[Buildroot] [PATCH] BeagleBoard X15: new board

[Theo Debrouwere <theo.debrouwere@skynet.be>]

>  > diff --git a/board/beagleboardx15/uEnv.txt b/board/beagleboardx15/uEnv.txt
>  > new file mode 100644
>  > index 0000000..0af0eef
>  > --- /dev/null
>  > +++ b/board/beagleboardx15/uEnv.txt
>  > @@ -0,0 +1,9 @@
>  > +# This uEnv.txt file can contain additional environment settings that you
>  > +# want to set in U-Boot at boot time.  This can be simple variables such
>  > +# as the serverip or custom variables.  The format of this file is:
>  > +#    variable=value
>  > +# NOTE: This file will be evaluated after the bootcmd is run and the
>  > +#       bootcmd must be set to load this file if it exists (this is the
>  > +#       default on all newer U-Boot images.  This also means that some
>  > +#       variables such as bootdelay cannot be changed by this file since
>  > +#       it is not evaluated until the bootcmd is run.
> 
> Is this file really needed if it only contains comments?

No, it isn't necessary. I just wanted to provide a sample file on the sd-card
image. Should I remove it?

> 
> > diff --git a/configs/beagleboardx15_defconfig b/configs/beagleboardx15_defconfig
>  > new file mode 100644
>  > index 0000000..17181d9
>  > --- /dev/null
>  > +++ b/configs/beagleboardx15_defconfig
>  > @@ -0,0 +1,33 @@
>  > +BR2_arm=y
>  > +BR2_cortex_a15=y
>  > +BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_4=y
>  > +BR2_TARGET_GENERIC_HOSTNAME="beagleboardx15"
>  > +BR2_TARGET_GENERIC_GETTY_PORT="ttyS2"
> 
> Does the kernel not boot with console=ttyS2,.. ? If so, then the default
> of /dev/console should work as well.
> 


U-boot (both ti's release & mainline) currently contains 'console=ttyO2',
but the kernel 'changes' it to ttyS2.

*snip*
[    0.000772] WARNING: Your 'console=ttyO2' has been replaced by 'ttyS2'
[    0.000779] This ensures that you still see kernel messages. Please
[    0.000784] update your kernel commandline.
*snip*

This can be fixed with this config line, although I can also provide a patch.
Or fix it inside the uEnv.txt

> > +BR2_ROOTFS_POST_IMAGE_SCRIPT="board/beagleboardx15/post-image.sh"
>  > +BR2_LINUX_KERNEL=y
>  > +BR2_LINUX_KERNEL_CUSTOM_GIT=y
>  > +BR2_LINUX_KERNEL_CUSTOM_REPO_URL="git://git.ti.com/processor-sdk/processor-sdk-linux.git"
>  > +BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="db0b54cdadef2d754ef7c2d8dd7300ef085985ef"
>  > +BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
>  > +BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/beagleboardx15/linux-4.4.config"
>  > +BR2_LINUX_KERNEL_DTS_SUPPORT=y
>  > +BR2_LINUX_KERNEL_INTREE_DTS_NAME="am57xx-beagle-x15 am57xx-beagle-x15-revb1 am57xx-evm am57xx-evm-reva3"
>  > +BR2_LINUX_KERNEL_INSTALL_TARGET=y
>  > +BR2_TARGET_ROOTFS_EXT2=y
>  > +BR2_TARGET_ROOTFS_EXT2_4=y
>  > +BR2_TARGET_UBOOT=y
>  > +BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
>  > +BR2_TARGET_UBOOT_CUSTOM_GIT=y
>  > +BR2_TARGET_UBOOT_CUSTOM_REPO_URL="git://git.ti.com/ti-u-boot/ti-u-boot.git"
>  > +BR2_TARGET_UBOOT_CUSTOM_REPO_VERSION="2f757e5b2c6b260c647a8a1bb295537f07c3a8b9"
>  > +BR2_TARGET_UBOOT_BOARD_DEFCONFIG="am57xx_evm"
> 
> Are the custom repos needed? I see that mainline u-boot and Linux
> atleast has "some" support for this defconfig / dts'es.

I haven't checked if mainline has the same level of board support
as TI's trees.

Let me check that.