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/*-
* Copyright (C) 2010-2011 by Aleksandr Rybalko. All rights reserved.
* 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.
*
*/
#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 <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>
#include <mips/rt305x/rt305xreg.h>
#include <mips/rt305x/rt305x_sysctlvar.h>
extern int *edata;
extern int *end;
static char boot1_env[0x1000];
void
platform_cpu_init()
{
/* Nothing special */
}
static void
mips_init(void)
{
int i;
char *memsize;
printf("entry: mips_init()\n");
if ((memsize = kern_getenv("memsize")) != NULL)
realmem = btoc(strtol(memsize, NULL, 0) << 20);
else
realmem = btoc(32 << 20);
bootverbose = 1;
for (i = 0; i < 10; i++) {
phys_avail[i] = 0;
}
/* phys_avail regions are in bytes */
dump_avail[0] = phys_avail[0] = MIPS_KSEG0_TO_PHYS(kernel_kseg0_end);
dump_avail[1] = phys_avail[1] = ctob(realmem);
physmem = realmem;
init_param1();
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
}
void
platform_reset(void)
{
#if !defined(MT7620) && !defined(RT5350)
__asm __volatile("li $25, 0xbf000000");
__asm __volatile("j $25");
#else
rt305x_sysctl_set(SYSCTL_RSTCTRL, 1);
while (1);
#endif
}
void
platform_start(__register_t a0 __unused, __register_t a1 __unused,
__register_t a2 __unused, __register_t a3 __unused)
{
vm_offset_t kernend;
uint64_t platform_counter_freq = PLATFORM_COUNTER_FREQ;
int i;
int argc = a0;
char **argv = (char **)MIPS_PHYS_TO_KSEG0(a1);
char **envp = (char **)MIPS_PHYS_TO_KSEG0(a2);
/* 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();
mips_timer_early_init(platform_counter_freq / 2);
/* initialize console so that we have printf */
boothowto |= (RB_SERIAL | RB_MULTIPLE); /* Use multiple consoles */
boothowto |= (RB_VERBOSE);
cninit();
init_static_kenv(boot1_env, sizeof(boot1_env));
printf("U-Boot args (from %d args):\n", argc - 1);
if (argc == 1)
printf("\tNone\n");
for (i = 1; i < argc; i++) {
char *n = "argv ", *arg;
if (i > 99)
break;
if (argv[i])
{
arg = (char *)(intptr_t)MIPS_PHYS_TO_KSEG0(argv[i]);
printf("\targv[%d] = %s\n", i, arg);
sprintf(n, "argv%d", i);
kern_setenv(n, arg);
}
}
printf("Environment:\n");
for (i = 0; envp[i] && MIPS_IS_VALID_PTR(envp[i]); i++) {
char *n, *arg;
arg = (char *)(intptr_t)MIPS_PHYS_TO_KSEG0(envp[i]);
if (! MIPS_IS_VALID_PTR(arg))
continue;
printf("\t%s\n", arg);
n = strsep(&arg, "=");
if (arg == NULL)
kern_setenv(n, "1");
else
kern_setenv(n, arg);
}
mips_init();
mips_timer_init_params(platform_counter_freq, 1);
}
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