[U-Boot] [RFC] tiny-printf: Add support for %p format

[Vignesh R <vigneshr@ti.com>]

On 4/7/2017 8:40 PM, Tom Rini wrote:
> On Fri, Apr 07, 2017 at 03:20:34PM +0530, Vignesh R wrote:
> 
>> Add support for %p, %pa[p], %pM, %pm and %pI4 formats to tiny-printf.
>> %pM and %pI4 are widely used by SPL networking stack and is required if
>> networking support is desired in SPL.
>>
>> Before this patch:
>> $ size spl/u-boot-spl
>>    text	   data	    bss	    dec	    hex	filename
>>   99325	   4899	 218584	 322808	  4ecf8	spl/u-boot-spl
>>
>> After this patch (with CONFIG_SPL_NET_SUPPORT):
>> $ size spl/u-boot-spl
>>    text	   data	    bss	    dec	    hex	filename
>>   99714	   4899	 218584	 323197	  4ee7d	spl/u-boot-spl
>>
>> So, this patch adds ~390 bytes to code size.
>>
>> If CONFIG_SPL_NET_SUPPORT is not enabled then only %p, %pa, %pap are
>> supported, this adds ~90 bytes to code size.
> 
> Why do we need %p/%pa/%pap?  I'm fine with adding %pM/%pm/%pI4 under
> SPL_NET_SUPPORT as you've done.
> 

Ok, I can drop support for %p/%pa/%pap. Its just that, I see debug()
prints in SPL code that use them. If the agreement is not to worry them,
I am fine with it.