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/* $OpenBSD: stp_sbus.c,v 1.10 2008/06/26 05:42:13 ray Exp $ */
/* $NetBSD: stp4020.c,v 1.23 2002/06/01 23:51:03 lukem Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Paul Kranenburg.
*
* 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 NETBSD FOUNDATION, INC. 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 THE FOUNDATION 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.
*/
/*
* STP4020: SBus/PCMCIA bridge supporting one Type-3 PCMCIA card, or up to
* two Type-1 and Type-2 PCMCIA cards..
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/malloc.h>
#include <sys/extent.h>
#include <sys/proc.h>
#include <sys/kernel.h>
#include <sys/kthread.h>
#include <sys/device.h>
#include <dev/pcmcia/pcmciareg.h>
#include <dev/pcmcia/pcmciavar.h>
#include <dev/pcmcia/pcmciachip.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/sbus/sbusvar.h>
#include <dev/sbus/stp4020reg.h>
#include <dev/sbus/stp4020var.h>
struct stp4020_sbus_softc {
struct stp4020_softc stp;
struct sparc_bus_space_tag *sc_bustag_le;
};
int stpmatch(struct device *, void *, void *);
void stpattach(struct device *, struct device *, void *);
struct cfattach stp_sbus_ca = {
sizeof(struct stp4020_sbus_softc), stpmatch, stpattach
};
int
stpmatch(parent, match, aux)
struct device *parent;
void *match;
void *aux;
{
struct sbus_attach_args *sa = aux;
return (strcmp("SUNW,pcmcia", sa->sa_name) == 0);
}
/*
* Attach all the sub-devices we can find
*/
void
stpattach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct sbus_attach_args *sa = aux;
struct stp4020_sbus_softc *ssc = (void *)self;
struct stp4020_softc *sc = (void *)self;
int node;
int i;
bus_space_tag_t bt;
bus_space_handle_t bh;
node = sa->sa_node;
/* Allocate little-endian bus tag */
ssc->sc_bustag_le = malloc(sizeof(*sa->sa_bustag), M_DEVBUF, M_NOWAIT);
if (ssc->sc_bustag_le == NULL)
panic("could not allocate stp bus tag");
*ssc->sc_bustag_le = *sa->sa_bustag;
ssc->sc_bustag_le->asi = ASI_PRIMARY_LITTLE;
/* Transfer bus tags */
sc->sc_bustag = sa->sa_bustag;
/* Set up per-socket static initialization */
sc->sc_socks[0].sc = sc->sc_socks[1].sc = sc;
sc->sc_socks[0].tag = sc->sc_socks[1].tag = sa->sa_bustag;
if (sa->sa_nreg < 8) {
printf(": only %d register sets\n", sa->sa_nreg);
return;
}
if (sa->sa_nintr != 2) {
printf(": expect 2 interrupt SBus levels; got %d\n",
sa->sa_nintr);
return;
}
#define STP4020_BANK_PROM 0
#define STP4020_BANK_CTRL 4
for (i = 0; i < 8; i++) {
/*
* STP4020 Register address map:
* bank 0: Forth PROM
* banks 1-3: socket 0, windows 0-2
* bank 4: control registers
* banks 5-7: socket 1, windows 0-2
*/
if (i == STP4020_BANK_PROM)
/* Skip the PROM */
continue;
if (i == STP4020_BANK_CTRL)
bt = sc->sc_bustag;
else
bt = ssc->sc_bustag_le;
if (sbus_bus_map(bt, sa->sa_reg[i].sbr_slot,
sa->sa_reg[i].sbr_offset, sa->sa_reg[i].sbr_size, 0, 0,
&bh) != 0) {
printf(": attach: cannot map registers\n");
return;
}
if (i == STP4020_BANK_CTRL) {
/*
* Copy tag and handle to both socket structures
* for easy access in control/status IO functions.
*/
sc->sc_socks[0].regs = sc->sc_socks[1].regs = bh;
} else if (i < STP4020_BANK_CTRL) {
/* banks 1-3 */
sc->sc_socks[0].windows[i-1].winaddr = bh;
sc->sc_socks[0].wintag = bt;
} else {
/* banks 5-7 */
sc->sc_socks[1].windows[i-5].winaddr = bh;
sc->sc_socks[1].wintag = bt;
}
}
/*
* We get to use two SBus interrupt levels.
* The higher level we use for status change interrupts;
* the lower level for PC card I/O.
*/
bus_intr_establish(sa->sa_bustag, sa->sa_intr[1].sbi_pri,
IPL_NONE, 0, stp4020_statintr, sc, self->dv_xname);
bus_intr_establish(sa->sa_bustag, sa->sa_intr[0].sbi_pri,
IPL_NONE, 0, stp4020_iointr, sc, self->dv_xname);
stpattach_common(sc, sa->sa_frequency);
}
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