Álvaro Fernández Rojas | 9cc9086 | 2017-04-25 00:39:21 +0200 | [diff] [blame] | 1 | /* |
| 2 | * SPDX-License-Identifier: GPL-2.0 |
| 3 | */ |
| 4 | #ifndef __ASM_MACH_BMIPS_IOREMAP_H |
| 5 | #define __ASM_MACH_BMIPS_IOREMAP_H |
| 6 | |
| 7 | #include <linux/types.h> |
| 8 | |
| 9 | /* |
| 10 | * Allow physical addresses to be fixed up to help peripherals located |
| 11 | * outside the low 32-bit range -- generic pass-through version. |
| 12 | */ |
| 13 | static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, |
| 14 | phys_addr_t size) |
| 15 | { |
| 16 | return phys_addr; |
| 17 | } |
| 18 | |
| 19 | static inline int is_bmips_internal_registers(phys_addr_t offset) |
| 20 | { |
| 21 | #if defined(CONFIG_SOC_BMIPS_BCM6358) |
| 22 | if (offset >= 0xfffe0000) |
| 23 | return 1; |
| 24 | #endif |
| 25 | |
| 26 | return 0; |
| 27 | } |
| 28 | |
| 29 | static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size, |
| 30 | unsigned long flags) |
| 31 | { |
| 32 | if (is_bmips_internal_registers(offset)) |
| 33 | return (void __iomem *)offset; |
| 34 | |
| 35 | return NULL; |
| 36 | } |
| 37 | |
| 38 | static inline int plat_iounmap(const volatile void __iomem *addr) |
| 39 | { |
| 40 | return is_bmips_internal_registers((unsigned long)addr); |
| 41 | } |
| 42 | |
| 43 | #define _page_cachable_default _CACHE_CACHABLE_NONCOHERENT |
| 44 | |
| 45 | #endif /* __ASM_MACH_BMIPS_IOREMAP_H */ |