1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2018-2021 Emmanuel Vadot <manu@FreeBSD.org>
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <sys/param.h>
29 #include <sys/bus.h>
30 #include <sys/clock.h>
31 #include <sys/kernel.h>
32 #include <sys/module.h>
33 #include <sys/mutex.h>
34 #include <sys/rman.h>
35 #include <machine/bus.h>
36
37 #include <dev/iicbus/iiconf.h>
38 #include <dev/iicbus/iicbus.h>
39
40 #include <dev/ofw/ofw_bus.h>
41 #include <dev/ofw/ofw_bus_subr.h>
42
43 #include <dev/iicbus/pmic/rockchip/rk808reg.h>
44 #include <dev/iicbus/pmic/rockchip/rk8xx.h>
45
46 static struct ofw_compat_data compat_data[] = {
47 {"rockchip,rk808", RK808},
48 {NULL, 0}
49 };
50
51 static struct rk8xx_regdef rk808_regdefs[] = {
52 {
53 .id = RK808_BUCK1,
54 .name = "DCDC_REG1",
55 .enable_reg = RK808_DCDC_EN,
56 .enable_mask = 0x1,
57 .voltage_reg = RK808_BUCK1_ON_VSEL,
58 .voltage_mask = 0x3F,
59 .voltage_min = 712500,
60 .voltage_max = 1500000,
61 .voltage_step = 12500,
62 .voltage_nstep = 64,
63 },
64 {
65 .id = RK808_BUCK2,
66 .name = "DCDC_REG2",
67 .enable_reg = RK808_DCDC_EN,
68 .enable_mask = 0x2,
69 .voltage_reg = RK808_BUCK2_ON_VSEL,
70 .voltage_mask = 0x3F,
71 .voltage_min = 712500,
72 .voltage_max = 1500000,
73 .voltage_step = 12500,
74 .voltage_nstep = 64,
75 },
76 {
77 /* BUCK3 voltage is calculated based on external resistor */
78 .id = RK808_BUCK3,
79 .name = "DCDC_REG3",
80 .enable_reg = RK808_DCDC_EN,
81 .enable_mask = 0x4,
82 },
83 {
84 .id = RK808_BUCK4,
85 .name = "DCDC_REG4",
86 .enable_reg = RK808_DCDC_EN,
87 .enable_mask = 0x8,
88 .voltage_reg = RK808_BUCK4_ON_VSEL,
89 .voltage_mask = 0xF,
90 .voltage_min = 1800000,
91 .voltage_max = 3300000,
92 .voltage_step = 100000,
93 .voltage_nstep = 16,
94 },
95 {
96 .id = RK808_LDO1,
97 .name = "LDO_REG1",
98 .enable_reg = RK808_LDO_EN,
99 .enable_mask = 0x1,
100 .voltage_reg = RK808_LDO1_ON_VSEL,
101 .voltage_mask = 0x1F,
102 .voltage_min = 1800000,
103 .voltage_max = 3400000,
104 .voltage_step = 100000,
105 .voltage_nstep = 17,
106 },
107 {
108 .id = RK808_LDO2,
109 .name = "LDO_REG2",
110 .enable_reg = RK808_LDO_EN,
111 .enable_mask = 0x2,
112 .voltage_reg = RK808_LDO2_ON_VSEL,
113 .voltage_mask = 0x1F,
114 .voltage_min = 1800000,
115 .voltage_max = 3400000,
116 .voltage_step = 100000,
117 .voltage_nstep = 17,
118 },
119 {
120 .id = RK808_LDO3,
121 .name = "LDO_REG3",
122 .enable_reg = RK808_LDO_EN,
123 .enable_mask = 0x4,
124 .voltage_reg = RK808_LDO3_ON_VSEL,
125 .voltage_mask = 0xF,
126 .voltage_min = 800000,
127 .voltage_max = 2500000,
128 .voltage_step = 100000,
129 .voltage_nstep = 18,
130 },
131 {
132 .id = RK808_LDO4,
133 .name = "LDO_REG4",
134 .enable_reg = RK808_LDO_EN,
135 .enable_mask = 0x8,
136 .voltage_reg = RK808_LDO4_ON_VSEL,
137 .voltage_mask = 0x1F,
138 .voltage_min = 1800000,
139 .voltage_max = 3400000,
140 .voltage_step = 100000,
141 .voltage_nstep = 17,
142 },
143 {
144 .id = RK808_LDO5,
145 .name = "LDO_REG5",
146 .enable_reg = RK808_LDO_EN,
147 .enable_mask = 0x10,
148 .voltage_reg = RK808_LDO5_ON_VSEL,
149 .voltage_mask = 0x1F,
150 .voltage_min = 1800000,
151 .voltage_max = 3400000,
152 .voltage_step = 100000,
153 .voltage_nstep = 17,
154 },
155 {
156 .id = RK808_LDO6,
157 .name = "LDO_REG6",
158 .enable_reg = RK808_LDO_EN,
159 .enable_mask = 0x20,
160 .voltage_reg = RK808_LDO6_ON_VSEL,
161 .voltage_mask = 0x1F,
162 .voltage_min = 800000,
163 .voltage_max = 2500000,
164 .voltage_step = 100000,
165 .voltage_nstep = 18,
166 },
167 {
168 .id = RK808_LDO7,
169 .name = "LDO_REG7",
170 .enable_reg = RK808_LDO_EN,
171 .enable_mask = 0x40,
172 .voltage_reg = RK808_LDO7_ON_VSEL,
173 .voltage_mask = 0x1F,
174 .voltage_min = 800000,
175 .voltage_max = 2500000,
176 .voltage_step = 100000,
177 .voltage_nstep = 18,
178 },
179 {
180 .id = RK808_LDO8,
181 .name = "LDO_REG8",
182 .enable_reg = RK808_LDO_EN,
183 .enable_mask = 0x80,
184 .voltage_reg = RK808_LDO8_ON_VSEL,
185 .voltage_mask = 0x1F,
186 .voltage_min = 1800000,
187 .voltage_max = 3400000,
188 .voltage_step = 100000,
189 .voltage_nstep = 17,
190 },
191 {
192 .id = RK808_SWITCH1,
193 .name = "SWITCH_REG1",
194 .enable_reg = RK808_DCDC_EN,
195 .enable_mask = 0x20,
196 .voltage_min = 3000000,
197 .voltage_max = 3000000,
198 },
199 {
200 .id = RK808_SWITCH2,
201 .name = "SWITCH_REG2",
202 .enable_reg = RK808_DCDC_EN,
203 .enable_mask = 0x40,
204 .voltage_min = 3000000,
205 .voltage_max = 3000000,
206 },
207 };
208
209 static int
rk808_probe(device_t dev)210 rk808_probe(device_t dev)
211 {
212 if (!ofw_bus_status_okay(dev))
213 return (ENXIO);
214
215 if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
216 return (ENXIO);
217
218 device_set_desc(dev, "RockChip RK808 PMIC");
219 return (BUS_PROBE_DEFAULT);
220 }
221
222 static int
rk808_attach(device_t dev)223 rk808_attach(device_t dev)
224 {
225 struct rk8xx_softc *sc;
226
227 sc = device_get_softc(dev);
228 sc->dev = dev;
229
230 sc->type = ofw_bus_search_compatible(dev, compat_data)->ocd_data;
231
232 sc->regdefs = rk808_regdefs;
233 sc->nregs = nitems(rk808_regdefs);
234 sc->rtc_regs.secs = RK808_RTC_SECS;
235 sc->rtc_regs.secs_mask = RK808_RTC_SECS_MASK;
236 sc->rtc_regs.minutes = RK808_RTC_MINUTES;
237 sc->rtc_regs.minutes_mask = RK808_RTC_MINUTES_MASK;
238 sc->rtc_regs.hours = RK808_RTC_HOURS;
239 sc->rtc_regs.hours_mask = RK808_RTC_HOURS_MASK;
240 sc->rtc_regs.days = RK808_RTC_DAYS;
241 sc->rtc_regs.days_mask = RK808_RTC_DAYS_MASK;
242 sc->rtc_regs.months = RK808_RTC_MONTHS;
243 sc->rtc_regs.months_mask = RK808_RTC_MONTHS_MASK;
244 sc->rtc_regs.years = RK808_RTC_YEARS;
245 sc->rtc_regs.weeks = RK808_RTC_WEEKS_MASK;
246 sc->rtc_regs.ctrl = RK808_RTC_CTRL;
247 sc->rtc_regs.ctrl_stop_mask = RK808_RTC_CTRL_STOP;
248 sc->rtc_regs.ctrl_ampm_mask = RK808_RTC_AMPM_MODE;
249 sc->rtc_regs.ctrl_gettime_mask = RK808_RTC_GET_TIME;
250 sc->rtc_regs.ctrl_readsel_mask = RK808_RTC_READSEL;
251 sc->dev_ctrl.dev_ctrl_reg = RK808_DEV_CTRL;
252 sc->dev_ctrl.pwr_off_mask = RK808_DEV_CTRL_OFF;
253
254 return (rk8xx_attach(sc));
255 }
256
257 static device_method_t rk808_methods[] = {
258 DEVMETHOD(device_probe, rk808_probe),
259 DEVMETHOD(device_attach, rk808_attach),
260
261 DEVMETHOD_END
262 };
263
264 DEFINE_CLASS_1(rk808_pmu, rk808_driver, rk808_methods,
265 sizeof(struct rk8xx_softc), rk8xx_driver);
266
267 EARLY_DRIVER_MODULE(rk808_pmu, iicbus, rk808_driver, 0, 0,
268 BUS_PASS_INTERRUPT + BUS_PASS_ORDER_LATE);
269 EARLY_DRIVER_MODULE(iicbus, rk808_pmu, iicbus_driver, 0, 0,
270 BUS_PASS_INTERRUPT + BUS_PASS_ORDER_LATE);
271 MODULE_DEPEND(rk808_pmu, iicbus, IICBUS_MINVER, IICBUS_PREFVER, IICBUS_MAXVER);
272 MODULE_VERSION(rk808_pmu, 1);
273