extern char* __bss_start;
extern char* _end;
-static struct first_info *quik_fip = NULL;
-
int
yaboot_start (unsigned long r3, unsigned long r4, unsigned long r5)
{
/* OF seems to do it, but I'm not very confident */
memset(&__bss_start, 0, &_end - &__bss_start);
- /* Check for quik first stage bootloader (but I don't think we are
- * compatible with it anyway, I'll look into backporting to older OF
- * versions later
- */
- if (r5 == 0xdeadbeef) {
- r5 = r3;
- quik_fip = (struct first_info *)r4;
- }
-
/* Initialize OF interface */
prom_init ((prom_entry) r5);
static int first = 1;
static char imagepath[1024];
static char initrdpath[1024];
- static char sysmappath[1024];
static char manualinitrd[1024];
static int definitrd = 1, hasarg = 0;
params->args = "";
params->kernel.part = -1;
params->rd.part = -1;
- params->sysmap.part = -1;
defpart = boot.part;
cmdinit();
return 0;
}
}
- p = cfg_get_strg(label, "sysmap");
- if (p && *p) {
- DEBUG_F("Parsing sysmap path <%s>\n", p);
- strncpy(sysmappath, p, 1024);
- params->sysmap = boot; /* Copy all the original paramters */
- if (!parse_device_path(sysmappath, defdevice, defpart,
- "/boot/System.map", ¶ms->sysmap)) {
- prom_printf("%s: Unable to parse\n", imagepath);
- return 0;
- }
- }
}
return 0;
}
static struct boot_param_t params;
void *initrd_base;
unsigned long initrd_size;
- void *sysmap_base;
- unsigned long sysmap_size;
kernel_entry_t kernel_entry;
- struct bi_record* birec;
char* loc=NULL;
loadinfo_t loadinfo;
void *initrd_more,*initrd_want;
for (;;) {
initrd_size = 0;
initrd_base = 0;
- sysmap_base = 0;
- sysmap_size = 0;
if (get_params(¶ms))
return;
file.fs->close(&file);
memset(&file, 0, sizeof(file));
- /* If sysmap, load it (only if booting a vmlinux).
- */
- if (flat_vmlinux && params.sysmap.file) {
- prom_printf("Loading System.map ...\n");
- if(strlen(boot.file) && !strcmp(boot.file,"\\\\") && params.sysmap.file[0] != '/'
- && params.sysmap.file[0] != '\\') {
- if (loc) free(loc);
- loc=(char*)malloc(strlen(params.sysmap.file)+3);
- if (!loc) {
- prom_printf ("malloc error\n");
- goto next;
- }
- strcpy(loc,boot.file);
- strcat(loc,params.sysmap.file);
- free(params.sysmap.file);
- params.sysmap.file=loc;
- }
-
- result = open_file(¶ms.sysmap, &file);
- if (result != FILE_ERR_OK) {
- prom_printf("%s:%d,", params.sysmap.dev, params.sysmap.part);
- prom_perror(result, params.sysmap.file);
- }
- else {
- sysmap_base = prom_claim(loadinfo.base+loadinfo.memsize, 0x100000, 0);
- if (sysmap_base == (void *)-1) {
- prom_printf("Claim failed for sysmap memory\n");
- prom_pause();
- sysmap_base = 0;
- } else {
- sysmap_size = file.fs->read(&file, 0xfffff, sysmap_base);
- if (sysmap_size == 0)
- sysmap_base = 0;
- else
- ((char *)sysmap_base)[sysmap_size++] = 0;
- }
- file.fs->close(&file);
- memset(&file, 0, sizeof(file));
- }
- if (sysmap_base) {
- prom_printf("System.map loaded at %p, size: %lu Kbytes\n",
- sysmap_base, sysmap_size >> 10);
- loadinfo.memsize += _ALIGN(0x100000, 0x1000);
- } else {
- prom_printf("System.map load failed !\n");
- prom_pause();
- }
- }
-
/* If ramdisk, load it (only if booting a vmlinux). For now, we
* can't tell the size it will be so we claim an arbitrary amount
* of 4Mb.
flush_icache_range ((long)loadinfo.base, (long)loadinfo.base+loadinfo.memsize);
DEBUG_F(" done\n");
- if (flat_vmlinux) {
- /*
- * Fill new boot infos (only if booting a vmlinux).
- *
- * The birec is low on memory, probably inside the malloc pool,
- * so we don't write it earlier. At this point, we should not
- * use anything coming from the malloc pool.
- */
- birec = (struct bi_record *)_ALIGN(loadinfo.filesize+(1<<20)-1,(1<<20));
-
- /* We make sure it's mapped. We map only 64k for now, it's
- * plenty enough we don't claim since this precise memory
- * range may already be claimed by the malloc pool.
- */
- prom_map (birec, birec, 0x10000);
- DEBUG_F("birec at %p\n", birec);
- DEBUG_SLEEP;
-
- birec->tag = BI_FIRST;
- birec->size = sizeof(struct bi_record);
- birec = (struct bi_record *)((ulong)birec + birec->size);
-
- birec->tag = BI_BOOTLOADER_ID;
- sprintf( (char *)birec->data, "yaboot");
- birec->size = sizeof(struct bi_record) + strlen("yaboot") + 1;
- birec = (struct bi_record *)((ulong)birec + birec->size);
-
- birec->tag = BI_MACHTYPE;
- birec->data[0] = _machine;
- birec->size = sizeof(struct bi_record) + sizeof(ulong);
- birec = (struct bi_record *)((ulong)birec + birec->size);
-
- if (sysmap_base) {
- birec->tag = BI_SYSMAP;
- birec->data[0] = (ulong)sysmap_base;
- birec->data[1] = sysmap_size;
- birec->size = sizeof(struct bi_record) + sizeof(ulong)*2;
- birec = (struct bi_record *)((ulong)birec + birec->size);
- }
- birec->tag = BI_LAST;
- birec->size = sizeof(struct bi_record);
- birec = (struct bi_record *)((ulong)birec + birec->size);
- }
-
/* compute the kernel's entry point. */
kernel_entry = loadinfo.base + loadinfo.entry - loadinfo.load_loc;
goto bail;
}
- /* leave some room (1Mb) for boot infos */
- loadinfo->memsize = _ALIGN(loadinfo->memsize,(1<<20)) + 0x100000;
+ loadinfo->memsize = _ALIGN(loadinfo->memsize,(1<<20));
/* Claim OF memory */
DEBUG_F("Before prom_claim, mem_sz: 0x%08lx\n", loadinfo->memsize);
projects / yaboot.git / blobdiff