ioremap9
Map bus memory into cpu space
Usage
void __iomem * ioremap(unsigned long offset, unsigned long size);
Arguments
offset
bus address of the memory
size
size of the resource to map
Overview
ioremap performs a platform specific sequence of operations to make bus memory CPU accessible via the readb/readw/readl/writeb/ writew/writel functions and the other mmio helpers. The returned address is not guaranteed to be usable directly as a virtual address.