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ath79: Add support for OpenMesh OM2P v1

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Device specifications:
======================

* Qualcomm/Atheros AR7240 rev 2
* 350/350/175 MHz (CPU/DDR/AHB)
* 32 MB of RAM
* 16 MB of SPI NOR flash
  - 2x 7 MB available; but one of the 7 MB regions is the recovery image
* 2x 10/100 Mbps Ethernet
* 1T1R 2.4 GHz Wi-Fi
* 6x GPIO-LEDs (3x wifi, 2x ethernet, 1x power)
* 1x GPIO-button (reset)
* external h/w watchdog (enabled by default)
* TTL pins are on board (arrow points to VCC, then follows: GND, TX, RX)
* 2x fast ethernet
  - eth0
    + 18-24V passive POE (mode B)
    + used as WAN interface
  - eth1
    + builtin switch port 4
    + used as LAN interface
* 12-24V 1A DC
* external antenna

The device itself requires the mtdparts from the uboot arguments to
properly boot the flashed image and to support dual-boot (primary +
recovery image). Unfortunately, the name of the mtd device in mtdparts is
still using the legacy name "ar7240-nor0" which must be supplied using the
Linux-specfic DT parameter linux,mtd-name to overwrite the generic name
"spi0.0".

Flashing instructions:
======================

Various methods can be used to install the actual image on the flash.
Two easy ones are:

ap51-flash
----------

The tool ap51-flash (https://github.com/ap51-flash/ap51-flash) should be
used to transfer the image to the u-boot when the device boots up.

initramfs from TFTP
-------------------

The serial console must be used to access the u-boot shell during bootup.
It can then be used to first boot up the initramfs image from a TFTP server
(here with the IP 192.168.1.21):

   setenv serverip 192.168.1.21
   setenv ipaddr 192.168.1.1
   tftpboot 0c00000 <filename-of-initramfs-kernel>.bin && bootm $fileaddr

The actual sysupgrade image can then be transferred (on the LAN port) to the
device via

  scp <filename-of-squashfs-sysupgrade>.bin root@192.168.1.1:/tmp/

On the device, the sysupgrade must then be started using

  sysupgrade -n /tmp/<filename-of-squashfs-sysupgrade>.bin

Signed-off-by: Sven Eckelmann <sven@narfation.org>
This commit is contained in:
Sven Eckelmann 2020-11-23 13:41:34 +01:00 committed by Hauke Mehrtens
parent 7f074fe1a7
commit 8143709c90
7 changed files with 190 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
package/boot/uboot-envtools/files/ath79
View File

@ -103,6 +103,7 @@ netgear,wndr4300tn|\
netgear,wndr4300sw)
ubootenv_add_uci_config "/dev/mtd1" "0x0" "0x40000" "0x20000"
;;
openmesh,om2p-v1|\
openmesh,om2p-v2|\
openmesh,om2p-v4|\
openmesh,om2p-hs-v1|\

170
target/linux/ath79/dts/ar7240_openmesh_om2p-v1.dts Normal file
View File

@ -0,0 +1,170 @@
// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
#include "ar7240.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
/ {
compatible = "openmesh,om2p-v1", "qca,ar7240";
model = "OpenMesh OM2P v1";
chosen {
/delete-property/ bootargs;
};
aliases {
led-boot = &led_power_blue;
led-failsafe = &led_power_blue;
led-running = &led_power_blue;
led-upgrade = &led_power_blue;
label-mac-device = &eth0;
};
keys {
compatible = "gpio-keys";
reset {
label = "reset";
linux,code = <KEY_RESTART>;
gpios = <&gpio 1 GPIO_ACTIVE_LOW>;
};
};
leds {
compatible = "gpio-leds";
pinctrl-names = "default";
pinctrl-0 = <&switch_led_disable_pins>;
led_power_blue: power_blue {
label = "blue:power";
gpios = <&gpio 0 GPIO_ACTIVE_LOW>;
default-state = "on";
};
wifi_green {
label = "green:wifi";
gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
linux,default-trigger = "phy0tpt";
};
wifi_red {
label = "red:wifi";
gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
};
wifi_yellow {
label = "yellow:wifi";
gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
};
lan_blue {
label = "blue:lan";
gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
};
wan_blue {
label = "blue:wan";
gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
};
};
watchdog {
compatible = "linux,wdt-gpio";
gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
hw_algo = "toggle";
/* hw_margin_ms is actually 300s but driver limits it to 60s */
hw_margin_ms = <60000>;
always-running;
};
};
&spi {
status = "okay";
flash@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <40000000>;
linux,mtd-name = "ar7240-nor0";
/* partitions are passed via bootloader */
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "u-boot";
reg = <0x000000 0x040000>;
read-only;
};
partition@40000 {
label = "u-boot-env";
reg = <0x040000 0x040000>;
};
partition@80000 {
label = "custom";
reg = <0x080000 0x140000>;
read-only;
};
partition@1c0000 {
label = "inactive";
reg = <0x1c0000 0x700000>;
};
partition@8c0000 {
label = "inactive2";
reg = <0x8c0000 0x700000>;
};
art: partition@fc0000 {
label = "ART";
reg = <0xfc0000 0x040000>;
read-only;
};
};
};
};
&eth0 {
nvmem-cells = <&macaddr_art_0>;
nvmem-cell-names = "mac-address";
};
&eth1 {
status = "okay";
nvmem-cells = <&macaddr_art_6>;
nvmem-cell-names = "mac-address";
};
&pcie {
status = "okay";
wifi@0,0 {
compatible = "pci168c,002a";
reg = <0x0000 0 0 0 0>;
qca,no-eeprom;
#gpio-cells = <2>;
gpio-controller;
};
};
&art {
compatible = "nvmem-cells";
#address-cells = <1>;
#size-cells = <1>;
macaddr_art_0: macaddr@0 {
reg = <0x0 0x6>;
};
macaddr_art_6: macaddr@6 {
reg = <0x6 0x6>;
};
};

4
target/linux/ath79/generic/base-files/etc/board.d/01_leds
View File

@ -271,6 +271,10 @@ openmesh,om2p-hs-v4)
ucidef_set_led_netdev "wan" "WAN" "blue:wan" "eth0"
ucidef_set_led_switch "lan" "LAN" "blue:lan" "switch0" "0x02"
;;
openmesh,om2p-v1)
ucidef_set_led_netdev "wan" "WAN" "blue:wan" "eth0"
ucidef_set_led_switch "lan" "LAN" "blue:lan" "switch0" "0x10"
;;
openmesh,om5p-ac-v1)
ucidef_set_led_netdev "lan" "LAN" "blue:lan" "eth0"
ucidef_set_led_netdev "wan" "WAN" "blue:wan" "eth1"

1
target/linux/ath79/generic/base-files/etc/board.d/02_network
View File

@ -188,6 +188,7 @@ ath79_setup_interfaces()
compex,wpj531-16m|\
openmesh,a40|\
openmesh,a60|\
openmesh,om2p-v1|\
openmesh,om2p-v4|\
openmesh,om2p-hs-v4|\
plasmacloud,pa300|\

3
target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
View File

@ -131,6 +131,9 @@ case "$FIRMWARE" in
openmesh,om5p-an)
caldata_extract "ART" 0x5000 0x440
;;
openmesh,om2p-v1)
caldata_extract "ART" 0x1000 0x440
;;
wd,mynet-n600|\
wd,mynet-n750)
caldata_extract "art" 0x5000 0x440

1
target/linux/ath79/generic/base-files/lib/upgrade/platform.sh
View File

@ -73,6 +73,7 @@ platform_do_upgrade() {
openmesh,mr900-v2|\
openmesh,mr1750-v1|\
openmesh,mr1750-v2|\
openmesh,om2p-v1|\
openmesh,om2p-v2|\
openmesh,om2p-v4|\
openmesh,om2p-hs-v1|\

10
target/linux/ath79/image/generic.mk
View File

@ -1836,6 +1836,16 @@ define Device/openmesh_mr1750-v2
endef
TARGET_DEVICES += openmesh_mr1750-v2
define Device/openmesh_om2p-v1
$(Device/openmesh_common_256k)
SOC := ar7240
DEVICE_MODEL := OM2P
DEVICE_VARIANT := v1
OPENMESH_CE_TYPE := OM2P
SUPPORTED_DEVICES += om2p
endef
TARGET_DEVICES += openmesh_om2p-v1
define Device/openmesh_om2p-v2
$(Device/openmesh_common_256k)
SOC := ar9330