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 ++++++
3 files changed, 18 insertions(+)
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2.26.3
