ramips: add support for Ubiquiti EdgeRouter X-SFP

This patch adds support for the Ubiquiti EdgeRouter X-SFP and
improves support for the EdgeRouter X (PoE-passthrough).

Specification:
- SoC: MediaTek MT7621AT
- Flash: 256 MiB
- RAM: 265 MiB
- Ethernet: 5 x LAN (1000 Mbps)
- UART: 1 x UART on PCB (3.3V, RX, TX, GND) - 57600 8N1
- EdgeRouter X:
  - 1 x PoE-Passtrough (Eth4)
  - powered by Wallwart or passive PoE
- EdgeRouter X-SFP:
  - 5 x PoE-Out (24V, passive)
  - 1 x SFP (unknown status)
  - powered by Wallwart (24V)

Doesn't work:
* SoC has crypto engine but no open driver.
* SoC has nat acceleration, but no open driver.
* This router has 2MB spi flash soldered in but MT
  nand/spi drivers do not support pin sharing,
  so it is not accessable and disabled. Stock
  firmware could read it and it was empty.

Installation

via vendor firmware:
- build an Initrd-image (> 3MiB) and upload the factory-image
- initrd can have luci-mod-failsafe
- flash final firmware via LuCI / sysupgrade on rebooted system

via TFTP:
- stop uboot into tftp-load into option "1"
- upload factory.bin image

Signed-off-by: Sven Roederer <devel-sven@geroedel.de>

2 files changed, 26 insertions, 0 deletions

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 9dd5823639..3cd7ff6049 100755
--- a/target/linux/ramips/base-files/etc/board.d/02_network
+++ b/target/linux/ramips/base-files/etc/board.d/02_network
@@ -170,6 +170,7 @@ ramips_setup_interfaces()
 	rb750gr3|\
 	rt-n14u|\
 	ubnt-erx|\
+	ubnt-erx-sfp|\
 	ur-326n4g|\
 	wrtnode|\
 	wrtnode2p | \
diff --git a/target/linux/ramips/base-files/etc/board.d/03_gpio_switches b/target/linux/ramips/base-files/etc/board.d/03_gpio_switches
new file mode 100755
index 0000000000..859dfb31f5
--- /dev/null
+++ b/target/linux/ramips/base-files/etc/board.d/03_gpio_switches
@@ -0,0 +1,25 @@
+#!/bin/sh
+
+. /lib/functions/uci-defaults.sh
+. /lib/ramips.sh
+
+board_config_update
+
+board=$(ramips_board_name)
+
+case "$board" in
+ubnt-erx)
+	ucidef_add_gpio_switch "poe_passthrough" "PoE Passthrough" "0"
+	;;
+ubnt-erx-sfp)
+	ucidef_add_gpio_switch "poe_power_port0" "PoE Power Port0" "496"
+	ucidef_add_gpio_switch "poe_power_port1" "PoE Power Port1" "497"
+	ucidef_add_gpio_switch "poe_power_port2" "PoE Power Port2" "498"
+	ucidef_add_gpio_switch "poe_power_port3" "PoE Power Port3" "499"
+	ucidef_add_gpio_switch "poe_power_port4" "PoE Power Port4" "500"
+	;;
+esac
+
+board_config_flush
+
+exit 0