1/*
2 * Generic support for queying CPU info
3 *
4 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
5 * Copyright (C) 2007-2009 PetaLogix
6 * Copyright (C) 2007 John Williams <jwilliams@itee.uq.edu.au>
7 *
8 * This file is subject to the terms and conditions of the GNU General
9 * Public License. See the file COPYING in the main directory of this
10 * archive for more details.
11 */
12
13#ifndef _ASM_MICROBLAZE_CPUINFO_H
14#define _ASM_MICROBLAZE_CPUINFO_H
15
16#include <asm/prom.h>
17
18/* CPU Version and FPGA Family code conversion table type */
19struct cpu_ver_key {
20	const char *s;
21	const unsigned k;
22};
23
24extern const struct cpu_ver_key cpu_ver_lookup[];
25
26struct family_string_key {
27	const char *s;
28	const unsigned k;
29};
30
31extern const struct family_string_key family_string_lookup[];
32
33struct cpuinfo {
34	/* Core CPU configuration */
35	u32 use_instr;
36	u32 use_mult;
37	u32 use_fpu;
38	u32 use_exc;
39	u32 ver_code;
40	u32 mmu;
41	u32 mmu_privins;
42	u32 endian;
43
44	/* CPU caches */
45	u32 use_icache;
46	u32 icache_tagbits;
47	u32 icache_write;
48	u32 icache_line_length;
49	u32 icache_size;
50	unsigned long icache_base;
51	unsigned long icache_high;
52
53	u32 use_dcache;
54	u32 dcache_tagbits;
55	u32 dcache_write;
56	u32 dcache_line_length;
57	u32 dcache_size;
58	u32 dcache_wb;
59	unsigned long dcache_base;
60	unsigned long dcache_high;
61
62	/* Bus connections */
63	u32 use_dopb;
64	u32 use_iopb;
65	u32 use_dlmb;
66	u32 use_ilmb;
67	u32 num_fsl;
68
69	/* CPU interrupt line info */
70	u32 irq_edge;
71	u32 irq_positive;
72
73	u32 area_optimised;
74
75	/* HW debug support */
76	u32 hw_debug;
77	u32 num_pc_brk;
78	u32 num_rd_brk;
79	u32 num_wr_brk;
80	u32 cpu_clock_freq; /* store real freq of cpu */
81
82	/* FPGA family */
83	u32 fpga_family_code;
84
85	/* User define */
86	u32 pvr_user1;
87	u32 pvr_user2;
88};
89
90extern struct cpuinfo cpuinfo;
91
92/* fwd declarations of the various CPUinfo populators */
93void setup_cpuinfo(void);
94void setup_cpuinfo_clk(void);
95
96void set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu);
97void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu);
98
99static inline unsigned int fcpu(struct device_node *cpu, char *n)
100{
101	u32 val = 0;
102
103	of_property_read_u32(cpu, n, &val);
104
105	return val;
106}
107
108#endif /* _ASM_MICROBLAZE_CPUINFO_H */
109