9722a61504
boards. This is enough to net-boot to multiuser. Also supported is the SMSC LAN91C111 parts used on the netCF, netDUO and netMMC add-on boards. I'll be putting some instructions on how to boot this on the Gumstix boards online soon. This is still fairly rough and will be refined over time but I felt it was better to get this out there where other people can help out.
88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
/*-
|
|
* Copyright (c) 2006 Benno Rice. 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("$FreeBSD$");
|
|
|
|
#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/uart/uart.h>
|
|
#include <dev/uart/uart_bus.h>
|
|
#include <dev/uart/uart_cpu.h>
|
|
|
|
#include <dev/ic/ns16550.h>
|
|
|
|
#include <arm/xscale/pxa/pxavar.h>
|
|
#include <arm/xscale/pxa/pxareg.h>
|
|
|
|
#include "uart_if.h"
|
|
|
|
#define PXA_UART_UUE 0x40 /* UART Unit Enable */
|
|
|
|
static int uart_pxa_probe(device_t dev);
|
|
|
|
static device_method_t uart_pxa_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, uart_pxa_probe),
|
|
DEVMETHOD(device_attach, uart_bus_attach),
|
|
DEVMETHOD(device_detach, uart_bus_detach),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t uart_pxa_driver = {
|
|
uart_driver_name,
|
|
uart_pxa_methods,
|
|
sizeof(struct uart_softc),
|
|
};
|
|
|
|
static int
|
|
uart_pxa_probe(device_t dev)
|
|
{
|
|
bus_space_handle_t base;
|
|
struct uart_softc *sc;
|
|
|
|
/* Check to see if the enable bit's on. */
|
|
base = (bus_space_handle_t)pxa_get_base(dev);
|
|
if ((bus_space_read_4(obio_tag, base,
|
|
(REG_IER << 2)) & PXA_UART_UUE) == 0)
|
|
return (ENXIO);
|
|
|
|
sc = device_get_softc(dev);
|
|
sc->sc_class = &uart_ns8250_class;
|
|
|
|
return(uart_bus_probe(dev, 2, PXA2X0_COM_FREQ, 0, 0));
|
|
}
|
|
|
|
DRIVER_MODULE(uart, pxa, uart_pxa_driver, uart_devclass, 0, 0);
|