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 phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size) 8 { 9 return phys_addr; 10 } 11 12 static inline int is_bcm63xx_internal_registers(phys_addr_t offset) 13 { 14 switch (bcm63xx_get_cpu_id()) { 15 case BCM3368_CPU_ID: 16 if (offset >= 0xfff80000) 17 return 1; 18 break; 19 case BCM6338_CPU_ID: 20 case BCM6345_CPU_ID: 21 case BCM6348_CPU_ID: 22 case BCM6358_CPU_ID: 23 if (offset >= 0xfff00000) 24 return 1; 25 break; 26 case BCM6328_CPU_ID: 27 case BCM6362_CPU_ID: 28 case BCM6368_CPU_ID: 29 if (offset >= 0xb0000000 && offset < 0xb1000000) 30 return 1; 31 break; 32 } 33 return 0; 34 } 35 36 static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size, 37 unsigned long flags) 38 { 39 if (is_bcm63xx_internal_registers(offset)) 40 return (void __iomem *)offset; 41 return NULL; 42 } 43 44 static inline int plat_iounmap(const volatile void __iomem *addr) 45 { 46 return is_bcm63xx_internal_registers((unsigned long)addr); 47 } 48 49 #endif /* BCM63XX_IOREMAP_H_ */ 50