Hi Shimoda-san,
CC devicetree
On Fri, Nov 6, 2020 at 10:28 AM Yoshihiro Shimoda
<yoshihiro.shimoda.uh@xxxxxxxxxxx> wrote:
> After the commit 7320915c8861 ("mmc: Set PROBE_PREFER_ASYNCHRONOUS
> for drivers that existed in v4.14"), the order of /dev/mmcblkN
> was not fixed, so that we are hard to use the device as rootfs
> by using a kernel parameter like root=/dev/mmcblkN. So, add
> sdhi/mmc aliases.
>
> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
Thanks for your patch!
> ---
> I'm afraid, but I only tested on r8a77951-salvator-xs.
>
> If possible, I would like to apply this patch into v5.10-stable
> because we are hard to use the device as rootfs as I described
> the commit description.
Please don't add aliases for various devices.
You can specify the root file system to mount using PARTUUID= or
PARTLABEL= (by the kernel), or using UUID= or LABEL= (by an initramfs).
This is the same for /dev/sd*, which may change after a kernel
upgrade.
>
> arch/arm64/boot/dts/renesas/r8a774a1.dtsi | 4 ++++
> arch/arm64/boot/dts/renesas/r8a774b1.dtsi | 7 +++++++
> arch/arm64/boot/dts/renesas/r8a774c0.dtsi | 6 ++++++
> arch/arm64/boot/dts/renesas/r8a774e1.dtsi | 7 +++++++
> arch/arm64/boot/dts/renesas/r8a77951.dtsi | 4 ++++
> arch/arm64/boot/dts/renesas/r8a77960.dtsi | 4 ++++
> arch/arm64/boot/dts/renesas/r8a77961.dtsi | 7 +++++++
> arch/arm64/boot/dts/renesas/r8a77965.dtsi | 4 ++++
> arch/arm64/boot/dts/renesas/r8a77970.dtsi | 1 +
> arch/arm64/boot/dts/renesas/r8a77980.dtsi | 1 +
> arch/arm64/boot/dts/renesas/r8a77990.dtsi | 3 +++
> arch/arm64/boot/dts/renesas/r8a77995.dtsi | 4 ++++
> 12 files changed, 52 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/renesas/r8a774a1.dtsi b/arch/arm64/boot/dts/renesas/r8a774a1.dtsi
> index 8e80f50..9165e88 100644
> --- a/arch/arm64/boot/dts/renesas/r8a774a1.dtsi
> +++ b/arch/arm64/boot/dts/renesas/r8a774a1.dtsi
> @@ -26,6 +26,10 @@
> i2c5 = &i2c5;
> i2c6 = &i2c6;
> i2c7 = &i2c_dvfs;
> + mmc0 = &sdhi0;
> + mmc1 = &sdhi1;
> + mmc2 = &sdhi2;
> + mmc3 = &sdhi3;
> };
>
> /*
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
