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vme_pcc.c revision 1.20.64.1
      1  1.20.64.1    bouyer /*	$NetBSD: vme_pcc.c,v 1.20.64.1 2008/01/19 12:14:26 bouyer 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       1.18     lukem 
     47       1.18     lukem #include <sys/cdefs.h>
     48  1.20.64.1    bouyer __KERNEL_RCSID(0, "$NetBSD: vme_pcc.c,v 1.20.64.1 2008/01/19 12:14:26 bouyer Exp $");
     49        1.1     chuck 
     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  1.20.64.1    bouyer 	uint8_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       1.19       wiz 		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