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