From b1a942aca3e80aaaa8405d313424f1d6f9273bd9 Mon Sep 17 00:00:00 2001 From: Uwe Bonnes Date: Wed, 30 Jan 2013 17:16:44 +0100 Subject: STM32F0/3: Handle the option bytes --- src/stm32f1.c | 41 ++++++++++++++++++++++++++++++----------- 1 file changed, 30 insertions(+), 11 deletions(-) (limited to 'src/stm32f1.c') diff --git a/src/stm32f1.c b/src/stm32f1.c index 456c812..4cc7b2a 100644 --- a/src/stm32f1.c +++ b/src/stm32f1.c @@ -93,6 +93,7 @@ static const char stm32hd_xml_memory_map[] = "" #define FLASH_OBR (FPEC_BASE+0x1C) #define FLASH_WRPR (FPEC_BASE+0x20) +#define FLASH_CR_OBL_LAUNCH (1<<13) #define FLASH_CR_OPTWRE (1 << 9) #define FLASH_CR_STRT (1 << 6) #define FLASH_CR_OPTER (1 << 5) @@ -104,6 +105,7 @@ static const char stm32hd_xml_memory_map[] = "" #define FLASH_OBP_RDP 0x1FFFF800 #define FLASH_OBP_RDP_KEY 0x5aa5 +#define FLASH_OBP_RDP_KEY_F3 0x55AA #define KEY1 0x45670123 #define KEY2 0xCDEF89AB @@ -153,10 +155,9 @@ uint16_t stm32f1_flash_write_stub[] = { bool stm32f1_probe(struct target_s *target) { - uint32_t idcode; - idcode = adiv5_ap_mem_read(adiv5_target_ap(target), DBGMCU_IDCODE); - switch(idcode & 0xFFF) { + target->idcode = adiv5_ap_mem_read(adiv5_target_ap(target), DBGMCU_IDCODE) & 0xfff; + switch(target->idcode) { case 0x410: /* Medium density */ case 0x412: /* Low denisty */ case 0x420: /* Value Line, Low-/Medium density */ @@ -164,7 +165,7 @@ bool stm32f1_probe(struct target_s *target) target->xml_mem_map = stm32f1_xml_memory_map; target->flash_erase = stm32md_flash_erase; target->flash_write = stm32f1_flash_write; - target_add_commands(target, stm32f1_cmd_list, "STM32"); + target_add_commands(target, stm32f1_cmd_list, "STM32 LD/MD"); return true; case 0x414: /* High density */ case 0x418: /* Connectivity Line */ @@ -173,7 +174,7 @@ bool stm32f1_probe(struct target_s *target) target->xml_mem_map = stm32hd_xml_memory_map; target->flash_erase = stm32hd_flash_erase; target->flash_write = stm32f1_flash_write; - target_add_commands(target, stm32f1_cmd_list, "STM32"); + target_add_commands(target, stm32f1_cmd_list, "STM32 HD/CL"); return true; case 0x422: /* STM32F30x */ case 0x432: /* STM32F37x */ @@ -181,18 +182,18 @@ bool stm32f1_probe(struct target_s *target) target->xml_mem_map = stm32hd_xml_memory_map; target->flash_erase = stm32hd_flash_erase; target->flash_write = stm32f1_flash_write; - target_add_commands(target, stm32f1_cmd_list, "STM32"); + target_add_commands(target, stm32f1_cmd_list, "STM32F3"); return true; } - idcode = adiv5_ap_mem_read(adiv5_target_ap(target), DBGMCU_IDCODE_F0); - switch(idcode & 0xFFF) { + target->idcode = adiv5_ap_mem_read(adiv5_target_ap(target), DBGMCU_IDCODE_F0) & 0xfff; + switch(target->idcode) { case 0x440: /* STM32F0 */ target->driver = stm32f0_driver_str; target->xml_mem_map = stm32f1_xml_memory_map; target->flash_erase = stm32md_flash_erase; target->flash_write = stm32f1_flash_write; - target_add_commands(target, stm32f1_cmd_list, "STM32"); + target_add_commands(target, stm32f1_cmd_list, "STM32F0"); return true; } @@ -338,15 +339,24 @@ static bool stm32f1_option_write(target *t, uint32_t addr, uint16_t value) static bool stm32f1_cmd_option(target *t, int argc, char *argv[]) { uint32_t addr, val; - + uint32_t flash_obp_rdp_key; ADIv5_AP_t *ap = adiv5_target_ap(t); + + switch(t->idcode) { + case 0x422: /* STM32F30x */ + case 0x432: /* STM32F37x */ + case 0x440: /* STM32F0 */ + flash_obp_rdp_key = FLASH_OBP_RDP_KEY_F3; + break; + default: flash_obp_rdp_key = FLASH_OBP_RDP_KEY; + } stm32f1_flash_unlock(ap); adiv5_ap_mem_write(ap, FLASH_OPTKEYR, KEY1); adiv5_ap_mem_write(ap, FLASH_OPTKEYR, KEY2); if ((argc == 2) && !strcmp(argv[1], "erase")) { stm32f1_option_erase(t); - stm32f1_option_write(t, FLASH_OBP_RDP, FLASH_OBP_RDP_KEY); + stm32f1_option_write(t, FLASH_OBP_RDP, flash_obp_rdp_key); } else if (argc == 3) { addr = strtol(argv[1], NULL, 0); val = strtol(argv[2], NULL, 0); @@ -356,6 +366,15 @@ static bool stm32f1_cmd_option(target *t, int argc, char *argv[]) gdb_out("usage: monitor option \n"); } + if (0 && flash_obp_rdp_key == FLASH_OBP_RDP_KEY_F3) { + /* Reload option bytes on F0 and F3*/ + val = adiv5_ap_mem_read(ap, FLASH_CR); + val |= FLASH_CR_OBL_LAUNCH; + stm32f1_option_write(t, FLASH_CR, val); + val &= ~FLASH_CR_OBL_LAUNCH; + stm32f1_option_write(t, FLASH_CR, val); + } + for (int i = 0; i < 0xf; i += 4) { addr = 0x1ffff800 + i; val = adiv5_ap_mem_read(ap, addr); -- cgit v1.2.3