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/eventhandler.h> 35 #include <sys/kernel.h> 36 #include <sys/module.h> 37 #include <sys/reboot.h> 38 #include <sys/mutex.h> 39 #include <sys/rman.h> 40 #include <machine/bus.h> 41 42 #include <dev/iicbus/iiconf.h> 43 #include <dev/iicbus/iicbus.h> 44 45 #include <dev/ofw/ofw_bus.h> 46 #include <dev/ofw/ofw_bus_subr.h> 47 48 #include <dev/iicbus/pmic/rockchip/rk805reg.h> 49 #include <dev/iicbus/pmic/rockchip/rk8xx.h> 50 51 static struct ofw_compat_data compat_data[] = { 52 {"rockchip,rk805", RK805}, 53 {NULL, 0} 54 }; 55 56 static struct rk8xx_regdef rk805_regdefs[] = { 57 { 58 .id = RK805_BUCK1, 59 .name = "DCDC_REG1", 60 .enable_reg = RK805_DCDC_EN, 61 .enable_mask = 0x11, 62 .voltage_reg = RK805_BUCK1_ON_VSEL, 63 .voltage_mask = 0x3F, 64 .voltage_min = 712500, 65 .voltage_max = 1450000, 66 .voltage_step = 12500, 67 .voltage_nstep = 64, 68 }, 69 { 70 .id = RK805_BUCK2, 71 .name = "DCDC_REG2", 72 .enable_reg = RK805_DCDC_EN, 73 .enable_mask = 0x22, 74 .voltage_reg = RK805_BUCK2_ON_VSEL, 75 .voltage_mask = 0x3F, 76 .voltage_min = 712500, 77 .voltage_max = 1450000, 78 .voltage_step = 12500, 79 .voltage_nstep = 64, 80 }, 81 { 82 .id = RK805_BUCK3, 83 .name = "DCDC_REG3", 84 .enable_reg = RK805_DCDC_EN, 85 .enable_mask = 0x44, 86 }, 87 { 88 .id = RK805_BUCK4, 89 .name = "DCDC_REG4", 90 .enable_reg = RK805_DCDC_EN, 91 .enable_mask = 0x88, 92 .voltage_reg = RK805_BUCK4_ON_VSEL, 93 .voltage_mask = 0x3F, 94 .voltage_min = 800000, 95 .voltage_max = 3500000, 96 .voltage_step = 100000, 97 .voltage_nstep = 28, 98 }, 99 { 100 .id = RK805_LDO1, 101 .name = "LDO_REG1", 102 .enable_reg = RK805_LDO_EN, 103 .enable_mask = 0x11, 104 .voltage_reg = RK805_LDO1_ON_VSEL, 105 .voltage_mask = 0x1F, 106 .voltage_min = 800000, 107 .voltage_max = 3400000, 108 .voltage_step = 100000, 109 .voltage_nstep = 27, 110 }, 111 { 112 .id = RK805_LDO2, 113 .name = "LDO_REG2", 114 .enable_reg = RK805_LDO_EN, 115 .enable_mask = 0x22, 116 .voltage_reg = RK805_LDO2_ON_VSEL, 117 .voltage_mask = 0x1F, 118 .voltage_min = 800000, 119 .voltage_max = 3400000, 120 .voltage_step = 100000, 121 .voltage_nstep = 27, 122 }, 123 { 124 .id = RK805_LDO3, 125 .name = "LDO_REG3", 126 .enable_reg = RK805_LDO_EN, 127 .enable_mask = 0x44, 128 .voltage_reg = RK805_LDO3_ON_VSEL, 129 .voltage_mask = 0x1F, 130 .voltage_min = 800000, 131 .voltage_max = 3400000, 132 .voltage_step = 100000, 133 .voltage_nstep = 27, 134 }, 135 }; 136 137 static int 138 rk805_probe(device_t dev) 139 { 140 if (!ofw_bus_status_okay(dev)) 141 return (ENXIO); 142 143 if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0) 144 return (ENXIO); 145 146 device_set_desc(dev, "RockChip RK805 PMIC"); 147 return (BUS_PROBE_DEFAULT); 148 } 149 150 static int 151 rk805_attach(device_t dev) 152 { 153 struct rk8xx_softc *sc; 154 155 sc = device_get_softc(dev); 156 sc->dev = dev; 157 158 sc->type = ofw_bus_search_compatible(dev, compat_data)->ocd_data; 159 160 sc->regdefs = rk805_regdefs; 161 sc->nregs = nitems(rk805_regdefs); 162 sc->rtc_regs.secs = RK805_RTC_SECS; 163 sc->rtc_regs.secs_mask = RK805_RTC_SECS_MASK; 164 sc->rtc_regs.minutes = RK805_RTC_MINUTES; 165 sc->rtc_regs.minutes_mask = RK805_RTC_MINUTES_MASK; 166 sc->rtc_regs.hours = RK805_RTC_HOURS; 167 sc->rtc_regs.hours_mask = RK805_RTC_HOURS_MASK; 168 sc->rtc_regs.days = RK805_RTC_DAYS; 169 sc->rtc_regs.days_mask = RK805_RTC_DAYS_MASK; 170 sc->rtc_regs.months = RK805_RTC_MONTHS; 171 sc->rtc_regs.months_mask = RK805_RTC_MONTHS_MASK; 172 sc->rtc_regs.years = RK805_RTC_YEARS; 173 sc->rtc_regs.weeks = RK805_RTC_WEEKS_MASK; 174 sc->rtc_regs.ctrl = RK805_RTC_CTRL; 175 sc->rtc_regs.ctrl_stop_mask = RK805_RTC_CTRL_STOP; 176 sc->rtc_regs.ctrl_ampm_mask = RK805_RTC_AMPM_MODE; 177 sc->rtc_regs.ctrl_gettime_mask = RK805_RTC_GET_TIME; 178 sc->rtc_regs.ctrl_readsel_mask = RK805_RTC_READSEL; 179 sc->dev_ctrl.dev_ctrl_reg = RK805_DEV_CTRL; 180 sc->dev_ctrl.pwr_off_mask = RK805_DEV_CTRL_OFF; 181 182 return (rk8xx_attach(sc)); 183 } 184 185 static device_method_t rk805_methods[] = { 186 DEVMETHOD(device_probe, rk805_probe), 187 DEVMETHOD(device_attach, rk805_attach), 188 189 DEVMETHOD_END 190 }; 191 192 DEFINE_CLASS_1(rk805_pmu, rk805_driver, rk805_methods, 193 sizeof(struct rk8xx_softc), rk8xx_driver); 194 195 EARLY_DRIVER_MODULE(rk805_pmu, iicbus, rk805_driver, 0, 0, 196 BUS_PASS_INTERRUPT + BUS_PASS_ORDER_LAST); 197 EARLY_DRIVER_MODULE(iicbus, rk805_pmu, iicbus_driver, 0, 0, 198 BUS_PASS_INTERRUPT + BUS_PASS_ORDER_LAST); 199 MODULE_DEPEND(rk805_pmu, iicbus, IICBUS_MINVER, IICBUS_PREFVER, IICBUS_MAXVER); 200 MODULE_VERSION(rk805_pmu, 1); 201