aeefab2b98
uart_ixp425_probe() and uart_cpu_getdev(). Change uart_cpu_getdev() to use hints to find the console. Reviewed by: marcel
97 lines
2.9 KiB
C
97 lines
2.9 KiB
C
/*-
|
|
* Copyright (c) 2003 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 <sys/bus.h>
|
|
#include <sys/cons.h>
|
|
#include <machine/bus.h>
|
|
|
|
#include <dev/uart/uart.h>
|
|
#include <dev/uart/uart_cpu.h>
|
|
|
|
#include <arm/xscale/ixp425/ixp425reg.h>
|
|
#include <arm/xscale/ixp425/ixp425var.h>
|
|
|
|
bus_space_tag_t uart_bus_space_io;
|
|
bus_space_tag_t uart_bus_space_mem;
|
|
|
|
int
|
|
uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2)
|
|
{
|
|
return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0);
|
|
}
|
|
|
|
int
|
|
uart_cpu_getdev(int devtype, struct uart_devinfo *di)
|
|
{
|
|
uint32_t i, ivar, vaddr;
|
|
|
|
/*
|
|
* Scan the hints. The IXP425 only have 2 serial ports, so only
|
|
* scan them.
|
|
*/
|
|
for (i = 0; i < 2; i++) {
|
|
if (resource_int_value("uart", i, "flags", &ivar))
|
|
continue;
|
|
if (devtype == UART_DEV_CONSOLE && !UART_FLAGS_CONSOLE(ivar))
|
|
continue;
|
|
if (devtype == UART_DEV_DBGPORT && !UART_FLAGS_DBGPORT(ivar))
|
|
continue;
|
|
/*
|
|
* We have a possible device. Make sure it's enabled and
|
|
* that we have an I/O port.
|
|
*/
|
|
if (resource_int_value("uart", i, "disabled", &ivar) == 0 &&
|
|
ivar != 0)
|
|
continue;
|
|
if (resource_int_value("uart", i, "addr", &ivar) != 0 ||
|
|
ivar == 0)
|
|
continue;
|
|
/* Got it. Fill in the instance and return it. */
|
|
di->ops = uart_getops(&uart_ns8250_class);
|
|
di->bas.chan = 0;
|
|
di->bas.bst = &ixp425_a4x_bs_tag;
|
|
di->bas.regshft = 0;
|
|
di->bas.rclk = IXP425_UART_FREQ;
|
|
di->baudrate = 115200;
|
|
di->databits = 8;
|
|
di->stopbits = 1;
|
|
di->parity = UART_PARITY_NONE;
|
|
uart_bus_space_io = NULL;
|
|
uart_bus_space_mem = &ixp425_a4x_bs_tag;
|
|
|
|
getvbase(ivar, IXP425_REG_SIZE, &vaddr);
|
|
di->bas.bsh = vaddr;
|
|
return (0);
|
|
}
|
|
|
|
return (ENXIO);
|
|
}
|