNIztLTQMzKx1DM0No+1MjJV0rezSUnNySxLLdK3S9DLWLnn PmPBXM6KvRc/MjYw7mbvYuTkkBAwkTgzbS5rFyMXh5DAUkaJGy8PM0IkZCROTmtghbCFJf5c 62IDsYUE3jJK3JlXBGILC+RJ/Jt7jAWkWURgCqPEmYnPGUEcZoF2oKK3s9kgxvYzSrQ/2soE 0sImYCjR9RZkFAcHr4CdxNNWD5Awi4CKRPuu28wgtqhAksTLC1PBynkFBCVOznzCAmJzCthI TLu+GCzOLGAmMW/zQ2YIW15i+9s5ULa4xK0n85kmMArNQtI+C0nLLCQts5C0LGBkWcUoklpa nJueW2ykV5yYW1yal66XnJ+7iREYc9uO/dyyg7HrXfAhRgEORiUe3gPbFsYLsSaWFVfmHmKU 4GBWEuF1Ons6Tog3JbGyKrUoP76oNCe1+BCjKdBzE5mlRJPzgekgryTe0NTQ3MLS0NzY3NjM Qkmct0PgYIyQQHpiSWp2ampBahFMHxMHp1QDY+P0AxLObI+NPJ53B+2X+zfXSeJDys3vHKf2 PWiYHBl6vupFQ6LVVvEXZ+WVD1v8W/zPz7Ve5tDvo9WCuxzfnqvffKvKsov/g8m7dDPGlXtW HVsVqmWpZXx2ceqP+e/uHigPLi/udn3cu5l1PrflbmmHiWKy2X1p7K3cJYd9WX0e7Xjtm8J2 RImlOCPRUIu5qDgRAMAs8x/PAgAA X-CMS-MailID: 20201104122541eucas1p10a2e6b8a553821f109e6fa328b687936 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20201104102634eucas1p2ec7b705dd5092afa25d9877d1014f46a X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20201104102634eucas1p2ec7b705dd5092afa25d9877d1014f46a References: <20201104102558.11070-1-m.reichl@fivetechno.de> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Markus, On 04.11.2020 11:25, Markus Reichl wrote: > Recently introduced async probe on mmc devices can shuffle block IDs. > Pin them to fixed values to ease booting in evironments where UUIDs ar not practical. > Use newly introduced aliases for mmcblk devices from [1]. > > [1] > https://patchwork.kernel.org/patch/11747669/ > > Signed-off-by: Markus Reichl > --- > arch/arm/boot/dts/exynos4412-odroid-common.dtsi | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi > index a5c1ce1e396c..aa10d5bc7e1c 100644 > --- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi > +++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi > @@ -13,6 +13,11 @@ > #include "exynos-mfc-reserved-memory.dtsi" > > / { > + aliases { > + mmc0 = &sdhci_2; > + mmc1 = &mshc_0; Like in the OdroidXU3-family patch, I would use 0 for the eMMC (mshc_0) and 2 for the SD-card (sdhci_2). > + }; > + > chosen { > stdout-path = &serial_1; > }; Best regards -- Marek Szyprowski, PhD Samsung R&D Institute Poland