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Add MMCCAM support to AllWinner MMC driver

Description

Add MMCCAM support to AllWinner MMC driver

Using MMCCAM on AllWinner boards is now possible, reaching highest
possible data transfer speed.

For now, MMCCAM doesn't scan cards on boot. This means that scanning
has to be done manually and that it's not possible to mount root FS
from MMC/SD card since there is no block device at the boot time.

For manually scanning the cards, run:

camcontrol rescan X:0:0

Where X is the bus number (look at camcontrol devlist to determine
bus number assigned to the MMC controller).

Reviewed by: manu
Approved by: imp (mentor)
Differential Revision: https://reviews.freebsd.org/D15891

Details

Committed
kibabJun 21 2018, 11:49 AM
Reviewer
manu
Differential Revision
D15891: Add MMCCAM support to AllWinner MMC driver
Parents
rS335475: Fix uma_zalloc_pcpu_arg() operation in case of !SMP build.
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