157 lines
3.6 KiB
C
157 lines
3.6 KiB
C
/*-
|
|
* Copyright (c) 2015 Semihalf.
|
|
* Copyright (c) 2015 Stormshield.
|
|
* 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.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/rman.h>
|
|
#include <sys/types.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
#include <sys/resource.h>
|
|
#include <sys/systm.h>
|
|
|
|
#include <vm/vm.h>
|
|
#include <vm/pmap.h>
|
|
|
|
#include <machine/cpu.h>
|
|
#include <machine/fdt.h>
|
|
#include <machine/smp.h>
|
|
|
|
#include <dev/ofw/ofw_bus_subr.h>
|
|
|
|
#include <arm/mv/mvreg.h>
|
|
|
|
#include "pmsu.h"
|
|
|
|
static struct resource_spec pmsu_spec[] = {
|
|
{ SYS_RES_MEMORY, 0, RF_ACTIVE },
|
|
{ -1, 0 }
|
|
};
|
|
|
|
struct pmsu_softc {
|
|
device_t dev;
|
|
struct resource *res;
|
|
};
|
|
|
|
static int pmsu_probe(device_t dev);
|
|
static int pmsu_attach(device_t dev);
|
|
static int pmsu_detach(device_t dev);
|
|
|
|
static device_method_t pmsu_methods[] = {
|
|
DEVMETHOD(device_probe, pmsu_probe),
|
|
DEVMETHOD(device_attach, pmsu_attach),
|
|
DEVMETHOD(device_detach, pmsu_detach),
|
|
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t pmsu_driver = {
|
|
"pmsu",
|
|
pmsu_methods,
|
|
sizeof(struct pmsu_softc)
|
|
};
|
|
|
|
static devclass_t pmsu_devclass;
|
|
|
|
DRIVER_MODULE(pmsu, simplebus, pmsu_driver, pmsu_devclass, 0, 0);
|
|
DRIVER_MODULE(pmsu, ofwbus, pmsu_driver, pmsu_devclass, 0, 0);
|
|
|
|
static int
|
|
pmsu_probe(device_t dev)
|
|
{
|
|
|
|
if (!ofw_bus_status_okay(dev))
|
|
return (ENXIO);
|
|
|
|
if (!ofw_bus_is_compatible(dev, "marvell,armada-380-pmsu"))
|
|
return (ENXIO);
|
|
|
|
device_set_desc(dev, "Power Management Service Unit");
|
|
|
|
return (BUS_PROBE_DEFAULT);
|
|
}
|
|
|
|
static int
|
|
pmsu_attach(device_t dev)
|
|
{
|
|
struct pmsu_softc *sc;
|
|
int err;
|
|
|
|
sc = device_get_softc(dev);
|
|
sc->dev = dev;
|
|
|
|
err = bus_alloc_resources(dev, pmsu_spec, &sc->res);
|
|
if (err != 0) {
|
|
device_printf(dev, "could not allocate resources\n");
|
|
return (ENXIO);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
pmsu_detach(device_t dev)
|
|
{
|
|
struct pmsu_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
bus_release_resources(dev, pmsu_spec, &sc->res);
|
|
|
|
return (0);
|
|
}
|
|
|
|
#ifdef SMP
|
|
int
|
|
pmsu_boot_secondary_cpu(void)
|
|
{
|
|
bus_space_handle_t vaddr;
|
|
int rv;
|
|
|
|
rv = bus_space_map(fdtbus_bs_tag, (bus_addr_t)MV_PMSU_BASE, MV_PMSU_REGS_LEN,
|
|
0, &vaddr);
|
|
if (rv != 0)
|
|
return (rv);
|
|
|
|
/* Boot cpu1 */
|
|
bus_space_write_4(fdtbus_bs_tag, vaddr, PMSU_BOOT_ADDR_REDIRECT_OFFSET(1),
|
|
pmap_kextract((vm_offset_t)mpentry));
|
|
|
|
dcache_wbinv_poc_all();
|
|
dsb();
|
|
sev();
|
|
|
|
bus_space_unmap(fdtbus_bs_tag, vaddr, MV_PMSU_REGS_LEN);
|
|
|
|
return (0);
|
|
}
|
|
#endif
|