Hi, On Mon, Apr 19, 2021 at 10:52 AM Samuel Holland <samuel@xxxxxxxxxxxx> wrote: > > Dealing with the inconsistent numbering has been a major pain, and > there is a solution with (as far as I can tell) no tangible downsides. > So let's use it. > > Yes, I know the kernel supports UUIDs for root=. But UUIDs do not help > when referencing the whole, unpartitioned device, like is needed for > updating the bootloader and firmware. So for the use case of "write a > bootloader to the SD card, regardless of where the board is currently > booted from", I know of two options: > - Dig around in sysfs to find the mmc number from the MMIO address, > which means I have to know the MMIO addresses for every SoC, or > - Apply patches like these. > > Samuel Holland (2): > ARM: dts: sunxi: h3/h5: Enforce consistent MMC numbering > arm64: dts: allwinner: Enforce consistent MMC numbering > > arch/arm/boot/dts/sunxi-h3-h5.dtsi | 6 ++++++ > arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 6 ++++++ > arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 6 ++++++ At least with Rockchip this is now done at the board level. IIRC it was a request from other people to not do it at the SoC level. I don't recall exactly who though. ChenYu > 3 files changed, 18 insertions(+) > > -- > 2.26.3 > >
