ramips: add support for Mikrotik LtAP-2HnD

Mikrotik LtAP-2HnD is a outdoor/automotive WLAN 4 router with integrated GPS
receiver and two mPCIe slots.

Specifications:
* SoC: MT7621A
* RAM: 128 MiB Nanya NT5CC64M16GP-DI
* Flash: 16 MiB winbond W25Q128JV
* WLAN:
  * Atheros AR9382 with power amplifier SKY 85330 (2x2 internal antennas,
    with RF switches for external connectors)
* Ethernet: 1 Gbps, single port
* USB Host: USB 2.0 Speeds
* Serial: 115200 baud
* LEDs: Power, System, GPS, 5* RSSI
*  mPCIe:
   * miniPCIe slot 1: PCIe and USB 2.0 Host (via switch shared with USB Host)
   * miniPCIe slot 2: USB 2.0 and 3.0
* SIM Cards:
  * Slot 1 Connected to mPCIe slot 1
  * Slot 2 and 3 connected to mPCIe slot 2 via switch
* GPS: MTK 3333 on serial port 2 (/dev/ttyS1), 115200 baud and PPS on gpio 14

gpios are exposed to /sys/class/gpio:

* usb-select: swithes USB 2.0 interface between external port and internal
mPCIe slot 1 default is the external USB interface
* gps-reset: resets the GPS interface chip
* sim-select: switches between sim slot 2 and 3 connected to mPCIe slot 2
* gps-ant-select: switches GPS antenna between internal antenna and SMA
connected antenna
* lte-reset: resets mPCIe slot 2

Flashing:
 TFTP boot initramfs image and then perform sysupgrade. Follow common
 MikroTik procedure as in https://openwrt.org/toh/mikrotik/common.

Signed-off-by: Arne Zachlod <arne@nerdkeller.org>

diff --git a/target/linux/ramips/dts/mt7621_mikrotik_ltap-2hnd.dts b/target/linux/ramips/dts/mt7621_mikrotik_ltap-2hnd.dts
new file mode 100644 (file)
index 0000000..feeda96
--- /dev/null
+++ b/target/linux/ramips/dts/mt7621_mikrotik_ltap-2hnd.dts
@@ -0,0 +1,171 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "mt7621_mikrotik.dtsi"
+
+/ {
+       compatible = "mikrotik,ltap-2hnd", "mediatek,mt7621-soc";
+       model = "MikroTik RouterBOARD LtAP-2HnD";
+
+       aliases {
+               led-boot = &led_usr;
+               led-failsafe = &led_usr;
+               led-running = &led_usr;
+               led-upgrade = &led_usr;
+       };
+
+       ath9k-leds {
+               compatible = "gpio-leds";
+
+               rssi0 {
+                       label = "green:rssi0";
+                       gpios = <&ath9k 0 GPIO_ACTIVE_LOW>;
+               };
+               rssi1 {
+                       label = "green:rssi1";
+                       gpios = <&ath9k 1 GPIO_ACTIVE_LOW>;
+               };
+               rssi2 {
+                       label = "green:rssi2";
+                       gpios = <&ath9k 2 GPIO_ACTIVE_LOW>;
+               };
+               rssi3 {
+                       label = "green:rssi3";
+                       gpios = <&ath9k 3 GPIO_ACTIVE_LOW>;
+               };
+               rssi4 {
+                       label = "green:rssi4";
+                       gpios = <&ath9k 4 GPIO_ACTIVE_LOW>;
+               };
+       };
+
+       leds {
+               compatible = "gpio-leds";
+
+               pwr {
+                       label = "blue:pwr";
+                       gpios = <&gpio 23 GPIO_ACTIVE_HIGH>;
+                       default-state = "on";
+               };
+
+               led_usr: usr {
+                       label = "green:usr";
+                       gpios = <&gpio 0 GPIO_ACTIVE_HIGH>;
+               };
+
+               gps {
+                       label = "green:gps";
+                       gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
+               };
+       };
+
+       /* TODO: find GPIOs for the WLAN antenna switches */
+       gpio-export {
+               compatible = "gpio-export";
+
+               usb-select {
+                       gpio-export,name = "usb-select";
+                       gpio-export,output = <1>;
+                       gpios = <&gpio 12 GPIO_ACTIVE_HIGH>;
+               };
+               gps-reset {
+                       gpio-export,name = "gps-reset";
+                       gpio-export,output = <1>;
+                       gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+               };
+               sim-select {
+                       gpio-export,name = "sim-select";
+                       gpio-export,output = <1>;
+                       gpios = <&gpio 25 GPIO_ACTIVE_HIGH>;
+               };
+               gps-ant-select {
+                       /* internal antenna = 0 */
+                       gpio-export,name = "gps-ant-select";
+                       gpio-export,output = <0>;
+                       gpios = <&gpio 27 GPIO_ACTIVE_HIGH>;
+               };
+               lte-reset {
+                       gpio-export,name = "lte-reset";
+                       gpio-export,output = <1>;
+                       gpios = <&gpio 29 GPIO_ACTIVE_HIGH>;
+               };
+       };
+
+       pps {
+               compatible = "pps-gpio";
+               gpios = <&gpio 14 GPIO_ACTIVE_HIGH>;
+       };
+
+       pcie1_vcc_reg {
+               compatible = "regulator-fixed";
+               regulator-name = "pcie1_vcc";
+
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               gpio = <&gpio 10 GPIO_ACTIVE_HIGH>;
+               enable-active-high;
+               regulator-boot-on;
+       };
+
+       pcie2_vcc_reg {
+               compatible = "regulator-fixed";
+               regulator-name = "pcie2_vcc";
+
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               gpio = <&gpio 11 GPIO_ACTIVE_HIGH>;
+               enable-active-high;
+               regulator-boot-on;
+       };
+};
+
+&partitions {
+       partition@40000 {
+               compatible = "mikrotik,minor";
+               label = "firmware";
+               reg = <0x040000 0xfc0000>;
+       };
+};
+
+&ethernet {
+       pinctrl-0 = <&mdio_pins>, <&rgmii1_pins>;
+};
+
+&switch0 {
+       ports {
+               port@0 {
+                       status = "okay";
+                       label = "lan";
+               };
+       };
+};
+
+&pcie0 {
+       status = "okay";
+
+       ath9k: wifi@0,0 {
+               compatible = "pci168c,0030";
+               reg = <0x0000 0 0 0 0>;
+               qca,no-eeprom;
+               gpio-controller;
+               #gpio-cells = <2>;
+       };
+};
+
+&state_default {
+       gpio {
+               groups = "uart2", "wdt", "rgmii2";
+               function = "gpio";
+       };
+};
+
+&i2c {
+       status = "okay";
+};
+
+&pcie {
+       status = "okay";
+};
+
+&uartlite3 {
+       status = "okay";
+};

diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk
index 222809dbbe0a2aa92385b63ca0d20673ad880c02..cf1813f79ca229e01ef85340e9c7971762684919 100644 (file)
--- a/target/linux/ramips/image/mt7621.mk
+++ b/target/linux/ramips/image/mt7621.mk
@@ -1350,6 +1350,13 @@ define Device/MikroTik
        append-metadata
 endef
 
+define Device/mikrotik_ltap-2hnd
+  $(Device/MikroTik)
+  DEVICE_MODEL := LtAP-2HnD
+  DEVICE_PACKAGES += kmod-ath9k kmod-pps-gpio rssileds
+endef
+TARGET_DEVICES += mikrotik_ltap-2hnd
+
 define Device/mikrotik_routerboard-750gr3
   $(Device/MikroTik)
   DEVICE_MODEL := RouterBOARD 750Gr3

diff --git a/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds b/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
index 9cf83c357c646dbd78ffbf6716fc39e3ccc7004c..a3c233a20fcb7f59c61c4f789efcaa7903350435 100644 (file)
--- a/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
+++ b/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
@@ -95,6 +95,7 @@ linksys,ea8100-v2)
 mikrotik,routerboard-760igs)
        ucidef_set_led_netdev "sfp" "SFP" "blue:sfp" "sfp"
        ;;
+mikrotik,ltap-2hnd|\
 mikrotik,routerboard-m11g)
        ucidef_set_rssimon "wlan0" "200000" "1"
        ucidef_set_led_rssi "rssilow" "RSSILOW" "green:rssi0" "wlan0" "1" "100"

diff --git a/target/linux/ramips/mt7621/base-files/etc/board.d/02_network b/target/linux/ramips/mt7621/base-files/etc/board.d/02_network
index bfc654a23aa319ce141b236a4c32a3b436534a9d..cef5d55925c806f8fbabfe07dfd8985b67da1f52 100644 (file)
--- a/target/linux/ramips/mt7621/base-files/etc/board.d/02_network
+++ b/target/linux/ramips/mt7621/base-files/etc/board.d/02_network
@@ -12,6 +12,7 @@ ramips_setup_interfaces()
        asus,rp-ac56|\
        asus,rp-ac87|\
        edimax,re23s|\
+       mikrotik,ltap-2hnd|\
        mikrotik,routerboard-m11g|\
        netgear,ex6150|\
        sercomm,na502|\
@@ -218,6 +219,9 @@ ramips_setup_macs()
                lan_mac=$(mtd_get_mac_ascii Config lan_hwaddr)
                wan_mac=$(mtd_get_mac_ascii Config wan_hwaddr)
                label_mac=$lan_mac
+       mikrotik,ltap-2hnd)
+               label_mac=$(cat "/sys/firmware/mikrotik/hard_config/mac_base")
+               lan_mac=$label_mac
                ;;
        tplink,mr600-v2-eu)
                label_mac=$(cat "/sys/class/net/eth0/address")

diff --git a/target/linux/ramips/mt7621/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom b/target/linux/ramips/mt7621/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
new file mode 100644 (file)
index 0000000..0bf5e85
--- /dev/null
+++ b/target/linux/ramips/mt7621/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
@@ -0,0 +1,33 @@
+#!/bin/sh
+
+[ -e /lib/firmware/$FIRMWARE ] && exit 0
+
+. /lib/functions/caldata.sh
+
+caldata_mikrotik_ath9k() {
+       local offset=$(($1))
+       local count=$(($2))
+       local macaddr=$3
+       local wlan_data="/sys/firmware/mikrotik/hard_config/wlan_data"
+
+       caldata_from_file $wlan_data $offset $count /tmp/$FIRMWARE
+       ath9k_patch_mac "$macaddr" /tmp/$FIRMWARE
+       caldata_sysfsload_from_file /tmp/$FIRMWARE 0x0 $count
+       rm -f /tmp/$FIRMWARE
+}
+
+board=$(board_name)
+
+case "$FIRMWARE" in
+"ath9k-eeprom-pci-0000:01:00.0.bin")
+       case $board in
+       mikrotik,ltap-2hnd)
+               mac_base="$(cat /sys/firmware/mikrotik/hard_config/mac_base)"
+               caldata_mikrotik_ath9k 0x5000 0x440 $(macaddr_add "$mac_base" 1)
+               ;;
+       *)
+               caldata_die "board $board is not supported yet"
+               ;;
+       esac
+       ;;
+esac

diff --git a/target/linux/ramips/mt7621/base-files/lib/upgrade/platform.sh b/target/linux/ramips/mt7621/base-files/lib/upgrade/platform.sh
index ebe4c638be883ad5f667f12aba17e44927ada413..d380ea66f75899decb867d6082f6c68be015454d 100755 (executable)
--- a/target/linux/ramips/mt7621/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ramips/mt7621/base-files/lib/upgrade/platform.sh
@@ -33,6 +33,7 @@ platform_do_upgrade() {
                        fw_setenv --lock / bootImage 0 || exit 1
                fi
                ;;
+       mikrotik,ltap-2hnd|\
        mikrotik,routerboard-750gr3|\
        mikrotik,routerboard-760igs|\
        mikrotik,routerboard-m11g|\