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octeon_bootbus.c revision 1.2 
      1 /*	$NetBSD: octeon_bootbus.c,v 1.2 2021/04/24 23:36:42 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2007
      5  *      Internet Initiative Japan, Inc.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 __KERNEL_RCSID(0, "$NetBSD: octeon_bootbus.c,v 1.2 2021/04/24 23:36:42 thorpej Exp $");
     31 
     32 #include "locators.h"
     33 
     34 #include <sys/param.h>
     35 #include <sys/systm.h>
     36 #include <sys/device.h>
     37 
     38 #define _MIPS_BUS_DMA_PRIVATE
     39 #include <sys/bus.h>
     40 
     41 #include <mips/cavium/octeonvar.h>
     42 #include <mips/cavium/include/bootbusvar.h>
     43 
     44 static int	bootbus_match(device_t, struct cfdata *, void *);
     45 static void	bootbus_attach(device_t, device_t, void *);
     46 static int      bootbus_submatch(device_t, struct cfdata *,
     47 		    const int *, void *);
     48 static int	bootbus_print(void *, const char *);
     49 static void	bootbus_init(void);
     50 
     51 static void	bootbus_bus_io_init(bus_space_tag_t, void *);
     52 
     53 static struct mips_bus_space	*bootbus_bust;
     54 static struct mips_bus_dma_tag	*bootbus_dmat;
     55 
     56 void
     57 bootbus_bootstrap(struct octeon_config *mcp)
     58 {
     59 
     60 	bootbus_bus_io_init(&mcp->mc_bootbus_bust, mcp);
     61 
     62 	bootbus_bust = &mcp->mc_bootbus_bust;
     63 	bootbus_dmat = &mcp->mc_bootbus_dmat;
     64 }
     65 
     66 /* ---- autoconf */
     67 
     68 CFATTACH_DECL_NEW(bootbus, sizeof(device_t), bootbus_match, bootbus_attach, NULL,
     69     NULL);
     70 
     71 static int
     72 bootbus_match(device_t parent, struct cfdata *match, void *aux)
     73 {
     74 
     75 	return 1;
     76 }
     77 
     78 static void
     79 bootbus_attach(device_t parent, device_t self, void *aux)
     80 {
     81 	const struct bootbus_dev *dev;
     82 	struct bootbus_attach_args aa;
     83 	int i, j;
     84 
     85 	aprint_normal("\n");
     86 
     87 	bootbus_init();
     88 
     89 	for (i = 0; i < (int)bootbus_ndevs; i++) {
     90 		dev = bootbus_devs[i];
     91 		for (j = 0; j < dev->nunits; j++) {
     92 			aa.aa_name = dev->name;
     93 			aa.aa_unitno = j;
     94 			aa.aa_unit = &dev->units[j];
     95 			aa.aa_bust = bootbus_bust;
     96 			aa.aa_dmat = bootbus_dmat;
     97 
     98 			config_found(self, &aa, bootbus_print,
     99 			    CFARG_SUBMATCH, bootbus_submatch,
    100 			    CFARG_EOL);
    101 		}
    102 	}
    103 }
    104 
    105 static int
    106 bootbus_submatch(device_t parent, struct cfdata *cf,
    107     const int *ldesc, void *aux)
    108 {
    109 
    110 	return config_match(parent, cf, aux);
    111 }
    112 
    113 static int
    114 bootbus_print(void *aux, const char *pnp)
    115 {
    116 	struct bootbus_attach_args *aa = aux;
    117 
    118 	if (pnp)
    119 		aprint_normal("%s at %s", aa->aa_name, pnp);
    120 
    121 	aprint_normal(": address=0x%016" PRIx64, aa->aa_unit->addr);
    122 
    123 	return UNCONF;
    124 }
    125 
    126 static void
    127 bootbus_init(void)
    128 {
    129 
    130 }
    131 
    132 
    133 /* ---- bus_space(9) */
    134 
    135 #define	CHIP	bootbus
    136 #define	CHIP_IO
    137 #define	CHIP_ACCESS_SIZE	8
    138 
    139 #define	CHIP_W1_BUS_START(v)	0x0000000000000000ULL
    140 #define	CHIP_W1_BUS_END(v)	0x000000001fffffffULL
    141 #define	CHIP_W1_SYS_START(v)	0x00000000a0000000ULL
    142 #define	CHIP_W1_SYS_END(v)	0x00000000bfffffffULL
    143 
    144 #include <mips/mips/bus_space_alignstride_chipdep.c>
    145