c214a270f5
This is required for FDT's standard "reg-io-width" property (similar to "reg-shift" property) found in many DTS files. This fixes operation on Altera Arria 10 SOC Development Kit, where standard ns8250 uart allows 4-byte access only. Reviewed by: kan, marcel Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D9785
81 lines
2.7 KiB
C
81 lines
2.7 KiB
C
/*-
|
|
* Copyright (c) 2006 Raza Microelectronics
|
|
* 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 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/systm.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
#include <sys/lock.h>
|
|
#include <sys/mutex.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <sys/rman.h>
|
|
#include <machine/resource.h>
|
|
#include <mips/rmi/iomap.h>
|
|
#include <dev/uart/uart.h>
|
|
#include <dev/uart/uart_bus.h>
|
|
#include <dev/uart/uart_cpu.h>
|
|
|
|
static int uart_iodi_probe(device_t dev);
|
|
|
|
static device_method_t uart_iodi_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, uart_iodi_probe),
|
|
DEVMETHOD(device_attach, uart_bus_attach),
|
|
DEVMETHOD(device_detach, uart_bus_detach),
|
|
{0, 0}
|
|
};
|
|
|
|
static driver_t uart_iodi_driver = {
|
|
uart_driver_name,
|
|
uart_iodi_methods,
|
|
sizeof(struct uart_softc),
|
|
};
|
|
|
|
|
|
extern SLIST_HEAD(uart_devinfo_list, uart_devinfo) uart_sysdevs;
|
|
static int
|
|
uart_iodi_probe(device_t dev)
|
|
{
|
|
struct uart_softc *sc;
|
|
sc = device_get_softc(dev);
|
|
sc->sc_sysdev = SLIST_FIRST(&uart_sysdevs);
|
|
sc->sc_class = &uart_ns8250_class;
|
|
bcopy(&sc->sc_sysdev->bas, &sc->sc_bas, sizeof(sc->sc_bas));
|
|
sc->sc_sysdev->bas.bst = rmi_bus_space;
|
|
sc->sc_sysdev->bas.bsh = MIPS_PHYS_TO_KSEG1(XLR_UART0ADDR);
|
|
sc->sc_bas.bst = rmi_bus_space;
|
|
sc->sc_bas.bsh = MIPS_PHYS_TO_KSEG1(XLR_UART0ADDR);
|
|
/* regshft = 2, rclk = 66000000, rid = 0, chan = 0 */
|
|
return (uart_bus_probe(dev, 2, 0, 66000000, 0, 0));
|
|
}
|
|
|
|
DRIVER_MODULE(uart, iodi, uart_iodi_driver, uart_devclass, 0, 0);
|