freebsd-skq/sys/dev/uart/uart_cpu_mv.c
Marcel Moolenaar 85fc5c3b93 Move the memory layout definitions and logic from mvreg.h to mvwin.h
so that it isn't exposured unless needed. In particular this means
that it's easier to tune the memory layout based on board details.
While here, remove inclusion of <machine/intr.h> from mvreg.h. This
also contains exposure to SoC specifics in MI drivers, because NIRQ
depends on the SoC.
2009-06-12 20:00:38 +00:00

93 lines
2.8 KiB
C

/*-
* Copyright (C) 2007 MARVELL INTERNATIONAL LTD.
* All rights reserved.
*
* Developed by Semihalf.
*
* 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.
* 3. Neither the name of MARVELL nor the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``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 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 "opt_uart.h"
#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/mv/mvreg.h>
#include <arm/mv/mvvar.h>
#include <arm/mv/mvwin.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)
{
struct uart_class *class = &uart_ns8250_class;
/*
* If env specification for UART exists it takes precedence:
* hw.uart.console="mm:0xf1012000" or similar
*/
if (uart_getenv(devtype, di, class) == 0)
return (0);
/*
* Fall back to default UART0 console settings
*/
di->ops = uart_getops(class);
di->bas.chan = 0;
di->bas.bst = obio_tag;
if (bus_space_map(di->bas.bst, MV_UART0_BASE, MV_UART_SIZE,
0, &di->bas.bsh) != 0)
return (ENXIO);
di->baudrate = 0;
di->bas.regshft = 2;
di->bas.rclk = get_tclk();
di->databits = 8;
di->stopbits = 1;
di->parity = UART_PARITY_NONE;
uart_bus_space_mem = obio_tag;
uart_bus_space_io = NULL;
return (0);
}