ramips: add support for D-Link DIR-878 R1

Specifications:
- SoC: MediaTek MT7621AT
- RAM: 128 MB (DDR3)
- Flash: 16 MB (SPI NOR)
- WiFi: MT7615N (2.4GHz) and MT7615N (5Ghz)
- Switch: 1 WAN, 4 LAN (Gigabit)
- Buttons: Reset, WiFi Toggle, WPS
- LEDs: Power, Internet, WiFi 2.4G WiFi 5G

The R1 revision is identical to the A1 revision except
- No Config2 Parition, therefore
- factory partition resized to 64k from 128K
- Firmware partition offset is 0x50000 not 0x60000
- Firmware partitions size increased by 64K
- Firmware partition type is "denx,uimage", not "sge,uimage"
- Padding of image creation "uimage-padhdr 96" removed

Installation:
Update to the last D-Link firmware through web-ui before OpenWRT
installation then follow the instructions to patch your device using
D-Link FailsafeUI.

- D-Link FailsafeUI:
Power down the router, press and hold the reset button, then
re-plug it. Keep the reset button pressed until the internet LED stops
flashing, then jack into any lan port and manually assign a static IP
address in 192.168.0.0/24 other than 192.168.0.1 (e.g. 192.168.0.2)
and go to http://192.168.0.1
Flash with the factory image.

Signed-off-by: Igor Nazarov <tigron.dev@gmail.com>

diff --git a/target/linux/ramips/dts/mt7621_dlink_dir-878-r1.dts b/target/linux/ramips/dts/mt7621_dlink_dir-878-r1.dts
new file mode 100644 (file)
index 0000000..b6453bd
--- /dev/null
+++ b/target/linux/ramips/dts/mt7621_dlink_dir-878-r1.dts
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "mt7621_dlink_dir-8xx.dtsi"
+#include "mt7621_dlink_flash-16m-r1.dtsi"
+
+/ {
+       compatible = "dlink,dir-878-r1", "mediatek,mt7621-soc";
+       model = "D-Link DIR-878 R1";
+
+       aliases {
+               label-mac-device = &gmac0;
+       };
+};
+
+&gmac0 {
+       nvmem-cells = <&macaddr_factory_e000>;
+       nvmem-cell-names = "mac-address";
+};
+
+&wan {
+       nvmem-cells = <&macaddr_factory_e006>;
+       nvmem-cell-names = "mac-address";
+};
+
+&factory {
+       compatible = "nvmem-cells";
+       #address-cells = <1>;
+       #size-cells = <1>;
+
+       macaddr_factory_e000: macaddr@e000 {
+               reg = <0xe000 0x6>;
+       };
+
+       macaddr_factory_e006: macaddr@e006 {
+               reg = <0xe006 0x6>;
+       };
+};

diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk
index 8bef3a1bfb187c0784bd27e6e0f7f54aeb1c9914..cd28e36917a88871d917d4721a87a65289e06201 100644 (file)
--- a/target/linux/ramips/image/mt7621.mk
+++ b/target/linux/ramips/image/mt7621.mk
@@ -409,6 +409,17 @@ define Device/dlink_dir-878-a1
 endef
 TARGET_DEVICES += dlink_dir-878-a1
 
+define Device/dlink_dir-878-r1
+  $(Device/dlink_dir-8xx-r1)
+  DEVICE_MODEL := DIR-878
+  DEVICE_VARIANT := R1
+  IMAGES += factory.bin
+  IMAGE/factory.bin := append-kernel | append-rootfs | check-size | \
+       sign-dlink-ru 57c5375741c30ca9ebcb36713db4ba51 \
+       ab0dff19af8842cdb70a86b4b68d23f7
+endef
+TARGET_DEVICES += dlink_dir-878-r1
+
 define Device/dlink_dir-882-a1
   $(Device/dlink_dir-8xx-a1)
   DEVICE_MODEL := DIR-882