1. Convert wireless calibration data to NVMEM.
2. Enable control green status LED and change default LED behaviors.
The three LEDs of LBA-047-CH are in the same position, and the green
LED will be completely covered by the other two LEDs. So don's use
green LED as WAN indicator to ensure that only one LED is on at a time.
LED Factory OpenWrt
blue internet fail failsafe && upgrade
green internet okay run
red boot boot
3. Reduce the SPI clock to 30 MHz because the ath79 target does not
support 50 MHz SPI operation well. Keep the fast-read support to
ensure the spi-mem feature (b3f9842330) is enabled.
4. Remove unused package "uboot-envtools".
5. Split the factory image into two parts: rootfs and kernel.
This change can reduce the factory image size and allow users to
upgrade the OpenWrt kernel loader uImage (OKLI) independently.
The new installation method: First, rename "squashfs-kernel.bin" to
"openwrt-ar71xx-generic-ap147-16M-kernel.bin" and rename "rootfs.bin"
to "openwrt-ar71xx-generic-ap147-16M-rootfs-squashfs.bin". Then we
can press reset button for about 5 seconds to enter tftp download mode.
Finally, set IP address to 192.168.67.100 and upload the above two
parts via tftp server.
Tested on Letv LBA-047-CH
Signed-off-by: Shiji Yang <yangshiji66@qq.com>
Specifications:
SOC: QCA9531 650 MHz
ROM: 16 MiB Flash (Winbond W25Q128FV)
RAM: 128 MiB DDR2 (Winbond W971GG6SB)
LAN: 10/100M *2
WAN: 10/100M *1
LED: BGR color *1
Mac address:
label C8:0E:77:xx:xx:68 art@0x0
lan C8:0E:77:xx:xx:62 art@0x6
wan C8:0E:77:xx:xx:68 art@0x0 (same as the label)
wlan C8:0E:77:xx:xx:B2 art@0x1002 (load automatically)
TFTP installation:
* Set local IP to 192.168.67.100 and open tftpd64, link lan
port to computer.
Rename "xxxx-factory.bin" to
"openwrt-ar71xx-generic-ap147-16M-rootfs-squashfs.bin".
* Make sure firmware file is in the tftpd's directory, push
reset button and plug in, hold it for 5 seconds, and then
it will download firmware from tftp server automatically.
More information:
* This device boot from flash@0xe80000 so we need a okli
loader to deal with small kernel partition issue. In order
to make full use of the storage space, connect a part of the
previous kernel partition to the firmware.
Stock Modify
0x000000-0x040000(u-boot) 0x000000-0x040000(u-boot)
0x040000-0x050000(u-boot-env) 0x000000-0x050000(u-boot-env)
0x050000-0xe80000(rootfs) 0x050000-0xe80000(firmware part1)
0xe80000-0xff0000(kernel) 0xe80000-0xe90000(okli-loader)
0xe90000-0xff0000(firmware part2)
0xff0000-0x1000000(art) 0xff0000-0x1000000(art)
Signed-off-by: Shiji Yang <yangshiji66@qq.com>
