| #include <linux/kernel.h> |
| #include <linux/string.h> |
| #include <linux/ioport.h> |
| #include <linux/etherdevice.h> |
| #include <linux/of_address.h> |
| void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop, |
| unsigned long *busno, unsigned long *phys, unsigned long *size) |
| const unsigned char *prop; |
| dma_window = dma_window_prop; |
| /* busno is always one cell */ |
| *busno = *(dma_window++); |
| prop = of_get_property(dn, "ibm,#dma-address-cells", NULL); |
| prop = of_get_property(dn, "#address-cells", NULL); |
| cells = prop ? *(u32 *)prop : of_n_addr_cells(dn); |
| *phys = of_read_number(dma_window, cells); |
| prop = of_get_property(dn, "ibm,#dma-size-cells", NULL); |
| cells = prop ? *(u32 *)prop : of_n_size_cells(dn); |
| *size = of_read_number(dma_window, cells); |