imx6: add support for GW5907/GW5910/GW5912/GW5913

This patch adds support for GW5907/GW5910/GW5912/GW5913 IMX6 based boards
from the Gateworks Ventana Family[A]:
- backport upstream dt patches from 5.6 to 4.19 and 5.4
- add dtb's to ventana images
- add board-name and network config

A. https://www.gateworks.com/products/imx6-single-board-computer-gateworks-ventana-family

Flashing instructions for Ventana boards:

Using pre-flashed bootloader:
- Use appropriate ubi image depending on board NAND to flash via bootloader:
	openwrt-imx6-ventana-squashfs-nand.ubi - 2KiB page size
	openwrt-imx6-ventana-large-squashfs-nand.ubi - 4KiB page size
	http://trac.gateworks.com/wiki/linux/ubi

Using Gateworks JTAG dongle:
- Use Gateworks mkimage_jtag script to create a JTAG image comprised of
	pre-built bootloader and ubi image:
	http://trac.gateworks.com/wiki/jtag_instructions

Signed-off-by: Tim Harvey <tharvey@gateworks.com>

target/linux/imx6/base-files/etc/board.d/02_network

@@ -13,7 +13,11 @@ case "$board" in
 cubox-i |\
 gw51xx |\
 gw52xx |\
-gw5904)
+gw5904 |\
+gw5907 |\
+gw5910 |\
+gw5912 |\
+gw5913)
 	ucidef_set_interface_lan 'eth0'
 	;;
 gw53xx |\

target/linux/imx6/base-files/lib/imx6.sh

@@ -81,6 +81,26 @@ imx6_board_detect() {
 		name="gw5904"
 		;;
 
+	"Gateworks Ventana i.MX6 DualLite/Solo GW5907" |\
+	"Gateworks Ventana i.MX6 Dual/Quad GW5907")
+		name="gw5907"
+		;;
+
+	"Gateworks Ventana i.MX6 DualLite/Solo GW5910" |\
+	"Gateworks Ventana i.MX6 Dual/Quad GW5910")
+		name="gw5910"
+		;;
+
+	"Gateworks Ventana i.MX6 DualLite/Solo GW5912" |\
+	"Gateworks Ventana i.MX6 Dual/Quad GW5912")
+		name="gw5912"
+		;;
+
+	"Gateworks Ventana i.MX6 DualLite/Solo GW5913" |\
+	"Gateworks Ventana i.MX6 Dual/Quad GW5913")
+		name="gw5913"
+		;;
+
 	"SolidRun Cubox-i Solo/DualLite" |\
 	"SolidRun Cubox-i Dual/Quad")
 		name="cubox-i"

target/linux/imx6/image/Makefile

@@ -143,6 +143,10 @@ define Device/ventana
 	imx6dl-gw552x \
 	imx6dl-gw553x \
 	imx6dl-gw5904 \
+	imx6dl-gw5907 \
+	imx6dl-gw5910 \
+	imx6dl-gw5912 \
+	imx6dl-gw5913 \
 	imx6q-gw51xx \
 	imx6q-gw52xx \
 	imx6q-gw53xx \
@@ -151,7 +155,11 @@ define Device/ventana
 	imx6q-gw551x \
 	imx6q-gw552x \
 	imx6q-gw553x \
-	imx6q-gw5904
+	imx6q-gw5904 \
+	imx6q-gw5907 \
+	imx6q-gw5910 \
+	imx6q-gw5912 \
+	imx6q-gw5913
   DEVICE_PACKAGES := kmod-sky2 kmod-sound-core kmod-sound-soc-imx kmod-sound-soc-imx-sgtl5000 \
 	kmod-can kmod-can-flexcan kmod-can-raw \
 	kmod-hwmon-gsc \