f75615f26f
drivers. The BMIPS32/BMIPS3300 cores use a register layout distinct from the MIPS74K core, and are only found on siba(4) devices. Reviewed by: mizhka Approved by: adrian (mentor) Differential Revision: https://reviews.freebsd.org/D7791
128 lines
3.6 KiB
C
128 lines
3.6 KiB
C
/*-
|
|
* Copyright (c) 2016 Michael Zhilin <mizhka@gmail.com>
|
|
* Copyright (c) 2016 Landon Fuller <landonf@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,
|
|
* without modification.
|
|
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
|
|
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
|
|
* redistribution must be conditioned upon including a substantially
|
|
* similar Disclaimer requirement for further binary redistribution.
|
|
*
|
|
* NO WARRANTY
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
|
|
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
|
|
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/module.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <sys/rman.h>
|
|
#include <machine/resource.h>
|
|
|
|
#include <dev/bhnd/bhnd.h>
|
|
|
|
#include "bcm_mips74kreg.h"
|
|
|
|
/*
|
|
* Broadcom MIPS74K Core
|
|
*
|
|
* These cores are only found on bcma(4) chipsets, allowing
|
|
* us to assume the availability of bcma interrupt registers.
|
|
*/
|
|
|
|
static const struct bhnd_device bcm_mips74k_devs[] = {
|
|
BHND_DEVICE(MIPS, MIPS74K, NULL, NULL, BHND_DF_SOC),
|
|
BHND_DEVICE_END
|
|
};
|
|
|
|
struct bcm_mips74k_softc {
|
|
device_t dev;
|
|
struct resource *mem_res;
|
|
int mem_rid;
|
|
};
|
|
|
|
static int
|
|
bcm_mips74k_probe(device_t dev)
|
|
{
|
|
const struct bhnd_device *id;
|
|
|
|
id = bhnd_device_lookup(dev, bcm_mips74k_devs,
|
|
sizeof(bcm_mips74k_devs[0]));
|
|
if (id == NULL)
|
|
return (ENXIO);
|
|
|
|
bhnd_set_default_core_desc(dev);
|
|
return (BUS_PROBE_DEFAULT);
|
|
}
|
|
|
|
static int
|
|
bcm_mips74k_attach(device_t dev)
|
|
{
|
|
struct bcm_mips74k_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
sc->dev = dev;
|
|
|
|
/* Allocate bus resources */
|
|
sc->mem_rid = 0;
|
|
sc->mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid,
|
|
RF_ACTIVE);
|
|
if (sc->mem_res == NULL)
|
|
return (ENXIO);
|
|
|
|
/* Route MIPS timer to IRQ5 */
|
|
bus_write_4(sc->mem_res, BCM_MIPS74K_INTR5_SEL,
|
|
(1<<BCM_MIPS74K_TIMER_IVEC));
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
bcm_mips74k_detach(device_t dev)
|
|
{
|
|
struct bcm_mips74k_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem_res);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static device_method_t bcm_mips74k_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, bcm_mips74k_probe),
|
|
DEVMETHOD(device_attach, bcm_mips74k_attach),
|
|
DEVMETHOD(device_detach, bcm_mips74k_detach),
|
|
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
static devclass_t bcm_mips_devclass;
|
|
|
|
DEFINE_CLASS_0(bcm_mips, bcm_mips74k_driver, bcm_mips74k_methods, sizeof(struct bcm_mips74k_softc));
|
|
EARLY_DRIVER_MODULE(bcm_mips74k, bhnd, bcm_mips74k_driver, bcm_mips_devclass, 0, 0, BUS_PASS_CPU + BUS_PASS_ORDER_EARLY);
|
|
MODULE_VERSION(bcm_mips74k, 1);
|
|
MODULE_DEPEND(bcm_mips74k, bhnd, 1, 1, 1);
|