af3dc4a7ca
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
151 lines
4.0 KiB
C
151 lines
4.0 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2013 Ruslan Bukin <br@bsdpad.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Vybrid Family System Reset Controller (SRC)
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* Chapter 18, Vybrid Reference Manual, Rev. 5, 07/2013
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/malloc.h>
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#include <sys/rman.h>
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#include <sys/timeet.h>
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#include <sys/timetc.h>
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#include <sys/watchdog.h>
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#include <dev/ofw/openfirm.h>
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#include <dev/ofw/ofw_bus.h>
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#include <dev/ofw/ofw_bus_subr.h>
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#include <machine/bus.h>
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#include <machine/cpu.h>
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#include <machine/intr.h>
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#include <arm/freescale/vybrid/vf_src.h>
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#include <arm/freescale/vybrid/vf_common.h>
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#define SRC_SCR 0x00 /* SRC Control Register */
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#define SRC_SBMR1 0x04 /* SRC Boot Mode Register 1 */
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#define SRC_SRSR 0x08 /* SRC Status Register */
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#define SRC_SECR 0x0C /* SRC_SECR */
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#define SRC_SICR 0x14 /* SRC Reset Interrupt Configuration Register */
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#define SRC_SIMR 0x18 /* SRC Interrupt Masking Register */
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#define SRC_SBMR2 0x1C /* SRC Boot Mode Register 2 */
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#define SRC_GPR0 0x20 /* General Purpose Register */
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#define SRC_GPR1 0x24 /* General Purpose Register */
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#define SRC_GPR2 0x28 /* General Purpose Register */
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#define SRC_GPR3 0x2C /* General Purpose Register */
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#define SRC_GPR4 0x30 /* General Purpose Register */
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#define SRC_MISC0 0x4C /* MISC0 */
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#define SRC_MISC1 0x50 /* MISC1 */
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#define SRC_MISC2 0x54 /* MISC2 */
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#define SRC_MISC3 0x58 /* MISC3 */
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struct src_softc {
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struct resource *res[1];
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bus_space_tag_t bst;
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bus_space_handle_t bsh;
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};
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struct src_softc *src_sc;
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static struct resource_spec src_spec[] = {
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{ SYS_RES_MEMORY, 0, RF_ACTIVE },
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{ -1, 0 }
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};
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int
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src_swreset(void)
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{
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if (src_sc == NULL)
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return (1);
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WRITE4(src_sc, SRC_SCR, SW_RST);
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return (0);
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}
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static int
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src_probe(device_t dev)
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{
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if (!ofw_bus_status_okay(dev))
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return (ENXIO);
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if (!ofw_bus_is_compatible(dev, "fsl,mvf600-src"))
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return (ENXIO);
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device_set_desc(dev, "Vybrid Family System Reset Controller");
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return (BUS_PROBE_DEFAULT);
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}
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static int
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src_attach(device_t dev)
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{
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struct src_softc *sc;
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sc = device_get_softc(dev);
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if (bus_alloc_resources(dev, src_spec, sc->res)) {
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device_printf(dev, "could not allocate resources\n");
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return (ENXIO);
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}
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/* Memory interface */
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sc->bst = rman_get_bustag(sc->res[0]);
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sc->bsh = rman_get_bushandle(sc->res[0]);
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src_sc = sc;
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return (0);
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}
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static device_method_t src_methods[] = {
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DEVMETHOD(device_probe, src_probe),
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DEVMETHOD(device_attach, src_attach),
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{ 0, 0 }
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};
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static driver_t src_driver = {
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"src",
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src_methods,
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sizeof(struct src_softc),
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};
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static devclass_t src_devclass;
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DRIVER_MODULE(src, simplebus, src_driver, src_devclass, 0, 0);
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