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common: Iteration limit for memory test. 

The iteration limit is passed to mtest as a fourth parameter:
[start [end [pattern [iterations]]]]
If no fourth parameter is supplied, there is no iteration limit and the
test will loop forever.

Signed-off-by: Dirk Eibach <eibach@gdsys.de>
This commit is contained in:
Dirk Eibach 2008-12-16 14:51:56 +01:00 committed by Wolfgang Denk
parent 97cae3a4c6
commit b6fc6fd49a
1 changed files with 31 additions and 14 deletions
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45
common/cmd_mem.c
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@ -672,6 +672,8 @@ int do_mem_mtest (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
ulong val; ulong val;
ulong readback; ulong readback;
int rcode = 0; int rcode = 0;
int iterations = 1;
int iteration_limit;
#if defined(CONFIG_SYS_ALT_MEMTEST) #if defined(CONFIG_SYS_ALT_MEMTEST)
vu_long len; vu_long len;
@ -687,7 +689,6 @@ int do_mem_mtest (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
vu_long *dummy = 0; /* yes, this is address 0x0, not NULL */ vu_long *dummy = 0; /* yes, this is address 0x0, not NULL */
#endif #endif
int j; int j;
int iterations = 1;
static const ulong bitpattern[] = { static const ulong bitpattern[] = {
0x00000001, /* single bit */ 0x00000001, /* single bit */
@ -704,23 +705,25 @@ int do_mem_mtest (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
ulong pattern; ulong pattern;
#endif #endif
if (argc > 1) { if (argc > 1)
start = (ulong *)simple_strtoul(argv[1], NULL, 16); start = (ulong *)simple_strtoul(argv[1], NULL, 16);
} else { else
start = (ulong *)CONFIG_SYS_MEMTEST_START; start = (ulong *)CONFIG_SYS_MEMTEST_START;
}
if (argc > 2) { if (argc > 2)
end = (ulong *)simple_strtoul(argv[2], NULL, 16); end = (ulong *)simple_strtoul(argv[2], NULL, 16);
} else { else
end = (ulong *)(CONFIG_SYS_MEMTEST_END); end = (ulong *)(CONFIG_SYS_MEMTEST_END);
}
if (argc > 3) { if (argc > 3)
pattern = (ulong)simple_strtoul(argv[3], NULL, 16); pattern = (ulong)simple_strtoul(argv[3], NULL, 16);
} else { else
pattern = 0; pattern = 0;
}
if (argc > 4)
iteration_limit = (ulong)simple_strtoul(argv[4], NULL, 16);
else
iteration_limit = 0;
#if defined(CONFIG_SYS_ALT_MEMTEST) #if defined(CONFIG_SYS_ALT_MEMTEST)
printf ("Testing %08x ... %08x:\n", (uint)start, (uint)end); printf ("Testing %08x ... %08x:\n", (uint)start, (uint)end);
@ -733,8 +736,15 @@ int do_mem_mtest (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
return 1; return 1;
} }
if (iteration_limit && iterations > iteration_limit) {
printf("Tested %d iteration(s) without errors.\n",
iterations-1);
return 0;
}
printf("Iteration: %6d\r", iterations); printf("Iteration: %6d\r", iterations);
PRINTF("Iteration: %6d\n", iterations); PRINTF("\n");
iterations++; iterations++;
/* /*
@ -926,6 +936,13 @@ int do_mem_mtest (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
return 1; return 1;
} }
if (iteration_limit && iterations > iteration_limit) {
printf("Tested %d iteration(s) without errors.\n",
iterations-1);
return 0;
}
++iterations;
printf ("\rPattern %08lX Writing..." printf ("\rPattern %08lX Writing..."
"%12s" "%12s"
"\b\b\b\b\b\b\b\b\b\b", "\b\b\b\b\b\b\b\b\b\b",
@ -1276,9 +1293,9 @@ U_BOOT_CMD(
#endif /* CONFIG_LOOPW */ #endif /* CONFIG_LOOPW */
U_BOOT_CMD( U_BOOT_CMD(
mtest, 4, 1, do_mem_mtest, mtest, 5, 1, do_mem_mtest,
"mtest - simple RAM test\n", "mtest - simple RAM test\n",
"[start [end [pattern]]]\n" "[start [end [pattern [iterations]]]]\n"
" - simple RAM read/write test\n" " - simple RAM read/write test\n"
); );