diff options
Diffstat (limited to 'sys/arch/vax/stand/boot/boot.c')
| -rw-r--r-- | sys/arch/vax/stand/boot/boot.c | 299 |
1 files changed, 299 insertions, 0 deletions
diff --git a/sys/arch/vax/stand/boot/boot.c b/sys/arch/vax/stand/boot/boot.c new file mode 100644 index 00000000000..e6cde511d76 --- /dev/null +++ b/sys/arch/vax/stand/boot/boot.c @@ -0,0 +1,299 @@ +/* $OpenBSD: boot.c,v 1.1 2000/04/27 02:26:24 bjc Exp $ */ +/* $NetBSD: boot.c,v 1.4 1999/10/23 14:42:22 ragge Exp $ */ +/*- + * Copyright (c) 1982, 1986 The Regents of the University of California. + * 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 the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. + * + * @(#)boot.c 7.15 (Berkeley) 5/4/91 + */ + +#include "sys/param.h" +#include "sys/reboot.h" +#include "lib/libsa/stand.h" + +#define V750UCODE(x) ((x>>8)&255) + +#include "vaxstand.h" + +/* + * Boot program... arguments passed in r10 and r11 determine + * whether boot stops to ask for system name and which device + * boot comes from. + */ + +char line[100]; +int devtype, bootdev, howto, debug; +extern unsigned opendev; +extern unsigned *bootregs; + +void usage(), boot(), halt(); + +struct vals { + char *namn; + void (*func)(); + char *info; +} val[] = { + {"?", usage, "Show this help menu"}, + {"help", usage, "Same as '?'"}, + {"boot", boot, "Load and execute file"}, + {"halt", halt, "Halts the system"}, + {0, 0}, +}; + +char *filer[] = { + "bsd", + "bsd.gz", + "bsd.old", + 0, +}; + +Xmain() +{ + int io, type, sluttid, askname, filindex = 0; + int j, senast = 0, nu; + + io=0; + autoconf(); + + askname = howto & RB_ASKNAME; + printf("\n\r>> OpenBSD/vax boot [%s %s] <<\n", __DATE__, __TIME__); + printf(">> Press any key to abort autoboot "); + sluttid = getsecs() + 5; + for (;;) { + nu = sluttid - getsecs(); + if (senast != nu) + printf("%c%d", 8, nu); + if (nu <= 0) + break; + senast = nu; + if ((j = (testkey() & 0177))) { + if (j != 10 && j != 13) { + printf("\nPress '?' for help"); + askname = 1; + } + break; + } + } + printf("\n"); + + /* First try to autoboot */ + if (askname == 0) { + type = (devtype >> B_TYPESHIFT) & B_TYPEMASK; + if ((unsigned)type < ndevs && devsw[type].dv_name) + while (filer[filindex]) { + errno = 0; + printf("> boot %s\n", filer[filindex]); + exec(filer[filindex++], 0, 0); + printf("boot failed: %s\n", strerror(errno)); + if (testkey()) + break; + } + } + + /* If any key pressed, go to conversational boot */ + for (;;) { + struct vals *v = &val[0]; + char *c, *d; + + printf("> "); + gets(line); + + c = line; + while (*c == ' ') + c++; + + if (c[0] == 0) + continue; + + if ((d = index(c, ' '))) + *d++ = 0; + + while (v->namn) { + if (strcmp(v->namn, c) == 0) + break; + v++; + } + if (v->namn) + (*v->func)(d); + else + printf("Unknown command: %s\n", c); + + } +} + +void +halt() +{ + asm("halt"); +} + +void +boot(arg) + char *arg; +{ + char *fn = "bsd"; + + if (arg) { + while (*arg == ' ') + arg++; + + if (*arg != '-') { + fn = arg; + if ((arg = index(arg, ' '))) { + *arg++ = 0; + while (*arg == ' ') + arg++; + } else + goto load; + } + if (*arg != '-') { +fail: printf("usage: boot [filename] [-asd]\n"); + return; + } + + while (*++arg) { + if (*arg == 'a') + howto |= RB_ASKNAME; + else if (*arg == 'd') + howto |= RB_KDB; + else if (*arg == 's') + howto |= RB_SINGLE; + else + goto fail; + } + } +load: exec(fn, 0, 0); + printf("Boot failed: %s\n", strerror(errno)); +} + +/* 750 Patchable Control Store magic */ + +#include "../include/mtpr.h" +#include "../include/cpu.h" +#include "../include/sid.h" +#define PCS_BITCNT 0x2000 /* number of patchbits */ +#define PCS_MICRONUM 0x400 /* number of ucode locs */ +#define PCS_PATCHADDR 0xf00000 /* start addr of patchbits */ +#define PCS_PCSADDR (PCS_PATCHADDR+0x8000) /* start addr of pcs */ +#define PCS_PATCHBIT (PCS_PATCHADDR+0xc000) /* patchbits enable reg */ +#define PCS_ENABLE 0xfff00000 /* enable bits for pcs */ + +#define extzv(one, two, three,four) \ +({ \ + asm __volatile (" extzv %0,%3,(%1),(%2)+" \ + : \ + : "g"(one),"g"(two),"g"(three),"g"(four)); \ +}) + + +loadpcs() +{ + static int pcsdone = 0; + int mid = mfpr(PR_SID); + int i, j, *ip, *jp; + char pcs[100]; + char *cp; + + if ((mid >> 24) != VAX_750 || ((mid >> 8) & 255) < 95 || pcsdone) + return; + printf("Updating 11/750 microcode: "); + for (cp = line; *cp; cp++) + if (*cp == ')' || *cp == ':') + break; + if (*cp) { + bcopy(line, pcs, 99); + pcs[99] = 0; + i = cp - line + 1; + } else + i = 0; + strcpy(pcs + i, "pcs750.bin"); + i = open(pcs, 0); + if (i < 0) { + printf("bad luck - missing pcs750.bin :-(\n"); + return; + } + /* + * We ask for more than we need to be sure we get only what we expect. + * After read: + * locs 0 - 1023 packed patchbits + * 1024 - 11264 packed microcode + */ + if (read(i, (char *)0, 23*512) != 22*512) { + printf("Error reading %s\n", pcs); + close(i); + return; + } + close(i); + + /* + * Enable patchbit loading and load the bits one at a time. + */ + *((int *)PCS_PATCHBIT) = 1; + ip = (int *)PCS_PATCHADDR; + jp = (int *)0; + for (i=0; i < PCS_BITCNT; i++) { + extzv(i,jp,ip,1); + } + *((int *)PCS_PATCHBIT) = 0; + + /* + * Load PCS microcode 20 bits at a time. + */ + ip = (int *)PCS_PCSADDR; + jp = (int *)1024; + for (i=j=0; j < PCS_MICRONUM * 4; i+=20, j++) { + extzv(i,jp,ip,20); + } + + /* + * Enable PCS. + */ + i = *jp; /* get 1st 20 bits of microcode again */ + i &= 0xfffff; + i |= PCS_ENABLE; /* reload these bits with PCS enable set */ + *((int *)PCS_PCSADDR) = i; + + mid = mfpr(PR_SID); + printf("new rev level=%d\n", V750UCODE(mid)); + pcsdone = 1; +} + +void +usage() +{ + struct vals *v = &val[0]; + + printf("Commands:\n"); + while (v->namn) { + printf("%s\t%s\n", v->namn, v->info); + v++; + } +} |