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am3359_cppi41.c
(5.26 KB)
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am335x_dmtimer.c
(11.24 KB)
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am335x_dmtpps.c
(16.64 KB)
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am335x_dmtreg.h
(4.19 KB)
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am335x_ecap.c
(5.09 KB)
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am335x_ehrpwm.c
(19.2 KB)
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am335x_gpio.c
(4.34 KB)
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am335x_lcd.c
(28.66 KB)
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am335x_lcd.h
(2.04 KB)
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am335x_lcd_syscons.c
(17.89 KB)
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am335x_musb.c
(12.23 KB)
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am335x_pmic.c
(10.12 KB)
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am335x_pwm.h
(1.55 KB)
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am335x_pwmss.c
(4.72 KB)
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am335x_reg.h
(1.72 KB)
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am335x_rtc.c
(6.47 KB)
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am335x_rtcreg.h
(2.76 KB)
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am335x_rtcvar.h
(1.48 KB)
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am335x_scm.c
(5.33 KB)
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am335x_scm.h
(2.02 KB)
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am335x_scm_padconf.c
(26.15 KB)
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am335x_scm_padconf.h
(2.1 KB)
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am335x_usb_phy.c
(3.3 KB)
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files.am335x
(852 B)
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std.am335x
(144 B)
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tda19988.c
(22.65 KB)
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tps65217x.h
(3.39 KB)
Editing: am335x_rtc.c
/*- * Copyright (c) 2015 Luiz Otavio O Souza <loos@FreeBSD.org> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include <sys/param.h> #include <sys/systm.h> #include <sys/bus.h> #include <sys/clock.h> #include <sys/kernel.h> #include <sys/lock.h> #include <sys/module.h> #include <sys/mutex.h> #include <sys/rman.h> #include <machine/bus.h> #include <dev/ofw/ofw_bus.h> #include <dev/ofw/ofw_bus_subr.h> #include <arm/ti/ti_sysc.h> #include <arm/ti/am335x/am335x_rtcvar.h> #include <arm/ti/am335x/am335x_rtcreg.h> #define RTC_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx) #define RTC_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx) #define RTC_LOCK_INIT(_sc) mtx_init(&(_sc)->sc_mtx, \ device_get_nameunit(_sc->sc_dev), "am335x_rtc", MTX_DEF) #define RTC_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->sc_mtx) #define RTC_READ4(_sc, reg) \ bus_read_4((_sc)->sc_mem_res, reg) #define RTC_WRITE4(_sc, reg, value) \ bus_write_4((_sc)->sc_mem_res, reg, value) #define RTC_MAXIRQS 2 struct am335x_rtc_softc { device_t sc_dev; struct mtx sc_mtx; struct resource *sc_irq_res[RTC_MAXIRQS]; struct resource *sc_mem_res; }; static struct am335x_rtc_softc *rtc_sc = NULL; static struct resource_spec am335x_rtc_irq_spec[] = { { SYS_RES_IRQ, 0, RF_ACTIVE }, { SYS_RES_IRQ, 1, RF_ACTIVE }, { -1, 0, 0 } }; static int am335x_rtc_probe(device_t dev) { if (!ofw_bus_status_okay(dev)) return (ENXIO); if (!ofw_bus_is_compatible(dev, "ti,da830-rtc")) return (ENXIO); device_set_desc(dev, "AM335x RTC (power management mode)"); return (BUS_PROBE_DEFAULT); } static int am335x_rtc_attach(device_t dev) { int rid; struct am335x_rtc_softc *sc; uint32_t rev; if (rtc_sc != NULL) return (ENXIO); rtc_sc = sc = device_get_softc(dev); sc->sc_dev = dev; rid = 0; sc->sc_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE); if (!sc->sc_mem_res) { device_printf(dev, "cannot allocate memory resources\n"); return (ENXIO); } if (bus_alloc_resources(dev, am335x_rtc_irq_spec, sc->sc_irq_res) != 0) { bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->sc_mem_res); device_printf(dev, "cannot allocate irq resources\n"); return (ENXIO); } RTC_LOCK_INIT(sc); /* Enable the RTC module. */ ti_sysc_clock_enable(device_get_parent(dev)); rev = RTC_READ4(sc, RTC_REVISION); device_printf(dev, "AM335X RTC v%d.%d.%d\n", (rev >> 8) & 0x7, (rev >> 6) & 0x3, rev & 0x3f); /* Unlock the RTC. */ RTC_WRITE4(sc, RTC_KICK0R, RTC_KICK0R_PASS); RTC_WRITE4(sc, RTC_KICK1R, RTC_KICK1R_PASS); /* Stop the RTC, we don't need it right now. */ RTC_WRITE4(sc, RTC_CTRL, 0); /* Disable interrupts. */ RTC_WRITE4(sc, RTC_INTR, 0); /* Ack any pending interrupt. */ RTC_WRITE4(sc, RTC_STATUS, RTC_STATUS_ALARM2 | RTC_STATUS_ALARM); /* Enable external clock (xtal) and 32 kHz clock. */ RTC_WRITE4(sc, RTC_OSC, RTC_OSC_32KCLK_EN | RTC_OSC_32KCLK_SEL); /* Enable pmic_pwr_enable. */ RTC_WRITE4(sc, RTC_PMIC, PMIC_PWR_ENABLE); return (0); } static int am335x_rtc_detach(device_t dev) { struct am335x_rtc_softc *sc; sc = device_get_softc(dev); if (sc->sc_irq_res[0] != NULL) bus_release_resources(dev, am335x_rtc_irq_spec, sc->sc_irq_res); if (sc->sc_mem_res) bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->sc_mem_res); RTC_LOCK_DESTROY(sc); return (0); } void am335x_rtc_pmic_pwr_toggle(void) { int timeout; struct clocktime ct; struct timespec ts; /* * We stop the RTC so we don't need to check the STATUS.BUSY bit * before update ALARM2 registers. */ timeout = 10; RTC_WRITE4(rtc_sc, RTC_CTRL, 0); while (--timeout && RTC_READ4(rtc_sc, RTC_STATUS) & RTC_STATUS_RUN) DELAY(100); if (timeout == 0) { device_printf(rtc_sc->sc_dev, "RTC does not stop.\n"); return; } /* Program the ALARM2 to fire in 2 seconds. */ ct.dow = 0; ct.nsec = 0; ct.sec = FROMBCD(RTC_READ4(rtc_sc, RTC_SECONDS) & 0x7f); ct.min = FROMBCD(RTC_READ4(rtc_sc, RTC_MINUTES) & 0x7f); ct.hour = FROMBCD(RTC_READ4(rtc_sc, RTC_HOURS) & 0x3f); ct.day = FROMBCD(RTC_READ4(rtc_sc, RTC_DAYS) & 0x3f); ct.mon = FROMBCD(RTC_READ4(rtc_sc, RTC_MONTHS) & 0x1f); ct.year = FROMBCD(RTC_READ4(rtc_sc, RTC_YEARS) & 0xff); ct.year += POSIX_BASE_YEAR; clock_ct_to_ts(&ct, &ts); ts.tv_sec += 2; clock_ts_to_ct(&ts, &ct); RTC_WRITE4(rtc_sc, RTC_ALARM2_SECONDS, TOBCD(ct.sec)); RTC_WRITE4(rtc_sc, RTC_ALARM2_MINUTES, TOBCD(ct.min)); RTC_WRITE4(rtc_sc, RTC_ALARM2_HOURS, TOBCD(ct.hour)); RTC_WRITE4(rtc_sc, RTC_ALARM2_DAYS, TOBCD(ct.day)); RTC_WRITE4(rtc_sc, RTC_ALARM2_MONTHS, TOBCD(ct.mon)); RTC_WRITE4(rtc_sc, RTC_ALARM2_YEARS, TOBCD(ct.year - POSIX_BASE_YEAR)); /* Enable ALARM2 interrupt. */ RTC_WRITE4(rtc_sc, RTC_INTR, RTC_INTR_ALARM2); /* Start count. */ RTC_WRITE4(rtc_sc, RTC_CTRL, RTC_CTRL_RUN); } static device_method_t am335x_rtc_methods[] = { DEVMETHOD(device_probe, am335x_rtc_probe), DEVMETHOD(device_attach, am335x_rtc_attach), DEVMETHOD(device_detach, am335x_rtc_detach), DEVMETHOD_END }; static driver_t am335x_rtc_driver = { "am335x_rtc", am335x_rtc_methods, sizeof(struct am335x_rtc_softc), }; static devclass_t am335x_rtc_devclass; DRIVER_MODULE(am335x_rtc, simplebus, am335x_rtc_driver, am335x_rtc_devclass, 0, 0); MODULE_VERSION(am335x_rtc, 1); MODULE_DEPEND(am335x_rtc, simplebus, 1, 1, 1); MODULE_DEPEND(am335x_rtc, ti_sysc, 1, 1, 1);
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