1*a47a12beSStefan Roese /* 2*a47a12beSStefan Roese * Copyright (C) 2007 3*a47a12beSStefan Roese * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4*a47a12beSStefan Roese * 5*a47a12beSStefan Roese * Author: Sergei Poselenov <sposelenov@emcraft.com> 6*a47a12beSStefan Roese * 7*a47a12beSStefan Roese * See file CREDITS for list of people who contributed to this 8*a47a12beSStefan Roese * project. 9*a47a12beSStefan Roese * 10*a47a12beSStefan Roese * This program is free software; you can redistribute it and/or 11*a47a12beSStefan Roese * modify it under the terms of the GNU General Public License as 12*a47a12beSStefan Roese * published by the Free Software Foundation; either version 2 of 13*a47a12beSStefan Roese * the License, or (at your option) any later version. 14*a47a12beSStefan Roese * 15*a47a12beSStefan Roese * This program is distributed in the hope that it will be useful, 16*a47a12beSStefan Roese * but WITHOUT ANY WARRANTY; without even the implied warranty of 17*a47a12beSStefan Roese * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18*a47a12beSStefan Roese * GNU General Public License for more details. 19*a47a12beSStefan Roese * 20*a47a12beSStefan Roese * You should have received a copy of the GNU General Public License 21*a47a12beSStefan Roese * along with this program; if not, write to the Free Software 22*a47a12beSStefan Roese * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 23*a47a12beSStefan Roese * MA 02111-1307 USA 24*a47a12beSStefan Roese */ 25*a47a12beSStefan Roese 26*a47a12beSStefan Roese #include <common.h> 27*a47a12beSStefan Roese 28*a47a12beSStefan Roese /* 29*a47a12beSStefan Roese * FPU test 30*a47a12beSStefan Roese * 31*a47a12beSStefan Roese * This test checks the arithmetic logic unit (ALU) of CPU. 32*a47a12beSStefan Roese * It tests independently various groups of instructions using 33*a47a12beSStefan Roese * run-time modification of the code to reduce the memory footprint. 34*a47a12beSStefan Roese * For more details refer to post/cpu/ *.c files. 35*a47a12beSStefan Roese */ 36*a47a12beSStefan Roese 37*a47a12beSStefan Roese #include <post.h> 38*a47a12beSStefan Roese 39*a47a12beSStefan Roese #if CONFIG_POST & CONFIG_SYS_POST_FPU 40*a47a12beSStefan Roese 41*a47a12beSStefan Roese #include <watchdog.h> 42*a47a12beSStefan Roese 43*a47a12beSStefan Roese GNU_FPOST_ATTR 44*a47a12beSStefan Roese 45*a47a12beSStefan Roese extern int fpu_status (void); 46*a47a12beSStefan Roese extern void fpu_enable (void); 47*a47a12beSStefan Roese extern void fpu_disable (void); 48*a47a12beSStefan Roese 49*a47a12beSStefan Roese extern int fpu_post_test_math1 (void); 50*a47a12beSStefan Roese extern int fpu_post_test_math2 (void); 51*a47a12beSStefan Roese extern int fpu_post_test_math3 (void); 52*a47a12beSStefan Roese extern int fpu_post_test_math4 (void); 53*a47a12beSStefan Roese extern int fpu_post_test_math5 (void); 54*a47a12beSStefan Roese extern int fpu_post_test_math6 (void); 55*a47a12beSStefan Roese extern int fpu_post_test_math7 (void); 56*a47a12beSStefan Roese 57*a47a12beSStefan Roese int fpu_post_test (int flags) 58*a47a12beSStefan Roese { 59*a47a12beSStefan Roese int fpu = fpu_status (); 60*a47a12beSStefan Roese 61*a47a12beSStefan Roese int ret = 0; 62*a47a12beSStefan Roese 63*a47a12beSStefan Roese WATCHDOG_RESET (); 64*a47a12beSStefan Roese 65*a47a12beSStefan Roese if (!fpu) 66*a47a12beSStefan Roese fpu_enable (); 67*a47a12beSStefan Roese 68*a47a12beSStefan Roese if (ret == 0) 69*a47a12beSStefan Roese ret = fpu_post_test_math1 (); 70*a47a12beSStefan Roese if (ret == 0) 71*a47a12beSStefan Roese ret = fpu_post_test_math2 (); 72*a47a12beSStefan Roese if (ret == 0) 73*a47a12beSStefan Roese ret = fpu_post_test_math3 (); 74*a47a12beSStefan Roese if (ret == 0) 75*a47a12beSStefan Roese ret = fpu_post_test_math4 (); 76*a47a12beSStefan Roese if (ret == 0) 77*a47a12beSStefan Roese ret = fpu_post_test_math5 (); 78*a47a12beSStefan Roese if (ret == 0) 79*a47a12beSStefan Roese ret = fpu_post_test_math6 (); 80*a47a12beSStefan Roese if (ret == 0) 81*a47a12beSStefan Roese ret = fpu_post_test_math7 (); 82*a47a12beSStefan Roese 83*a47a12beSStefan Roese if (!fpu) 84*a47a12beSStefan Roese fpu_disable (); 85*a47a12beSStefan Roese 86*a47a12beSStefan Roese WATCHDOG_RESET (); 87*a47a12beSStefan Roese 88*a47a12beSStefan Roese return ret; 89*a47a12beSStefan Roese } 90*a47a12beSStefan Roese 91*a47a12beSStefan Roese #endif /* CONFIG_POST & CONFIG_SYS_POST_FPU */ 92