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55d2db0e8c
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>
171 lines
2.6 KiB
Plaintext
171 lines
2.6 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
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#include "ar7242.dtsi"
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/input/input.h>
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/ {
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compatible = "meraki,mr12", "qca,ar7242";
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model = "Meraki MR12";
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aliases {
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led-boot = &led_power_orange;
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led-failsafe = &led_power_orange;
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led-running = &led_power_green;
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led-upgrade = &led_power_orange;
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};
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extosc: ref {
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-output-names = "ref";
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clock-frequency = <40000000>;
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};
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leds {
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compatible = "gpio-leds";
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link1 {
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label = "green:link1";
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gpios = <&gpio 11 GPIO_ACTIVE_LOW>;
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};
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link2 {
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label = "green:link2";
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gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
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};
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link3 {
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label = "green:link3";
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gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
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};
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link4 {
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label = "green:link4";
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gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
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};
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lan {
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label = "green:lan";
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gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
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};
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led_power_orange: power_orange {
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label = "orange:power";
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gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
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panic-indicator;
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};
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led_power_green: power_green {
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label = "green:power";
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gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
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};
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};
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keys {
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compatible = "gpio-keys";
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reset {
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label = "reset";
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linux,code = <KEY_RESTART>;
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gpios = <&gpio 8 GPIO_ACTIVE_LOW>;
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};
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};
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};
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&pcie {
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status = "okay";
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wifi@0,0,0 {
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compatible = "pci168c,002a";
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reg = <0x0000 0 0 0 0>;
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qca,no-eeprom;
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mtd-mac-address = <&config 0x66>;
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mtd-mac-address-increment = <1>;
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};
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};
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&pll {
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clocks = <&extosc>;
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};
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&uart {
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status = "okay";
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};
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&mdio0 {
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status = "okay";
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phy4: ethernet-phy@4 {
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reg = <4>;
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};
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};
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ð0 {
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status = "okay";
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mtd-mac-address = <&config 0x66>;
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pll-data = <0x02000000 0x00000101 0x00001313>;
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phy-mode = "rgmii-id";
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phy-handle = <&phy4>;
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};
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&mdio1 {
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status = "okay";
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};
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ð1 {
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status = "okay";
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mtd-mac-address = <&config 0x66>;
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};
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&spi {
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status = "okay";
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flash@0 {
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compatible = "jedec,spi-nor";
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reg = <0>;
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spi-max-frequency = <50000000>;
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partitions {
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compatible = "fixed-partitions";
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#address-cells = <1>;
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#size-cells = <1>;
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partition@0 {
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label = "u-boot";
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reg = <0x000000 0x40000>;
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read-only;
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};
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partition@40000 {
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label = "u-boot-env";
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reg = <0x40000 0x40000>;
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read-only;
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};
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config: partition@80000 {
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label = "config";
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reg = <0x80000 0x20000>;
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read-only;
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};
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partition@a0000 {
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label = "firmware";
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reg = <0xa0000 0xf40000>;
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compatible = "denx,uimage";
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};
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partition@fe0000 {
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label = "art";
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reg = <0xfe0000 0x20000>;
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read-only;
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};
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};
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};
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};
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