+++ /dev/null
-/*
- * arch/mips/dec/decstation.c
- */
-#include <asm/sections.h>
-
-#define RELOC
-#define INITRD
-#define DEBUG_BOOT
-
-/*
- * Magic number indicating REX PROM available on DECSTATION.
- */
-#define REX_PROM_MAGIC 0x30464354
-
-#define REX_PROM_CLEARCACHE 0x7c/4
-#define REX_PROM_PRINTF 0x30/4
-
-#define VEC_RESET 0xBFC00000 /* Prom base address */
-#define PMAX_PROM_ENTRY(x) (VEC_RESET+((x)*8)) /* Prom jump table */
-#define PMAX_PROM_PRINTF PMAX_PROM_ENTRY(17)
-
-#define PARAM (k_start + 0x2000)
-
-#define LOADER_TYPE (*(unsigned char *) (PARAM+0x210))
-#define INITRD_START (*(unsigned long *) (PARAM+0x218))
-#define INITRD_SIZE (*(unsigned long *) (PARAM+0x21c))
-
-extern int _ftext; /* begin and end of kernel image */
-extern void kernel_entry(int, char **, unsigned long, int *);
-
-void * memcpy(void * dest, const void *src, unsigned int count)
-{
- unsigned long *tmp = (unsigned long *) dest, *s = (unsigned long *) src;
-
- count >>= 2;
- while (count--)
- *tmp++ = *s++;
-
- return dest;
-}
-
-void dec_entry(int argc, char **argv,
- unsigned long magic, int *prom_vec)
-{
- void (*rex_clear_cache)(void);
- int (*prom_printf)(char *, ...);
- unsigned long k_start, len;
-
- /*
- * The DS5100 leaves cpu with BEV enabled, clear it.
- */
- asm( "lui\t$8,0x3000\n\t"
- "mtc0\t$8,$12\n\t"
- ".section\t.sdata\n\t"
- ".section\t.sbss\n\t"
- ".section\t.text"
- : : : "$8");
-
-#ifdef DEBUG_BOOT
- if (magic == REX_PROM_MAGIC) {
- prom_printf = (int (*)(char *, ...)) *(prom_vec + REX_PROM_PRINTF);
- } else {
- prom_printf = (int (*)(char *, ...)) PMAX_PROM_PRINTF;
- }
- prom_printf("Launching kernel...\n");
-#endif
-
- k_start = (unsigned long) (&kernel_entry) & 0xffff0000;
-
-#ifdef RELOC
- /*
- * Now copy kernel image to its destination.
- */
- len = ((unsigned long) (&_end) - k_start);
- memcpy((void *)k_start, &_ftext, len);
-#endif
-
- if (magic == REX_PROM_MAGIC) {
- rex_clear_cache = (void (*)(void)) * (prom_vec + REX_PROM_CLEARCACHE);
- rex_clear_cache();
- }
-
- kernel_entry(argc, argv, magic, prom_vec);
-}