tree 0419463d2e89a10dc9ea0dfda54e8f1179b14385
parent aae820c542c0bbf907fff93e3b0fc865465fad60
author Chanh Nguyen <chanh@os.amperecomputing.com> 1615257536 +0700
committer Thang Q. Nguyen <thang@os.amperecomputing.com> 1615300542 +0000

meta-ampere:mtjade:u-boot: Add GPIO support

This is an initial support for the parallel GPIO pins directly connected
to the AHB on the Aspeed 2400/2500.

This brings the functions and a shell command to manipulate the GPIO
state. The GPIO value reading and writing work in non interrupt mode
only.

This is back ported from the patch file from
meta-yadro/meta-nicole/recipes-bsp/u-boot/files/0003-aspeed-add-gpio-support.patch
to support GPIO configuration

Signed-off-by: Alexander Filippov <a.filippov@yadro.com>
Signed-off-by: Thang Q. Nguyen <thangqn@amperecomputing.com>
Signed-off-by: Chanh Nguyen <chanh@os.amperecomputing.com>
Change-Id: I2d97c0fbb9f80bd6c262f03302775936f732b1f1