[Buildroot] [PATCH] board: Add support for Acmesystems Arietta g25
Peter Korsgaard
peter at korsgaard.com
Tue Feb 2 11:20:31 UTC 2016
>>>>> "Angelo" == Angelo Compagnucci <angelo.compagnucci at gmail.com> writes:
> This patch adds a minimal working configuration for
> Acmesystems Arietta g25
> Signed-off-by: Angelo Compagnucci <angelo.compagnucci at gmail.com>
Thanks, see below for a few comments.
> ---
> board/acmesystems/arietta-g25/readme.txt | 50 +++++++++++++++++++++++++
> configs/acmesystems_arietta_g25_128mb_defconfig | 23 ++++++++++++
> configs/acmesystems_arietta_g25_256mb_defconfig | 23 ++++++++++++
> 3 files changed, 96 insertions(+)
> create mode 100644 board/acmesystems/arietta-g25/readme.txt
> create mode 100644 configs/acmesystems_arietta_g25_128mb_defconfig
> create mode 100644 configs/acmesystems_arietta_g25_256mb_defconfig
> diff --git a/board/acmesystems/arietta-g25/readme.txt b/board/acmesystems/arietta-g25/readme.txt
> new file mode 100644
> index 0000000..bccdb61
> --- /dev/null
> +++ b/board/acmesystems/arietta-g25/readme.txt
> @@ -0,0 +1,50 @@
> +Build instructions
> +==================
> +
> +As a regular user configure and then build:
> +
> +$ make acmesystems_arietta_g25_128mb_defconfig (128MB RAM variant)
> + or...
> +$ make acmesystems_arietta_g25_256mb_defconfig (256MB RAM variant)
It's a pity that we need two different configurations when they are so
similar. It's been a few years since I've used at91bootstrap, I take it
that doesn't have any sdram size detection logic like U-Boot has
nowadays? (get_ram_size()).
> +$ make
> +
> +Writing to the MicroSD card
> +===========================
> +
> +You'll need a blank MicroSD (obviously) initialized
> +in a particular way to be able to boot from it.
> +
> +Assuming the card is seen as /dev/sdb in your PC/laptop/other device
> +you'll need to run the following commands as root or via sudo.
> +
> +Make sure all of the card partitions are unmounted before starting.
> +
> +First we'll need to create two partitions:
> +
> +# sfdisk -uM /dev/sdb <<EOF
> +,32,6
> +;
> +EOF
> +
> +Then we'll need to create the empty filesystems:
> +
> +# mkdosfs -n SD_BOOT /dev/sdb1
> +# mkfs.ext4 -L SD_ROOT /dev/sdb2
> +
> +We'll populate the first partition (boot) with the relevant files:
> +
> +# mount /dev/sdb1 /mnt
> +# cp output/images/at91bootstrap.bin /mnt/BOOT.BIN
> +# cp output/images/zImage /mnt
> +# cp output/images/at91-ariag25.dtb /mnt
> +# umount /mnt
> +
> +And the root filesystem afterwards:
> +
> +# mount /dev/sdb2 /mnt
> +# tar -C /mnt output/images/rootfs.tar
> +# umount /mnt
> +
> +You're done, insert the MicroSD card in the slot and enjoy.
Could you convert this to genimage instead of all these manual steps?
Have a look at board/orangepi/orangepipc/genimage.cfg for an example.
Thanks!
--
Bye, Peter Korsgaard
More information about the buildroot
mailing list