1/*
2 *  arch/mips/au1000/common/cputable.c
3 *
4 *  Copyright (C) 2004 Dan Malek (dan@embeddededge.com)
5 *	Copied from PowerPC and updated for Alchemy Au1xxx processors.
6 *
7 *  Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
8 *
9 *  This program is free software; you can redistribute it and/or
10 *  modify it under the terms of the GNU General Public License
11 *  as published by the Free Software Foundation; either version
12 *  2 of the License, or (at your option) any later version.
13 */
14#include <linux/string.h>
15#include <linux/sched.h>
16#include <linux/threads.h>
17#include <linux/init.h>
18#include <asm/mach-au1x00/au1000.h>
19
20struct cpu_spec* cur_cpu_spec[NR_CPUS];
21
22/* With some thought, we can probably use the mask to reduce the
23 * size of the table.
24 */
25struct cpu_spec	cpu_specs[] = {
26    { 0xffffffff, 0x00030100, "Au1000 DA", 1, 0 },
27    { 0xffffffff, 0x00030201, "Au1000 HA", 1, 0 },
28    { 0xffffffff, 0x00030202, "Au1000 HB", 1, 0 },
29    { 0xffffffff, 0x00030203, "Au1000 HC", 1, 1 },
30    { 0xffffffff, 0x00030204, "Au1000 HD", 1, 1 },
31    { 0xffffffff, 0x01030200, "Au1500 AB", 1, 1 },
32    { 0xffffffff, 0x01030201, "Au1500 AC", 0, 1 },
33    { 0xffffffff, 0x01030202, "Au1500 AD", 0, 1 },
34    { 0xffffffff, 0x02030200, "Au1100 AB", 1, 1 },
35    { 0xffffffff, 0x02030201, "Au1100 BA", 1, 1 },
36    { 0xffffffff, 0x02030202, "Au1100 BC", 1, 1 },
37    { 0xffffffff, 0x02030203, "Au1100 BD", 0, 1 },
38    { 0xffffffff, 0x02030204, "Au1100 BE", 0, 1 },
39    { 0xffffffff, 0x03030200, "Au1550 AA", 0, 1 },
40    { 0xffffffff, 0x04030200, "Au1200 AB", 0, 0 },
41    { 0xffffffff, 0x04030201, "Au1200 AC", 1, 0 },
42    { 0x00000000, 0x00000000, "Unknown Au1xxx", 1, 0 },
43};
44
45void
46set_cpuspec(void)
47{
48	struct	cpu_spec *sp;
49	u32	prid;
50
51	prid = read_c0_prid();
52	sp = cpu_specs;
53	while ((prid & sp->prid_mask) != sp->prid_value)
54		sp++;
55	cur_cpu_spec[0] = sp;
56}
57