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adm5120_obio.c revision 1.1
      1 /* $NetBSD: adm5120_obio.c,v 1.1 2007/03/20 08:52:03 dyoung Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2007 Ruslan Ermilov and Vsevolod Lobko.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or
      8  * without modification, are permitted provided that the following
      9  * conditions 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
     13  *    copyright notice, this list of conditions and the following
     14  *    disclaimer in the documentation and/or other materials provided
     15  *    with the distribution.
     16  * 3. The names of the authors may not be used to endorse or promote
     17  *    products derived from this software without specific prior
     18  *    written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY
     21  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
     23  * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS
     24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
     25  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
     27  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
     29  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
     30  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
     31  * OF SUCH DAMAGE.
     32  */
     33 /*
     34  * Copyright 2002 Wasabi Systems, Inc.
     35  * All rights reserved.
     36  *
     37  * Written by Simon Burge for Wasabi Systems, Inc.
     38  *
     39  * Redistribution and use in source and binary forms, with or without
     40  * modification, are permitted provided that the following conditions
     41  * are met:
     42  * 1. Redistributions of source code must retain the above copyright
     43  *    notice, this list of conditions and the following disclaimer.
     44  * 2. Redistributions in binary form must reproduce the above copyright
     45  *    notice, this list of conditions and the following disclaimer in the
     46  *    documentation and/or other materials provided with the distribution.
     47  * 3. All advertising materials mentioning features or use of this software
     48  *    must display the following acknowledgement:
     49  *      This product includes software developed for the NetBSD Project by
     50  *      Wasabi Systems, Inc.
     51  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     52  *    or promote products derived from this software without specific prior
     53  *    written permission.
     54  *
     55  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
     56  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     57  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     58  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
     59  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     60  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     61  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     62  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     63  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     64  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     65  * POSSIBILITY OF SUCH DAMAGE.
     66  */
     67 
     68 #include <sys/cdefs.h>
     69 __KERNEL_RCSID(0, "$NetBSD: adm5120_obio.c,v 1.1 2007/03/20 08:52:03 dyoung Exp $");
     70 
     71 #include <sys/param.h>
     72 #include <sys/systm.h>
     73 #include <sys/device.h>
     74 
     75 #include <machine/bus.h>
     76 
     77 #include <mips/cache.h>
     78 #include <mips/cpuregs.h>
     79 
     80 #include <mips/adm5120/include/adm5120reg.h>
     81 #include <mips/adm5120/include/adm5120var.h>
     82 #include <mips/adm5120/include/adm5120_mainbusvar.h>
     83 #include <mips/adm5120/include/adm5120_obiovar.h>
     84 
     85 #include "locators.h"
     86 
     87 #ifdef OBIO_DEBUG
     88 int obio_debug = 1;
     89 #define	OBIO_DPRINTF(__fmt, ...)		\
     90 do {						\
     91 	if (obio_debug)			\
     92 		printf((__fmt), __VA_ARGS__);	\
     93 } while (/*CONSTCOND*/0)
     94 #else /* !OBIO_DEBUG */
     95 #define	OBIO_DPRINTF(__fmt, ...)	do { } while (/*CONSTCOND*/0)
     96 #endif /* OBIO_DEBUG */
     97 
     98 static int	obio_match(struct device *, struct cfdata *, void *);
     99 static void	obio_attach(struct device *, struct device *, void *);
    100 static int	obio_submatch(struct device *, struct cfdata *,
    101 			      const int *, void *);
    102 static int	obio_print(void *, const char *);
    103 
    104 CFATTACH_DECL(obio, sizeof(struct device), obio_match, obio_attach, NULL, NULL);
    105 
    106 /* There can be only one. */
    107 int	obio_found;
    108 
    109 struct obiodev {
    110 	const char	*od_name;
    111 	bus_addr_t	od_addr;
    112 	int		od_irq;
    113 	uint32_t	od_gpio_mask;
    114 };
    115 
    116 struct obiodev obiodevs[] = {
    117 	{"uart",	ADM5120_BASE_UART0,	1, 0x0},
    118 	{"uart",	ADM5120_BASE_UART1,	2, 0x0},
    119 	{"admsw",	ADM5120_BASE_SWITCH,	9, 0x0},
    120 	{"ahci",	ADM5120_BASE_USB,	3, 0x0},
    121 	{"admflash",	ADM5120_BASE_SRAM0,	0, 0x0},
    122 	{NULL,		0,			0, 0x0},
    123 };
    124 
    125 static int
    126 obio_match(struct device *parent, struct cfdata *match, void *aux)
    127 {
    128 	return !obio_found;
    129 }
    130 
    131 static void
    132 obio_attach_args_create(struct obio_attach_args *oa, struct obiodev *od,
    133     void *gpio, bus_dma_tag_t dmat, bus_space_tag_t st)
    134 {
    135 	oa->oba_name = od->od_name;
    136 	oa->oba_addr = od->od_addr;
    137 	oa->oba_irq = od->od_irq;
    138 	oa->oba_dt = dmat;
    139 	oa->oba_st = st;
    140 	oa->oba_gpio = gpio;
    141 	oa->oba_gpio_mask = od->od_gpio_mask;
    142 }
    143 
    144 static void
    145 obio_attach(struct device *parent, struct device *self, void *aux)
    146 {
    147 	struct mainbus_attach_args *ma = (struct mainbus_attach_args *)aux;
    148 	struct obio_attach_args oa;
    149 	struct obiodev *od;
    150 
    151 	obio_found = 1;
    152 	printf("\n");
    153 
    154 	OBIO_DPRINTF("%s: %d\n", __func__, __LINE__);
    155 
    156 	OBIO_DPRINTF("%s: %d\n", __func__, __LINE__);
    157 	for (od = obiodevs; od->od_name != NULL; od++) {
    158 		OBIO_DPRINTF("%s: %d\n", __func__, __LINE__);
    159 		obio_attach_args_create(&oa, od, ma->ma_gpio, ma->ma_dmat,
    160 		    ma->ma_obiot);
    161 		OBIO_DPRINTF("%s: %d\n", __func__, __LINE__);
    162 		(void)config_found_sm_loc(self, "obio", NULL, &oa, obio_print,
    163 		    obio_submatch);
    164 	}
    165 	OBIO_DPRINTF("%s: %d\n", __func__, __LINE__);
    166 }
    167 
    168 static int
    169 obio_submatch(struct device *parent, struct cfdata *cf,
    170 	      const int *ldesc, void *aux)
    171 {
    172 	struct obio_attach_args *oa = aux;
    173 
    174 	if (cf->cf_loc[OBIOCF_ADDR] != OBIOCF_ADDR_DEFAULT &&
    175 	    cf->cf_loc[OBIOCF_ADDR] != oa->oba_addr)
    176 		return 0;
    177 
    178 	return config_match(parent, cf, aux);
    179 }
    180 
    181 static int
    182 obio_print(void *aux, const char *pnp)
    183 {
    184 	struct obio_attach_args *oa = aux;
    185 
    186 	if (pnp != NULL)
    187 		aprint_normal("%s at %s", oa->oba_name, pnp);
    188 	if (oa->oba_addr != OBIOCF_ADDR_DEFAULT)
    189 		aprint_normal(" addr 0x%lx", oa->oba_addr);
    190 	if (oa->oba_gpio_mask != OBIOCF_GPIO_MASK_DEFAULT)
    191 		aprint_normal(" gpio_mask 0x%02x", oa->oba_gpio_mask);
    192 
    193 	return UNCONF;
    194 }
    195