Alexander Stein <alexander.stein@xxxxxxxxxxx> writes: > Recently introduced async probe on mmc devices can shuffle block IDs. > Pin them to fixed values to ease booting in environments where UUIDs > are not practical. Use newly introduced aliases for mmcblk devices from [1]. > [1] > https://patchwork.kernel.org/patch/11747669/ > > Commit message taken from commit 0011c6d18277 ("arm64: dts: rockchip: Assign a fixed index to mmc devices on rk3399 boards.") > > The unconventional order (B, C, A) is due to the fact that sd_emmc_a is > (according to the comments) only used for SDIO. > > AFAICS all boards either have both sd_emmc_b and sd_emmc_c or only one of > them enabled. So the alias order should match the previous non-async order > for all of them. > > Signed-off-by: Alexander Stein <alexander.stein@xxxxxxxxxxx> > --- > Just for the records, I only tested this on my ODROID-N2 (G12 based) board. > > arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi | 6 ++++++ > arch/arm64/boot/dts/amlogic/meson-gx.dtsi | 6 ++++++ > 2 files changed, 12 insertions(+) > > diff --git a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi > index 9c90d562ada1..15525f3aa4a6 100644 > --- a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi > +++ b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi > @@ -17,6 +17,12 @@ / { > #address-cells = <2>; > #size-cells = <2>; > > + aliases { > + mmc0 = &sd_emmc_b; > + mmc1 = &sd_emmc_c; > + mmc2 = &sd_emmc_a; > + }; > + Thanks for updating this. minor nit: as I suggested earlier, could you add comments here showing the intention that mmc0 -> SD, mmc1 -> eMMC, mmc2 -> SDIO Kevin
