u-boot/board/mpl/common/memtst.c
Wolfgang Denk cdb749778a Rename getenv_r() into getenv_f()
While running from flash, i. e. before relocation, we have only a
limited C runtime environment without writable data segment. In this
phase, some configurations (for example with environment in EEPROM)
must not use the normal getenv(), but a special function.  This
function had been called getenv_r(), with the idea that the "_r"
suffix would mean the same as in the _r_eentrant versions of some of
the C library functions (for example getdate vs. getdate_r, getgrent
vs. getgrent_r, etc.).

Unfortunately this was a misleading name, as in U-Boot the "_r"
generally means "running from RAM", i. e. _after_ relocation.

To avoid confusion, rename into getenv_f() [as "running from flash"]

Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>
2010-08-04 00:45:36 +02:00

565 lines
14 KiB
C

/*
* (C) Copyright 2001
* Denis Peter, MPL AG Switzerland, d.peter@mpl.ch
*
* 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
*
*/
/* NOT Used yet...
add following code to PIP405.c :
int testdram (void)
{
unsigned char s[32];
int i;
i = getenv_f("testmem", s, 32);
if (i != 0) {
i = (int) simple_strtoul (s, NULL, 10);
if ((i > 0) && (i < 0xf)) {
printf ("testing ");
i = mem_test (0, ramsize, i);
if (i > 0)
printf ("ERROR ");
else
printf ("Ok ");
}
}
return (1);
}
*/
#include <common.h>
#include <asm/processor.h>
#include <4xx_i2c.h>
DECLARE_GLOBAL_DATA_PTR;
#define FALSE 0
#define TRUE 1
#define TEST_QUIET 8
#define TEST_SHOW_PROG 4
#define TEST_SHOW_ERR 2
#define TEST_SHOW_ALL 1
#define TESTPAT1 0xAA55AA55
#define TESTPAT2 0x55AA55AA
#define TEST_PASSED 0
#define TEST_FAILED 1
#define MEGABYTE (1024*1024)
typedef struct {
volatile unsigned long pat1;
volatile unsigned long pat2;
} RAM_MEMTEST_PATTERN2;
typedef struct {
volatile unsigned long addr;
} RAM_MEMTEST_ADDRLINE;
static __inline unsigned long Swap_32 (unsigned long val)
{
return (((val << 16) & 0xFFFF0000) | ((val >> 16) & 0x0000FFFF));
}
void testm_puts (int quiet, char *buf)
{
if ((quiet & TEST_SHOW_ALL) == TEST_SHOW_ALL)
puts (buf);
}
void Write_Error (int mode, unsigned long addr, unsigned long expected,
unsigned long actual)
{
char dispbuf[64];
sprintf (dispbuf, "\n ERROR @ 0x%08lX: (exp: 0x%08lX act: 0x%08lX) ",
addr, expected, actual);
testm_puts (((mode & TEST_SHOW_ERR) ==
TEST_SHOW_ERR) ? TEST_SHOW_ALL : mode, dispbuf);
}
/*
* fills the memblock of <size> bytes from <startaddr> with pat1 and pat2
*/
void RAM_MemTest_WritePattern2 (unsigned long startaddr,
unsigned long size, unsigned long pat1,
unsigned long pat2)
{
RAM_MEMTEST_PATTERN2 *p, *pe;
p = (RAM_MEMTEST_PATTERN2 *) startaddr;
pe = (RAM_MEMTEST_PATTERN2 *) (startaddr + size);
while (p < pe) {
p->pat1 = pat1;
p->pat2 = pat2;
p++;
} /* endwhile */
}
/*
* checks the memblock of <size> bytes from <startaddr> with pat1 and pat2
* returns the address of the first error or NULL if all is well
*/
void *RAM_MemTest_CheckPattern2 (int mode, unsigned long startaddr,
unsigned long size, unsigned long pat1,
unsigned long pat2)
{
RAM_MEMTEST_PATTERN2 *p, *pe;
unsigned long actual1, actual2;
p = (RAM_MEMTEST_PATTERN2 *) startaddr;
pe = (RAM_MEMTEST_PATTERN2 *) (startaddr + size);
while (p < pe) {
actual1 = p->pat1;
actual2 = p->pat2;
if (actual1 != pat1) {
Write_Error (mode, (unsigned long) &(p->pat1), pat1, actual1);
return ((void *) &(p->pat1));
}
/* endif */
if (actual2 != pat2) {
Write_Error (mode, (unsigned long) &(p->pat2), pat2, actual2);
return ((void *) &(p->pat2));
}
/* endif */
p++;
} /* endwhile */
return (NULL);
}
/*
* fills the memblock of <size> bytes from <startaddr> with the address
*/
void RAM_MemTest_WriteAddrLine (unsigned long startaddr,
unsigned long size, int swapped)
{
RAM_MEMTEST_ADDRLINE *p, *pe;
p = (RAM_MEMTEST_ADDRLINE *) startaddr;
pe = (RAM_MEMTEST_ADDRLINE *) (startaddr + size);
if (!swapped) {
while (p < pe) {
p->addr = (unsigned long) p;
p++;
} /* endwhile */
} else {
while (p < pe) {
p->addr = Swap_32 ((unsigned long) p);
p++;
} /* endwhile */
} /* endif */
}
/*
* checks the memblock of <size> bytes from <startaddr>
* returns the address of the error or NULL if all is well
*/
void *RAM_MemTest_CheckAddrLine (int mode, unsigned long startaddr,
unsigned long size, int swapped)
{
RAM_MEMTEST_ADDRLINE *p, *pe;
unsigned long actual, expected;
p = (RAM_MEMTEST_ADDRLINE *) startaddr;
pe = (RAM_MEMTEST_ADDRLINE *) (startaddr + size);
if (!swapped) {
while (p < pe) {
actual = p->addr;
expected = (unsigned long) p;
if (actual != expected) {
Write_Error (mode, (unsigned long) &(p->addr), expected,
actual);
return ((void *) &(p->addr));
} /* endif */
p++;
} /* endwhile */
} else {
while (p < pe) {
actual = p->addr;
expected = Swap_32 ((unsigned long) p);
if (actual != expected) {
Write_Error (mode, (unsigned long) &(p->addr), expected,
actual);
return ((void *) &(p->addr));
} /* endif */
p++;
} /* endwhile */
} /* endif */
return (NULL);
}
/*
* checks the memblock of <size> bytes from <startaddr+size>
* returns the address of the error or NULL if all is well
*/
void *RAM_MemTest_CheckAddrLineReverse (int mode, unsigned long startaddr,
unsigned long size, int swapped)
{
RAM_MEMTEST_ADDRLINE *p, *pe;
unsigned long actual, expected;
p = (RAM_MEMTEST_ADDRLINE *) (startaddr + size - sizeof (p->addr));
pe = (RAM_MEMTEST_ADDRLINE *) startaddr;
if (!swapped) {
while (p > pe) {
actual = p->addr;
expected = (unsigned long) p;
if (actual != expected) {
Write_Error (mode, (unsigned long) &(p->addr), expected,
actual);
return ((void *) &(p->addr));
} /* endif */
p--;
} /* endwhile */
} else {
while (p > pe) {
actual = p->addr;
expected = Swap_32 ((unsigned long) p);
if (actual != expected) {
Write_Error (mode, (unsigned long) &(p->addr), expected,
actual);
return ((void *) &(p->addr));
} /* endif */
p--;
} /* endwhile */
} /* endif */
return (NULL);
}
/*
* fills the memblock of <size> bytes from <startaddr> with walking bit pattern
*/
void RAM_MemTest_WriteWalkBit (unsigned long startaddr, unsigned long size)
{
volatile unsigned long *p, *pe;
unsigned long i;
p = (unsigned long *) startaddr;
pe = (unsigned long *) (startaddr + size);
i = 0;
while (p < pe) {
*p = 1UL << i;
i = (i + 1 + (((unsigned long) p) >> 7)) % 32;
p++;
} /* endwhile */
}
/*
* checks the memblock of <size> bytes from <startaddr>
* returns the address of the error or NULL if all is well
*/
void *RAM_MemTest_CheckWalkBit (int mode, unsigned long startaddr,
unsigned long size)
{
volatile unsigned long *p, *pe;
unsigned long actual, expected;
unsigned long i;
p = (unsigned long *) startaddr;
pe = (unsigned long *) (startaddr + size);
i = 0;
while (p < pe) {
actual = *p;
expected = (1UL << i);
if (actual != expected) {
Write_Error (mode, (unsigned long) p, expected, actual);
return ((void *) p);
} /* endif */
i = (i + 1 + (((unsigned long) p) >> 7)) % 32;
p++;
} /* endwhile */
return (NULL);
}
/*
* fills the memblock of <size> bytes from <startaddr> with "random" pattern
*/
void RAM_MemTest_WriteRandomPattern (unsigned long startaddr,
unsigned long size,
unsigned long *pat)
{
unsigned long i, p;
p = *pat;
for (i = 0; i < (size / 4); i++) {
*(unsigned long *) (startaddr + i * 4) = p;
if ((p % 2) > 0) {
p ^= i;
p >>= 1;
p |= 0x80000000;
} else {
p ^= ~i;
p >>= 1;
} /* endif */
} /* endfor */
*pat = p;
}
/*
* checks the memblock of <size> bytes from <startaddr>
* returns the address of the error or NULL if all is well
*/
void *RAM_MemTest_CheckRandomPattern (int mode, unsigned long startaddr,
unsigned long size,
unsigned long *pat)
{
void *perr = NULL;
unsigned long i, p, p1;
p = *pat;
for (i = 0; i < (size / 4); i++) {
p1 = *(unsigned long *) (startaddr + i * 4);
if (p1 != p) {
if (perr == NULL) {
Write_Error (mode, startaddr + i * 4, p, p1);
perr = (void *) (startaddr + i * 4);
} /* endif */
}
/* endif */
if ((p % 2) > 0) {
p ^= i;
p >>= 1;
p |= 0x80000000;
} else {
p ^= ~i;
p >>= 1;
} /* endif */
} /* endfor */
*pat = p;
return (perr);
}
void RAM_MemTest_WriteData1 (unsigned long startaddr, unsigned long size,
unsigned long *pat)
{
RAM_MemTest_WritePattern2 (startaddr, size, TESTPAT1, TESTPAT2);
}
void *RAM_MemTest_CheckData1 (int mode, unsigned long startaddr,
unsigned long size, unsigned long *pat)
{
return (RAM_MemTest_CheckPattern2
(mode, startaddr, size, TESTPAT1, TESTPAT2));
}
void RAM_MemTest_WriteData2 (unsigned long startaddr, unsigned long size,
unsigned long *pat)
{
RAM_MemTest_WritePattern2 (startaddr, size, TESTPAT2, TESTPAT1);
}
void *RAM_MemTest_CheckData2 (int mode, unsigned long startaddr,
unsigned long size, unsigned long *pat)
{
return (RAM_MemTest_CheckPattern2
(mode, startaddr, size, TESTPAT2, TESTPAT1));
}
void RAM_MemTest_WriteAddr1 (unsigned long startaddr, unsigned long size,
unsigned long *pat)
{
RAM_MemTest_WriteAddrLine (startaddr, size, FALSE);
}
void *RAM_MemTest_Check1Addr1 (int mode, unsigned long startaddr,
unsigned long size, unsigned long *pat)
{
return (RAM_MemTest_CheckAddrLine (mode, startaddr, size, FALSE));
}
void *RAM_MemTest_Check2Addr1 (int mode, unsigned long startaddr,
unsigned long size, unsigned long *pat)
{
return (RAM_MemTest_CheckAddrLineReverse
(mode, startaddr, size, FALSE));
}
void RAM_MemTest_WriteAddr2 (unsigned long startaddr, unsigned long size,
unsigned long *pat)
{
RAM_MemTest_WriteAddrLine (startaddr, size, TRUE);
}
void *RAM_MemTest_Check1Addr2 (int mode, unsigned long startaddr,
unsigned long size, unsigned long *pat)
{
return (RAM_MemTest_CheckAddrLine (mode, startaddr, size, TRUE));
}
void *RAM_MemTest_Check2Addr2 (int mode, unsigned long startaddr,
unsigned long size, unsigned long *pat)
{
return (RAM_MemTest_CheckAddrLineReverse
(mode, startaddr, size, TRUE));
}
typedef struct {
void (*test_write) (unsigned long startaddr, unsigned long size,
unsigned long *pat);
char *test_write_desc;
void *(*test_check1) (int mode, unsigned long startaddr,
unsigned long size, unsigned long *pat);
void *(*test_check2) (int mode, unsigned long startaddr,
unsigned long size, unsigned long *pat);
} RAM_MEMTEST_FUNC;
#define TEST_STAGES 5
static RAM_MEMTEST_FUNC test_stage[TEST_STAGES] = {
{RAM_MemTest_WriteData1, "data test 1...\n", RAM_MemTest_CheckData1,
NULL},
{RAM_MemTest_WriteData2, "data test 2...\n", RAM_MemTest_CheckData2,
NULL},
{RAM_MemTest_WriteAddr1, "address line test...\n",
RAM_MemTest_Check1Addr1, RAM_MemTest_Check2Addr1},
{RAM_MemTest_WriteAddr2, "address line test (swapped)...\n",
RAM_MemTest_Check1Addr2, RAM_MemTest_Check2Addr2},
{RAM_MemTest_WriteRandomPattern, "random data test...\n",
RAM_MemTest_CheckRandomPattern, NULL}
};
int mem_test (unsigned long start, unsigned long ramsize, int quiet)
{
unsigned long errors, stage;
unsigned long startaddr, size, i;
const unsigned long blocksize = 0x80000; /* check in 512KB blocks */
unsigned long *perr;
unsigned long rdatapat;
char dispbuf[80];
int status = TEST_PASSED;
int prog = 0;
errors = 0;
startaddr = start;
size = ramsize;
if ((quiet & TEST_SHOW_PROG) == TEST_SHOW_PROG) {
prog++;
printf (".");
}
sprintf (dispbuf, "\nMemory Test: addr = 0x%lx size = 0x%lx\n",
startaddr, size);
testm_puts (quiet, dispbuf);
for (stage = 0; stage < TEST_STAGES; stage++) {
sprintf (dispbuf, test_stage[stage].test_write_desc);
testm_puts (quiet, dispbuf);
/* fill SDRAM */
rdatapat = 0x12345678;
sprintf (dispbuf, "writing block: ");
testm_puts (quiet, dispbuf);
for (i = 0; i < size; i += blocksize) {
sprintf (dispbuf, "%04lX\b\b\b\b", i / blocksize);
testm_puts (quiet, dispbuf);
test_stage[stage].test_write (startaddr + i, blocksize,
&rdatapat);
} /* endfor */
sprintf (dispbuf, "\n");
testm_puts (quiet, dispbuf);
if ((quiet & TEST_SHOW_PROG) == TEST_SHOW_PROG) {
prog++;
printf (".");
}
/* check SDRAM */
rdatapat = 0x12345678;
sprintf (dispbuf, "checking block: ");
testm_puts (quiet, dispbuf);
for (i = 0; i < size; i += blocksize) {
sprintf (dispbuf, "%04lX\b\b\b\b", i / blocksize);
testm_puts (quiet, dispbuf);
if ((perr =
test_stage[stage].test_check1 (quiet, startaddr + i,
blocksize,
&rdatapat)) != NULL) {
status = TEST_FAILED;
} /* endif */
} /* endfor */
sprintf (dispbuf, "\n");
testm_puts (quiet, dispbuf);
if ((quiet & TEST_SHOW_PROG) == TEST_SHOW_PROG) {
prog++;
printf (".");
}
if (test_stage[stage].test_check2 != NULL) {
/* check2 SDRAM */
sprintf (dispbuf, "2nd checking block: ");
rdatapat = 0x12345678;
testm_puts (quiet, dispbuf);
for (i = 0; i < size; i += blocksize) {
sprintf (dispbuf, "%04lX\b\b\b\b", i / blocksize);
testm_puts (quiet, dispbuf);
if ((perr =
test_stage[stage].test_check2 (quiet, startaddr + i,
blocksize,
&rdatapat)) != NULL) {
status = TEST_FAILED;
} /* endif */
} /* endfor */
sprintf (dispbuf, "\n");
testm_puts (quiet, dispbuf);
if ((quiet & TEST_SHOW_PROG) == TEST_SHOW_PROG) {
prog++;
printf (".");
}
}
} /* next stage */
if ((quiet & TEST_SHOW_PROG) == TEST_SHOW_PROG) {
while (prog-- > 0)
printf ("\b \b");
}
if (status == TEST_FAILED)
errors++;
return (errors);
}