1 /*
2  * Copyright (c) 2021 Synopsys.
3  *
4  * SPDX-License-Identifier: Apache-2.0
5  */
6 
7 #ifndef ZEPHYR_INCLUDE_ARCH_ARC_SYS_IO_COMMON_H_
8 #define ZEPHYR_INCLUDE_ARCH_ARC_SYS_IO_COMMON_H_
9 
10 #ifndef _ASMLANGUAGE
11 
12 #include <zephyr/toolchain.h>
13 #include <zephyr/sys/sys_io.h>
14 #include <zephyr/arch/arc/v2/aux_regs.h>
15 
16 #include <zephyr/types.h>
17 #include <stddef.h>
18 
19 #ifdef __cplusplus
20 extern "C" {
21 #endif
22 
sys_read8(mem_addr_t addr)23 static ALWAYS_INLINE uint8_t sys_read8(mem_addr_t addr)
24 {
25 	uint8_t value;
26 
27 	compiler_barrier();
28 	value = *(volatile uint8_t *)addr;
29 	compiler_barrier();
30 
31 	return value;
32 }
33 
sys_write8(uint8_t data,mem_addr_t addr)34 static ALWAYS_INLINE void sys_write8(uint8_t data, mem_addr_t addr)
35 {
36 	compiler_barrier();
37 	*(volatile uint8_t *)addr = data;
38 	compiler_barrier();
39 }
40 
sys_read16(mem_addr_t addr)41 static ALWAYS_INLINE uint16_t sys_read16(mem_addr_t addr)
42 {
43 	uint16_t value;
44 
45 	compiler_barrier();
46 	value = *(volatile uint16_t *)addr;
47 	compiler_barrier();
48 
49 	return value;
50 }
51 
sys_write16(uint16_t data,mem_addr_t addr)52 static ALWAYS_INLINE void sys_write16(uint16_t data, mem_addr_t addr)
53 {
54 	compiler_barrier();
55 	*(volatile uint16_t *)addr = data;
56 	compiler_barrier();
57 }
58 
sys_read32(mem_addr_t addr)59 static ALWAYS_INLINE uint32_t sys_read32(mem_addr_t addr)
60 {
61 	uint32_t value;
62 
63 	compiler_barrier();
64 	value = *(volatile uint32_t *)addr;
65 	compiler_barrier();
66 
67 	return value;
68 }
69 
sys_write32(uint32_t data,mem_addr_t addr)70 static ALWAYS_INLINE void sys_write32(uint32_t data, mem_addr_t addr)
71 {
72 	compiler_barrier();
73 	*(volatile uint32_t *)addr = data;
74 	compiler_barrier();
75 }
76 
77 #ifdef __cplusplus
78 }
79 #endif
80 
81 #endif /* _ASMLANGUAGE */
82 
83 #endif /* ZEPHYR_INCLUDE_ARCH_ARC_SYS_IO_COMMON_H_ */
84