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LPC43XX: Add reset command to do a system reset (but not the debug).

This commit is contained in:
Allen Ibara 2014-01-10 10:54:56 -08:00
parent 813622b1b6
commit 911af3b836
1 changed files with 16 additions and 0 deletions
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16
src/lpc43xx.c
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@ -114,6 +114,7 @@ struct flash_program {
}; };
static bool lpc43xx_cmd_erase(target *t); static bool lpc43xx_cmd_erase(target *t);
static bool lpc43xx_cmd_reset(target *target, int argc, const char *argv[]);
static bool lpc43xx_cmd_mkboot(target *target, int argc, const char *argv[]); static bool lpc43xx_cmd_mkboot(target *target, int argc, const char *argv[]);
static int lpc43xx_flash_init(struct target_s *target); static int lpc43xx_flash_init(struct target_s *target);
static void lpc43xx_iap_call(struct target_s *target, struct flash_param *param, unsigned param_len); static void lpc43xx_iap_call(struct target_s *target, struct flash_param *param, unsigned param_len);
@ -123,6 +124,7 @@ static int lpc43xx_flash_write(struct target_s *target, uint32_t dest, const uin
const struct command_s lpc43xx_cmd_list[] = { const struct command_s lpc43xx_cmd_list[] = {
{"erase_mass", (cmd_handler)lpc43xx_cmd_erase, "Erase entire flash memory"}, {"erase_mass", (cmd_handler)lpc43xx_cmd_erase, "Erase entire flash memory"},
{"reset", lpc43xx_cmd_reset, "Reset target"},
{"mkboot", lpc43xx_cmd_mkboot, "Make flash bank bootable"}, {"mkboot", lpc43xx_cmd_mkboot, "Make flash bank bootable"},
{NULL, NULL, NULL} {NULL, NULL, NULL}
}; };
@ -198,6 +200,20 @@ bool lpc43xx_probe(struct target_s *target)
return false; return false;
} }
/* Reset all major systems _except_ debug */
static bool lpc43xx_cmd_reset(target *target, int __attribute__((unused)) argc, const char __attribute__((unused)) *argv[])
{
/* Cortex-M4 Application Interrupt and Reset Control Register */
static const uint32_t AIRCR = 0xE000ED0C;
/* Magic value key */
static const uint32_t reset_val = 0x05FA0004;
/* System reset on target */
target_mem_write_words(target, AIRCR, &reset_val, sizeof(reset_val));
return true;
}
static bool lpc43xx_cmd_erase(target *target) static bool lpc43xx_cmd_erase(target *target)
{ {
uint32_t bank = 0; uint32_t bank = 0;