Home | History | Annotate | Line # | Download | only in wii
mainbus.c revision 1.4 
      1 /* $NetBSD: mainbus.c,v 1.4 2024/06/18 13:35:26 rin Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2002, 2024 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Lennart Augustsson (lennart (at) augustsson.net) at Sandburst Corp.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.4 2024/06/18 13:35:26 rin Exp $");
     34 
     35 #include <sys/param.h>
     36 #include <sys/device.h>
     37 #include <sys/systm.h>
     38 
     39 #include <sys/bus.h>
     40 #include <machine/wii.h>
     41 #include <machine/pio.h>
     42 #include <arch/evbppc/wii/dev/mainbus.h>
     43 
     44 #include "locators.h"
     45 #include "mainbus.h"
     46 
     47 extern struct powerpc_bus_space wii_mem_tag;
     48 extern struct powerpc_bus_dma_tag wii_bus_dma_tag;
     49 
     50 int	mainbus_match(device_t, cfdata_t, void *);
     51 void	mainbus_attach(device_t, device_t, void *);
     52 
     53 CFATTACH_DECL_NEW(mainbus, 0,
     54     mainbus_match, mainbus_attach, NULL, NULL);
     55 
     56 int
     57 mainbus_match(device_t parent, cfdata_t match, void *aux)
     58 {
     59 	return 1;
     60 }
     61 
     62 static int
     63 mainbus_print(void *aux, const char *pnp)
     64 {
     65 	struct mainbus_attach_args *mba = aux;
     66 
     67 	if (pnp) {
     68 		aprint_normal("%s at %s", mba->maa_name, pnp);
     69 	}
     70 	if (mba->maa_addr != MAINBUSCF_ADDR_DEFAULT) {
     71 		aprint_normal(" addr 0x%08lx", mba->maa_addr);
     72 	}
     73 	if (mba->maa_irq != MAINBUSCF_IRQ_DEFAULT) {
     74 		aprint_normal(" irq %d", mba->maa_irq);
     75 	}
     76 	return UNCONF;
     77 }
     78 
     79 void
     80 mainbus_attach(device_t parent, device_t self, void *aux)
     81 {
     82 	struct mainbus_attach_args maa;
     83 
     84 	aprint_normal(": Nintendo Wii\n");
     85 
     86 	/*
     87 	 * GCC 12 blames pointer reference to 0-th page, [0, 0xfff].
     88 	 * XXX map to higher address as done for, e.g., arm by devmap?
     89 	 */
     90 #pragma GCC diagnostic push
     91 #pragma GCC diagnostic ignored "-Warray-bounds"
     92 	aprint_debug_dev(self, "mem1 0x%x, mem2 0x%x\n",
     93 	    in32(GLOBAL_MEM1_SIZE), in32(GLOBAL_MEM2_SIZE));
     94 	aprint_debug_dev(self, "cpu %u, bus %u, vidmode %u\n",
     95 	    in32(GLOBAL_CPU_SPEED), in32(GLOBAL_BUS_SPEED),
     96 	    in32(GLOBAL_CUR_VID_MODE));
     97 #pragma GCC diagnostic pop
     98 
     99 	aprint_debug_dev(self, "ios version 0x%x\n", in32(GLOBAL_IOS_VERSION));
    100 
    101 	maa.maa_bst = &wii_mem_tag;
    102 	maa.maa_dmat = &wii_bus_dma_tag;
    103 
    104 	maa.maa_name = "cpu";
    105 	maa.maa_addr = MAINBUSCF_ADDR_DEFAULT;
    106 	maa.maa_irq = MAINBUSCF_IRQ_DEFAULT;
    107 	config_found(self, &maa, mainbus_print, CFARGS_NONE);
    108 
    109 	maa.maa_name = "genfb";
    110 	maa.maa_addr = VI_BASE;
    111 	maa.maa_irq = MAINBUSCF_IRQ_DEFAULT;
    112 	config_found(self, &maa, mainbus_print, CFARGS_NONE);
    113 
    114 	maa.maa_name = "exi";
    115 	maa.maa_addr = EXI_BASE;
    116 	maa.maa_irq = PI_IRQ_EXI;
    117 	config_found(self, &maa, mainbus_print, CFARGS_NONE);
    118 
    119 	maa.maa_name = "hollywood";
    120 	maa.maa_addr = MAINBUSCF_ADDR_DEFAULT;
    121 	maa.maa_irq = PI_IRQ_HOLLYWOOD;
    122 	config_found(self, &maa, mainbus_print, CFARGS_NONE);
    123 
    124 	maa.maa_name = "bwai";
    125 	maa.maa_addr = AI_BASE;
    126 	maa.maa_irq = PI_IRQ_AI;
    127 	config_found(self, &maa, mainbus_print, CFARGS_NONE);
    128 
    129 	maa.maa_name = "bwdsp";
    130 	maa.maa_addr = DSP_BASE;
    131 	maa.maa_irq = PI_IRQ_DSP;
    132 	config_found(self, &maa, mainbus_print, CFARGS_NONE);
    133 }
    134 
    135 static int	cpu_match(device_t, cfdata_t, void *);
    136 static void	cpu_attach(device_t, device_t, void *);
    137 
    138 CFATTACH_DECL_NEW(cpu, 0,
    139     cpu_match, cpu_attach, NULL, NULL);
    140 
    141 extern struct cfdriver cpu_cd;
    142 
    143 int
    144 cpu_match(device_t parent, cfdata_t cf, void *aux)
    145 {
    146 	struct mainbus_attach_args *maa = aux;
    147 
    148 	if (strcmp(maa->maa_name, cpu_cd.cd_name) != 0) {
    149 		return 0;
    150 	}
    151 
    152 	if (cpu_info[0].ci_dev != NULL) {
    153 		return 0;
    154 	}
    155 
    156 	return 1;
    157 }
    158 
    159 void
    160 cpu_attach(device_t parent, device_t self, void *aux)
    161 {
    162 	cpu_attach_common(self, 0);
    163 }
    164