ramips: Add support for the GnuBee Personal Cloud Two

The GnuBee Personal Cloud Two crowdfunded on https://www.crowdsupply.com
It is a low-cost, low-power, network-attached storage device.

Specifications:

- SoC: MediaTek MT7621AT
- RAM: DDR3 512 MB
- Flash: 32 MB
- Six SATA ports for 3.5" Drives
- One SDcard
- One USB 3.0
- Two USB 2.0
- Gigabit Ethernet: Three Ports
- UART 3.5mm Audio Jack or 3 pin header - 57600 8N1
- Three GPIOs available on a pin header

Flash instructions:

The GnuBee Personal Cloud Two ships with libreCMC installed.
libreCMC is a Free Software Foundation approved fork of LEDE/OpenWrt.
As such one can upgrade using the webinterface or sysupgrade.

Das U-Boot has multiple options for recovery or updates including :

- USB
- http
- tftp

Errata:
- While there are three ethernet ports, the third requires support for
  the second GMAC. This will come in kernel 4.14.
- The first hard drive slot has a clearance issue with the two fan
  headers. Workaround is to pull the headers out and connect the pins to
  jumper wires.
- Using this device as a NAS is problematic with the 4.9 kernel as many
  /dev/sdX reads throw silent errors. The current theory behind this is
  some kind of unhandled DMA mapping error in the kernel. This is not an
  issue with kernel 4.4.

Signed-off-by: L. D. Pinney <ldpinney@gmail.com>
Signed-off-by: Rosen Penev <rosenp@gmail.com>

3 files changed, 11 insertions, 0 deletions

diff --git a/target/linux/ramips/base-files/etc/board.d/01_leds b/target/linux/ramips/base-files/etc/board.d/01_leds
index 677bf95..573dd31 100755
--- a/target/linux/ramips/base-files/etc/board.d/01_leds
+++ b/target/linux/ramips/base-files/etc/board.d/01_leds
@@ -191,6 +191,12 @@ gb-pc1)
 	ucidef_set_led_switch "lan1" "lan1" "$boardname:green:lan1" "switch0" "0x01"
 	ucidef_set_led_switch "lan2" "lan2" "$boardname:green:lan2" "switch0" "0x10"
 	;;
+gb-pc2)
+	ucidef_set_led_switch "lan" "lan" "$board:green:lan" "switch0" "0x01"
+	ucidef_set_led_switch "wan" "wan" "$board:green:wan" "switch0" "0x10"
+	ucidef_set_led_netdev "eth1-g" "eth1-g" "$board:green:eth1-g" "eth1"
+	ucidef_set_led_netdev "eth1-y" "eth1-y" "$board:green:eth1-y" "eth1"
+	;;
 gl-mt300a|\
 gl-mt300n|\
 gl-mt750)
diff --git a/target/linux/ramips/base-files/etc/board.d/02_network b/target/linux/ramips/base-files/etc/board.d/02_network
index d064bfe..1ccff89 100755
--- a/target/linux/ramips/base-files/etc/board.d/02_network
+++ b/target/linux/ramips/base-files/etc/board.d/02_network
@@ -206,6 +206,10 @@ ramips_setup_interfaces()
 		ucidef_add_switch "switch0" \
 			"0:lan" "4:lan" "6@eth0"
 		;;
+	gb-pc2)
+		ucidef_add_switch "switch0" \
+			"4:lan" "0:wan" "6@eth0"
+		;;
 	gl-mt300n-v2)
 		ucidef_add_switch "switch0" \
 			"1:lan" "0:wan" "6@eth0"
diff --git a/target/linux/ramips/base-files/etc/diag.sh b/target/linux/ramips/base-files/etc/diag.sh
index 6b11fb2..e38311d 100644
--- a/target/linux/ramips/base-files/etc/diag.sh
+++ b/target/linux/ramips/base-files/etc/diag.sh
@@ -91,6 +91,7 @@ get_status_led() {
 	dir-620-d1|\
 	dwr-512-b|\
 	gb-pc1|\
+	gb-pc2|\
 	hpm|\
 	hw550-3g|\
 	mac1200rv2|\