diff options
author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2005-11-30 05:57:28 (GMT) |
---|---|---|
committer | Paul Mackerras <paulus@samba.org> | 2006-01-09 03:51:26 (GMT) |
commit | d2dd482bc17c3bc240045f80a7c4b4d5cea5e29c (patch) | |
tree | 9c40a9ab9a04839f2d578f9d47985b399074ce58 /include | |
parent | bb6b9b28d6847bc71f910e2e82c9040ff4b97ec0 (diff) | |
download | linux-fsl-qoriq-d2dd482bc17c3bc240045f80a7c4b4d5cea5e29c.tar.xz |
[PATCH] powerpc: Update OF address parsers
This updates the OF address parsers to return the IO flags
indicating the type of address obtained. It also adds a PCI
call for converting physical addresses that hit IO space into
into IO tokens, and add routines that return the translated
addresses into struct resource
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include')
-rw-r--r-- | include/asm-powerpc/pci-bridge.h | 9 | ||||
-rw-r--r-- | include/asm-powerpc/prom.h | 28 | ||||
-rw-r--r-- | include/asm-ppc/pci-bridge.h | 9 | ||||
-rw-r--r-- | include/asm-ppc/prom.h | 28 |
4 files changed, 68 insertions, 6 deletions
diff --git a/include/asm-powerpc/pci-bridge.h b/include/asm-powerpc/pci-bridge.h index 00d2151..01132bb 100644 --- a/include/asm-powerpc/pci-bridge.h +++ b/include/asm-powerpc/pci-bridge.h @@ -156,6 +156,15 @@ extern struct pci_controller * pcibios_alloc_controller(struct device_node *dev); extern void pcibios_free_controller(struct pci_controller *phb); +#ifdef CONFIG_PCI +extern unsigned int pci_address_to_pio(phys_addr_t address); +#else +static inline unsigned int pci_address_to_pio(phys_addr_t address) +{ + return (unsigned int)-1; +} +#endif + /* Return values for ppc_md.pci_probe_mode function */ #define PCI_PROBE_NONE -1 /* Don't look at this bus at all */ #define PCI_PROBE_NORMAL 0 /* Do normal PCI probing */ diff --git a/include/asm-powerpc/prom.h b/include/asm-powerpc/prom.h index fb732c9..73d27ba 100644 --- a/include/asm-powerpc/prom.h +++ b/include/asm-powerpc/prom.h @@ -223,14 +223,36 @@ extern struct resource *request_OF_resource(struct device_node* node, int index, const char* name_postfix); extern int release_OF_resource(struct device_node* node, int index); + /* - * 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 /* __KERNEL__ */ #endif /* _POWERPC_PROM_H */ diff --git a/include/asm-ppc/pci-bridge.h b/include/asm-ppc/pci-bridge.h index e58c78f..95672dd 100644 --- a/include/asm-ppc/pci-bridge.h +++ b/include/asm-ppc/pci-bridge.h @@ -137,5 +137,14 @@ static inline unsigned char bridge_swizzle(unsigned char pin, */ extern int pciauto_bus_scan(struct pci_controller *, int); +#ifdef CONFIG_PCI +extern unsigned int pci_address_to_pio(phys_addr_t address); +#else +static inline unsigned int pci_address_to_pio(phys_addr_t address) +{ + return (unsigned int)-1; +} +#endif + #endif #endif /* __KERNEL__ */ diff --git a/include/asm-ppc/prom.h b/include/asm-ppc/prom.h index a10a2d6..eb317a0 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 */ |