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 */ 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 #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 33 static 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 */ 40