How to do IO mapped Implimentation ???

Misbah khan misbah_khan at engineer.com
Mon Dec 31 21:02:25 EST 2007


I have used in_be32() and out_be32() for ppc8248 in one of my driver for FPGA
in which the fpga memory is mapped here it is Io mapped thats the only
difference ....remapping and using in_8() and out_8() will it work for
BigEndian arch ????

-----Misbah <><


Misbah khan wrote:
> 
> Hi all...
> 
> I am writing a driver in which device port is mapped to CPLD and 8 bit
> data bus is directly connected from processor to CPLD. Read write on CPLD
> memory mapped (buffer/register) is required to control the device. This is
> now IO mapped to processor.
> 
> I need to know whether i am right if i impliment like this :-
>          addr=ioremap(base_addr);          // Remap to Mem mapped address
>          outb(addr) and inb(addr);
> 
> Please suggest me if i am wrong or there could be better solution to this
> .
> 
> -----Misbah <><
>          
> 

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