Update buildroot 2020.02.01 (#622)

* Update buildroot 2020.02.01

Signed-off-by: Pascal Vizeli <pvizeli@syshack.ch>

* Fix LN

* Fix wpa

Signed-off-by: Pascal Vizeli <pvizeli@syshack.ch>

* Fix lint

Signed-off-by: Pascal Vizeli <pvizeli@syshack.ch>

* fix-network

Signed-off-by: Pascal Vizeli <pvizeli@syshack.ch>

* Fix script

Signed-off-by: Pascal Vizeli <pvizeli@syshack.ch>

buildroot/board/beagleboneai/genimage.cfg

@@ -0,0 +1,29 @@
+image boot.vfat {
+	vfat {
+		files = {
+			"MLO",
+			"u-boot.img",
+			"zImage",
+			"am5729-beagleboneai.dtb",
+			"uEnv.txt"
+		}
+	}
+	size = 16M
+}
+
+image sdcard.img {
+	hdimage {
+	}
+
+	partition u-boot {
+		partition-type = 0xC
+		bootable = "true"
+                image = "boot.vfat"
+	}
+
+	partition rootfs {
+		partition-type = 0x83
+		image = "rootfs.ext4"
+		size = 512M
+	}
+}

buildroot/board/beagleboneai/post-build.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+BOARD_DIR="$(dirname $0)"
+
+cp board/beagleboneai/uEnv.txt $BINARIES_DIR/uEnv.txt

buildroot/board/beagleboneai/readme.txt

@@ -0,0 +1,28 @@
+Intro
+=====
+
+This configuration will build a basic image for the BeagleBoard.org
+BeagleBone AI. For more details about the board, visit:
+
+https://beagleboard.org/ai
+
+How to build it
+===============
+
+Configure Buildroot:
+
+    $ make beagleboneai_defconfig
+
+Compile everything and build the USB flash drive image:
+
+    $ make
+
+How to write the SD card
+========================
+
+Once the build process is finished you will have an image called "sdcard.img"
+in the output/images/ directory.
+
+Copy the bootable "sdcard.img" onto an SD card with "dd":
+
+  $ sudo dd if=output/images/sdcard.img of=/dev/sdX

buildroot/board/beagleboneai/uEnv.txt

@@ -0,0 +1,6 @@
+bootpart=0:1
+bootdir=/
+bootargs=console=ttyS0,115200n8 root=/dev/mmcblk0p2 ro rootwait
+devtype=mmc
+fdtfile=am5729-beagleboneai.dtb
+uenvcmd=run loadimage; run loadfdt; printenv bootargs; bootz ${loadaddr} - ${fdtaddr}