/* * (C) Copyright 2000 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * SPDX-License-Identifier: GPL-2.0+ */ /* * Memory Functions * * Copied from FADS ROM, Dan Malek (dmalek@jlc.net) */ #include <common.h> #include <command.h> #ifdef CONFIG_HAS_DATAFLASH #include <dataflash.h> #endif #include <hash.h> #include <watchdog.h> #include <asm/io.h> #include <linux/compiler.h> DECLARE_GLOBAL_DATA_PTR; #ifndef CONFIG_SYS_MEMTEST_SCRATCH #define CONFIG_SYS_MEMTEST_SCRATCH 0 #endif static int mod_mem(cmd_tbl_t *, int, int, int, char * const []); /* Display values from last command. * Memory modify remembered values are different from display memory. */ static uint dp_last_addr, dp_last_size; static uint dp_last_length = 0x40; static uint mm_last_addr, mm_last_size; static ulong base_address = 0; /* Memory Display * * Syntax: * md{.b, .w, .l, .q} {addr} {len} */ #define DISP_LINE_LEN 16 static int do_mem_md(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { ulong addr, length; #if defined(CONFIG_HAS_DATAFLASH) ulong nbytes, linebytes; #endif int size; int rc = 0; /* We use the last specified parameters, unless new ones are * entered. */ addr = dp_last_addr; size = dp_last_size; length = dp_last_length; if (argc < 2) return CMD_RET_USAGE; if ((flag & CMD_FLAG_REPEAT) == 0) { /* New command specified. Check for a size specification. * Defaults to long if no or incorrect specification. */ if ((size = cmd_get_data_size(argv[0], 4)) < 0) return 1; /* Address is specified since argc > 1 */ addr = simple_strtoul(argv[1], NULL, 16); addr += base_address; /* If another parameter, it is the length to display. * Length is the number of objects, not number of bytes. */ if (argc > 2) length = simple_strtoul(argv[2], NULL, 16); } #if defined(CONFIG_HAS_DATAFLASH) /* Print the lines. * * We buffer all read data, so we can make sure data is read only * once, and all accesses are with the specified bus width. */ nbytes = length * size; do { char linebuf[DISP_LINE_LEN]; void* p; linebytes = (nbytes>DISP_LINE_LEN)?DISP_LINE_LEN:nbytes; rc = read_dataflash(addr, (linebytes/size)*size, linebuf); p = (rc == DATAFLASH_OK) ? linebuf : (void*)addr; print_buffer(addr, p, size, linebytes/size, DISP_LINE_LEN/size); nbytes -= linebytes; addr += linebytes; if (ctrlc()) { rc = 1; break; } } while (nbytes > 0); #else # if defined(CONFIG_BLACKFIN) /* See if we're trying to display L1 inst */ if (addr_bfin_on_chip_mem(addr)) { char linebuf[DISP_LINE_LEN]; ulong linebytes, nbytes = length * size; do { linebytes = (nbytes > DISP_LINE_LEN) ? DISP_LINE_LEN : nbytes; memcpy(linebuf, (void *)addr, linebytes); print_buffer(addr, linebuf, size, linebytes/size, DISP_LINE_LEN/size); nbytes -= linebytes; addr += linebytes; if (ctrlc()) { rc = 1; break; } } while (nbytes > 0); } else # endif { ulong bytes = size * length; const void *buf = map_sysmem(addr, bytes); /* Print the lines. */ print_buffer(addr, buf, size, length, DISP_LINE_LEN / size); addr += bytes; unmap_sysmem(buf); } #endif dp_last_addr = addr; dp_last_length = length; dp_last_size = size; return (rc); } static int do_mem_mm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { return mod_mem (cmdtp, 1, flag, argc, argv); } static int do_mem_nm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { return mod_mem (cmdtp, 0, flag, argc, argv); } static int do_mem_mw(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA u64 writeval; #else ulong writeval; #endif ulong addr, count; int size; void *buf; ulong bytes; if ((argc < 3) || (argc > 4)) return CMD_RET_USAGE; /* Check for size specification. */ if ((size = cmd_get_data_size(argv[0], 4)) < 1) return 1; /* Address is specified since argc > 1 */ addr = simple_strtoul(argv[1], NULL, 16); addr += base_address; /* Get the value to write. */ #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA writeval = simple_strtoull(argv[2], NULL, 16); #else writeval = simple_strtoul(argv[2], NULL, 16); #endif /* Count ? */ if (argc == 4) { count = simple_strtoul(argv[3], NULL, 16); } else { count = 1; } bytes = size * count; buf = map_sysmem(addr, bytes); while (count-- > 0) { if (size == 4) *((u32 *)buf) = (u32)writeval; #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA else if (size == 8) *((u64 *)buf) = (u64)writeval; #endif else if (size == 2) *((u16 *)buf) = (u16)writeval; else *((u8 *)buf) = (u8)writeval; buf += size; } unmap_sysmem(buf); return 0; } #ifdef CONFIG_MX_CYCLIC int do_mem_mdc ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { int i; ulong count; if (argc < 4) return CMD_RET_USAGE; count = simple_strtoul(argv[3], NULL, 10); for (;;) { do_mem_md (NULL, 0, 3, argv); /* delay for <count> ms... */ for (i=0; i<count; i++) udelay (1000); /* check for ctrl-c to abort... */ if (ctrlc()) { puts("Abort\n"); return 0; } } return 0; } int do_mem_mwc ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { int i; ulong count; if (argc < 4) return CMD_RET_USAGE; count = simple_strtoul(argv[3], NULL, 10); for (;;) { do_mem_mw (NULL, 0, 3, argv); /* delay for <count> ms... */ for (i=0; i<count; i++) udelay (1000); /* check for ctrl-c to abort... */ if (ctrlc()) { puts("Abort\n"); return 0; } } return 0; } #endif /* CONFIG_MX_CYCLIC */ static int do_mem_cmp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { ulong addr1, addr2, count, ngood, bytes; int size; int rcode = 0; const char *type; const void *buf1, *buf2, *base; #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA u64 word1, word2; #else ulong word1, word2; #endif if (argc != 4) return CMD_RET_USAGE; /* Check for size specification. */ if ((size = cmd_get_data_size(argv[0], 4)) < 0) return 1; type = size == 8 ? "double word" : size == 4 ? "word" : size == 2 ? "halfword" : "byte"; addr1 = simple_strtoul(argv[1], NULL, 16); addr1 += base_address; addr2 = simple_strtoul(argv[2], NULL, 16); addr2 += base_address; count = simple_strtoul(argv[3], NULL, 16); #ifdef CONFIG_HAS_DATAFLASH if (addr_dataflash(addr1) | addr_dataflash(addr2)){ puts ("Comparison with DataFlash space not supported.\n\r"); return 0; } #endif #ifdef CONFIG_BLACKFIN if (addr_bfin_on_chip_mem(addr1) || addr_bfin_on_chip_mem(addr2)) { puts ("Comparison with L1 instruction memory not supported.\n\r"); return 0; } #endif bytes = size * count; base = buf1 = map_sysmem(addr1, bytes); buf2 = map_sysmem(addr2, bytes); for (ngood = 0; ngood < count; ++ngood) { if (size == 4) { word1 = *(u32 *)buf1; word2 = *(u32 *)buf2; #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA } else if (size == 8) { word1 = *(u64 *)buf1; word2 = *(u64 *)buf2; #endif } else if (size == 2) { word1 = *(u16 *)buf1; word2 = *(u16 *)buf2; } else { word1 = *(u8 *)buf1; word2 = *(u8 *)buf2; } if (word1 != word2) { ulong offset = buf1 - base; #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA printf("%s at 0x%p (%#0*llx) != %s at 0x%p (%#0*llx)\n", type, (void *)(addr1 + offset), size, word1, type, (void *)(addr2 + offset), size, word2); #else printf("%s at 0x%08lx (%#0*lx) != %s at 0x%08lx (%#0*lx)\n", type, (ulong)(addr1 + offset), size, word1, type, (ulong)(addr2 + offset), size, word2); #endif rcode = 1; break; } buf1 += size; buf2 += size; /* reset watchdog from time to time */ if ((ngood % (64 << 10)) == 0) WATCHDOG_RESET(); } unmap_sysmem(buf1); unmap_sysmem(buf2); printf("Total of %ld %s(s) were the same\n", ngood, type); return rcode; } static int do_mem_cp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { ulong addr, dest, count, bytes; int size; const void *src; void *buf; if (argc != 4) return CMD_RET_USAGE; /* Check for size specification. */ if ((size = cmd_get_data_size(argv[0], 4)) < 0) return 1; addr = simple_strtoul(argv[1], NULL, 16); addr += base_address; dest = simple_strtoul(argv[2], NULL, 16); dest += base_address; count = simple_strtoul(argv[3], NULL, 16); if (count == 0) { puts ("Zero length ???\n"); return 1; } #ifndef CONFIG_SYS_NO_FLASH /* check if we are copying to Flash */ if ( (addr2info(dest) != NULL) #ifdef CONFIG_HAS_DATAFLASH && (!addr_dataflash(dest)) #endif ) { int rc; puts ("Copy to Flash... "); rc = flash_write ((char *)addr, dest, count*size); if (rc != 0) { flash_perror (rc); return (1); } puts ("done\n"); return 0; } #endif #ifdef CONFIG_HAS_DATAFLASH /* Check if we are copying from RAM or Flash to DataFlash */ if (addr_dataflash(dest) && !addr_dataflash(addr)){ int rc; puts ("Copy to DataFlash... "); rc = write_dataflash (dest, addr, count*size); if (rc != 1) { dataflash_perror (rc); return (1); } puts ("done\n"); return 0; } /* Check if we are copying from DataFlash to RAM */ if (addr_dataflash(addr) && !addr_dataflash(dest) #ifndef CONFIG_SYS_NO_FLASH && (addr2info(dest) == NULL) #endif ){ int rc; rc = read_dataflash(addr, count * size, (char *) dest); if (rc != 1) { dataflash_perror (rc); return (1); } return 0; } if (addr_dataflash(addr) && addr_dataflash(dest)){ puts ("Unsupported combination of source/destination.\n\r"); return 1; } #endif #ifdef CONFIG_BLACKFIN /* See if we're copying to/from L1 inst */ if (addr_bfin_on_chip_mem(dest) || addr_bfin_on_chip_mem(addr)) { memcpy((void *)dest, (void *)addr, count * size); return 0; } #endif bytes = size * count; buf = map_sysmem(dest, bytes); src = map_sysmem(addr, bytes); while (count-- > 0) { if (size == 4) *((u32 *)buf) = *((u32 *)src); #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA else if (size == 8) *((u64 *)buf) = *((u64 *)src); #endif else if (size == 2) *((u16 *)buf) = *((u16 *)src); else *((u8 *)buf) = *((u8 *)src); src += size; buf += size; /* reset watchdog from time to time */ if ((count % (64 << 10)) == 0) WATCHDOG_RESET(); } return 0; } static int do_mem_base(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { if (argc > 1) { /* Set new base address. */ base_address = simple_strtoul(argv[1], NULL, 16); } /* Print the current base address. */ printf("Base Address: 0x%08lx\n", base_address); return 0; } static int do_mem_loop(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { ulong addr, length, i, bytes; int size; #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA volatile u64 *llp; #endif volatile u32 *longp; volatile u16 *shortp; volatile u8 *cp; const void *buf; if (argc < 3) return CMD_RET_USAGE; /* * Check for a size specification. * Defaults to long if no or incorrect specification. */ if ((size = cmd_get_data_size(argv[0], 4)) < 0) return 1; /* Address is always specified. */ addr = simple_strtoul(argv[1], NULL, 16); /* Length is the number of objects, not number of bytes. */ length = simple_strtoul(argv[2], NULL, 16); bytes = size * length; buf = map_sysmem(addr, bytes); /* We want to optimize the loops to run as fast as possible. * If we have only one object, just run infinite loops. */ if (length == 1) { #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA if (size == 8) { llp = (u64 *)buf; for (;;) i = *llp; } #endif if (size == 4) { longp = (u32 *)buf; for (;;) i = *longp; } if (size == 2) { shortp = (u16 *)buf; for (;;) i = *shortp; } cp = (u8 *)buf; for (;;) i = *cp; } #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA if (size == 8) { for (;;) { llp = (u64 *)buf; i = length; while (i-- > 0) *llp++; } } #endif if (size == 4) { for (;;) { longp = (u32 *)buf; i = length; while (i-- > 0) *longp++; } } if (size == 2) { for (;;) { shortp = (u16 *)buf; i = length; while (i-- > 0) *shortp++; } } for (;;) { cp = (u8 *)buf; i = length; while (i-- > 0) *cp++; } unmap_sysmem(buf); return 0; } #ifdef CONFIG_LOOPW int do_mem_loopw (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { ulong addr, length, i, bytes; int size; #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA volatile u64 *llp; u64 data; #else ulong data; #endif volatile u32 *longp; volatile u16 *shortp; volatile u8 *cp; void *buf; if (argc < 4) return CMD_RET_USAGE; /* * Check for a size specification. * Defaults to long if no or incorrect specification. */ if ((size = cmd_get_data_size(argv[0], 4)) < 0) return 1; /* Address is always specified. */ addr = simple_strtoul(argv[1], NULL, 16); /* Length is the number of objects, not number of bytes. */ length = simple_strtoul(argv[2], NULL, 16); /* data to write */ #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA data = simple_strtoull(argv[3], NULL, 16); #else data = simple_strtoul(argv[3], NULL, 16); #endif bytes = size * length; buf = map_sysmem(addr, bytes); /* We want to optimize the loops to run as fast as possible. * If we have only one object, just run infinite loops. */ if (length == 1) { #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA if (size == 8) { llp = (u64 *)buf; for (;;) *llp = data; } #endif if (size == 4) { longp = (u32 *)buf; for (;;) *longp = data; } if (size == 2) { shortp = (u16 *)buf; for (;;) *shortp = data; } cp = (u8 *)buf; for (;;) *cp = data; } #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA if (size == 8) { for (;;) { llp = (u64 *)buf; i = length; while (i-- > 0) *llp++ = data; } } #endif if (size == 4) { for (;;) { longp = (u32 *)buf; i = length; while (i-- > 0) *longp++ = data; } } if (size == 2) { for (;;) { shortp = (u16 *)buf; i = length; while (i-- > 0) *shortp++ = data; } } for (;;) { cp = (u8 *)buf; i = length; while (i-- > 0) *cp++ = data; } } #endif /* CONFIG_LOOPW */ #ifdef CONFIG_CMD_MEMTEST static ulong mem_test_alt(vu_long *buf, ulong start_addr, ulong end_addr, vu_long *dummy) { vu_long *addr; ulong errs = 0; ulong val, readback; int j; vu_long offset; vu_long test_offset; vu_long pattern; vu_long temp; vu_long anti_pattern; vu_long num_words; static const ulong bitpattern[] = { 0x00000001, /* single bit */ 0x00000003, /* two adjacent bits */ 0x00000007, /* three adjacent bits */ 0x0000000F, /* four adjacent bits */ 0x00000005, /* two non-adjacent bits */ 0x00000015, /* three non-adjacent bits */ 0x00000055, /* four non-adjacent bits */ 0xaaaaaaaa, /* alternating 1/0 */ }; num_words = (end_addr - start_addr) / sizeof(vu_long); /* * Data line test: write a pattern to the first * location, write the 1's complement to a 'parking' * address (changes the state of the data bus so a * floating bus doesn't give a false OK), and then * read the value back. Note that we read it back * into a variable because the next time we read it, * it might be right (been there, tough to explain to * the quality guys why it prints a failure when the * "is" and "should be" are obviously the same in the * error message). * * Rather than exhaustively testing, we test some * patterns by shifting '1' bits through a field of * '0's and '0' bits through a field of '1's (i.e. * pattern and ~pattern). */ addr = buf; for (j = 0; j < sizeof(bitpattern) / sizeof(bitpattern[0]); j++) { val = bitpattern[j]; for (; val != 0; val <<= 1) { *addr = val; *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()) 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()) return -1; } } } /* * Based on code whose Original Author and Copyright * information follows: Copyright (c) 1998 by Michael * Barr. This software is placed into the public * domain and may be used for any purpose. However, * this notice must not be changed or removed and no * warranty is either expressed or implied by its * publication or distribution. */ /* * Address line test * Description: Test the address bus wiring in a * memory region by performing a walking * 1's test on the relevant bits of the * address and checking for aliasing. * This test will find single-bit * address failures such as stuck-high, * stuck-low, and shorted pins. The base * address and size of the region are * selected by the caller. * Notes: For best results, the selected base * address should have enough LSB 0's to * guarantee single address bit changes. * For example, to test a 64-Kbyte * region, select a base address on a * 64-Kbyte boundary. Also, select the * region size as a power-of-two if at * all possible. * * Returns: 0 if the test succeeds, 1 if the test fails. */ pattern = (vu_long) 0xaaaaaaaa; anti_pattern = (vu_long) 0x55555555; debug("%s:%d: length = 0x%.8lx\n", __func__, __LINE__, num_words); /* * Write the default pattern at each of the * power-of-two offsets. */ for (offset = 1; offset < num_words; offset <<= 1) addr[offset] = pattern; /* * Check for address bits stuck high. */ test_offset = 0; addr[test_offset] = anti_pattern; for (offset = 1; offset < num_words; offset <<= 1) { temp = addr[offset]; if (temp != pattern) { printf("\nFAILURE: Address bit stuck high @ 0x%.8lx:" " expected 0x%.8lx, actual 0x%.8lx\n", start_addr + offset*sizeof(vu_long), pattern, temp); errs++; if (ctrlc()) return -1; } } addr[test_offset] = pattern; WATCHDOG_RESET(); /* * Check for addr bits stuck low or shorted. */ for (test_offset = 1; test_offset < num_words; test_offset <<= 1) { addr[test_offset] = anti_pattern; for (offset = 1; offset < num_words; offset <<= 1) { temp = addr[offset]; if ((temp != pattern) && (offset != test_offset)) { printf("\nFAILURE: Address bit stuck low or" " shorted @ 0x%.8lx: expected 0x%.8lx," " actual 0x%.8lx\n", start_addr + offset*sizeof(vu_long), pattern, temp); errs++; if (ctrlc()) return -1; } } addr[test_offset] = pattern; } /* * Description: Test the integrity of a physical * memory device by performing an * increment/decrement test over the * entire region. In the process every * storage bit in the device is tested * as a zero and a one. The base address * and the size of the region are * selected by the caller. * * Returns: 0 if the test succeeds, 1 if the test fails. */ num_words++; /* * Fill memory with a known pattern. */ for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) { WATCHDOG_RESET(); addr[offset] = pattern; } /* * Check each location and invert it for the second pass. */ for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) { WATCHDOG_RESET(); temp = addr[offset]; if (temp != pattern) { printf("\nFAILURE (read/write) @ 0x%.8lx:" " expected 0x%.8lx, actual 0x%.8lx)\n", start_addr + offset*sizeof(vu_long), pattern, temp); errs++; if (ctrlc()) return -1; } anti_pattern = ~pattern; addr[offset] = anti_pattern; } /* * Check each location for the inverted pattern and zero it. */ for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) { WATCHDOG_RESET(); anti_pattern = ~pattern; temp = addr[offset]; if (temp != anti_pattern) { printf("\nFAILURE (read/write): @ 0x%.8lx:" " expected 0x%.8lx, actual 0x%.8lx)\n", start_addr + offset*sizeof(vu_long), anti_pattern, temp); errs++; if (ctrlc()) return -1; } addr[offset] = 0; } return 0; } static ulong mem_test_quick(vu_long *buf, ulong start_addr, ulong end_addr, vu_long pattern, int iteration) { vu_long *end; vu_long *addr; ulong errs = 0; ulong incr, length; ulong val, readback; /* Alternate the pattern */ incr = 1; 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; } length = (end_addr - start_addr) / sizeof(ulong); end = buf + length; printf("\rPattern %08lX Writing..." "%12s" "\b\b\b\b\b\b\b\b\b\b", pattern, ""); for (addr = buf, val = pattern; addr < end; addr++) { WATCHDOG_RESET(); *addr = val; val += incr; } puts("Reading..."); for (addr = buf, val = pattern; addr < end; addr++) { WATCHDOG_RESET(); readback = *addr; if (readback != val) { ulong offset = addr - buf; printf("\nMem error @ 0x%08X: " "found %08lX, expected %08lX\n", (uint)(uintptr_t)(start_addr + offset*sizeof(vu_long)), readback, val); errs++; if (ctrlc()) return -1; } val += incr; } return 0; } /* * 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[]) { ulong start, end; vu_long *buf, *dummy; 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 const int alt_test = 0; #endif if (argc > 1) start = simple_strtoul(argv[1], NULL, 16); else start = CONFIG_SYS_MEMTEST_START; if (argc > 2) end = simple_strtoul(argv[2], NULL, 16); else end = 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; printf("Testing %08x ... %08x:\n", (uint)start, (uint)end); debug("%s:%d: start %#08lx end %#08lx\n", __func__, __LINE__, start, end); buf = map_sysmem(start, end - start); dummy = map_sysmem(CONFIG_SYS_MEMTEST_SCRATCH, sizeof(vu_long)); for (iteration = 0; !iteration_limit || iteration < iteration_limit; iteration++) { if (ctrlc()) { errs = -1UL; break; } printf("Iteration: %6d\r", iteration + 1); debug("\n"); if (alt_test) { errs = mem_test_alt(buf, start, end, dummy); } else { errs = mem_test_quick(buf, start, end, pattern, iteration); } if (errs == -1UL) break; } /* * Work-around for eldk-4.2 which gives this warning if we try to * case in the unmap_sysmem() call: * warning: initialization discards qualifiers from pointer target type */ { void *vbuf = (void *)buf; void *vdummy = (void *)dummy; unmap_sysmem(vbuf); unmap_sysmem(vdummy); } if (errs == -1UL) { /* Memory test was aborted - write a newline to finish off */ putc('\n'); ret = 1; } else { printf("Tested %d iteration(s) with %lu errors.\n", iteration, errs); ret = errs != 0; } return ret; /* not reached */ } #endif /* CONFIG_CMD_MEMTEST */ /* Modify memory. * * Syntax: * mm{.b, .w, .l, .q} {addr} * nm{.b, .w, .l, .q} {addr} */ static int mod_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const argv[]) { ulong addr; #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA u64 i; #else ulong i; #endif int nbytes, size; void *ptr = NULL; if (argc != 2) return CMD_RET_USAGE; #ifdef CONFIG_BOOT_RETRY_TIME reset_cmd_timeout(); /* got a good command to get here */ #endif /* We use the last specified parameters, unless new ones are * entered. */ addr = mm_last_addr; size = mm_last_size; if ((flag & CMD_FLAG_REPEAT) == 0) { /* New command specified. Check for a size specification. * Defaults to long if no or incorrect specification. */ if ((size = cmd_get_data_size(argv[0], 4)) < 0) return 1; /* Address is specified since argc > 1 */ addr = simple_strtoul(argv[1], NULL, 16); addr += base_address; } #ifdef CONFIG_HAS_DATAFLASH if (addr_dataflash(addr)){ puts ("Can't modify DataFlash in place. Use cp instead.\n\r"); return 0; } #endif #ifdef CONFIG_BLACKFIN if (addr_bfin_on_chip_mem(addr)) { puts ("Can't modify L1 instruction in place. Use cp instead.\n\r"); return 0; } #endif /* Print the address, followed by value. Then accept input for * the next value. A non-converted value exits. */ do { ptr = map_sysmem(addr, size); printf("%08lx:", addr); if (size == 4) printf(" %08x", *((u32 *)ptr)); #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA else if (size == 8) printf(" %016llx", *((u64 *)ptr)); #endif else if (size == 2) printf(" %04x", *((u16 *)ptr)); else printf(" %02x", *((u8 *)ptr)); nbytes = readline (" ? "); if (nbytes == 0 || (nbytes == 1 && console_buffer[0] == '-')) { /* <CR> pressed as only input, don't modify current * location and move to next. "-" pressed will go back. */ if (incrflag) addr += nbytes ? -size : size; nbytes = 1; #ifdef CONFIG_BOOT_RETRY_TIME reset_cmd_timeout(); /* good enough to not time out */ #endif } #ifdef CONFIG_BOOT_RETRY_TIME else if (nbytes == -2) { break; /* timed out, exit the command */ } #endif else { char *endp; #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA i = simple_strtoull(console_buffer, &endp, 16); #else i = simple_strtoul(console_buffer, &endp, 16); #endif nbytes = endp - console_buffer; if (nbytes) { #ifdef CONFIG_BOOT_RETRY_TIME /* good enough to not time out */ reset_cmd_timeout(); #endif if (size == 4) *((u32 *)ptr) = i; #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA else if (size == 8) *((u64 *)ptr) = i; #endif else if (size == 2) *((u16 *)ptr) = i; else *((u8 *)ptr) = i; if (incrflag) addr += size; } } } while (nbytes); if (ptr) unmap_sysmem(ptr); mm_last_addr = addr; mm_last_size = size; return 0; } #ifdef CONFIG_CMD_CRC32 static int do_mem_crc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { int flags = 0; int ac; char * const *av; if (argc < 3) return CMD_RET_USAGE; av = argv + 1; ac = argc - 1; #ifdef CONFIG_HASH_VERIFY if (strcmp(*av, "-v") == 0) { flags |= HASH_FLAG_VERIFY; av++; ac--; } #endif return hash_command("crc32", flags, cmdtp, flag, ac, av); } #endif /**************************************************/ U_BOOT_CMD( md, 3, 1, do_mem_md, "memory display", #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA "[.b, .w, .l, .q] address [# of objects]" #else "[.b, .w, .l] address [# of objects]" #endif ); U_BOOT_CMD( mm, 2, 1, do_mem_mm, "memory modify (auto-incrementing address)", #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA "[.b, .w, .l, .q] address" #else "[.b, .w, .l] address" #endif ); U_BOOT_CMD( nm, 2, 1, do_mem_nm, "memory modify (constant address)", #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA "[.b, .w, .l, .q] address" #else "[.b, .w, .l] address" #endif ); U_BOOT_CMD( mw, 4, 1, do_mem_mw, "memory write (fill)", #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA "[.b, .w, .l, .q] address value [count]" #else "[.b, .w, .l] address value [count]" #endif ); U_BOOT_CMD( cp, 4, 1, do_mem_cp, "memory copy", #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA "[.b, .w, .l, .q] source target count" #else "[.b, .w, .l] source target count" #endif ); U_BOOT_CMD( cmp, 4, 1, do_mem_cmp, "memory compare", #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA "[.b, .w, .l, .q] addr1 addr2 count" #else "[.b, .w, .l] addr1 addr2 count" #endif ); #ifdef CONFIG_CMD_CRC32 #ifndef CONFIG_CRC32_VERIFY U_BOOT_CMD( crc32, 4, 1, do_mem_crc, "checksum calculation", "address count [addr]\n - compute CRC32 checksum [save at addr]" ); #else /* CONFIG_CRC32_VERIFY */ U_BOOT_CMD( crc32, 5, 1, do_mem_crc, "checksum calculation", "address count [addr]\n - compute CRC32 checksum [save at addr]\n" "-v address count crc\n - verify crc of memory area" ); #endif /* CONFIG_CRC32_VERIFY */ #endif #ifdef CONFIG_CMD_MEMINFO __weak void board_show_dram(ulong size) { puts("DRAM: "); print_size(size, "\n"); } static int do_mem_info(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { board_show_dram(gd->ram_size); return 0; } #endif U_BOOT_CMD( base, 2, 1, do_mem_base, "print or set address offset", "\n - print address offset for memory commands\n" "base off\n - set address offset for memory commands to 'off'" ); U_BOOT_CMD( loop, 3, 1, do_mem_loop, "infinite loop on address range", #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA "[.b, .w, .l, .q] address number_of_objects" #else "[.b, .w, .l] address number_of_objects" #endif ); #ifdef CONFIG_LOOPW U_BOOT_CMD( loopw, 4, 1, do_mem_loopw, "infinite write loop on address range", #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA "[.b, .w, .l, .q] address number_of_objects data_to_write" #else "[.b, .w, .l] address number_of_objects data_to_write" #endif ); #endif /* CONFIG_LOOPW */ #ifdef CONFIG_CMD_MEMTEST U_BOOT_CMD( mtest, 5, 1, do_mem_mtest, "simple RAM read/write test", "[start [end [pattern [iterations]]]]" ); #endif /* CONFIG_CMD_MEMTEST */ #ifdef CONFIG_MX_CYCLIC U_BOOT_CMD( mdc, 4, 1, do_mem_mdc, "memory display cyclic", #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA "[.b, .w, .l, .q] address count delay(ms)" #else "[.b, .w, .l] address count delay(ms)" #endif ); U_BOOT_CMD( mwc, 4, 1, do_mem_mwc, "memory write cyclic", #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA "[.b, .w, .l, .q] address value delay(ms)" #else "[.b, .w, .l] address value delay(ms)" #endif ); #endif /* CONFIG_MX_CYCLIC */ #ifdef CONFIG_CMD_MEMINFO U_BOOT_CMD( meminfo, 3, 1, do_mem_info, "display memory information", "" ); #endif