1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef BCM63XX_IOREMAP_H_ 3 #define BCM63XX_IOREMAP_H_ 4 5 #include <bcm63xx_cpu.h> 6 7 static inline int is_bcm63xx_internal_registers(phys_addr_t offset) 8 { 9 switch (bcm63xx_get_cpu_id()) { 10 case BCM3368_CPU_ID: 11 if (offset >= 0xfff80000) 12 return 1; 13 break; 14 case BCM6338_CPU_ID: 15 case BCM6345_CPU_ID: 16 case BCM6348_CPU_ID: 17 case BCM6358_CPU_ID: 18 if (offset >= 0xfff00000) 19 return 1; 20 break; 21 case BCM6328_CPU_ID: 22 case BCM6362_CPU_ID: 23 case BCM6368_CPU_ID: 24 if (offset >= 0xb0000000 && offset < 0xb1000000) 25 return 1; 26 break; 27 } 28 return 0; 29 } 30 31 static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size, 32 unsigned long flags) 33 { 34 if (is_bcm63xx_internal_registers(offset)) 35 return (void __iomem *)offset; 36 return NULL; 37 } 38 39 static inline int plat_iounmap(const volatile void __iomem *addr) 40 { 41 return is_bcm63xx_internal_registers((unsigned long)addr); 42 } 43 44 #endif /* BCM63XX_IOREMAP_H_ */ 45