Please don't change subject matter without changing subject line, and please open a new thread when asking a new question.
> 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. This is typical. You'll find quite a lot of examples. > addr=ioremap(base_addr,size); // Remap to Mem mapped Yes. > out_8(addr) and in_8(addr); It should be right, although __raw_readb() and __raw_writeb() may suffice for you. Please check the comments in <asm/io.h>. It may also happen that you need to read/write 32 bits instead of 8, but this depends on your specific hardware. /alessandro _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
