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rename CFG_ macros to CONFIG_SYS
[people/ms/u-boot.git] / post / lib_ppc / cpu.c
1 /*
2 * (C) Copyright 2002
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24 #include <common.h>
25
26 /*
27 * CPU test
28 *
29 * This test checks the arithmetic logic unit (ALU) of CPU.
30 * It tests independently various groups of instructions using
31 * run-time modification of the code to reduce the memory footprint.
32 * For more details refer to post/cpu/ *.c files.
33 */
34
35 #include <watchdog.h>
36 #include <post.h>
37 #include <asm/mmu.h>
38
39 #if CONFIG_POST & CONFIG_SYS_POST_CPU
40
41 extern int cpu_post_test_cmp (void);
42 extern int cpu_post_test_cmpi (void);
43 extern int cpu_post_test_two (void);
44 extern int cpu_post_test_twox (void);
45 extern int cpu_post_test_three (void);
46 extern int cpu_post_test_threex (void);
47 extern int cpu_post_test_threei (void);
48 extern int cpu_post_test_andi (void);
49 extern int cpu_post_test_srawi (void);
50 extern int cpu_post_test_rlwnm (void);
51 extern int cpu_post_test_rlwinm (void);
52 extern int cpu_post_test_rlwimi (void);
53 extern int cpu_post_test_store (void);
54 extern int cpu_post_test_load (void);
55 extern int cpu_post_test_cr (void);
56 extern int cpu_post_test_b (void);
57 extern int cpu_post_test_multi (void);
58 extern int cpu_post_test_string (void);
59 extern int cpu_post_test_complex (void);
60
61 DECLARE_GLOBAL_DATA_PTR;
62
63 ulong cpu_post_makecr (long v)
64 {
65 ulong cr = 0;
66
67 if (v < 0)
68 cr |= 0x80000000;
69 if (v > 0)
70 cr |= 0x40000000;
71 if (v == 0)
72 cr |= 0x20000000;
73
74 return cr;
75 }
76
77 int cpu_post_test (int flags)
78 {
79 int ic = icache_status ();
80 int ret = 0;
81
82 WATCHDOG_RESET();
83 if (ic)
84 icache_disable ();
85 #ifdef CONFIG_4xx_DCACHE
86 /* disable cache */
87 change_tlb(gd->bd->bi_memstart, gd->bd->bi_memsize, TLB_WORD2_I_ENABLE);
88 #endif
89
90 if (ret == 0)
91 ret = cpu_post_test_cmp ();
92 if (ret == 0)
93 ret = cpu_post_test_cmpi ();
94 if (ret == 0)
95 ret = cpu_post_test_two ();
96 if (ret == 0)
97 ret = cpu_post_test_twox ();
98 WATCHDOG_RESET();
99 if (ret == 0)
100 ret = cpu_post_test_three ();
101 if (ret == 0)
102 ret = cpu_post_test_threex ();
103 if (ret == 0)
104 ret = cpu_post_test_threei ();
105 if (ret == 0)
106 ret = cpu_post_test_andi ();
107 WATCHDOG_RESET();
108 if (ret == 0)
109 ret = cpu_post_test_srawi ();
110 if (ret == 0)
111 ret = cpu_post_test_rlwnm ();
112 if (ret == 0)
113 ret = cpu_post_test_rlwinm ();
114 if (ret == 0)
115 ret = cpu_post_test_rlwimi ();
116 WATCHDOG_RESET();
117 if (ret == 0)
118 ret = cpu_post_test_store ();
119 if (ret == 0)
120 ret = cpu_post_test_load ();
121 if (ret == 0)
122 ret = cpu_post_test_cr ();
123 if (ret == 0)
124 ret = cpu_post_test_b ();
125 WATCHDOG_RESET();
126 if (ret == 0)
127 ret = cpu_post_test_multi ();
128 WATCHDOG_RESET();
129 if (ret == 0)
130 ret = cpu_post_test_string ();
131 if (ret == 0)
132 ret = cpu_post_test_complex ();
133 WATCHDOG_RESET();
134
135 if (ic)
136 icache_enable ();
137 #ifdef CONFIG_4xx_DCACHE
138 /* enable cache */
139 change_tlb(gd->bd->bi_memstart, gd->bd->bi_memsize, 0);
140 #endif
141
142 WATCHDOG_RESET();
143
144 return ret;
145 }
146
147 #endif /* CONFIG_POST & CONFIG_SYS_POST_CPU */