The following devices have a Winbond W25Q256FV flash chip,
which does not have the RESET pin enabled by default,
and otherwise would require setting a bit in a status register.
Before moving to Linux 5.4, we had the patch:
0053-mtd-spi-nor-add-w25q256-3b-mode-switch.patch
which kept specific flash chips with explicit 3-byte and 4-byte address modes
to stay in 3-byte address mode while idle (after an erase or write)
by using a custom flag SPI_NOR_4B_READ_OP that was part of the patch.
this was obsoleted by the patch:
481-mtd-spi-nor-rework-broken-flash-reset-support.patch
which uses the newer upstream flag SNOR_F_BROKEN_RESET
for devices with a flash chip that cannot be hardware reset with RESET pin
and therefore must be left in 3-byte address mode when idle.
The new patch requires that the DTS of affected devices
have the property "broken-flash-reset", which was not yet added for most of them.
This commit adds the property for remaining affected devices in ramips target,
specifically because of the flash chip model.
However, it is possible that there are other devices
where the flash chip uses an explicit 4-byte address mode
and the RESET pin is not connected to the SOC on the board,
and those DTS would also need this property.
Ref: 22d982ea00 ("ramips: add support for switching between 3-byte and 4-byte addressing")
Ref: dfa521f129 ("generic: spi-nor: rework broken-flash-reset")
Signed-off-by: Michael Pratt <mcpratt@pm.me>
The "/dts-v1/;" identifier is supposed to be present once at the
top of a device tree file after the includes have been processed.
In ramips, we therefore requested to have in the DTS files so far,
and omit it in the DTSI files. However, essentially the syntax of
the parent mtxxxx/rtxxxx DTSI files already determines the DTS
version, so putting it into the DTS files is just a useless repetition.
Consequently, this patch puts the dts-v1 statement into the top-level
SoC-based DTSI files, and removes all other occurences.
Since the dts-v1 statement needs to be before any other definitions,
this also moves the includes accordingly where necessary.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
This commit adds support for the Jotale JS76x8 series development boards.
These devices have the following specifications:
- SOC: MT7628AN/NN, MT7688AN, MT7628DAN
- RAM of MT7628AN/NN and MT7688AN: 64/128/256 MB (DDR2)
- RAM of MT7628DAN: 64 MB (DDR2)
- FLASH:8/16/32 MB (SPI NOR)
- Ethernet:3x 10/100 Mbps ethernet ports (MT76x8 built-in switch)
- WIFI:1x 2T2R 2.4 GHz Wi-Fi
- LEDs:1x system status green LED, 1x wifi green LED,
3x ethernet green LED
- Buttons:1x reset button
- 1x microSD slot
- 4x USB 2.0 port
- 1x mini-usb debug UART
- 1x DC jack for main power (DC 5V)
- 1x TTL/RS232 UART
- 1x TTL/RS485 UART
- 13x GPIO header
- 1x audio codec(wm8960)
Installation via OpenWrt:
The original firmware is OpenWrt, so both LuCI and sysupgrade can be used.
Installation via U-boot web:
1. Power on board with reset button pressed, release it
after wifi led start blinking.
2. Setup static IP 192.168.1.123/4 on your PC.
3. Go to 192.168.1.8 in browser and upload "sysupgrade" image.
Installation via U-boot tftp:
1. Connect to serial console at the mini usb, which has been connected to UART0
on board (115200 8N1)
2. Setup static IP 192.168.1.123/4 on your PC.
3. Place openwrt-firmware.bin on your PC tftp server (192.168.1.123).
3. Connect one of LAN ports on board to your PC.
4. Start terminal software (e.g. screen /dev/ttyUSB0 115200) on PC.
5. Apply power to board.
6. Interrupt U-boot with keypress of "2".
7. At u-boot prompts:
Warning!! Erase Linux in Flash then burn new one. Are you sure?(Y/N) Y
Input device IP (192.168.1.8) ==:192.168.1.8
Input server IP (192.168.1.123) ==:192.168.1.123
Input Linux Kernel filename (root_uImage) ==:openwrt-firmware.bin
8. board will download file from tftp server, write it to flash and reboot.
Signed-off-by: Robinson Wu <wurobinson@qq.com>
[add license to DTS files, fix state_default and reduce to the mimimum,
move phy0tpt trigger to DTS, drop ucidef_set_led_timer, fix network ports]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
