1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Copyright (C) 2007 3*4882a593Smuzhiyun * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Author: Sergei Poselenov <sposelenov@emcraft.com> 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 8*4882a593Smuzhiyun */ 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #include <common.h> 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun /* 13*4882a593Smuzhiyun * FPU test 14*4882a593Smuzhiyun * 15*4882a593Smuzhiyun * This test checks the arithmetic logic unit (ALU) of CPU. 16*4882a593Smuzhiyun * It tests independently various groups of instructions using 17*4882a593Smuzhiyun * run-time modification of the code to reduce the memory footprint. 18*4882a593Smuzhiyun * For more details refer to post/cpu/ *.c files. 19*4882a593Smuzhiyun */ 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun #include <post.h> 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun GNU_FPOST_ATTR 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun #if CONFIG_POST & CONFIG_SYS_POST_FPU 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun #include <watchdog.h> 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun extern int fpu_status (void); 30*4882a593Smuzhiyun extern void fpu_enable (void); 31*4882a593Smuzhiyun extern void fpu_disable (void); 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun extern int fpu_post_test_math1 (void); 34*4882a593Smuzhiyun extern int fpu_post_test_math2 (void); 35*4882a593Smuzhiyun extern int fpu_post_test_math3 (void); 36*4882a593Smuzhiyun extern int fpu_post_test_math4 (void); 37*4882a593Smuzhiyun extern int fpu_post_test_math5 (void); 38*4882a593Smuzhiyun extern int fpu_post_test_math6 (void); 39*4882a593Smuzhiyun extern int fpu_post_test_math7 (void); 40*4882a593Smuzhiyun fpu_post_test(int flags)41*4882a593Smuzhiyunint fpu_post_test (int flags) 42*4882a593Smuzhiyun { 43*4882a593Smuzhiyun int fpu = fpu_status (); 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun int ret = 0; 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun WATCHDOG_RESET (); 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun if (!fpu) 50*4882a593Smuzhiyun fpu_enable (); 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun if (ret == 0) 53*4882a593Smuzhiyun ret = fpu_post_test_math1 (); 54*4882a593Smuzhiyun if (ret == 0) 55*4882a593Smuzhiyun ret = fpu_post_test_math2 (); 56*4882a593Smuzhiyun if (ret == 0) 57*4882a593Smuzhiyun ret = fpu_post_test_math3 (); 58*4882a593Smuzhiyun if (ret == 0) 59*4882a593Smuzhiyun ret = fpu_post_test_math4 (); 60*4882a593Smuzhiyun if (ret == 0) 61*4882a593Smuzhiyun ret = fpu_post_test_math5 (); 62*4882a593Smuzhiyun if (ret == 0) 63*4882a593Smuzhiyun ret = fpu_post_test_math6 (); 64*4882a593Smuzhiyun if (ret == 0) 65*4882a593Smuzhiyun ret = fpu_post_test_math7 (); 66*4882a593Smuzhiyun 67*4882a593Smuzhiyun if (!fpu) 68*4882a593Smuzhiyun fpu_disable (); 69*4882a593Smuzhiyun 70*4882a593Smuzhiyun WATCHDOG_RESET (); 71*4882a593Smuzhiyun 72*4882a593Smuzhiyun return ret; 73*4882a593Smuzhiyun } 74*4882a593Smuzhiyun 75*4882a593Smuzhiyun #endif /* CONFIG_POST & CONFIG_SYS_POST_FPU */ 76