From 20581ee8b590afc56cda013272861e1e614a078e Mon Sep 17 00:00:00 2001 From: Nick French Date: Sat, 13 Aug 2022 12:09:50 -0500 Subject: [PATCH] ath79: add support for TP-Link Deco S4 Add support for TP-Link Deco S4 wifi router The label refers to the device as S4R and the TP-Link firmware site calls it the Deco S4 v2. (There does not appear to be a v1) Hardware (and FCC id) are identical to the Deco M4R v2 but the flash layout is ordered differently and the OEM firmware encrypts some config parameters (including the label mac address) in flash In order to set the encrypted mac address, the wlan's caldata node is removed from the DTS so the mac can be decrypted with the help of the uencrypt tool and patched into the wlan fw via hotplug Specifications: SoC: QCA9563-AL3A RAM: Zentel A3R1GE40JBF Wireless 2.4GHz: QCA9563-AL3A (main SoC) Wireless 5GHz: QCA9886 Ethernet Switch: QCA8337N-AL3C Flash: 16 MB SPI NOR UART serial access (115200N1) on board via solder pads: RX = TP1 pad TX = TP2 pad GND = C201 (pad nearest board edge) The device's bootloader and web gui will only accept images that were signed using TP-Link's RSA key, however a memory safety bug in the bootloader can be leveraged to install openwrt without accessing the serial console. See developer forum S4 support page for link to a "firmware" file that starts a tftp client, or you may generate one on your own like this: ``` python - > deco_s4_faux_fw_tftp.bin <I', 0x00008000) + b'X'*16 + b"fw-type:" \ + b'x'*256 + b"S000S001S002" + pack('>I', 0x80060200) \ b += b"\x00"*(0x200-len(b)) \ + pack(">33I", *[0x3c0887fc, 0x35083ddc, 0xad000000, 0x24050000, 0x3c048006, 0x348402a0, 0x3c1987f9, 0x373947f4, 0x0320f809, 0x00000000, 0x24050000, 0x3c048006, 0x348402d0, 0x3c1987f9, 0x373947f4, 0x0320f809, 0x00000000, 0x24050000, 0x3c048006, 0x34840300, 0x3c1987f9, 0x373947f4, 0x0320f809, 0x00000000, 0x24050000, 0x3c048006, 0x34840400, 0x3c1987f9, 0x373947f4, 0x0320f809, 0x00000000, 0x1000fff1, 0x00000000]) b += b"\xff"*(0x2A0-len(b)) + b"setenv serverip 192.168.0.2\x00" b += b"\xff"*(0x2D0-len(b)) + b"setenv ipaddr 192.168.0.1\x00" b += b"\xff"*(0x300-len(b)) + b"tftpboot 0x81000000 initramfs-kernel.bin\x00" b += b"\xff"*(0x400-len(b)) + b"bootm 0x81000000\x00" b += b"\xff"*(0x8000-len(b)) sys.stdout.buffer.write(b) EOF ``` Installation: 1. Run tftp server on pc with static ip 192.168.0.2 2. Place openwrt "initramfs-kernel.bin" image in tftp root dir 3. Connect pc to router ethernet port1 4. While holding in reset button on bottom of router, power on router 5. From pc access router webgui at http://192.168.0.1 6. Upload deco_s4_faux_fw_tftp.bin 7. Router will load and execture in-memory openwrt 8. Switch pc back to dhcp or static 192.168.1.x 9. Flash openwrt sysupgrade image via luci/ssh at 192.168.1.1 Revert to stock: Press and hold reset button while powering device to start the bootloader's recovery mode, where stock firmware can be uploaded via web gui at 192.168.0.1 Please note that one additional non-github commits is also needed: firmware-utils: add tplink-safeloader support for Deco S4 Signed-off-by: Nick French --- .../base-files/files/lib/functions/system.sh | 19 +++ .../ath79/dts/qca9563_tplink_deco-s4-v2.dts | 131 ++++++++++++++++++ .../generic/base-files/etc/board.d/02_network | 7 +- .../etc/hotplug.d/firmware/10-ath9k-eeprom | 5 + .../etc/hotplug.d/firmware/11-ath10k-caldata | 7 + .../base-files/lib/preinit/10_fix_eth_mac.sh | 6 +- target/linux/ath79/image/generic-tp-link.mk | 12 ++ 7 files changed, 185 insertions(+), 2 deletions(-) create mode 100644 target/linux/ath79/dts/qca9563_tplink_deco-s4-v2.dts diff --git a/package/base-files/files/lib/functions/system.sh b/package/base-files/files/lib/functions/system.sh index c17354d9457..22eb00c5155 100644 --- a/package/base-files/files/lib/functions/system.sh +++ b/package/base-files/files/lib/functions/system.sh @@ -110,6 +110,25 @@ mtd_get_mac_encrypted_arcadyan() { [ -n "$mac_dirty" ] && macaddr_canonicalize "$mac_dirty" } +mtd_get_mac_encrypted_deco() { + local mtdname="$1" + + if ! [ -e "$mtdname" ]; then + echo "mtd_get_mac_encrypted_deco: file $mtdname not found!" >&2 + return + fi + + tplink_key="3336303032384339" + + key=$(dd if=$mtdname bs=1 skip=16 count=8 2>/dev/null | \ + uencrypt -n -d -k $tplink_key -c des-ecb | hexdump -v -n 8 -e '1/1 "%02x"') + + macaddr=$(dd if=$mtdname bs=1 skip=32 count=8 2>/dev/null | \ + uencrypt -n -d -k $key -c des-ecb | hexdump -v -n 6 -e '5/1 "%02x:" 1/1 "%02x"') + + echo $macaddr +} + mtd_get_mac_text() { local mtdname=$1 local offset=$(($2)) diff --git a/target/linux/ath79/dts/qca9563_tplink_deco-s4-v2.dts b/target/linux/ath79/dts/qca9563_tplink_deco-s4-v2.dts new file mode 100644 index 00000000000..e4bb88807eb --- /dev/null +++ b/target/linux/ath79/dts/qca9563_tplink_deco-s4-v2.dts @@ -0,0 +1,131 @@ +// SPDX-License-Identifier: GPL-2.0-or-later OR MIT + +#include +#include + +#include "qca956x.dtsi" + +/ { + compatible = "tplink,deco-s4-v2", "qca,qca9563"; + model = "TP-Link Deco S4 v2"; + + aliases { + led-boot = &led_power; + led-failsafe = &led_power; + led-running = &led_power; + led-upgrade = &led_power; + }; + + leds { + compatible = "gpio-leds"; + + wlan2g { + label = "red:wlan2g"; + gpios = <&gpio 1 GPIO_ACTIVE_LOW>; + linux,default-trigger = "phy1tpt"; + }; + + led_power: power { + label = "green:power"; + gpios = <&gpio 7 GPIO_ACTIVE_LOW>; + default-state = "on"; + }; + + wlan5g { + label = "blue:wlan5g"; + gpios = <&gpio 9 GPIO_ACTIVE_LOW>; + linux,default-trigger = "phy0tpt"; + }; + }; + + + keys { + compatible = "gpio-keys"; + + reset { + label = "Reset button"; + linux,code = ; + gpios = <&gpio 2 GPIO_ACTIVE_LOW>; + debounce-interval = <60>; + }; + }; +}; + +&pcie { + status = "okay"; +}; + +&mdio0 { + status = "okay"; + + phy0: ethernet-phy@0 { + reg = <0>; + phy-mode = "sgmii"; + qca,mib-poll-interval = <500>; + + qca,ar8327-initvals = < + 0x04 0x00080080 /* PORT0 PAD MODE CTRL */ + 0x7c 0x0000007e /* PORT0_STATUS */ + >; + }; +}; + +&spi { + status = "okay"; + num-cs = <1>; + + flash@0 { + compatible = "jedec,spi-nor"; + reg = <0>; + spi-max-frequency = <25000000>; + + partitions { + compatible = "fixed-partitions"; + #address-cells = <1>; + #size-cells = <1>; + + uboot: partition@0 { + label = "u-boot"; + reg = <0x000000 0x080000>; + read-only; + }; + + partition@80000 { + label = "product-info"; + reg = <0x80000 0x05000>; + read-only; + }; + + config: partition@85000 { + label = "config"; + reg = <0x85000 0x16b000>; + read-only; + }; + + art: partition@1f0000 { + label = "art"; + reg = <0x1f0000 0x10000>; + read-only; + }; + + partition@200000 { + compatible = "denx,uimage"; + label = "firmware"; + reg = <0x200000 0xe00000>; + }; + }; + }; +}; + +ð0 { + status = "okay"; + + phy-mode = "sgmii"; + phy-handle = <&phy0>; +}; + +&wmac { + status = "okay"; + + qca,no-eeprom; +}; diff --git a/target/linux/ath79/generic/base-files/etc/board.d/02_network b/target/linux/ath79/generic/base-files/etc/board.d/02_network index 3b69c2bded2..a2ae5cb8de4 100644 --- a/target/linux/ath79/generic/base-files/etc/board.d/02_network +++ b/target/linux/ath79/generic/base-files/etc/board.d/02_network @@ -519,7 +519,8 @@ ath79_setup_interfaces() ucidef_add_switch "switch0" \ "0@eth0" "1:lan" "2:lan" ;; - tplink,deco-m4r-v1) + tplink,deco-m4r-v1|\ + tplink,deco-s4-v2) ucidef_add_switch "switch0" \ "0@eth0" "3:lan:1" "5:lan:2" ;; @@ -677,6 +678,10 @@ ath79_setup_macs() base_mac=$(mtd_get_mac_binary u-boot 0x1fc00) wan_mac=$(macaddr_add "$base_mac" 1) ;; + tplink,deco-s4-v2) + lan_mac=$(mtd_get_mac_encrypted_deco $(find_mtd_part config)) + label_mac=$lan_mac + ;; nec,wf1200cr|\ nec,wg1200cr) lan_mac=$(mtd_get_mac_ascii devdata "lanmac") diff --git a/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom b/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom index 9127aed36e1..04705aadf88 100644 --- a/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom +++ b/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom @@ -71,6 +71,11 @@ case "$FIRMWARE" in caldata_extract "radiocfg" 0x1000 0x440 ath9k_patch_mac $(mtd_get_mac_ascii devdata "wlan24mac") ;; + tplink,deco-s4-v2) + caldata_extract "art" 0x1000 0x440 + base_mac=$(mtd_get_mac_encrypted_deco $(find_mtd_part config)) + ath9k_patch_mac $(macaddr_add $base_mac 1) + ;; *) caldata_die "board $board is not supported yet" ;; diff --git a/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/11-ath10k-caldata b/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/11-ath10k-caldata index a47b29e7c7f..57e59a89d62 100644 --- a/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/11-ath10k-caldata +++ b/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/11-ath10k-caldata @@ -263,6 +263,13 @@ case "$FIRMWARE" in ln -sf /lib/firmware/ath10k/pre-cal-pci-0000\:00\:00.0.bin \ /lib/firmware/ath10k/QCA9888/hw2.0/board.bin ;; + tplink,deco-s4-v2) + caldata_extract "art" 0x5000 0x2f20 + base_mac=$(mtd_get_mac_encrypted_deco $(find_mtd_part config)) + ath10k_patch_mac $(macaddr_add $base_mac 2) + ln -sf /lib/firmware/ath10k/pre-cal-pci-0000\:00\:00.0.bin \ + /lib/firmware/ath10k/QCA9888/hw2.0/board.bin + ;; esac ;; *) diff --git a/target/linux/ath79/generic/base-files/lib/preinit/10_fix_eth_mac.sh b/target/linux/ath79/generic/base-files/lib/preinit/10_fix_eth_mac.sh index d9cb8d2b82e..d06f043ad4e 100644 --- a/target/linux/ath79/generic/base-files/lib/preinit/10_fix_eth_mac.sh +++ b/target/linux/ath79/generic/base-files/lib/preinit/10_fix_eth_mac.sh @@ -1,4 +1,4 @@ -. /lib/functions.sh +. /lib/functions/system.sh preinit_set_mac_address() { case $(board_name) in @@ -19,6 +19,10 @@ preinit_set_mac_address() { siemens,ws-ap3610) ip link set dev eth0 address $(mtd_get_mac_ascii cfg1 ethaddr) ;; + tplink,deco-s4-v2) + base_mac=$(mtd_get_mac_encrypted_deco $(find_mtd_part config)) + ip link set dev eth0 address $base_mac + ;; zyxel,nbg6616) ethaddr=$(mtd_get_mac_ascii u-boot-env ethaddr) ip link set dev eth0 address $(macaddr_add $ethaddr 2) diff --git a/target/linux/ath79/image/generic-tp-link.mk b/target/linux/ath79/image/generic-tp-link.mk index ffe1d6e290a..598085e50b0 100644 --- a/target/linux/ath79/image/generic-tp-link.mk +++ b/target/linux/ath79/image/generic-tp-link.mk @@ -493,6 +493,18 @@ define Device/tplink_deco-m4r-v1 endef TARGET_DEVICES += tplink_deco-m4r-v1 +define Device/tplink_deco-s4-v2 + $(Device/tplink-safeloader-uimage) + SOC := qca9563 + IMAGE_SIZE := 13824k + DEVICE_MODEL := Deco S4 + DEVICE_VARIANT := v2 + DEVICE_PACKAGES := kmod-ath10k-ct ath10k-firmware-qca9888-ct uencrypt + SUPPORTED_DEVICES += deco-s4-v2 + TPLINK_BOARD_ID := DECO-S4-V2 +endef +TARGET_DEVICES += tplink_deco-s4-v2 + define Device/tplink_re350k-v1 $(Device/tplink-safeloader) SOC := qca9558 -- 2.30.2