[Buildroot] [PATCH 6/9] olimex_a20_olinuxino_micro: update to use genimage
Luca Ceresoli
luca at lucaceresoli.net
Wed Feb 24 22:39:29 UTC 2016
Hi Peter,
On 24/02/2016 21:51, Peter Korsgaard wrote:
>>>>>> "Luca" == Luca Ceresoli <luca at lucaceresoli.net> writes:
>
> > Signed-off-by: Luca Ceresoli <luca at lucaceresoli.net>
> > ---
> > board/olimex/a20_olinuxino/genimage.cfg | 16 ++++++++++++++++
> > board/olimex/a20_olinuxino/post-image.sh | 16 ++++++++++++++++
> > board/olimex/a20_olinuxino/readme.txt | 17 +++++++++++++++--
> > configs/olimex_a20_olinuxino_micro_defconfig | 2 ++
> > 4 files changed, 49 insertions(+), 2 deletions(-)
> > create mode 100644 board/olimex/a20_olinuxino/genimage.cfg
> > create mode 100755 board/olimex/a20_olinuxino/post-image.sh
>
> > diff --git a/board/olimex/a20_olinuxino/genimage.cfg b/board/olimex/a20_olinuxino/genimage.cfg
> > new file mode 100644
> > index 000000000000..8ea24ccab8f3
> > --- /dev/null
> > +++ b/board/olimex/a20_olinuxino/genimage.cfg
> > @@ -0,0 +1,16 @@
> > +image sdcard.img {
> > + hdimage {
> > + }
> > +
> > + partition u-boot {
> > + in-partition-table = "no"
> > + image = "u-boot-sunxi-with-spl.bin"
> > + offset = 8192
> > + }
> > +
> > + partition rootfs {
> > + partition-type = 0x83
> > + image = "rootfs.ext4"
> > + size = 512M
> > + }
> > +}
>
> What about the dtb file? The other Allwinner based boards store this in
> a first vfat partition.
U-Boot grabs it from the /boot directory on the ext4 partition:
$ cat board/olimex/a20_olinuxino/boot.cmd
setenv bootargs console=ttyS0,115200 root=/dev/mmcblk0p1 rootwait panic=10 ${extra}
ext4load mmc 0 0x49000000 /boot/${fdtfile}
ext4load mmc 0 0x46000000 /boot/zImage
env set fdt_high ffffffff
bootz 0x46000000 - 0x49000000
$
This behaviour has always been in place for the A20 OLinuXino series.
This patch does not change how these boards boot, it just automates
the manual writing instructions with genimage.
--
Luca
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