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
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