1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef __ASM_MACH_BMIPS_IOREMAP_H 3*4882a593Smuzhiyun #define __ASM_MACH_BMIPS_IOREMAP_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #include <linux/types.h> 6*4882a593Smuzhiyun is_bmips_internal_registers(phys_addr_t offset)7*4882a593Smuzhiyunstatic inline int is_bmips_internal_registers(phys_addr_t offset) 8*4882a593Smuzhiyun { 9*4882a593Smuzhiyun if (offset >= 0xfff80000) 10*4882a593Smuzhiyun return 1; 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun return 0; 13*4882a593Smuzhiyun } 14*4882a593Smuzhiyun plat_ioremap(phys_addr_t offset,unsigned long size,unsigned long flags)15*4882a593Smuzhiyunstatic inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size, 16*4882a593Smuzhiyun unsigned long flags) 17*4882a593Smuzhiyun { 18*4882a593Smuzhiyun if (is_bmips_internal_registers(offset)) 19*4882a593Smuzhiyun return (void __iomem *)offset; 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun return NULL; 22*4882a593Smuzhiyun } 23*4882a593Smuzhiyun plat_iounmap(const volatile void __iomem * addr)24*4882a593Smuzhiyunstatic inline int plat_iounmap(const volatile void __iomem *addr) 25*4882a593Smuzhiyun { 26*4882a593Smuzhiyun return is_bmips_internal_registers((unsigned long)addr); 27*4882a593Smuzhiyun } 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun #endif /* __ASM_MACH_BMIPS_IOREMAP_H */ 30