[U-Boot] [PATCH] spl: saveenv: adding saveenv support in SPL

[Tom Rini]

On Tue, Sep 27, 2016 at 12:15:08PM +0530, Ravi Babu wrote:

> By default saveenv option is not supported for SPL. This patch
> enable the support for save environment variable for SPL build.
> 
> Enable save environment support in SPL after setenv. By default
> the saveenv option is not provided in SPL, but some boards need
> this support in 'Falcon' boot, where SPL need to boot from
> different images based on environment variable set by OS. For
> example OS may set "reboot_image" environment variable to
> "recovery" inorder to boot recovery image by SPL. The SPL read
> "reboot_image" and act accordingly and change the reboot_image
> to default mode using setenv and save the environemnt.
[snip]
> diff --git a/drivers/mmc/mmc_private.h b/drivers/mmc/mmc_private.h
> index 49ec022..e0c9849 100644
> --- a/drivers/mmc/mmc_private.h
> +++ b/drivers/mmc/mmc_private.h
> @@ -28,8 +28,7 @@ ulong mmc_bread(struct blk_desc *block_dev, lbaint_t start, lbaint_t blkcnt,
>  		void *dst);
>  #endif
>  
> -#ifndef CONFIG_SPL_BUILD
> -
> +#if !(defined(CONFIG_SPL_BUILD) && !defined(CONFIG_SPL_SAVEENV))
>  unsigned long mmc_berase(struct blk_desc *block_dev, lbaint_t start,
>  			 lbaint_t blkcnt);

The comments in this area are now wrong after this patch so please
update them as part of the patch.  Thanks!

-- 
Tom
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