[U-Boot] [PATCH] nitrogen6x : Use generic distro configuration

[Troy Kisky]

On 6/24/2016 8:59 AM, Fabien Lahoudere wrote:
> In order to simplify the use of various images on various media
> for nitrogen6x, the configuration of the board must follow the
> generic distro configuration (doc/README.distro).
> 
> In order to boot your old rootfs, move your kernel and your device
> tree in /boot/. Then create /boot/extlinux/extlinux.conf with for
> example:
> 
> default Buildroot
> 
> label Buildroot
> 	kernel /boot/zImage
> 	append console=ttymxc1,115200 root=/dev/mmcblk0p1 rootwait rw
> 	fdtdir /boot
> 
> Signed-off-by: Fabien Lahoudere <fabien.lahoudere at collabora.co.uk>
...
> +
> diff --git a/include/configs/mx6_common.h b/include/configs/mx6_common.h
> index fb49322..75cbc84 100644
> --- a/include/configs/mx6_common.h
> +++ b/include/configs/mx6_common.h
> +#define CONFIG_EXTRA_ENV_SETTINGS \
> +	"fdtfile=" CONFIG_FDTFILE "\0" \
> +	"fdt_addr_r=" __stringify(CONFIG_FDTADDR) "\0"  \
> +	"fdt_addr=" __stringify(CONFIG_FDTADDR) "\0" \
> +	"kernel_addr_r=" __stringify(CONFIG_LOADADDR) "\0"  \
> +	"pxefile_addr_r=" __stringify(CONFIG_LOADADDR) "\0" \
> +	"scriptaddr=" __stringify(CONFIG_LOADADDR) "\0" \
> +	"ramdisk_addr_r=" __stringify(CONFIG_RAMDISKADDR) "\0" \
> +	"ramdiskaddr=" __stringify(CONFIG_RAMDISKADDR) "\0" \
> +	BOOTENV
> +
> +#endif
> +

This should probably be called something like CONFIG_EXTRA_DEFAULT_ENV_SETTINGS
and the board files could contain

#define CONFIG_EXTRA_ENV_SETTINGS CONFIG_EXTRA_DEFAULT_ENV_SETTINGS \
	"extra=more stuff\0" \


I would not remove any environment variables in this patch except for redundant things.