Half of the code is currently hidden behind an #ifdef. Move the two memory tests into their own functions and use the compiler to eliminate the unused code.
Signed-off-by: Simon Glass sjg@chromium.org --- Changes in v3: None Changes in v2: None
common/cmd_mem.c | 217 +++++++++++++++++++++++++++++-------------------------- 1 file changed, 116 insertions(+), 101 deletions(-)
diff --git a/common/cmd_mem.c b/common/cmd_mem.c index ee7bf9a..0e7a4c6 100644 --- a/common/cmd_mem.c +++ b/common/cmd_mem.c @@ -626,36 +626,26 @@ int do_mem_loopw (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) } #endif /* CONFIG_LOOPW */
-/* - * Perform a memory test. A more complete alternative test can be - * configured using CONFIG_SYS_ALT_MEMTEST. The complete test loops until - * interrupted by ctrl-c or by a failure of one of the sub-tests. - */ -static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc, - char * const argv[]) +static int mem_test_alt(vu_long *start, vu_long *end, + int iteration_limit) { - vu_long *addr, *start, *end; - ulong val; - ulong readback; - ulong errs = 0; + vu_long *addr; int iterations = 1; - int iteration_limit; - -#if defined(CONFIG_SYS_ALT_MEMTEST) - vu_long len; - vu_long offset; - vu_long test_offset; - vu_long pattern; - vu_long temp; - vu_long anti_pattern; - vu_long num_words; + ulong errs = 0; + ulong val, readback; + int j; + vu_long len; + vu_long offset; + vu_long test_offset; + vu_long pattern; + vu_long temp; + vu_long anti_pattern; + vu_long num_words; #if defined(CONFIG_SYS_MEMTEST_SCRATCH) - vu_long *dummy = (vu_long*)CONFIG_SYS_MEMTEST_SCRATCH; + vu_long *dummy = (vu_long *)CONFIG_SYS_MEMTEST_SCRATCH; #else vu_long *dummy = NULL; /* yes, this is address 0x0, not NULL */ #endif - int j; - static const ulong bitpattern[] = { 0x00000001, /* single bit */ 0x00000003, /* two adjacent bits */ @@ -666,43 +656,18 @@ static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc, 0x00000055, /* four non-adjacent bits */ 0xaaaaaaaa, /* alternating 1/0 */ }; -#else - ulong incr; - ulong pattern; -#endif
- if (argc > 1) - start = (ulong *)simple_strtoul(argv[1], NULL, 16); - else - start = (ulong *)CONFIG_SYS_MEMTEST_START; - - if (argc > 2) - end = (ulong *)simple_strtoul(argv[2], NULL, 16); - else - end = (ulong *)(CONFIG_SYS_MEMTEST_END); - - if (argc > 3) - pattern = (ulong)simple_strtoul(argv[3], NULL, 16); - 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); + printf("Testing %08x ... %08x:\n", (uint)(uintptr_t)start, + (uint)(uintptr_t)end); debug("%s:%d: start 0x%p end 0x%p\n", - __FUNCTION__, __LINE__, start, end); + __func__, __LINE__, start, end);
for (;;) { if (ctrlc()) { - putc ('\n'); + putc('\n'); return 1; }
- if (iteration_limit && iterations > iteration_limit) { printf("Tested %d iteration(s) with %lu errors.\n", iterations-1, errs); @@ -731,34 +696,35 @@ static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc, * pattern and ~pattern). */ addr = start; - for (j = 0; j < sizeof(bitpattern)/sizeof(bitpattern[0]); j++) { + for (j = 0; j < sizeof(bitpattern) / sizeof(bitpattern[0]); + j++) { val = bitpattern[j]; - for(; val != 0; val <<= 1) { + for (; val != 0; val <<= 1) { *addr = val; - *dummy = ~val; /* clear the test data off of the bus */ + *dummy = ~val; /* clear the test data off the bus */ readback = *addr; if(readback != val) { - printf ("FAILURE (data line): " - "expected %08lx, actual %08lx\n", - val, readback); - errs++; - if (ctrlc()) { - putc ('\n'); - return 1; - } + printf("FAILURE (data line): " + "expected %08lx, actual %08lx\n", + val, readback); + errs++; + if (ctrlc()) { + putc('\n'); + return 1; + } } *addr = ~val; *dummy = val; readback = *addr; - if(readback != ~val) { - printf ("FAILURE (data line): " - "Is %08lx, should be %08lx\n", - readback, ~val); - errs++; - if (ctrlc()) { - putc ('\n'); - return 1; - } + if (readback != ~val) { + printf("FAILURE (data line): " + "Is %08lx, should be %08lx\n", + readback, ~val); + errs++; + if (ctrlc()) { + putc('\n'); + return 1; + } } } } @@ -802,15 +768,13 @@ static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc, anti_pattern = (vu_long) 0x55555555;
debug("%s:%d: length = 0x%.8lx\n", - __FUNCTION__, __LINE__, - len); + __func__, __LINE__, len); /* * Write the default pattern at each of the * power-of-two offsets. */ - for (offset = 1; offset < len; offset <<= 1) { + for (offset = 1; offset < len; offset <<= 1) start[offset] = pattern; - }
/* * Check for address bits stuck high. @@ -821,12 +785,12 @@ static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc, for (offset = 1; offset < len; offset <<= 1) { temp = start[offset]; if (temp != pattern) { - printf ("\nFAILURE: Address bit stuck high @ 0x%.8lx:" + printf("\nFAILURE: Address bit stuck high @ 0x%.8lx:" " expected 0x%.8lx, actual 0x%.8lx\n", (ulong)&start[offset], pattern, temp); errs++; if (ctrlc()) { - putc ('\n'); + putc('\n'); return 1; } } @@ -843,12 +807,12 @@ static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc, for (offset = 1; offset < len; offset <<= 1) { temp = start[offset]; if ((temp != pattern) && (offset != test_offset)) { - printf ("\nFAILURE: Address bit stuck low or shorted @" + printf("\nFAILURE: Address bit stuck low or shorted @" " 0x%.8lx: expected 0x%.8lx, actual 0x%.8lx\n", (ulong)&start[offset], pattern, temp); errs++; if (ctrlc()) { - putc ('\n'); + putc('\n'); return 1; } } @@ -885,13 +849,13 @@ static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc, WATCHDOG_RESET(); temp = start[offset]; if (temp != pattern) { - printf ("\nFAILURE (read/write) @ 0x%.8lx:" + printf("\nFAILURE (read/write) @ 0x%.8lx:" " expected 0x%.8lx, actual 0x%.8lx)\n", (ulong)&start[offset], pattern, temp); errs++; if (ctrlc()) { - putc ('\n'); - return 1; + putc('\n'); + return 1; } }
@@ -907,24 +871,33 @@ static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc, anti_pattern = ~pattern; temp = start[offset]; if (temp != anti_pattern) { - printf ("\nFAILURE (read/write): @ 0x%.8lx:" + printf("\nFAILURE (read/write): @ 0x%.8lx:" " expected 0x%.8lx, actual 0x%.8lx)\n", (ulong)&start[offset], anti_pattern, temp); errs++; if (ctrlc()) { - putc ('\n'); - return 1; + putc('\n'); + return 1; } } start[offset] = 0; } } +} + +static int mem_test_quick(vu_long *start, vu_long *end, + int iteration_limit, vu_long pattern) +{ + vu_long *addr; + int iterations = 1; + ulong errs = 0; + ulong incr; + ulong val, readback;
-#else /* The original, quickie test */ incr = 1; for (;;) { if (ctrlc()) { - putc ('\n'); + putc('\n'); return 1; }
@@ -935,29 +908,29 @@ static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc, } ++iterations;
- printf ("\rPattern %08lX Writing..." + printf("\rPattern %08lX Writing..." "%12s" "\b\b\b\b\b\b\b\b\b\b", pattern, "");
- for (addr=start,val=pattern; addr<end; addr++) { + for (addr = start, val = pattern; addr < end; addr++) { WATCHDOG_RESET(); *addr = val; - val += incr; + val += incr; }
- puts ("Reading..."); + puts("Reading...");
- for (addr=start,val=pattern; addr<end; addr++) { + for (addr = start, val = pattern; addr < end; addr++) { WATCHDOG_RESET(); readback = *addr; if (readback != val) { - printf ("\nMem error @ 0x%08X: " + printf("\nMem error @ 0x%08X: " "found %08lX, expected %08lX\n", (uint)(uintptr_t)addr, readback, val); errs++; if (ctrlc()) { - putc ('\n'); + putc('\n'); return 1; } } @@ -970,16 +943,58 @@ static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc, * the "negative" patterns and increment the "positive" * patterns to preserve this feature. */ - if(pattern & 0x80000000) { + if (pattern & 0x80000000) pattern = -pattern; /* complement & increment */ - } - else { + else pattern = ~pattern; - } incr = -incr; } +} + +/* + * Perform a memory test. A more complete alternative test can be + * configured using CONFIG_SYS_ALT_MEMTEST. The complete test loops until + * interrupted by ctrl-c or by a failure of one of the sub-tests. + */ +static int do_mem_mtest(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]) +{ + vu_long *start, *end; + int iteration_limit; + int ret; + ulong pattern; +#if defined(CONFIG_SYS_ALT_MEMTEST) + const int alt_test = 1; +#else + const int alt_test = 0; #endif - return 0; /* not reached */ + + if (argc > 1) + start = (ulong *)simple_strtoul(argv[1], NULL, 16); + else + start = (ulong *)CONFIG_SYS_MEMTEST_START; + + if (argc > 2) + end = (ulong *)simple_strtoul(argv[2], NULL, 16); + else + end = (ulong *)(CONFIG_SYS_MEMTEST_END); + + if (argc > 3) + pattern = (ulong)simple_strtoul(argv[3], NULL, 16); + else + pattern = 0; + + if (argc > 4) + iteration_limit = (ulong)simple_strtoul(argv[4], NULL, 16); + 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); + + return ret; /* not reached */ }