diff options
Diffstat (limited to 'common/cmd_mem.c')
| -rw-r--r-- | common/cmd_mem.c | 123 |
1 files changed, 59 insertions, 64 deletions
diff --git a/common/cmd_mem.c b/common/cmd_mem.c index 0e7a4c67c..02ff65843 100644 --- a/common/cmd_mem.c +++ b/common/cmd_mem.c @@ -626,11 +626,9 @@ int do_mem_loopw (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) } #endif /* CONFIG_LOOPW */ -static int mem_test_alt(vu_long *start, vu_long *end, - int iteration_limit) +static ulong mem_test_alt(vu_long *start, vu_long *end) { vu_long *addr; - int iterations = 1; ulong errs = 0; ulong val, readback; int j; @@ -657,27 +655,6 @@ static int mem_test_alt(vu_long *start, vu_long *end, 0xaaaaaaaa, /* alternating 1/0 */ }; - printf("Testing %08x ... %08x:\n", (uint)(uintptr_t)start, - (uint)(uintptr_t)end); - debug("%s:%d: start 0x%p end 0x%p\n", - __func__, __LINE__, start, end); - - for (;;) { - if (ctrlc()) { - putc('\n'); - return 1; - } - - if (iteration_limit && iterations > iteration_limit) { - printf("Tested %d iteration(s) with %lu errors.\n", - iterations-1, errs); - return errs != 0; - } - - printf("Iteration: %6d\r", iterations); - debug("\n"); - iterations++; - /* * Data line test: write a pattern to the first * location, write the 1's complement to a 'parking' @@ -710,7 +687,7 @@ static int mem_test_alt(vu_long *start, vu_long *end, errs++; if (ctrlc()) { putc('\n'); - return 1; + return -1; } } *addr = ~val; @@ -723,7 +700,7 @@ static int mem_test_alt(vu_long *start, vu_long *end, errs++; if (ctrlc()) { putc('\n'); - return 1; + return -1; } } } @@ -791,7 +768,7 @@ static int mem_test_alt(vu_long *start, vu_long *end, errs++; if (ctrlc()) { putc('\n'); - return 1; + return -1; } } } @@ -813,7 +790,7 @@ static int mem_test_alt(vu_long *start, vu_long *end, errs++; if (ctrlc()) { putc('\n'); - return 1; + return -1; } } } @@ -855,7 +832,7 @@ static int mem_test_alt(vu_long *start, vu_long *end, errs++; if (ctrlc()) { putc('\n'); - return 1; + return -1; } } @@ -877,37 +854,38 @@ static int mem_test_alt(vu_long *start, vu_long *end, errs++; if (ctrlc()) { putc('\n'); - return 1; + return -1; } } start[offset] = 0; } - } + + return 0; } -static int mem_test_quick(vu_long *start, vu_long *end, - int iteration_limit, vu_long pattern) +static ulong mem_test_quick(vu_long *start, vu_long *end, vu_long pattern, + int iteration) { vu_long *addr; - int iterations = 1; ulong errs = 0; ulong incr; ulong val, readback; + /* Alternate the pattern */ incr = 1; - for (;;) { - if (ctrlc()) { - putc('\n'); - return 1; - } - - if (iteration_limit && iterations > iteration_limit) { - printf("Tested %d iteration(s) with %lu errors.\n", - iterations-1, errs); - return errs != 0; - } - ++iterations; - + if (iteration & 1) { + incr = -incr; + /* + * Flip the pattern each time to make lots of zeros and + * then, the next time, lots of ones. We decrement + * the "negative" patterns and increment the "positive" + * patterns to preserve this feature. + */ + if (pattern & 0x80000000) + pattern = -pattern; /* complement & increment */ + else + pattern = ~pattern; + } printf("\rPattern %08lX Writing..." "%12s" "\b\b\b\b\b\b\b\b\b\b", @@ -931,24 +909,13 @@ static int mem_test_quick(vu_long *start, vu_long *end, errs++; if (ctrlc()) { putc('\n'); - return 1; + return -1; } } val += incr; } - /* - * Flip the pattern each time to make lots of zeros and - * then, the next time, lots of ones. We decrement - * the "negative" patterns and increment the "positive" - * patterns to preserve this feature. - */ - if (pattern & 0x80000000) - pattern = -pattern; /* complement & increment */ - else - pattern = ~pattern; - incr = -incr; - } + return 0; } /* @@ -962,7 +929,9 @@ static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc, vu_long *start, *end; int iteration_limit; int ret; + ulong errs = 0; /* number of errors, or -1 if interrupted */ ulong pattern; + int iteration; #if defined(CONFIG_SYS_ALT_MEMTEST) const int alt_test = 1; #else @@ -989,10 +958,36 @@ static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc, else iteration_limit = 0; - if (alt_test) - ret = mem_test_alt(start, end, iteration_limit); - else - ret = mem_test_quick(start, end, iteration_limit, pattern); + printf("Testing %08x ... %08x:\n", (uint)(uintptr_t)start, + (uint)(uintptr_t)end); + debug("%s:%d: start 0x%p end 0x%p\n", + __func__, __LINE__, start, end); + + for (iteration = 0; + !iteration_limit || iteration < iteration_limit; + iteration++) { + if (ctrlc()) { + putc('\n'); + errs = -1UL; + break; + } + + printf("Iteration: %6d\r", iteration + 1); + debug("\n"); + if (alt_test) + errs = mem_test_alt(start, end); + else + errs = mem_test_quick(start, end, pattern, iteration); + } + + if (errs == -1UL) { + /* Memory test was aborted */ + ret = 1; + } else { + printf("Tested %d iteration(s) with %lu errors.\n", + iteration, errs); + ret = errs != 0; + } return ret; /* not reached */ } |