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ramips: add initial support for TP-LINK TL-WR840N v4 #974

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ramips: add initial support for TP-LINK TL-WR840N v4 #974

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5 changes: 5 additions & 0 deletions target/linux/ramips/base-files/etc/board.d/01_leds
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Expand Up @@ -323,6 +323,11 @@ tiny-ac)
set_wifi_led "$board:orange:wifi"
set_usb_led "$board:green:usb"
;;
tl-wr840n-v4)
set_wifi_led "$board:green:wireless"
ucidef_set_led_switch "lan" "lan" "$board:green:lan" "switch0" "0x1e"
ucidef_set_led_switch "wan" "wan" "$board:green:wan" "switch0" "0x01"
;;
vocore)
ucidef_set_led_netdev "eth" "ETH" "$board:orange:eth" "eth0"
set_wifi_led "$board:green:status"
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1 change: 1 addition & 0 deletions target/linux/ramips/base-files/etc/board.d/02_network
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Expand Up @@ -151,6 +151,7 @@ ramips_setup_interfaces()
mzk-wdpr|\
rb750gr3|\
rt-n14u|\
tl-wr840n-v4|\
ubnt-erx|\
ur-326n4g|\
wrtnode|\
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1 change: 1 addition & 0 deletions target/linux/ramips/base-files/etc/diag.sh
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Expand Up @@ -35,6 +35,7 @@ get_status_led() {
nbg-419n2|\
pwh2004|\
r6220|\
tl-wr840n-v4|\
vr500|\
wnce2001|\
wndr3700v5|\
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3 changes: 3 additions & 0 deletions target/linux/ramips/base-files/lib/ramips.sh
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Expand Up @@ -478,6 +478,9 @@ ramips_board_detect() {
*"Timecloud")
name="timecloud"
;;
"TP-LINK TL-WR840N v4")
name="tl-wr840n-v4"
;;
*"UBNT-ERX")
name="ubnt-erx"
;;
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1 change: 1 addition & 0 deletions target/linux/ramips/base-files/lib/upgrade/platform.sh
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Expand Up @@ -135,6 +135,7 @@ platform_check_image() {
tew-714tru|\
timecloud|\
tiny-ac|\
tl-wr840n-v4|\
ur-326n4g|\
ur-336un|\
v22rw-2x2|\
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141 changes: 141 additions & 0 deletions target/linux/ramips/dts/TL-WR840NV4.dts
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@@ -0,0 +1,141 @@
/dts-v1/;

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>

#include "mt7628an.dtsi"

/ {
compatible = "tplink,tl-wr840n-v4", "mediatek,mt7628an-soc";
model = "TP-LINK TL-WR840N v4";

chosen {
bootargs = "console=ttyS0,115200";
};

memory@0 {
device_type = "memory";
reg = <0x0 0x4000000>;
};

gpio-keys-polled {
compatible = "gpio-keys-polled";
#address-cells = <1>;
#size-cells = <0>;
poll-interval = <20>;

reset {
label = "reset";
gpios = <&gpio1 6 GPIO_ACTIVE_LOW>;
linux,code = <KEY_RESTART>;
};
};

gpio-leds {
compatible = "gpio-leds";

power {
label = "tl-wr840n-v4:green:power";
gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
};

wireless {
label = "tl-wr840n-v4:green:wireless";
gpios = <&gpio1 12 GPIO_ACTIVE_LOW>;
};

ethernet {
label = "tl-wr840n-v4:green:lan";
gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
};

internet {
label = "tl-wr840n-v4:green:wan";
gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
};

wps {
label = "tl-wr840n-v4:green:wps";
gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
};
};
};

&pinctrl {
state_default: pinctrl0 {
gpio {
ralink,group = "i2c", "i2s", "uart1", "uart2", "p0led_an", "p2led_an" ;
ralink,function = "gpio";
};
};
};

&spi0 {
status = "okay";

m25p80@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <10000000>;
m25p,chunked-io = <32>;

partition@0 {
label = "boot";
reg = <0x0 0x20000>;
read-only;
};

partition@20000 {
label = "firmware";
reg = <0x20000 0x7a0000>;
};

partition@7c0000 {
label = "config";
reg = <0x7c0000 0x10000>;
read-only;
};

factory: partition@07d0000 {
label = "romfile";
reg = <0x7d0000 0x10000>;
read-only;
};

partition@07e0000 {
label = "rom";
reg = <0x7e0000 0x10000>;
read-only;
};

partition@07f0000 {
label = "radio";
reg = <0x7f0000 0x10000>;
read-only;
};
};
};

&usbphy {
status = "disabled";
};

&ehci {
status = "disabled";
};

&ohci {
status = "disabled";
};

&wmac {
status = "okay";
mtd-mac-address = <&factory 0xf100>;
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I'm trying to investigate poor wireless performance, which was described by @sanitariu
The thing I noticed here is that the EEPROM address was not defined, so it uses default value from mt7628an.dtsi, which is wrong for this hardware:
mediatek,mtd-eeprom = <&factory 0x0000>;
Real EEPROM is located in radio partition, so we must declare this:

&spi0 {
...
	m25p80@0 {
...
		radio: partition@07f0000 {
...
&wmac {
...
	mediatek,mtd-eeprom = <&radio 0x0000>;
};

But performance is still bad though.

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Did you make some patch for the correct eeprom ?

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You are the author of this https://raxp.ru/index.php/2017/06/21/lede-for-wr841n-v13wr840n-v4-ru/ ?
Can share the developments?

};

&ethernet {
mtd-mac-address = <&factory 0xf100>;
mediatek,portmap = "llllw";
};
15 changes: 15 additions & 0 deletions target/linux/ramips/image/mt7628.mk
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Expand Up @@ -2,6 +2,10 @@
# MT7628 Profiles
#

define Build/prepend-to
dd bs=1 seek=$(1) if=$@ of=$@.new && mv $@.new $@
endef

define Device/mt7628
DTS := MT7628
BLOCKSIZE := 64k
Expand All @@ -26,6 +30,17 @@ define Device/miwifi-nano
endef
TARGET_DEVICES += miwifi-nano

define Device/tl-wr840n-v4
DTS := TL-WR840NV4
IMAGE_SIZE := 7808k
DEVICE_TITLE := TP-Link TL-WR840N v4
DEVICE_PACKAGES :=
KERNEL := $(KERNEL_DTB) | prepend-to 448 | uImage lzma
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please use the existing pad-extra instead of your custom prepend-to.

pad-extra 448 | $(KERNEL_DTB) | uImage lzma

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I'm afraid it's not possible.
KERNEL_DTB = kernel-bin | patch-dtb | lzma
Calling pad-extra before making KERNEL_DTB causes, that all leading zeroes crated by pad-extra are subject of lzma a will be comprimed:(
I can't find better/simpler solution.

IMAGES += factory.bin
IMAGE/factory.bin := pad-extra 131072 | $$(sysupgrade_bin)
endef
TARGET_DEVICES += tl-wr840n-v4

define Device/vocore2
DTS := VOCORE2
IMAGE_SIZE := $(ralink_default_fw_size_16M)
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1 change: 1 addition & 0 deletions target/linux/ramips/mt7628/config-4.4
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Expand Up @@ -192,6 +192,7 @@ CONFIG_SPI_MT7621=y
# CONFIG_SPI_RT2880 is not set
CONFIG_SRCU=y
CONFIG_SWCONFIG=y
CONFIG_SWCONFIG_LEDS=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_SYS_HAS_CPU_MIPS32_R1=y
CONFIG_SYS_HAS_CPU_MIPS32_R2=y
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1 change: 1 addition & 0 deletions target/linux/ramips/mt7628/config-4.9
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Expand Up @@ -195,6 +195,7 @@ CONFIG_SPI_MT7621=y
# CONFIG_SPI_RT2880 is not set
CONFIG_SRCU=y
CONFIG_SWCONFIG=y
CONFIG_SWCONFIG_LEDS=y
CONFIG_SWPHY=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_SYS_HAS_CPU_MIPS32_R1=y
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