You are absolutly right and i guess it will certainly work for 8248 as well , but the only concern is that " here in mine case the register is not memory mapped where as its IO mapped " we have to consider the memory as IO port and then access the data ....
What you have used i guess its memory mapped ...Is it that accessing memory mapped is same as io mapped ????? ---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 <>< > > -- View this message in context: http://www.nabble.com/How-to-do-IO-mapped-Implimentation-----tp14522349p14557204.html Sent from the linuxppc-embedded mailing list archive at Nabble.com. _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
