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3 Commits

Author SHA1 Message Date
Arınç ÜNAL
3ea6125c50 ramips: mt7621-dts: describe switch PHYs and adjust PHY muxing
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>
2024-05-01 13:50:54 +01:00
Arınç ÜNAL
f1c9afd801 ramips: mt7621-dts: mux phy0/4 to gmac1
Mux the MT7530 switch's phy0/4 to the SoC's gmac1 on devices where RGMII2
pins are available. This achieves 2 Gbps total bandwidth to the CPU using
the second RGMII.

The ports called "wan" are muxed where possible. On a minority of devices,
this is not possible. Those cases:

mt7621_ampedwireless_ally-r1900k.dts: lan3
mt7621_ubnt_edgerouter-x.dts: eth0
mt7621_gnubee_gb-pc1.dts: ethblue
mt7621_linksys_re6500.dts: lan1
mt7621_netgear_wac104.dts: lan4
mt7621_tplink_eap235-wall-v1.dts: lan0
mt7621_tplink_eap615-wall-v1.dts: lan0
mt7621_ubnt_usw-flex.dts: lan1

The "wan" port is just what the vendor designated on the board/plastic
chasis of the device. On a technical level, there is no difference between
a lan and wan port on MT7621AT, MT7621DAT and MT7621ST SoCs. Prefer
connecting to WAN via the port described above for these devices to benefit
the feature brought with this patch.

mt7621_d-team_newifi-d2.dts cannot benefit this feature, although it looks
like it should, because the rgmii2 pins are wired to unused components.

Tested on a range of devices documented on the GitHub PR.

Link: https://github.com/openwrt/openwrt/pull/10238
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
2022-08-20 22:56:12 +02:00
Jonathan Sturges
6d23e474ad ramips: add support for Amped Wireless ALLY router and extender
Amped Wireless ALLY is a whole-home WiFi kit, with a router (model
ALLY-R1900K) and an Extender (model ALLY-00X19K).  Both are devices are
11ac and based on MediaTek MT7621AT and MT7615N chips.  The units are
nearly identical, except the Extender lacks a USB port and has a single
Ethernet port.

Specification:
- SoC: MediaTek MT7621AT (2C/4T) @ 880MHz
- RAM: 128MB DDR3 (Nanya NT5CC64M16GP-DI)
- FLASH: 128MB NAND (Winbond W29N01GVSIAA)
- WiFi: 2.4/5 GHz 4T4R
  - 2.4GHz MediaTek MT7615N bgn
  - 5GHz MediaTek MT7615N nac
- Switch: SoC integrated Gigabit Switch
- USB: 1x USB3 (Router only)
- BTN: Reset, WPS
- LED: single RGB
- UART:  through-hole on PCB.
   J1: pin1 (square pad, towards rear)=3.3V, pin2=RX,
   pin3=GND, pin4=TX.  Settings: 57600/8N1.

Note regarding dual system partitions
-------------------------------------

The vendor firmware and boot loader use a dual partition scheme.  The boot
partition is decided by the bootImage U-boot environment variable: 0 for
the 1st partition, 1 for the 2nd.

OpenWrt does not support this scheme and will always use the first OS
partition.  It will set bootImage to 0 during installation, making sure
the first partition is selected by the boot loader.

Also, because we can't be sure which partition is active to begin with, a
2-step flash process is used.  We first flash an initramfs image, then
follow with a regular sysupgrade.

Installation:

Router (ALLY-R1900K)
1) Install the flashable initramfs image via the OEM web-interface.
  (Alternatively, you can use the TFTP recovery method below.)
  You can use WiFi or Ethernet.
  The direct URL is:  http://192.168.3.1/07_06_00_firmware.html
  a. No login is needed, and you'll be in their setup wizard.
  b. You might get a warning about not being connected to the Internet.
  c. Towards the bottom of the page will be a section entitled "Or
  Manually Upgrade Firmware from a File:" where you can manually choose
  and upload a firmware file.
  d: Click "Choose File", select the OpenWRT "initramfs" image and click
  "Upload."
2) The Router will flash the OpenWrt initramfs image and reboot.  After
  booting, LuCI will be available on 192.168.1.1.
3) Log into LuCI as root; there is no password.
4) Optional (but recommended) is to backup the OEM firmware before
  continuing; see process below.
5) Complete the Installation by flashing a full OpenWRT image.  Note:
  you may use the sysupgrade command line tool in lieu of the UI if
  you prefer.
  a.  Choose System -> Backup/Flash Firmware.
  b.  Click "Flash Image..." under "Flash new firmware image"
  c.  Click "Browse..." and then select the sysupgrade file.
  d.  Click Upload to upload the sysupgrade file.
  e.  Important:  uncheck "Keep settings and retain the current
      configuration" for this initial installation.
  f.  Click "Continue" to flash the firmware.
  g.  The device will reboot and OpenWRT is installed.

Extender (ALLY-00X19K)
1) This device requires a TFTP recovery procedure to do an initial load
  of OpenWRT.  Start by configuring a computer as a TFTP client:
  a. Install a TFTP client (server not necessary)
  b. Configure an Ethernet interface to 192.168.1.x/24; don't use .1 or .6
  c. Connect the Ethernet to the sole Ethernet port on the X19K.
2) Put the ALLY Extender in TFTP recovery mode.
  a. Do this by pressing and holding the reset button on the bottom while
  connecting the power.
  b. As soon as the LED lights up green (roughly 2-3 seconds), release
  the button.
3) Start the TFTP transfer of the Initramfs image from your setup machine.
For example, from Linux:
tftp -v -m binary 192.168.1.6 69 -c put initramfs.bin
4) The Extender will flash the OpenWrt initramfs image and reboot.  After
booting, LuCI will be available on 192.168.1.1.
5) Log into LuCI as root; there is no password.
6) Optional (but recommended) is to backup the OEM firmware before
  continuing; see process below.
7) Complete the Installation by flashing a full OpenWRT image.  Note: you
may use the sysupgrade command line tool in lieu of the UI if you prefer.
  a.  Choose System -> Backup/Flash Firmware.
  b.  Click "Flash Image..." under "Flash new firmware image"
  c.  Click "Browse..." and then select the sysupgrade file.
  d.  Click Upload to upload the sysupgrade file.
  e.  Important:  uncheck "Keep settings and retain the current
      configuration" for this initial installation.
  f.  Click "Continue" to flash the firmware.
  g.  The device will reboot and OpenWRT is installed.

Backup the OEM Firmware:
-----------------------

There isn't any downloadable firmware for the ALLY devices on the Amped
Wireless web site. Reverting back to the OEM firmware is not possible
unless we have a backup of the original OEM firmware.

The OEM firmware may be stored on either /dev/mtd3 ("firmware") or
/dev/mtd6 ("oem").  We can't be sure which was overwritten with the
initramfs image, so backup both partitions to be safe.

  1) Once logged into LuCI, navigate to System -> Backup/Flash Firmware.
  2) Under "Save mtdblock contents," first select "firmware" and click
  "Save mtdblock" to download the image.
  3) Repeat the process, but select "oem" from the pull-down menu.

Revert to the OEM Firmware:
--------------------------
* U-boot TFTP:
  Follow the TFTP recovery steps for the Extender, and use the
  backup image.

* OpenWrt "Flash Firmware" interface:
  Upload the backup image and select "Force update"
  before continuing.

Signed-off-by: Jonathan Sturges <jsturges@redhat.com>
2021-06-05 23:39:14 +02:00