mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-24 05:00:55 +07:00
e942242784
IP27 uses ARC prom only for parsing prom arguments and has a hack for IP27 to make the ARC code behave. By introducing config symbol ARC_CMDLINE_ONLY IP27 only drags in ARC cmdline parsing and does everything else in IP27 specific code. Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Burton <paul.burton@mips.com> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
112 lines
2.3 KiB
C
112 lines
2.3 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 (davem@davemloft.net)
|
|
*/
|
|
#include <linux/bug.h>
|
|
#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 flags;
|
|
};
|
|
|
|
static struct smatch mach_table[] = {
|
|
{
|
|
.arcname = "SGI-IP22",
|
|
.liname = "SGI Indy",
|
|
.flags = PROM_FLAG_ARCS,
|
|
}, {
|
|
.arcname = "SGI-IP28",
|
|
.liname = "SGI IP28",
|
|
.flags = PROM_FLAG_ARCS,
|
|
}, {
|
|
.arcname = "SGI-IP30",
|
|
.liname = "SGI Octane",
|
|
.flags = PROM_FLAG_ARCS,
|
|
}, {
|
|
.arcname = "SGI-IP32",
|
|
.liname = "SGI O2",
|
|
.flags = PROM_FLAG_ARCS,
|
|
}, {
|
|
.arcname = "Microsoft-Jazz",
|
|
.liname = "Jazz MIPS_Magnum_4000",
|
|
.flags = 0,
|
|
}, {
|
|
.arcname = "PICA-61",
|
|
.liname = "Jazz Acer_PICA_61",
|
|
.flags = 0,
|
|
}, {
|
|
.arcname = "RM200PCI",
|
|
.liname = "SNI RM200_PCI",
|
|
.flags = PROM_FLAG_DONT_FREE_TEMP,
|
|
}, {
|
|
.arcname = "RM200PCI-R5K",
|
|
.liname = "SNI RM200_PCI-R5K",
|
|
.flags = 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;
|
|
}
|
|
|
|
static pcomponent * __init ArcGetChild(pcomponent *Current)
|
|
{
|
|
return (pcomponent *) ARC_CALL1(child_component, Current);
|
|
}
|
|
|
|
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) {
|
|
iname = "Unknown";
|
|
} else
|
|
iname = (char *) (long) p->iname;
|
|
|
|
printk("ARCH: %s\n", iname);
|
|
mach = string_to_mach(iname);
|
|
system_type = mach->liname;
|
|
|
|
prom_flags = mach->flags;
|
|
}
|