Instead of trying to figure out the actual root device, just use the
kernel 'root' cmdline parameter as a hint to decide which device to
flash to.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
A line in platform.sh was accidentally removed when adding support
for the Bananapi BPi-R3.
Re-add it to fix sysupgrade on the MTK7986 rfba AP.
Fixes: a96382c1bb ("mediatek: add support for Bananapi BPi-R3")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
The Bananapi BPi-R3 is a development router board built around the
MediaTek Filogic 830 (MT7986A) SoC.
The board can boot either from microSD, SPI-NAND, SPI-NOR or eMMC.
Only either SPI-NAND or SPI-NOR can be used at the same time, also only
either microSD or eMMC can be used. The various storage options can be
selected using small SMD switches on the board.
Specs:
* MediaTek MT7986A (Filogic 830) 4x ARM Cortex A53
* 4T4R 2.4G 802.11bgnax (MT7975N)
* 4T4R 5G 802.11anac/ax (MT7975P)
* 2 GB DDR4 RAM
* 8 GB eMMC
* 128 MB SPI-NAND flash
* 32 MB SPI-NOR flash
* on-board MT7531 GbE switch
* 2x SFP+ (1 GbE / 2.5 GbE)
* 5x GbE network port
* miniPCIe slot (only USB 2.0 connected)
* uSIM slot (connected to miniPCIe interface)
* M.2 KEY-E PCIe interface (PCIe x2)
* microSD card interface
* 26 PIN GPIO
Hardware details: https://wiki.banana-pi.org/Banana_Pi_BPI-R3
Working:
* all 4 boot methods incl. installation via U-Boot, sysupgrade, ...
* copper LAN and WAN ports
* SFP1 (connected to gmac1, eth1 in Linux)
* WiFi
* LEDs
* Buttons
* PSTORE/ramoops based dual-boot
Not Working (missing driver features):
* SFP2 (connected to MT7531 switch)
Untested:
* M.2/NGFF slot (PCIe x2)
* mPCIe slot (USB 2.0 + SIM)
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Initially this covers MT7986 only, but it will later be expanded to cover other
Filogic branded platforms by MediaTek
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
