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MIPS: Provide pci_address_to_pio.

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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/
This commit is contained in:
Ralf Baechle 2012-04-30 11:32:58 +02:00
parent a48cf37ac8
commit 0a4c531c21
1 changed files with 15 additions and 0 deletions
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15
arch/mips/include/asm/prom.h
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@ -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 */