mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-21 11:13:30 +00:00
108 lines
3.0 KiB
C
108 lines
3.0 KiB
C
/*-
|
|
* Copyright (c) 2006 Marcel Moolenaar
|
|
* 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 <machine/bus.h>
|
|
|
|
#include <dev/ofw/openfirm.h>
|
|
#include <machine/ofw_machdep.h>
|
|
|
|
#include <dev/uart/uart.h>
|
|
#include <dev/uart/uart_cpu.h>
|
|
|
|
bus_space_tag_t uart_bus_space_io = PPC_BUS_SPACE_IO;
|
|
bus_space_tag_t uart_bus_space_mem = PPC_BUS_SPACE_MEM;
|
|
|
|
int
|
|
uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2)
|
|
{
|
|
|
|
return ((b1->bsh == b2->bsh) ? 1 : 0);
|
|
}
|
|
|
|
int
|
|
uart_cpu_getdev(int devtype, struct uart_devinfo *di)
|
|
{
|
|
char buf[64];
|
|
phandle_t input, opts;
|
|
int error;
|
|
|
|
if ((opts = OF_finddevice("/options")) == -1)
|
|
return (ENXIO);
|
|
switch (devtype) {
|
|
case UART_DEV_CONSOLE:
|
|
if (OF_getprop(opts, "input-device", buf, sizeof(buf)) == -1)
|
|
return (ENXIO);
|
|
input = OF_finddevice(buf);
|
|
if (input == -1)
|
|
return (ENXIO);
|
|
if (OF_getprop(opts, "output-device", buf, sizeof(buf)) == -1)
|
|
return (ENXIO);
|
|
if (OF_finddevice(buf) != input)
|
|
return (ENXIO);
|
|
break;
|
|
case UART_DEV_DBGPORT:
|
|
if (!getenv_string("hw.uart.dbgport", buf, sizeof(buf)))
|
|
return (ENXIO);
|
|
input = OF_finddevice(buf);
|
|
if (input == -1)
|
|
return (ENXIO);
|
|
break;
|
|
default:
|
|
return (EINVAL);
|
|
}
|
|
|
|
if (OF_getprop(input, "device_type", buf, sizeof(buf)) == -1)
|
|
return (ENXIO);
|
|
if (strcmp(buf, "serial") != 0)
|
|
return (ENXIO);
|
|
if (OF_getprop(input, "name", buf, sizeof(buf)) == -1)
|
|
return (ENXIO);
|
|
if (strcmp(buf, "ch-a"))
|
|
return (ENXIO);
|
|
|
|
error = OF_decode_addr(input, 0, &di->bas.bst, &di->bas.bsh);
|
|
if (error)
|
|
return (error);
|
|
|
|
di->ops = uart_z8530_ops;
|
|
|
|
di->bas.rclk = 230400;
|
|
di->bas.chan = 1;
|
|
di->bas.regshft = 4;
|
|
|
|
di->baudrate = 0;
|
|
di->databits = 8;
|
|
di->stopbits = 1;
|
|
di->parity = UART_PARITY_NONE;
|
|
return (0);
|
|
}
|