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 static 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 
24 static 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 */
31