/*      $NetBSD: mainbus.c,v 1.24 2024/01/18 05:12:29 thorpej Exp $     */

/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Steve C. Woodford
*
* 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.
*/

/*
* Derived from the mainbus code in mvme68k/autoconf.c by Chuck Cranor.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.24 2024/01/18 05:12:29 thorpej Exp $");

#include "opt_mvmeconf.h"
#include "vmetwo.h"

#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/device.h>

#define _MVME68K_BUS_DMA_PRIVATE
#define _MVME68K_BUS_SPACE_PRIVATE
#include <machine/bus.h>
#undef _MVME68K_BUS_DMA_PRIVATE
#undef _MVME68K_BUS_SPACE_PRIVATE
#include <machine/cpu.h>

#include <mvme68k/dev/mainbus.h>

#if defined(MVME162) || defined(MVME172) || defined(MVME167) || defined(MVME177)
#if NVMETWO == 0
#include <dev/vme/vmevar.h>
#include <dev/mvme/mvmebus.h>
#include <dev/mvme/vme_twovar.h>
#endif
#endif

void mainbus_attach(device_t, device_t, void *);
int mainbus_match(device_t, cfdata_t, void *);
int mainbus_print(void *, const char *);

CFATTACH_DECL_NEW(mainbus, 0,
   mainbus_match, mainbus_attach, NULL, NULL);


struct mainbus_devices {
       const char *md_name;
       bus_addr_t md_offset;
};

#ifdef MVME147
static struct mainbus_devices mainbusdevs_147[] = {
       {"pcc", MAINBUS_PCC_OFFSET},
       {"timekeeper", MAINBUS_TK147_OFFSET},
       {NULL, 0}
};
#endif

#if defined(MVME162) || defined(MVME167) || defined(MVME172) || defined(MVME177)
static struct mainbus_devices mainbusdevs_1x7[] = {
       {"pcctwo", MAINBUS_PCCTWO_OFFSET},
       {"vmetwo", MAINBUS_VMETWO_OFFSET},
       {"timekeeper", MAINBUS_TIMEKEEPER_OFFSET},
       {NULL, 0}
};
#endif

struct mvme68k_bus_dma_tag _mainbus_dma_tag = {
       NULL,
       _bus_dmamap_create,
       _bus_dmamap_destroy,
       _bus_dmamap_load_direct,
       _bus_dmamap_load_mbuf_direct,
       _bus_dmamap_load_uio_direct,
       _bus_dmamap_load_raw_direct,
       _bus_dmamap_unload,
       NULL,                   /* Set up at run-time */
       _bus_dmamem_alloc,
       _bus_dmamem_free,
       _bus_dmamem_map,
       _bus_dmamem_unmap,
       _bus_dmamem_mmap
};

struct mvme68k_bus_space_tag _mainbus_space_tag = {
       NULL,
       _bus_space_map,
       _bus_space_unmap,
       _bus_space_peek_1,
       _bus_space_peek_2,
       _bus_space_peek_4,
       _bus_space_poke_1,
       _bus_space_poke_2,
       _bus_space_poke_4
};


/* ARGSUSED */
int
mainbus_match(device_t parent, cfdata_t cf, void *args)
{
       static int mainbus_matched;

       if (mainbus_matched)
               return 0;

       return (mainbus_matched = 1);
}

/* ARGSUSED */
void
mainbus_attach(device_t parent, device_t self, void *args)
{
       struct mainbus_attach_args ma;
       struct mainbus_devices *devices;
       int i;

       printf("\n");

       /*
        * Attach children appropriate for this CPU.
        */
       switch (machineid) {
#ifdef MVME147
       case MVME_147:
               devices = mainbusdevs_147;
               _mainbus_dma_tag._dmamap_sync = _bus_dmamap_sync_030;
               break;
#endif

#if defined(MVME162) || defined(MVME167) || defined(MVME172) || defined(MVME177)
       case MVME_162:
       case MVME_167:
       case MVME_172:
       case MVME_177:
               devices = mainbusdevs_1x7;
               _mainbus_dma_tag._dmamap_sync = _bus_dmamap_sync_0460;
               break;
#endif

       default:
               panic("mainbus_attach: impossible CPU type");
       }

       for (i = 0; devices[i].md_name != NULL; ++i) {
               /*
                * On mvme162 and up, if the kernel config file had no vmetwo0
                * device, we have to do some manual initialisation on the
                * VMEChip2 to get local interrupts working (ABORT switch,
                * hardware assisted soft interrupts).
                */
#if defined(MVME162) || defined(MVME172) || defined(MVME167) || defined(MVME177)
#if NVMETWO == 0
               if (devices[i].md_offset == MAINBUS_VMETWO_OFFSET
#if defined(MVME147)
                   && machineid != MVME_147
#endif
                   ) {
                       (void)vmetwo_probe(&_mainbus_space_tag,
                           intiobase_phys + MAINBUS_VMETWO_OFFSET);
                       continue;
               }
#endif
#endif
               ma.ma_name = devices[i].md_name;
               ma.ma_dmat = &_mainbus_dma_tag;
               ma.ma_bust = &_mainbus_space_tag;
               ma.ma_offset = devices[i].md_offset + intiobase_phys;

               (void)config_found(self, &ma, mainbus_print, CFARGS_NONE);
       }


       /*
        * Attach the memory controllers on mvme162->mvme177.
        * Note: These *must* be attached after the PCCChip2/MCChip.
        * They must also be attached *after* the VMEchip2 has been
        * initialised (either by the driver, or the vmetwo_probe()
        * call above).
        */
#if defined(MVME162) || defined(MVME172) || defined(MVME167) || defined(MVME177)
#if defined(MVME147)
       if (machineid != MVME_147)
#endif
       {
               ma.ma_name = "memc";
               ma.ma_dmat = &_mainbus_dma_tag;
               ma.ma_bust = &_mainbus_space_tag;
               ma.ma_offset = MAINBUS_MEMC1_OFFSET + intiobase_phys;
               (void)config_found(self, &ma, mainbus_print, CFARGS_NONE);
               ma.ma_offset = MAINBUS_MEMC2_OFFSET + intiobase_phys;
               (void)config_found(self, &ma, mainbus_print, CFARGS_NONE);
       }
#endif

       /*
        * Attach Industry Pack modules on mvme162 and mvme172
        */
#if defined(MVME162) || defined(MVME172)
#if defined(MVME147) || defined(MVME167) || defined(MVME177)
       if (machineid == MVME_162 || machineid == MVME_172)
#endif
       {
               ma.ma_name = "ipack";
               ma.ma_dmat = &_mainbus_dma_tag;
               ma.ma_bust = &_mainbus_space_tag;
               ma.ma_offset = MAINBUS_IPACK_OFFSET + intiobase_phys;
               (void)config_found(self, &ma, mainbus_print, CFARGS_NONE);
       }
#endif
}

int
mainbus_print(void *aux, const char *cp)
{
       struct mainbus_attach_args *ma;

       ma = aux;

       if (cp)
               aprint_normal("%s at %s", ma->ma_name, cp);

       aprint_normal(" address 0x%lx", ma->ma_offset);

       return UNCONF;
}

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