openwrt/target/linux/ath79/dts/ar7242_meraki_mr12.dts

171 lines
2.6 KiB
Plaintext
Raw Normal View History

ath79: add support for Meraki MR12 Port device support for Meraki MR12 from the ar71xx target to ath79. Specifications: - SoC: AR7242-AH1A CPU - RAM: 64MiB (NANYA NT5DS32M16DS-5T) - NOR Flash: 16MiB (MXIC MX25L12845EMI-10G) - Ethernet: 1 x PoE Gigabit Ethernet Port (SoC MAC + AR8021-BL1E PHY) - Ethernet: 1 x 100Mbit port (SoC MAC+PHY) - Wi-Fi: Atheros AR9283-AL1A (2T2R, 11n) Installation: 1. Requires TFTP server at 192.168.1.101, w/ initramfs & sysupgrade .bins 2. Open shell case 3. Connect a USB->TTL cable to headers furthest from the RF shield 4. Power on the router; connect to U-boot over 115200-baud connection 5. Interrupt U-boot process to boot Openwrt by running: setenv bootcmd bootm 0xbf0a0000; saveenv; tftpboot 0c00000 <filename-of-initramfs-kernel>.bin; bootm 0c00000; 6. Copy sysupgrade image to /tmp on MR12 7. sysupgrade /tmp/<filename-of-sysupgrade>.bin Notes: - kmod-owl-loader is still required to load the ART partition into the driver. - The manner of storing MAC addresses is updated from ar71xx; it is at 0x66 of the 'config' partition, where it was discovered that the OEM firmware stores it. This is set as read-only. If you are migrating from ar71xx and used the method mentioned above to upgrade, use kmod-mtd-rw or UCI to add the MAC back in. One more method for doing this is described below. - Migrating directly from ar71xx has not been thoroughly tested, but one method has been used a couple of times with good success, migrating 18.06.2 to a full image produced as of this commit. Please note that these instructions are only for experienced users, and/or those still able to open their device up to flash it via the serial headers should anything go wrong. 1) Install kmod-mtd-rw and uboot-envtools 2) Run `insmod mtd-rw.ko i_want_a_brick=1` 3) Modify /etc/fw_env.config to point to the u-boot-env partition. The file /etc/fw_env.config should contain: # MTD device env offset env size sector size /dev/mtd1 0x00000 0x10000 0x10000 See https://openwrt.org/docs/techref/bootloader/uboot.config for more details. 4) Run `fw_printenv` to verify everything is correct, as per the link above. 5) Run `fw_setenv bootcmd bootm 0xbf0a0000` to set a new boot address. 6) Manually modify /lib/upgrade/common.sh's get_image function: Change ... cat "$from" 2>/dev/null | $cmd ... into ... ( dd if=/dev/zero bs=1 count=$((0x66)) ; # Pad the first 102 bytes echo -ne '\x00\x18\x0a\x12\x34\x56' ; # Add in MAC address dd if=/dev/zero bs=1 count=$((0x20000-0x66-0x6)) ; # Pad the rest cat "$from" 2>/dev/null ) | $cmd ... which, during the upgrade process, will pad the image by 128K of zeroes-plus-MAC-address, in order for the ar71xx's firmware partition -- which starts at 0xbf080000 -- to be instead aligned with the ath79 firmware partition, which starts 128K later at 0xbf0a0000. 7) Copy the sysupgrade image into /tmp, as above 8) Run `sysupgrade -F /tmp/<sysupgrade>.bin`, then wait Again, this may BRICK YOUR DEVICE, so make *sure* to have your serial cable handy. Signed-off-by: Martin Kennedy <hurricos@gmail.com> [add LED migration and extend compat message] Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2020-11-28 02:03:32 +00:00
// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
#include "ar7242.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
/ {
compatible = "meraki,mr12", "qca,ar7242";
model = "Meraki MR12";
aliases {
led-boot = &led_power_orange;
led-failsafe = &led_power_orange;
led-running = &led_power_green;
led-upgrade = &led_power_orange;
};
extosc: ref {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-output-names = "ref";
clock-frequency = <40000000>;
};
leds {
compatible = "gpio-leds";
link1 {
label = "green:link1";
gpios = <&gpio 11 GPIO_ACTIVE_LOW>;
};
link2 {
label = "green:link2";
gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
};
link3 {
label = "green:link3";
gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
};
link4 {
label = "green:link4";
gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
};
lan {
label = "green:lan";
gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
};
led_power_orange: power_orange {
label = "orange:power";
gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
panic-indicator;
};
led_power_green: power_green {
label = "green:power";
gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
};
};
keys {
compatible = "gpio-keys";
reset {
label = "reset";
linux,code = <KEY_RESTART>;
gpios = <&gpio 8 GPIO_ACTIVE_LOW>;
};
};
};
&pcie {
status = "okay";
wifi@0,0,0 {
compatible = "pci168c,002a";
reg = <0x0000 0 0 0 0>;
qca,no-eeprom;
mtd-mac-address = <&config 0x66>;
mtd-mac-address-increment = <1>;
};
};
&pll {
clocks = <&extosc>;
};
&uart {
status = "okay";
};
&mdio0 {
status = "okay";
phy4: ethernet-phy@4 {
reg = <4>;
};
};
&eth0 {
status = "okay";
mtd-mac-address = <&config 0x66>;
pll-data = <0x02000000 0x00000101 0x00001313>;
phy-mode = "rgmii-id";
phy-handle = <&phy4>;
};
&mdio1 {
status = "okay";
};
&eth1 {
status = "okay";
mtd-mac-address = <&config 0x66>;
};
&spi {
status = "okay";
flash@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <50000000>;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "u-boot";
reg = <0x000000 0x40000>;
read-only;
};
partition@40000 {
label = "u-boot-env";
reg = <0x40000 0x40000>;
read-only;
};
config: partition@80000 {
label = "config";
reg = <0x80000 0x20000>;
read-only;
};
partition@a0000 {
label = "firmware";
reg = <0xa0000 0xf40000>;
compatible = "denx,uimage";
};
partition@fe0000 {
label = "art";
reg = <0xfe0000 0x20000>;
read-only;
};
};
};
};