treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
[sfrench/cifs-2.6.git] / arch / mips / include / asm / mach-tx39xx / ioremap.h
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  *      include/asm-mips/mach-tx39xx/ioremap.h
4  */
5 #ifndef __ASM_MACH_TX39XX_IOREMAP_H
6 #define __ASM_MACH_TX39XX_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  */
14 static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
15 {
16         return phys_addr;
17 }
18
19 static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
20         unsigned long flags)
21 {
22 #define TXX9_DIRECTMAP_BASE     0xff000000ul
23         if (offset >= TXX9_DIRECTMAP_BASE &&
24             offset < TXX9_DIRECTMAP_BASE + 0xff0000)
25                 return (void __iomem *)offset;
26         return NULL;
27 }
28
29 static inline int plat_iounmap(const volatile void __iomem *addr)
30 {
31         return (unsigned long)addr >= TXX9_DIRECTMAP_BASE;
32 }
33
34 #endif /* __ASM_MACH_TX39XX_IOREMAP_H */