ath79: add support for 8devices Lima board

Specification:

  • 650/600/216 MHz (CPU/DDR/AHB)
  • 64 MB of RAM (DDR2)
  • 32 MB of FLASH
  • 2T2R 2.4 GHz
  • 2x 10/100 Mbps Ethernet
  • 1x USB 2.0 Host socket
  • 1x miniPCIe slot
  • UART for serial console
  • 14x GPIO

Flash instructions:

Upgrading from ar71xx target:

  • Upload image into the board:
    scp openwrt-ath79-generic-8dev_lima-squashfs-sysupgrade.bin
    root@192.168.1.1/tmp/
  • Run sysupgrade
    sysupgrade -F /tmp/openwrt-ath79-generic-8dev_lima-squashfs-sysupgrade.bin

Upgrading from u-boot:

  • Set up tftp server with
    openwrt-ath79-generic-8dev_lima-initramfs-kernel.bin
  • Go to u-boot (reboot and press ESC when prompted)
  • Set TFTP server IP
    setenv serverip 192.168.1.254
  • Set device ip from the same subnet
    setenv ipaddr 192.168.1.1
  • Copy new firmware to board
    tftpboot 0x82000000 initramfs.bin
  • Boot OpenWRT
    bootm 0x82000000
  • Upload image openwrt-ath79-generic-8dev_lima-squashfs-sysupgrade.bin into
    the board
  • Run sysupgrade.

Signed-off-by: Andrey Bondar <a.bondar@8devices.com>

target/linux/ath79/dts/qca9531_8dev_lima.dts

@@ -0,0 +1,116 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+#include "qca953x.dtsi"
+
+/ {
+	compatible = "8dev,lima", "qca,qca9531";
+	model = "8devices Lima";
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			linux-code = "KEY_RESTART";
+			gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&pcie0 {
+	status = "okay";
+};
+
+&uart {
+	status = "okay";
+};
+
+&usb0 {
+	status = "okay";
+
+	dr_mode = "host";
+};
+
+&usb_phy {
+	status = "okay";
+};
+
+&wdt {
+	status = "okay";
+};
+
+&spi {
+	status = "okay";
+
+	num-cs = <1>;
+
+	/* Winbond W25Q256 SPI flash */
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <45000000>;
+
+		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>;
+			};
+
+			art: partition@80000 {
+				label = "art";
+				reg = <0x080000 0x040000>;
+				read-only;
+			};
+
+			partition@c0000 {
+				compatible = "denx,uimage";
+				label = "firmware";
+				reg = <0x0c0000 0xf40000>;
+			};
+		};
+	};
+};
+
+&mdio0 {
+	status = "okay";
+};
+
+&eth0 {
+	status = "okay";
+
+	phy-handle = <&swphy0>;
+	mtd-mac-address = <&art 0x6>;
+
+	gmac-config {
+		device = <&gmac>;
+
+		switch-phy-addr-swap = <1>;
+		switch-phy-swap = <1>;
+	};
+};
+
+&eth1 {
+	status = "okay";
+
+	mtd-mac-address = <&art 0x0>;
+};
+
+&wmac {
+	status = "okay";
+
+	mtd-cal-data = <&art 0x1000>;
+};

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

@@ -9,6 +9,10 @@ board=$(board_name)
 case "$FIRMWARE" in
 "ath9k-eeprom-ahb-18100000.wmac.bin")
 	case $board in
+	8dev,lima|\
+	ubnt,unifi)
+		caldata_extract "art" 0x1000 0x800
+		;;
 	avm,fritz1750e|\
 	avm,fritz4020|\
 	avm,fritz450e|\
@@ -110,9 +114,6 @@ case "$FIRMWARE" in
 	ubnt,rocket-m)
 		caldata_extract "art" 0x1000 0x1000
 		;;
-	ubnt,unifi)
-		caldata_extract "art" 0x1000 0x800
-		;;
 	wd,mynet-n750)
 		caldata_extract "art" 0x5000 0x440
 		ath9k_patch_mac $(mtd_get_mac_ascii devdata "wlan5mac")

target/linux/ath79/image/generic.mk

@@ -152,6 +152,16 @@ define Device/8dev_carambola2
 endef
 TARGET_DEVICES += 8dev_carambola2
 
+define Device/8dev_lima
+  SOC := qca9531
+  DEVICE_VENDOR := 8devices
+  DEVICE_MODEL := Lima
+  DEVICE_PACKAGES := kmod-usb2
+  IMAGE_SIZE := 15616k
+  SUPPORTED_DEVICES += lima
+endef
+TARGET_DEVICES += 8dev_lima
+
 define Device/adtran_bsap1880
   SOC := ar7161
   DEVICE_VENDOR := Adtran/Bluesocket