205 lines
4.6 KiB
C
205 lines
4.6 KiB
C
/*-
|
|
* Copyright (C) 2007 by Oleksandr Tymoshenko. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
|
|
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
|
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
|
|
* THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* $Id: $
|
|
*
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include "opt_ddb.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/imgact.h>
|
|
#include <sys/bio.h>
|
|
#include <sys/buf.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/cpu.h>
|
|
#include <sys/cons.h>
|
|
#include <sys/exec.h>
|
|
#include <sys/ucontext.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/kdb.h>
|
|
#include <sys/ptrace.h>
|
|
#include <sys/reboot.h>
|
|
#include <sys/signalvar.h>
|
|
#include <sys/sysent.h>
|
|
#include <sys/sysproto.h>
|
|
#include <sys/user.h>
|
|
|
|
#include <vm/vm.h>
|
|
#include <vm/vm_object.h>
|
|
#include <vm/vm_page.h>
|
|
#include <vm/vm_pager.h>
|
|
|
|
#include <machine/cache.h>
|
|
#include <machine/clock.h>
|
|
#include <machine/cpu.h>
|
|
#include <machine/cpuinfo.h>
|
|
#include <machine/cpufunc.h>
|
|
#include <machine/cpuregs.h>
|
|
#include <machine/hwfunc.h>
|
|
#include <machine/intr_machdep.h>
|
|
#include <machine/locore.h>
|
|
#include <machine/md_var.h>
|
|
#include <machine/pte.h>
|
|
#include <machine/sigframe.h>
|
|
#include <machine/trap.h>
|
|
#include <machine/vmparam.h>
|
|
|
|
extern int *edata;
|
|
extern int *end;
|
|
|
|
void
|
|
platform_cpu_init()
|
|
{
|
|
/* Nothing special */
|
|
}
|
|
|
|
void
|
|
platform_halt(void)
|
|
{
|
|
|
|
}
|
|
|
|
|
|
void
|
|
platform_identify(void)
|
|
{
|
|
|
|
}
|
|
|
|
void
|
|
platform_reset(void)
|
|
{
|
|
volatile unsigned int * p = (void *)0xb8008000;
|
|
/*
|
|
* TODO: we should take care of TLB stuff here. Otherwise
|
|
* board does not boots properly next time
|
|
*/
|
|
|
|
/* Write 0x8000_0001 to the Reset register */
|
|
*p = 0x80000001;
|
|
|
|
__asm __volatile("li $25, 0xbfc00000");
|
|
__asm __volatile("j $25");
|
|
}
|
|
|
|
void
|
|
platform_trap_enter(void)
|
|
{
|
|
|
|
}
|
|
|
|
void
|
|
platform_trap_exit(void)
|
|
{
|
|
|
|
}
|
|
|
|
void
|
|
platform_start(__register_t a0, __register_t a1,
|
|
__register_t a2 __unused, __register_t a3 __unused)
|
|
{
|
|
uint64_t platform_counter_freq;
|
|
vm_offset_t kernend;
|
|
int argc = a0;
|
|
char **argv = (char **)a1;
|
|
int i, mem;
|
|
|
|
|
|
/* clear the BSS and SBSS segments */
|
|
kernend = (vm_offset_t)&end;
|
|
memset(&edata, 0, kernend - (vm_offset_t)(&edata));
|
|
|
|
mips_postboot_fixup();
|
|
|
|
/* Initialize pcpu stuff */
|
|
mips_pcpu0_init();
|
|
|
|
/*
|
|
* Looking for mem=XXM argument
|
|
*/
|
|
mem = 0; /* Just something to start with */
|
|
for (i=0; i < argc; i++) {
|
|
if (strncmp(argv[i], "mem=", 4) == 0) {
|
|
mem = strtol(argv[i] + 4, NULL, 0);
|
|
break;
|
|
}
|
|
}
|
|
|
|
bootverbose = 1;
|
|
if (mem > 0)
|
|
realmem = btoc(mem << 20);
|
|
else
|
|
realmem = btoc(32 << 20);
|
|
|
|
for (i = 0; i < 10; i++) {
|
|
phys_avail[i] = 0;
|
|
}
|
|
|
|
/* phys_avail regions are in bytes */
|
|
phys_avail[0] = MIPS_KSEG0_TO_PHYS(kernel_kseg0_end);
|
|
phys_avail[1] = ctob(realmem);
|
|
|
|
dump_avail[0] = phys_avail[0];
|
|
dump_avail[1] = phys_avail[1];
|
|
|
|
physmem = realmem;
|
|
|
|
/*
|
|
* ns8250 uart code uses DELAY so ticker should be inititalized
|
|
* before cninit. And tick_init_params refers to hz, so * init_param1
|
|
* should be called first.
|
|
*/
|
|
init_param1();
|
|
/* TODO: parse argc,argv */
|
|
platform_counter_freq = 330000000UL;
|
|
mips_timer_init_params(platform_counter_freq, 1);
|
|
cninit();
|
|
/* Panic here, after cninit */
|
|
if (mem == 0)
|
|
panic("No mem=XX parameter in arguments");
|
|
|
|
printf("cmd line: ");
|
|
for (i=0; i < argc; i++)
|
|
printf("%s ", argv[i]);
|
|
printf("\n");
|
|
|
|
init_param2(physmem);
|
|
mips_cpu_init();
|
|
pmap_bootstrap();
|
|
mips_proc0_init();
|
|
mutex_init();
|
|
kdb_init();
|
|
#ifdef KDB
|
|
if (boothowto & RB_KDB)
|
|
kdb_enter(KDB_WHY_BOOTFLAGS, "Boot flags requested debugger");
|
|
#endif
|
|
}
|