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stm32mon: Add offset/length parameter to read/write a particular memory region

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Use that option to read a particular portion of the flash

BUG=None
BRANCH=none
TEST=Check data retrieved is correct.

Change-Id: Ib2bc98aa7352515c2e651443f322dd0250c72cdd
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/260886
Reviewed-by: Alexandru M Stan <amstan@chromium.org>
This commit is contained in:
Gwendal Grignou
2015-03-13 16:09:24 -07:00
committed by chrome-bot
parent 09a7fa4aef
commit cc8fd2386f
1 changed files with 33 additions and 24 deletions
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57
util/stm32mon.c
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@@ -68,23 +68,22 @@
struct stm32_def {
uint16_t id;
const char *name;
uint32_t flash_start;
uint32_t flash_size;
uint32_t page_size;
uint32_t cmds_len[2];
} chip_defs[] = {
{0x416, "STM32L15xxB", 0x08000000, 0x20000, 256, {13, 13} },
{0x429, "STM32L15xxB-A", 0x08000000, 0x20000, 256, {13, 13} },
{0x427, "STM32L15xxC", 0x08000000, 0x40000, 256, {13, 13} },
{0x435, "STM32L44xx", 0x08000000, 0x40000, 2048, {13, 13} },
{0x420, "STM32F100xx", 0x08000000, 0x20000, 1024, {13, 13} },
{0x410, "STM32F102R8", 0x08000000, 0x10000, 1024, {13, 13} },
{0x440, "STM32F05x", 0x08000000, 0x10000, 1024, {13, 13} },
{0x444, "STM32F03x", 0x08000000, 0x08000, 1024, {13, 13} },
{0x448, "STM32F07xB", 0x08000000, 0x20000, 2048, {13, 13} },
{0x432, "STM32F37xx", 0x08000000, 0x40000, 2048, {13, 13} },
{0x442, "STM32F09x", 0x08000000, 0x40000, 2048, {13, 13} },
{0x431, "STM32F411", 0x08000000, 0x80000, 16384, {13, 19} },
{0x416, "STM32L15xxB", 0x20000, 256, {13, 13} },
{0x429, "STM32L15xxB-A", 0x20000, 256, {13, 13} },
{0x427, "STM32L15xxC", 0x40000, 256, {13, 13} },
{0x435, "STM32L44xx", 0x40000, 2048, {13, 13} },
{0x420, "STM32F100xx", 0x20000, 1024, {13, 13} },
{0x410, "STM32F102R8", 0x10000, 1024, {13, 13} },
{0x440, "STM32F05x", 0x10000, 1024, {13, 13} },
{0x444, "STM32F03x", 0x08000, 1024, {13, 13} },
{0x448, "STM32F07xB", 0x20000, 2048, {13, 13} },
{0x432, "STM32F37xx", 0x40000, 2048, {13, 13} },
{0x442, "STM32F09x", 0x40000, 2048, {13, 13} },
{0x431, "STM32F411", 0x80000, 16384, {13, 19} },
{ 0 }
};
@@ -114,6 +113,7 @@ uint8_t boot_loader_version;
const char *serial_port = "/dev/ttyUSB1";
const char *input_filename;
const char *output_filename;
uint32_t offset = 0x08000000, length = 0;
/* optional command flags */
enum {
@@ -777,8 +777,11 @@ int read_flash(int fd, struct stm32_def *chip, const char *filename,
{
int res;
FILE *hnd;
uint8_t *buffer = malloc(size);
uint8_t *buffer;
if (!size)
size = chip->flash_size;
buffer = malloc(size);
if (!buffer) {
fprintf(stderr, "Cannot allocate %d bytes\n", size);
return -ENOMEM;
@@ -791,9 +794,6 @@ int read_flash(int fd, struct stm32_def *chip, const char *filename,
return -EIO;
}
if (!size)
size = chip->flash_size;
offset += chip->flash_start;
printf("Reading %d bytes at 0x%08x\n", size, offset);
res = command_read_mem(fd, offset, size, buffer);
if (res > 0) {
@@ -838,7 +838,6 @@ int write_flash(int fd, struct stm32_def *chip, const char *filename,
}
fclose(hnd);
offset += chip->flash_start;
printf("Writing %d bytes at 0x%08x\n", res, offset);
written = command_write_mem(fd, offset, res, buffer);
if (written != res) {
@@ -864,6 +863,8 @@ static const struct option longopts[] = {
{"baudrate", 1, 0, 'b'},
{"adapter", 1, 0, 'a'},
{"spi", 1, 0, 's'},
{"length", 1, 0, 'n'},
{"offset", 1, 0, 'o'},
{NULL, 0, 0, 0}
};
@@ -872,7 +873,8 @@ void display_usage(char *program)
fprintf(stderr,
"Usage: %s [-a <i2c_adapter> [-l address ]] | [-s]"
" [-d <tty>] [-b <baudrate>]] [-u] [-e] [-U]"
" [-r <file>] [-w <file>] [-g]\n", program);
" [-r <file>] [-w <file>] [-o offset] [-l length] [-g]\n",
program);
fprintf(stderr, "Can access the controller via serial port or i2c\n");
fprintf(stderr, "Serial port mode:\n");
fprintf(stderr, "--d[evice] <tty> : use <tty> as the serial port\n");
@@ -890,6 +892,8 @@ void display_usage(char *program)
fprintf(stderr, "--s[pi] </dev/spi> : use SPI adapter on </dev>.\n");
fprintf(stderr, "--w[rite] <file|-> : read <file> or\n\t"
"standard input and write it to flash\n");
fprintf(stderr, "--o[ffset] : offset to read/write/start from/to\n");
fprintf(stderr, "--n[length] : amount to read/write\n");
fprintf(stderr, "--g[o] : jump to execute flash entrypoint\n");
exit(2);
@@ -922,7 +926,7 @@ int parse_parameters(int argc, char **argv)
int opt, idx;
int flags = 0;
while ((opt = getopt_long(argc, argv, "a:l:b:d:eghr:s:w:uU?",
while ((opt = getopt_long(argc, argv, "a:l:b:d:eghn:o:r:s:w:uU?",
longopts, &idx)) != -1) {
switch (opt) {
case 'a':
@@ -949,6 +953,12 @@ int parse_parameters(int argc, char **argv)
case '?':
display_usage(argv[0]);
break;
case 'n':
length = strtol(optarg, NULL, 0);
break;
case 'o':
offset = strtol(optarg, NULL, 0);
break;
case 'r':
input_filename = optarg;
break;
@@ -1028,21 +1038,20 @@ int main(int argc, char **argv)
}
if (input_filename) {
ret = read_flash(ser, chip, input_filename,
0, chip->flash_size);
ret = read_flash(ser, chip, input_filename, offset, length);
if (ret)
goto terminate;
}
if (output_filename) {
ret = write_flash(ser, chip, output_filename, 0);
ret = write_flash(ser, chip, output_filename, offset);
if (ret)
goto terminate;
}
/* Run the program from flash */
if (flags & FLAG_GO)
command_go(ser, chip->flash_start);
command_go(ser, offset);
/* Normal exit */
ret = 0;