ramips: add support for ELECOM WMC-C2533GST

ELECOM WMC-C2533GST is a 2.4/5 GHz band 11ac (Wi-Fi 5) mesh
router, based on MT7621A.

It shares the same basic hardware and 32 MiB flash layout as
WRC-2533GST2, but the factory image uses the WMC-2HC hardware name.

Specification:

- SoC           : MediaTek MT7621A
- RAM           : DDR3 256 MiB
- Flash         : SPI-NOR 32 MiB (Macronix MX25L25635E)
- WLAN          : 2.4/5 GHz 4T4R (2x MediaTek MT7615)
- Ethernet      : 10/100/1000 Mbps x5
  - Switch      : MediaTek MT7530 (SoC)
- LED/keys      : 4x/6x (2x buttons, 1x slide-switch)
- UART          : through-hole on PCB
  - J4: 3.3V, GND, TX, RX from ethernet port side
  - 57600n8
- Power         : 12VDC, 1.5A

Flash instruction using factory image:

1. Boot WMC-C2533GST normally with "Router" mode
2. Access to "http://192.168.2.1/" and open firmware update page
   ("ファームウェア更新")
3. Select the OpenWrt factory image and click apply ("適用") button
4. Wait ~150 seconds to complete flashing

MAC addresses:

LAN     : 04:AB:18:xx:xx:BF (Factory, 0xFFF4 (hex))
WAN     : 04:AB:18:xx:xx:C0 (Factory, 0xFFFA (hex))
2.4GHz  : 04:AB:18:xx:xx:C1 (Factory, 0x4    (hex))
5GHz    : 04:AB:18:xx:xx:C2 (Factory, 0x8004 (hex))

Signed-off-by: Taiga Ogawa <zectaiga@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/23568
Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>

diff --git a/target/linux/ramips/dts/mt7621_elecom_wmc-c2533gst.dts b/target/linux/ramips/dts/mt7621_elecom_wmc-c2533gst.dts
new file mode 100644 (file)
index 0000000..a86e4f3
--- /dev/null
+++ b/target/linux/ramips/dts/mt7621_elecom_wmc-c2533gst.dts
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "mt7621_elecom_wrc-gs-2pci.dtsi"
+
+/ {
+       compatible = "elecom,wmc-c2533gst", "mediatek,mt7621-soc";
+       model = "ELECOM WMC-C2533GST";
+};
+
+&partitions {
+       partition@50000 {
+               compatible = "denx,uimage";
+               label = "firmware";
+               reg = <0x50000 0x1800000>;
+       };
+
+       partition@1850000 {
+               label = "tm_pattern";
+               reg = <0x1850000 0x400000>;
+               read-only;
+       };
+
+       partition@1c50000 {
+               label = "tm_key";
+               reg = <0x1c50000 0x100000>;
+               read-only;
+       };
+
+       partition@1d50000 {
+               label = "nvram";
+               reg = <0x1d50000 0xb0000>;
+               read-only;
+       };
+
+       partition@1e00000 {
+               label = "user_data";
+               reg = <0x1e00000 0x200000>;
+               read-only;
+       };
+};
+
+&gmac0 {
+       nvmem-cells = <&macaddr_factory_fff4>;
+       nvmem-cell-names = "mac-address";
+};
+
+&gmac1 {
+       nvmem-cells = <&macaddr_factory_fffa>;
+       nvmem-cell-names = "mac-address";
+};
+
+&factory {
+       nvmem-layout {
+               compatible = "fixed-layout";
+               #address-cells = <1>;
+               #size-cells = <1>;
+
+               macaddr_factory_fff4: macaddr@fff4 {
+                       reg = <0xfff4 0x6>;
+               };
+
+               macaddr_factory_fffa: macaddr@fffa {
+                       reg = <0xfffa 0x6>;
+               };
+       };
+};

diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk
index ce68c97cd7699d87956867207bf7d2604a2786a6..347ab0eab3dc8123e041ebf06736fdf4ad750f26 100644 (file)
--- a/target/linux/ramips/image/mt7621.mk
+++ b/target/linux/ramips/image/mt7621.mk
@@ -1279,6 +1279,14 @@ define Device/elecom_wrc-gs
   DEVICE_PACKAGES := kmod-mt7615-firmware -uboot-envtools
 endef
 
+define Device/elecom_wmc-c2533gst
+  $(Device/elecom_wrc-gs)
+  IMAGE_SIZE := 24576k
+  DEVICE_MODEL := WMC-C2533GST
+  ELECOM_HWNAME := WMC-2HC
+endef
+TARGET_DEVICES += elecom_wmc-c2533gst
+
 define Device/elecom_wmc-m1267gst2
   $(Device/elecom_wrc-gs)
   IMAGE_SIZE := 24576k