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1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * OMAP5xxx bandgap registers, bitfields and temperature definitions
4  *
5  * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
6  * Contact:
7  *   Eduardo Valentin <eduardo.valentin@ti.com>
8  */
9 #ifndef __OMAP5XXX_BANDGAP_H
10 #define __OMAP5XXX_BANDGAP_H
11 
12 /**
13  * *** OMAP5430 ***
14  *
15  * Below, in sequence, are the Register definitions,
16  * the bitfields and the temperature definitions for OMAP5430.
17  */
18 
19 /**
20  * OMAP5430 register definitions
21  *
22  * Registers are defined as offsets. The offsets are
23  * relative to FUSE_OPP_BGAP_GPU on 5430.
24  *
25  * Register below are grouped by domain (not necessarily in offset order)
26  */
27 
28 /* OMAP5430.GPU register offsets */
29 #define OMAP5430_FUSE_OPP_BGAP_GPU			0x0
30 #define OMAP5430_TEMP_SENSOR_GPU_OFFSET			0x150
31 #define OMAP5430_BGAP_THRESHOLD_GPU_OFFSET		0x1A8
32 #define OMAP5430_BGAP_TSHUT_GPU_OFFSET			0x1B4
33 #define OMAP5430_BGAP_DTEMP_GPU_1_OFFSET		0x1F8
34 #define OMAP5430_BGAP_DTEMP_GPU_2_OFFSET		0x1FC
35 
36 /* OMAP5430.MPU register offsets */
37 #define OMAP5430_FUSE_OPP_BGAP_MPU			0x4
38 #define OMAP5430_TEMP_SENSOR_MPU_OFFSET			0x14C
39 #define OMAP5430_BGAP_THRESHOLD_MPU_OFFSET		0x1A4
40 #define OMAP5430_BGAP_TSHUT_MPU_OFFSET			0x1B0
41 #define OMAP5430_BGAP_DTEMP_MPU_1_OFFSET		0x1E4
42 #define OMAP5430_BGAP_DTEMP_MPU_2_OFFSET		0x1E8
43 
44 /* OMAP5430.MPU register offsets */
45 #define OMAP5430_FUSE_OPP_BGAP_CORE			0x8
46 #define OMAP5430_TEMP_SENSOR_CORE_OFFSET		0x154
47 #define OMAP5430_BGAP_THRESHOLD_CORE_OFFSET		0x1AC
48 #define OMAP5430_BGAP_TSHUT_CORE_OFFSET			0x1B8
49 #define OMAP5430_BGAP_DTEMP_CORE_1_OFFSET		0x20C
50 #define OMAP5430_BGAP_DTEMP_CORE_2_OFFSET		0x210
51 
52 /* OMAP5430.common register offsets */
53 #define OMAP5430_BGAP_CTRL_OFFSET			0x1A0
54 #define OMAP5430_BGAP_STATUS_OFFSET			0x1C8
55 
56 /**
57  * Register bitfields for OMAP5430
58  *
59  * All the macros bellow define the required bits for
60  * controlling temperature on OMAP5430. Bit defines are
61  * grouped by register.
62  */
63 
64 /* OMAP5430.TEMP_SENSOR */
65 #define OMAP5430_BGAP_TEMP_SENSOR_SOC_MASK		BIT(12)
66 #define OMAP5430_BGAP_TEMPSOFF_MASK			BIT(11)
67 #define OMAP5430_BGAP_TEMP_SENSOR_EOCZ_MASK		BIT(10)
68 #define OMAP5430_BGAP_TEMP_SENSOR_DTEMP_MASK		(0x3ff << 0)
69 
70 /* OMAP5430.BANDGAP_CTRL */
71 #define OMAP5430_MASK_COUNTER_DELAY_MASK		(0x7 << 27)
72 #define OMAP5430_MASK_FREEZE_CORE_MASK			BIT(23)
73 #define OMAP5430_MASK_FREEZE_GPU_MASK			BIT(22)
74 #define OMAP5430_MASK_FREEZE_MPU_MASK			BIT(21)
75 #define OMAP5430_MASK_HOT_CORE_MASK			BIT(5)
76 #define OMAP5430_MASK_COLD_CORE_MASK			BIT(4)
77 #define OMAP5430_MASK_HOT_GPU_MASK			BIT(3)
78 #define OMAP5430_MASK_COLD_GPU_MASK			BIT(2)
79 #define OMAP5430_MASK_HOT_MPU_MASK			BIT(1)
80 #define OMAP5430_MASK_COLD_MPU_MASK			BIT(0)
81 
82 /* OMAP5430.BANDGAP_COUNTER */
83 #define OMAP5430_COUNTER_MASK				(0xffffff << 0)
84 
85 /* OMAP5430.BANDGAP_THRESHOLD */
86 #define OMAP5430_T_HOT_MASK				(0x3ff << 16)
87 #define OMAP5430_T_COLD_MASK				(0x3ff << 0)
88 
89 /* OMAP5430.TSHUT_THRESHOLD */
90 #define OMAP5430_TSHUT_HOT_MASK				(0x3ff << 16)
91 #define OMAP5430_TSHUT_COLD_MASK			(0x3ff << 0)
92 
93 /* OMAP5430.BANDGAP_STATUS */
94 #define OMAP5430_HOT_CORE_FLAG_MASK			BIT(5)
95 #define OMAP5430_COLD_CORE_FLAG_MASK			BIT(4)
96 #define OMAP5430_HOT_GPU_FLAG_MASK			BIT(3)
97 #define OMAP5430_COLD_GPU_FLAG_MASK			BIT(2)
98 #define OMAP5430_HOT_MPU_FLAG_MASK			BIT(1)
99 #define OMAP5430_COLD_MPU_FLAG_MASK			BIT(0)
100 
101 /**
102  * Temperature limits and thresholds for OMAP5430
103  *
104  * All the macros bellow are definitions for handling the
105  * ADC conversions and representation of temperature limits
106  * and thresholds for OMAP5430. Definitions are grouped
107  * by temperature domain.
108  */
109 
110 /* OMAP5430.common temperature definitions */
111 /* ADC conversion table limits */
112 #define OMAP5430_ADC_START_VALUE			540
113 #define OMAP5430_ADC_END_VALUE				945
114 
115 /* OMAP5430.GPU temperature definitions */
116 /* bandgap clock limits */
117 #define OMAP5430_GPU_MAX_FREQ				1500000
118 #define OMAP5430_GPU_MIN_FREQ				1000000
119 /* interrupts thresholds */
120 #define OMAP5430_GPU_TSHUT_HOT				915
121 #define OMAP5430_GPU_TSHUT_COLD				900
122 #define OMAP5430_GPU_T_HOT				800
123 #define OMAP5430_GPU_T_COLD				795
124 
125 /* OMAP5430.MPU temperature definitions */
126 /* bandgap clock limits */
127 #define OMAP5430_MPU_MAX_FREQ				1500000
128 #define OMAP5430_MPU_MIN_FREQ				1000000
129 /* interrupts thresholds */
130 #define OMAP5430_MPU_TSHUT_HOT				915
131 #define OMAP5430_MPU_TSHUT_COLD				900
132 #define OMAP5430_MPU_T_HOT				800
133 #define OMAP5430_MPU_T_COLD				795
134 
135 /* OMAP5430.CORE temperature definitions */
136 /* bandgap clock limits */
137 #define OMAP5430_CORE_MAX_FREQ				1500000
138 #define OMAP5430_CORE_MIN_FREQ				1000000
139 /* interrupts thresholds */
140 #define OMAP5430_CORE_TSHUT_HOT				915
141 #define OMAP5430_CORE_TSHUT_COLD			900
142 #define OMAP5430_CORE_T_HOT				800
143 #define OMAP5430_CORE_T_COLD				795
144 
145 #endif /* __OMAP5XXX_BANDGAP_H */
146