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/cdefs.h> 29 #include <sys/param.h> 30 #include <sys/bus.h> 31 #include <sys/clock.h> 32 #include <sys/kernel.h> 33 #include <sys/module.h> 34 #include <sys/mutex.h> 35 #include <sys/rman.h> 36 #include <machine/bus.h> 37 38 #include <dev/iicbus/iiconf.h> 39 #include <dev/iicbus/iicbus.h> 40 41 #include <dev/ofw/ofw_bus.h> 42 #include <dev/ofw/ofw_bus_subr.h> 43 44 #include <dev/iicbus/pmic/rockchip/rk808reg.h> 45 #include <dev/iicbus/pmic/rockchip/rk8xx.h> 46 47 static struct ofw_compat_data compat_data[] = { 48 {"rockchip,rk808", RK808}, 49 {NULL, 0} 50 }; 51 52 static struct rk8xx_regdef rk808_regdefs[] = { 53 { 54 .id = RK808_BUCK1, 55 .name = "DCDC_REG1", 56 .enable_reg = RK808_DCDC_EN, 57 .enable_mask = 0x1, 58 .voltage_reg = RK808_BUCK1_ON_VSEL, 59 .voltage_mask = 0x3F, 60 .voltage_min = 712500, 61 .voltage_max = 1500000, 62 .voltage_step = 12500, 63 .voltage_nstep = 64, 64 }, 65 { 66 .id = RK808_BUCK2, 67 .name = "DCDC_REG2", 68 .enable_reg = RK808_DCDC_EN, 69 .enable_mask = 0x2, 70 .voltage_reg = RK808_BUCK2_ON_VSEL, 71 .voltage_mask = 0x3F, 72 .voltage_min = 712500, 73 .voltage_max = 1500000, 74 .voltage_step = 12500, 75 .voltage_nstep = 64, 76 }, 77 { 78 /* BUCK3 voltage is calculated based on external resistor */ 79 .id = RK808_BUCK3, 80 .name = "DCDC_REG3", 81 .enable_reg = RK808_DCDC_EN, 82 .enable_mask = 0x4, 83 }, 84 { 85 .id = RK808_BUCK4, 86 .name = "DCDC_REG4", 87 .enable_reg = RK808_DCDC_EN, 88 .enable_mask = 0x8, 89 .voltage_reg = RK808_BUCK4_ON_VSEL, 90 .voltage_mask = 0xF, 91 .voltage_min = 1800000, 92 .voltage_max = 3300000, 93 .voltage_step = 100000, 94 .voltage_nstep = 16, 95 }, 96 { 97 .id = RK808_LDO1, 98 .name = "LDO_REG1", 99 .enable_reg = RK808_LDO_EN, 100 .enable_mask = 0x1, 101 .voltage_reg = RK808_LDO1_ON_VSEL, 102 .voltage_mask = 0x1F, 103 .voltage_min = 1800000, 104 .voltage_max = 3400000, 105 .voltage_step = 100000, 106 .voltage_nstep = 17, 107 }, 108 { 109 .id = RK808_LDO2, 110 .name = "LDO_REG2", 111 .enable_reg = RK808_LDO_EN, 112 .enable_mask = 0x2, 113 .voltage_reg = RK808_LDO2_ON_VSEL, 114 .voltage_mask = 0x1F, 115 .voltage_min = 1800000, 116 .voltage_max = 3400000, 117 .voltage_step = 100000, 118 .voltage_nstep = 17, 119 }, 120 { 121 .id = RK808_LDO3, 122 .name = "LDO_REG3", 123 .enable_reg = RK808_LDO_EN, 124 .enable_mask = 0x4, 125 .voltage_reg = RK808_LDO3_ON_VSEL, 126 .voltage_mask = 0xF, 127 .voltage_min = 800000, 128 .voltage_max = 2500000, 129 .voltage_step = 100000, 130 .voltage_nstep = 18, 131 }, 132 { 133 .id = RK808_LDO4, 134 .name = "LDO_REG4", 135 .enable_reg = RK808_LDO_EN, 136 .enable_mask = 0x8, 137 .voltage_reg = RK808_LDO4_ON_VSEL, 138 .voltage_mask = 0x1F, 139 .voltage_min = 1800000, 140 .voltage_max = 3400000, 141 .voltage_step = 100000, 142 .voltage_nstep = 17, 143 }, 144 { 145 .id = RK808_LDO5, 146 .name = "LDO_REG5", 147 .enable_reg = RK808_LDO_EN, 148 .enable_mask = 0x10, 149 .voltage_reg = RK808_LDO5_ON_VSEL, 150 .voltage_mask = 0x1F, 151 .voltage_min = 1800000, 152 .voltage_max = 3400000, 153 .voltage_step = 100000, 154 .voltage_nstep = 17, 155 }, 156 { 157 .id = RK808_LDO6, 158 .name = "LDO_REG6", 159 .enable_reg = RK808_LDO_EN, 160 .enable_mask = 0x20, 161 .voltage_reg = RK808_LDO6_ON_VSEL, 162 .voltage_mask = 0x1F, 163 .voltage_min = 800000, 164 .voltage_max = 2500000, 165 .voltage_step = 100000, 166 .voltage_nstep = 18, 167 }, 168 { 169 .id = RK808_LDO7, 170 .name = "LDO_REG7", 171 .enable_reg = RK808_LDO_EN, 172 .enable_mask = 0x40, 173 .voltage_reg = RK808_LDO7_ON_VSEL, 174 .voltage_mask = 0x1F, 175 .voltage_min = 800000, 176 .voltage_max = 2500000, 177 .voltage_step = 100000, 178 .voltage_nstep = 18, 179 }, 180 { 181 .id = RK808_LDO8, 182 .name = "LDO_REG8", 183 .enable_reg = RK808_LDO_EN, 184 .enable_mask = 0x80, 185 .voltage_reg = RK808_LDO8_ON_VSEL, 186 .voltage_mask = 0x1F, 187 .voltage_min = 1800000, 188 .voltage_max = 3400000, 189 .voltage_step = 100000, 190 .voltage_nstep = 17, 191 }, 192 { 193 .id = RK808_SWITCH1, 194 .name = "SWITCH_REG1", 195 .enable_reg = RK808_DCDC_EN, 196 .enable_mask = 0x20, 197 .voltage_min = 3000000, 198 .voltage_max = 3000000, 199 }, 200 { 201 .id = RK808_SWITCH2, 202 .name = "SWITCH_REG2", 203 .enable_reg = RK808_DCDC_EN, 204 .enable_mask = 0x40, 205 .voltage_min = 3000000, 206 .voltage_max = 3000000, 207 }, 208 }; 209 210 static int 211 rk808_probe(device_t dev) 212 { 213 if (!ofw_bus_status_okay(dev)) 214 return (ENXIO); 215 216 if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0) 217 return (ENXIO); 218 219 device_set_desc(dev, "RockChip RK808 PMIC"); 220 return (BUS_PROBE_DEFAULT); 221 } 222 223 static int 224 rk808_attach(device_t dev) 225 { 226 struct rk8xx_softc *sc; 227 228 sc = device_get_softc(dev); 229 sc->dev = dev; 230 231 sc->type = ofw_bus_search_compatible(dev, compat_data)->ocd_data; 232 233 sc->regdefs = rk808_regdefs; 234 sc->nregs = nitems(rk808_regdefs); 235 sc->rtc_regs.secs = RK808_RTC_SECS; 236 sc->rtc_regs.secs_mask = RK808_RTC_SECS_MASK; 237 sc->rtc_regs.minutes = RK808_RTC_MINUTES; 238 sc->rtc_regs.minutes_mask = RK808_RTC_MINUTES_MASK; 239 sc->rtc_regs.hours = RK808_RTC_HOURS; 240 sc->rtc_regs.hours_mask = RK808_RTC_HOURS_MASK; 241 sc->rtc_regs.days = RK808_RTC_DAYS; 242 sc->rtc_regs.days_mask = RK808_RTC_DAYS_MASK; 243 sc->rtc_regs.months = RK808_RTC_MONTHS; 244 sc->rtc_regs.months_mask = RK808_RTC_MONTHS_MASK; 245 sc->rtc_regs.years = RK808_RTC_YEARS; 246 sc->rtc_regs.weeks = RK808_RTC_WEEKS_MASK; 247 sc->rtc_regs.ctrl = RK808_RTC_CTRL; 248 sc->rtc_regs.ctrl_stop_mask = RK808_RTC_CTRL_STOP; 249 sc->rtc_regs.ctrl_ampm_mask = RK808_RTC_AMPM_MODE; 250 sc->rtc_regs.ctrl_gettime_mask = RK808_RTC_GET_TIME; 251 sc->rtc_regs.ctrl_readsel_mask = RK808_RTC_READSEL; 252 sc->dev_ctrl.dev_ctrl_reg = RK808_DEV_CTRL; 253 sc->dev_ctrl.pwr_off_mask = RK808_DEV_CTRL_OFF; 254 255 return (rk8xx_attach(sc)); 256 } 257 258 static device_method_t rk808_methods[] = { 259 DEVMETHOD(device_probe, rk808_probe), 260 DEVMETHOD(device_attach, rk808_attach), 261 262 DEVMETHOD_END 263 }; 264 265 DEFINE_CLASS_1(rk808_pmu, rk808_driver, rk808_methods, 266 sizeof(struct rk8xx_softc), rk8xx_driver); 267 268 EARLY_DRIVER_MODULE(rk808_pmu, iicbus, rk808_driver, 0, 0, 269 BUS_PASS_INTERRUPT + BUS_PASS_ORDER_LATE); 270 EARLY_DRIVER_MODULE(iicbus, rk808_pmu, iicbus_driver, 0, 0, 271 BUS_PASS_INTERRUPT + BUS_PASS_ORDER_LATE); 272 MODULE_DEPEND(rk808_pmu, iicbus, IICBUS_MINVER, IICBUS_PREFVER, IICBUS_MAXVER); 273 MODULE_VERSION(rk808_pmu, 1); 274