1 /*
2  * Copyright 2016 Freescale Semiconductor, Inc.
3  * Hou Zhiqiang <Zhiqiang.Hou@freescale.com>
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 
8 #ifndef __MC34VR500_H_
9 #define __MC34VR500_H_
10 
11 #include <power/pmic.h>
12 
13 #define MC34VR500_I2C_ADDR	0x08
14 
15 /* Drivers name */
16 #define MC34VR500_REGULATOR_DRIVER	"mc34vr500_regulator"
17 
18 /* Register map */
19 enum {
20 	MC34VR500_DEVICEID		= 0x00,
21 
22 	MC34VR500_SILICONREVID		= 0x03,
23 	MC34VR500_FABID,
24 	MC34VR500_INTSTAT0,
25 	MC34VR500_INTMASK0,
26 	MC34VR500_INTSENSE0,
27 	MC34VR500_INTSTAT1,
28 	MC34VR500_INTMASK1,
29 	MC34VR500_INTSENSE1,
30 
31 	MC34VR500_INTSTAT4		= 0x11,
32 	MC34VR500_INTMASK4,
33 	MC34VR500_INTSENSE4,
34 
35 	MC34VR500_PWRCTL		= 0x1B,
36 
37 	MC34VR500_SW1VOLT		= 0x2E,
38 	MC34VR500_SW1STBY,
39 	MC34VR500_SW1OFF,
40 	MC34VR500_SW1MODE,
41 	MC34VR500_SW1CONF,
42 	MC34VR500_SW2VOLT,
43 	MC34VR500_SW2STBY,
44 	MC34VR500_SW2OFF,
45 	MC34VR500_SW2MODE,
46 	MC34VR500_SW2CONF,
47 
48 	MC34VR500_SW3VOLT		= 0x3C,
49 	MC34VR500_SW3STBY,
50 	MC34VR500_SW3OFF,
51 	MC34VR500_SW3MODE,
52 	MC34VR500_SW3CONF,
53 
54 	MC34VR500_SW4VOLT		= 0x4A,
55 	MC34VR500_SW4STBY,
56 	MC34VR500_SW4OFF,
57 	MC34VR500_SW4MODE,
58 	MC34VR500_SW4CONF,
59 
60 	MC34VR500_REFOUTCRTRL		= 0x6A,
61 
62 	MC34VR500_LDO1CTL		= 0x6D,
63 	MC34VR500_LDO2CTL,
64 	MC34VR500_LDO3CTL,
65 	MC34VR500_LDO4CTL,
66 	MC34VR500_LDO5CTL,
67 
68 	MC34VR500_PAGE_REGISTER		= 0x7F,
69 
70 	/* Internal RAM */
71 	MC34VR500_SW1_VOLT		= 0xA8,
72 	MC34VR500_SW1_SEQ,
73 	MC34VR500_SW1_CONFIG,
74 
75 	MC34VR500_SW2_VOLT		= 0xAC,
76 	MC34VR500_SW2_SEQ,
77 	MC34VR500_SW2_CONFIG,
78 
79 	MC34VR500_SW3_VOLT		= 0xB0,
80 	MC34VR500_SW3_SEQ,
81 	MC34VR500_SW3_CONFIG,
82 
83 	MC34VR500_SW4_VOLT		= 0xB8,
84 	MC34VR500_SW4_SEQ,
85 	MC34VR500_SW4_CONFIG,
86 
87 	MC34VR500_REFOUT_SEQ		= 0xC4,
88 
89 	MC34VR500_LDO1_VOLT		= 0xCC,
90 	MC34VR500_LDO1_SEQ,
91 
92 	MC34VR500_LDO2_VOLT		= 0xD0,
93 	MC34VR500_LDO2_SEQ,
94 
95 	MC34VR500_LDO3_VOLT		= 0xD4,
96 	MC34VR500_LDO3_SEQ,
97 
98 	MC34VR500_LDO4_VOLT		= 0xD8,
99 	MC34VR500_LDO4_SEQ,
100 
101 	MC34VR500_LDO5_VOLT		= 0xDC,
102 	MC34VR500_LDO5_SEQ,
103 
104 	MC34VR500_PU_CONFIG1		= 0xE0,
105 
106 	MC34VR500_TBB_POR		= 0xE4,
107 
108 	MC34VR500_PWRGD_EN		= 0xE8,
109 
110 	MC34VR500_NUM_OF_REGS,
111 };
112 
113 /* Registor offset based on SWxVOLT register */
114 #define MC34VR500_VOLT_OFFSET	0
115 #define MC34VR500_STBY_OFFSET	1
116 #define MC34VR500_OFF_OFFSET	2
117 #define MC34VR500_MODE_OFFSET	3
118 #define MC34VR500_CONF_OFFSET	4
119 
120 #define SW_MODE_MASK	0xf
121 #define SW_MODE_SHIFT	0
122 
123 #define LDO_VOL_MASK	0xf
124 #define LDO_EN		(1 << 4)
125 #define LDO_MODE_SHIFT	4
126 #define LDO_MODE_MASK	(1 << 4)
127 #define LDO_MODE_OFF	0
128 #define LDO_MODE_ON	1
129 
130 #define REFOUTEN	(1 << 4)
131 
132 /*
133  * Regulator Mode Control
134  *
135  * OFF: The regulator is switched off and the output voltage is discharged.
136  * PFM: In this mode, the regulator is always in PFM mode, which is useful
137  *      at light loads for optimized efficiency.
138  * PWM: In this mode, the regulator is always in PWM mode operation
139  *	regardless of load conditions.
140  * APS: In this mode, the regulator moves automatically between pulse
141  *	skipping mode and PWM mode depending on load conditions.
142  *
143  * SWxMODE[3:0]
144  * Normal Mode  |  Standby Mode	|      value
145  *   OFF		OFF		0x0
146  *   PWM		OFF		0x1
147  *   PFM		OFF		0x3
148  *   APS		OFF		0x4
149  *   PWM		PWM		0x5
150  *   PWM		APS		0x6
151  *   APS		APS		0x8
152  *   APS		PFM		0xc
153  *   PWM		PFM		0xd
154  */
155 #define OFF_OFF		0x0
156 #define PWM_OFF		0x1
157 #define PFM_OFF		0x3
158 #define APS_OFF		0x4
159 #define PWM_PWM		0x5
160 #define PWM_APS		0x6
161 #define APS_APS		0x8
162 #define APS_PFM		0xc
163 #define PWM_PFM		0xd
164 
165 enum swx {
166 	SW1 = 0,
167 	SW2,
168 	SW3,
169 	SW4,
170 };
171 
172 int mc34vr500_get_sw_volt(uint8_t sw);
173 int mc34vr500_set_sw_volt(uint8_t sw, int sw_volt);
174 int power_mc34vr500_init(unsigned char bus);
175 #endif /* __MC34VR500_PMIC_H_ */
176