[U-Boot] [PATCH] arch-mx6: fix MX6_PAD_DECLARE macro to work with MX6 duallite

[Hannes Schmelzer <hannes@schmelzer.or.at>]

On 07/20/2016 09:30 AM, Stefano Babic wrote:
> Hi Hannes,
Hi Stefano,
> this patch breaks most i.MX6 boards (the not DL) and I revert it. Maybe
> I had to ask better before, anyway:
sorry for inconvenience, i should have done more testing on this.
I just tried to compile several i.mx6 boards and found out that I did 
not covered the MX6S which are in trouble now.
> On 22/06/2016 12:07, Hannes Schmelzer wrote:
>> if we build for an i.mx6 (d)ual(l)ite CONFIC_MX6DL we shall use
>> MX6DL_PAD instead the common MX6_PAD.
>>
>> Signed-off-by: Hannes Schmelzer<oe5hpm@oevsv.at>
>> ---
>>
>>   arch/arm/include/asm/arch-mx6/mx6-pins.h | 4 ++--
>>   1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/arch/arm/include/asm/arch-mx6/mx6-pins.h b/arch/arm/include/asm/arch-mx6/mx6-pins.h
>> index 4b6bb18..3465205 100644
>> --- a/arch/arm/include/asm/arch-mx6/mx6-pins.h
>> +++ b/arch/arm/include/asm/arch-mx6/mx6-pins.h
>> @@ -18,7 +18,7 @@ enum {
>>   #include "mx6q_pins.h"
>>   #undef MX6_PAD_DECL
>>   #define MX6_PAD_DECL(name, pco, mc, mm, sio, si, pc) \
>> -	MX6_PAD_DECLARE(MX6DL_PAD_,name, pco, mc, mm, sio, si, pc),
>> +	MX6_PAD_DECLARE(MX6DL_PAD_, name, pco, mc, mm, sio, si, pc),
>>   #include "mx6dl_pins.h"
>>   };
>>   #elif defined(CONFIG_MX6Q)
>> @@ -30,7 +30,7 @@ enum {
>>   #elif defined(CONFIG_MX6DL) || defined(CONFIG_MX6S)
>>   enum {
>>   #define MX6_PAD_DECL(name, pco, mc, mm, sio, si, pc) \
>> -	MX6_PAD_DECLARE(MX6_PAD_,name, pco, mc, mm, sio, si, pc),
>> +	MX6_PAD_DECLARE(MX6DL_PAD_, name, pco, mc, mm, sio, si, pc),
>>   #include "mx6dl_pins.h"
>>   };
> Can you better explain the problem you had ? The name is not decisive -
> the important thing is that the correct include file with the right
> layout is included, that means mx6dl_pins.h. And this was mainlined
> since a lot of time.
Maybe all the time nobody had to use I2C #4 on an i.mx6 duallite chip, 
doing so i encountered this problem.

The name is decisive for sure, have a closer look to the 
"MX6_PAD_DECLARE" macro,
In conjunction with the correct include file the prefix used to form the 
final register table declaration.

Next the iomux-v3.h is from interest,
the "#define IOMUX_PADS" has dependency on CONFIG_MX6nn, here the 
previous definition out from mx6-pins.h is used.

I will send some V2 to address this topic fully, ok?
> We have several boards with 6DL into mainline, so I am missing which is
> your problem.
>
> Best regards,
> Stefano Babic
cheers,
Hannes