1239478Sadrian/*- 2239478Sadrian * Copyright (C) 2012 Margarida Gouveia 3239478Sadrian * All rights reserved. 4239478Sadrian * 5239478Sadrian * Redistribution and use in source and binary forms, with or without 6239478Sadrian * modification, are permitted provided that the following conditions 7239478Sadrian * are met: 8239478Sadrian * 1. Redistributions of source code must retain the above copyright 9239478Sadrian * notice, this list of conditions and the following disclaimer, 10239478Sadrian * without modification, immediately at the beginning of the file. 11239478Sadrian * 2. Redistributions in binary form must reproduce the above copyright 12239478Sadrian * notice, this list of conditions and the following disclaimer in the 13239478Sadrian * documentation and/or other materials provided with the distribution. 14239478Sadrian * 15239478Sadrian * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16239478Sadrian * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17239478Sadrian * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18239478Sadrian * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19239478Sadrian * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20239478Sadrian * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21239478Sadrian * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22239478Sadrian * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23239478Sadrian * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24239478Sadrian * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25239478Sadrian */ 26239478Sadrian#include <sys/cdefs.h> 27239478Sadrian__FBSDID("$FreeBSD$"); 28239478Sadrian 29239478Sadrian#include <sys/param.h> 30239478Sadrian#include <sys/systm.h> 31239478Sadrian#include <sys/kernel.h> 32239478Sadrian#include <sys/bus.h> 33239478Sadrian#include <sys/pcpu.h> 34239478Sadrian#include <sys/proc.h> 35239478Sadrian#include <sys/reboot.h> 36239478Sadrian#include <sys/smp.h> 37239478Sadrian#include <sys/fbio.h> 38239478Sadrian 39239478Sadrian#include <vm/vm.h> 40239478Sadrian#include <vm/pmap.h> 41239478Sadrian 42239478Sadrian#include <machine/bus.h> 43239478Sadrian#include <machine/cpu.h> 44239478Sadrian#include <machine/hid.h> 45239478Sadrian#include <machine/platform.h> 46239478Sadrian#include <machine/platformvar.h> 47239478Sadrian#include <machine/pmap.h> 48239478Sadrian#include <machine/smp.h> 49239478Sadrian#include <machine/spr.h> 50239478Sadrian#include <machine/vmparam.h> 51239478Sadrian 52239478Sadrian#include <powerpc/wii/wii_fbreg.h> 53241861Srpaulo#include <powerpc/wii/wii_ipcreg.h> 54239478Sadrian 55239478Sadrian#include "platform_if.h" 56239478Sadrian 57239478Sadrianstatic int wii_probe(platform_t); 58239478Sadrianstatic int wii_attach(platform_t); 59266020Sianstatic void wii_mem_regions(platform_t, struct mem_region *, 60266020Sian int *, struct mem_region *, int *); 61249973Srpaulostatic unsigned long wii_timebase_freq(platform_t, struct cpuref *); 62239478Sadrianstatic void wii_reset(platform_t); 63249973Srpaulostatic void wii_cpu_idle(sbintime_t); 64239478Sadrian 65249973Srpauloextern void wiibus_reset_system(void); 66249973Srpaulo 67239478Sadrianstatic platform_method_t wii_methods[] = { 68239478Sadrian PLATFORMMETHOD(platform_probe, wii_probe), 69239478Sadrian PLATFORMMETHOD(platform_attach, wii_attach), 70239478Sadrian PLATFORMMETHOD(platform_mem_regions, wii_mem_regions), 71239478Sadrian PLATFORMMETHOD(platform_timebase_freq, wii_timebase_freq), 72239478Sadrian PLATFORMMETHOD(platform_reset, wii_reset), 73239478Sadrian 74246732Srpaulo PLATFORMMETHOD_END 75239478Sadrian}; 76239478Sadrian 77239478Sadrianstatic platform_def_t wii_platform = { 78239478Sadrian "wii", 79239478Sadrian wii_methods, 80239478Sadrian 0 81239478Sadrian}; 82239478Sadrian 83239478SadrianPLATFORM_DEF(wii_platform); 84239478Sadrian 85239478Sadrianstatic int 86239478Sadrianwii_probe(platform_t plat) 87239478Sadrian{ 88239478Sadrian register_t vers = mfpvr(); 89239478Sadrian 90239478Sadrian /* 91239478Sadrian * The Wii includes a PowerPC 750CL with custom modifications 92239478Sadrian * ("Broadway"). 93239478Sadrian * For now, we just assume that if we are running on a 94239478Sadrian * PowerPC 750CL, then this platform is a Nintendo Wii. 95239478Sadrian */ 96239478Sadrian if ((vers & 0xfffff0e0) == (MPC750 << 16 | MPC750CL)) 97239478Sadrian return (BUS_PROBE_SPECIFIC); 98239478Sadrian 99239478Sadrian return (ENXIO); 100239478Sadrian} 101239478Sadrian 102239478Sadrianstatic int 103239478Sadrianwii_attach(platform_t plat) 104239478Sadrian{ 105239478Sadrian cpu_idle_hook = wii_cpu_idle; 106239478Sadrian 107239478Sadrian return (0); 108239478Sadrian} 109239478Sadrian 110239478Sadrianstatic void 111266020Sianwii_mem_regions(platform_t plat, struct mem_region *phys, int *physsz, 112266020Sian struct mem_region *avail_regions, int *availsz) 113239478Sadrian{ 114239478Sadrian /* 24MB 1T-SRAM */ 115239478Sadrian avail_regions[0].mr_start = 0x00000000; 116241861Srpaulo avail_regions[0].mr_size = 0x01800000; 117239478Sadrian 118239478Sadrian /* 119239478Sadrian * Reserve space for the framebuffer which is located 120239478Sadrian * at the end of this 24MB memory region. See wii_fbreg.h. 121239478Sadrian */ 122239478Sadrian avail_regions[0].mr_size -= WIIFB_FB_LEN; 123239478Sadrian 124239478Sadrian /* 64MB GDDR3 SDRAM */ 125241861Srpaulo avail_regions[1].mr_start = 0x10000000; 126241861Srpaulo avail_regions[1].mr_size = 0x04000000; 127239478Sadrian 128241861Srpaulo /* 129241861Srpaulo * Reserve space for the DSP. 130241861Srpaulo */ 131241861Srpaulo avail_regions[1].mr_start += 0x4000; 132241861Srpaulo avail_regions[1].mr_size -= 0x4000; 133239478Sadrian 134241861Srpaulo /* 135241861Srpaulo * Reserve space for the IOS I/O memory. 136241861Srpaulo */ 137241861Srpaulo avail_regions[1].mr_size -= WIIIPC_IOH_LEN + 1; 138241861Srpaulo 139266020Sian memcpy(phys, avail_regions, 2*sizeof(*avail_regions)); 140266020Sian *physsz = *availsz = 2; 141239478Sadrian} 142239478Sadrian 143239478Sadrianstatic u_long 144239478Sadrianwii_timebase_freq(platform_t plat, struct cpuref *cpuref) 145239478Sadrian{ 146239478Sadrian 147239478Sadrian /* Bus Frequency (243MHz) / 4 */ 148239478Sadrian return (60750000); 149239478Sadrian} 150239478Sadrian 151239478Sadrianstatic void 152249973Srpaulowii_reset(platform_t plat __unused) 153239478Sadrian{ 154249973Srpaulo 155249973Srpaulo wiibus_reset_system(); 156239478Sadrian} 157239478Sadrian 158239478Sadrianstatic void 159247454Sdavidewii_cpu_idle(sbintime_t sbt) 160239478Sadrian{ 161239478Sadrian} 162