eb7da2ff3a
Add CRU (Clock and Reset Unit) driver for RK3399. Add support in rk_pinctrl driver. Submitted by: Greg V <greg@unrelenting.technology> (Original version) Differential Revision: https://reviews.freebsd.org/D16732 MFC after: 1 month
86 lines
2.7 KiB
C
86 lines
2.7 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
|
*
|
|
* Copyright (c) 2018 Emmanuel Vadot <manu@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.
|
|
* 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/kernel.h>
|
|
#include <sys/module.h>
|
|
#include <sys/mutex.h>
|
|
#include <sys/rman.h>
|
|
#include <machine/bus.h>
|
|
|
|
#include <dev/ofw/openfirm.h>
|
|
#include <dev/ofw/ofw_bus.h>
|
|
#include <dev/ofw/ofw_bus_subr.h>
|
|
|
|
#include <dev/extres/syscon/syscon.h>
|
|
#include <dev/extres/syscon/syscon_generic.h>
|
|
|
|
#include "opt_soc.h"
|
|
|
|
static struct ofw_compat_data compat_data[] = {
|
|
#ifdef SOC_ROCKCHIP_RK3328
|
|
{"rockchip,rk3328-grf", 1},
|
|
#endif
|
|
#ifdef SOC_ROCKCHIP_RK3399
|
|
{"rockchip,rk3399-grf", 1},
|
|
{"rockchip,rk3399-pmugrf", 1},
|
|
#endif
|
|
{NULL, 0}
|
|
};
|
|
|
|
static int
|
|
rk_grf_probe(device_t dev)
|
|
{
|
|
|
|
if (!ofw_bus_status_okay(dev))
|
|
return (ENXIO);
|
|
if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
|
|
return (ENXIO);
|
|
|
|
device_set_desc(dev, "RockChip General Register Files");
|
|
return (BUS_PROBE_DEFAULT);
|
|
}
|
|
|
|
static device_method_t rk_grf_methods[] = {
|
|
DEVMETHOD(device_probe, rk_grf_probe),
|
|
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
DEFINE_CLASS_1(rk_grf, rk_grf_driver, rk_grf_methods,
|
|
sizeof(struct syscon_generic_softc), syscon_generic_driver);
|
|
|
|
static devclass_t rk_grf_devclass;
|
|
EARLY_DRIVER_MODULE(rk_grf, simplebus, rk_grf_driver, rk_grf_devclass,
|
|
0, 0, BUS_PASS_BUS + BUS_PASS_ORDER_MIDDLE);
|
|
MODULE_VERSION(rk_grf, 1);
|