[LEDE-DEV] [PATCH] ramips: add support for Loewe WMDR-143N

Oliver Fleischmann ogf at bnv-bamberg.de
Mon Jul 17 11:20:20 PDT 2017


The WMDR-143N is a small module originally used as a Wifi client
in some Loewe smart TV sets. It is sold cheaply at german surplus
shops. The module contains a RT3662 SOC.

Specifications:

- 500 MHz CPU Clock
- 1x 10/100Mbps Ethernet (pin header)
- 32 MB of RAM
- 8 MB of FLASH
- 2T3R 2.4/5 GHz (SOC internal)
- 3 Antennas on PCB
- UART pads on PCB (J3: 1 = +5V, 2 = RX, 3 = TX, 4 = GND), TX and
  RX are 3,3V only! The square hole is pin 1
- Power supply pads on PCB (J6: 1 and 2 = +5V, 3 and 4 = GND)
  The square hole is pin 1

The original firmware has two identical kernel/rootfs images and
two "Factory" calibration data blocks in flash. The LEDE image
leaves only the first "Factory" block in place and uses both
"Kernel" blocks and the redundant "Factory" block together to gain
enough space for the jffs2 partition.

Flash instructions:

You need UART and Ethernet connections to flash the board. Use
the LEDE "factory" image with tftp.

Apply power to the board and in the first 5 seconds, hit 2 to
select TFTP upload. The bootloader asks for board- and server IP
addresses and filename.

Alternate method: With the vendor firmware running, assign an IP
address to the ethernet port, tftp the firmware image to
/tmp and write to mtd4 ("KernelA").

Signed-off-by: Oliver Fleischmann <ogf at bnv-bamberg.de>
---
 .../linux/ramips/base-files/etc/board.d/02_network |  4 +-
 target/linux/ramips/base-files/lib/ramips.sh       |  3 +
 .../ramips/base-files/lib/upgrade/platform.sh      |  1 +
 target/linux/ramips/dts/WMDR-143N.dts              | 82 ++++++++++++++++++++++
 target/linux/ramips/image/rt3883.mk                | 14 ++++
 5 files changed, 103 insertions(+), 1 deletion(-)
 create mode 100644 target/linux/ramips/dts/WMDR-143N.dts

diff --git a/target/linux/ramips/base-files/etc/board.d/02_network b/target/linux/ramips/base-files/etc/board.d/02_network
index 22b231bf96..8463edfc01 100755
--- a/target/linux/ramips/base-files/etc/board.d/02_network
+++ b/target/linux/ramips/base-files/etc/board.d/02_network
@@ -223,6 +223,7 @@ ramips_setup_interfaces()
 	na930|\
 	pbr-d1|\
 	wli-tx4-ag300n|\
+	wmdr-143n|\
 	wmr-300|\
 	wn3000rpv3|\
 	wrh-300cr)
@@ -334,7 +335,8 @@ ramips_setup_macs()
 
 	case $board in
 	a5-v11|\
-	ht-tm02)
+	ht-tm02|\
+	wmdr-143n)
 		lan_mac=$(cat /sys/class/net/eth0/address)
 		;;
 	all0239-3g|\
diff --git a/target/linux/ramips/base-files/lib/ramips.sh b/target/linux/ramips/base-files/lib/ramips.sh
index 3eb66dc646..5388263530 100755
--- a/target/linux/ramips/base-files/lib/ramips.sh
+++ b/target/linux/ramips/base-files/lib/ramips.sh
@@ -589,6 +589,9 @@ ramips_board_detect() {
 	*"WLR-6000")
 		name="wlr-6000"
 		;;
+	*"WMDR-143N")
+		name="wmdr-143n"
+		;;
 	*"WMR-300")
 		name="wmr-300"
 		;;
diff --git a/target/linux/ramips/base-files/lib/upgrade/platform.sh b/target/linux/ramips/base-files/lib/upgrade/platform.sh
index 9b5da57146..8420423932 100755
--- a/target/linux/ramips/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ramips/base-files/lib/upgrade/platform.sh
@@ -171,6 +171,7 @@ platform_check_image() {
 	wl-wn575a3|\
 	wli-tx4-ag300n|\
 	wlr-6000|\
+	wmdr-143n|\
 	wmr-300|\
 	wn3000rpv3|\
 	wnce2001|\
diff --git a/target/linux/ramips/dts/WMDR-143N.dts b/target/linux/ramips/dts/WMDR-143N.dts
new file mode 100644
index 0000000000..66db0c8ea8
--- /dev/null
+++ b/target/linux/ramips/dts/WMDR-143N.dts
@@ -0,0 +1,82 @@
+/dts-v1/;
+
+#include "rt3883.dtsi"
+
+#include <dt-bindings/input/input.h>
+
+/ {
+	compatible = "WMDR-143N", "ralink,rt3883-soc";
+	model = "Loewe WMDR-143N";
+};
+
+&spi0 {
+        status = "okay";
+
+        m25p80 at 0 {
+                #address-cells = <1>;
+                #size-cells = <1>;
+                compatible = "jedec,spi-nor";
+                reg = <0>;
+                spi-max-frequency = <25000000>;
+
+                partition at 0 {
+                        label = "u-boot";
+                        reg = <0x0 0x30000>;
+                        read-only;
+                };
+
+                partition at 30000 {
+                        label = "u-boot-env";
+                        reg = <0x30000 0x00010000>;
+                        read-only;
+                };
+
+                factory: partition at 40000 {
+                        label = "factory";
+                        reg = <0x40000 0x10000>;
+                        read-only;
+                };
+
+                partition at 50000 {
+                        label = "firmware";
+                        reg = <0x50000 0x7b0000>;
+                };
+        };
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+&pinctrl {
+	state_default: pinctrl0 {
+		gpio {
+			ralink,group = "i2c", "jtag", "uartf";
+			ralink,function = "gpio";
+		};
+	};
+};
+
+&ethernet {
+	mtd-mac-address = <&factory 0x4>;
+
+	port at 0 {
+		phy-handle = <&phy0>;
+		phy-mode = "mii";
+	};
+	mdio-bus {
+		status = "okay";
+
+		phy0: ethernet-phy at 0 {
+			reg = <0>;
+			phy-mode = "mii";
+		};
+	};
+};
+
+&wmac {
+	status = "okay";
+	ralink,mtd-eeprom = <&factory 0>;
+	mtd-mac-address = <&factory 0x4>;
+	mtd-mac-address-increment = <1>;
+};
diff --git a/target/linux/ramips/image/rt3883.mk b/target/linux/ramips/image/rt3883.mk
index 2cd60f3858..c21a2cad1b 100644
--- a/target/linux/ramips/image/rt3883.mk
+++ b/target/linux/ramips/image/rt3883.mk
@@ -114,3 +114,17 @@ define Device/wlr-6000
   DEVICE_PACKAGES := kmod-usb-core kmod-usb-ohci kmod-usb2 swconfig
 endef
 TARGET_DEVICES += wlr-6000
+
+
+define Device/wmdr-143n
+  DTS := WMDR-143N
+  BLOCKSIZE := 64k
+  IMAGES += factory.bin
+  IMAGE/sysupgrade.bin := \
+	append-kernel | append-rootfs | pad-rootfs | append-metadata | check-size $$$$(IMAGE_SIZE)
+  IMAGE/factory.bin := \
+	append-kernel | append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE)
+  DEVICE_TITLE := Loewe WMDR-143N
+  DEVICE_PACKAGES := 
+endef
+TARGET_DEVICES += wmdr-143n
-- 
2.13.0




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