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lpc17xx: Switched to the unified mass erase command and added progress dots to stop GDB timing out

This commit is contained in:
dragonmux 2022-07-11 20:04:00 -04:00 committed by Piotr Esden-Tempski
parent ae1cb56ce0
commit 6f57cdf6ba
1 changed files with 19 additions and 27 deletions
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46
src/target/lpc17xx.c
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@ -46,14 +46,9 @@ struct flash_param {
} __attribute__((aligned(4)));
static void lpc17xx_extended_reset(target *t);
static bool lpc17xx_cmd_erase(target *t, int argc, const char *argv[]);
static bool lpc17xx_mass_erase(target *t);
enum iap_status lpc17xx_iap_call(target *t, struct flash_param *param, enum iap_cmd cmd, ...);
const struct command_s lpc17xx_cmd_list[] = {
{"erase_mass", lpc17xx_cmd_erase, "Erase entire flash memory"},
{NULL, NULL, NULL}
};
static void lpc17xx_add_flash(target *t, uint32_t addr, size_t len, size_t erasesize, unsigned int base_sector)
{
struct lpc_flash *lf = lpc_add_flash(t, addr, len);
@ -75,9 +70,8 @@ lpc17xx_probe(target *t)
if (ap_idcode == LPC17xx_JTAG_IDCODE || ap_idcode == LPC17xx_SWDP_IDCODE) {
/* LPC176x/5x family. See UM10360.pdf 33.7 JTAG TAP Identification*/
} else {
} else
return false;
}
if ((t->cpuid & CPUID_PARTNO_MASK) == CORTEX_M3) {
/*
@ -111,6 +105,7 @@ lpc17xx_probe(target *t)
case 0x25001118: /* LPC1751 */
case 0x25001110: /* LPC1751 (No CRP) */
t->mass_erase = lpc17xx_mass_erase;
t->driver = "LPC17xx";
t->extended_reset = lpc17xx_extended_reset;
target_add_ram(t, 0x10000000, 0x8000);
@ -118,7 +113,6 @@ lpc17xx_probe(target *t)
target_add_ram(t, 0x20080000, 0x4000);
lpc17xx_add_flash(t, 0x00000000, 0x10000, 0x1000, 0);
lpc17xx_add_flash(t, 0x00010000, 0x70000, 0x8000, 16);
target_add_commands(t, lpc17xx_cmd_list, "LPC17xx");
return true;
}
@ -126,28 +120,22 @@ lpc17xx_probe(target *t)
return false;
}
static bool
lpc17xx_cmd_erase(target *t, int argc, const char *argv[])
static bool lpc17xx_mass_erase(target *t)
{
(void)argc;
(void)argv;
struct flash_param param;
if (lpc17xx_iap_call(t, &param, IAP_CMD_PREPARE, 0, FLASH_NUM_SECTOR-1)) {
DEBUG_WARN("lpc17xx_cmd_erase: prepare failed %d\n",
(unsigned int)param.result[0]);
if (lpc17xx_iap_call(t, &param, IAP_CMD_PREPARE, 0, FLASH_NUM_SECTOR - 1U)) {
DEBUG_WARN("lpc17xx_cmd_erase: prepare failed %" PRIu32 "\n", param.result[0]);
return false;
}
if (lpc17xx_iap_call(t, &param, IAP_CMD_ERASE, 0, FLASH_NUM_SECTOR-1, CPU_CLK_KHZ)) {
DEBUG_WARN("lpc17xx_cmd_erase: erase failed %d\n",
(unsigned int)param.result[0]);
if (lpc17xx_iap_call(t, &param, IAP_CMD_ERASE, 0, FLASH_NUM_SECTOR - 1U, CPU_CLK_KHZ)) {
DEBUG_WARN("lpc17xx_cmd_erase: erase failed %" PRIu32 "\n", param.result[0]);
return false;
}
if (lpc17xx_iap_call(t, &param, IAP_CMD_BLANKCHECK, 0, FLASH_NUM_SECTOR-1)) {
DEBUG_WARN("lpc17xx_cmd_erase: blankcheck failed %d\n",
(unsigned int)param.result[0]);
if (lpc17xx_iap_call(t, &param, IAP_CMD_BLANKCHECK, 0, FLASH_NUM_SECTOR - 1U)) {
DEBUG_WARN("lpc17xx_cmd_erase: blankcheck failed %" PRIu32 "\n", param.result[0]);
return false;
}
tc_printf(t, "Erase OK.\n");
@ -158,15 +146,14 @@ lpc17xx_cmd_erase(target *t, int argc, const char *argv[])
* Target has been reset, make sure to remap the boot ROM
* from 0x00000000 leaving the user flash visible
*/
static void
lpc17xx_extended_reset(target *t)
static void lpc17xx_extended_reset(target *t)
{
/* From §33.6 Debug memory re-mapping (Page 643) UM10360.pdf (Rev 2) */
target_mem_write32(t, MEMMAP, 1);
}
enum iap_status
lpc17xx_iap_call(target *t, struct flash_param *param, enum iap_cmd cmd, ...) {
enum iap_status lpc17xx_iap_call(target *t, struct flash_param *param, enum iap_cmd cmd, ...)
{
param->opcode = ARM_THUMB_BREAKPOINT;
param->command = cmd;
@ -190,9 +177,14 @@ lpc17xx_iap_call(target *t, struct flash_param *param, enum iap_cmd cmd, ...) {
regs[REG_PC] = IAP_ENTRYPOINT;
target_regs_write(t, regs);
platform_timeout timeout;
platform_timeout_set(&timeout, 500);
/* start the target and wait for it to halt again */
target_halt_resume(t, false);
while (!target_halt_poll(t, NULL));
while (!target_halt_poll(t, NULL)) {
if (cmd == IAP_CMD_ERASE)
target_print_progress(&timeout);
}
/* copy back just the parameters structure */
target_mem_read(t, (void *)param, IAP_RAM_BASE, sizeof(struct flash_param));