[PATCH 1/2] Add support for kernel and device tree images stored in a partition

Belisko Marek marek.belisko at gmail.com
Mon Jul 2 13:30:20 EDT 2012


On Mon, Jul 2, 2012 at 4:14 PM, Maxime Ripard
<maxime.ripard at free-electrons.com> wrote:
> It is a quite common setup to have a partition with all you need to boot
> from the bootloader, ie the kernel image, the device tree blob, etc.
>
> This patch introduces a new "file" location for these two images, which
> uses in turn the *_part and the new *_part_type variable specifying the
> fs type used by mount.
>
> Signed-off-by: Maxime Ripard <maxime.ripard at free-electrons.com>
> Cc: Brian Lilly <brian at crystalfontz.com>
> ---
>  defaultenv/bin/boot |   12 ++++++++++++
>  1 file changed, 12 insertions(+)
>
> diff --git a/defaultenv/bin/boot b/defaultenv/bin/boot
> index 61b893a..26360ed 100644
> --- a/defaultenv/bin/boot
> +++ b/defaultenv/bin/boot
> @@ -114,6 +114,12 @@ elif [ x$kernel_loc = xnand ]; then
>         kdev="/dev/nand0.kernel.bb"
>  elif [ x$kernel_loc = xdisk ]; then
>         kdev="/dev/$kernel_part"
> +elif [ x$kernel_loc = xfile ]; then
> +       if [ ! -d $kernel_part ]; then
> +               mkdir $kernel_part
> +               mount /dev/$kernel_part $kernel_part_type $kernel_part
> +       fi
> +       kdev="$kernel_part/$kernelimage"
This really helps also pandaboard because pandaboard kernel is still
on mmc and I was looking
for such solution (thx). Maybe one remark there should be also update
for file option in _boot_help script.
>  else
>         echo "error: set kernel_loc to one of 'tftp', 'nfs', 'nand', 'nor' or 'disk'"
>         exit 1
> @@ -128,6 +134,12 @@ elif [ x$oftree_loc = xnand ]; then
>         odev="/dev/nand0.oftree.bb"
>  elif [ x$oftree_loc = xdisk ]; then
>         odev="/dev/$oftree_part"
> +elif [ x$oftree_loc = xfile ]; then
> +       if [ ! -d $oftree_part ]; then
> +               mkdir $oftree_loc
> +               mount /dev/$oftree_part $oftree_part_type $oftree_part
> +       fi
> +       odev="$oftree_part/$oftreeimage"
>  fi
>
>  [ x$odev = x ] || bootm_opt="$bootm_opt -o $odev"
> --
> 1.7.9.5
>
>
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regards,

marek

-- 
as simple and primitive as possible
-------------------------------------------------
Marek Belisko - OPEN-NANDRA
Freelance Developer

Ruska Nova Ves 219 | Presov, 08005 Slovak Republic
Tel: +421 915 052 184
skype: marekwhite
twitter: #opennandra
web: http://open-nandra.com



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