arm/imx/imx51_pwm.c

1.1.6.2  tls /*	$NetBSD: imx51_pwm.c,v 1.1.6.2 2014/08/10 06:53:51 tls Exp $	*/
1.1.6.2  tls
1.1.6.2  tls /*-
1.1.6.2  tls  * Copyright (c) 2014  Genetec Corporation.  All rights reserved.
1.1.6.2  tls  * Written by Hashimoto Kenichi for Genetec Corporation.
1.1.6.2  tls  *
1.1.6.2  tls  * Redistribution and use in source and binary forms, with or without
1.1.6.2  tls  * modification, are permitted provided that the following conditions
1.1.6.2  tls  * are met:
1.1.6.2  tls  * 1. Redistributions of source code must retain the above copyright
1.1.6.2  tls  *    notice, this list of conditions and the following disclaimer.
1.1.6.2  tls  * 2. Redistributions in binary form must reproduce the above copyright
1.1.6.2  tls  *    notice, this list of conditions and the following disclaimer in the
1.1.6.2  tls  *    documentation and/or other materials provided with the distribution.
1.1.6.2  tls  *
1.1.6.2  tls  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
1.1.6.2  tls  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.1.6.2  tls  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.1.6.2  tls  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
1.1.6.2  tls  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1.1.6.2  tls  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1.1.6.2  tls  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.1.6.2  tls  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1.1.6.2  tls  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1.1.6.2  tls  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1.1.6.2  tls  * SUCH DAMAGE.
1.1.6.2  tls  */
1.1.6.2  tls
1.1.6.2  tls #include <sys/cdefs.h>
1.1.6.2  tls __KERNEL_RCSID(0, "$NetBSD: imx51_pwm.c,v 1.1.6.2 2014/08/10 06:53:51 tls Exp $");
1.1.6.2  tls
1.1.6.2  tls #include "locators.h"
1.1.6.2  tls #include "opt_imx.h"
1.1.6.2  tls
1.1.6.2  tls #include <sys/param.h>
1.1.6.2  tls #include <sys/bus.h>
1.1.6.2  tls #include <sys/device.h>
1.1.6.2  tls
1.1.6.2  tls #include <arm/imx/imxpwmvar.h>
1.1.6.2  tls #include <arm/imx/imx51reg.h>
1.1.6.2  tls #include <arm/imx/imx51var.h>
1.1.6.2  tls #include <arm/imx/imx51_ccmvar.h>
1.1.6.2  tls
1.1.6.2  tls int
1.1.6.2  tls imxpwm_match(device_t parent, cfdata_t cf, void *aux)
1.1.6.2  tls {
1.1.6.2  tls 	struct axi_attach_args *aa = aux;
1.1.6.2  tls
1.1.6.2  tls 	switch (aa->aa_addr) {
1.1.6.2  tls 	case PWM1_BASE:
1.1.6.2  tls 	case PWM2_BASE:
1.1.6.2  tls 		return 1;
1.1.6.2  tls 	}
1.1.6.2  tls
1.1.6.2  tls 	return 0;
1.1.6.2  tls }
1.1.6.2  tls
1.1.6.2  tls void
1.1.6.2  tls imxpwm_attach(struct imxpwm_softc *sc, void *aux)
1.1.6.2  tls {
1.1.6.2  tls 	struct axi_attach_args *aa = aux;
1.1.6.2  tls
1.1.6.2  tls 	if (aa->aa_size == AXICF_SIZE_DEFAULT)
1.1.6.2  tls 		aa->aa_size = PWM_SIZE;
1.1.6.2  tls 	sc->sc_iot = aa->aa_iot;
1.1.6.2  tls 	sc->sc_intr = aa->aa_irq;
1.1.6.2  tls 	sc->sc_freq = imx51_get_clock(IMX51CLK_IPG_CLK_ROOT);
1.1.6.2  tls 	if (bus_space_map(aa->aa_iot, aa->aa_addr, aa->aa_size, 0, &sc->sc_ioh))
1.1.6.2  tls 		panic("%s: couldn't map", device_xname(sc->sc_dev));
1.1.6.2  tls 	imxpwm_attach_common(sc);
1.1.6.2  tls }