1baea4807a
r259199, r259484, r259513, r259514, r259516 The kernel stack guard pages are only below the stack pointer, not above. Remove unnecessary double-setting of the thread's onfault state in copyinstr(). Open Firmware mandates that certain cross-references, in particular those in /chosen, be ihandles. The ePAPR spec makes those cross-reference phandles, since FDT has no concept of ihandles. Have the OF FDT CI module interpret queries about ihandles as cross-reference phandles. Real OF systems have an ihandle under /chosen/stdout, not a phandle. Use the right type. Rearchitect platform memory map parsing to make it less Open Firmware-centric. Remove fdtbus_bs_tag definition, which is now obsolete. The remainder of this file is also slated for future demolition. Return the correct IEEE 1275 code for "nextprop". Use the common Open Firmware PCI interrupt routing code instead of the duplicate version in dev/fdt. Configure interrupt sense based on device tree information. Simplify the ofw_bus_lookup_imap() API slightly: make it allocate maskbuf internally instead of requiring the caller to allocate it.
162 lines
4.2 KiB
C
162 lines
4.2 KiB
C
/*-
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* Copyright (C) 2012 Margarida Gouveia
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/bus.h>
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#include <sys/pcpu.h>
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#include <sys/proc.h>
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#include <sys/reboot.h>
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#include <sys/smp.h>
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#include <sys/fbio.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <machine/bus.h>
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#include <machine/cpu.h>
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#include <machine/hid.h>
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#include <machine/platform.h>
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#include <machine/platformvar.h>
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#include <machine/pmap.h>
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#include <machine/smp.h>
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#include <machine/spr.h>
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#include <machine/vmparam.h>
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#include <powerpc/wii/wii_fbreg.h>
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#include <powerpc/wii/wii_ipcreg.h>
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#include "platform_if.h"
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static int wii_probe(platform_t);
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static int wii_attach(platform_t);
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static void wii_mem_regions(platform_t, struct mem_region *,
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int *, struct mem_region *, int *);
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static unsigned long wii_timebase_freq(platform_t, struct cpuref *);
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static void wii_reset(platform_t);
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static void wii_cpu_idle(sbintime_t);
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extern void wiibus_reset_system(void);
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static platform_method_t wii_methods[] = {
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PLATFORMMETHOD(platform_probe, wii_probe),
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PLATFORMMETHOD(platform_attach, wii_attach),
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PLATFORMMETHOD(platform_mem_regions, wii_mem_regions),
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PLATFORMMETHOD(platform_timebase_freq, wii_timebase_freq),
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PLATFORMMETHOD(platform_reset, wii_reset),
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PLATFORMMETHOD_END
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};
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static platform_def_t wii_platform = {
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"wii",
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wii_methods,
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0
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};
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PLATFORM_DEF(wii_platform);
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static int
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wii_probe(platform_t plat)
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{
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register_t vers = mfpvr();
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/*
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* The Wii includes a PowerPC 750CL with custom modifications
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* ("Broadway").
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* For now, we just assume that if we are running on a
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* PowerPC 750CL, then this platform is a Nintendo Wii.
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*/
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if ((vers & 0xfffff0e0) == (MPC750 << 16 | MPC750CL))
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return (BUS_PROBE_SPECIFIC);
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return (ENXIO);
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}
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static int
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wii_attach(platform_t plat)
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{
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cpu_idle_hook = wii_cpu_idle;
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return (0);
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}
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static void
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wii_mem_regions(platform_t plat, struct mem_region *phys, int *physsz,
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struct mem_region *avail_regions, int *availsz)
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{
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/* 24MB 1T-SRAM */
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avail_regions[0].mr_start = 0x00000000;
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avail_regions[0].mr_size = 0x01800000;
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/*
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* Reserve space for the framebuffer which is located
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* at the end of this 24MB memory region. See wii_fbreg.h.
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*/
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avail_regions[0].mr_size -= WIIFB_FB_LEN;
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/* 64MB GDDR3 SDRAM */
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avail_regions[1].mr_start = 0x10000000;
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avail_regions[1].mr_size = 0x04000000;
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/*
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* Reserve space for the DSP.
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*/
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avail_regions[1].mr_start += 0x4000;
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avail_regions[1].mr_size -= 0x4000;
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/*
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* Reserve space for the IOS I/O memory.
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*/
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avail_regions[1].mr_size -= WIIIPC_IOH_LEN + 1;
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memcpy(phys, avail_regions, 2*sizeof(*avail_regions));
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*physsz = *availsz = 2;
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}
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static u_long
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wii_timebase_freq(platform_t plat, struct cpuref *cpuref)
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{
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/* Bus Frequency (243MHz) / 4 */
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return (60750000);
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}
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static void
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wii_reset(platform_t plat __unused)
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{
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wiibus_reset_system();
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}
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static void
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wii_cpu_idle(sbintime_t sbt)
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{
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}
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