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wdenk 22 years ago
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commit 07c0487586
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  1. 81
      post/cache.c
  2. 55
      post/i2c.c
  3. 183
      post/rtc.c
  4. 152
      post/spr.c
  5. 78
      post/watchdog.c

81
post/cache.c
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/*
* (C) Copyright 2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
/* Cache test
*
* This test verifies the CPU data and instruction cache using
* several test scenarios.
*/
#ifdef CONFIG_POST
#include <post.h>
#include <watchdog.h>
#if CONFIG_POST & CFG_POST_CACHE
#define CACHE_POST_SIZE 1024
extern int cache_post_test1 (char *, unsigned int);
extern int cache_post_test2 (char *, unsigned int);
extern int cache_post_test3 (char *, unsigned int);
extern int cache_post_test4 (char *, unsigned int);
extern int cache_post_test5 (void);
extern int cache_post_test6 (void);
int cache_post_test (int flags)
{
int ints = disable_interrupts ();
int res = 0;
static char ta[CACHE_POST_SIZE + 0xf];
char *testarea = (char *) (((unsigned long) ta + 0xf) & ~0xf);
WATCHDOG_RESET ();
if (res == 0)
res = cache_post_test1 (testarea, CACHE_POST_SIZE);
WATCHDOG_RESET ();
if (res == 0)
res = cache_post_test2 (testarea, CACHE_POST_SIZE);
WATCHDOG_RESET ();
if (res == 0)
res = cache_post_test3 (testarea, CACHE_POST_SIZE);
WATCHDOG_RESET ();
if (res == 0)
res = cache_post_test4 (testarea, CACHE_POST_SIZE);
WATCHDOG_RESET ();
if (res == 0)
res = cache_post_test5 ();
WATCHDOG_RESET ();
if (res == 0)
res = cache_post_test6 ();
WATCHDOG_RESET ();
if (ints)
enable_interrupts ();
return res;
}
#endif /* CONFIG_POST & CFG_POST_CACHE */
#endif /* CONFIG_POST */

55
post/i2c.c
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/*
* (C) Copyright 2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#ifdef CONFIG_POST
/*
* I2C test
*
* For verifying the I2C bus, a full I2C bus scanning is performed.
* If any I2C device is found, the test is considered as passed,
* otherwise failed.
*/
#include <post.h>
#include <i2c.h>
#if CONFIG_POST & CFG_POST_I2C
int i2c_post_test (int flags)
{
unsigned int i;
unsigned int chips = 0;
for (i = 0; i < 128; i++) {
if (i2c_probe (i) == 0)
chips++;
}
return chips > 0 ? 0 : -1;
}
#endif /* CONFIG_POST & CFG_POST_I2C */
#endif /* CONFIG_POST */

183
post/rtc.c
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/*
* (C) Copyright 2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
/*
* RTC test
*
* The Real Time Clock (RTC) operation is verified by this test.
* The following features are verified:
* o) Time uniformity
* This is verified by reading RTC in polling within
* a short period of time.
* o) Passing month boundaries
* This is checked by setting RTC to a second before
* a month boundary and reading it after its passing the
* boundary. The test is performed for both leap- and
* nonleap-years.
*/
#ifdef CONFIG_POST
#include <post.h>
#include <rtc.h>
#if CONFIG_POST & CFG_POST_RTC
static int rtc_post_skip (ulong * diff)
{
struct rtc_time tm1;
struct rtc_time tm2;
ulong start1;
ulong start2;
rtc_get (&tm1);
start1 = get_timer (0);
while (1) {
rtc_get (&tm2);
start2 = get_timer (0);
if (tm1.tm_sec != tm2.tm_sec)
break;
if (start2 - start1 > 1500)
break;
}
if (tm1.tm_sec != tm2.tm_sec) {
*diff = start2 - start1;
return 0;
} else {
return -1;
}
}
static void rtc_post_restore (struct rtc_time *tm, unsigned int sec)
{
time_t t = mktime (tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_hour,
tm->tm_min, tm->tm_sec) + sec;
struct rtc_time ntm;
to_tm (t, &ntm);
rtc_set (&ntm);
}
int rtc_post_test (int flags)
{
ulong diff;
unsigned int i;
struct rtc_time svtm;
static unsigned int daysnl[] =
{ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
static unsigned int daysl[] =
{ 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
unsigned int ynl = 1999;
unsigned int yl = 2000;
unsigned int skipped = 0;
/* Time uniformity */
if (rtc_post_skip (&diff) != 0) {
post_log ("Timeout while waiting for a new second !\n");
return -1;
}
for (i = 0; i < 5; i++) {
if (rtc_post_skip (&diff) != 0) {
post_log ("Timeout while waiting for a new second !\n");
return -1;
}
if (diff < 950 || diff > 1050) {
post_log ("Invalid second duration !\n");
return -1;
}
}
/* Passing month boundaries */
if (rtc_post_skip (&diff) != 0) {
post_log ("Timeout while waiting for a new second !\n");
return -1;
}
rtc_get (&svtm);
for (i = 0; i < 12; i++) {
time_t t = mktime (ynl, i + 1, daysnl[i], 23, 59, 59);
struct rtc_time tm;
to_tm (t, &tm);
rtc_set (&tm);
skipped++;
if (rtc_post_skip (&diff) != 0) {
rtc_post_restore (&svtm, skipped);
post_log ("Timeout while waiting for a new second !\n");
return -1;
}
rtc_get (&tm);
if (tm.tm_mon == i + 1) {
rtc_post_restore (&svtm, skipped);
post_log ("Month %d boundary is not passed !\n", i + 1);
return -1;
}
}
for (i = 0; i < 12; i++) {
time_t t = mktime (yl, i + 1, daysl[i], 23, 59, 59);
struct rtc_time tm;
to_tm (t, &tm);
rtc_set (&tm);
skipped++;
if (rtc_post_skip (&diff) != 0) {
rtc_post_restore (&svtm, skipped);
post_log ("Timeout while waiting for a new second !\n");
return -1;
}
rtc_get (&tm);
if (tm.tm_mon == i + 1) {
rtc_post_restore (&svtm, skipped);
post_log ("Month %d boundary is not passed !\n", i + 1);
return -1;
}
}
rtc_post_restore (&svtm, skipped);
return 0;
}
#endif /* CONFIG_POST & CFG_POST_RTC */
#endif /* CONFIG_POST */

152
post/spr.c
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/*
* (C) Copyright 2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
/*
* SPR test
*
* The test checks the contents of Special Purpose Registers (SPR) listed
* in the spr_test_list array below.
* Each SPR value is read using mfspr instruction, some bits are masked
* according to the table and the resulting value is compared to the
* corresponding table value.
*/
#ifdef CONFIG_POST
#include <post.h>
#if CONFIG_POST & CFG_POST_SPR
static struct
{
int number;
char * name;
unsigned long mask;
unsigned long value;
} spr_test_list [] = {
/* Standard Special-Purpose Registers */
{1, "XER", 0x00000000, 0x00000000},
{8, "LR", 0x00000000, 0x00000000},
{9, "CTR", 0x00000000, 0x00000000},
{18, "DSISR", 0x00000000, 0x00000000},
{19, "DAR", 0x00000000, 0x00000000},
{22, "DEC", 0x00000000, 0x00000000},
{26, "SRR0", 0x00000000, 0x00000000},
{27, "SRR1", 0x00000000, 0x00000000},
{272, "SPRG0", 0x00000000, 0x00000000},
{273, "SPRG1", 0x00000000, 0x00000000},
{274, "SPRG2", 0x00000000, 0x00000000},
{275, "SPRG3", 0x00000000, 0x00000000},
{287, "PVR", 0xFFFF0000, 0x00500000},
/* Additional Special-Purpose Registers */
{144, "CMPA", 0x00000000, 0x00000000},
{145, "CMPB", 0x00000000, 0x00000000},
{146, "CMPC", 0x00000000, 0x00000000},
{147, "CMPD", 0x00000000, 0x00000000},
{148, "ICR", 0xFFFFFFFF, 0x00000000},
{149, "DER", 0x00000000, 0x00000000},
{150, "COUNTA", 0xFFFFFFFF, 0x00000000},
{151, "COUNTB", 0xFFFFFFFF, 0x00000000},
{152, "CMPE", 0x00000000, 0x00000000},
{153, "CMPF", 0x00000000, 0x00000000},
{154, "CMPG", 0x00000000, 0x00000000},
{155, "CMPH", 0x00000000, 0x00000000},
{156, "LCTRL1", 0xFFFFFFFF, 0x00000000},
{157, "LCTRL2", 0xFFFFFFFF, 0x00000000},
{158, "ICTRL", 0xFFFFFFFF, 0x00000007},
{159, "BAR", 0x00000000, 0x00000000},
{630, "DPDR", 0x00000000, 0x00000000},
{631, "DPIR", 0x00000000, 0x00000000},
{638, "IMMR", 0xFFFF0000, CFG_IMMR },
{560, "IC_CST", 0x8E380000, 0x00000000},
{561, "IC_ADR", 0x00000000, 0x00000000},
{562, "IC_DAT", 0x00000000, 0x00000000},
{568, "DC_CST", 0xEF380000, 0x00000000},
{569, "DC_ADR", 0x00000000, 0x00000000},
{570, "DC_DAT", 0x00000000, 0x00000000},
{784, "MI_CTR", 0xFFFFFFFF, 0x00000000},
{786, "MI_AP", 0x00000000, 0x00000000},
{787, "MI_EPN", 0x00000000, 0x00000000},
{789, "MI_TWC", 0xFFFFFE02, 0x00000000},
{790, "MI_RPN", 0x00000000, 0x00000000},
{816, "MI_DBCAM", 0x00000000, 0x00000000},
{817, "MI_DBRAM0", 0x00000000, 0x00000000},
{818, "MI_DBRAM1", 0x00000000, 0x00000000},
{792, "MD_CTR", 0xFFFFFFFF, 0x04000000},
{793, "M_CASID", 0xFFFFFFF0, 0x00000000},
{794, "MD_AP", 0x00000000, 0x00000000},
{795, "MD_EPN", 0x00000000, 0x00000000},
{796, "M_TWB", 0x00000003, 0x00000000},
{797, "MD_TWC", 0x00000003, 0x00000000},
{798, "MD_RPN", 0x00000000, 0x00000000},
{799, "M_TW", 0x00000000, 0x00000000},
{824, "MD_DBCAM", 0x00000000, 0x00000000},
{825, "MD_DBRAM0", 0x00000000, 0x00000000},
{826, "MD_DBRAM1", 0x00000000, 0x00000000},
};
static int spr_test_list_size =
sizeof (spr_test_list) / sizeof (spr_test_list[0]);
int spr_post_test (int flags)
{
int ret = 0;
int ic = icache_status ();
int i;
unsigned long code[] = {
0x7c6002a6, /* mfspr r3,SPR */
0x4e800020 /* blr */
};
unsigned long (*get_spr) (void) = (void *) code;
if (ic)
icache_disable ();
for (i = 0; i < spr_test_list_size; i++) {
int num = spr_test_list[i].number;
/* mfspr r3,num */
code[0] = 0x7c6002a6 | ((num & 0x1F) << 16) | ((num & 0x3E0) << 6);
if ((get_spr () & spr_test_list[i].mask) !=
(spr_test_list[i].value & spr_test_list[i].mask)) {
post_log ("The value of %s special register "
"is incorrect: 0x%08X\n",
spr_test_list[i].name, get_spr ());
ret = -1;
}
}
if (ic)
icache_enable ();
return ret;
}
#endif /* CONFIG_POST & CFG_POST_SPR */
#endif /* CONFIG_POST */

78
post/watchdog.c
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/*
* (C) Copyright 2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
/*
* Watchdog test
*
* The test verifies the watchdog timer operation.
* On the first iteration, the test routine disables interrupts and
* makes a 10-second delay. If the system does not reboot during this delay,
* the watchdog timer is not operational and the test fails. If the system
* reboots, on the second iteration the test routine reports a success.
*/
#ifdef CONFIG_POST
#include <post.h>
#include <watchdog.h>
#if CONFIG_POST & CFG_POST_WATCHDOG
static ulong gettbl (void)
{
ulong r;
asm ("mftbl %0":"=r" (r));
return r;
}
int watchdog_post_test (int flags)
{
if (flags & POST_REBOOT) {
/* Test passed */
return 0;
} else {
/* 10-second delay */
int ints = disable_interrupts ();
ulong base = gettbl ();
ulong clk = get_tbclk ();
while ((gettbl () - base) / 10 < clk);
if (ints)
enable_interrupts ();
/*
* If we have reached this point, the watchdog timer
* does not work
*/
return -1;
}
}
#endif /* CONFIG_POST & CFG_POST_WATCHDOG */
#endif /* CONFIG_POST */
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