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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 8f0b1e24e2887713bdcbf35b08902e9555ee7b92 / . / post / lib_powerpc / cpu.c
blob: 63a861e4dd4c6dcbc1017c8cab8e350846e01b7f [file] [log] [blame]
Wolfgang Denkad5bb452007-03-06 18:08:43 +0100[diff] [blame]1/*
2 * (C) Copyright 2002
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
Wolfgang Denk1a459662013-07-08 09:37:19 +0200[diff] [blame]5 * SPDX-License-Identifier: GPL-2.0+
Wolfgang Denkad5bb452007-03-06 18:08:43 +0100[diff] [blame]6 */
7
8#include <common.h>
9
10/*
11 * CPU test
12 *
13 * This test checks the arithmetic logic unit (ALU) of CPU.
14 * It tests independently various groups of instructions using
15 * run-time modification of the code to reduce the memory footprint.
16 * For more details refer to post/cpu/ *.c files.
17 */
18
Wolfgang Denkad5bb452007-03-06 18:08:43 +0100[diff] [blame]19#include <watchdog.h>
20#include <post.h>
Stefan Roese3db93b82007-10-31 20:51:10 +0100[diff] [blame]21#include <asm/mmu.h>
Wolfgang Denkad5bb452007-03-06 18:08:43 +0100[diff] [blame]22
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200[diff] [blame]23#if CONFIG_POST & CONFIG_SYS_POST_CPU
Wolfgang Denkad5bb452007-03-06 18:08:43 +0100[diff] [blame]24
25extern int cpu_post_test_cmp (void);
26extern int cpu_post_test_cmpi (void);
27extern int cpu_post_test_two (void);
28extern int cpu_post_test_twox (void);
29extern int cpu_post_test_three (void);
30extern int cpu_post_test_threex (void);
31extern int cpu_post_test_threei (void);
32extern int cpu_post_test_andi (void);
33extern int cpu_post_test_srawi (void);
34extern int cpu_post_test_rlwnm (void);
35extern int cpu_post_test_rlwinm (void);
36extern int cpu_post_test_rlwimi (void);
37extern int cpu_post_test_store (void);
38extern int cpu_post_test_load (void);
39extern int cpu_post_test_cr (void);
40extern int cpu_post_test_b (void);
41extern int cpu_post_test_multi (void);
42extern int cpu_post_test_string (void);
43extern int cpu_post_test_complex (void);
44
Stefan Roese3db93b82007-10-31 20:51:10 +0100[diff] [blame]45DECLARE_GLOBAL_DATA_PTR;
46
Wolfgang Denkad5bb452007-03-06 18:08:43 +0100[diff] [blame]47ulong cpu_post_makecr (long v)
48{
49 ulong cr = 0;
50
51 if (v < 0)
52 cr |= 0x80000000;
53 if (v > 0)
54 cr |= 0x40000000;
55 if (v == 0)
56 cr |= 0x20000000;
57
58 return cr;
59}
60
61int cpu_post_test (int flags)
62{
63 int ic = icache_status ();
64 int ret = 0;
65
66 WATCHDOG_RESET();
67 if (ic)
68 icache_disable ();
Stefan Roese3db93b82007-10-31 20:51:10 +0100[diff] [blame]69#ifdef CONFIG_4xx_DCACHE
70 /* disable cache */
71 change_tlb(gd->bd->bi_memstart, gd->bd->bi_memsize, TLB_WORD2_I_ENABLE);
72#endif
Wolfgang Denkad5bb452007-03-06 18:08:43 +0100[diff] [blame]73
74 if (ret == 0)
75 ret = cpu_post_test_cmp ();
76 if (ret == 0)
77 ret = cpu_post_test_cmpi ();
78 if (ret == 0)
79 ret = cpu_post_test_two ();
80 if (ret == 0)
81 ret = cpu_post_test_twox ();
82 WATCHDOG_RESET();
83 if (ret == 0)
84 ret = cpu_post_test_three ();
85 if (ret == 0)
86 ret = cpu_post_test_threex ();
87 if (ret == 0)
88 ret = cpu_post_test_threei ();
89 if (ret == 0)
90 ret = cpu_post_test_andi ();
91 WATCHDOG_RESET();
92 if (ret == 0)
93 ret = cpu_post_test_srawi ();
94 if (ret == 0)
95 ret = cpu_post_test_rlwnm ();
96 if (ret == 0)
97 ret = cpu_post_test_rlwinm ();
98 if (ret == 0)
99 ret = cpu_post_test_rlwimi ();
100 WATCHDOG_RESET();
101 if (ret == 0)
102 ret = cpu_post_test_store ();
103 if (ret == 0)
104 ret = cpu_post_test_load ();
105 if (ret == 0)
106 ret = cpu_post_test_cr ();
107 if (ret == 0)
108 ret = cpu_post_test_b ();
109 WATCHDOG_RESET();
110 if (ret == 0)
111 ret = cpu_post_test_multi ();
112 WATCHDOG_RESET();
113 if (ret == 0)
114 ret = cpu_post_test_string ();
115 if (ret == 0)
116 ret = cpu_post_test_complex ();
117 WATCHDOG_RESET();
118
119 if (ic)
120 icache_enable ();
Stefan Roese3db93b82007-10-31 20:51:10 +0100[diff] [blame]121#ifdef CONFIG_4xx_DCACHE
122 /* enable cache */
123 change_tlb(gd->bd->bi_memstart, gd->bd->bi_memsize, 0);
124#endif
Wolfgang Denkad5bb452007-03-06 18:08:43 +0100[diff] [blame]125
126 WATCHDOG_RESET();
127
128 return ret;
129}
130
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200[diff] [blame]131#endif /* CONFIG_POST & CONFIG_SYS_POST_CPU */