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![Simon Glass](/assets/img/avatar_default.png)
At present these values are open-coded in a few places. Add constants so the meaning is clear. Also add a comment to cmd_get_data_size() Signed-off-by: Simon Glass <sjg@chromium.org>
1456 lines
32 KiB
C
1456 lines
32 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2000
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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/*
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* Memory Functions
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*
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* Copied from FADS ROM, Dan Malek (dmalek@jlc.net)
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*/
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#include <common.h>
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#include <console.h>
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#include <bootretry.h>
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#include <cli.h>
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#include <command.h>
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#include <console.h>
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#include <flash.h>
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#include <hash.h>
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#include <log.h>
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#include <mapmem.h>
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#include <rand.h>
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#include <watchdog.h>
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#include <asm/io.h>
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#include <linux/bitops.h>
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#include <linux/compiler.h>
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#include <linux/ctype.h>
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#include <linux/delay.h>
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DECLARE_GLOBAL_DATA_PTR;
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/* Create a compile-time value */
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#ifdef MEM_SUPPORT_64BIT_DATA
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#define SUPPORT_64BIT_DATA 1
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#define HELP_Q ", .q"
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#else
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#define SUPPORT_64BIT_DATA 0
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#define HELP_Q ""
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#endif
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static int mod_mem(struct cmd_tbl *, int, int, int, char * const []);
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/* Display values from last command.
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* Memory modify remembered values are different from display memory.
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*/
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static ulong dp_last_addr, dp_last_size;
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static ulong dp_last_length = 0x40;
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static ulong mm_last_addr, mm_last_size;
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static ulong base_address = 0;
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#ifdef CONFIG_CMD_MEM_SEARCH
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static ulong dp_last_ms_length;
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static u8 search_buf[64];
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static uint search_len;
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#endif
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/* Memory Display
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*
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* Syntax:
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* md{.b, .w, .l, .q} {addr} {len}
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*/
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#define DISP_LINE_LEN 16
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static int do_mem_md(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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ulong addr, length, bytes;
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const void *buf;
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int size;
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int rc = 0;
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/* We use the last specified parameters, unless new ones are
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* entered.
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*/
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addr = dp_last_addr;
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size = dp_last_size;
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length = dp_last_length;
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if (argc < 2)
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return CMD_RET_USAGE;
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if ((flag & CMD_FLAG_REPEAT) == 0) {
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/* New command specified. Check for a size specification.
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* Defaults to long if no or incorrect specification.
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*/
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if ((size = cmd_get_data_size(argv[0], 4)) < 0)
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return 1;
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/* Address is specified since argc > 1
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*/
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addr = simple_strtoul(argv[1], NULL, 16);
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addr += base_address;
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/* If another parameter, it is the length to display.
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* Length is the number of objects, not number of bytes.
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*/
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if (argc > 2)
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length = simple_strtoul(argv[2], NULL, 16);
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}
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bytes = size * length;
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buf = map_sysmem(addr, bytes);
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/* Print the lines. */
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print_buffer(addr, buf, size, length, DISP_LINE_LEN / size);
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addr += bytes;
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unmap_sysmem(buf);
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dp_last_addr = addr;
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dp_last_length = length;
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dp_last_size = size;
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return (rc);
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}
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static int do_mem_mm(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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return mod_mem (cmdtp, 1, flag, argc, argv);
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}
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static int do_mem_nm(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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return mod_mem (cmdtp, 0, flag, argc, argv);
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}
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static int do_mem_mw(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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ulong writeval; /* 64-bit if SUPPORT_64BIT_DATA */
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ulong addr, count;
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int size;
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void *buf, *start;
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ulong bytes;
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if ((argc < 3) || (argc > 4))
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return CMD_RET_USAGE;
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/* Check for size specification.
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*/
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if ((size = cmd_get_data_size(argv[0], 4)) < 1)
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return 1;
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/* Address is specified since argc > 1
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*/
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addr = simple_strtoul(argv[1], NULL, 16);
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addr += base_address;
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/* Get the value to write.
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*/
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if (SUPPORT_64BIT_DATA)
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writeval = simple_strtoull(argv[2], NULL, 16);
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else
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writeval = simple_strtoul(argv[2], NULL, 16);
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/* Count ? */
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if (argc == 4) {
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count = simple_strtoul(argv[3], NULL, 16);
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} else {
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count = 1;
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}
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bytes = size * count;
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start = map_sysmem(addr, bytes);
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buf = start;
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while (count-- > 0) {
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if (size == 4)
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*((u32 *)buf) = (u32)writeval;
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else if (SUPPORT_64BIT_DATA && size == 8)
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*((ulong *)buf) = writeval;
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else if (size == 2)
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*((u16 *)buf) = (u16)writeval;
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else
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*((u8 *)buf) = (u8)writeval;
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buf += size;
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}
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unmap_sysmem(start);
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return 0;
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}
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#ifdef CONFIG_CMD_MX_CYCLIC
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static int do_mem_mdc(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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int i;
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ulong count;
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if (argc < 4)
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return CMD_RET_USAGE;
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count = simple_strtoul(argv[3], NULL, 10);
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for (;;) {
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do_mem_md (NULL, 0, 3, argv);
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/* delay for <count> ms... */
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for (i=0; i<count; i++)
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udelay(1000);
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/* check for ctrl-c to abort... */
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if (ctrlc()) {
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puts("Abort\n");
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return 0;
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}
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}
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return 0;
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}
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static int do_mem_mwc(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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int i;
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ulong count;
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if (argc < 4)
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return CMD_RET_USAGE;
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count = simple_strtoul(argv[3], NULL, 10);
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for (;;) {
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do_mem_mw (NULL, 0, 3, argv);
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/* delay for <count> ms... */
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for (i=0; i<count; i++)
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udelay(1000);
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/* check for ctrl-c to abort... */
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if (ctrlc()) {
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puts("Abort\n");
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return 0;
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}
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}
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return 0;
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}
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#endif /* CONFIG_CMD_MX_CYCLIC */
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static int do_mem_cmp(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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ulong addr1, addr2, count, ngood, bytes;
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int size;
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int rcode = 0;
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const char *type;
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const void *buf1, *buf2, *base;
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ulong word1, word2; /* 64-bit if SUPPORT_64BIT_DATA */
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if (argc != 4)
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return CMD_RET_USAGE;
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/* Check for size specification.
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*/
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if ((size = cmd_get_data_size(argv[0], 4)) < 0)
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return 1;
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type = size == 8 ? "double word" :
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size == 4 ? "word" :
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size == 2 ? "halfword" : "byte";
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addr1 = simple_strtoul(argv[1], NULL, 16);
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addr1 += base_address;
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addr2 = simple_strtoul(argv[2], NULL, 16);
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addr2 += base_address;
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count = simple_strtoul(argv[3], NULL, 16);
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bytes = size * count;
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base = buf1 = map_sysmem(addr1, bytes);
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buf2 = map_sysmem(addr2, bytes);
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for (ngood = 0; ngood < count; ++ngood) {
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if (size == 4) {
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word1 = *(u32 *)buf1;
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word2 = *(u32 *)buf2;
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} else if (SUPPORT_64BIT_DATA && size == 8) {
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word1 = *(ulong *)buf1;
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word2 = *(ulong *)buf2;
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} else if (size == 2) {
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word1 = *(u16 *)buf1;
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word2 = *(u16 *)buf2;
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} else {
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word1 = *(u8 *)buf1;
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word2 = *(u8 *)buf2;
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}
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if (word1 != word2) {
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ulong offset = buf1 - base;
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printf("%s at 0x%08lx (%#0*lx) != %s at 0x%08lx (%#0*lx)\n",
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type, (ulong)(addr1 + offset), size, word1,
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type, (ulong)(addr2 + offset), size, word2);
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rcode = 1;
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break;
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}
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buf1 += size;
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buf2 += size;
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/* reset watchdog from time to time */
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if ((ngood % (64 << 10)) == 0)
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WATCHDOG_RESET();
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}
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unmap_sysmem(buf1);
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unmap_sysmem(buf2);
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printf("Total of %ld %s(s) were the same\n", ngood, type);
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return rcode;
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}
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static int do_mem_cp(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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ulong addr, dest, count;
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void *src, *dst;
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int size;
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if (argc != 4)
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return CMD_RET_USAGE;
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/* Check for size specification.
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*/
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if ((size = cmd_get_data_size(argv[0], 4)) < 0)
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return 1;
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addr = simple_strtoul(argv[1], NULL, 16);
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addr += base_address;
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dest = simple_strtoul(argv[2], NULL, 16);
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dest += base_address;
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count = simple_strtoul(argv[3], NULL, 16);
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if (count == 0) {
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puts ("Zero length ???\n");
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return 1;
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}
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src = map_sysmem(addr, count * size);
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dst = map_sysmem(dest, count * size);
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#ifdef CONFIG_MTD_NOR_FLASH
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/* check if we are copying to Flash */
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if (addr2info((ulong)dst)) {
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int rc;
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puts ("Copy to Flash... ");
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rc = flash_write((char *)src, (ulong)dst, count * size);
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if (rc != 0) {
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flash_perror(rc);
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unmap_sysmem(src);
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unmap_sysmem(dst);
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return (1);
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}
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puts ("done\n");
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unmap_sysmem(src);
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unmap_sysmem(dst);
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return 0;
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}
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#endif
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memcpy(dst, src, count * size);
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unmap_sysmem(src);
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unmap_sysmem(dst);
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return 0;
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}
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#ifdef CONFIG_CMD_MEM_SEARCH
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static int do_mem_search(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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ulong addr, length, bytes, offset;
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u8 *ptr, *end, *buf;
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bool quiet = false;
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ulong last_pos; /* Offset of last match in 'size' units*/
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ulong last_addr; /* Address of last displayed line */
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int limit = 10;
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int used_len;
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int count;
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int size;
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int i;
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/* We use the last specified parameters, unless new ones are entered */
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addr = dp_last_addr;
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size = dp_last_size;
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length = dp_last_ms_length;
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if (argc < 3)
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return CMD_RET_USAGE;
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if (!(flag & CMD_FLAG_REPEAT)) {
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/*
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* Check for a size specification.
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* Defaults to long if no or incorrect specification.
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*/
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size = cmd_get_data_size(argv[0], 4);
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if (size < 0 && size != CMD_DATA_SIZE_STR)
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return 1;
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argc--;
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argv++;
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while (argc && *argv[0] == '-') {
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int ch = argv[0][1];
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if (ch == 'q')
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quiet = true;
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else if (ch == 'l' && isxdigit(argv[0][2]))
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limit = simple_strtoul(argv[0] + 2, NULL, 16);
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else
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return CMD_RET_USAGE;
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argc--;
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argv++;
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}
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/* Address is specified since argc > 1 */
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addr = simple_strtoul(argv[0], NULL, 16);
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addr += base_address;
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/* Length is the number of objects, not number of bytes */
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length = simple_strtoul(argv[1], NULL, 16);
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/* Read the bytes to search for */
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end = search_buf + sizeof(search_buf);
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for (i = 2, ptr = search_buf; i < argc && ptr < end; i++) {
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if (MEM_SUPPORT_64BIT_DATA && size == 8) {
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u64 val = simple_strtoull(argv[i], NULL, 16);
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*(u64 *)ptr = val;
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} else if (size == -2) { /* string */
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int len = min(strlen(argv[i]),
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(size_t)(end - ptr));
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memcpy(ptr, argv[i], len);
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ptr += len;
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continue;
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} else {
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u32 val = simple_strtoul(argv[i], NULL, 16);
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switch (size) {
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case 1:
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*ptr = val;
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break;
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case 2:
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*(u16 *)ptr = val;
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break;
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case 4:
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*(u32 *)ptr = val;
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break;
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}
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}
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ptr += size;
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}
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search_len = ptr - search_buf;
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}
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/* Do the search */
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if (size == -2)
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size = 1;
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bytes = size * length;
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buf = map_sysmem(addr, bytes);
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last_pos = 0;
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last_addr = 0;
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count = 0;
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for (offset = 0;
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offset < bytes && offset <= bytes - search_len && count < limit;
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offset += size) {
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void *ptr = buf + offset;
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if (!memcmp(ptr, search_buf, search_len)) {
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uint align = (addr + offset) & 0xf;
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ulong match = addr + offset;
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if (!count || (last_addr & ~0xf) != (match & ~0xf)) {
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if (!quiet) {
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if (count)
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printf("--\n");
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print_buffer(match - align, ptr - align,
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size,
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ALIGN(search_len + align,
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16) / size, 0);
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}
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last_addr = match;
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last_pos = offset / size;
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}
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count++;
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}
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}
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if (!quiet) {
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printf("%d match%s", count, count == 1 ? "" : "es");
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if (count == limit)
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printf(" (repeat command to check for more)");
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printf("\n");
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}
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env_set_hex("memmatches", count);
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env_set_hex("memaddr", last_addr);
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env_set_hex("mempos", last_pos);
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unmap_sysmem(buf);
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used_len = offset / size;
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dp_last_addr = addr + used_len;
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dp_last_size = size;
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dp_last_ms_length = length < used_len ? 0 : length - used_len;
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return count ? 0 : CMD_RET_FAILURE;
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}
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#endif
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static int do_mem_base(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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if (argc > 1) {
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/* Set new base address.
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*/
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base_address = simple_strtoul(argv[1], NULL, 16);
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}
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/* Print the current base address.
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*/
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printf("Base Address: 0x%08lx\n", base_address);
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return 0;
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}
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static int do_mem_loop(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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ulong addr, length, i, bytes;
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int size;
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volatile ulong *llp; /* 64-bit if SUPPORT_64BIT_DATA */
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volatile u32 *longp;
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volatile u16 *shortp;
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volatile u8 *cp;
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const void *buf;
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if (argc < 3)
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return CMD_RET_USAGE;
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/*
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* Check for a size specification.
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* Defaults to long if no or incorrect specification.
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*/
|
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if ((size = cmd_get_data_size(argv[0], 4)) < 0)
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return 1;
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/* Address is always specified.
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*/
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addr = simple_strtoul(argv[1], NULL, 16);
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|
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/* Length is the number of objects, not number of bytes.
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*/
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length = simple_strtoul(argv[2], NULL, 16);
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bytes = size * length;
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buf = map_sysmem(addr, bytes);
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/* We want to optimize the loops to run as fast as possible.
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* If we have only one object, just run infinite loops.
|
|
*/
|
|
if (length == 1) {
|
|
if (SUPPORT_64BIT_DATA && size == 8) {
|
|
llp = (ulong *)buf;
|
|
for (;;)
|
|
i = *llp;
|
|
}
|
|
if (size == 4) {
|
|
longp = (u32 *)buf;
|
|
for (;;)
|
|
i = *longp;
|
|
}
|
|
if (size == 2) {
|
|
shortp = (u16 *)buf;
|
|
for (;;)
|
|
i = *shortp;
|
|
}
|
|
cp = (u8 *)buf;
|
|
for (;;)
|
|
i = *cp;
|
|
}
|
|
|
|
if (SUPPORT_64BIT_DATA && size == 8) {
|
|
for (;;) {
|
|
llp = (ulong *)buf;
|
|
i = length;
|
|
while (i-- > 0)
|
|
*llp++;
|
|
}
|
|
}
|
|
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
|
|
static int do_mem_loopw(struct cmd_tbl *cmdtp, int flag, int argc,
|
|
char *const argv[])
|
|
{
|
|
ulong addr, length, i, bytes;
|
|
int size;
|
|
volatile ulong *llp; /* 64-bit if SUPPORT_64BIT_DATA */
|
|
ulong data; /* 64-bit if SUPPORT_64BIT_DATA */
|
|
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 */
|
|
if (SUPPORT_64BIT_DATA)
|
|
data = simple_strtoull(argv[3], NULL, 16);
|
|
else
|
|
data = simple_strtoul(argv[3], 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) {
|
|
if (SUPPORT_64BIT_DATA && size == 8) {
|
|
llp = (ulong *)buf;
|
|
for (;;)
|
|
*llp = data;
|
|
}
|
|
if (size == 4) {
|
|
longp = (u32 *)buf;
|
|
for (;;)
|
|
*longp = data;
|
|
}
|
|
if (size == 2) {
|
|
shortp = (u16 *)buf;
|
|
for (;;)
|
|
*shortp = data;
|
|
}
|
|
cp = (u8 *)buf;
|
|
for (;;)
|
|
*cp = data;
|
|
}
|
|
|
|
if (SUPPORT_64BIT_DATA && size == 8) {
|
|
for (;;) {
|
|
llp = (ulong *)buf;
|
|
i = length;
|
|
while (i-- > 0)
|
|
*llp++ = data;
|
|
}
|
|
}
|
|
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 errs;
|
|
}
|
|
|
|
static int compare_regions(volatile unsigned long *bufa,
|
|
volatile unsigned long *bufb, size_t count)
|
|
{
|
|
volatile unsigned long *p1 = bufa;
|
|
volatile unsigned long *p2 = bufb;
|
|
int errs = 0;
|
|
size_t i;
|
|
|
|
for (i = 0; i < count; i++, p1++, p2++) {
|
|
if (*p1 != *p2) {
|
|
printf("FAILURE: 0x%08lx != 0x%08lx (delta=0x%08lx -> bit %ld) at offset 0x%08lx\n",
|
|
(unsigned long)*p1, (unsigned long)*p2,
|
|
*p1 ^ *p2, __ffs(*p1 ^ *p2),
|
|
(unsigned long)(i * sizeof(unsigned long)));
|
|
errs++;
|
|
}
|
|
}
|
|
|
|
return errs;
|
|
}
|
|
|
|
static ulong test_bitflip_comparison(volatile unsigned long *bufa,
|
|
volatile unsigned long *bufb, size_t count)
|
|
{
|
|
volatile unsigned long *p1 = bufa;
|
|
volatile unsigned long *p2 = bufb;
|
|
unsigned int j, k;
|
|
unsigned long q;
|
|
size_t i;
|
|
int max;
|
|
int errs = 0;
|
|
|
|
max = sizeof(unsigned long) * 8;
|
|
for (k = 0; k < max; k++) {
|
|
q = 0x00000001L << k;
|
|
for (j = 0; j < 8; j++) {
|
|
WATCHDOG_RESET();
|
|
q = ~q;
|
|
p1 = (volatile unsigned long *)bufa;
|
|
p2 = (volatile unsigned long *)bufb;
|
|
for (i = 0; i < count; i++)
|
|
*p1++ = *p2++ = (i % 2) == 0 ? q : ~q;
|
|
|
|
errs += compare_regions(bufa, bufb, count);
|
|
}
|
|
|
|
if (ctrlc())
|
|
return -1UL;
|
|
}
|
|
|
|
return errs;
|
|
}
|
|
|
|
static ulong mem_test_bitflip(vu_long *buf, ulong start, ulong end)
|
|
{
|
|
/*
|
|
* Split the specified range into two halves.
|
|
* Note that mtest range is inclusive of start,end.
|
|
* Bitflip test instead uses a count (of 32-bit words).
|
|
*/
|
|
ulong half_size = (end - start + 1) / 2 / sizeof(unsigned long);
|
|
|
|
return test_bitflip_comparison(buf, buf + half_size, half_size);
|
|
}
|
|
|
|
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 errs;
|
|
}
|
|
|
|
/*
|
|
* 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(struct cmd_tbl *cmdtp, int flag, int argc,
|
|
char *const argv[])
|
|
{
|
|
ulong start, end;
|
|
vu_long scratch_space;
|
|
vu_long *buf, *dummy = &scratch_space;
|
|
ulong iteration_limit = 0;
|
|
ulong count = 0;
|
|
ulong errs = 0; /* number of errors, or -1 if interrupted */
|
|
ulong pattern = 0;
|
|
int iteration;
|
|
|
|
start = CONFIG_SYS_MEMTEST_START;
|
|
end = CONFIG_SYS_MEMTEST_END;
|
|
|
|
if (argc > 1)
|
|
if (strict_strtoul(argv[1], 16, &start) < 0)
|
|
return CMD_RET_USAGE;
|
|
|
|
if (argc > 2)
|
|
if (strict_strtoul(argv[2], 16, &end) < 0)
|
|
return CMD_RET_USAGE;
|
|
|
|
if (argc > 3)
|
|
if (strict_strtoul(argv[3], 16, &pattern) < 0)
|
|
return CMD_RET_USAGE;
|
|
|
|
if (argc > 4)
|
|
if (strict_strtoul(argv[4], 16, &iteration_limit) < 0)
|
|
return CMD_RET_USAGE;
|
|
|
|
if (end < start) {
|
|
printf("Refusing to do empty test\n");
|
|
return -1;
|
|
}
|
|
|
|
printf("Testing %08lx ... %08lx:\n", start, end);
|
|
debug("%s:%d: start %#08lx end %#08lx\n", __func__, __LINE__,
|
|
start, end);
|
|
|
|
buf = map_sysmem(start, end - start);
|
|
for (iteration = 0;
|
|
!iteration_limit || iteration < iteration_limit;
|
|
iteration++) {
|
|
if (ctrlc()) {
|
|
errs = -1UL;
|
|
break;
|
|
}
|
|
|
|
printf("Iteration: %6d\r", iteration + 1);
|
|
debug("\n");
|
|
if (IS_ENABLED(CONFIG_SYS_ALT_MEMTEST)) {
|
|
errs = mem_test_alt(buf, start, end, dummy);
|
|
if (errs == -1UL)
|
|
break;
|
|
if (IS_ENABLED(CONFIG_SYS_ALT_MEMTEST_BITFLIP)) {
|
|
count += errs;
|
|
errs = mem_test_bitflip(buf, start, end);
|
|
}
|
|
} else {
|
|
errs = mem_test_quick(buf, start, end, pattern,
|
|
iteration);
|
|
}
|
|
if (errs == -1UL)
|
|
break;
|
|
count += errs;
|
|
}
|
|
|
|
unmap_sysmem((void *)buf);
|
|
|
|
if (errs == -1UL) {
|
|
/* Memory test was aborted - write a newline to finish off */
|
|
putc('\n');
|
|
}
|
|
printf("Tested %d iteration(s) with %lu errors.\n", iteration, count);
|
|
|
|
return errs != 0;
|
|
}
|
|
#endif /* CONFIG_CMD_MEMTEST */
|
|
|
|
/* Modify memory.
|
|
*
|
|
* Syntax:
|
|
* mm{.b, .w, .l, .q} {addr}
|
|
*/
|
|
static int
|
|
mod_mem(struct cmd_tbl *cmdtp, int incrflag, int flag, int argc,
|
|
char *const argv[])
|
|
{
|
|
ulong addr;
|
|
ulong i; /* 64-bit if SUPPORT_64BIT_DATA */
|
|
int nbytes, size;
|
|
void *ptr = NULL;
|
|
|
|
if (argc != 2)
|
|
return CMD_RET_USAGE;
|
|
|
|
bootretry_reset_cmd_timeout(); /* got a good command to get here */
|
|
/* 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;
|
|
}
|
|
|
|
/* 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));
|
|
else if (SUPPORT_64BIT_DATA && size == 8)
|
|
printf(" %0lx", *((ulong *)ptr));
|
|
else if (size == 2)
|
|
printf(" %04x", *((u16 *)ptr));
|
|
else
|
|
printf(" %02x", *((u8 *)ptr));
|
|
|
|
nbytes = cli_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;
|
|
/* good enough to not time out */
|
|
bootretry_reset_cmd_timeout();
|
|
}
|
|
#ifdef CONFIG_BOOT_RETRY_TIME
|
|
else if (nbytes == -2) {
|
|
break; /* timed out, exit the command */
|
|
}
|
|
#endif
|
|
else {
|
|
char *endp;
|
|
if (SUPPORT_64BIT_DATA)
|
|
i = simple_strtoull(console_buffer, &endp, 16);
|
|
else
|
|
i = simple_strtoul(console_buffer, &endp, 16);
|
|
nbytes = endp - console_buffer;
|
|
if (nbytes) {
|
|
/* good enough to not time out
|
|
*/
|
|
bootretry_reset_cmd_timeout();
|
|
if (size == 4)
|
|
*((u32 *)ptr) = i;
|
|
else if (SUPPORT_64BIT_DATA && size == 8)
|
|
*((ulong *)ptr) = i;
|
|
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(struct cmd_tbl *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_CRC32_VERIFY
|
|
if (strcmp(*av, "-v") == 0) {
|
|
flags |= HASH_FLAG_VERIFY | HASH_FLAG_ENV;
|
|
av++;
|
|
ac--;
|
|
}
|
|
#endif
|
|
|
|
return hash_command("crc32", flags, cmdtp, flag, ac, av);
|
|
}
|
|
|
|
#endif
|
|
|
|
#ifdef CONFIG_CMD_RANDOM
|
|
static int do_random(struct cmd_tbl *cmdtp, int flag, int argc,
|
|
char *const argv[])
|
|
{
|
|
unsigned long addr, len;
|
|
unsigned long seed; // NOT INITIALIZED ON PURPOSE
|
|
unsigned int *buf, *start;
|
|
unsigned char *buf8;
|
|
unsigned int i;
|
|
|
|
if (argc < 3 || argc > 4)
|
|
return CMD_RET_USAGE;
|
|
|
|
len = simple_strtoul(argv[2], NULL, 16);
|
|
addr = simple_strtoul(argv[1], NULL, 16);
|
|
|
|
if (argc == 4) {
|
|
seed = simple_strtoul(argv[3], NULL, 16);
|
|
if (seed == 0) {
|
|
printf("The seed cannot be 0. Using 0xDEADBEEF.\n");
|
|
seed = 0xDEADBEEF;
|
|
}
|
|
} else {
|
|
seed = get_timer(0) ^ rand();
|
|
}
|
|
|
|
srand(seed);
|
|
start = map_sysmem(addr, len);
|
|
buf = start;
|
|
for (i = 0; i < (len / 4); i++)
|
|
*buf++ = rand();
|
|
|
|
buf8 = (unsigned char *)buf;
|
|
for (i = 0; i < (len % 4); i++)
|
|
*buf8++ = rand() & 0xFF;
|
|
|
|
unmap_sysmem(start);
|
|
printf("%lu bytes filled with random data\n", len);
|
|
|
|
return CMD_RET_SUCCESS;
|
|
}
|
|
#endif
|
|
|
|
/**************************************************/
|
|
U_BOOT_CMD(
|
|
md, 3, 1, do_mem_md,
|
|
"memory display",
|
|
"[.b, .w, .l" HELP_Q "] address [# of objects]"
|
|
);
|
|
|
|
|
|
U_BOOT_CMD(
|
|
mm, 2, 1, do_mem_mm,
|
|
"memory modify (auto-incrementing address)",
|
|
"[.b, .w, .l" HELP_Q "] address"
|
|
);
|
|
|
|
|
|
U_BOOT_CMD(
|
|
nm, 2, 1, do_mem_nm,
|
|
"memory modify (constant address)",
|
|
"[.b, .w, .l" HELP_Q "] address"
|
|
);
|
|
|
|
U_BOOT_CMD(
|
|
mw, 4, 1, do_mem_mw,
|
|
"memory write (fill)",
|
|
"[.b, .w, .l" HELP_Q "] address value [count]"
|
|
);
|
|
|
|
U_BOOT_CMD(
|
|
cp, 4, 1, do_mem_cp,
|
|
"memory copy",
|
|
"[.b, .w, .l" HELP_Q "] source target count"
|
|
);
|
|
|
|
U_BOOT_CMD(
|
|
cmp, 4, 1, do_mem_cmp,
|
|
"memory compare",
|
|
"[.b, .w, .l" HELP_Q "] addr1 addr2 count"
|
|
);
|
|
|
|
#ifdef CONFIG_CMD_MEM_SEARCH
|
|
/**************************************************/
|
|
U_BOOT_CMD(
|
|
ms, 255, 1, do_mem_search,
|
|
"memory search",
|
|
"[.b, .w, .l" HELP_Q ", .s] [-q | -<n>] address #-of-objects <value>..."
|
|
" -q = quiet, -l<val> = match limit"
|
|
);
|
|
#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
|
|
static int do_mem_info(struct cmd_tbl *cmdtp, int flag, int argc,
|
|
char *const argv[])
|
|
{
|
|
puts("DRAM: ");
|
|
print_size(gd->ram_size, "\n");
|
|
|
|
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",
|
|
"[.b, .w, .l" HELP_Q "] address number_of_objects"
|
|
);
|
|
|
|
#ifdef CONFIG_LOOPW
|
|
U_BOOT_CMD(
|
|
loopw, 4, 1, do_mem_loopw,
|
|
"infinite write loop on address range",
|
|
"[.b, .w, .l" HELP_Q "] address number_of_objects data_to_write"
|
|
);
|
|
#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_CMD_MX_CYCLIC
|
|
U_BOOT_CMD(
|
|
mdc, 4, 1, do_mem_mdc,
|
|
"memory display cyclic",
|
|
"[.b, .w, .l" HELP_Q "] address count delay(ms)"
|
|
);
|
|
|
|
U_BOOT_CMD(
|
|
mwc, 4, 1, do_mem_mwc,
|
|
"memory write cyclic",
|
|
"[.b, .w, .l" HELP_Q "] address value delay(ms)"
|
|
);
|
|
#endif /* CONFIG_CMD_MX_CYCLIC */
|
|
|
|
#ifdef CONFIG_CMD_MEMINFO
|
|
U_BOOT_CMD(
|
|
meminfo, 3, 1, do_mem_info,
|
|
"display memory information",
|
|
""
|
|
);
|
|
#endif
|
|
|
|
#ifdef CONFIG_CMD_RANDOM
|
|
U_BOOT_CMD(
|
|
random, 4, 0, do_random,
|
|
"fill memory with random pattern",
|
|
"<addr> <len> [<seed>]\n"
|
|
" - Fill 'len' bytes of memory starting at 'addr' with random data\n"
|
|
);
|
|
#endif
|