1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 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 __FBSDID("$FreeBSD$"); 30 31 #include <sys/param.h> 32 #include <sys/bus.h> 33 #include <sys/clock.h> 34 #include <sys/kernel.h> 35 #include <sys/module.h> 36 #include <sys/mutex.h> 37 #include <sys/rman.h> 38 #include <machine/bus.h> 39 40 #include <dev/iicbus/iiconf.h> 41 #include <dev/iicbus/iicbus.h> 42 43 #include <dev/ofw/ofw_bus.h> 44 #include <dev/ofw/ofw_bus_subr.h> 45 46 #include <dev/iicbus/pmic/rockchip/rk808reg.h> 47 #include <dev/iicbus/pmic/rockchip/rk8xx.h> 48 49 static struct ofw_compat_data compat_data[] = { 50 {"rockchip,rk808", RK808}, 51 {NULL, 0} 52 }; 53 54 static struct rk8xx_regdef rk808_regdefs[] = { 55 { 56 .id = RK808_BUCK1, 57 .name = "DCDC_REG1", 58 .enable_reg = RK808_DCDC_EN, 59 .enable_mask = 0x1, 60 .voltage_reg = RK808_BUCK1_ON_VSEL, 61 .voltage_mask = 0x3F, 62 .voltage_min = 712500, 63 .voltage_max = 1500000, 64 .voltage_step = 12500, 65 .voltage_nstep = 64, 66 }, 67 { 68 .id = RK808_BUCK2, 69 .name = "DCDC_REG2", 70 .enable_reg = RK808_DCDC_EN, 71 .enable_mask = 0x2, 72 .voltage_reg = RK808_BUCK2_ON_VSEL, 73 .voltage_mask = 0x3F, 74 .voltage_min = 712500, 75 .voltage_max = 1500000, 76 .voltage_step = 12500, 77 .voltage_nstep = 64, 78 }, 79 { 80 /* BUCK3 voltage is calculated based on external resistor */ 81 .id = RK808_BUCK3, 82 .name = "DCDC_REG3", 83 .enable_reg = RK808_DCDC_EN, 84 .enable_mask = 0x4, 85 }, 86 { 87 .id = RK808_BUCK4, 88 .name = "DCDC_REG4", 89 .enable_reg = RK808_DCDC_EN, 90 .enable_mask = 0x8, 91 .voltage_reg = RK808_BUCK4_ON_VSEL, 92 .voltage_mask = 0xF, 93 .voltage_min = 1800000, 94 .voltage_max = 3300000, 95 .voltage_step = 100000, 96 .voltage_nstep = 16, 97 }, 98 { 99 .id = RK808_LDO1, 100 .name = "LDO_REG1", 101 .enable_reg = RK808_LDO_EN, 102 .enable_mask = 0x1, 103 .voltage_reg = RK808_LDO1_ON_VSEL, 104 .voltage_mask = 0x1F, 105 .voltage_min = 1800000, 106 .voltage_max = 3400000, 107 .voltage_step = 100000, 108 .voltage_nstep = 17, 109 }, 110 { 111 .id = RK808_LDO2, 112 .name = "LDO_REG2", 113 .enable_reg = RK808_LDO_EN, 114 .enable_mask = 0x2, 115 .voltage_reg = RK808_LDO2_ON_VSEL, 116 .voltage_mask = 0x1F, 117 .voltage_min = 1800000, 118 .voltage_max = 3400000, 119 .voltage_step = 100000, 120 .voltage_nstep = 17, 121 }, 122 { 123 .id = RK808_LDO3, 124 .name = "LDO_REG3", 125 .enable_reg = RK808_LDO_EN, 126 .enable_mask = 0x4, 127 .voltage_reg = RK808_LDO3_ON_VSEL, 128 .voltage_mask = 0xF, 129 .voltage_min = 800000, 130 .voltage_max = 2500000, 131 .voltage_step = 100000, 132 .voltage_nstep = 18, 133 }, 134 { 135 .id = RK808_LDO4, 136 .name = "LDO_REG4", 137 .enable_reg = RK808_LDO_EN, 138 .enable_mask = 0x8, 139 .voltage_reg = RK808_LDO4_ON_VSEL, 140 .voltage_mask = 0x1F, 141 .voltage_min = 1800000, 142 .voltage_max = 3400000, 143 .voltage_step = 100000, 144 .voltage_nstep = 17, 145 }, 146 { 147 .id = RK808_LDO5, 148 .name = "LDO_REG5", 149 .enable_reg = RK808_LDO_EN, 150 .enable_mask = 0x10, 151 .voltage_reg = RK808_LDO5_ON_VSEL, 152 .voltage_mask = 0x1F, 153 .voltage_min = 1800000, 154 .voltage_max = 3400000, 155 .voltage_step = 100000, 156 .voltage_nstep = 17, 157 }, 158 { 159 .id = RK808_LDO6, 160 .name = "LDO_REG6", 161 .enable_reg = RK808_LDO_EN, 162 .enable_mask = 0x20, 163 .voltage_reg = RK808_LDO6_ON_VSEL, 164 .voltage_mask = 0x1F, 165 .voltage_min = 800000, 166 .voltage_max = 2500000, 167 .voltage_step = 100000, 168 .voltage_nstep = 18, 169 }, 170 { 171 .id = RK808_LDO7, 172 .name = "LDO_REG7", 173 .enable_reg = RK808_LDO_EN, 174 .enable_mask = 0x40, 175 .voltage_reg = RK808_LDO7_ON_VSEL, 176 .voltage_mask = 0x1F, 177 .voltage_min = 800000, 178 .voltage_max = 2500000, 179 .voltage_step = 100000, 180 .voltage_nstep = 18, 181 }, 182 { 183 .id = RK808_LDO8, 184 .name = "LDO_REG8", 185 .enable_reg = RK808_LDO_EN, 186 .enable_mask = 0x80, 187 .voltage_reg = RK808_LDO8_ON_VSEL, 188 .voltage_mask = 0x1F, 189 .voltage_min = 1800000, 190 .voltage_max = 3400000, 191 .voltage_step = 100000, 192 .voltage_nstep = 17, 193 }, 194 { 195 .id = RK808_SWITCH1, 196 .name = "SWITCH_REG1", 197 .enable_reg = RK808_DCDC_EN, 198 .enable_mask = 0x20, 199 .voltage_min = 3000000, 200 .voltage_max = 3000000, 201 }, 202 { 203 .id = RK808_SWITCH2, 204 .name = "SWITCH_REG2", 205 .enable_reg = RK808_DCDC_EN, 206 .enable_mask = 0x40, 207 .voltage_min = 3000000, 208 .voltage_max = 3000000, 209 }, 210 }; 211 212 static int 213 rk808_probe(device_t dev) 214 { 215 if (!ofw_bus_status_okay(dev)) 216 return (ENXIO); 217 218 if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0) 219 return (ENXIO); 220 221 device_set_desc(dev, "RockChip RK808 PMIC"); 222 return (BUS_PROBE_DEFAULT); 223 } 224 225 static int 226 rk808_attach(device_t dev) 227 { 228 struct rk8xx_softc *sc; 229 230 sc = device_get_softc(dev); 231 sc->dev = dev; 232 233 sc->type = ofw_bus_search_compatible(dev, compat_data)->ocd_data; 234 235 sc->regdefs = rk808_regdefs; 236 sc->nregs = nitems(rk808_regdefs); 237 sc->rtc_regs.secs = RK808_RTC_SECS; 238 sc->rtc_regs.secs_mask = RK808_RTC_SECS_MASK; 239 sc->rtc_regs.minutes = RK808_RTC_MINUTES; 240 sc->rtc_regs.minutes_mask = RK808_RTC_MINUTES_MASK; 241 sc->rtc_regs.hours = RK808_RTC_HOURS; 242 sc->rtc_regs.hours_mask = RK808_RTC_HOURS_MASK; 243 sc->rtc_regs.days = RK808_RTC_DAYS; 244 sc->rtc_regs.days_mask = RK808_RTC_DAYS_MASK; 245 sc->rtc_regs.months = RK808_RTC_MONTHS; 246 sc->rtc_regs.months_mask = RK808_RTC_MONTHS_MASK; 247 sc->rtc_regs.years = RK808_RTC_YEARS; 248 sc->rtc_regs.weeks = RK808_RTC_WEEKS_MASK; 249 sc->rtc_regs.ctrl = RK808_RTC_CTRL; 250 sc->rtc_regs.ctrl_stop_mask = RK808_RTC_CTRL_STOP; 251 sc->rtc_regs.ctrl_ampm_mask = RK808_RTC_AMPM_MODE; 252 sc->rtc_regs.ctrl_gettime_mask = RK808_RTC_GET_TIME; 253 sc->rtc_regs.ctrl_readsel_mask = RK808_RTC_READSEL; 254 sc->dev_ctrl.dev_ctrl_reg = RK808_DEV_CTRL; 255 sc->dev_ctrl.pwr_off_mask = RK808_DEV_CTRL_OFF; 256 257 return (rk8xx_attach(sc)); 258 } 259 260 static device_method_t rk808_methods[] = { 261 DEVMETHOD(device_probe, rk808_probe), 262 DEVMETHOD(device_attach, rk808_attach), 263 264 DEVMETHOD_END 265 }; 266 267 DEFINE_CLASS_1(rk808_pmu, rk808_driver, rk808_methods, 268 sizeof(struct rk8xx_softc), rk8xx_driver); 269 270 static devclass_t rk808_devclass; 271 272 EARLY_DRIVER_MODULE(rk808_pmu, iicbus, rk808_driver, rk808_devclass, 0, 0, 273 BUS_PASS_INTERRUPT + BUS_PASS_ORDER_LAST); 274 EARLY_DRIVER_MODULE(iicbus, rk808_pmu, iicbus_driver, iicbus_devclass, 0, 0, 275 BUS_PASS_INTERRUPT + BUS_PASS_ORDER_LAST); 276 MODULE_DEPEND(rk808_pmu, iicbus, IICBUS_MINVER, IICBUS_PREFVER, IICBUS_MAXVER); 277 MODULE_VERSION(rk808_pmu, 1); 278