diff options
Diffstat (limited to 'sys/arch/arc/arc/arcbios.c')
| -rw-r--r-- | sys/arch/arc/arc/arcbios.c | 48 |
1 files changed, 46 insertions, 2 deletions
diff --git a/sys/arch/arc/arc/arcbios.c b/sys/arch/arc/arc/arcbios.c index defd56eb6e9..ac9f0fb4470 100644 --- a/sys/arch/arc/arc/arcbios.c +++ b/sys/arch/arc/arc/arcbios.c @@ -1,4 +1,4 @@ -/* $OpenBSD: arcbios.c,v 1.7 1997/04/19 17:19:38 pefo Exp $ */ +/* $OpenBSD: arcbios.c,v 1.8 1997/05/01 15:13:28 pefo Exp $ */ /*- * Copyright (c) 1996 M. Warner Losh. All rights reserved. * Copyright (c) 1996 Per Fogelstrom. All rights reserved. @@ -29,6 +29,7 @@ */ #include <sys/param.h> +#include <sys/systm.h> #include <sys/proc.h> #include <sys/user.h> #include <lib/libkern/libkern.h> @@ -46,6 +47,8 @@ extern int physmem; /* Total physical memory size */ int Bios_Read __P((int, char *, int, int *)); int Bios_Write __P((int, char *, int, int *)); +int Bios_Open __P((char *, int, u_int *)); +int Bios_Close __P((u_int)); arc_mem_t *Bios_GetMemoryDescriptor __P((arc_mem_t *)); arc_sid_t *Bios_GetSystemId __P((void)); arc_config_t *Bios_GetChild __P((arc_config_t *)); @@ -258,7 +261,8 @@ get_cpu_type() arc_sid_t *sid; int i; - if(bios_base->magic != ARC_PARAM_BLK_MAGIC) { + if((bios_base->magic != ARC_PARAM_BLK_MAGIC) && + (bios_base->magic != ARC_PARAM_BLK_MAGIC_BUG)) { return(-1); /* This is not an ARC system */ } @@ -318,3 +322,43 @@ bios_display_info(xpos, ypos, xsize, ysize) *ysize = displayinfo.CursorMaxYPosition; } +/* + * Load the incore miniroot into memory. This is used for + * Initial booting before we have any file system. CD-rom booting. + */ +int +bios_load_miniroot(path, where) + char *path; + caddr_t where; +{ + u_int file; + u_int count; + int i; + char s[32]; + +static char mrdefault[] = {"scsi(0)disk(0)rdisk(0)partition(1)\\miniroot" }; + + bios_putstring("Loading miniroot:"); + + if(path == 0) + path = mrdefault; + bios_putstring(path); + bios_putstring("\n"); + + if((i = Bios_Open(path,0,&file)) != arc_ESUCCESS) { + sprintf(s, "Error %d. Load failed!\n", i); + bios_putstring(s); + return(-1); + } + do { + + i = Bios_Read(file, where, 4096, &count); + bios_putstring("."); + where += count; + } while((i == 0) && (count != 0)); + + Bios_Close(file); + bios_putstring("\nLoaded.\n"); + return(0); +} + |