__dead void
landisk_startup(int howto, char *_esym)
{
u_int32_t ramsize;
/* Start to determine heap area */
esym = _esym;
kernend = (vaddr_t)round_page((vaddr_t)esym);
boothowto = howto;
ramsize = getramsize();
/* Initialize CPU ops. */
sh_cpu_init(CPU_ARCH_SH4, CPU_PRODUCT_7751R);
/* Initialize early console */
consinit();
/* Load memory to UVM */
if (ramsize == 0 || ramsize > 512 * 1024 * 1024)
ramsize = IOM_RAM_SIZE;
physmem = atop(ramsize);
kernend = atop(round_page(SH3_P1SEG_TO_PHYS(kernend)));
uvm_page_physload(atop(IOM_RAM_BEGIN),
atop(IOM_RAM_BEGIN + ramsize), kernend,
atop(IOM_RAM_BEGIN + ramsize), 0);
cpu_init_kcore_hdr(); /* need to be done before pmap_bootstrap */
/* Initialize proc0 u-area */
sh_proc0_init();
/* Initialize pmap and start to address translation */
pmap_bootstrap();
#if defined(DDB)
db_machine_init();
ddb_init();
if (boothowto & RB_KDB) {
Debugger();
}
#endif
/* Jump to main */
__asm volatile(
"jmp @%0\n\t"
" mov %1, sp"
:: "r" (main), "r" (proc0.p_md.md_pcb->pcb_sf.sf_r7_bank));
/* NOTREACHED */
for (;;) ;
}
void
dreamcast_startup()
{
extern char edata[], end[];
paddr_t kernend;
/* Clear bss */
memset(edata, 0, end - edata);
/* Initialize CPU ops. */
sh_cpu_init(CPU_ARCH_SH4, CPU_PRODUCT_7750);
/* Console */
consinit();
/* Load memory to UVM */
physmem = atop(IOM_RAM_SIZE);
kernend = atop(round_page(SH3_P1SEG_TO_PHYS(end)));
uvm_page_physload(
kernend, atop(IOM_RAM_BEGIN + IOM_RAM_SIZE),
kernend, atop(IOM_RAM_BEGIN + IOM_RAM_SIZE),
VM_FREELIST_DEFAULT);
/* Initialize proc0 u-area */
sh_proc0_init();
/* Initialize pmap and start to address translation */
pmap_bootstrap();
/* Debugger. */
#ifdef DDB
ddb_init(0, NULL, NULL);
#endif
#if defined(KGDB) && (NSCIF > 0)
if (scif_kgdb_init() == 0) {
kgdb_debug_init = 1;
kgdb_connect(1);
}
#endif /* KGDB && NSCIF > 0 */
/* Jump to main */
__asm__ __volatile__(
"jmp @%0;"
"mov %1, sp"
:: "r"(main),"r"(proc0.p_md.md_pcb->pcb_sf.sf_r7_bank));
/* NOTREACHED */
while (1)
;
}
void
machine_startup(int argc, char *argv[], struct bootinfo *bi)
{
extern char edata[], end[];
vaddr_t kernend;
size_t symbolsize;
int i;
char *p;
/*
* this routines stack is never polluted since stack pointer
* is lower than kernel text segment, and at exiting, stack pointer
* is changed to proc0.
*/
struct kloader_bootinfo kbi;
/* Symbol table size */
symbolsize = 0;
if (memcmp(&end, ELFMAG, SELFMAG) == 0) {
Elf_Ehdr *eh = (void *)end;
Elf_Shdr *sh = (void *)(end + eh->e_shoff);
for(i = 0; i < eh->e_shnum; i++, sh++)
if (sh->sh_offset > 0 &&
(sh->sh_offset + sh->sh_size) > symbolsize)
symbolsize = sh->sh_offset + sh->sh_size;
}
/* Clear BSS */
memset(edata, 0, end - edata);
/* Setup bootinfo */
bootinfo = &kbi.bootinfo;
memcpy(bootinfo, bi, sizeof(struct bootinfo));
if (bootinfo->magic == BOOTINFO_MAGIC) {
platid.dw.dw0 = bootinfo->platid_cpu;
platid.dw.dw1 = bootinfo->platid_machine;
}
/* CPU initialize */
if (platid_match(&platid, &platid_mask_CPU_SH_3))
sh_cpu_init(CPU_ARCH_SH3, CPU_PRODUCT_7709A);
else if (platid_match(&platid, &platid_mask_CPU_SH_4))
sh_cpu_init(CPU_ARCH_SH4, CPU_PRODUCT_7750);
/* Start to determine heap area */
kernend = (vaddr_t)sh3_round_page(end + symbolsize);
/* Setup bootstrap options */
makebootdev("wd0"); /* default boot device */
boothowto = 0;
for (i = 1; i < argc; i++) { /* skip 1st arg (kernel name). */
char *cp = argv[i];
switch (*cp) {
case 'b':
/* boot device: -b=sd0 etc. */
p = cp + 2;
#ifdef NFS
if (strcmp(p, "nfs") == 0)
mountroot = nfs_mountroot;
else
makebootdev(p);
#else /* NFS */
makebootdev(p);
#endif /* NFS */
break;
default:
BOOT_FLAG(*cp, boothowto);
break;
}
}
#ifdef MFS
/*
* Check to see if a mini-root was loaded into memory. It resides
* at the start of the next page just after the end of BSS.
*/
if (boothowto & RB_MINIROOT) {
size_t fssz;
fssz = sh3_round_page(mfs_initminiroot((void *)kernend));
#ifdef MEMORY_DISK_DYNAMIC
md_root_setconf((caddr_t)kernend, fssz);
#endif
kernend += fssz;
}
#endif /* MFS */
/* Console */
consinit();
#ifdef HPC_DEBUG_LCD
dbg_lcd_test();
#endif
/* copy boot parameter for kloader */
kloader_bootinfo_set(&kbi, argc, argv, bi, TRUE);
/* Find memory cluster. and load to UVM */
physmem = mem_cluster_init(SH3_P1SEG_TO_PHYS(kernend));
_DPRINTF("total memory = %dMbyte\n", (int)(sh3_ptob(physmem) >> 20));
mem_cluster_load();
/* Initialize proc0 u-area */
sh_proc0_init();
/* Initialize pmap and start to address translation */
pmap_bootstrap();
/* Debugger. */
#ifdef DDB
if (symbolsize) {
ddb_init(symbolsize, &end, end + symbolsize);
_DPRINTF("symbol size = %d byte\n", symbolsize);
}
if (boothowto & RB_KDB)
Debugger();
#endif /* DDB */
#ifdef KGDB
if (boothowto & RB_KDB) {
if (kgdb_dev == NODEV) {
printf("no kgdb console.\n");
} else {
kgdb_debug_init = 1;
kgdb_connect(1);
}
}
#endif /* KGDB */
/* Jump to main */
__asm__ __volatile__(
"jmp @%0;"
"mov %1, sp"
:: "r"(main),"r"(proc0.p_md.md_pcb->pcb_sf.sf_r7_bank));
/* NOTREACHED */
while (1)
;
}
