Commit 0a4c531c authored by Ralf Baechle's avatar Ralf Baechle
Browse files

MIPS: Provide pci_address_to_pio. 



Without I/O ports won't work.

Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3697/
parent a48cf37a

arch/mips/include/asm/prom.h

+15 −0
Original line number Diff line number Diff line
@@ -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 */