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[ Upstream commitd765a4f302] After the commit7320915c88("mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.14"), the order of /dev/mmcblkN was not fixed in some SoCs which have multiple sdhi controllers. So, we were hard to use an sdhi device as rootfs by using the kernel parameter like "root=/dev/mmcblkNpM". According to the discussion on a mainling list [1], we can add mmc aliases to fix the issue. So, add such aliases into Renesas arm64 board dts files. Notes that mmc0 is an eMMC channel if available. [1] https://lore.kernel.org/linux-arm-kernel/CAPDyKFptyEQNJu8cqzMt2WRFZcwEdjDiytMBp96nkoZyprTgmA@mail.gmail.com/ Fixes:7320915c88("mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.14") Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/1614596786-22326-1-git-send-email-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Sasha Levin <sashal@kernel.org>
33 lines
588 B
Plaintext
33 lines
588 B
Plaintext
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright 2020, Compass Electronics Group, LLC
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*/
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/dts-v1/;
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#include "r8a774a1.dtsi"
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#include "beacon-renesom-som.dtsi"
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#include "beacon-renesom-baseboard.dtsi"
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/ {
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model = "Beacon EmbeddedWorks RZ/G2M Development Kit";
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compatible = "beacon,beacon-rzg2m", "renesas,r8a774a1";
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aliases {
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serial0 = &scif2;
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serial1 = &hscif0;
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serial2 = &hscif1;
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serial3 = &scif0;
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serial4 = &hscif2;
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serial5 = &scif5;
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ethernet0 = &avb;
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mmc0 = &sdhi3;
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mmc1 = &sdhi0;
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mmc2 = &sdhi2;
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};
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chosen {
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stdout-path = "serial0:115200n8";
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};
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};
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