User:Wens

Mali 400/450 Binary Driver

Mali binary driver r7p0 for Mali-450 targeting X11 on aarch64

Build the kernel driver found at here
Fetch r7p0 userspace binary from here
Configure permissions for /dev/mali in /etc/udev/rules.d/mali.rules

KERNEL=="mali", MODE="0660", GROUP="video"

Set module parameter for drm_kms_helper

 drm_kms_helper.drm_fbdev_overalloc=200

Build and install xf86-video-armsoc from here
For /etc/X11/xorg.conf

Section "Device"
        Identifier "ARMSOC"
        Driver "armsoc"
        Option "DRI2" "true"
EndSection

SD/MMC

This table is based on Allwinner datasheets and usage patterns. For example, mmc0 is always used for SD cards. mmc1 is always used for SDIO. mmc2 and mmc3 are used for embedded SD or eMMC chips.

SoC	Controller	SD ver.	MMC ver.	SDIO	UHS-1	DDR	Max clk.		1.8V (separate power rail)	8-bit
SoC	Controller	SD ver.	MMC ver.	SDIO	UHS-1	DDR	SDR	DDR	1.8V (separate power rail)	8-bit
A10		3.0	4.3	Yes	Yes	Yes	52 MHz		Yes	No
A10s		3.0	4.3	Yes	Yes	No			No seperate pingroup supply
A13		3.0	4.3	Yes	Yes	No			No seperate pingroup supply
A20		3.0	4.3	Yes	Yes	Yes	52 MHz		Yes	No
A23		3.0	4.41	Yes	?	No	52 MHz		No seperate pingroup supply	SDC2 only
A31	MMC0	3.0	4.5	No	Yes	Yes	100 MHz		Yes	No
	MMC1	2.0	N/A	Yes	No	Yes	100 MHz		Yes	No
	MMC2	3.0	4.5	No	Yes	Yes	100 MHz		Yes	Yes (but no DDR)
	MMC3	3.0	4.5	No	Yes	Yes	100 MHz		Yes	Yes
A31s		3.0	4.5	Yes	Yes	Yes	100 MHz		Yes	SDC3 only
A33		2.0	4.41	Yes	No	No	50 MHz		No	SDC2 only
A80		3.0	4.5	Yes	Yes		200 MHz		Yes	SDC2 only
A83		2.0	4.41	Yes	No	Yes	50 MHz		No	SDC2 only
H3	MMC0	2.0	N/A	No	Yes	No	50 MHz		No	No
	MMC1	3.0	N/A	Yes	Yes	???	50 MHz		Yes	No
	MMC2	N/A	4.41	No	Yes	Yes	50 MHz	50 MHz	No	Yes
A64	MMC0	3.0	N/A	No	Maybe	Yes	200 MHz	50 MHz	Yes	No
	MMC1	3.0	N/A	Yes	Maybe	Yes	200 MHz	50 MHz	Yes	No
	MMC2	3.0	5.0	No	Maybe	Yes	200 MHz	150 MHz	Yes	Yes
H5	MMC0	2.0	N/A	No	No	No	50 MHz	N/A	No	No
	MMC1	3.0	N/A	Yes	Maybe	Yes	150 MHz	50 MHz	Yes	No
	MMC2	3.0	5.1	No	Maybe	Yes	150 MHz	100 MHz	Yes	Yes