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ramips: add support for Mikrotik LtAP-2HnD

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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>
This commit is contained in:
Arne Zachlod
2022-08-06 15:35:15 +02:00
committed by Hauke Mehrtens
parent 5a1af6ed62
commit ffa4b5283b
6 changed files with 217 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
target/linux/ramips/mt7621/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom Normal file
View File

@@ -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