LXR uboot/post/cpu/mpc8xx/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#include <post.h>
  33#include <watchdog.h>
  34
  35#if CONFIG_POST & CONFIG_SYS_POST_CACHE
  36
  37#define CACHE_POST_SIZE 1024
  38
  39extern int cache_post_test1 (char *, unsigned int);
  40extern int cache_post_test2 (char *, unsigned int);
  41extern int cache_post_test3 (char *, unsigned int);
  42extern int cache_post_test4 (char *, unsigned int);
  43extern int cache_post_test5 (void);
  44extern int cache_post_test6 (void);
  45
  46int cache_post_test (int flags)
  47{
  48        int ints = disable_interrupts ();
  49        int res = 0;
  50        static char ta[CACHE_POST_SIZE + 0xf];
  51        char *testarea = (char *) (((unsigned long) ta + 0xf) & ~0xf);
  52
  53        WATCHDOG_RESET ();
  54        if (res == 0)
  55                res = cache_post_test1 (testarea, CACHE_POST_SIZE);
  56        WATCHDOG_RESET ();
  57        if (res == 0)
  58                res = cache_post_test2 (testarea, CACHE_POST_SIZE);
  59        WATCHDOG_RESET ();
  60        if (res == 0)
  61                res = cache_post_test3 (testarea, CACHE_POST_SIZE);
  62        WATCHDOG_RESET ();
  63        if (res == 0)
  64                res = cache_post_test4 (testarea, CACHE_POST_SIZE);
  65        WATCHDOG_RESET ();
  66        if (res == 0)
  67                res = cache_post_test5 ();
  68        WATCHDOG_RESET ();
  69        if (res == 0)
  70                res = cache_post_test6 ();
  71
  72        WATCHDOG_RESET ();
  73        if (ints)
  74                enable_interrupts ();
  75        return res;
  76}
  77
  78#endif /* CONFIG_POST & CONFIG_SYS_POST_CACHE */
  79