Name
ioremap —
map bus memory into CPU space
Synopsis
void __iomem * ioremap (unsigned long offset, unsigned long size);
Arguments
offset
bus address of the memory
size
size of the resource to map
Description
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.