5910d436b2
This is an amalgam of a patch by Doug Ambrisko to generalize uart_acpi_find_device, imp moving the ACPI table to uart_dev_ns8250.c and advice by jhb to work around a bug in the EPYC 3151 BIOS (the BIOS incorrectly marks the serial ports as disabled) Reviewed by: imp MFC after: 8 weeks Differential Revision: https://reviews.freebsd.org/D16432
82 lines
2.4 KiB
C
82 lines
2.4 KiB
C
/*-
|
|
* Copyright (c) 2016 Michael Zhilin <mizhka@gmail.com>
|
|
*
|
|
* 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 "opt_uart.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
#include <sys/rman.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/resource.h>
|
|
|
|
#include <dev/uart/uart.h>
|
|
#include <dev/uart/uart_bus.h>
|
|
#include <dev/uart/uart_cpu.h>
|
|
|
|
#include "uart_if.h"
|
|
#include "bhnd_chipc_if.h"
|
|
|
|
#include "bcm_machdep.h"
|
|
|
|
|
|
static int
|
|
uart_chipc_probe(device_t dev)
|
|
{
|
|
struct uart_softc *sc;
|
|
u_int rclk;
|
|
|
|
sc = device_get_softc(dev);
|
|
sc->sc_class = &uart_ns8250_class;
|
|
|
|
rclk = bcm_get_uart_rclk(bcm_get_platform());
|
|
return (uart_bus_probe(dev, 0, 0, rclk, 0, 0, 0));
|
|
}
|
|
|
|
static device_method_t uart_chipc_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, uart_chipc_probe),
|
|
DEVMETHOD(device_attach, uart_bus_attach),
|
|
DEVMETHOD(device_detach, uart_bus_detach),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t uart_chipc_driver = {
|
|
uart_driver_name,
|
|
uart_chipc_methods,
|
|
sizeof(struct uart_softc),
|
|
};
|
|
|
|
DRIVER_MODULE(uart, bhnd_chipc, uart_chipc_driver, uart_devclass, 0, 0);
|