[u-boot.git] / board / mpl / common / memtst.c

/*
 * (C) Copyright 2001
 * Denis Peter, MPL AG Switzerland, [email protected]
 *
 * 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_r ("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 <405gp_i2c.h>

#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}
};

void mem_test_reloc(void)
{
	DECLARE_GLOBAL_DATA_PTR;
	unsigned long addr;
	int i;
	for (i=0; i< TEST_STAGES; i++) {
 		addr = (ulong) (test_stage[i].test_write) + gd->reloc_off;
		test_stage[i].test_write=
			(void (*) (unsigned long startaddr, unsigned long size,
						unsigned long *pat))addr;
 		addr = (ulong) (test_stage[i].test_write_desc) + gd->reloc_off;
		test_stage[i].test_write_desc=(char *)addr;
 		if(test_stage[i].test_check1) {
			addr = (ulong) (test_stage[i].test_check1) + gd->reloc_off;
			test_stage[i].test_check1=
				(void *(*) (int mode, unsigned long startaddr,
				 unsigned long size, unsigned long *pat))addr;
		}
 		if(test_stage[i].test_check2) {
			addr = (ulong) (test_stage[i].test_check2) + gd->reloc_off;
			test_stage[i].test_check2=
				(void *(*) (int mode, unsigned long startaddr,
				 unsigned long size, unsigned long *pat))addr;
		}
	}
}


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);
}
Commit	Line	Data
67c4f48a WD	1	/*
	2	* (C) Copyright 2001
	3	* Denis Peter, MPL AG Switzerland, [email protected]
	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
	25	/* NOT Used yet...
	26	add following code to PIP405.c :
	27	int testdram (void)
	28	{
	29	unsigned char s[32];
	30	int i;
	31
	32	i = getenv_r ("testmem", s, 32);
	33	if (i != 0) {
	34	i = (int) simple_strtoul (s, NULL, 10);
	35	if ((i > 0) && (i < 0xf)) {
	36	printf ("testing ");
	37	i = mem_test (0, ramsize, i);
	38	if (i > 0)
	39	printf ("ERROR ");
	40	else
	41	printf ("Ok ");
	42	}
	43	}
	44	return (1);
	45	}
	46	*/
	47
	48
	49	#include <common.h>
	50	#include <asm/processor.h>
	51	#include <405gp_i2c.h>
	52
	53	#define FALSE 0
	54	#define TRUE 1
	55
	56	#define TEST_QUIET 8
	57	#define TEST_SHOW_PROG 4
	58	#define TEST_SHOW_ERR 2
	59	#define TEST_SHOW_ALL 1
	60
	61	#define TESTPAT1 0xAA55AA55
	62	#define TESTPAT2 0x55AA55AA
	63	#define TEST_PASSED 0
	64	#define TEST_FAILED 1
65	#define MEGABYTE (1024*1024)
66
67
67c4f48a WD	68	typedef struct {
	69	volatile unsigned long pat1;
	70	volatile unsigned long pat2;
	71	} RAM_MEMTEST_PATTERN2;
	72
	73	typedef struct {
	74	volatile unsigned long addr;
	75	} RAM_MEMTEST_ADDRLINE;
	76
	77	static __inline unsigned long Swap_32 (unsigned long val)
	78	{
	79	return (((val << 16) & 0xFFFF0000) \| ((val >> 16) & 0x0000FFFF));
	80	}
	81
	82	void testm_puts (int quiet, char *buf)
	83	{
	84	if ((quiet & TEST_SHOW_ALL) == TEST_SHOW_ALL)
	85	puts (buf);
	86	}
	87
	88
	89	void Write_Error (int mode, unsigned long addr, unsigned long expected,
	90	unsigned long actual)
	91	{
	92
	93	char dispbuf[64];
	94
	95	sprintf (dispbuf, "\n ERROR @ 0x%08lX: (exp: 0x%08lX act: 0x%08lX) ",
	96	addr, expected, actual);
	97	testm_puts (((mode & TEST_SHOW_ERR) ==
	98	TEST_SHOW_ERR) ? TEST_SHOW_ALL : mode, dispbuf);
	99	}
	100
	101
	102	/*
	103	* fills the memblock of <size> bytes from <startaddr> with pat1 and pat2
	104	*/
	105
	106
	107	void RAM_MemTest_WritePattern2 (unsigned long startaddr,
	108	unsigned long size, unsigned long pat1,
	109	unsigned long pat2)
	110	{
	111	RAM_MEMTEST_PATTERN2 p, pe;
	112
	113	p = (RAM_MEMTEST_PATTERN2 *) startaddr;
	114	pe = (RAM_MEMTEST_PATTERN2 *) (startaddr + size);
	115
	116	while (p < pe) {
	117	p->pat1 = pat1;
	118	p->pat2 = pat2;
	119	p++;
	120	} /* endwhile */
	121	}
	122
	123	/*
	124	* checks the memblock of <size> bytes from <startaddr> with pat1 and pat2
	125	* returns the address of the first error or NULL if all is well
	126	*/
	127
	128	void *RAM_MemTest_CheckPattern2 (int mode, unsigned long startaddr,
	129	unsigned long size, unsigned long pat1,
	130	unsigned long pat2)
	131	{
132	RAM_MEMTEST_PATTERN2 p, pe;
133	unsigned long actual1, actual2;
134
135	p = (RAM_MEMTEST_PATTERN2 *) startaddr;
136	pe = (RAM_MEMTEST_PATTERN2 *) (startaddr + size);
137
138	while (p < pe) {
139	actual1 = p->pat1;
140	actual2 = p->pat2;
141
142	if (actual1 != pat1) {
143	Write_Error (mode, (unsigned long) &(p->pat1), pat1, actual1);
144	return ((void *) &(p->pat1));
145	}
146	/* endif */
147	if (actual2 != pat2) {
148	Write_Error (mode, (unsigned long) &(p->pat2), pat2, actual2);
149	return ((void *) &(p->pat2));
150	}
151	/* endif */
152	p++;
153	} /* endwhile */
154
155	return (NULL);
156	}
157
158	/*
159	* fills the memblock of <size> bytes from <startaddr> with the address
160	*/
161
162	void RAM_MemTest_WriteAddrLine (unsigned long startaddr,
163	unsigned long size, int swapped)
164	{
165	RAM_MEMTEST_ADDRLINE p, pe;
166
167	p = (RAM_MEMTEST_ADDRLINE *) startaddr;
168	pe = (RAM_MEMTEST_ADDRLINE *) (startaddr + size);
169
170	if (!swapped) {
171	while (p < pe) {
172	p->addr = (unsigned long) p;
173	p++;
174	} /* endwhile */
175	} else {
176	while (p < pe) {
177	p->addr = Swap_32 ((unsigned long) p);
178	p++;
179	} /* endwhile */
180	} /* endif */
181	}
182
183	/*
184	* checks the memblock of <size> bytes from <startaddr>
185	* returns the address of the error or NULL if all is well
186	*/
187
188	void *RAM_MemTest_CheckAddrLine (int mode, unsigned long startaddr,
189	unsigned long size, int swapped)
190	{
191	RAM_MEMTEST_ADDRLINE p, pe;
192	unsigned long actual, expected;
193
194	p = (RAM_MEMTEST_ADDRLINE *) startaddr;
195	pe = (RAM_MEMTEST_ADDRLINE *) (startaddr + size);
196
197	if (!swapped) {
198	while (p < pe) {
199	actual = p->addr;
200	expected = (unsigned long) p;
201	if (actual != expected) {
202	Write_Error (mode, (unsigned long) &(p->addr), expected,
203	actual);
204	return ((void *) &(p->addr));
205	} /* endif */
206	p++;
207	} /* endwhile */
208	} else {
209	while (p < pe) {
210	actual = p->addr;
211	expected = Swap_32 ((unsigned long) p);
212	if (actual != expected) {
213	Write_Error (mode, (unsigned long) &(p->addr), expected,
214	actual);
215	return ((void *) &(p->addr));
216	} /* endif */
217	p++;
218	} /* endwhile */
219	} /* endif */
220
221	return (NULL);
222	}
223
224	/*
225	* checks the memblock of <size> bytes from <startaddr+size>
226	* returns the address of the error or NULL if all is well
227	*/
228
229	void *RAM_MemTest_CheckAddrLineReverse (int mode, unsigned long startaddr,
230	unsigned long size, int swapped)
231	{
232	RAM_MEMTEST_ADDRLINE p, pe;
233	unsigned long actual, expected;
234
235	p = (RAM_MEMTEST_ADDRLINE *) (startaddr + size - sizeof (p->addr));
236	pe = (RAM_MEMTEST_ADDRLINE *) startaddr;
237
238	if (!swapped) {
239	while (p > pe) {
240	actual = p->addr;
241	expected = (unsigned long) p;
242	if (actual != expected) {
243	Write_Error (mode, (unsigned long) &(p->addr), expected,
244	actual);
245	return ((void *) &(p->addr));
246	} /* endif */
247	p--;
248	} /* endwhile */
249	} else {
250	while (p > pe) {
251	actual = p->addr;
252	expected = Swap_32 ((unsigned long) p);
253	if (actual != expected) {
254	Write_Error (mode, (unsigned long) &(p->addr), expected,
255	actual);
256	return ((void *) &(p->addr));
257	} /* endif */
258	p--;
259	} /* endwhile */
260	} /* endif */
261
262	return (NULL);
263	}
264
265	/*
266	* fills the memblock of <size> bytes from <startaddr> with walking bit pattern
267	*/
268
269	void RAM_MemTest_WriteWalkBit (unsigned long startaddr, unsigned long size)
270	{
271	volatile unsigned long p, pe;
272	unsigned long i;
273
274	p = (unsigned long *) startaddr;
275	pe = (unsigned long *) (startaddr + size);
276	i = 0;
277
278	while (p < pe) {
279	*p = 1UL << i;
280	i = (i + 1 + (((unsigned long) p) >> 7)) % 32;
281	p++;
282	} /* endwhile */
283	}
284
285	/*
286	* checks the memblock of <size> bytes from <startaddr>
287	* returns the address of the error or NULL if all is well
288	*/
289
290	void *RAM_MemTest_CheckWalkBit (int mode, unsigned long startaddr,
291	unsigned long size)
292	{
293	volatile unsigned long p, pe;
294	unsigned long actual, expected;
295	unsigned long i;
296
297	p = (unsigned long *) startaddr;
298	pe = (unsigned long *) (startaddr + size);
299	i = 0;
300
301	while (p < pe) {
302	actual = *p;
303	expected = (1UL << i);
304	if (actual != expected) {
305	Write_Error (mode, (unsigned long) p, expected, actual);
306	return ((void *) p);
307	} /* endif */
308	i = (i + 1 + (((unsigned long) p) >> 7)) % 32;
309	p++;
310	} /* endwhile */
311
312	return (NULL);
313	}
314
315	/*
316	* fills the memblock of <size> bytes from <startaddr> with "random" pattern
317	*/
318
319	void RAM_MemTest_WriteRandomPattern (unsigned long startaddr,
320	unsigned long size,
321	unsigned long *pat)
322	{
323	unsigned long i, p;
324
325	p = *pat;
326
327	for (i = 0; i < (size / 4); i++) {
328	(unsigned long ) (startaddr + i * 4) = p;
329	if ((p % 2) > 0) {
330	p ^= i;
331	p >>= 1;
332	p \|= 0x80000000;
333	} else {
334	p ^= ~i;
335	p >>= 1;
336	} /* endif */
337	} /* endfor */
338	*pat = p;
339	}
340
341	/*
342	* checks the memblock of <size> bytes from <startaddr>
343	* returns the address of the error or NULL if all is well
344	*/
345
346	void *RAM_MemTest_CheckRandomPattern (int mode, unsigned long startaddr,
347	unsigned long size,
348	unsigned long *pat)
349	{
350	void *perr = NULL;
351	unsigned long i, p, p1;
352
353	p = *pat;
354
355	for (i = 0; i < (size / 4); i++) {
356	p1 = (unsigned long ) (startaddr + i * 4);
357	if (p1 != p) {
358	if (perr == NULL) {
359	Write_Error (mode, startaddr + i * 4, p, p1);
360	perr = (void ) (startaddr + i 4);
361	} /* endif */
362	}
363	/* endif */
364	if ((p % 2) > 0) {
365	p ^= i;
366	p >>= 1;
367	p \|= 0x80000000;
368	} else {
369	p ^= ~i;
370	p >>= 1;
371	} /* endif */
372	} /* endfor */
373
374	*pat = p;
375	return (perr);
376	}
377
378
379	void RAM_MemTest_WriteData1 (unsigned long startaddr, unsigned long size,
380	unsigned long *pat)
381	{
382	RAM_MemTest_WritePattern2 (startaddr, size, TESTPAT1, TESTPAT2);
383	}
384
385	void *RAM_MemTest_CheckData1 (int mode, unsigned long startaddr,
386	unsigned long size, unsigned long *pat)
387	{
388	return (RAM_MemTest_CheckPattern2
389	(mode, startaddr, size, TESTPAT1, TESTPAT2));
390	}
391
392	void RAM_MemTest_WriteData2 (unsigned long startaddr, unsigned long size,
393	unsigned long *pat)
394	{
395	RAM_MemTest_WritePattern2 (startaddr, size, TESTPAT2, TESTPAT1);
396	}
397
398	void *RAM_MemTest_CheckData2 (int mode, unsigned long startaddr,
399	unsigned long size, unsigned long *pat)
400	{
401	return (RAM_MemTest_CheckPattern2
402	(mode, startaddr, size, TESTPAT2, TESTPAT1));
403	}
404
405	void RAM_MemTest_WriteAddr1 (unsigned long startaddr, unsigned long size,
406	unsigned long *pat)
407	{
408	RAM_MemTest_WriteAddrLine (startaddr, size, FALSE);
409	}
410
411	void *RAM_MemTest_Check1Addr1 (int mode, unsigned long startaddr,
412	unsigned long size, unsigned long *pat)
413	{
414	return (RAM_MemTest_CheckAddrLine (mode, startaddr, size, FALSE));
415	}
416
417	void *RAM_MemTest_Check2Addr1 (int mode, unsigned long startaddr,
418	unsigned long size, unsigned long *pat)
419	{
420	return (RAM_MemTest_CheckAddrLineReverse
421	(mode, startaddr, size, FALSE));
422	}
423
424	void RAM_MemTest_WriteAddr2 (unsigned long startaddr, unsigned long size,
425	unsigned long *pat)
426	{
427	RAM_MemTest_WriteAddrLine (startaddr, size, TRUE);
428	}
429
430	void *RAM_MemTest_Check1Addr2 (int mode, unsigned long startaddr,
431	unsigned long size, unsigned long *pat)
432	{
433	return (RAM_MemTest_CheckAddrLine (mode, startaddr, size, TRUE));
434	}
435
436	void *RAM_MemTest_Check2Addr2 (int mode, unsigned long startaddr,
437	unsigned long size, unsigned long *pat)
438	{
439	return (RAM_MemTest_CheckAddrLineReverse
440	(mode, startaddr, size, TRUE));
441	}
442
443
67c4f48a WD	444	typedef struct {
	445	void (*test_write) (unsigned long startaddr, unsigned long size,
	446	unsigned long *pat);
	447	char *test_write_desc;
	448	void (test_check1) (int mode, unsigned long startaddr,
	449	unsigned long size, unsigned long *pat);
	450	void (test_check2) (int mode, unsigned long startaddr,
	451	unsigned long size, unsigned long *pat);
	452	} RAM_MEMTEST_FUNC;
	453
	454
	455	#define TEST_STAGES 5
33149b88	456	static RAM_MEMTEST_FUNC test_stage[TEST_STAGES] = {
67c4f48a WD	457	{RAM_MemTest_WriteData1, "data test 1...\n", RAM_MemTest_CheckData1,
	458	NULL},
	459	{RAM_MemTest_WriteData2, "data test 2...\n", RAM_MemTest_CheckData2,
	460	NULL},
	461	{RAM_MemTest_WriteAddr1, "address line test...\n",
	462	RAM_MemTest_Check1Addr1, RAM_MemTest_Check2Addr1},
	463	{RAM_MemTest_WriteAddr2, "address line test (swapped)...\n",
	464	RAM_MemTest_Check1Addr2, RAM_MemTest_Check2Addr2},
	465	{RAM_MemTest_WriteRandomPattern, "random data test...\n",
	466	RAM_MemTest_CheckRandomPattern, NULL}
	467	};
	468
33149b88 WD	469	void mem_test_reloc(void)
	470	{
	471	DECLARE_GLOBAL_DATA_PTR;
	472	unsigned long addr;
	473	int i;
	474	for (i=0; i< TEST_STAGES; i++) {
	475	addr = (ulong) (test_stage[i].test_write) + gd->reloc_off;
	476	test_stage[i].test_write=
	477	(void (*) (unsigned long startaddr, unsigned long size,
	478	unsigned long *pat))addr;
	479	addr = (ulong) (test_stage[i].test_write_desc) + gd->reloc_off;
	480	test_stage[i].test_write_desc=(char *)addr;
	481	if(test_stage[i].test_check1) {
	482	addr = (ulong) (test_stage[i].test_check1) + gd->reloc_off;
	483	test_stage[i].test_check1=
	484	(void () (int mode, unsigned long startaddr,
	485	unsigned long size, unsigned long *pat))addr;
	486	}
	487	if(test_stage[i].test_check2) {
	488	addr = (ulong) (test_stage[i].test_check2) + gd->reloc_off;
	489	test_stage[i].test_check2=
	490	(void () (int mode, unsigned long startaddr,
	491	unsigned long size, unsigned long *pat))addr;
	492	}
	493	}
	494	}
67c4f48a WD	495
67c4f48a WD	496
27b207fd	497	int mem_test (unsigned long start, unsigned long ramsize, int quiet)
67c4f48a WD	498	{
	499	unsigned long errors, stage;
	500	unsigned long startaddr, size, i;
	501	const unsigned long blocksize = 0x80000; /* check in 512KB blocks */
	502	unsigned long *perr;
	503	unsigned long rdatapat;
	504	char dispbuf[80];
	505	int status = TEST_PASSED;
	506	int prog = 0;
	507
	508	errors = 0;
	509	startaddr = start;
	510	size = ramsize;
	511	if ((quiet & TEST_SHOW_PROG) == TEST_SHOW_PROG) {
	512	prog++;
	513	printf (".");
	514	}
	515	sprintf (dispbuf, "\nMemory Test: addr = 0x%lx size = 0x%lx\n",
	516	startaddr, size);
	517	testm_puts (quiet, dispbuf);
	518	for (stage = 0; stage < TEST_STAGES; stage++) {
	519	sprintf (dispbuf, test_stage[stage].test_write_desc);
	520	testm_puts (quiet, dispbuf);
	521	/* fill SDRAM */
	522	rdatapat = 0x12345678;
	523	sprintf (dispbuf, "writing block: ");
	524	testm_puts (quiet, dispbuf);
	525	for (i = 0; i < size; i += blocksize) {
	526	sprintf (dispbuf, "%04lX\b\b\b\b", i / blocksize);
	527	testm_puts (quiet, dispbuf);
	528	test_stage[stage].test_write (startaddr + i, blocksize,
	529	&rdatapat);
	530	} /* endfor */
	531	sprintf (dispbuf, "\n");
	532	testm_puts (quiet, dispbuf);
	533	if ((quiet & TEST_SHOW_PROG) == TEST_SHOW_PROG) {
	534	prog++;
	535	printf (".");
	536	}
	537	/* check SDRAM */
	538	rdatapat = 0x12345678;
	539	sprintf (dispbuf, "checking block: ");
	540	testm_puts (quiet, dispbuf);
	541	for (i = 0; i < size; i += blocksize) {
	542	sprintf (dispbuf, "%04lX\b\b\b\b", i / blocksize);
	543	testm_puts (quiet, dispbuf);
	544	if ((perr =
	545	test_stage[stage].test_check1 (quiet, startaddr + i,
	546	blocksize,
	547	&rdatapat)) != NULL) {
	548	status = TEST_FAILED;
	549	} /* endif */
	550	} /* endfor */
	551	sprintf (dispbuf, "\n");
	552	testm_puts (quiet, dispbuf);
	553	if ((quiet & TEST_SHOW_PROG) == TEST_SHOW_PROG) {
	554	prog++;
	555	printf (".");
	556	}
	557	if (test_stage[stage].test_check2 != NULL) {
	558	/* check2 SDRAM */
	559	sprintf (dispbuf, "2nd checking block: ");
	560	rdatapat = 0x12345678;
	561	testm_puts (quiet, dispbuf);
562	for (i = 0; i < size; i += blocksize) {
563	sprintf (dispbuf, "%04lX\b\b\b\b", i / blocksize);
564	testm_puts (quiet, dispbuf);
565	if ((perr =
566	test_stage[stage].test_check2 (quiet, startaddr + i,
567	blocksize,
568	&rdatapat)) != NULL) {
569	status = TEST_FAILED;
570	} /* endif */
571	} /* endfor */
572	sprintf (dispbuf, "\n");
573	testm_puts (quiet, dispbuf);
574	if ((quiet & TEST_SHOW_PROG) == TEST_SHOW_PROG) {
575	prog++;
576	printf (".");
577	}
578	}
579
580	} /* next stage */
581	if ((quiet & TEST_SHOW_PROG) == TEST_SHOW_PROG) {
582	while (prog-- > 0)
583	printf ("\b \b");
584	}
585
586	if (status == TEST_FAILED)
587	errors++;
588
589	return (errors);
590	}