1 /* 2 * Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch> 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program. If not, see <http://www.gnu.org/licenses/>. 16 * 17 */ 18 19 #ifndef _ASM_NIOS2_CPUINFO_H 20 #define _ASM_NIOS2_CPUINFO_H 21 22 #include <linux/types.h> 23 24 struct cpuinfo { 25 /* Core CPU configuration */ 26 char cpu_impl[12]; 27 u32 cpu_clock_freq; 28 bool mmu; 29 bool has_div; 30 bool has_mul; 31 bool has_mulx; 32 33 /* CPU caches */ 34 u32 icache_line_size; 35 u32 icache_size; 36 u32 dcache_line_size; 37 u32 dcache_size; 38 39 /* TLB */ 40 u32 tlb_pid_num_bits; /* number of bits used for the PID in TLBMISC */ 41 u32 tlb_num_ways; 42 u32 tlb_num_ways_log2; 43 u32 tlb_num_entries; 44 u32 tlb_num_lines; 45 u32 tlb_ptr_sz; 46 47 /* Addresses */ 48 u32 reset_addr; 49 u32 exception_addr; 50 u32 fast_tlb_miss_exc_addr; 51 }; 52 53 extern struct cpuinfo cpuinfo; 54 55 extern void setup_cpuinfo(void); 56 57 #endif /* _ASM_NIOS2_CPUINFO_H */ 58