Change the way boot strings are handled and the way the root device
is determined. This allows multiple internal disks in a raq2 to work.
This commit is contained in:
cyber
parent
38527630e2
commit
662f93aeeb
@ -1,4 +1,4 @@
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/* $NetBSD: autoconf.c,v 1.7 2000/06/06 18:00:13 soren Exp $ */
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/* $NetBSD: autoconf.c,v 1.8 2001/06/17 00:11:40 cyber Exp $ */
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/*
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* Copyright (c) 2000 Soren S. Jorvang. All rights reserved.
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@ -33,10 +33,13 @@
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#include <machine/cpu.h>
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struct device *booted_device;
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int booted_partition;
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extern char bootstring[];
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extern int netboot;
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extern int bootunit;
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extern int bootpart;
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static void findroot(void);
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struct device *booted_device;
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int booted_partition = 0;
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int cpuspeed = 100; /* Until we know more precisely. */
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@ -54,46 +57,38 @@ cpu_configure()
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void
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cpu_rootconf()
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{
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findroot();
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printf("boot device: %s\n",
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booted_device ? booted_device->dv_xname : "<unknown>");
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setroot(booted_device, booted_partition);
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}
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extern char bootstring[];
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extern int netboot;
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static void
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findroot(void)
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{
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struct device *dv;
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if (booted_device)
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return;
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if ((booted_device == NULL) && netboot == 0)
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for (dv = alldevs.tqh_first; dv != NULL;
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dv = dv->dv_list.tqe_next)
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if (dv->dv_class == DV_DISK &&
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!strcmp(dv->dv_cfdata->cf_driver->cd_name, "wd"))
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booted_device = dv;
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/*
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* XXX Match up MBR boot specification with BSD disklabel for root?
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*/
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booted_partition = 0;
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return;
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}
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static int hd_iterate = -1;
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void
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device_register(dev, aux)
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struct device *dev;
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void *aux;
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{
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if (booted_device)
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return;
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if ((booted_device == NULL) && (netboot == 1))
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if (dev->dv_class == DV_IFNET)
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booted_device = dev;
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if ((booted_device == NULL) && (netboot == 0)) {
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if (dev->dv_class == DV_DISK &&
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!strcmp(dev->dv_cfdata->cf_driver->cd_name, "wd")) {
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hd_iterate++;
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if (hd_iterate == bootunit) {
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booted_device = dev;
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}
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}
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/*
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* XXX Match up MBR boot specification with BSD disklabel for root?
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*/
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booted_partition = 0;
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}
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}
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@ -1,4 +1,4 @@
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/* $NetBSD: machdep.c,v 1.32 2001/06/02 18:09:11 chs Exp $ */
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/* $NetBSD: machdep.c,v 1.33 2001/06/17 00:11:41 cyber Exp $ */
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/*
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* Copyright (c) 2000 Soren S. Jorvang. All rights reserved.
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@ -75,6 +75,7 @@
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#include <dev/cons.h>
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/* For sysctl. */
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char machine[] = MACHINE;
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char machine_arch[] = MACHINE_ARCH;
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@ -93,11 +94,19 @@ int physmem; /* Total physical memory */
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char bootstring[512]; /* Boot command */
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int netboot; /* Are we netbooting? */
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char * nfsroot_bstr = NULL;
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char * root_bstr = NULL;
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int bootunit = -1;
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int bootpart = -1;
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phys_ram_seg_t mem_clusters[VM_PHYSSEG_MAX];
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int mem_cluster_cnt;
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void configure(void);
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void mach_init(unsigned int);
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void decode_bootstring(void);
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static char * strtok_light(char *, const char);
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/*
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* safepri is a safe priority for sleep to set for a spin-wait during
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@ -108,6 +117,8 @@ int safepri = MIPS1_PSL_LOWIPL;
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extern caddr_t esym;
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extern struct user *proc0paddr;
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/*
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* Do all the stuff that locore normally does before calling main().
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*/
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@ -119,7 +130,6 @@ mach_init(memsize)
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u_long first, last;
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vsize_t size;
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extern char edata[], end[];
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int i;
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/*
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* Clear the BSS segment.
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@ -163,26 +173,7 @@ mach_init(memsize)
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memset((char *)(memsize - 512), 0, 512);
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bootstring[511] = '\0';
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for (i = 0; i < 512; i++) {
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switch (bootstring[i]) {
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case '\0':
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break;
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case ' ':
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continue;
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case '-':
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while (bootstring[i] != ' ' && bootstring[i] != '\0') {
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BOOT_FLAG(bootstring[i], boothowto);
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i++;
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}
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}
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if (memcmp("single", bootstring + i, 5) == 0)
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boothowto |= RB_SINGLE;
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if (memcmp("nfsroot=", bootstring + i, 8) == 0)
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netboot = 1;
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/*
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* XXX Select root device from 'root=/dev/hd[abcd][1234]' too.
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*/
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}
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decode_bootstring();
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#ifdef DDB
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if (boothowto & RB_KDB)
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@ -529,3 +520,85 @@ cpu_intr(status, cause, pc, ipending)
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softclock(NULL);
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}
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}
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void
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decode_bootstring(void)
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{
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char * work;
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char * equ;
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int i;
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/* break apart bootstring on ' ' boundries and itterate*/
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work = strtok_light(bootstring, ' ');
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while (work != '\0') {
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/* if starts with '-', we got options, walk its decode */
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if (work[0] == '-') {
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i = 1;
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while (work[i] != ' ' && work[i] != '\0') {
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BOOT_FLAG(work[i], boothowto);
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i++;
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}
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} else
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/* if it has a '=' its an assignment, switch and set */
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if ((equ = strchr(work,'=')) != '\0') {
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if(0 == memcmp("nfsroot=", work, 8)) {
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nfsroot_bstr = (equ +1);
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} else
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if(0 == memcmp("root=", work, 5)) {
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root_bstr = (equ +1);
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}
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} else
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/* else it a single value, switch and process */
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if (memcmp("single", work, 5) == 0) {
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boothowto |= RB_SINGLE;
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} else
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if (memcmp("ro", work, 2) == 0) {
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/* this is also inserted by the firmware */
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}
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/* grab next token */
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work = strtok_light(NULL, ' ');
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}
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if (root_bstr != NULL) {
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/* this should be of the form "/dev/hda1" */
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/* [abcd][1234] drive partition linux probe order */
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if ((memcmp("/dev/hd",root_bstr,7) == 0) &&
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(strlen(root_bstr) == 9) ){
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bootunit = root_bstr[7] - 'a';
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bootpart = root_bstr[8] - '1';
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}
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}
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}
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static char *
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strtok_light(str, sep)
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char * str;
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const char sep;
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{
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static char * proc;
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char * head;
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char * work;
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if (str != NULL)
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proc = str;
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if (proc == NULL) /* end of string return NULL */
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return proc;
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head = proc;
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work = strchr (proc, sep);
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if (work == NULL) { /* we hit the end */
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proc = work;
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} else {
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proc = (work +1 );
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*work = '\0';
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}
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return head;
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}
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