d765a4f302
After the commit 7320915c8861 ("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: 7320915c8861 ("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>
70 lines
1.6 KiB
Plaintext
70 lines
1.6 KiB
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 "r8a774b1.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 Embedded Works RZ/G2N Development Kit";
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compatible = "beacon,beacon-rzg2n", "renesas,r8a774b1";
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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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serial6 = &scif4;
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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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&du {
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pinctrl-0 = <&du_pins>;
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pinctrl-names = "default";
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status = "okay";
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clocks = <&cpg CPG_MOD 724>,
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<&cpg CPG_MOD 723>,
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<&cpg CPG_MOD 721>,
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<&versaclock5 1>,
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<&x302_clk>,
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<&versaclock5 2>;
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clock-names = "du.0", "du.1", "du.3",
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"dclkin.0", "dclkin.1", "dclkin.3";
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};
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/* Reference versaclock instead of audio_clk_a */
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&rcar_sound {
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clocks = <&cpg CPG_MOD 1005>,
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<&cpg CPG_MOD 1006>, <&cpg CPG_MOD 1007>,
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<&cpg CPG_MOD 1008>, <&cpg CPG_MOD 1009>,
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<&cpg CPG_MOD 1010>, <&cpg CPG_MOD 1011>,
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<&cpg CPG_MOD 1012>, <&cpg CPG_MOD 1013>,
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<&cpg CPG_MOD 1014>, <&cpg CPG_MOD 1015>,
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<&cpg CPG_MOD 1022>, <&cpg CPG_MOD 1023>,
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<&cpg CPG_MOD 1024>, <&cpg CPG_MOD 1025>,
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<&cpg CPG_MOD 1026>, <&cpg CPG_MOD 1027>,
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<&cpg CPG_MOD 1028>, <&cpg CPG_MOD 1029>,
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<&cpg CPG_MOD 1030>, <&cpg CPG_MOD 1031>,
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<&cpg CPG_MOD 1020>, <&cpg CPG_MOD 1021>,
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<&cpg CPG_MOD 1020>, <&cpg CPG_MOD 1021>,
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<&cpg CPG_MOD 1019>, <&cpg CPG_MOD 1018>,
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<&versaclock6_bb 4>, <&audio_clk_b>,
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<&audio_clk_c>,
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<&cpg CPG_CORE R8A774B1_CLK_S0D4>;
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};
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