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git01.mediatek.com / filogic / uboot / 10e4779db8ae6c2784392fa7a1f690645918662d / . / post / lib_powerpc / fpu / fpu.c
blob: 0de76ce0514f7dca7b2626a6957cca73acebaf55 [file] [log] [blame]
Tom Rini10e47792018-05-06 17:58:06 -0400[diff] [blame^]1// SPDX-License-Identifier: GPL-2.0+
Sergei Poselenov3190dbe2007-07-05 08:17:37 +0200[diff] [blame]2/*
3 * Copyright (C) 2007
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 *
6 * Author: Sergei Poselenov <sposelenov@emcraft.com>
Sergei Poselenov3190dbe2007-07-05 08:17:37 +0200[diff] [blame]7 */
8
9#include <common.h>
10
11/*
12 * FPU test
13 *
14 * This test checks the arithmetic logic unit (ALU) of CPU.
15 * It tests independently various groups of instructions using
16 * run-time modification of the code to reduce the memory footprint.
17 * For more details refer to post/cpu/ *.c files.
18 */
19
Sergei Poselenov3190dbe2007-07-05 08:17:37 +0200[diff] [blame]20#include <post.h>
21
Kumar Galafe6555b2011-01-25 03:00:08 -0600[diff] [blame]22GNU_FPOST_ATTR
23
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200[diff] [blame]24#if CONFIG_POST & CONFIG_SYS_POST_FPU
Sergei Poselenov3190dbe2007-07-05 08:17:37 +0200[diff] [blame]25
26#include <watchdog.h>
27
28extern int fpu_status (void);
29extern void fpu_enable (void);
30extern void fpu_disable (void);
31
32extern int fpu_post_test_math1 (void);
33extern int fpu_post_test_math2 (void);
34extern int fpu_post_test_math3 (void);
35extern int fpu_post_test_math4 (void);
36extern int fpu_post_test_math5 (void);
37extern int fpu_post_test_math6 (void);
38extern int fpu_post_test_math7 (void);
39
40int fpu_post_test (int flags)
41{
42 int fpu = fpu_status ();
43
44 int ret = 0;
45
46 WATCHDOG_RESET ();
47
48 if (!fpu)
49 fpu_enable ();
50
51 if (ret == 0)
52 ret = fpu_post_test_math1 ();
53 if (ret == 0)
54 ret = fpu_post_test_math2 ();
55 if (ret == 0)
56 ret = fpu_post_test_math3 ();
57 if (ret == 0)
58 ret = fpu_post_test_math4 ();
59 if (ret == 0)
60 ret = fpu_post_test_math5 ();
61 if (ret == 0)
62 ret = fpu_post_test_math6 ();
63 if (ret == 0)
64 ret = fpu_post_test_math7 ();
65
66 if (!fpu)
67 fpu_disable ();
68
69 WATCHDOG_RESET ();
70
71 return ret;
72}
73
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200[diff] [blame]74#endif /* CONFIG_POST & CONFIG_SYS_POST_FPU */