post/cache.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 /* Cache test
  27  *
  28  * This test verifies the CPU data and instruction cache using
  29  * several test scenarios.
  30  */
  31
  32 #ifdef CONFIG_POST
  33
  34 #include <post.h>
  35 #include <watchdog.h>
  36
  37 #if CONFIG_POST & CFG_POST_CACHE
  38
  39 #define CACHE_POST_SIZE 1024
  40
  41 extern int cache_post_test1 (char *, unsigned int);
  42 extern int cache_post_test2 (char *, unsigned int);
  43 extern int cache_post_test3 (char *, unsigned int);
  44 extern int cache_post_test4 (char *, unsigned int);
  45 extern int cache_post_test5 (void);
  46 extern int cache_post_test6 (void);
  47
  48 int cache_post_test (int flags)
  49 {
  50         int ints = disable_interrupts ();
  51         int res = 0;
  52         static char ta[CACHE_POST_SIZE + 0xf];
  53         char *testarea = (char *) (((unsigned long) ta + 0xf) & ~0xf);
  54
  55         WATCHDOG_RESET ();
  56         if (res == 0)
  57                 res = cache_post_test1 (testarea, CACHE_POST_SIZE);
  58         WATCHDOG_RESET ();
  59         if (res == 0)
  60                 res = cache_post_test2 (testarea, CACHE_POST_SIZE);
  61         WATCHDOG_RESET ();
  62         if (res == 0)
  63                 res = cache_post_test3 (testarea, CACHE_POST_SIZE);
  64         WATCHDOG_RESET ();
  65         if (res == 0)
  66                 res = cache_post_test4 (testarea, CACHE_POST_SIZE);
  67         WATCHDOG_RESET ();
  68         if (res == 0)
  69                 res = cache_post_test5 ();
  70         WATCHDOG_RESET ();
  71         if (res == 0)
  72                 res = cache_post_test6 ();
  73
  74         WATCHDOG_RESET ();
  75         if (ints)
  76                 enable_interrupts ();
  77         return res;
  78 }
  79
  80 #endif /* CONFIG_POST & CFG_POST_CACHE */
  81 #endif /* CONFIG_POST */