diff options
Diffstat (limited to 'include/asm-ppc/prom.h')
| -rw-r--r-- | include/asm-ppc/prom.h | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/include/asm-ppc/prom.h b/include/asm-ppc/prom.h index a10a2d64b30..eb317a0806e 100644 --- a/include/asm-ppc/prom.h +++ b/include/asm-ppc/prom.h @@ -138,12 +138,34 @@ extern unsigned long sub_reloc_offset(unsigned long); /* - * Address translation function(s) + * OF address retreival & translation + */ + + +/* Translate an OF address block into a CPU physical address */ #define OF_BAD_ADDR ((u64)-1) extern u64 of_translate_address(struct device_node *np, u32 *addr); -extern u32 *of_get_address(struct device_node *dev, int index, u64 *size); -extern u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size); + +/* Extract an address from a device, returns the region size and + * the address space flags too. The PCI version uses a BAR number + * instead of an absolute index + */ +extern u32 *of_get_address(struct device_node *dev, int index, + u64 *size, unsigned int *flags); +extern u32 *of_get_pci_address(struct device_node *dev, int bar_no, + u64 *size, unsigned int *flags); + +/* Get an address as a resource. Note that if your address is + * a PIO address, the conversion will fail if the physical address + * can't be internally converted to an IO token with + * pci_address_to_pio(), that is because it's either called to early + * or it can't be matched to any host bridge IO space + */ +extern int of_address_to_resource(struct device_node *dev, int index, + struct resource *r); +extern int of_pci_address_to_resource(struct device_node *dev, int bar, + struct resource *r); #endif /* _PPC_PROM_H */ |