One thing that is getting confusing to me is that there seems to be many different methods for doing I/O.
There's in_xxx/out_xxx, __raw_readx/__raw_writex and readx/writex. What exactly is the difference between all of these? It looks like the in/out was added recently and is not present in the mips io.h file. In a related case, I run into problems with a number of drivers because they assume that readl/writel can be used to access the PCI BAR address space or that a pointer is a physical address. This is not always the case. For example, on our platform the PCI BAR address space is mapped to different 64-bit address spaces depending on the bus number. It would be very helpful if different macros were used for different I/O devices. For example, one set of macros for accessing PCI BAR address space. -Aaron _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
