1 /*
2  * Copyright 2020-2022 NXP
3  *
4  * SPDX-License-Identifier: BSD-3-Clause
5  */
6 
7 #ifndef IMX_CSU_H
8 #define IMX_CSU_H
9 
10 #include <lib/utils_def.h>
11 
12 #include <platform_def.h>
13 
14 #define CSU_SEC_LEVEL_0		0xff
15 #define CSU_SEC_LEVEL_1		0xbb
16 #define CSU_SEC_LEVEL_2		0x3f
17 #define CSU_SEC_LEVEL_3		0x3b
18 #define CSU_SEC_LEVEL_4		0x33
19 #define CSU_SEC_LEVEL_5		0x22
20 #define CSU_SEC_LEVEL_6		0x03
21 #define CSU_SEC_LEVEL_7		0x0
22 
23 #define SEC_ACCESS		0x0
24 #define NON_SEC_ACCESS		0x1
25 
26 #define LOCKED			0x1
27 #define UNLOCKED		0x0
28 
29 #define CSLx_REG(x)		(IMX_CSU_BASE + ((x) / 2) * 4)
30 #define CSLx_LOCK(x)		((0x1 << (((x) % 2) * 16 + 8)))
31 #define CSLx_CFG(x, n)		((x) << (((n) % 2) * 16))
32 
33 #define CSU_HP_REG(x)		(IMX_CSU_BASE + (((x) / 16) * 4) + 0x200)
34 #define CSU_HP_LOCK(x)		((0x1 << (((x) % 16) * 2 + 1)))
35 #define CSU_HP_CFG(x, n)	((x) << (((n) % 16) * 2))
36 
37 #define CSU_SA_REG(x)		(IMX_CSU_BASE + (((x) / 16) * 4) + 0x218)
38 #define CSU_SA_LOCK(x)		((0x1 << (((x) % 16) * 2 + 1)))
39 #define CSU_SA_CFG(x, n)	((x) << (((n) % 16) * 2))
40 
41 #define CSU_HPCONTROL_REG(x)		(IMX_CSU_BASE + (((x) / 16) * 4) + 0x358)
42 #define CSU_HPCONTROL_LOCK(x)		((0x1 << (((x) % 16) * 2 + 1)))
43 #define CSU_HPCONTROL_CFG(x, n)		((x) << (((n) % 16) * 2))
44 
45 enum csu_cfg_type {
46 	CSU_INVALID,
47 	CSU_CSL,
48 	CSU_HP,
49 	CSU_SA,
50 	CSU_HPCONTROL,
51 };
52 
53 struct imx_csu_cfg {
54 	enum csu_cfg_type type;
55 	uint16_t idx;
56 	uint16_t lock : 1;
57 	uint16_t csl_level : 8;
58 	uint16_t hp : 1;
59 	uint16_t sa : 1;
60 	uint16_t hpctrl : 1;
61 };
62 
63 #define CSU_CSLx(i, level, lk)	\
64 	{CSU_CSL, .idx = (i), .csl_level = (level), .lock = (lk),}
65 
66 #define CSU_HPx(i, val, lk)	\
67 	{CSU_HP, .idx = (i), .hp = (val), .lock = (lk), }
68 
69 #define CSU_SA(i, val, lk)	\
70 	{CSU_SA, .idx = (i), .sa = (val), .lock = (lk), }
71 
72 #define CSU_HPCTRL(i, val, lk)	\
73 	{CSU_HPCONTROL, .idx = (i), .hpctrl = (val), .lock = (lk), }
74 
75 void imx_csu_init(const struct imx_csu_cfg *csu_cfg);
76 
77 #endif /* IMX_CSU_H */
78