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c1e0b0e114
Supported memory commands are: rw and md. - rw: for read/write a word - md: for memory display Usage: rw addr [value] Usage: md addr [num of words (4B)] BRANCH=none BUG=none TEST="make BOARD=cr50" and "md 0 100" > md 0 100 [00000000] : 00018000 0000011d 00000101 00000101 [00000010] : 00000101 00000101 00000101 00000101 ... Signed-off-by: Sheng-Liang Song <ssl@chromium.org> Change-Id: I1de8c690cca006ec3aae42d4e6bd0ba30f7c3238 Reviewed-on: https://chromium-review.googlesource.com/231398 Reviewed-by: Bill Richardson <wfrichar@chromium.org>
83 lines
1.6 KiB
C
83 lines
1.6 KiB
C
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* System module for Chrome EC */
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#include "console.h"
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#include "util.h"
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static int command_mem_dump(int argc, char **argv)
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{
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volatile uint32_t *address;
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uint32_t value, num = 1, i;
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char *e;
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if (argc < 2)
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return EC_ERROR_PARAM_COUNT;
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address = (uint32_t *)(uintptr_t)strtoi(argv[1], &e, 0);
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if (*e)
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return EC_ERROR_PARAM1;
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if (argc >= 3)
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num = strtoi(argv[2], &e, 0);
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for (i = 0; i < num; i++) {
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value = address[i];
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if (0 == (i%4))
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ccprintf("\n%08X: %08x", address+i, value);
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else
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ccprintf(" %08x", value);
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cflush();
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}
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ccprintf("\n");
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cflush();
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return EC_SUCCESS;
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}
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DECLARE_CONSOLE_COMMAND(md, command_mem_dump,
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"addr [num]",
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"dump num of words (4B) in memory",
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NULL);
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static int command_read_word(int argc, char **argv)
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{
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volatile uint32_t *address;
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uint32_t value;
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char *e;
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if (argc < 2)
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return EC_ERROR_PARAM_COUNT;
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address = (uint32_t *)(uintptr_t)strtoi(argv[1], &e, 0);
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if (*e)
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return EC_ERROR_PARAM1;
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/* Just reading? */
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if (argc < 3) {
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value = *address;
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ccprintf("read 0x%p = 0x%08x\n", address, value);
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return EC_SUCCESS;
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}
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/* Writing! */
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value = strtoi(argv[2], &e, 0);
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if (*e)
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return EC_ERROR_PARAM2;
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ccprintf("write 0x%p = 0x%08x\n", address, value);
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cflush(); /* Flush before writing in case this crashes */
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*address = value;
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return EC_SUCCESS;
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}
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DECLARE_CONSOLE_COMMAND(rw, command_read_word,
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"addr [value]",
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"Read or write a word in memory",
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NULL);
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