[Buildroot] [PATCH 1/3 v2] uboot: Add support for U-Boot SPL

[Arnout Vandecappelle <arnout@mind.be>]

On Wednesday 15 February 2012 23:04:13 Nicolas Dechesne wrote:
> SPL is a first stage bootloader. On pandaboard it supercedes x-loader,
> and should now be used.
> 
> This patch ensures that either SPL or xloader can be selected
> 
> Signed-off-by: Nicolas Dechesne <n-dechesne@ti.com>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

> ---
>  boot/uboot/Config.in |    6 ++++++
>  boot/uboot/uboot.mk  |    2 ++
>  2 files changed, 8 insertions(+), 0 deletions(-)
> 
> diff --git a/boot/uboot/Config.in b/boot/uboot/Config.in
> index c8db9fb..3661407 100644
> --- a/boot/uboot/Config.in
> +++ b/boot/uboot/Config.in
> @@ -137,4 +137,10 @@ config BR2_TARGET_UBOOT_ETH1ADDR
>  
>  endif # BR2_TARGET_UBOOT_NETWORK
>  
> +config BR2_TARGET_UBOOT_SPL
> +	bool "U-Boot SPL support"
> +	depends on !BR2_TARGET_XLOADER
> +	help
> +	  Enable the U-Boot SPL support

 The help text could be a bit more verbose.  E.g. explain what SPL stands
for.  At least mention that the SPL binary is called MLO (the logic of
which escapes me :-)

> +
>  endif # BR2_TARGET_UBOOT
> diff --git a/boot/uboot/uboot.mk b/boot/uboot/uboot.mk
> index db9de8d..41745c9 100644
> --- a/boot/uboot/uboot.mk
> +++ b/boot/uboot/uboot.mk
> @@ -88,6 +88,8 @@ endef
>  
>  define UBOOT_INSTALL_IMAGES_CMDS
>  	cp -dpf $(@D)/$(UBOOT_BIN) $(BINARIES_DIR)/
> +	$(if $(BR2_TARGET_UBOOT_SPL),
> +		cp -dpf $(@D)/MLO $(BINARIES_DIR)/)
>  endef

 I didn't know it was possible to split functions over several lines
without \.  Nice to know!

 Regards,
 Arnout

-- 
Arnout Vandecappelle                               arnout at mind be
Senior Embedded Software Architect                 +32-16-286540
Essensium/Mind                                     http://www.mind.be
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