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vme_pcc.c revision 1.17.6.1
      1  1.17.6.1     skrll /*	$NetBSD: vme_pcc.c,v 1.17.6.1 2004/08/03 10:38:08 skrll Exp $	*/
      2       1.1     chuck 
      3       1.1     chuck /*-
      4       1.7       scw  * Copyright (c) 1996-2000 The NetBSD Foundation, Inc.
      5       1.1     chuck  * All rights reserved.
      6       1.1     chuck  *
      7       1.1     chuck  * This code is derived from software contributed to The NetBSD Foundation
      8       1.7       scw  * by Jason R. Thorpe and Steve C. Woodford.
      9       1.1     chuck  *
     10       1.1     chuck  * Redistribution and use in source and binary forms, with or without
     11       1.1     chuck  * modification, are permitted provided that the following conditions
     12       1.1     chuck  * are met:
     13       1.1     chuck  * 1. Redistributions of source code must retain the above copyright
     14       1.1     chuck  *    notice, this list of conditions and the following disclaimer.
     15       1.1     chuck  * 2. Redistributions in binary form must reproduce the above copyright
     16       1.1     chuck  *    notice, this list of conditions and the following disclaimer in the
     17       1.1     chuck  *    documentation and/or other materials provided with the distribution.
     18       1.1     chuck  * 3. All advertising materials mentioning features or use of this software
     19       1.1     chuck  *    must display the following acknowledgement:
     20       1.1     chuck  *        This product includes software developed by the NetBSD
     21       1.1     chuck  *        Foundation, Inc. and its contributors.
     22       1.1     chuck  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23       1.1     chuck  *    contributors may be used to endorse or promote products derived
     24       1.1     chuck  *    from this software without specific prior written permission.
     25       1.1     chuck  *
     26       1.1     chuck  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27       1.1     chuck  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28       1.1     chuck  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29       1.5       jtc  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30       1.5       jtc  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31       1.1     chuck  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32       1.1     chuck  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33       1.1     chuck  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34       1.1     chuck  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35       1.1     chuck  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36       1.1     chuck  * POSSIBILITY OF SUCH DAMAGE.
     37       1.1     chuck  */
     38       1.1     chuck 
     39       1.1     chuck /*
     40       1.1     chuck  * VME support specific to the Type 1 VMEchip found on the
     41       1.1     chuck  * MVME-147.
     42       1.1     chuck  *
     43       1.1     chuck  * For a manual on the MVME-147, call: 408.991.8634.  (Yes, this
     44       1.1     chuck  * is the Sunnyvale sales office.)
     45       1.1     chuck  */
     46       1.1     chuck 
     47  1.17.6.1     skrll #include <sys/cdefs.h>
     48  1.17.6.1     skrll __KERNEL_RCSID(0, "$NetBSD: vme_pcc.c,v 1.17.6.1 2004/08/03 10:38:08 skrll Exp $");
     49  1.17.6.1     skrll 
     50       1.1     chuck #include <sys/param.h>
     51       1.1     chuck #include <sys/kernel.h>
     52       1.1     chuck #include <sys/systm.h>
     53       1.1     chuck #include <sys/device.h>
     54       1.7       scw #include <sys/malloc.h>
     55       1.7       scw #include <sys/kcore.h>
     56       1.1     chuck 
     57       1.1     chuck #include <machine/cpu.h>
     58       1.7       scw #include <machine/bus.h>
     59       1.7       scw 
     60       1.7       scw #include <dev/vme/vmereg.h>
     61       1.7       scw #include <dev/vme/vmevar.h>
     62       1.7       scw 
     63       1.1     chuck #include <mvme68k/dev/pccreg.h>
     64       1.1     chuck #include <mvme68k/dev/pccvar.h>
     65      1.15       scw 
     66      1.15       scw #include <dev/mvme/mvmebus.h>
     67       1.1     chuck #include <mvme68k/dev/vme_pccreg.h>
     68       1.7       scw #include <mvme68k/dev/vme_pccvar.h>
     69       1.7       scw 
     70       1.1     chuck 
     71      1.10       scw int vme_pcc_match(struct device *, struct cfdata *, void *);
     72      1.10       scw void vme_pcc_attach(struct device *, struct device *, void *);
     73       1.1     chuck 
     74      1.17   thorpej CFATTACH_DECL(vmepcc, sizeof(struct vme_pcc_softc),
     75      1.17   thorpej     vme_pcc_match, vme_pcc_attach, NULL, NULL);
     76       1.6   thorpej 
     77       1.7       scw extern struct cfdriver vmepcc_cd;
     78       1.7       scw 
     79       1.7       scw extern phys_ram_seg_t mem_clusters[];
     80       1.7       scw static int vme_pcc_attached;
     81       1.7       scw 
     82      1.12       scw void vme_pcc_intr_establish(void *, int, int, int, int,
     83      1.14       scw     int (*)(void *), void *, struct evcnt *);
     84      1.14       scw void vme_pcc_intr_disestablish(void *, int, int, int, struct evcnt *);
     85       1.7       scw 
     86       1.1     chuck 
     87      1.10       scw static struct mvmebus_range vme_pcc_masters[] = {
     88      1.11       scw 	{VME_AM_A24 |
     89      1.11       scw 	    MVMEBUS_AM_CAP_DATA  | MVMEBUS_AM_CAP_PROG |
     90      1.11       scw 	    MVMEBUS_AM_CAP_SUPER | MVMEBUS_AM_CAP_USER,
     91      1.11       scw 		VME_D32 | VME_D16 | VME_D8,
     92       1.7       scw 		VME1_A24D32_LOC_START,
     93      1.10       scw 		VME1_A24_MASK,
     94       1.7       scw 		VME1_A24D32_START,
     95       1.7       scw 		VME1_A24D32_END},
     96       1.7       scw 
     97      1.11       scw 	{VME_AM_A32 |
     98      1.11       scw 	    MVMEBUS_AM_CAP_DATA  | MVMEBUS_AM_CAP_PROG |
     99      1.11       scw 	    MVMEBUS_AM_CAP_SUPER | MVMEBUS_AM_CAP_USER,
    100      1.11       scw 		VME_D32 | VME_D16 | VME_D8,
    101       1.7       scw 		VME1_A32D32_LOC_START,
    102      1.10       scw 		VME1_A32_MASK,
    103       1.7       scw 		VME1_A32D32_START,
    104       1.7       scw 		VME1_A32D32_END},
    105       1.7       scw 
    106      1.11       scw 	{VME_AM_A24 |
    107      1.11       scw 	    MVMEBUS_AM_CAP_DATA  | MVMEBUS_AM_CAP_PROG |
    108      1.11       scw 	    MVMEBUS_AM_CAP_SUPER | MVMEBUS_AM_CAP_USER,
    109      1.11       scw 		VME_D16 | VME_D8,
    110       1.7       scw 		VME1_A24D16_LOC_START,
    111      1.10       scw 		VME1_A24_MASK,
    112       1.7       scw 		VME1_A24D16_START,
    113       1.7       scw 		VME1_A24D16_END},
    114       1.7       scw 
    115      1.11       scw 	{VME_AM_A32 |
    116      1.11       scw 	    MVMEBUS_AM_CAP_DATA  | MVMEBUS_AM_CAP_PROG |
    117      1.11       scw 	    MVMEBUS_AM_CAP_SUPER | MVMEBUS_AM_CAP_USER,
    118       1.7       scw 		VME_D16 | VME_D8,
    119       1.7       scw 		VME1_A32D16_LOC_START,
    120      1.10       scw 		VME1_A32_MASK,
    121       1.7       scw 		VME1_A32D16_START,
    122       1.7       scw 		VME1_A32D16_END},
    123       1.7       scw 
    124      1.11       scw 	{VME_AM_A16 |
    125      1.11       scw 	    MVMEBUS_AM_CAP_DATA  |
    126      1.11       scw 	    MVMEBUS_AM_CAP_SUPER | MVMEBUS_AM_CAP_USER,
    127       1.7       scw 		VME_D16 | VME_D8,
    128       1.7       scw 		VME1_A16D16_LOC_START,
    129      1.10       scw 		VME1_A16_MASK,
    130       1.7       scw 		VME1_A16D16_START,
    131       1.7       scw 		VME1_A16D16_END}
    132       1.7       scw };
    133      1.10       scw #define VME1_NMASTERS	(sizeof(vme_pcc_masters)/sizeof(struct mvmebus_range))
    134       1.1     chuck 
    135       1.1     chuck 
    136       1.7       scw /* ARGSUSED */
    137       1.1     chuck int
    138       1.7       scw vme_pcc_match(parent, cf, aux)
    139       1.1     chuck 	struct device *parent;
    140       1.4       gwr 	struct cfdata *cf;
    141       1.4       gwr 	void *aux;
    142       1.1     chuck {
    143       1.7       scw 	struct pcc_attach_args *pa;
    144       1.7       scw 
    145       1.7       scw 	pa = aux;
    146       1.1     chuck 
    147       1.1     chuck 	/* Only one VME chip, please. */
    148       1.7       scw 	if (vme_pcc_attached)
    149       1.1     chuck 		return (0);
    150       1.1     chuck 
    151       1.7       scw 	if (strcmp(pa->pa_name, vmepcc_cd.cd_name))
    152       1.1     chuck 		return (0);
    153       1.1     chuck 
    154       1.1     chuck 	return (1);
    155       1.1     chuck }
    156       1.1     chuck 
    157       1.1     chuck void
    158       1.7       scw vme_pcc_attach(parent, self, aux)
    159       1.7       scw 	struct device *parent;
    160       1.7       scw 	struct device *self;
    161       1.1     chuck 	void *aux;
    162       1.1     chuck {
    163       1.7       scw 	struct pcc_attach_args *pa;
    164       1.7       scw 	struct vme_pcc_softc *sc;
    165      1.11       scw 	vme_am_t am;
    166       1.7       scw 	u_int8_t reg;
    167       1.7       scw 
    168       1.7       scw 	sc = (struct vme_pcc_softc *) self;
    169       1.7       scw 	pa = aux;
    170       1.7       scw 
    171      1.10       scw 	/* Map the VMEchip's registers */
    172      1.13       scw 	bus_space_map(pa->pa_bust, pa->pa_offset, VME1REG_SIZE, 0,
    173       1.7       scw 	    &sc->sc_bush);
    174       1.1     chuck 
    175      1.13       scw 	/* Initialise stuff used by the mvme68k common VMEbus front-end */
    176      1.13       scw 	sc->sc_mvmebus.sc_bust = pa->pa_bust;
    177      1.13       scw 	sc->sc_mvmebus.sc_dmat = pa->pa_dmat;
    178      1.13       scw 	sc->sc_mvmebus.sc_chip = sc;
    179      1.13       scw 	sc->sc_mvmebus.sc_nmasters = VME1_NMASTERS;
    180      1.13       scw 	sc->sc_mvmebus.sc_masters = &vme_pcc_masters[0];
    181      1.13       scw 	sc->sc_mvmebus.sc_nslaves = VME1_NSLAVES;
    182      1.13       scw 	sc->sc_mvmebus.sc_slaves = &sc->sc_slave[0];
    183      1.13       scw 	sc->sc_mvmebus.sc_intr_establish = vme_pcc_intr_establish;
    184      1.13       scw 	sc->sc_mvmebus.sc_intr_disestablish = vme_pcc_intr_disestablish;
    185      1.13       scw 
    186       1.1     chuck 	/* Initialize the chip. */
    187       1.7       scw 	reg = vme1_reg_read(sc, VME1REG_SCON) & ~VME1_SCON_SYSFAIL;
    188       1.7       scw 	vme1_reg_write(sc, VME1REG_SCON, reg);
    189       1.1     chuck 
    190       1.3  christos 	printf(": Type 1 VMEchip, scon jumper %s\n",
    191       1.7       scw 	    (reg & VME1_SCON_SWITCH) ? "enabled" : "disabled");
    192       1.1     chuck 
    193       1.7       scw 	/*
    194      1.10       scw 	 * Adjust the start address of the first range in vme_pcc_masters[]
    195       1.7       scw 	 * according to how much onboard memory exists. Disable the first
    196       1.7       scw 	 * range if onboard memory >= 16Mb, and adjust the start of the
    197       1.7       scw 	 * second range (A32D32).
    198       1.7       scw 	 */
    199      1.10       scw 	vme_pcc_masters[0].vr_vmestart = (vme_addr_t) mem_clusters[0].size;
    200       1.7       scw 	if (mem_clusters[0].size >= 0x01000000) {
    201      1.10       scw 		vme_pcc_masters[0].vr_am = MVMEBUS_AM_DISABLED;
    202      1.10       scw 		vme_pcc_masters[1].vr_vmestart +=
    203       1.7       scw 		    (vme_addr_t) (mem_clusters[0].size - 0x01000000);
    204       1.7       scw 	}
    205       1.1     chuck 
    206      1.11       scw 	am = 0;
    207      1.11       scw 	reg = vme1_reg_read(sc, VME1REG_SLADDRMOD);
    208      1.11       scw 	if ((reg & VME1_SLMOD_DATA) != 0)
    209      1.11       scw 		am |= MVMEBUS_AM_CAP_DATA;
    210      1.11       scw 	if ((reg & VME1_SLMOD_PRGRM) != 0)
    211      1.11       scw 		am |= MVMEBUS_AM_CAP_PROG;
    212      1.11       scw 	if ((reg & VME1_SLMOD_SUPER) != 0)
    213      1.11       scw 		am |= MVMEBUS_AM_CAP_SUPER;
    214      1.11       scw 	if ((reg & VME1_SLMOD_USER) != 0)
    215      1.11       scw 		am |= MVMEBUS_AM_CAP_USER;
    216      1.11       scw 	if ((reg & VME1_SLMOD_BLOCK) != 0)
    217      1.11       scw 		am |= MVMEBUS_AM_CAP_BLK;
    218      1.11       scw 
    219      1.11       scw #ifdef notyet
    220      1.11       scw 	if ((reg & VME1_SLMOD_SHORT) != 0) {
    221      1.11       scw 		sc->sc_slave[VME1_SLAVE_A16].vr_am = am | VME_AM_A16;
    222      1.11       scw 		sc->sc_slave[VME1_SLAVE_A16].vr_mask = 0xffffu;
    223      1.11       scw 	} else
    224      1.11       scw #endif
    225      1.11       scw 		sc->sc_slave[VME1_SLAVE_A16].vr_am = MVMEBUS_AM_DISABLED;
    226      1.11       scw 
    227      1.11       scw 	if (pcc_slave_base_addr < 0x01000000u && (reg & VME1_SLMOD_STND) != 0) {
    228      1.11       scw 		sc->sc_slave[VME1_SLAVE_A24].vr_am = am | VME_AM_A24;
    229      1.11       scw 		sc->sc_slave[VME1_SLAVE_A24].vr_datasize = VME_D32 |
    230      1.11       scw 		    VME_D16 | VME_D8;
    231      1.11       scw 		sc->sc_slave[VME1_SLAVE_A24].vr_mask = 0xffffffu;
    232      1.11       scw 		sc->sc_slave[VME1_SLAVE_A24].vr_locstart = 0;
    233      1.11       scw 		sc->sc_slave[VME1_SLAVE_A24].vr_vmestart = pcc_slave_base_addr;
    234      1.11       scw 		sc->sc_slave[VME1_SLAVE_A24].vr_vmeend = (pcc_slave_base_addr +
    235      1.11       scw 		    mem_clusters[0].size - 1) & 0x00ffffffu;
    236      1.11       scw 	} else
    237      1.11       scw 		sc->sc_slave[VME1_SLAVE_A24].vr_am = MVMEBUS_AM_DISABLED;
    238      1.11       scw 
    239      1.11       scw 	if ((reg & VME1_SLMOD_EXTED) != 0) {
    240      1.11       scw 		sc->sc_slave[VME1_SLAVE_A32].vr_am = am | VME_AM_A32;
    241      1.11       scw 		sc->sc_slave[VME1_SLAVE_A32].vr_datasize = VME_D32 |
    242      1.11       scw 		    VME_D16 | VME_D8;
    243      1.11       scw 		sc->sc_slave[VME1_SLAVE_A32].vr_mask = 0xffffffffu;
    244      1.11       scw 		sc->sc_slave[VME1_SLAVE_A32].vr_locstart = 0;
    245      1.11       scw 		sc->sc_slave[VME1_SLAVE_A32].vr_vmestart = pcc_slave_base_addr;
    246      1.11       scw 		sc->sc_slave[VME1_SLAVE_A32].vr_vmeend =
    247      1.11       scw 		    pcc_slave_base_addr + mem_clusters[0].size - 1;
    248      1.11       scw 	} else
    249      1.11       scw 		sc->sc_slave[VME1_SLAVE_A32].vr_am = MVMEBUS_AM_DISABLED;
    250      1.11       scw 
    251      1.11       scw 	vme_pcc_attached = 1;
    252       1.1     chuck 
    253      1.10       scw 	mvmebus_attach(&sc->sc_mvmebus);
    254       1.7       scw }
    255       1.7       scw 
    256       1.7       scw void
    257      1.14       scw vme_pcc_intr_establish(csc, prior, level, vector, first, func, arg, evcnt)
    258      1.10       scw 	void *csc;
    259      1.12       scw 	int prior, level, vector, first;
    260      1.10       scw 	int (*func)(void *);
    261      1.10       scw 	void *arg;
    262      1.14       scw 	struct evcnt *evcnt;
    263       1.7       scw {
    264      1.10       scw 	struct vme_pcc_softc *sc = csc;
    265       1.7       scw 
    266      1.12       scw 	if (prior != level)
    267  1.17.6.1     skrll 		panic("vme_pcc_intr_establish: CPU priority != VMEbus irq level");
    268      1.12       scw 
    269      1.14       scw 	isrlink_vectored(func, arg, prior, vector, evcnt);
    270       1.7       scw 
    271      1.10       scw 	if (first) {
    272      1.14       scw 		evcnt_attach_dynamic(evcnt, EVCNT_TYPE_INTR,
    273      1.14       scw 		    isrlink_evcnt(prior), sc->sc_mvmebus.sc_dev.dv_xname,
    274      1.14       scw 		    mvmebus_irq_name[level]);
    275      1.14       scw 
    276       1.7       scw 		/*
    277      1.10       scw 		 * There had better not be another VMEbus master responding
    278      1.10       scw 		 * to this interrupt level...
    279       1.7       scw 		 */
    280      1.10       scw 		vme1_reg_write(sc, VME1REG_IRQEN,
    281      1.10       scw 		    vme1_reg_read(sc, VME1REG_IRQEN) | VME1_IRQ_VME(level));
    282       1.7       scw 	}
    283       1.7       scw }
    284       1.1     chuck 
    285       1.7       scw void
    286      1.14       scw vme_pcc_intr_disestablish(csc, level, vector, last, evcnt)
    287      1.10       scw 	void *csc;
    288      1.10       scw 	int level, vector, last;
    289      1.14       scw 	struct evcnt *evcnt;
    290       1.7       scw {
    291      1.10       scw 	struct vme_pcc_softc *sc = csc;
    292       1.7       scw 
    293       1.7       scw 	isrunlink_vectored(vector);
    294       1.7       scw 
    295      1.10       scw 	if (last) {
    296       1.7       scw 		vme1_reg_write(sc, VME1REG_IRQEN,
    297       1.7       scw 		    vme1_reg_read(sc, VME1REG_IRQEN) & ~VME1_IRQ_VME(level));
    298      1.14       scw 		evcnt_detach(evcnt);
    299       1.1     chuck 	}
    300       1.7       scw }
    301