293 lines
8.6 KiB
C
293 lines
8.6 KiB
C
/* $NetBSD: vme_pcc.c,v 1.13 2000/11/24 09:27:42 scw Exp $ */
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/*-
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* Copyright (c) 1996-2000 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe and Steve C. Woodford.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* VME support specific to the Type 1 VMEchip found on the
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* MVME-147.
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*
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* For a manual on the MVME-147, call: 408.991.8634. (Yes, this
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* is the Sunnyvale sales office.)
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*/
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <sys/kcore.h>
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#include <machine/cpu.h>
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#include <machine/bus.h>
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#include <dev/vme/vmereg.h>
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#include <dev/vme/vmevar.h>
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#include <mvme68k/mvme68k/isr.h>
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#include <mvme68k/dev/pccreg.h>
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#include <mvme68k/dev/pccvar.h>
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#include <mvme68k/dev/mvmebus.h>
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#include <mvme68k/dev/vme_pccreg.h>
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#include <mvme68k/dev/vme_pccvar.h>
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int vme_pcc_match(struct device *, struct cfdata *, void *);
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void vme_pcc_attach(struct device *, struct device *, void *);
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struct cfattach vmepcc_ca = {
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sizeof(struct vme_pcc_softc), vme_pcc_match, vme_pcc_attach
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};
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extern struct cfdriver vmepcc_cd;
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extern phys_ram_seg_t mem_clusters[];
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static int vme_pcc_attached;
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void vme_pcc_intr_establish(void *, int, int, int, int,
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int (*)(void *), void *);
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void vme_pcc_intr_disestablish(void *, int, int, int);
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static struct mvmebus_range vme_pcc_masters[] = {
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{VME_AM_A24 |
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MVMEBUS_AM_CAP_DATA | MVMEBUS_AM_CAP_PROG |
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MVMEBUS_AM_CAP_SUPER | MVMEBUS_AM_CAP_USER,
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VME_D32 | VME_D16 | VME_D8,
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VME1_A24D32_LOC_START,
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VME1_A24_MASK,
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VME1_A24D32_START,
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VME1_A24D32_END},
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{VME_AM_A32 |
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MVMEBUS_AM_CAP_DATA | MVMEBUS_AM_CAP_PROG |
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MVMEBUS_AM_CAP_SUPER | MVMEBUS_AM_CAP_USER,
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VME_D32 | VME_D16 | VME_D8,
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VME1_A32D32_LOC_START,
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VME1_A32_MASK,
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VME1_A32D32_START,
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VME1_A32D32_END},
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{VME_AM_A24 |
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MVMEBUS_AM_CAP_DATA | MVMEBUS_AM_CAP_PROG |
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MVMEBUS_AM_CAP_SUPER | MVMEBUS_AM_CAP_USER,
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VME_D16 | VME_D8,
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VME1_A24D16_LOC_START,
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VME1_A24_MASK,
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VME1_A24D16_START,
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VME1_A24D16_END},
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{VME_AM_A32 |
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MVMEBUS_AM_CAP_DATA | MVMEBUS_AM_CAP_PROG |
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MVMEBUS_AM_CAP_SUPER | MVMEBUS_AM_CAP_USER,
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VME_D16 | VME_D8,
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VME1_A32D16_LOC_START,
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VME1_A32_MASK,
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VME1_A32D16_START,
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VME1_A32D16_END},
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{VME_AM_A16 |
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MVMEBUS_AM_CAP_DATA |
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MVMEBUS_AM_CAP_SUPER | MVMEBUS_AM_CAP_USER,
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VME_D16 | VME_D8,
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VME1_A16D16_LOC_START,
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VME1_A16_MASK,
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VME1_A16D16_START,
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VME1_A16D16_END}
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};
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#define VME1_NMASTERS (sizeof(vme_pcc_masters)/sizeof(struct mvmebus_range))
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/* ARGSUSED */
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int
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vme_pcc_match(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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struct pcc_attach_args *pa;
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pa = aux;
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/* Only one VME chip, please. */
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if (vme_pcc_attached)
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return (0);
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if (strcmp(pa->pa_name, vmepcc_cd.cd_name))
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return (0);
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return (1);
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}
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void
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vme_pcc_attach(parent, self, aux)
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struct device *parent;
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struct device *self;
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void *aux;
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{
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struct pcc_attach_args *pa;
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struct vme_pcc_softc *sc;
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vme_am_t am;
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u_int8_t reg;
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sc = (struct vme_pcc_softc *) self;
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pa = aux;
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/* Map the VMEchip's registers */
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bus_space_map(pa->pa_bust, pa->pa_offset, VME1REG_SIZE, 0,
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&sc->sc_bush);
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/* Initialise stuff used by the mvme68k common VMEbus front-end */
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sc->sc_mvmebus.sc_bust = pa->pa_bust;
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sc->sc_mvmebus.sc_dmat = pa->pa_dmat;
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sc->sc_mvmebus.sc_chip = sc;
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sc->sc_mvmebus.sc_nmasters = VME1_NMASTERS;
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sc->sc_mvmebus.sc_masters = &vme_pcc_masters[0];
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sc->sc_mvmebus.sc_nslaves = VME1_NSLAVES;
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sc->sc_mvmebus.sc_slaves = &sc->sc_slave[0];
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sc->sc_mvmebus.sc_intr_establish = vme_pcc_intr_establish;
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sc->sc_mvmebus.sc_intr_disestablish = vme_pcc_intr_disestablish;
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/* Initialize the chip. */
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reg = vme1_reg_read(sc, VME1REG_SCON) & ~VME1_SCON_SYSFAIL;
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vme1_reg_write(sc, VME1REG_SCON, reg);
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printf(": Type 1 VMEchip, scon jumper %s\n",
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(reg & VME1_SCON_SWITCH) ? "enabled" : "disabled");
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/*
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* Adjust the start address of the first range in vme_pcc_masters[]
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* according to how much onboard memory exists. Disable the first
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* range if onboard memory >= 16Mb, and adjust the start of the
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* second range (A32D32).
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*/
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vme_pcc_masters[0].vr_vmestart = (vme_addr_t) mem_clusters[0].size;
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if (mem_clusters[0].size >= 0x01000000) {
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vme_pcc_masters[0].vr_am = MVMEBUS_AM_DISABLED;
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vme_pcc_masters[1].vr_vmestart +=
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(vme_addr_t) (mem_clusters[0].size - 0x01000000);
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}
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am = 0;
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reg = vme1_reg_read(sc, VME1REG_SLADDRMOD);
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if ((reg & VME1_SLMOD_DATA) != 0)
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am |= MVMEBUS_AM_CAP_DATA;
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if ((reg & VME1_SLMOD_PRGRM) != 0)
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am |= MVMEBUS_AM_CAP_PROG;
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if ((reg & VME1_SLMOD_SUPER) != 0)
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am |= MVMEBUS_AM_CAP_SUPER;
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if ((reg & VME1_SLMOD_USER) != 0)
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am |= MVMEBUS_AM_CAP_USER;
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if ((reg & VME1_SLMOD_BLOCK) != 0)
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am |= MVMEBUS_AM_CAP_BLK;
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#ifdef notyet
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if ((reg & VME1_SLMOD_SHORT) != 0) {
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sc->sc_slave[VME1_SLAVE_A16].vr_am = am | VME_AM_A16;
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sc->sc_slave[VME1_SLAVE_A16].vr_mask = 0xffffu;
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} else
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#endif
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sc->sc_slave[VME1_SLAVE_A16].vr_am = MVMEBUS_AM_DISABLED;
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if (pcc_slave_base_addr < 0x01000000u && (reg & VME1_SLMOD_STND) != 0) {
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sc->sc_slave[VME1_SLAVE_A24].vr_am = am | VME_AM_A24;
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sc->sc_slave[VME1_SLAVE_A24].vr_datasize = VME_D32 |
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VME_D16 | VME_D8;
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sc->sc_slave[VME1_SLAVE_A24].vr_mask = 0xffffffu;
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sc->sc_slave[VME1_SLAVE_A24].vr_locstart = 0;
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sc->sc_slave[VME1_SLAVE_A24].vr_vmestart = pcc_slave_base_addr;
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sc->sc_slave[VME1_SLAVE_A24].vr_vmeend = (pcc_slave_base_addr +
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mem_clusters[0].size - 1) & 0x00ffffffu;
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} else
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sc->sc_slave[VME1_SLAVE_A24].vr_am = MVMEBUS_AM_DISABLED;
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if ((reg & VME1_SLMOD_EXTED) != 0) {
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sc->sc_slave[VME1_SLAVE_A32].vr_am = am | VME_AM_A32;
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sc->sc_slave[VME1_SLAVE_A32].vr_datasize = VME_D32 |
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VME_D16 | VME_D8;
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sc->sc_slave[VME1_SLAVE_A32].vr_mask = 0xffffffffu;
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sc->sc_slave[VME1_SLAVE_A32].vr_locstart = 0;
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sc->sc_slave[VME1_SLAVE_A32].vr_vmestart = pcc_slave_base_addr;
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sc->sc_slave[VME1_SLAVE_A32].vr_vmeend =
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pcc_slave_base_addr + mem_clusters[0].size - 1;
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} else
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sc->sc_slave[VME1_SLAVE_A32].vr_am = MVMEBUS_AM_DISABLED;
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vme_pcc_attached = 1;
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mvmebus_attach(&sc->sc_mvmebus);
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}
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void
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vme_pcc_intr_establish(csc, prior, level, vector, first, func, arg)
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void *csc;
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int prior, level, vector, first;
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int (*func)(void *);
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void *arg;
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{
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struct vme_pcc_softc *sc = csc;
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if (prior != level)
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panic("vme_pcc_intr_establish: cpu priority != VMEbus irq level");
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isrlink_vectored(func, arg, prior, vector);
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if (first) {
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/*
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* There had better not be another VMEbus master responding
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* to this interrupt level...
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*/
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vme1_reg_write(sc, VME1REG_IRQEN,
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vme1_reg_read(sc, VME1REG_IRQEN) | VME1_IRQ_VME(level));
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}
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}
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void
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vme_pcc_intr_disestablish(csc, level, vector, last)
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void *csc;
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int level, vector, last;
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{
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struct vme_pcc_softc *sc = csc;
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isrunlink_vectored(vector);
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if (last) {
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vme1_reg_write(sc, VME1REG_IRQEN,
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vme1_reg_read(sc, VME1REG_IRQEN) & ~VME1_IRQ_VME(level));
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}
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}
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