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mirror of https://git.FreeBSD.org/src.git synced 2024-11-28 08:02:54 +00:00
freebsd/sys/dev/dwc/if_dwc_socfpga.c
Emmanuel Vadot 1f469a9fc4 hwreset: Move reset code in dev/hwreset
We've removed kernel option EXT_RESOURCES almost two years ago.
While it was ok to have some code under a common 'extres' subdirectory
at first, we now have a lot of consumer of it and we made it mandatory
so no need to have it under a cryptic name.

Reviewed by:	imp
Sponsored by:   Beckhoff Automation GmbH & Co. KG
Differential Revision:	https://reviews.freebsd.org/D43192
2024-01-10 19:20:28 +01:00

108 lines
3.1 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2019 Ruslan Bukin <br@bsdpad.com>
*
* This software was developed by SRI International and the University of
* Cambridge Computer Laboratory (Department of Computer Science and
* Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the
* DARPA SSITH research programme.
*
* 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/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/module.h>
#include <net/if.h>
#include <machine/bus.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#include <dev/clk/clk.h>
#include <dev/hwreset/hwreset.h>
#include <dev/dwc/if_dwcvar.h>
#include <dev/dwc/dwc1000_reg.h>
#include "if_dwc_if.h"
static int
if_dwc_socfpga_probe(device_t dev)
{
if (!ofw_bus_status_okay(dev))
return (ENXIO);
if (!ofw_bus_is_compatible(dev, "altr,socfpga-stmmac"))
return (ENXIO);
device_set_desc(dev, "Altera SOCFPGA Ethernet MAC");
return (BUS_PROBE_DEFAULT);
}
static int
if_dwc_socfpga_init(device_t dev)
{
return (0);
}
static int
if_dwc_socfpga_mii_clk(device_t dev)
{
phandle_t root;
root = OF_finddevice("/");
if (ofw_bus_node_is_compatible(root, "altr,socfpga-stratix10"))
return (GMAC_MII_CLK_35_60M_DIV26);
/* Default value. */
return (GMAC_MII_CLK_25_35M_DIV16);
}
static device_method_t dwc_socfpga_methods[] = {
DEVMETHOD(device_probe, if_dwc_socfpga_probe),
DEVMETHOD(if_dwc_init, if_dwc_socfpga_init),
DEVMETHOD(if_dwc_mii_clk, if_dwc_socfpga_mii_clk),
DEVMETHOD_END
};
extern driver_t dwc_driver;
DEFINE_CLASS_1(dwc, dwc_socfpga_driver, dwc_socfpga_methods,
sizeof(struct dwc_softc), dwc_driver);
EARLY_DRIVER_MODULE(dwc_socfpga, simplebus, dwc_socfpga_driver, 0, 0,
BUS_PASS_SUPPORTDEV + BUS_PASS_ORDER_MIDDLE);
MODULE_DEPEND(dwc_socfpga, dwc, 1, 1, 1);