1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/*
 3 *	include/asm-mips/mach-tx49xx/ioremap.h
 4 */
 5#ifndef __ASM_MACH_TX49XX_IOREMAP_H
 6#define __ASM_MACH_TX49XX_IOREMAP_H
 7
 8#include <linux/types.h>
 9
10/*
11 * Allow physical addresses to be fixed up to help peripherals located
12 * outside the low 32-bit range -- generic pass-through version.
13 */
14static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
15{
16	return phys_addr;
17}
18
19static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
20	unsigned long flags)
21{
22#ifdef CONFIG_64BIT
23#define TXX9_DIRECTMAP_BASE	0xfff000000ul
24#else
25#define TXX9_DIRECTMAP_BASE	0xff000000ul
26#endif
27	if (offset >= TXX9_DIRECTMAP_BASE &&
28	    offset < TXX9_DIRECTMAP_BASE + 0x400000)
29		return (void __iomem *)(unsigned long)(int)offset;
30	return NULL;
31}
32
33static inline int plat_iounmap(const volatile void __iomem *addr)
34{
35	return (unsigned long)addr >=
36		(unsigned long)(int)(TXX9_DIRECTMAP_BASE & 0xffffffff);
37}
38
39#endif /* __ASM_MACH_TX49XX_IOREMAP_H */

 1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/*
 3 *	include/asm-mips/mach-tx49xx/ioremap.h
 4 */
 5#ifndef __ASM_MACH_TX49XX_IOREMAP_H
 6#define __ASM_MACH_TX49XX_IOREMAP_H
 7
 8#include <linux/types.h>
 9
 
 
 
 
 
 
 
 
 
10static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
11	unsigned long flags)
12{
13#ifdef CONFIG_64BIT
14#define TXX9_DIRECTMAP_BASE	0xfff000000ul
15#else
16#define TXX9_DIRECTMAP_BASE	0xff000000ul
17#endif
18	if (offset >= TXX9_DIRECTMAP_BASE &&
19	    offset < TXX9_DIRECTMAP_BASE + 0x400000)
20		return (void __iomem *)(unsigned long)(int)offset;
21	return NULL;
22}
23
24static inline int plat_iounmap(const volatile void __iomem *addr)
25{
26	return (unsigned long)addr >=
27		(unsigned long)(int)(TXX9_DIRECTMAP_BASE & 0xffffffff);
28}
29
30#endif /* __ASM_MACH_TX49XX_IOREMAP_H */