[U-Boot] [RFC] Add 64-bit data support for memory commands

[York Sun]

On 02/12/2014 02:11 PM, Wolfgang Denk wrote:
> Dear York Sun,
> 
> In message <1392240023-25205-1-git-send-email-yorksun at freescale.com> you wrote:
>> For aarch64, unsigned long is 64-bit data. Memory commands should be fixed
>> with u32 for 32-bit address access. A double word data size is added to
>> support 64-bit data.
>>
>> Signed-off-by: York Sun <yorksun at freescale.com>
> 
> Can you please make all this code conditional for 64 bit architectures
> only, so that 32 bit systems do not suffer from the increased code
> size?
> 

I should point out the main reason of this patch is to fix the wrong size of
ulong, used in many places of cmd_mem.c. I can leave out the support of 64-bit
data. I don't see how useful it is.

York