1 Commits

Author	SHA1	Message	Date
Tomasz Maciej Nowak	e24635710c	ipq40xx: add support for Luma Home WRTQ-329ACN ... Luma Home WRTQ-329ACN, also known as Luma WiFi System, is a dual-band wireless access point. Specification SoC: Qualcomm Atheros IPQ4018 RAM: 256 MB DDR3 Flash: 2 MB SPI NOR 128 MB SPI NAND WIFI: 2.4 GHz 2T2R integrated 5 GHz 2T2R integrated Ethernet: 2x 10/100/1000 Mbps QCA8075 USB: 1x 2.0 Bluetooth: 1x 4.0 CSR8510 A10, connected to USB bus LEDS: 16x multicolor LEDs ring, controlled by MSP430G2403 MCU Buttons: 1x GPIO controlled EEPROM: 16 Kbit, compatible with AT24C16 UART: row of 4 holes marked on PCB as J19, starting count from the side of J19 marking on PCB 1. GND, 2. RX, 3. TX, 4. 3.3V baud: 115200, parity: none, flow control: none The device supports OTA or USB flash drive updates, unfotunately they are signed. Until the signing key is known, the UART access is mandatory for installation. The difficult part is disassembling the casing, there are a lot of latches holding it together. Teardown Prepare three thin, but sturdy, prying tools. Place the device with back of it facing upwards. Start with the wall having a small notch. Insert first tool, until You'll feel resistance and keep it there. Repeat the procedure for neighbouring walls. With applying a pressure, one edge of the back cover should pop up. Now carefully slide one of the tools to free the rest of the latches. There's no need to solder pins to the UART holes, You can use hook clips, but wiring them outside the casing, will ease debuging and recovery if problems occur. Installation 1. Prepare TFTP server with OpenWrt initramfs image. 2. Connect to UART port (don't connect the voltage pin). 3. Connect to LAN port. 4. Power on the device, carefully observe the console output and when asked quickly enter the failsafe mode. 5. Invoke 'mount_root'. 6. After the overlayfs is mounted run: fw_setenv bootdelay 3 This will allow to access U-Boot shell. 7. Reboot the device and when prompted to stop autoboot, hit any key. 8. Adjust "ipaddr" and "serverip" addresses in U-Boot environment, use 'setenv' to do that, then run following commands: tftpboot 0x84000000 <openwrt_initramfs_image_name> bootm 0x84000000 and wait till OpenWrt boots. 9. In OpenWrt command line run following commands: fw_setenv openwrt "setenv mtdids nand1=spi_nand; setenv mtdparts mtdparts=spi_nand:-(ubi); ubi part ubi; ubi read 0x84000000 kernel; bootm 0x84000000" fw_setenv bootcmd "run openwrt" 10. Transfer OpenWrt sysupgrade image to /tmp directory and flash it with: ubirmvol /dev/ubi0 -N ubi_rootfs sysupgrade -v -n /tmp/<openwrt_sysupgrade_image_name> 11. After flashing, the access point will reboot to OpenWrt, then it's ready for configuration. Reverting to OEM firmware 1. Execute installation guide steps: 1, 2, 3, 7, 8. 2. In OpenWrt command line run following commands: ubirmvol /dev/ubi0 -N rootfs_data ubirmvol /dev/ubi0 -N rootfs ubirmvol /dev/ubi0 -N kernel ubirename /dev/ubi0 kernel1 kernel ubi_rootfs1 ubi_rootfs ubimkvol /dev/ubi0 -S 34 -N kernel1 ubimkvol /dev/ubi0 -S 320 -N ubi_rootfs1 ubimkvol /dev/ubi0 -S 264 -N rootfs_data fw_setenv bootcmd bootipq 3. Reboot. Known issues The LEDs ring doesn't have any dedicated driver or application to control it, the only available option atm is to manipulate it with 'i2cset' command. The default action after applying power to device is spinning blue light. This light will stay active at all time. To disable it install 'i2c-tools' with opkg and run: i2cset -y 2 0x48 3 1 0 0 i The light will stay off until next cold boot. Additional information After completing 5. step from installation guide, one can disable asking for root password on OEM firmware by running: sed -e 's/root❌/root::/' -i /etc/passwd This is useful for investigating the OEM firmware. One can look at the communication between the stock firmware and the vendor's cloud servers or as a way of making a backup of both flash chips. The root password seems to be constant across all sold devices. This is output of 'led_ctl' from OEM firmware to illustrate possibilities of LEDs ring: Usage: led_ctl [status | upgrade | force_upgrade | version] led_ctl solid COLOR <brightness> led_ctl single COLOR INDEX <brightness 0 - 15> led_ctl spinning COLOR <period 1 - 16 (lower = faster)> led_ctl fill COLOR <period 1 - 16 (lower = faster)> ( default is 5 ) led_ctl flashing COLOR <on dur 1 - 128> <off dur 1 - 128> (default is 34) ( default is 34 ) led_ctl pulsing COLOR COLOR: red, green, blue, yellow, purple, cyan, white Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl> [squash "ipq-wifi: add BDFs for Luma Home WRTQ-329ACN" into commit, changed ubi volumes for easier integration, slightly reworded commit message, changed ubi volume layout to use standard names all around] Signed-off-by: Christian Lamparter <chunkeey@gmail.com>	2020-09-25 19:30:19 +02:00