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openwrt/target/linux/ramips/dts/mt7621_buffalo_wsr-2533dhpls.dts
INAGAKI Hiroshi ea8d140b25 ramips: add support for Buffalo WSR-2533DHPLS
Buffalo WSR-2533DHPLS is a 2.4/5 GHz band 11ac router, based on MediaTek
MT7621A.

Very similar to Buffalo WSR-2533DHPL, but with NAND, different GPIO
and TRX partitions.

Specification:

- SoC           : MediaTek MT7621AT
- RAM           : DDR3 256 MiB (Samsung K4B2G1646F-BYMA)
- Flash         : RAW-NAND 128 MiB
                  (Winbond W29N01HV or KIOXIA TC58BVG0S3HTAI0)
- WLAN          : 2.4/5 GHz (2x MediaTek MT7615N)
- Ethernet      : 10/100/1000 Mbps
  - Switch      : MediaTek MT7530 (SoC) 4 ports
- LED/keys      : 8x/6x (2x buttons, 1x slide-switch)
- UART          : through-hole on PCB (J4)
  - arrangement : 3.3V, GND, TX, RX from triangle-mark
  - settings    : 115200n8
- Power         : 12VDC 1.5A

Flash instruction using factory.bin image:

1. boot WSR-2533DHPLS normally with "Router" mode
2. access to the WebI ("http://192.168.11.1/") on the device and open
   firmware update page
   ("管理" -> "ファームウェア更新")
3. select the OpenWrt factory.bin image and click update ("更新実行")
   button
   Attention: do not use "factory-uboot.bin" image
4. Wait ~120 seconds to complete flashing

Flash instruction using initramfs image:

1. prepare the TFTP server with the initramfs image renamed to
   "linux.trx-recovery" and IP address "192.168.11.2"
2. press the "AOSS" button while powering on the WSR-2533DHPLS
3. after 10 seconds, release the "AOSS" button, WSR-2533DHPLS downloads
   the initramfs image and boot with it automatically
4. on the initramfs image, download the factory-uboot.bin image to the
   device and perform sysupgrade with it and "-F" option
5. wait ~120 seconds to complete flashing

Notes:

- The embedded addresses in eeprom data in Factory partition have
  Buffalo's OUI, but they don't match with the actual addresses
  assigned to wlan devices. So fixup addresses by the user-space
  script.

  root@localhost:/# hexdump -C /dev/mtdblock3 | grep "^0000[08]000\s"
  00000000  15 76 a0 00 88 57 ee bc  01 a8 15 76 c3 14 00 80  |.v...W.....v....|
  00008000  15 76 a0 00 88 57 ee bc  01 f8 15 76 c3 14 00 80  |.v...W.....v....|

  See "MAC addresses" below for actual addresses.

- There are 2x factory*.bin images for different purposes.

  - factory.bin      : for flashing on OEM WebUI
  - factory-uboot.bin: for flashing on OEM bootloader or initramfs image

  factory-uboot.bin is useful for recoverying the device, or refreshing
  when the kernel partition is expanded in the future. sysupgrade on
  this device accepts factory-uboot.bin with option "-F", but on that
  situation, user configurations won't be kept, so it's not for normal
  use.

MAC addresses:

LAN    : 90:96:F3:xx:xx:30 (board_data, "mac" (text))
WAN    : 90:96:F3:xx:xx:30 (board_data, "mac" (text))
2.4 GHz: 90:96:F3:xx:xx:31
5 GHz  : 90:96:F3:xx:xx:38

[original work]
Signed-off-by: Audun-Marius Gangstø <audun@gangsto.org>
[convert to ubi, fix/improve DT, add sysupgrade support]
Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
2024-06-05 21:14:16 +02:00

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// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
#include "mt7621_buffalo_wsr-2533dhplx.dtsi"
/ {
compatible = "buffalo,wsr-2533dhpls", "mediatek,mt7621-soc";
model = "Buffalo WSR-2533DHPLS";
chosen {
bootargs = "console=ttyS0,115200n8 ubi.block=0,rootfs root=/dev/ubiblock0_0";
};
};
&nand {
status = "okay";
mediatek,nmbm;
/*
* - u-boot - (kernel (6MiB, in "firmware"))
* - Kernel2 - WTB
*/
mediatek,bmt-remap-range = <0x0 0x780000>,
<0x1980000 0x5b00000>;
};
&partitions {
partition@100000 {
label = "factory";
reg = <0x100000 0x80000>;
read-only;
nvmem-layout {
compatible = "fixed-layout";
#address-cells = <1>;
#size-cells = <1>;
eeprom_factory_0: eeprom@0 {
reg = <0x0 0x4da8>;
};
eeprom_factory_8000: eeprom@8000 {
reg = <0x8000 0x4da8>;
};
};
};
partition@180000 {
compatible = "brcm,trx";
brcm,trx-magic = <0x534c4844>;
label = "firmware";
reg = <0x180000 0x1800000>;
};
partition@1980000 {
label = "Kernel2";
reg = <0x1980000 0x1800000>;
};
partition@3180000 {
label = "glbcfg";
reg = <0x3180000 0x200000>;
read-only;
};
partition@3380000 {
label = "board_data";
reg = <0x3380000 0x200000>;
read-only;
};
partition@3580000 {
label = "debug_log";
reg = <0x3580000 0x900000>;
read-only;
};
partition@3e80000 {
label = "WTB";
reg = <0x3e80000 0x3600000>;
read-only;
};
};