From 0cd5c07a2da090ef848406c3f097e44a9eb39bb1 Mon Sep 17 00:00:00 2001 From: ntfreak Date: Sat, 24 May 2008 14:49:45 +0000 Subject: [PATCH] - added stellaris flash mass_erase command git-svn-id: svn://svn.berlios.de/openocd/trunk@682 b42882b7-edfa-0310-969c-e2dbd0fdcd60 --- src/flash/stellaris.c | 212 ++++++++++++++++++++++++++---------------- 1 file changed, 132 insertions(+), 80 deletions(-) diff --git a/src/flash/stellaris.c b/src/flash/stellaris.c index ecdf686d55..e8c0a1c14e 100644 --- a/src/flash/stellaris.c +++ b/src/flash/stellaris.c @@ -48,7 +48,6 @@ int stellaris_protect(struct flash_bank_s *bank, int set, int first, int last); int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count); int stellaris_auto_probe(struct flash_bank_s *bank); int stellaris_probe(struct flash_bank_s *bank); -int stellaris_erase_check(struct flash_bank_s *bank); int stellaris_protect_check(struct flash_bank_s *bank); int stellaris_info(struct flash_bank_s *bank, char *buf, int buf_size); @@ -58,6 +57,8 @@ void stellaris_set_flash_mode(flash_bank_t *bank,int mode); u32 stellaris_wait_status_busy(flash_bank_t *bank, u32 waitbits, int timeout); int stellaris_read_part_info(struct flash_bank_s *bank); +int stellaris_handle_mass_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +int stellaris_mass_erase(struct flash_bank_s *bank); flash_driver_t stellaris_flash = { @@ -69,7 +70,7 @@ flash_driver_t stellaris_flash = .write = stellaris_write, .probe = stellaris_probe, .auto_probe = stellaris_auto_probe, - .erase_check = stellaris_erase_check, + .erase_check = default_flash_blank_check, .protect_check = stellaris_protect_check, .info = stellaris_info }; @@ -255,7 +256,7 @@ int stellaris_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, c return ERROR_FLASH_BANK_INVALID; } - stellaris_info = calloc(sizeof(stellaris_flash_bank_t),1); + stellaris_info = calloc(sizeof(stellaris_flash_bank_t), 1); bank->base = 0x0; bank->driver_priv = stellaris_info; @@ -270,11 +271,9 @@ int stellaris_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, c int stellaris_register_commands(struct command_context_s *cmd_ctx) { -/* - command_t *stellaris_cmd = register_command(cmd_ctx, NULL, "stellaris", NULL, COMMAND_ANY, NULL); - register_command(cmd_ctx, stellaris_cmd, "gpnvm", stellaris_handle_gpnvm_command, COMMAND_EXEC, - "stellaris gpnvm set|clear, set or clear stellaris gpnvm bit"); -*/ + command_t *stm32x_cmd = register_command(cmd_ctx, NULL, "stellaris", NULL, COMMAND_ANY, "stellaris flash specific commands"); + + register_command(cmd_ctx, stm32x_cmd, "mass_erase", stellaris_handle_mass_erase_command, COMMAND_EXEC, "mass erase device"); return ERROR_OK; } @@ -293,9 +292,9 @@ int stellaris_info(struct flash_bank_s *bank, char *buf, int buf_size) return ERROR_FLASH_OPERATION_FAILED; } - if (DID0_VER(stellaris_info->did0)>0) + if (DID0_VER(stellaris_info->did0) > 0) { - device_class = (stellaris_info->did0>>16)&0xFF; + device_class = (stellaris_info->did0>>16) & 0xFF; } else { @@ -303,12 +302,12 @@ int stellaris_info(struct flash_bank_s *bank, char *buf, int buf_size) } printed = snprintf(buf, buf_size, "\nLMI Stellaris information: Chip is class %i(%s) %s v%c.%i\n", device_class, StellarisClassname[device_class], stellaris_info->target_name, - 'A' + ((stellaris_info->did0>>8)&0xFF), (stellaris_info->did0)&0xFF); + 'A' + ((stellaris_info->did0>>8) & 0xFF), (stellaris_info->did0) & 0xFF); buf += printed; buf_size -= printed; printed = snprintf(buf, buf_size, "did1: 0x%8.8x, arch: 0x%4.4x, eproc: %s, ramsize:%ik, flashsize: %ik\n", - stellaris_info->did1, stellaris_info->did1, "ARMV7M", (1+((stellaris_info->dc0>>16)&0xFFFF))/4, (1+(stellaris_info->dc0&0xFFFF))*2); + stellaris_info->did1, stellaris_info->did1, "ARMV7M", (1+((stellaris_info->dc0>>16) & 0xFFFF))/4, (1+(stellaris_info->dc0 & 0xFFFF))*2); buf += printed; buf_size -= printed; @@ -348,15 +347,15 @@ void stellaris_read_clock_info(flash_bank_t *bank) unsigned long mainfreq; target_read_u32(target, SCB_BASE|RCC, &rcc); - LOG_DEBUG("Stellaris RCC %x",rcc); + LOG_DEBUG("Stellaris RCC %x", rcc); target_read_u32(target, SCB_BASE|PLLCFG, &pllcfg); - LOG_DEBUG("Stellaris PLLCFG %x",pllcfg); + LOG_DEBUG("Stellaris PLLCFG %x", pllcfg); stellaris_info->rcc = rcc; - sysdiv = (rcc>>23)&0xF; - usesysdiv = (rcc>>22)&0x1; - bypass = (rcc>>11)&0x1; - oscsrc = (rcc>>4)&0x3; + sysdiv = (rcc>>23) & 0xF; + usesysdiv = (rcc>>22) & 0x1; + bypass = (rcc>>11) & 0x1; + oscsrc = (rcc>>4) & 0x3; /* xtal = (rcc>>6)&0xF; */ switch (oscsrc) { @@ -388,7 +387,7 @@ void stellaris_read_clock_info(flash_bank_t *bank) stellaris_info->mck_freq = mainfreq; /* Forget old flash timing */ - stellaris_set_flash_mode(bank,0); + stellaris_set_flash_mode(bank, 0); } /* Setup the timimg registers */ @@ -399,8 +398,7 @@ void stellaris_set_flash_mode(flash_bank_t *bank,int mode) u32 usecrl = (stellaris_info->mck_freq/1000000ul-1); LOG_DEBUG("usecrl = %i",usecrl); - target_write_u32(target, SCB_BASE|USECRL , usecrl); - + target_write_u32(target, SCB_BASE|USECRL, usecrl); } u32 stellaris_wait_status_busy(flash_bank_t *bank, u32 waitbits, int timeout) @@ -442,7 +440,7 @@ int stellaris_read_part_info(struct flash_bank_s *bank) { stellaris_flash_bank_t *stellaris_info = bank->driver_priv; target_t *target = bank->target; - u32 did0,did1, ver, fam, status; + u32 did0, did1, ver, fam, status; int i; /* Read and parse chip identification register */ @@ -450,7 +448,7 @@ int stellaris_read_part_info(struct flash_bank_s *bank) target_read_u32(target, SCB_BASE|DID1, &did1); target_read_u32(target, SCB_BASE|DC0, &stellaris_info->dc0); target_read_u32(target, SCB_BASE|DC1, &stellaris_info->dc1); - LOG_DEBUG("did0 0x%x, did1 0x%x, dc0 0x%x, dc1 0x%x",did0, did1, stellaris_info->dc0,stellaris_info->dc1); + LOG_DEBUG("did0 0x%x, did1 0x%x, dc0 0x%x, dc1 0x%x", did0, did1, stellaris_info->dc0, stellaris_info->dc1); ver = did0 >> 28; if((ver != 0) && (ver != 1)) @@ -472,9 +470,9 @@ int stellaris_read_part_info(struct flash_bank_s *bank) LOG_WARNING("Unknown did1 version/family, cannot positively identify target as a Stellaris"); } - for (i=0;StellarisParts[i].partno;i++) + for (i = 0; StellarisParts[i].partno; i++) { - if (StellarisParts[i].partno==((did1>>16)&0xFF)) + if (StellarisParts[i].partno == ((did1 >> 16) & 0xFF)) break; } @@ -483,10 +481,10 @@ int stellaris_read_part_info(struct flash_bank_s *bank) stellaris_info->did0 = did0; stellaris_info->did1 = did1; - stellaris_info->num_lockbits = 1+(stellaris_info->dc0&0xFFFF); - stellaris_info->num_pages = 2*(1+(stellaris_info->dc0&0xFFFF)); + stellaris_info->num_lockbits = 1 + (stellaris_info->dc0 & 0xFFFF); + stellaris_info->num_pages = 2 *(1+(stellaris_info->dc0 & 0xFFFF)); stellaris_info->pagesize = 1024; - bank->size = 1024*stellaris_info->num_pages; + bank->size = 1024 * stellaris_info->num_pages; stellaris_info->pages_in_lockregion = 2; target_read_u32(target, SCB_BASE|FMPPE, &stellaris_info->lockbits); @@ -495,7 +493,7 @@ int stellaris_read_part_info(struct flash_bank_s *bank) bank->sectors = malloc(sizeof(flash_sector_t) * bank->num_sectors); for (i = 0; i < bank->num_sectors; i++) { - bank->sectors[i].offset = i*stellaris_info->pagesize; + bank->sectors[i].offset = i * stellaris_info->pagesize; bank->sectors[i].size = stellaris_info->pagesize; bank->sectors[i].is_erased = -1; bank->sectors[i].is_protected = -1; @@ -513,19 +511,6 @@ int stellaris_read_part_info(struct flash_bank_s *bank) * flash operations * ***************************************************************************/ -int stellaris_erase_check(struct flash_bank_s *bank) -{ - /* - - stellaris_flash_bank_t *stellaris_info = bank->driver_priv; - target_t *target = bank->target; - int i; - - */ - - return ERROR_OK; -} - int stellaris_protect_check(struct flash_bank_s *bank) { u32 status; @@ -581,7 +566,12 @@ int stellaris_erase(struct flash_bank_s *bank, int first, int last) { return ERROR_FLASH_SECTOR_INVALID; } - + + if ((first == 0) && (last == (stellaris_info->num_pages-1))) + { + return stellaris_mass_erase(bank); + } + /* Configure the flash controller timing */ stellaris_read_clock_info(bank); stellaris_set_flash_mode(bank,0); @@ -589,34 +579,7 @@ int stellaris_erase(struct flash_bank_s *bank, int first, int last) /* Clear and disable flash programming interrupts */ target_write_u32(target, FLASH_CIM, 0); target_write_u32(target, FLASH_MISC, PMISC|AMISC); - - if ((first == 0) && (last == (stellaris_info->num_pages-1))) - { - target_write_u32(target, FLASH_FMA, 0); - target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_MERASE); - /* Wait until erase complete */ - do - { - target_read_u32(target, FLASH_FMC, &flash_fmc); - } - while(flash_fmc & FMC_MERASE); - - /* if device has > 128k, then second erase cycle is needed */ - if(stellaris_info->num_pages * stellaris_info->pagesize > 0x20000) - { - target_write_u32(target, FLASH_FMA, 0x20000); - target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_MERASE); - /* Wait until erase complete */ - do - { - target_read_u32(target, FLASH_FMC, &flash_fmc); - } - while(flash_fmc & FMC_MERASE); - } - - return ERROR_OK; - } - + for (banknr=first;banknr<=last;banknr++) { /* Address is first word in page */ @@ -676,15 +639,15 @@ int stellaris_protect(struct flash_bank_s *bank, int set, int first, int last) /* Configure the flash controller timing */ stellaris_read_clock_info(bank); - stellaris_set_flash_mode(bank,0); + stellaris_set_flash_mode(bank, 0); fmppe = stellaris_info->lockbits; - for (lockregion=first;lockregion<=last;lockregion++) + for (lockregion = first; lockregion <= last; lockregion++) { if (set) - fmppe &= ~(1<lockbits); - + return ERROR_OK; } @@ -838,7 +801,6 @@ int stellaris_write_block(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 wcount -= thisrun_count; } - target_free_working_area(target, write_algorithm); target_free_working_area(target, source); @@ -892,7 +854,7 @@ int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count /* Configure the flash controller timing */ stellaris_read_clock_info(bank); - stellaris_set_flash_mode(bank,0); + stellaris_set_flash_mode(bank, 0); /* Clear and disable flash programming interrupts */ @@ -930,7 +892,7 @@ int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count while(count>0) { - if (!(address&0xff)) LOG_DEBUG("0x%x",address); + if (!(address & 0xff)) LOG_DEBUG("0x%x", address); /* Program one word */ target_write_u32(target, FLASH_FMA, address); target_write_buffer(target, FLASH_FMD, 4, buffer); @@ -948,7 +910,7 @@ int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count } /* Check acess violations */ target_read_u32(target, FLASH_CRIS, &flash_cris); - if(flash_cris & (AMASK)) + if (flash_cris & (AMASK)) { LOG_DEBUG("flash_cris 0x%x", flash_cris); return ERROR_FLASH_OPERATION_FAILED; @@ -978,3 +940,93 @@ int stellaris_auto_probe(struct flash_bank_s *bank) return ERROR_OK; return stellaris_probe(bank); } + +int stellaris_mass_erase(struct flash_bank_s *bank) +{ + target_t *target = NULL; + stellaris_flash_bank_t *stellaris_info = NULL; + u32 flash_fmc; + + stellaris_info = bank->driver_priv; + target = bank->target; + + if (target->state != TARGET_HALTED) + { + return ERROR_TARGET_NOT_HALTED; + } + + if (stellaris_info->did1 == 0) + { + stellaris_read_part_info(bank); + } + + if (stellaris_info->did1 == 0) + { + LOG_WARNING("Cannot identify target as Stellaris"); + return ERROR_FLASH_OPERATION_FAILED; + } + + /* Configure the flash controller timing */ + stellaris_read_clock_info(bank); + stellaris_set_flash_mode(bank, 0); + + /* Clear and disable flash programming interrupts */ + target_write_u32(target, FLASH_CIM, 0); + target_write_u32(target, FLASH_MISC, PMISC|AMISC); + + target_write_u32(target, FLASH_FMA, 0); + target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_MERASE); + /* Wait until erase complete */ + do + { + target_read_u32(target, FLASH_FMC, &flash_fmc); + } + while(flash_fmc & FMC_MERASE); + + /* if device has > 128k, then second erase cycle is needed + * this is only valid for older devices, but will not hurt */ + if(stellaris_info->num_pages * stellaris_info->pagesize > 0x20000) + { + target_write_u32(target, FLASH_FMA, 0x20000); + target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_MERASE); + /* Wait until erase complete */ + do + { + target_read_u32(target, FLASH_FMC, &flash_fmc); + } + while(flash_fmc & FMC_MERASE); + } + + return ERROR_OK; +} + +int stellaris_handle_mass_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + flash_bank_t *bank; + int i; + + if (argc < 1) + { + command_print(cmd_ctx, "stellaris mass_erase "); + return ERROR_OK; + } + + bank = get_flash_bank_by_num(strtoul(args[0], NULL, 0)); + if (!bank) + { + command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]); + return ERROR_OK; + } + + stellaris_mass_erase(bank); + + /* set all sectors as erased */ + for (i = 0; i < bank->num_sectors; i++) + { + bank->sectors[i].is_erased = 1; + } + + command_print(cmd_ctx, "stellaris mass erase complete"); + + return ERROR_OK; +} -- 2.30.2