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| author | Ralf Baechle <ralf@linux-mips.org> | 2012-04-30 11:32:58 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2012-05-15 17:49:19 +0200 |
| commit | 0a4c531c2124cbb700484787327c516abbd76e70 (patch) | |
| tree | 0e83fa3e46661acbafa682cd55d4a158363b4e3c /arch/mips/include/asm/prom.h | |
| parent | MIPS: pci: parse memory ranges from devicetree (diff) | |
| download | linux-0a4c531c2124cbb700484787327c516abbd76e70.tar.xz linux-0a4c531c2124cbb700484787327c516abbd76e70.zip | |
MIPS: Provide pci_address_to_pio.
Without I/O ports won't work.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3697/
Diffstat (limited to 'arch/mips/include/asm/prom.h')
| -rw-r--r-- | arch/mips/include/asm/prom.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/mips/include/asm/prom.h b/arch/mips/include/asm/prom.h index 7a6e82ef449b..40ed25952e6b 100644 --- a/arch/mips/include/asm/prom.h +++ b/arch/mips/include/asm/prom.h @@ -12,6 +12,9 @@ #define __ASM_PROM_H #ifdef CONFIG_OF +#include <linux/bug.h> +#include <linux/io.h> +#include <linux/types.h> #include <asm/bootinfo.h> extern int early_init_dt_scan_memory_arch(unsigned long node, @@ -21,6 +24,18 @@ extern int reserve_mem_mach(unsigned long addr, unsigned long size); extern void free_mem_mach(unsigned long addr, unsigned long size); extern void device_tree_init(void); + +static inline unsigned long pci_address_to_pio(phys_addr_t address) +{ + /* + * The ioport address can be directly used by inX() / outX() + */ + BUG_ON(address > IO_SPACE_LIMIT); + + return (unsigned long) address; +} +#define pci_address_to_pio pci_address_to_pio + #else /* CONFIG_OF */ static inline void device_tree_init(void) { } #endif /* CONFIG_OF */ |