cpuinfo.h

  1/* SPDX-License-Identifier: GPL-2.0 */
  2/*
  3 * Generic support for queying CPU info
  4 *
  5 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
  6 * Copyright (C) 2007-2009 PetaLogix
  7 * Copyright (C) 2007 John Williams <jwilliams@itee.uq.edu.au>
  8 */
  9
 10#ifndef _ASM_MICROBLAZE_CPUINFO_H
 11#define _ASM_MICROBLAZE_CPUINFO_H
 12
 13#include <linux/of.h>
 14
 15/* CPU Version and FPGA Family code conversion table type */
 16struct cpu_ver_key {
 17	const char *s;
 18	const unsigned k;
 19};
 20
 21extern const struct cpu_ver_key cpu_ver_lookup[];
 22
 23struct family_string_key {
 24	const char *s;
 25	const unsigned k;
 26};
 27
 28extern const struct family_string_key family_string_lookup[];
 29
 30struct cpuinfo {
 31	/* Core CPU configuration */
 32	u32 use_instr;
 33	u32 use_mult;
 34	u32 use_fpu;
 35	u32 use_exc;
 36	u32 ver_code;
 37	u32 mmu;
 38	u32 mmu_privins;
 39	u32 endian;
 40
 41	/* CPU caches */
 42	u32 use_icache;
 43	u32 icache_tagbits;
 44	u32 icache_write;
 45	u32 icache_line_length;
 46	u32 icache_size;
 47	unsigned long icache_base;
 48	unsigned long icache_high;
 49
 50	u32 use_dcache;
 51	u32 dcache_tagbits;
 52	u32 dcache_write;
 53	u32 dcache_line_length;
 54	u32 dcache_size;
 55	u32 dcache_wb;
 56	unsigned long dcache_base;
 57	unsigned long dcache_high;
 58
 59	/* Bus connections */
 60	u32 use_dopb;
 61	u32 use_iopb;
 62	u32 use_dlmb;
 63	u32 use_ilmb;
 64	u32 num_fsl;
 65
 66	/* CPU interrupt line info */
 67	u32 irq_edge;
 68	u32 irq_positive;
 69
 70	u32 area_optimised;
 71
 72	/* HW debug support */
 73	u32 hw_debug;
 74	u32 num_pc_brk;
 75	u32 num_rd_brk;
 76	u32 num_wr_brk;
 77	u32 cpu_clock_freq; /* store real freq of cpu */
 78
 79	/* FPGA family */
 80	u32 fpga_family_code;
 81
 82	/* User define */
 83	u32 pvr_user1;
 84	u32 pvr_user2;
 85};
 86
 87extern struct cpuinfo cpuinfo;
 88
 89/* fwd declarations of the various CPUinfo populators */
 90void setup_cpuinfo(void);
 91void setup_cpuinfo_clk(void);
 92
 93void set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu);
 94void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu);
 95
 96static inline unsigned int fcpu(struct device_node *cpu, char *n)
 97{
 98	u32 val = 0;
 99
100	of_property_read_u32(cpu, n, &val);
101
102	return val;
103}
104
105#endif /* _ASM_MICROBLAZE_CPUINFO_H */