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>
diff --git a/common/cmd_mem.c b/common/cmd_mem.c
index 400cfd7..c209d62 100644
--- a/common/cmd_mem.c
+++ b/common/cmd_mem.c
@@ -672,6 +672,8 @@
ulong val;
ulong readback;
int rcode = 0;
+ int iterations = 1;
+ int iteration_limit;
#if defined(CONFIG_SYS_ALT_MEMTEST)
vu_long len;
@@ -687,7 +689,6 @@
vu_long *dummy = 0; /* yes, this is address 0x0, not NULL */
#endif
int j;
- int iterations = 1;
static const ulong bitpattern[] = {
0x00000001, /* single bit */
@@ -704,23 +705,25 @@
ulong pattern;
#endif
- if (argc > 1) {
+ if (argc > 1)
start = (ulong *)simple_strtoul(argv[1], NULL, 16);
- } else {
+ else
start = (ulong *)CONFIG_SYS_MEMTEST_START;
- }
- if (argc > 2) {
+ if (argc > 2)
end = (ulong *)simple_strtoul(argv[2], NULL, 16);
- } else {
+ else
end = (ulong *)(CONFIG_SYS_MEMTEST_END);
- }
- if (argc > 3) {
+ if (argc > 3)
pattern = (ulong)simple_strtoul(argv[3], NULL, 16);
- } else {
+ else
pattern = 0;
- }
+
+ if (argc > 4)
+ iteration_limit = (ulong)simple_strtoul(argv[4], NULL, 16);
+ else
+ iteration_limit = 0;
#if defined(CONFIG_SYS_ALT_MEMTEST)
printf ("Testing %08x ... %08x:\n", (uint)start, (uint)end);
@@ -733,8 +736,15 @@
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\n", iterations);
+ PRINTF("\n");
iterations++;
/*
@@ -925,6 +935,13 @@
putc ('\n');
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..."
"%12s"
@@ -1276,9 +1293,9 @@
#endif /* CONFIG_LOOPW */
U_BOOT_CMD(
- mtest, 4, 1, do_mem_mtest,
- "mtest - simple RAM test\n",
- "[start [end [pattern]]]\n"
+ mtest, 5, 1, do_mem_mtest,
+ "mtest - simple RAM test\n",
+ "[start [end [pattern [iterations]]]]\n"
" - simple RAM read/write test\n"
);