Michal Simek | 406107d | 2009-03-27 14:25:11 +0100 | [diff] [blame] | 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 */ |
| 19 | struct cpu_ver_key { |
| 20 | const char *s; |
| 21 | const unsigned k; |
| 22 | }; |
| 23 | |
| 24 | extern const struct cpu_ver_key cpu_ver_lookup[]; |
| 25 | |
| 26 | struct family_string_key { |
| 27 | const char *s; |
| 28 | const unsigned k; |
| 29 | }; |
| 30 | |
| 31 | extern const struct family_string_key family_string_lookup[]; |
| 32 | |
| 33 | struct 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; |
| 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; |
| 55 | u32 dcache_size; |
| 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 | u32 freq_div_hz; /* store freq/HZ */ |
| 79 | |
| 80 | /* FPGA family */ |
| 81 | u32 fpga_family_code; |
| 82 | |
| 83 | /* User define */ |
| 84 | u32 pvr_user1; |
| 85 | u32 pvr_user2; |
| 86 | }; |
| 87 | |
| 88 | extern struct cpuinfo cpuinfo; |
| 89 | |
| 90 | /* fwd declarations of the various CPUinfo populators */ |
| 91 | void setup_cpuinfo(void); |
| 92 | |
| 93 | void set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu); |
| 94 | void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu); |
| 95 | |
| 96 | static inline unsigned int fcpu(struct device_node *cpu, char *n) |
| 97 | { |
| 98 | int *val; |
| 99 | return (val = (int *) of_get_property(cpu, n, NULL)) ? *val : 0; |
| 100 | } |
| 101 | |
| 102 | #endif /* _ASM_MICROBLAZE_CPUINFO_H */ |