2 * Copyright (c) 2013 Ruslan Bukin <br@bsdpad.com>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * Vybrid Family Miscellaneous System Control Module (MSCM)
29 * Chapter 66, Vybrid Reference Manual, Rev. 5, 07/2013
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
35 #include <sys/param.h>
36 #include <sys/systm.h>
38 #include <sys/kernel.h>
39 #include <sys/module.h>
40 #include <sys/malloc.h>
42 #include <sys/timeet.h>
43 #include <sys/timetc.h>
44 #include <sys/watchdog.h>
46 #include <dev/fdt/fdt_common.h>
47 #include <dev/ofw/openfirm.h>
48 #include <dev/ofw/ofw_bus.h>
49 #include <dev/ofw/ofw_bus_subr.h>
51 #include <machine/bus.h>
52 #include <machine/cpu.h>
53 #include <machine/intr.h>
55 #include <arm/freescale/vybrid/vf_common.h>
57 #define VF_NINT 112 /* Total number of interrupts */
59 /* Int Router Shared Peripheral Routing Control */
60 #define MSCM_IRSPRC(n) (0x880 + 2 * n)
63 struct resource *res[1];
65 bus_space_handle_t bsh;
68 static struct resource_spec mscm_spec[] = {
69 { SYS_RES_MEMORY, 0, RF_ACTIVE },
74 mscm_probe(device_t dev)
77 if (!ofw_bus_status_okay(dev))
80 if (!ofw_bus_is_compatible(dev, "fsl,mvf600-mscm"))
83 device_set_desc(dev, "Vybrid Family Miscellaneous System Control Module");
84 return (BUS_PROBE_DEFAULT);
88 mscm_attach(device_t dev)
90 struct mscm_softc *sc;
93 sc = device_get_softc(dev);
95 if (bus_alloc_resources(dev, mscm_spec, sc->res)) {
96 device_printf(dev, "could not allocate resources\n");
100 /* Memory interface */
101 sc->bst = rman_get_bustag(sc->res[0]);
102 sc->bsh = rman_get_bushandle(sc->res[0]);
104 /* Route all the interrupts to CP0 */
105 for (i = 0; i < VF_NINT; i++)
106 WRITE2(sc, MSCM_IRSPRC(i), 1);
111 static device_method_t mscm_methods[] = {
112 DEVMETHOD(device_probe, mscm_probe),
113 DEVMETHOD(device_attach, mscm_attach),
117 static driver_t mscm_driver = {
120 sizeof(struct mscm_softc),
123 static devclass_t mscm_devclass;
125 DRIVER_MODULE(mscm, simplebus, mscm_driver, mscm_devclass, 0, 0);