The Meraki MR74 is part of the "Insect" series. This device is
essentially an outdoor variant of the MR33 with identical hardware, but
requiring a config@3 DTS option to be set to allow booting with the
stock u-boot.
The install procedure is replicated from the MR33, with the exception
being that the MR74 sysupgrade image must be used.
Signed-off-by: Matthew Hagan <mnhagan88@gmail.com>
This patch adds support for Linksys WHW01 v1 ("Velop") [FCC ID Q87-03331].
Specification
-------------
SOC: Qualcomm IPQ4018
WiFi 1: Qualcomm QCA4019 IEEE 802.11b/g/n
WiFi 2: Qualcomm QCA4019 IEEE 802.11a/n/ac
Bluetooth: Qualcomm CSR8811 (A12U)
Ethernet: Qualcomm QCA8072 (2-port)
SPI Flash 1: Mactronix MX25L1605D (2MB)
SPI Flash 2: Winbond W25M02GV (256MB)
DRAM: Nanya NT5CC128M16IP-DI (256MB)
LED Controller: NXP PCA963x (I2C)
Buttons: Single reset button (GPIO).
Notes
-----
There does not appear to be a way to trigger TFTP recovery without entering
U-Boot. The device must be opened to access the serial console in order to
first flash OpenWrt onto a device from factory.
The device has automatic recovery backed by a second set of partitions on
the larger of the two SPI flash ICs. Both the primary and secondary must
be flashed to prevent accidental rollback to "factory" after 3 failed boot
attempts.
Serial console
--------------
A serial console is available on the following pins of the populated J2
connector on the device mainboard (115200 8n1).
(<-- Top of PCB / Device)
J2
[o o o o o o]
| | |
| | `-- GND
| `---- TX
`--------- RX
Installation instructions
-------------------------
1. Setup TFTP server with server IP set to 192.168.1.236.
2. Copy compiled `...squashfs-factory.bin` to `nodes-jr.img` in tftp root.
3. Connect to console using pinout detailed in the serial console section.
4. Power on device and press enter when prompted to drop into U-Boot.
5. Flash first partition device via `run flashimg`.
6. Once complete, reset device and allow to power up completely.
7. Once comfortable with device upgrade reboot and drop back into U-Boot.
8. Flash the second partition (recovery) via `run flashimg2`.
Revert to "factory"
-------------------
1. Download latest firmware update from vendor support site.
2. Copy extracted `.img` file to `nodes-jr.img` in tftp root.
3. Connect to console using pinout detailed in the serial console section.
4. Power on device and press enter when prompted to drop into U-Boot.
5. Flash first partition device via `run flashimg`.
6. Once complete, reset device and allow to power up completely.
7. Once comfortable with device upgrade reboot and drop back into U-Boot.
8. Flash the second partition (recovery) via `run flashimg2`.
Link: https://github.com/openwrt/openwrt/pull/3682
Signed-off-by: Peter Adkins <peter@sunkenlab.com>
(calibration from nvmem, updated to 5.10+5.15)
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
