| Grant Likely | 6b884a8 | 2010-06-08 07:48:09 -0600 | [diff] [blame^] | 1 | |
| 2 | #include <linux/io.h> |
| 3 | #include <linux/ioport.h> |
| 4 | #include <linux/of_address.h> |
| 5 | |
| 6 | /** |
| 7 | * of_iomap - Maps the memory mapped IO for a given device_node |
| 8 | * @device: the device whose io range will be mapped |
| 9 | * @index: index of the io range |
| 10 | * |
| 11 | * Returns a pointer to the mapped memory |
| 12 | */ |
| 13 | void __iomem *of_iomap(struct device_node *np, int index) |
| 14 | { |
| 15 | struct resource res; |
| 16 | |
| 17 | if (of_address_to_resource(np, index, &res)) |
| 18 | return NULL; |
| 19 | |
| 20 | return ioremap(res.start, 1 + res.end - res.start); |
| 21 | } |
| 22 | EXPORT_SYMBOL(of_iomap); |