/* $NetBSD: boot.c,v 1.21 2019/09/03 14:18:32 martin Exp $ */
/*
* Copyright (C) 1995, 1996 Wolfgang Solfrank.
* Copyright (C) 1995, 1996 TooLs GmbH.
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by TooLs GmbH.
* 4. The name of TooLs GmbH may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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 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 <lib/libsa/stand.h>
#include <lib/libsa/loadfile.h>
#include <lib/libkern/libkern.h>
#include <sys/reboot.h>
#include <sys/boot_flag.h>
#include <machine/bootinfo.h>
#include <machine/cpu.h>
#include <machine/residual.h>
#include <powerpc/spr.h>
#include <powerpc/oea/spr.h>
#include "boot.h"
#include "sdvar.h"
char *names[] = {
#ifdef SCSI_SUPPORT
"sd(0,0,0)netbsd", "sd(0,0,0)onetbsd",
#endif
"in()",
};
#define NUMNAMES (sizeof (names) / sizeof (names[0]))
#define NAMELEN 128
char namebuf[NAMELEN];
char nametmp[NAMELEN];
char bootinfo[BOOTINFO_MAXSIZE];
struct btinfo_residual btinfo_residual;
struct btinfo_console btinfo_console;
struct btinfo_clock btinfo_clock;
RESIDUAL residual;
extern u_long ns_per_tick;
extern char bootprog_name[], bootprog_rev[];
void boot(void *, u_long);
static void exec_kernel(char *);
void
boot(void *resp, u_long loadaddr)
{
extern char _end[], _edata[];
int n = 0;
int addr, speed;
unsigned int cpuvers;
char *name, *cnname, *p;
/* Clear all of BSS */
memset(_edata, 0, _end - _edata);
/*
* console init
*/
cnname = cninit(&addr, &speed);
#ifdef VGA_RESET
vga_reset((u_char *)0xc0000000);
#endif
/* make bootinfo */
/*
* residual data
*/
btinfo_residual.common.next = sizeof(btinfo_residual);
btinfo_residual.common.type = BTINFO_RESIDUAL;
if (resp) {
memcpy(&residual, resp, sizeof(residual));
btinfo_residual.addr = (void *)&residual;
} else {
printf("Warning: no residual data.\n");
btinfo_residual.addr = 0;
}
/*
* console
*/
btinfo_console.common.next = sizeof(btinfo_console);
btinfo_console.common.type = BTINFO_CONSOLE;
strcpy(btinfo_console.devname, cnname);
btinfo_console.addr = addr;
btinfo_console.speed = speed;
/*
* clock
*/
__asm volatile ("mfpvr %0" : "=r"(cpuvers));
cpuvers >>= 16;
btinfo_clock.common.next = 0;
btinfo_clock.common.type = BTINFO_CLOCK;
if (cpuvers == MPC601) {
btinfo_clock.ticks_per_sec = 1000000000;
} else {
btinfo_clock.ticks_per_sec = resp ?
residual.VitalProductData.ProcessorBusHz/4 : TICKS_PER_SEC;
}
ns_per_tick = 1000000000 / btinfo_clock.ticks_per_sec;
p = bootinfo;
memcpy(p, (void *)&btinfo_residual, sizeof(btinfo_residual));
p += sizeof(btinfo_residual);
memcpy(p, (void *)&btinfo_console, sizeof(btinfo_console));
p += sizeof(btinfo_console);
memcpy(p, (void *)&btinfo_clock, sizeof(btinfo_clock));
/*
* load kernel if attached
*/
init_in(loadaddr);
printf("\n");
printf(">> %s, Revision %s\n", bootprog_name, bootprog_rev);
printf("\n");
#ifdef SCSI_SUPPORT
/*
* Initialize siop@pci0 dev 16 func 0
*/
siop_init(0, 16, 0);
#endif
for (;;) {
name = names[n++];
if (n >= NUMNAMES)
n = 0;
exec_kernel(name);
}
}
/*
* Exec kernel
*/
static void
exec_kernel(char *name)
{
int howto = 0;
char c, *ptr;
u_long marks[MARK_MAX];
#ifdef DBMONITOR
int go_monitor;
extern int db_monitor(void);
ret:
#endif /* DBMONITOR */
printf("\nBoot: ");
memset(namebuf, 0, sizeof (namebuf));
if (tgets(namebuf) == -1)
printf("\n");
ptr = namebuf;
#ifdef DBMONITOR
go_monitor = 0;
if (*ptr == '!') {
if (*(++ptr) == NULL) {
db_monitor();
printf("\n");
goto ret;
} else {
go_monitor++;
}
}
#endif /* DBMONITOR */
while ((c = *ptr)) {
while (c == ' ')
c = *++ptr;
if (!c)
goto next;
if (c == '-') {
while ((c = *++ptr) && c != ' ')
BOOT_FLAG(c, howto);
} else {
name = ptr;
while ((c = *++ptr) && c != ' ');
if (c)
*ptr++ = 0;
}
}
next:
printf("Loading %s", name);
if (howto)
printf(" (howto 0x%x)", howto);
printf("\n");
marks[MARK_START] = 0;
if (loadfile(name, marks, LOAD_ALL) == 0) {
#ifdef DBMONITOR
if (go_monitor) {
db_monitor();
printf("\n");
}
#endif /* DBMONITOR */
printf("start=0x%lx\n\n", marks[MARK_ENTRY]);
delay(1000);
__syncicache((void *)marks[MARK_ENTRY],
(u_int)marks[MARK_SYM] - (u_int)marks[MARK_ENTRY]);
run((void *)marks[MARK_SYM],
(void *)marks[MARK_END],
(void *)howto,
(void *)bootinfo,
(void *)marks[MARK_ENTRY]);
}
}
void
_rtt(void)
{
/* XXXX */
__unreachable();
}
