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-rw-r--r--board/mpl/common/memtst.c568
1 files changed, 568 insertions, 0 deletions
diff --git a/board/mpl/common/memtst.c b/board/mpl/common/memtst.c
new file mode 100644
index 0000000..f0ace2a
--- /dev/null
+++ b/board/mpl/common/memtst.c
@@ -0,0 +1,568 @@
+/*
+ * (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_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
+const 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);
+}
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