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