152 lines
4.2 KiB
C
152 lines
4.2 KiB
C
/* $NetBSD: mtx-1.c,v 1.7 2011/07/10 00:03:52 matt Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2006 Itronix Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Written by Garrett D'Amore for Itronix Inc.
|
|
*
|
|
* 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. The name of Itronix Inc. may not be used to endorse
|
|
* or promote products derived from this software without specific
|
|
* prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``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 ITRONIX INC. 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>
|
|
__KERNEL_RCSID(0, "$NetBSD: mtx-1.c,v 1.7 2011/07/10 00:03:52 matt Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/bus.h>
|
|
|
|
#include <mips/locore.h>
|
|
|
|
#include <evbmips/alchemy/obiovar.h>
|
|
#include <evbmips/alchemy/board.h>
|
|
|
|
#define MTX1_RESET 0xE00001C
|
|
|
|
#define GET16(x) \
|
|
(*((volatile uint16_t *)MIPS_PHYS_TO_KSEG1(x)))
|
|
#define PUT16(x, v) \
|
|
(*((volatile uint16_t *)MIPS_PHYS_TO_KSEG1(x)) = (v))
|
|
|
|
static void mtx1_init(void);
|
|
static int mtx1_pci_intr_map(const struct pci_attach_args *,
|
|
pci_intr_handle_t *);
|
|
static void mtx1_reboot(void);
|
|
|
|
static const struct obiodev mtx1_devices[] = {
|
|
#if 0
|
|
{ "aupcmcia", -1, -1 },
|
|
{ "auaudio", -1, -1 },
|
|
#endif
|
|
{ NULL },
|
|
};
|
|
|
|
static struct alchemy_board mtx1_info = {
|
|
"4G Systems MTX-1",
|
|
mtx1_devices,
|
|
mtx1_init,
|
|
mtx1_pci_intr_map,
|
|
mtx1_reboot,
|
|
NULL, /* poweroff */
|
|
};
|
|
|
|
const struct alchemy_board *
|
|
board_info(void)
|
|
{
|
|
|
|
return &mtx1_info;
|
|
}
|
|
|
|
void
|
|
mtx1_init(void)
|
|
{
|
|
|
|
if (MIPS_PRID_COPTS(mips_options.mips_cpu_id) != MIPS_AU1500)
|
|
panic("mtx-1: CPU not an AU1500!");
|
|
|
|
/*
|
|
* If we had any kind of identification registers, we could
|
|
* print them here. Apparently the MTX-1 doesn't have that
|
|
* kind of info.
|
|
*/
|
|
|
|
/* leave console and clocks alone -- YAMON should have got it right! */
|
|
}
|
|
|
|
int
|
|
mtx1_pci_intr_map(const struct pci_attach_args *pa, pci_intr_handle_t *ihp)
|
|
{
|
|
/*
|
|
* The board has up to 4 adapters, each with two minipci slots,
|
|
* giving up to 8 devices. Each slot 0 is the top, and slot 1
|
|
* is the bottom.
|
|
*
|
|
* As these are mini PCI slots, only 2 interrupt pins can be
|
|
* used on each slot.
|
|
*/
|
|
static const int irqmap[8/*device*/][4/*pin*/] = {
|
|
{ 1, 2, -1, -1 }, /* IDSEL 0 - Adapter A - Slot 0 */
|
|
{ 1, 2, -1, -1 }, /* IDSEL 1 - Adapter A - Slot 1 */
|
|
{ 4, 5, -1, -1 }, /* IDSEL 2 - Adapter B - Slot 0 */
|
|
{ 5, 4, -1, -1 }, /* IDSEL 3 - Adapter B - Slot 1 */
|
|
|
|
{ 1, 2, -1, -1 }, /* IDSEL 4 - Adapter C - Slot 0 */
|
|
{ 1, 2, -1, -1 }, /* IDSEL 5 - Adapter C - Slot 1 */
|
|
{ 4, 5, -1, -1 }, /* IDSEL 6 - Adapter D - Slot 0 */
|
|
{ 5, 4, -1, -1 }, /* IDSEL 7 - Adapter D - Slot 1 */
|
|
};
|
|
int pin, dev, irq;
|
|
|
|
/* if interrupt pin not used... */
|
|
if ((pin = pa->pa_intrpin) == 0)
|
|
return 1;
|
|
|
|
if (pin > 4) {
|
|
printf("pci: bad interrupt pin %d\n", pin);
|
|
return 1;
|
|
}
|
|
|
|
pci_decompose_tag(pa->pa_pc, pa->pa_intrtag, NULL, &dev, NULL);
|
|
if ((dev < 0) || (dev > 7)) {
|
|
printf("pci: bad device %d\n", dev);
|
|
return 1;
|
|
}
|
|
|
|
if ((irq = irqmap[dev][pin - 1]) == -1) {
|
|
printf("pci: no IRQ routing for device %d pin %d\n", dev, pin);
|
|
return 1;
|
|
}
|
|
|
|
*ihp = irq;
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
mtx1_reboot(void)
|
|
{
|
|
/* fyi, this looks like the same as the DBAu1500 reset */
|
|
PUT16(MTX1_RESET , 0);
|
|
delay(100000); /* 100 msec */
|
|
}
|