[Buildroot] [PATCH 1/1] beaglebone: better support for starting and creating images

[Stephan Hoffmann]

Am 14.03.2014 13:13, schrieb Marcin Jabrzyk:
> - Added short readme file with description of first steps how to start.
> - Added uEnv.txt so the board can start from SDCard
> - Added post-image.sh script to copy included uEnv.txt to output/images
>
> Signed-off-by: Marcin Jabrzyk <marcin.jabrzyk at gmail.com>
Tested-by: Stephan Hoffmann <sho at relinux.de>
> ---
The patch still applies to the current HEAD. I tested it with both
BeagleBone and BeagleBoneBlack as described in the readme file.
>  board/beaglebone/post-image.sh |  6 ++++
>  board/beaglebone/readme.txt    | 62 ++++++++++++++++++++++++++++++++++++++++++
>  board/beaglebone/uEnv.txt      |  3 ++
>  configs/beaglebone_defconfig   |  1 +
>  4 files changed, 72 insertions(+)
>  create mode 100755 board/beaglebone/post-image.sh
>  create mode 100644 board/beaglebone/readme.txt
>  create mode 100644 board/beaglebone/uEnv.txt
>
> diff --git a/board/beaglebone/post-image.sh b/board/beaglebone/post-image.sh
> new file mode 100755
> index 0000000..7441d07
> --- /dev/null
> +++ b/board/beaglebone/post-image.sh
> @@ -0,0 +1,6 @@
> +#!/bin/sh
> +# post-image.sh for BeagleBone
> +# 2014, Marcin Jabrzyk <marcin.jabrzyk at gmail.com>
> +
> +# copy the uEnv.txt to the output/images directory
> +cp board/beaglebone/uEnv.txt $BINARIES_DIR/uEnv.txt
> diff --git a/board/beaglebone/readme.txt b/board/beaglebone/readme.txt
> new file mode 100644
> index 0000000..dc44751
> --- /dev/null
> +++ b/board/beaglebone/readme.txt
> @@ -0,0 +1,62 @@
> +BeagleBone
> +
> +Intro
> +=====
> +To be able to use BeagleBone board with the images generated by
> +Buildroot, you have prepare the SDCard.
> +
> +How to build it
> +===============
> +
> +  $ make beaglebone_defconfig
> +
> +Then you can edit the build options using
> +  
> +  $ make menuconfig
> +  
> +Compile all and build rootfs image:
> +  
> +  $ make
> +
> +Result of the build
> +-------------------
> +
> +After building, you should get a tree like this:
> +
> +  output/images/                                                                                                                                                                                   
> +  ├── am335x-boneblack.dtb                                                                                                                                                                         
> +  ├── am335x-bone.dtb
> +  ├── MLO
> +  ├── rootfs.ext2
> +  ├── u-boot.img
> +  ├── uEnv.txt
> +  └── zImage
> +
> +
> +Prepare you SDCard
> +==================
> +
> +You need to prepare first partition in fat32 and marked as bootable,
> +and second where you will write rootfs.
> +
> +Copy the files to boot partition
> +
> +  $ cp MLO u-boot.img zImage uEnv.txt *.dtb /media/zzzzz
> +  
> +where /media/zzzzz is the mount point
> +Then you need to write the rootfs image onto SDCard:
> +
> +  # dd if=rootfs.ext2 of=/dev/xxxxx
> +  
> +where /dev/xxxxx is the second partition. Use:
> +  
> +  # fdisk -l 
> +  
> +to check for correct one.
> +
> +Finish
> +======
> +
> +Unmount all mounted SDCard partitions and insert the card to BeagleBone.
> +Hold the "BOOT" button and apply power. Then release the "BOOT" button. 
> +The output is available on the serial console.
> \ No newline at end of file
> diff --git a/board/beaglebone/uEnv.txt b/board/beaglebone/uEnv.txt
> new file mode 100644
> index 0000000..68d6e23
> --- /dev/null
> +++ b/board/beaglebone/uEnv.txt
> @@ -0,0 +1,3 @@
> +bootpart=0:1
> +bootdir=
> +uenvcmd=run loaduimage;run loadramdisk;run findfdt;run loadfdt;run ramboot 
> diff --git a/configs/beaglebone_defconfig b/configs/beaglebone_defconfig
> index 3181c66..b2052f4 100644
> --- a/configs/beaglebone_defconfig
> +++ b/configs/beaglebone_defconfig
> @@ -8,6 +8,7 @@ BR2_TARGET_GENERIC_HOSTNAME="beaglebone"
>  BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_DEVTMPFS=y
>  BR2_TARGET_GENERIC_GETTY_PORT="ttyO0"
>  # BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW is not set
> +BR2_ROOTFS_POST_IMAGE_SCRIPT="board/beaglebone/post-image.sh"
>  
>  # filesystem
>  BR2_PACKAGE_AM33X_CM3=y