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/eventhandler.h>
32 #include <sys/kernel.h>
33 #include <sys/module.h>
34 #include <sys/reboot.h>
35 #include <sys/mutex.h>
36 #include <sys/rman.h>
37 #include <machine/bus.h>
38
39 #include <dev/iicbus/iiconf.h>
40 #include <dev/iicbus/iicbus.h>
41
42 #include <dev/ofw/ofw_bus.h>
43 #include <dev/ofw/ofw_bus_subr.h>
44
45 #include <dev/iicbus/pmic/rockchip/rk805reg.h>
46 #include <dev/iicbus/pmic/rockchip/rk8xx.h>
47
48 static struct ofw_compat_data compat_data[] = {
49 {"rockchip,rk805", RK805},
50 {NULL, 0}
51 };
52
53 static struct rk8xx_regdef rk805_regdefs[] = {
54 {
55 .id = RK805_BUCK1,
56 .name = "DCDC_REG1",
57 .enable_reg = RK805_DCDC_EN,
58 .enable_mask = 0x11,
59 .voltage_reg = RK805_BUCK1_ON_VSEL,
60 .voltage_mask = 0x3F,
61 .voltage_min = 712500,
62 .voltage_max = 1450000,
63 .voltage_step = 12500,
64 .voltage_nstep = 64,
65 },
66 {
67 .id = RK805_BUCK2,
68 .name = "DCDC_REG2",
69 .enable_reg = RK805_DCDC_EN,
70 .enable_mask = 0x22,
71 .voltage_reg = RK805_BUCK2_ON_VSEL,
72 .voltage_mask = 0x3F,
73 .voltage_min = 712500,
74 .voltage_max = 1450000,
75 .voltage_step = 12500,
76 .voltage_nstep = 64,
77 },
78 {
79 .id = RK805_BUCK3,
80 .name = "DCDC_REG3",
81 .enable_reg = RK805_DCDC_EN,
82 .enable_mask = 0x44,
83 },
84 {
85 .id = RK805_BUCK4,
86 .name = "DCDC_REG4",
87 .enable_reg = RK805_DCDC_EN,
88 .enable_mask = 0x88,
89 .voltage_reg = RK805_BUCK4_ON_VSEL,
90 .voltage_mask = 0x3F,
91 .voltage_min = 800000,
92 .voltage_max = 3500000,
93 .voltage_step = 100000,
94 .voltage_nstep = 28,
95 },
96 {
97 .id = RK805_LDO1,
98 .name = "LDO_REG1",
99 .enable_reg = RK805_LDO_EN,
100 .enable_mask = 0x11,
101 .voltage_reg = RK805_LDO1_ON_VSEL,
102 .voltage_mask = 0x1F,
103 .voltage_min = 800000,
104 .voltage_max = 3400000,
105 .voltage_step = 100000,
106 .voltage_nstep = 27,
107 },
108 {
109 .id = RK805_LDO2,
110 .name = "LDO_REG2",
111 .enable_reg = RK805_LDO_EN,
112 .enable_mask = 0x22,
113 .voltage_reg = RK805_LDO2_ON_VSEL,
114 .voltage_mask = 0x1F,
115 .voltage_min = 800000,
116 .voltage_max = 3400000,
117 .voltage_step = 100000,
118 .voltage_nstep = 27,
119 },
120 {
121 .id = RK805_LDO3,
122 .name = "LDO_REG3",
123 .enable_reg = RK805_LDO_EN,
124 .enable_mask = 0x44,
125 .voltage_reg = RK805_LDO3_ON_VSEL,
126 .voltage_mask = 0x1F,
127 .voltage_min = 800000,
128 .voltage_max = 3400000,
129 .voltage_step = 100000,
130 .voltage_nstep = 27,
131 },
132 };
133
134 static int
rk805_probe(device_t dev)135 rk805_probe(device_t dev)
136 {
137 if (!ofw_bus_status_okay(dev))
138 return (ENXIO);
139
140 if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
141 return (ENXIO);
142
143 device_set_desc(dev, "RockChip RK805 PMIC");
144 return (BUS_PROBE_DEFAULT);
145 }
146
147 static int
rk805_attach(device_t dev)148 rk805_attach(device_t dev)
149 {
150 struct rk8xx_softc *sc;
151
152 sc = device_get_softc(dev);
153 sc->dev = dev;
154
155 sc->type = ofw_bus_search_compatible(dev, compat_data)->ocd_data;
156
157 sc->regdefs = rk805_regdefs;
158 sc->nregs = nitems(rk805_regdefs);
159 sc->rtc_regs.secs = RK805_RTC_SECS;
160 sc->rtc_regs.secs_mask = RK805_RTC_SECS_MASK;
161 sc->rtc_regs.minutes = RK805_RTC_MINUTES;
162 sc->rtc_regs.minutes_mask = RK805_RTC_MINUTES_MASK;
163 sc->rtc_regs.hours = RK805_RTC_HOURS;
164 sc->rtc_regs.hours_mask = RK805_RTC_HOURS_MASK;
165 sc->rtc_regs.days = RK805_RTC_DAYS;
166 sc->rtc_regs.days_mask = RK805_RTC_DAYS_MASK;
167 sc->rtc_regs.months = RK805_RTC_MONTHS;
168 sc->rtc_regs.months_mask = RK805_RTC_MONTHS_MASK;
169 sc->rtc_regs.years = RK805_RTC_YEARS;
170 sc->rtc_regs.weeks = RK805_RTC_WEEKS_MASK;
171 sc->rtc_regs.ctrl = RK805_RTC_CTRL;
172 sc->rtc_regs.ctrl_stop_mask = RK805_RTC_CTRL_STOP;
173 sc->rtc_regs.ctrl_ampm_mask = RK805_RTC_AMPM_MODE;
174 sc->rtc_regs.ctrl_gettime_mask = RK805_RTC_GET_TIME;
175 sc->rtc_regs.ctrl_readsel_mask = RK805_RTC_READSEL;
176 sc->dev_ctrl.dev_ctrl_reg = RK805_DEV_CTRL;
177 sc->dev_ctrl.pwr_off_mask = RK805_DEV_CTRL_OFF;
178
179 return (rk8xx_attach(sc));
180 }
181
182 static device_method_t rk805_methods[] = {
183 DEVMETHOD(device_probe, rk805_probe),
184 DEVMETHOD(device_attach, rk805_attach),
185
186 DEVMETHOD_END
187 };
188
189 DEFINE_CLASS_1(rk805_pmu, rk805_driver, rk805_methods,
190 sizeof(struct rk8xx_softc), rk8xx_driver);
191
192 EARLY_DRIVER_MODULE(rk805_pmu, iicbus, rk805_driver, 0, 0,
193 BUS_PASS_INTERRUPT + BUS_PASS_ORDER_LATE);
194 EARLY_DRIVER_MODULE(iicbus, rk805_pmu, iicbus_driver, 0, 0,
195 BUS_PASS_INTERRUPT + BUS_PASS_ORDER_LATE);
196 MODULE_DEPEND(rk805_pmu, iicbus, IICBUS_MINVER, IICBUS_PREFVER, IICBUS_MAXVER);
197 MODULE_VERSION(rk805_pmu, 1);
198