openwrt/target/linux/ath79/dts/ar9344_tplink_cpe.dtsi
Michael Pratt 7b9a0c264c ath79: use dynamic partitioning for TP-Link CPE series
CPExxx and WBSxxx boards with AR9344 SOC
use the OKLI lzma kernel loader
with the offset of 3 blocks of length 4k (0x3000)
in order to have a fake "kernel" that cannot grow larger
than how it is defined in the now static OEM partition table.

Before recent changes to the mtdsplit driver,
the uImage parser for OKLI only supported images
that started exactly on an eraseblock boundary.

The mtdsplit parser for uImage now supports identifying images
with any magic number value
and at any offset from the eraseblock boundary
using DTS properties to define those values.

So, it is no longer necessary to use fixed sizes
for kernel and rootfs

Tested-by: Andrew Cameron <apcameron@softhome.net>  [CPE510 v2]
Tested-by: Bernhard Geier <freifunk@geierb.de>      [WBS210 v2]
Tested-by: Petrov <d7c48mWsPKx67w2@gmail.com>       [CPE210 v1]
Signed-off-by: Michael Pratt <mcpratt@pm.me>
2021-06-05 23:39:14 +02:00

117 lines
1.8 KiB
Plaintext

// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
#include "ar9344.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/mtd/partitions/uimage.h>
/ {
aliases {
label-mac-device = &wmac;
};
keys {
compatible = "gpio-keys";
reset {
linux,code = <KEY_RESTART>;
gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
debounce-interval = <60>;
};
};
};
&ref {
clock-frequency = <40000000>;
};
&spi {
status = "okay";
flash@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <25000000>;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
uboot: partition@0 {
label = "u-boot";
reg = <0x000000 0x020000>;
read-only;
};
partition@20000 {
label = "partition-table";
reg = <0x020000 0x010000>;
read-only;
};
info: partition@30000 {
label = "info";
reg = <0x030000 0x010000>;
read-only;
};
partition@40000 {
label = "firmware";
reg = <0x040000 0x780000>;
compatible = "openwrt,uimage", "denx,uimage";
openwrt,ih-magic = <IH_MAGIC_OKLI>;
openwrt,offset = <0x3000>;
};
partition@7c0000 {
label = "config";
reg = <0x7c0000 0x030000>;
read-only;
};
art: partition@7f0000 {
label = "art";
reg = <0x7f0000 0x010000>;
read-only;
};
};
};
};
&wmac {
status = "okay";
mtd-cal-data = <&art 0x1000>;
mtd-mac-address = <&info 0x8>;
};
&eth0 {
status = "okay";
phy-handle = <&swphy4>;
mtd-mac-address = <&info 0x8>;
};
&eth1 {
status = "okay";
};
&gpio {
gpio_ext_lna0 {
gpio-hog;
gpios = <18 GPIO_ACTIVE_HIGH>;
output-high;
line-name = "tp-link:ext:lna0";
};
gpio_ext_lna1 {
gpio-hog;
gpios = <19 GPIO_ACTIVE_HIGH>;
output-high;
line-name = "tp-link:ext:lna1";
};
};