| 0,0 → 1,131 |
|---|
| /* |
| * Copyright (c) 2007 Michal Kebrt |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** @addtogroup arm32 |
| * @{ |
| */ |
| /** @file |
| * @brief CPU identification. |
| */ |
| |
| #include <arch/cpu.h> |
| #include <cpu.h> |
| #include <arch.h> |
| #include <print.h> |
| |
| /** Number of indexes left out in the #imp_data array */ |
| #define IMP_DATA_START_OFFSET 0x40 |
| |
| /** Implementators (vendor) names */ |
| static char *imp_data[] = { |
| "?", /* IMP_DATA_START_OFFSET */ |
| "ARM Ltd", /* 0x41 */ |
| "", /* 0x42 */ |
| "", /* 0x43 */ |
| "Digital Equipment Corporation", /* 0x44 */ |
| "", "", "", "", "", "", "", "", "", "", /* 0x45 - 0x4e */ |
| "", "", "", "", "", "", "", "", "", "", /* 0x4f - 0x58 */ |
| "", "", "", "", "", "", "", "", "", "", /* 0x59 - 0x62 */ |
| "", "", "", "", "", "", /* 0x63 - 0x68 */ |
| "Intel Corporation" /* 0x69 */ |
| }; |
| |
| /** Length of the #imp_data array */ |
| static unsigned int imp_data_length = sizeof(imp_data) / sizeof(char *); |
| |
| /** Architecture names */ |
| static char *arch_data[] = { |
| "?", /* 0x0 */ |
| "4", /* 0x1 */ |
| "4T", /* 0x2 */ |
| "5", /* 0x3 */ |
| "5T", /* 0x4 */ |
| "5TE", /* 0x5 */ |
| "5TEJ", /* 0x6 */ |
| "6" /* 0x7 */ |
| }; |
| |
| /** Length of the #arch_data array */ |
| static unsigned int arch_data_length = sizeof(arch_data) / sizeof(char *); |
| |
| |
| /** Retrieves processor identification from CP15 register 0. |
| * |
| * @param cpu Structure for storing CPU identification. |
| */ |
| static void arch_cpu_identify(cpu_arch_t *cpu) |
| { |
| uint32_t ident; |
| asm volatile ( |
| "mrc p15, 0, %0, c0, c0, 0\n" |
| : "=r" (ident) |
| ); |
| |
| cpu->imp_num = ident >> 24; |
| cpu->variant_num = (ident << 8) >> 28; |
| cpu->arch_num = (ident << 12) >> 28; |
| cpu->prim_part_num = (ident << 16) >> 20; |
| cpu->rev_num = (ident << 28) >> 28; |
| } |
| |
| /** Does nothing on ARM. */ |
| void cpu_arch_init(void) |
| { |
| } |
| |
| /** Retrieves processor identification and stores it to #CPU.arch */ |
| void cpu_identify(void) |
| { |
| arch_cpu_identify(&CPU->arch); |
| } |
| |
| /** Prints CPU identification. */ |
| void cpu_print_report(cpu_t *m) |
| { |
| char * vendor = imp_data[0]; |
| char * architecture = arch_data[0]; |
| cpu_arch_t * cpu_arch = &m->arch; |
| |
| if ((cpu_arch->imp_num) > 0 && |
| (cpu_arch->imp_num < (imp_data_length + IMP_DATA_START_OFFSET))) { |
| vendor = imp_data[cpu_arch->imp_num - IMP_DATA_START_OFFSET]; |
| } |
| |
| if ((cpu_arch->arch_num) > 0 && |
| (cpu_arch->arch_num < arch_data_length)) { |
| architecture = arch_data[cpu_arch->arch_num]; |
| } |
| |
| printf("cpu%d: vendor=%s, architecture=ARM%s, part number=%x, " |
| "variant=%x, revision=%x\n", |
| m->id, vendor, architecture, cpu_arch->prim_part_num, |
| cpu_arch->variant_num, cpu_arch->rev_num); |
| } |
| |
| /** @} |
| */ |