remove prototypes with no matching function
ok mpi@

Add Allwinner H616 support.

ok uaa@

Add Allwinner D1 support.

ok jca@, patrick@

Constify struct cfattach.

ok visa@ a long time ago, ok patrick@

sximmc(4): tsleep(9) -> tsleep_nsec(9)

mpi@ missed this one in the prior commit.

probably ok bluhm@

Convert sleeps of 1sec or more to tsleep_nsec(9).

ok bluhm@

Handle "broken-cd" as "non-removable" for now. This will generate some
error messages if a card is absent from the slot, but other workarounds
are much more complicated.

From SASANO Takayoshi.

Remove the hand-rolled maximum segment size handling in sximmc(4)
since we now have the possibility to specify it in the attach args.

ok kettenis@

Unify messaged printed when we can't estiblish an interrupt.

Pointed out by Artturi Alm.

Add support for Allwinner A64's eMMC controller. It is essentially
the same as the MMC controller but has the same DMA max length as
the A10 SoC. This makes the eMMC work on the Pinebook.

ok jsg@

Give the FDT interrupt API a more generic naming by replacing the
arm_intr_* prefix with fdt_intr_*.

ok kettenis@

Add SDIO support:
- Implement SDIO interrupt handling
- Set control bit that allows CPU access to the FIFO
- Fix PIO transfers that are not a multiple of 4 bytes
- Handle vqmmc-supply

ok patrick@

Add support for Allwinner A64/H5 device trees that use the official Linux
bindings. The current U-Boot device trees are somewhat broken and keep
the SD-card controller from working.

double ;;. xhci one found by geoffhill

Move Allwinner drivers that will soon be used by OpenBSD/arm64
to the new MI FDT driver directory.

"go ahead" kettenis@