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target: Implemented a command to allow erasing Flash ranges on any target

This commit is contained in:
dragonmux 2022-07-14 19:57:05 -04:00 committed by Piotr Esden-Tempski
parent 52cad38fac
commit 85d24e8289
1 changed files with 26 additions and 2 deletions
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28
src/target/target.c
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@ -29,13 +29,15 @@ target *target_list = NULL;
#define STDOUT_READ_BUF_SIZE 64
static int target_flash_write_buffered(struct target_flash *f,
target_addr dest, const void *src, size_t len);
static int target_flash_write_buffered(struct target_flash *f, target_addr dest, const void *src, size_t len);
static int target_flash_done_buffered(struct target_flash *f);
static bool target_cmd_mass_erase(target *t, int argc, const char **argv);
static bool target_cmd_range_erase(target *t, int argc, const char **argv);
const struct command_s target_cmd_list[] = {
{"erase_mass", (cmd_handler)target_cmd_mass_erase, "Erase whole device Flash"},
{"erase_range", (cmd_handler)target_cmd_range_erase, "Erase a range of memory on a device"},
{NULL, NULL, NULL}
};
@ -539,6 +541,28 @@ static bool target_cmd_mass_erase(target *const t, const int argc, const char **
return result;
}
static bool target_cmd_range_erase(target *const t, const int argc, const char **const argv)
{
if (argc < 3) {
gdb_out("usage: monitor erase_range <address> <count>");
gdb_out("\t<address> is an address in the first page to erase");
gdb_out("\t<count> is the number bytes after that to erase, rounded to the next higher whole page");
return true;
}
const uint32_t addr = strtoul(argv[1], NULL, 0);
const uint32_t length = strtoul(argv[2], NULL, 0);
struct target_flash *flash = flash_for_addr(t, addr);
if (flash == NULL) {
gdb_out("Requested address is outside the valid range for this target");
return false;
}
const target_addr aligned_addr = addr & ~(flash->blocksize - 1U);
const uint32_t aligned_length = length + (addr - aligned_addr);
return target_flash_erase(t, aligned_addr, aligned_length) == 0;
}
/* Accessor functions */
size_t target_regs_size(target *t)
{