2 * Copyright (c) 2014 Warner Losh. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 #include "opt_platform.h"
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
31 #include <sys/param.h>
33 #include <sys/kernel.h>
34 #include <sys/module.h>
35 #include <sys/resource.h>
36 #include <sys/systm.h>
39 #include <machine/bus.h>
41 #include <arm/at91/at91var.h>
42 #include <arm/at91/at91_aicreg.h>
45 #include <dev/ofw/ofw_bus.h>
46 #include <dev/ofw/ofw_bus_subr.h>
50 struct resource *mem_res; /* Memory resource */
55 at91_sdramc_probe(device_t dev)
58 if (!ofw_bus_is_compatible(dev, "atmel,at91sam9260-sdramc"))
61 device_set_desc(dev, "SDRAMC");
66 at91_sdramc_attach(device_t dev)
69 struct sdramc_softc *sc;
71 sc = device_get_softc(dev);
75 sc->mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
78 if (sc->mem_res == NULL)
79 panic("couldn't allocate register resources");
84 static device_method_t at91_sdramc_methods[] = {
85 DEVMETHOD(device_probe, at91_sdramc_probe),
86 DEVMETHOD(device_attach, at91_sdramc_attach),
90 static driver_t at91_sdramc_driver = {
93 sizeof(struct sdramc_softc),
96 static devclass_t at91_sdramc_devclass;
99 DRIVER_MODULE(at91_sdramc, simplebus, at91_sdramc_driver, at91_sdramc_devclass, NULL,
102 DRIVER_MODULE(at91_sdramc, atmelarm, at91_sdramc_driver, at91_sdramc_devclass, NULL,