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 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 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