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 42 /* CPU caches */ 43 u32 use_icache; 44 u32 icache_tagbits; 45 u32 icache_write; 46 u32 icache_line_length; 47 u32 icache_size; 48 unsigned long icache_base; 49 unsigned long icache_high; 50 51 u32 use_dcache; 52 u32 dcache_tagbits; 53 u32 dcache_write; 54 u32 dcache_line_length; 55 u32 dcache_size; 56 u32 dcache_wb; 57 unsigned long dcache_base; 58 unsigned long dcache_high; 59 60 /* Bus connections */ 61 u32 use_dopb; 62 u32 use_iopb; 63 u32 use_dlmb; 64 u32 use_ilmb; 65 u32 num_fsl; 66 67 /* CPU interrupt line info */ 68 u32 irq_edge; 69 u32 irq_positive; 70 71 u32 area_optimised; 72 73 /* HW debug support */ 74 u32 hw_debug; 75 u32 num_pc_brk; 76 u32 num_rd_brk; 77 u32 num_wr_brk; 78 u32 cpu_clock_freq; /* store real freq of cpu */ 79 u32 freq_div_hz; /* store freq/HZ */ 80 81 /* FPGA family */ 82 u32 fpga_family_code; 83 84 /* User define */ 85 u32 pvr_user1; 86 u32 pvr_user2; 87}; 88 89extern struct cpuinfo cpuinfo; 90 91/* fwd declarations of the various CPUinfo populators */ 92void setup_cpuinfo(void); 93 94void set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu); 95void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu); 96 97static inline unsigned int fcpu(struct device_node *cpu, char *n) 98{ 99 int *val; 100 return (val = (int *) of_get_property(cpu, n, NULL)) ? *val : 0; 101} 102 103#endif /* _ASM_MICROBLAZE_CPUINFO_H */ 104