mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 21:54:06 +08:00
25b8ac3ba4
Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
124 lines
2.4 KiB
C
124 lines
2.4 KiB
C
/*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* identify.c: identify machine by looking up system identifier
|
|
*
|
|
* Copyright (C) 1998 Thomas Bogendoerfer
|
|
*
|
|
* This code is based on arch/mips/sgi/kernel/system.c, which is
|
|
*
|
|
* Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
|
|
*/
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/types.h>
|
|
#include <linux/string.h>
|
|
|
|
#include <asm/sgialib.h>
|
|
#include <asm/bootinfo.h>
|
|
|
|
struct smatch {
|
|
char *arcname;
|
|
char *liname;
|
|
int group;
|
|
int type;
|
|
int flags;
|
|
};
|
|
|
|
static struct smatch mach_table[] = {
|
|
{ "SGI-IP22",
|
|
"SGI Indy",
|
|
MACH_GROUP_SGI,
|
|
MACH_SGI_IP22,
|
|
PROM_FLAG_ARCS
|
|
}, { "SGI-IP27",
|
|
"SGI Origin",
|
|
MACH_GROUP_SGI,
|
|
MACH_SGI_IP27,
|
|
PROM_FLAG_ARCS
|
|
}, { "SGI-IP28",
|
|
"SGI IP28",
|
|
MACH_GROUP_SGI,
|
|
MACH_SGI_IP28,
|
|
PROM_FLAG_ARCS
|
|
}, { "SGI-IP30",
|
|
"SGI Octane",
|
|
MACH_GROUP_SGI,
|
|
MACH_SGI_IP30,
|
|
PROM_FLAG_ARCS
|
|
}, { "SGI-IP32",
|
|
"SGI O2",
|
|
MACH_GROUP_SGI,
|
|
MACH_SGI_IP32,
|
|
PROM_FLAG_ARCS
|
|
}, { "Microsoft-Jazz",
|
|
"Jazz MIPS_Magnum_4000",
|
|
MACH_GROUP_JAZZ,
|
|
MACH_MIPS_MAGNUM_4000,
|
|
0
|
|
}, { "PICA-61",
|
|
"Jazz Acer_PICA_61",
|
|
MACH_GROUP_JAZZ,
|
|
MACH_ACER_PICA_61,
|
|
0
|
|
}, { "RM200PCI",
|
|
"SNI RM200_PCI",
|
|
MACH_GROUP_SNI_RM,
|
|
MACH_SNI_RM200_PCI,
|
|
PROM_FLAG_DONT_FREE_TEMP
|
|
}
|
|
};
|
|
|
|
int prom_flags;
|
|
|
|
static struct smatch * __init string_to_mach(const char *s)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(mach_table); i++) {
|
|
if (!strcmp(s, mach_table[i].arcname))
|
|
return &mach_table[i];
|
|
}
|
|
|
|
panic("Yeee, could not determine architecture type <%s>", s);
|
|
}
|
|
|
|
char *system_type;
|
|
|
|
const char *get_system_type(void)
|
|
{
|
|
return system_type;
|
|
}
|
|
|
|
void __init prom_identify_arch(void)
|
|
{
|
|
pcomponent *p;
|
|
struct smatch *mach;
|
|
const char *iname;
|
|
|
|
/*
|
|
* The root component tells us what machine architecture we have here.
|
|
*/
|
|
p = ArcGetChild(PROM_NULL_COMPONENT);
|
|
if (p == NULL) {
|
|
#ifdef CONFIG_SGI_IP27
|
|
/* IP27 PROM misbehaves, seems to not implement ARC
|
|
GetChild(). So we just assume it's an IP27. */
|
|
iname = "SGI-IP27";
|
|
#else
|
|
iname = "Unknown";
|
|
#endif
|
|
} else
|
|
iname = (char *) (long) p->iname;
|
|
|
|
printk("ARCH: %s\n", iname);
|
|
mach = string_to_mach(iname);
|
|
system_type = mach->liname;
|
|
|
|
mips_machgroup = mach->group;
|
|
mips_machtype = mach->type;
|
|
prom_flags = mach->flags;
|
|
}
|