rk805.c

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    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);

Cache object: 94036e3d32fc35f2206e915d7ac5965f

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FreeBSD/Linux Kernel Cross Reference sys/dev/iicbus/pmic/rockchip/rk805.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/iicbus/pmic/rockchip/rk805.c