1 /* 2 * Copyright (C) 2007 3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4 * 5 * Author: Sergei Poselenov <sposelenov@emcraft.com> 6 * 7 * See file CREDITS for list of people who contributed to this 8 * project. 9 * 10 * This program is free software; you can redistribute it and/or 11 * modify it under the terms of the GNU General Public License as 12 * published by the Free Software Foundation; either version 2 of 13 * the License, or (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 23 * MA 02111-1307 USA 24 */ 25 26 #include <common.h> 27 28 /* 29 * FPU test 30 * 31 * This test checks the arithmetic logic unit (ALU) of CPU. 32 * It tests independently various groups of instructions using 33 * run-time modification of the code to reduce the memory footprint. 34 * For more details refer to post/cpu/ *.c files. 35 */ 36 37 #include <post.h> 38 39 GNU_FPOST_ATTR 40 41 #if CONFIG_POST & CONFIG_SYS_POST_FPU 42 43 #include <watchdog.h> 44 45 extern int fpu_status (void); 46 extern void fpu_enable (void); 47 extern void fpu_disable (void); 48 49 extern int fpu_post_test_math1 (void); 50 extern int fpu_post_test_math2 (void); 51 extern int fpu_post_test_math3 (void); 52 extern int fpu_post_test_math4 (void); 53 extern int fpu_post_test_math5 (void); 54 extern int fpu_post_test_math6 (void); 55 extern int fpu_post_test_math7 (void); 56 57 int fpu_post_test (int flags) 58 { 59 int fpu = fpu_status (); 60 61 int ret = 0; 62 63 WATCHDOG_RESET (); 64 65 if (!fpu) 66 fpu_enable (); 67 68 if (ret == 0) 69 ret = fpu_post_test_math1 (); 70 if (ret == 0) 71 ret = fpu_post_test_math2 (); 72 if (ret == 0) 73 ret = fpu_post_test_math3 (); 74 if (ret == 0) 75 ret = fpu_post_test_math4 (); 76 if (ret == 0) 77 ret = fpu_post_test_math5 (); 78 if (ret == 0) 79 ret = fpu_post_test_math6 (); 80 if (ret == 0) 81 ret = fpu_post_test_math7 (); 82 83 if (!fpu) 84 fpu_disable (); 85 86 WATCHDOG_RESET (); 87 88 return ret; 89 } 90 91 #endif /* CONFIG_POST & CONFIG_SYS_POST_FPU */ 92