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/*-
* Copyright (c) 2006 Kevin Lo. 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 ``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 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: src/sys/arm/xscale/ixp425/uart_bus_ixp425.c,v 1.4.2.1.6.1 2010/12/21 17:09:25 kensmith Exp $");
#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 <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <dev/pci/pcivar.h>
#include <dev/ic/ns16550.h>
#include <dev/uart/uart.h>
#include <dev/uart/uart_bus.h>
#include <dev/uart/uart_cpu.h>
#include <arm/xscale/ixp425/ixp425reg.h>
#include <arm/xscale/ixp425/ixp425var.h>
#include "uart_if.h"
static int uart_ixp425_probe(device_t dev);
static device_method_t uart_ixp425_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, uart_ixp425_probe),
DEVMETHOD(device_attach, uart_bus_attach),
DEVMETHOD(device_detach, uart_bus_detach),
{ 0, 0 }
};
static driver_t uart_ixp425_driver = {
uart_driver_name,
uart_ixp425_methods,
sizeof(struct uart_softc),
};
DRIVER_MODULE(uart, ixp, uart_ixp425_driver, uart_devclass, 0, 0);
static int
uart_ixp425_probe(device_t dev)
{
struct uart_softc *sc;
int unit = device_get_unit(dev);
u_int rclk;
sc = device_get_softc(dev);
sc->sc_class = &uart_ns8250_class;
if (resource_int_value("uart", unit, "rclk", &rclk))
rclk = IXP425_UART_FREQ;
if (bootverbose)
device_printf(dev, "rclk %u\n", rclk);
return uart_bus_probe(dev, 0, rclk, 0, 0);
}
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