Lack of eMMC and ethernet support in Linux about quartz64_uefi

[jaredmcneill]

Those devices are exposed by the ACPI tables to the OS. The hardware IDs used tell the OS which driver / settings to use to configure the device.

For eMMC and ethernet, Linux supports the hardware, but needs changes to teach the the driver how to bind to the ACPI devices exposed by my firmware.

The eMMC device should work with the sdhci driver, and some changes to use the special _DSM introduced in this port and documented in the README to work around a SoC specific quirk: https://github.com/jaredmcneill/quartz64_uefi/blob/main/edk2-rockchip/Platform/Rockchip/Rk356x/AcpiTables/Emmc.asl#L12

Ethernet is declared here and could be supported by the stmmac driver. I tried to keep this one as close to the device tree bindings as possible using a DeviceTree (DT) link device, but last I checked the stmmac driver doesn’t use the correct APIs to support both DeviceTree and ACPI bindings: https://github.com/jaredmcneill/quartz64_uefi/blob/main/edk2-rockchip/Platform/Rockchip/Rk356x/AcpiTables/Gmac.asl#L11

I spend most of my time working on other OSes so I haven’t looked in to it any more than that. Hoping someone else would pick up that work :)