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| author |   Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> | 2021-02-12 21:01:56 +0900 |
|---|---|---|
| committer |   Geert Uytterhoeven <geert+renesas@glider.be> | 2021-03-08 10:22:38 +0100 |
| commit | da926e813fc7f9f0912fa413981a1f5ba63a536d (patch) | |
| tree | c707237d24efaff5063fbbd5c53dc469014ce4a0 /arch/arm/boot/dts/r8a7791-koelsch.dts | |
| parent | arm64: dts: renesas: Group tuples in pin control properties (diff) | |
| download | linux-dev-da926e813fc7f9f0912fa413981a1f5ba63a536d.tar.xz linux-dev-da926e813fc7f9f0912fa413981a1f5ba63a536d.zip | |
ARM: dts: renesas: Add mmc aliases into R-Car Gen2 board dts files
After set PROBE_PREFER_ASYNCHRONOUS flag on the mmc host drivers,
the order of /dev/mmcblkN was not fixed in some SoCs which have
multiple SDHI and/or MMCIF controllers. So, we were hard to use
such a 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 R-Car Gen2
board dts files. Note that, since R-Car Gen2 is even more complicated
about SDHI and/or MMCIF channels variations and they share pins,
add the aliases into board dts files instead of SoC dtsi files.
[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")
Fixes: 21b2cec61c04 ("mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/1613131316-30994-1-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Diffstat (limited to 'arch/arm/boot/dts/r8a7791-koelsch.dts')
| -rw-r--r-- | arch/arm/boot/dts/r8a7791-koelsch.dts | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/r8a7791-koelsch.dts b/arch/arm/boot/dts/r8a7791-koelsch.dts index facd703e8336..e4dbf464c960 100644 --- a/arch/arm/boot/dts/r8a7791-koelsch.dts +++ b/arch/arm/boot/dts/r8a7791-koelsch.dts @@ -53,6 +53,9 @@ i2c12 = &i2cexio1; i2c13 = &i2chdmi; i2c14 = &i2cexio4; + mmc0 = &sdhi0; + mmc1 = &sdhi1; + mmc2 = &sdhi2; }; chosen { |