forked from Openwrt-EcoNet/openwrt
fa70b3a4bb
This adds 3 Mikrotik rb4xx series drivers as follows: rb4xx-cpld: This is in the mfd subsystem, and is the parent CPLD device that interfaces between the SoC SPI bus and its two children below. rb4xx-gpio: This is the GPIO expander. rb4xx-nand: This is the NAND driver. The history of this code comes in three phases. 1. The first is a May 2015 attempt to push the equivalient ar71xx rb4xx drivers upstream. See https://lore.kernel.org/patchwork/patch/940880/. Module-author: Gabor Juhos <juhosg@openwrt.org> Module-author: Imre Kaloz <kaloz@openwrt.org> Module-author: Bert Vermeulen <bert@biot.com> 2. Next several ar71xx patches were applied bringing the code current. commit7bbf4117c6Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> commitaf79fdbe4acommit889272d92dcommite21cb649a2commit7c09fa4a74Signed-off-by: Felix Fietkau <nbd@nbd.name> 3. Finally a heavy refactor to split the driver into the three new subsystems, and updated to work with the device tree configuration, plus updates and review feedback incorporated Reviewed-by: Thibaut VARÈNE <hacks@slashdirt.org> Signed-off-by: Christopher Hill <ch6574@gmail.com>