Currently, the MT7530 DSA subdriver configures the MT7530 switch to provide
direct access to switch PHYs, meaning, the switch PHYs listen on the MDIO
bus the switch listens on. The PHY muxing feature makes use of this.
This is problematic as the PHY may be attached before the switch is
initialised, in which case, the PHY will fail to be attached.
Since commit 91374ba537bd ("net: dsa: mt7530: support OF-based registration
of switch MDIO bus") on mainline Linux, we can describe the switch PHYs on
the MDIO bus of the switch on the device tree.
When the PHY is described this way, the switch will be initialised first,
then the switch MDIO bus will be registered. Only after these steps, the
PHY will be attached.
Describe the switch PHYs on mt7621.dtsi and remove defining the switch PHY
on the SoC's mdio bus node. When the PHY muxing is in use, the interrupts
for the muxed PHY won't work, therefore delete the "interrupts" property on
the devices where the PHY muxing feature is in use.
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Currently, the pinctrl-0 property on the ethernet node is modified to
exclude the rgmii1 and rgmii2 pin groups to be claimed with rgmii1 and
rgmii2 functions, respectively. Remove the modification of this property as
we need these pin groups to be claimed with the said functions for this
device.
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Hardware:
- SoC: Mediatek MT7621 (MT7621AT)
- Flash: 32 MiB SPI-NOR (Macronix MX25L25635E)
- RAM: 128 MiB
- Ethernet: Built-in, 2 x 1GbE
- 3G/4G Modem: MEIG SLM828 (currently only supported with ModemManager)
- SLIC: Si32185 (unsupported)
- Power: 12V via barrel connector
- Wifi 2.4GHz: Mediatek MT7603BE 802.11b/g/b
- Wifi 5GHz: Mediatek MT7613BE 802.11ac/n/a
- LEDs: 8x (7 controllable)
- Buttons: 2x (RESET, WPS)
Installing OpenWrt:
- sysupgrade image is compatible with vendor firmware.
Recovery:
- Connect to any of the Ethernet ports, configure local IP:
10.10.10.3/24 (or 192.168.10.19/24, depending on OEM)
- Provide firmware file named 'mt7621.img' on TFTP server.
- Hold down both, RESET and WPS, then power on the board.
- Watch network traffic using tcpdump or wireshark in realtime to
observe progress of device requesting firmware. Once download has
completed, release both buttons and wait until firmware comes up.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
