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ramips: add support for DLINK DWR-921-C1

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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>
This commit is contained in:
Giuseppe Lippolis 2018-03-10 10:34:38 +01:00 committed by Mathias Kresin
parent e9d5f8ebb2
commit 6525bffc0a
7 changed files with 175 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
target/linux/ramips/base-files/etc/board.d/01_leds
View file

@ -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|\

4
target/linux/ramips/base-files/etc/board.d/02_network
View file

@ -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)
;;

3
target/linux/ramips/base-files/etc/diag.sh
View file

@ -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"

3
target/linux/ramips/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom
View file

@ -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

3
target/linux/ramips/base-files/lib/upgrade/platform.sh
View file

@ -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

144
target/linux/ramips/dts/DWR-921-C1.dts Normal file
View file

@ -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";
};
};
};

16
target/linux/ramips/image/mt7620.mk
View file

@ -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