ramips: add support for DLINK DWR-921-C1

The DWR-921-C1 Wireless Routers with LTE embedded modem is based on the
MT7620N SoC.

Specification:

  * MediaTek MT7620N (580 Mhz)
  * 64 MB of RAM
  * 16 MB of FLASH
  * 802.11bgn radio
  * 5x 10/100 Mbps Ethernet (1 WAN and 4 LAN)
  * 2x external, detachable (LTE) antennas
  * UART header on PCB (57600 8n1)
  * 6x LED (GPIO-controlled)
  * 1x bi-color Signal Strength LED (GPIO-controlled)
  * 2x button
  * JBOOT bootloader

The status led has been assigned to the dwr-921-c1:green:sigstrength (lte
signal strength) led. At the end of the boot it is switched off and is
available for lte operation. Work correctly also during sysupgrade
operation.

Installation:
Apply factory image via d-link http web-gui.

How to revert to OEM firmware:
1.) Push the reset button and turn on the power. Wait until LED start
    blinking (~10sec.)
2.) Upload original factory image via JBOOT http (IP: 192.168.123.254)
3.) If http doesn't work, it can be done with curl command:
    curl -F FN=@XXXXX.bin http://192.168.123.254/upg
    where XXXXX.bin is name of firmware file.

Signed-off-by: Giuseppe Lippolis <giu.lippolis@gmail.com>

diff --git a/target/linux/ramips/base-files/etc/board.d/01_leds b/target/linux/ramips/base-files/etc/board.d/01_leds
index 4b8242cb9fe3a16e970653006d0a6bc7dbc042b4..a34abbb69f325f2e4d727bc9ecc28652b6ce531e 100755 (executable)
--- a/target/linux/ramips/base-files/etc/board.d/01_leds
+++ b/target/linux/ramips/base-files/etc/board.d/01_leds
@@ -162,6 +162,11 @@ dlink,dwr-116-a1|\
 mzk-ex300np)
        set_wifi_led "$boardname:green:wifi"
        ;;
+dlink,dwr-921-c1)
+       set_wifi_led "$boardname:green:wifi"
+       ucidef_set_led_switch "lan" "lan" "$boardname:green:lan" "switch0" "0x0f"
+       ucidef_set_led_default "sigstrength" "Signal Strength" "$boardname:green:sigstrength" "0"
+       ;;
 dir-810l|\
 mzk-750dhp|\
 mzk-dp150n|\

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 4441b2293e2b0a96a852dd5f0a7031be494b9dbb..8f3a95d3e3dbd5490191635a197632a71a6e2798 100755 (executable)
--- a/target/linux/ramips/base-files/etc/board.d/02_network
+++ b/target/linux/ramips/base-files/etc/board.d/02_network
@@ -81,6 +81,7 @@ ramips_setup_interfaces()
        dir-610-a1|\
        dir-615-h1|\
        dlink,dwr-116-a1|\
+       dlink,dwr-921-c1|\
        ew1200|\
        firewrt|\
        hc5661a|\
@@ -434,7 +435,8 @@ ramips_setup_macs()
                lan_mac=$(mtd_get_mac_ascii factory lanmac)
                wan_mac=$(mtd_get_mac_ascii factory wanmac)
                ;;
-       dlink,dwr-116-a1)
+       dlink,dwr-116-a1|\
+       dlink,dwr-921-c1)
                wan_mac=$(jboot_config_read -m -i $(find_mtd_part "config") -o 0xE000)
                lan_mac=$(macaddr_add "$wan_mac" 1)
                ;;

diff --git a/target/linux/ramips/base-files/etc/diag.sh b/target/linux/ramips/base-files/etc/diag.sh
index d9f131b2a819a397feb072c6c550d06111442ea2..7b90f6ba1273bdea77dfbefdc95d00667690c25e 100644 (file)
--- a/target/linux/ramips/base-files/etc/diag.sh
+++ b/target/linux/ramips/base-files/etc/diag.sh
@@ -108,6 +108,9 @@ get_status_led() {
        zbt-wg2626)
                status_led="$boardname:green:status"
                ;;
+       dlink,dwr-921-c1)
+               status_led="$boardname:green:sigstrength"
+               ;;
        asl26555-8M|\
        asl26555-16M)
                status_led="asl26555:green:power"

diff --git a/target/linux/ramips/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom b/target/linux/ramips/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom
index 67c05c9a461225dd847c6447c8123f088da01e30..c0c6a3ecad4666357d2d96cff722870a62a10c89 100644 (file)
--- a/target/linux/ramips/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom
+++ b/target/linux/ramips/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom
@@ -54,7 +54,8 @@ board=$(board_name)
 case "$FIRMWARE" in
 "soc_wmac.eeprom")
        case $board in
-       dlink,dwr-116-a1)
+       dlink,dwr-116-a1|\
+       dlink,dwr-921-c1)
                wan_mac=$(jboot_config_read -m -i $(find_mtd_part "config") -o 0xE000)
                wifi_mac=$(macaddr_add "$wan_mac" 1)
                jboot_eeprom_extract "config" 0xE000

diff --git a/target/linux/ramips/base-files/lib/upgrade/platform.sh b/target/linux/ramips/base-files/lib/upgrade/platform.sh
index b052cf8625610b6dfbdd7341ee156101abc2b576..44be484374f56a2e0fe729a49f9fc111cc6efc2b 100755 (executable)
--- a/target/linux/ramips/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ramips/base-files/lib/upgrade/platform.sh
@@ -271,7 +271,8 @@ platform_check_image() {
                }
                return 0
                ;;
-       dlink,dwr-116-a1)
+       dlink,dwr-116-a1|\
+       dlink,dwr-921-c1)
                [ "$magic" != "0404242b" ] && {
                        echo "Invalid image type."
                        return 1

diff --git a/target/linux/ramips/dts/DWR-921-C1.dts b/target/linux/ramips/dts/DWR-921-C1.dts
new file mode 100644 (file)
index 0000000..dbcbc17
--- /dev/null
+++ b/target/linux/ramips/dts/DWR-921-C1.dts
@@ -0,0 +1,144 @@
+/dts-v1/;
+
+#include "mt7620n.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+       compatible = "dlink,dwr-921-c1", "ralink,mt7620n-soc";
+       model = "D-Link DWR-921 C1";
+
+       gpio-keys-polled {
+       compatible = "gpio-keys-polled";
+               #address-cells = <1>;
+               #size-cells = <0>;
+               poll-interval = <20>;
+
+               wps {
+                       label = "wps";
+                       gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_WPS_BUTTON>;
+               };
+
+               reset {
+                       label = "reset";
+                       gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_RESTART>;
+               };
+       };
+
+       gpio-leds {
+               compatible = "gpio-leds";
+
+               sms {
+                       label = "dwr-921-c1:green:sms";
+                       gpios = <&gpio1 14 GPIO_ACTIVE_LOW>;
+               };
+
+               lan {
+                       label = "dwr-921-c1:green:lan";
+                       gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>;
+               };
+
+               sstrengthg {
+                       label = "dwr-921-c1:green:sigstrength";
+                       gpios = <&gpio2 0 GPIO_ACTIVE_LOW>;
+               };
+
+               sstrengthr {
+                       label = "dwr-921-c1:red:sigstrength";
+                       gpios = <&gpio2 1 GPIO_ACTIVE_LOW>;
+               };
+
+               4g {
+                       label = "dwr-921-c1:green:4g";
+                       gpios = <&gpio2 2 GPIO_ACTIVE_LOW>;
+               };
+
+               3g {
+                       label = "dwr-921-c1:green:3g";
+                       gpios = <&gpio2 3 GPIO_ACTIVE_LOW>;
+               };
+
+               wifi {
+                       label = "dwr-921-c1:green:wifi";
+                       gpios = <&gpio3 0 GPIO_ACTIVE_LOW>;
+               };
+       };
+
+       gpio_export {
+               compatible = "gpio-export";
+               #size-cells = <0>;
+
+               lte_modem_enable {
+                       gpio-export,name = "lte_modem_enable";
+                       gpio-export,output = <1>;
+                       gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
+               };
+       };
+};
+
+&gpio1 {
+       status = "okay";
+};
+
+&gpio2 {
+       status = "okay";
+};
+
+&gpio3 {
+       status = "okay";
+};
+
+&spi0 {
+       status = "okay";
+
+       m25p80@0 {
+               #address-cells = <1>;
+               #size-cells = <1>;
+               compatible = "jedec,spi-nor";
+               reg = <0>;
+               spi-max-frequency = <10000000>;
+
+               partition@0 {
+                       label = "jboot";
+                       reg = <0x0 0x10000>;
+                       read-only;
+               };
+
+               partition@10000 {
+                       label = "firmware";
+                       reg = <0x10000 0xfe0000>;
+               };
+
+               config: partition@ff0000 {
+                       label = "config";
+                       reg = <0xff0000 0x10000>;
+                       read-only;
+               };
+       };
+};
+
+&ehci {
+       status = "okay";
+};
+
+&ohci {
+       status = "okay";
+};
+
+&ethernet {
+       port@4 {
+               status = "okay";
+       };
+};
+
+&pinctrl {
+       state_default: pinctrl0 {
+               default {
+                       ralink,group = "spi refclk", "i2c", "ephy", "wled";
+                       ralink,function = "gpio";
+               };
+       };
+};

diff --git a/target/linux/ramips/image/mt7620.mk b/target/linux/ramips/image/mt7620.mk
index b352c5408dc9b99e20133890d56d5d61139d2b1a..185a081c906ce6cf97e9b39cc3f0d5481aab3a41 100644 (file)
--- a/target/linux/ramips/image/mt7620.mk
+++ b/target/linux/ramips/image/mt7620.mk
@@ -162,6 +162,22 @@ define Device/dlink_dwr-116-a1
 endef
 TARGET_DEVICES += dlink_dwr-116-a1
 
+define Device/dlink_dwr-921-c1
+  DTS := DWR-921-C1
+  IMAGE_SIZE := $(ralink_default_fw_size_16M)
+  DEVICE_TITLE := D-Link DWR-921 C1
+  DLINK_ROM_ID := DLK6E2414001
+  DLINK_FAMILY_MEMBER := 0x6E24
+  DLINK_FIRMWARE_SIZE := 0xFE0000
+  KERNEL := $(KERNEL_DTB)
+  IMAGES += factory.bin
+  IMAGE/sysupgrade.bin := mkdlinkfw | pad-rootfs | append-metadata
+  IMAGE/factory.bin := mkdlinkfw | pad-rootfs | mkdlinkfw-factory
+  DEVICE_PACKAGES := jboot-tools \
+       kmod-usb2 kmod-usb-net-qmi-wwan kmod-usb-serial-option uqmi
+endef
+TARGET_DEVICES += dlink_dwr-921-c1
+
 define Device/e1700
   DTS := E1700
   IMAGES += factory.bin