[OpenWrt-Devel] [PATCH v7] ramips: add support for Asus RT-AC85P

Birger Koblitz mail at birger-koblitz.de
Sun Sep 15 10:20:11 EDT 2019 

ramips: add support for Asus RT-AC85P

SoC:	MediaTek MT7621AT dual-core @ 880MHz
RAM:	256M (Winbond W632GG6KB-1)
FLASH:	128MB (Macronix MX30LF1G18AC-TI)
WiFi:	- 2.4GHz MediaTek MT7615N bgn
	- 5GHz MediaTek MT7615N nac
Switch: SoC integrated Gigabit Switch (4 x LAN, 1 x WAN)
USB:	1 x USB 3.1 (Gen 1)
BTN:	Reset, WPS
LED:	- Power (blue)
	- 5Ghz (blue)
	- 2.4GHz (blue)
	- Internet (blue)
	- 4x LAN (blue)
	(LAN/WAN leds are not controllable by GPIOs)
UART: 	UART is present as Pads marked J4 on the PCB.
	3.3V - TX - RX - GND / 57600-8N1
	3.3V is the square pad
MAC:	The MAC address on the router-label matches the MAC of
	the 2.4 GHz WiFi.
	LAN and WAN MAC are identical: MAC_LABEL+4
	5 GHz WiFi MAC: also MAC_LABEL+4
	

Installation
------------
Via U-Boot tftpd:
Switch on device, within 2s press reset button and keep pressed
until power LED starts blinking slowly.
Upload factory image via tftp put, the router's ip is 192.168.1.1
and expects the client on 192.168.1.75.

The images also work on the Asus RT-AC65P models as tested by Gabor.

Signed-off-by: Birger Koblitz <mail at birger-koblitz.de>
Tested-by: Gabor Varga <vargagab at gmail.com>

---

v2: Corrected sorting of entries in 02_network
    Model name corrected in .dts
    Whitespace fixes in .dts
    wifi0/1 labels added to wifi nodes in .dts
    Device name capitalized in mt7621.mk

v3: Added firmware backup to firmware2 partition before sysupgrade
    Corrected modules included in image

v4: Corrected MT7615N PCI IDs

v5: Fixed indentation in platform.sh

v6: Rebased to latest master

v7: Removed unnecessary mtd-mac-address definitions
    Fixed indentation mt7621_asus_rt-ac85p.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 b4634e0928..80e6a91c88 100755
--- a/target/linux/ramips/base-files/etc/board.d/02_network
+++ b/target/linux/ramips/base-files/etc/board.d/02_network
@@ -230,6 +230,18 @@ ramips_setup_interfaces()
 		ucidef_add_switch "switch0" \
 			"0:lan" "1:wan" "6 at eth0"
 		;;
+	asus,rt-ac85p|\
+	dlink,dir-860l-b1|\
+	elecom,wrc-1167ghbk2-s|\
+	elecom,wrc-1900gst|\
+	elecom,wrc-2533gst|\
+	huawei,hg255d|\
+	iodata,wn-ax1167gr|\
+	iodata,wn-gx300gr|\
+	iptime,a604m)
+		ucidef_add_switch "switch0" \
+			"1:lan:4" "2:lan:3" "3:lan:2" "4:lan:1" "0:wan" "6 at eth0"
+		;;
 	asus,rt-n15|\
 	belkin,f9k1109v1|\
 	sitecom,wl-351)
@@ -297,17 +309,6 @@ ramips_setup_interfaces()
 		ucidef_add_switch "switch0" \
 			"0:lan:4" "1:lan:3" "2:lan:2" "3:lan:1" "4:wan:5" "6 at eth0"
 		;;
-	dlink,dir-860l-b1|\
-	elecom,wrc-1167ghbk2-s|\
-	elecom,wrc-1900gst|\
-	elecom,wrc-2533gst|\
-	huawei,hg255d|\
-	iodata,wn-ax1167gr|\
-	iodata,wn-gx300gr|\
-	iptime,a604m)
-		ucidef_add_switch "switch0" \
-			"1:lan:4" "2:lan:3" "3:lan:2" "4:lan:1" "0:wan" "6 at eth0"
-		;;
 	dlink,dwr-118-a1)
 		ucidef_add_switch "switch0" \
 			"1:lan:2" "2:lan:3" "3:lan:1" "4:lan:0" "5:wan" "6 at eth0"
@@ -551,6 +552,9 @@ ramips_setup_macs()
 	zbtlink,zbt-we3526)
 		wan_mac=$(mtd_get_mac_binary factory 0xe006)
 		;;
+	asus,rt-ac85p)
+		wan_mac=$(mtd_get_mac_ascii u-boot-env et1macaddr)
+		;;
 	asus,rt-n56u)
 		lan_mac=$(macaddr_setbit_la "$(cat /sys/class/net/eth0/address)")
 		wan_mac=$(mtd_get_mac_binary factory 0x8004)
diff --git a/target/linux/ramips/base-files/lib/upgrade/platform.sh b/target/linux/ramips/base-files/lib/upgrade/platform.sh
index 9889079db9..a62ded4b9d 100755
--- a/target/linux/ramips/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ramips/base-files/lib/upgrade/platform.sh
@@ -18,9 +18,16 @@ platform_do_upgrade() {
 	mikrotik,rbm33g)
 		[ -z "$(rootfs_type)" ] && mtd erase firmware
 		;;
+	asus,rt-ac85p)
+		echo "Backing up firmware"
+		dd if=/dev/mtd4 bs=1024 count=4096  > /tmp/backup_firmware.bin
+		dd if=/dev/mtd5 bs=1024 count=52224 >> /tmp/backup_firmware.bin
+		mtd -e firmware2 write /tmp/backup_firmware.bin firmware2
+		;;
 	esac

 	case "$board" in
+	asus,rt-ac85p|\
 	hiwifi,hc5962|\
 	netgear,r6220|\
 	netgear,r6260|\
diff --git a/target/linux/ramips/dts/mt7621_asus_rt-ac85p.dts b/target/linux/ramips/dts/mt7621_asus_rt-ac85p.dts
new file mode 100644
index 0000000000..8084178faa
--- /dev/null
+++ b/target/linux/ramips/dts/mt7621_asus_rt-ac85p.dts
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/dts-v1/;
+
+#include "mt7621.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	compatible = "asus,rt-ac85p", "mediatek,mt7621-soc";
+	model = "Asus RT-AC85P";
+
+	aliases {
+		led-boot = &led_power;
+		led-failsafe = &led_power;
+		led-running = &led_power;
+		led-upgrade = &led_power;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,57600";
+	};
+
+	palmbus: palmbus at 1E000000 {
+		i2c at 900 {
+			status = "okay";
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+
+		wps {
+			label = "wps";
+			gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_power: power {
+			label = "rt-ac85p:blue:power";
+			gpios = <&gpio0 4 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy0tpt";
+		};
+		wlan2g {
+			label = "rt-ac85p:blue:wlan2g";
+			gpios = <&gpio0 10 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy0radio";
+		};
+
+		wlan5g {
+			label = "rt-ac85p:blue:wlan5g";
+			gpios = <&gpio0 8 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy1radio";
+		};
+	};
+};
+
+&sdhci {
+	status = "okay";
+};
+
+&nand {
+	status = "okay";
+
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		partition at 0 {
+			label = "u-boot";
+			reg = <0x0 0xe0000>;
+			read-only;
+		};
+
+		partition at e0000 {
+			label = "u-boot-env";
+			reg = <0xe0000 0x100000>;
+			read-only;
+		};
+
+		factory: partition at 1e0000 {
+			label = "factory";
+			reg = <0x1e0000 0x100000>;
+			read-only;
+		};
+
+		factory2: partition at 2e0000 {
+			label = "factory2";
+			reg = <0x2e0000 0x100000>;
+			read-only;
+		};
+
+		partition at 3e0000 {
+			label = "kernel";
+			reg = <0x3e0000 0x400000>;
+		};
+
+		partition at 7e0000 {
+			label = "ubi";
+			reg = <0x7e0000 0x2e00000>;
+		};
+
+		partition at 35e0000 {
+			label = "firmware2";
+			reg = <0x35e0000 0x3200000>;
+		};
+	};
+};
+
+&pcie {
+	status = "okay";
+};
+
+&pcie0 {
+	wifi0: wifi at 0,0 {
+		compatible = "pci14c3,7615";
+		reg = <0x0000 0 0 0 0>;
+		mediatek,mtd-eeprom = <&factory 0x0000>;
+		ieee80211-freq-limit = <2400000 2500000>;
+	};
+};
+
+&pcie1 {
+	wifi1: wifi at 0,0 {
+		compatible = "pci14c3,7615";
+		reg = <0x0000 0 0 0 0>;
+		mediatek,mtd-eeprom = <&factory 0x8000>;
+		ieee80211-freq-limit = <5000000 6000000>;
+	};
+};
+
+&ethernet {
+	mtd-mac-address = <&factory 0xe000>;
+	mediatek,portmap = "wllll";
+	port at 5 {
+		status = "disabled";
+	};
+};
+
+&i2c {
+	status = "disabled";
+};
+
+&pinctrl {
+	state_default: pinctrl0 {
+		gpio {
+			ralink,group = "uart2", "uart3", "i2c";
+			ralink,function = "gpio";
+		};
+	};
+};
diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk
index 986fe5e2f8..79d14a5954 100644
--- a/target/linux/ramips/image/mt7621.mk
+++ b/target/linux/ramips/image/mt7621.mk
@@ -115,6 +115,22 @@ define Device/asus_rt-ac57u
 endef
 TARGET_DEVICES += asus_rt-ac57u

+define Device/asus_rt-ac85p
+  MTK_SOC := mt7621
+  DEVICE_VENDOR := ASUS
+  DEVICE_MODEL := RT-AC85P
+  IMAGE_SIZE := 51200k
+  UBINIZE_OPTS := -E 5
+  BLOCKSIZE := 128k
+  PAGESIZE := 2048
+  KERNEL_SIZE := 4096k
+  IMAGES += factory.bin
+  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
+  IMAGE/factory.bin := append-kernel | pad-to $$(KERNEL_SIZE) | append-ubi | check-size $$$$(IMAGE_SIZE)
+  DEVICE_PACKAGES := kmod-usb3 kmod-mt7615e wpad-basic uboot-envtools
+endef
+TARGET_DEVICES += asus_rt-ac85p
+
 define Device/buffalo_wsr-1166dhp
   MTK_SOC := mt7621
   IMAGE/sysupgrade.bin := trx | pad-rootfs | append-metadata
diff --git a/target/linux/ramips/patches-4.14/0039-mtd-add-mt7621-nand-support.patch b/target/linux/ramips/patches-4.14/0039-mtd-add-mt7621-nand-support.patch
index 03b2b36db9..3c6a59b863 100644
--- a/target/linux/ramips/patches-4.14/0039-mtd-add-mt7621-nand-support.patch
+++ b/target/linux/ramips/patches-4.14/0039-mtd-add-mt7621-nand-support.patch
@@ -4256,7 +4256,7 @@ Signed-off-by: John Crispin <blogic at openwrt.org>
 +#endif /* __NAND_DEF_H__ */
 --- /dev/null
 +++ b/drivers/mtd/nand/nand_device_list.h
-@@ -0,0 +1,59 @@
+@@ -0,0 +1,60 @@
 +/* Copyright Statement:
 + *
 + * This software/firmware and related documentation ("MediaTek Software") are
@@ -4308,6 +4308,7 @@ Signed-off-by: John Crispin <blogic at openwrt.org>
 +	{0xC8DC, 0x909554, 5, 8, 512, 128, 2048, 64, 0x30C77fff, "F59L4G81A", 0},
 +	{0xECD3, 0x519558, 5, 8, 1024, 128, 2048, 64, 0x44333, "K9K8G8000", 0},
 +    {0xC2F1, 0x801DC2, 4, 8, 128, 128, 2048, 64, 0x30C77fff, "MX30LF1G08AA", 0},
++    {0xC2F1, 0x809502, 4, 8, 128, 128, 2048, 64, 0x30C77fff, "MX30LF1G18AC", 0},
 +    {0x98D3, 0x902676, 5, 8, 1024, 256, 4096, 224, 0x00C25332, "TC58NVG3S0F", 0},
 +    {0x01DA, 0x909546, 5, 8, 256, 128, 2048, 128, 0x30C77fff, "S34ML02G200TF", 0},
 +    {0x01DC, 0x909556, 5, 8, 512, 128, 2048, 128, 0x30C77fff, "S34ML04G200TF", 0},

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