[U-Boot] common: Fix source command on 64-bit architectures

[Tom Rini]

On Fri, Mar 20, 2015 at 12:53:42PM +0100, Thierry Reding wrote:

> From: Thierry Reding <treding at nvidia.com>
> 
> The source command uses an unsigned long to iterate over the 32-bit
> lengths array contained in the legacy image format. On architectures
> where unsigned long is 64-bit this fails to find the correct entry
> point of a script.
> 
> Cc: Tom Rini <trini at konsulko.com>
> Signed-off-by: Thierry Reding <treding at nvidia.com>
> ---
>  common/cmd_source.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/common/cmd_source.c b/common/cmd_source.c
> index 6881bc9ddd33..5f550a525430 100644
> --- a/common/cmd_source.c
> +++ b/common/cmd_source.c
> @@ -32,7 +32,7 @@ source (ulong addr, const char *fit_uname)
>  #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
>  	const image_header_t *hdr;
>  #endif
> -	ulong		*data;
> +	u32		*data;
>  	int		verify;
>  	void *buf;
>  #if defined(CONFIG_FIT)
> @@ -73,7 +73,7 @@ source (ulong addr, const char *fit_uname)
>  		}
>  
>  		/* get length of script */
> -		data = (ulong *)image_get_data (hdr);
> +		data = (u32 *)image_get_data (hdr);
>  
>  		if ((len = uimage_to_cpu (*data)) == 0) {
>  			puts ("Empty Script\n");

On PowerPC this causes:
   powerpc:  +   T1042RDB_PI
+(T1042RDB_PI)    data = (ulong *)fit_data;
+(T1042RDB_PI)         ^
w+(T1042RDB_PI) ../common/cmd_source.c: In function 'source':
w+(T1042RDB_PI) ../common/cmd_source.c:130:8: warning: assignment from incompatible pointer type [enabled by default]

(and of course a number of similar boards).

-- 
Tom
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