ath79: add support for Bluesocket BSAP1880 board

This board was used in dual-band 802.11n enterprise access points, models
BSAP-1800v2 and BSAP-1840, introduced in 2010 by Bluesocket, which was
acquired by Adtran in 2011, who has now EOL'ed them. They differed only in
that the BSAP-1840's antennae were detachable, while the BSAP-1800v2's were
inside the case. They have an external RJ-45 console port, which works with
standard Cisco 72-3383-01 console cables.

Specification:
- System-On-Chip: AR7161
- CPU/Speed: 600 MHz
- Flash-Chip: Macronix MX25L12845E
- Flash size: 16 MiB
- RAM: 64 MiB
- Wireless No1: Lite-On WN2601A card: AR9160/AR9103 2.4GHz 802.11bgn
- Wireless No2: Lite-On WN2502A card: AR9160/AR9106 5GHz 802.11an
- PHY: Vitesse VSC8601, Rev. B

Installation:
1. Connect to the serial console using a terminal that supports YMODEM at
   115200 bps, 8 data bits, no parity, 1 stop bit
2. Interrupt the bootloader using its password, which is: r00t
3. Issue the "fis init" command, confirming if prompted
4. Look at the length of the openwrt-ath79-generic-*-squashfs-kernel.bin
   file, and substitute it below, instead of where I have "LeNgTh"
5. Issue the following command, and upload this file using YMODEM protocol
   load -r -v -b 0x80060000 -m ymodem
6. Issue the following commands, substituting as mentioned above:
   fis create -b 0x80060000 -l LeNgTh vmlinux_2
   load -r -v -b 0x80100000 -m ymodem
7. Using YMODEM, upload openwrt-ath79-generic-*-squashfs-rootfs.bin
8. Issue the "fis free" command, and for the first range in its response,
   use a hexadecimal calculator to subtract the start from the end in order
   to substitute it below, with the leading "0x" to specify it in
   hexadecimal, instead of where I have "LeNgTh"
9. Issue the following commands, substituting as mentioned above:
   fis create -b 0x80100000 -l LeNgTh -e 0 -r 0 rootfs
   reset
10.Wait for the status LED to go solid green

Tested-by: Brian Gonyer <bgonyer@gmail.com>
Signed-off-by: Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
[fixed obsolete $ARGV in platform_do_upgrade]
Signed-off-by: Petr Štetiar <ynezz@true.cz>

3 files changed, 117 insertions, 0 deletions

diff --git a/target/linux/ath79/dts/ar7161_adtran_bsap1800-v2.dts b/target/linux/ath79/dts/ar7161_adtran_bsap1800-v2.dts
new file mode 100644
index 0000000000..1745ac76fb
--- /dev/null
+++ b/target/linux/ath79/dts/ar7161_adtran_bsap1800-v2.dts
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/dts-v1/;
+
+#include "ar7161_adtran_bsap1880.dtsi"
+
+/ {
+	model = "Adtran/Bluesocket BSAP-1800 v2";
+	compatible = "adtran,bsap1800-v2", "qca,ar7161";
+};
diff --git a/target/linux/ath79/dts/ar7161_adtran_bsap1840.dts b/target/linux/ath79/dts/ar7161_adtran_bsap1840.dts
new file mode 100644
index 0000000000..38b87a1e32
--- /dev/null
+++ b/target/linux/ath79/dts/ar7161_adtran_bsap1840.dts
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/dts-v1/;
+
+#include "ar7161_adtran_bsap1880.dtsi"
+
+/ {
+	model = "Adtran/Bluesocket BSAP-1840";
+	compatible = "adtran,bsap1840", "qca,ar7161";
+};
diff --git a/target/linux/ath79/dts/ar7161_adtran_bsap1880.dtsi b/target/linux/ath79/dts/ar7161_adtran_bsap1880.dtsi
new file mode 100644
index 0000000000..ba9b588bec
--- /dev/null
+++ b/target/linux/ath79/dts/ar7161_adtran_bsap1880.dtsi
@@ -0,0 +1,99 @@
+// 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 "ar7100.dtsi"
+
+/ {
+	chosen {
+		bootargs = "console=ttyS0,115200n8";
+	};
+
+	aliases {
+		led-boot = &led_green_status;
+		led-failsafe = &led_yellow_status;
+		led-running = &led_green_status;
+		led-upgrade = &led_yellow_status;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		wlan5g {
+			label = "bluesocket:green:wifi5g";
+			gpios = <&gpio 8 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy1tpt";
+		};
+
+		wlan2g {
+			label = "bluesocket:green:wifi2g";
+			gpios = <&gpio 7 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy0tpt";
+		};
+
+		led_green_status: green_status {
+			label = "bluesocket:green:status";
+			gpios = <&gpio 5 GPIO_ACTIVE_LOW>;
+		};
+
+		led_yellow_status: yellow_status {
+			label = "bluesocket:yellow:status";
+			gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 6 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+	};
+};
+
+&mdio0 {
+	status = "okay";
+
+	phy-mask = <0x1>;
+
+	phy0: ethernet-phy@0 {
+		reg = <0>;
+	};
+};
+
+&eth0 {
+	status = "okay";
+
+	phy-mode = "rgmii-id";
+	phy-handle = <&phy0>;
+};
+
+&pcie0 {
+	status = "okay";
+};
+
+&spi {
+	status = "okay";
+	num-cs = <1>;
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <25000000>;
+
+		partitions {
+			#address-cells = <1>;
+			#size-cells = <1>;
+			compatible = "ecoscentric,redboot-fis-partitions";
+		};
+	};
+};
+
+&uart {
+	status = "okay";
+};