[Buildroot] [PATCH] Add pandaboard support
trem
tremyfr at yahoo.fr
Sun May 1 22:14:37 UTC 2011
Hi,
All this work is based on this tutorial : http://www.elinux.org/Panda_How_to_kernel_new
On 26/04/11 15:13, Peter Korsgaard wrote:
>>>>>> "Philippe" == Philippe Reynes<tremyfr at yahoo.fr> writes:
> Hi,
>
> Thanks, see below for a few comments.
>
> Philippe> Signed-off-by: Philippe Reynes<tremyfr at yahoo.fr>
> Philippe> ---
> Philippe> .../u-boot-2010.12-fix-tty-on-pandaboard.patch | 13 +++++++++++++
> Philippe> configs/omap4_panda_config | 14 ++++++++++++++
> Philippe> 2 files changed, 27 insertions(+), 0 deletions(-)
> Philippe> create mode 100644 board/arm/pandaboard/u-boot-patches/u-boot-2010.12-fix-tty-on-pandaboard.patch
> Philippe> create mode 100644 configs/omap4_panda_config
>
> Philippe> diff --git a/board/arm/pandaboard/u-boot-patches/u-boot-2010.12-fix-tty-on-pandaboard.patch b/board/arm/pandaboard/u-boot-patches/u-boot-2010.12-fix-tty-on-pandaboard.patch
> Philippe> new file mode 100644
> Philippe> index 0000000..0233460
> Philippe> --- /dev/null
> Philippe> +++ b/board/arm/pandaboard/u-boot-patches/u-boot-2010.12-fix-tty-on-pandaboard.patch
> Philippe> @@ -0,0 +1,13 @@
> Philippe> +Index: u-boot-2010.12/include/configs/omap4_panda.h
> Philippe> +===================================================================
> Philippe> +--- u-boot-2010.12.orig/include/configs/omap4_panda.h 2010-12-22 20:22:14.000000000 +0100
> Philippe> ++++ u-boot-2010.12/include/configs/omap4_panda.h 2011-04-16 15:51:07.000000000 +0200
> Philippe> +@@ -148,7 +148,7 @@
> Philippe> +
> Philippe> + #define CONFIG_EXTRA_ENV_SETTINGS \
> Philippe> + "loadaddr=0x82000000\0" \
> Philippe> +- "console=ttyS2,115200n8\0" \
> Philippe> ++ "console=ttyO2,115200n8\0" \
>
> Please document and sign-off-by on patches (using git style). Why is
> this needed, is it going upstream?
>
As it's based on a well known tutorial, I've supposed that it's already known by upstream project.
And I've done a quickly patch and I wait that upstream u-boot report this change.
I've done a new release of this patch in git format.
> Philippe> +++ b/configs/omap4_panda_config
> Philippe> @@ -0,0 +1,14 @@
> Philippe> +BR2_arm=y
> Philippe> +BR2_SOURCEFORGE_MIRROR="easynews"
>
> The custom sf.net mirror shouldn't be part of this defconfig.
>
>
yes, I remove it in the new defconfig.
> Philippe> +BR2_TOOLCHAIN_EXTERNAL=y
>
> Why an external toolchain?
>
>
simply because it's was faster to compile.
> Philippe> +BR2_TARGET_GENERIC_GETTY=y
> Philippe> +BR2_TARGET_GENERIC_GETTY_PORT="ttyO2"
> Philippe> +BR2_PACKAGE_UDEV=y
>
> Why udev?
>
It's requested by the pandaboard (see the link at the beginning of the answer).
> Philippe> +BR2_TARGET_UBOOT=y
> Philippe> +BR2_TARGET_UBOOT_BOARDNAME="omap4_panda"
> Philippe> +BR2_TARGET_UBOOT_CUSTOM_PATCH_DIR="board/arm/pandaboard/u-boot-patches/"
> Philippe> +# BR2_TARGET_UBOOT_NETWORK is not set
> Philippe> +BR2_TARGET_XLOADER=y
> Philippe> +BR2_TARGET_XLOADER_BOARDNAME="omap4430panda"
>
> We don't have an xloader package in BR yet. I haven't followed
> pandaboard development recently - Has xloader development stabilized,
> and is there a single well-defined upstream?
>
I've sent a patch to add x-loader, thomas has replied.
This patch (pandaboard support) depends on the former one (x-loader support).
I send a new release of the patch for the pandaboard support.
Regards,
Philippe
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