diff options
Diffstat (limited to 'src/flash/stellaris.c')
-rw-r--r-- | src/flash/stellaris.c | 206 |
1 files changed, 103 insertions, 103 deletions
diff --git a/src/flash/stellaris.c b/src/flash/stellaris.c index 001b0176..97727909 100644 --- a/src/flash/stellaris.c +++ b/src/flash/stellaris.c @@ -241,30 +241,30 @@ static char * StellarisClassname[5] = static int stellaris_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank) { stellaris_flash_bank_t *stellaris_info; - + if (argc < 6) { LOG_WARNING("incomplete flash_bank stellaris configuration"); return ERROR_FLASH_BANK_INVALID; } - + stellaris_info = calloc(sizeof(stellaris_flash_bank_t), 1); bank->base = 0x0; bank->driver_priv = stellaris_info; - + stellaris_info->target_name = "Unknown target"; - + /* part wasn't probed for info yet */ stellaris_info->did1 = 0; - - /* TODO Use an optional main oscillator clock rate in kHz from arg[6] */ + + /* TODO Use an optional main oscillator clock rate in kHz from arg[6] */ return ERROR_OK; } static int stellaris_register_commands(struct command_context_s *cmd_ctx) { 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; } @@ -273,7 +273,7 @@ static int stellaris_info(struct flash_bank_s *bank, char *buf, int buf_size) { int printed, device_class; stellaris_flash_bank_t *stellaris_info = bank->driver_priv; - + stellaris_read_part_info(bank); if (stellaris_info->did1 == 0) @@ -283,7 +283,7 @@ static int stellaris_info(struct flash_bank_s *bank, char *buf, int buf_size) buf_size -= printed; return ERROR_FLASH_OPERATION_FAILED; } - + if (DID0_VER(stellaris_info->did0) > 0) { device_class = (stellaris_info->did0>>16) & 0xFF; @@ -291,14 +291,14 @@ static int stellaris_info(struct flash_bank_s *bank, char *buf, int buf_size) else { device_class = 0; - } + } 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); 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", + 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); buf += printed; buf_size -= printed; @@ -324,14 +324,14 @@ static u32 stellaris_get_flash_status(flash_bank_t *bank) { target_t *target = bank->target; u32 fmc; - + target_read_u32(target, FLASH_CONTROL_BASE|FLASH_FMC, &fmc); - + return fmc; } /** Read clock configuration and set stellaris_info->usec_clocks*/ - + static void stellaris_read_clock_info(flash_bank_t *bank) { stellaris_flash_bank_t *stellaris_info = bank->driver_priv; @@ -344,7 +344,7 @@ static void stellaris_read_clock_info(flash_bank_t *bank) target_read_u32(target, SCB_BASE|PLLCFG, &pllcfg); LOG_DEBUG("Stellaris PLLCFG %x", pllcfg); stellaris_info->rcc = rcc; - + sysdiv = (rcc>>23) & 0xF; usesysdiv = (rcc>>22) & 0x1; bypass = (rcc>>11) & 0x1; @@ -370,15 +370,15 @@ static void stellaris_read_clock_info(flash_bank_t *bank) mainfreq = 0; break; } - + if (!bypass) mainfreq = 200000000; /* PLL out frec */ - + if (usesysdiv) stellaris_info->mck_freq = mainfreq/(1+sysdiv); else stellaris_info->mck_freq = mainfreq; - + /* Forget old flash timing */ stellaris_set_flash_mode(bank, 0); } @@ -390,7 +390,7 @@ static void stellaris_set_flash_mode(flash_bank_t *bank,int mode) target_t *target = bank->target; u32 usecrl = (stellaris_info->mck_freq/1000000ul-1); - LOG_DEBUG("usecrl = %i",usecrl); + LOG_DEBUG("usecrl = %i",usecrl); target_write_u32(target, SCB_BASE|USECRL, usecrl); } @@ -398,33 +398,33 @@ static void stellaris_set_flash_mode(flash_bank_t *bank,int mode) static u32 stellaris_wait_status_busy(flash_bank_t *bank, u32 waitbits, int timeout) { u32 status; - + /* Stellaris waits for cmdbit to clear */ while (((status = stellaris_get_flash_status(bank)) & waitbits) && (timeout-- > 0)) { LOG_DEBUG("status: 0x%x", status); alive_sleep(1); } - + /* Flash errors are reflected in the FLASH_CRIS register */ return status; } /* Send one command to the flash controller */ -static int stellaris_flash_command(struct flash_bank_s *bank,u8 cmd,u16 pagen) +static int stellaris_flash_command(struct flash_bank_s *bank,u8 cmd,u16 pagen) { u32 fmc; target_t *target = bank->target; - fmc = FMC_WRKEY | cmd; + fmc = FMC_WRKEY | cmd; target_write_u32(target, FLASH_CONTROL_BASE|FLASH_FMC, fmc); LOG_DEBUG("Flash command: 0x%x", fmc); - if (stellaris_wait_status_busy(bank, cmd, 100)) + if (stellaris_wait_status_busy(bank, cmd, 100)) { return ERROR_FLASH_OPERATION_FAILED; - } + } return ERROR_OK; } @@ -437,7 +437,7 @@ static int stellaris_read_part_info(struct flash_bank_s *bank) target_t *target = bank->target; u32 did0, did1, ver, fam, status; int i; - + /* Read and parse chip identification register */ target_read_u32(target, SCB_BASE|DID0, &did0); target_read_u32(target, SCB_BASE|DID1, &did1); @@ -470,9 +470,9 @@ static int stellaris_read_part_info(struct flash_bank_s *bank) if (StellarisParts[i].partno == ((did1 >> 16) & 0xFF)) break; } - + stellaris_info->target_name = StellarisParts[i].partname; - + stellaris_info->did0 = did0; stellaris_info->did1 = did1; @@ -496,9 +496,9 @@ static int stellaris_read_part_info(struct flash_bank_s *bank) /* Read main and master clock freqency register */ stellaris_read_clock_info(bank); - + status = stellaris_get_flash_status(bank); - + return ERROR_OK; } @@ -509,7 +509,7 @@ static int stellaris_read_part_info(struct flash_bank_s *bank) static int stellaris_protect_check(struct flash_bank_s *bank) { u32 status; - + stellaris_flash_bank_t *stellaris_info = bank->driver_priv; if (bank->target->state != TARGET_HALTED) @@ -528,10 +528,10 @@ static int stellaris_protect_check(struct flash_bank_s *bank) LOG_WARNING("Cannot identify target as an AT91SAM"); return ERROR_FLASH_OPERATION_FAILED; } - + status = stellaris_get_flash_status(bank); stellaris_info->lockbits = status >> 16; - + return ERROR_OK; } @@ -541,7 +541,7 @@ static int stellaris_erase(struct flash_bank_s *bank, int first, int last) u32 flash_fmc, flash_cris; stellaris_flash_bank_t *stellaris_info = bank->driver_priv; target_t *target = bank->target; - + if (bank->target->state != TARGET_HALTED) { LOG_ERROR("Target not halted"); @@ -557,26 +557,26 @@ static int stellaris_erase(struct flash_bank_s *bank, int first, int last) { LOG_WARNING("Cannot identify target as Stellaris"); return ERROR_FLASH_OPERATION_FAILED; - } - + } + if ((first < 0) || (last < first) || (last >= (int)stellaris_info->num_pages)) { return ERROR_FLASH_SECTOR_INVALID; } - + if ((first == 0) && (last == ((int)stellaris_info->num_pages-1))) { return stellaris_mass_erase(bank); } - + /* Configure the flash controller timing */ - stellaris_read_clock_info(bank); + 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); - + for (banknr = first; banknr <= last; banknr++) { /* Address is first word in page */ @@ -598,7 +598,7 @@ static int stellaris_erase(struct flash_bank_s *bank, int first, int last) target_write_u32(target, FLASH_CRIS, 0); return ERROR_FLASH_OPERATION_FAILED; } - + bank->sectors[banknr].is_erased = 1; } @@ -609,21 +609,21 @@ static int stellaris_protect(struct flash_bank_s *bank, int set, int first, int { u32 fmppe, flash_fmc, flash_cris; int lockregion; - + stellaris_flash_bank_t *stellaris_info = bank->driver_priv; target_t *target = bank->target; - + if (bank->target->state != TARGET_HALTED) { LOG_ERROR("Target not halted"); return ERROR_TARGET_NOT_HALTED; } - + if ((first < 0) || (last < first) || (last >= stellaris_info->num_lockbits)) { return ERROR_FLASH_SECTOR_INVALID; } - + if (stellaris_info->did1 == 0) { stellaris_read_part_info(bank); @@ -634,7 +634,7 @@ static int stellaris_protect(struct flash_bank_s *bank, int set, int first, int LOG_WARNING("Cannot identify target as an Stellaris MCU"); return ERROR_FLASH_OPERATION_FAILED; } - + /* Configure the flash controller timing */ stellaris_read_clock_info(bank); stellaris_set_flash_mode(bank, 0); @@ -643,15 +643,15 @@ static int stellaris_protect(struct flash_bank_s *bank, int set, int first, int for (lockregion = first; lockregion <= last; lockregion++) { if (set) - fmppe &= ~(1<<lockregion); + fmppe &= ~(1<<lockregion); else - fmppe |= (1<<lockregion); + fmppe |= (1<<lockregion); } /* Clear and disable flash programming interrupts */ target_write_u32(target, FLASH_CIM, 0); target_write_u32(target, FLASH_MISC, PMISC|AMISC); - + LOG_DEBUG("fmppe 0x%x",fmppe); target_write_u32(target, SCB_BASE|FMPPE, fmppe); /* Commit FMPPE */ @@ -675,21 +675,21 @@ static int stellaris_protect(struct flash_bank_s *bank, int set, int first, int target_write_u32(target, FLASH_CRIS, 0); return ERROR_FLASH_OPERATION_FAILED; } - + target_read_u32(target, SCB_BASE|FMPPE, &stellaris_info->lockbits); - + return ERROR_OK; } -static u8 stellaris_write_code[] = +static u8 stellaris_write_code[] = { -/* - Call with : +/* + Call with : r0 = buffer address r1 = destination address - r2 = bytecount (in) - endaddr (work) - - Used registers: + r2 = bytecount (in) - endaddr (work) + + Used registers: r3 = pFLASH_CTRL_BASE r4 = FLASHWRITECMD r5 = #1 @@ -731,7 +731,7 @@ static int stellaris_write_block(struct flash_bank_s *bank, u8 *buffer, u32 offs reg_param_t reg_params[3]; armv7m_algorithm_t armv7m_info; int retval = ERROR_OK; - + LOG_DEBUG("(bank=%p buffer=%p offset=%08X wcount=%08X)", bank, buffer, offset, wcount); @@ -748,32 +748,32 @@ static int stellaris_write_block(struct flash_bank_s *bank, u8 *buffer, u32 offs while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK) { LOG_DEBUG("called target_alloc_working_area(target=%p buffer_size=%08X source=%p)", - target, buffer_size, source); + target, buffer_size, source); buffer_size /= 2; if (buffer_size <= 256) { /* if we already allocated the writing code, but failed to get a buffer, free the algorithm */ if (write_algorithm) target_free_working_area(target, write_algorithm); - + LOG_WARNING("no large enough working area available, can't do block memory writes"); return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; } }; - + armv7m_info.common_magic = ARMV7M_COMMON_MAGIC; armv7m_info.core_mode = ARMV7M_MODE_ANY; - + init_reg_param(®_params[0], "r0", 32, PARAM_OUT); init_reg_param(®_params[1], "r1", 32, PARAM_OUT); init_reg_param(®_params[2], "r2", 32, PARAM_OUT); - + while (wcount > 0) { u32 thisrun_count = (wcount > (buffer_size / 4)) ? (buffer_size / 4) : wcount; - + target_write_buffer(target, source->address, thisrun_count * 4, buffer); - + buf_set_u32(reg_params[0].value, 0, 32, source->address); buf_set_u32(reg_params[1].value, 0, 32, address); buf_set_u32(reg_params[2].value, 0, 32, 4*thisrun_count); @@ -785,19 +785,19 @@ static int stellaris_write_block(struct flash_bank_s *bank, u8 *buffer, u32 offs retval = ERROR_FLASH_OPERATION_FAILED; break; } - + buffer += thisrun_count * 4; address += thisrun_count * 4; wcount -= thisrun_count; } - + target_free_working_area(target, write_algorithm); target_free_working_area(target, source); - + destroy_reg_param(®_params[0]); destroy_reg_param(®_params[1]); destroy_reg_param(®_params[2]); - + return retval; } @@ -811,7 +811,7 @@ static int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u3 u32 bytes_remaining = (count & 0x00000003); u32 bytes_written = 0; int retval; - + if (bank->target->state != TARGET_HALTED) { LOG_ERROR("Target not halted"); @@ -831,26 +831,26 @@ static int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u3 LOG_WARNING("Cannot identify target as a Stellaris processor"); return ERROR_FLASH_OPERATION_FAILED; } - + if (offset & 0x3) { LOG_WARNING("offset size must be word aligned"); return ERROR_FLASH_DST_BREAKS_ALIGNMENT; } - + if (offset + count > bank->size) return ERROR_FLASH_DST_OUT_OF_BANK; - /* Configure the flash controller timing */ - stellaris_read_clock_info(bank); + /* 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); /* multiple words to be programmed? */ - if (words_remaining > 0) + if (words_remaining > 0) { /* try using a block write */ if ((retval = stellaris_write_block(bank, buffer, offset, words_remaining)) != ERROR_OK) @@ -858,14 +858,14 @@ static int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u3 if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE) { /* if block write failed (no sufficient working area), - * we use normal (slow) single dword accesses */ + * we use normal (slow) single dword accesses */ LOG_WARNING("couldn't use block writes, falling back to single memory accesses"); } else if (retval == ERROR_FLASH_OPERATION_FAILED) { /* if an error occured, we examine the reason, and quit */ target_read_u32(target, FLASH_CRIS, &flash_cris); - + LOG_ERROR("flash writing failed with CRIS: 0x%x", flash_cris); return ERROR_FLASH_OPERATION_FAILED; } @@ -877,12 +877,12 @@ static int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u3 words_remaining = 0; } } - + while (words_remaining > 0) { 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); @@ -893,27 +893,27 @@ static int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u3 { target_read_u32(target, FLASH_FMC, &flash_fmc); } while (flash_fmc & FMC_WRITE); - + buffer += 4; address += 4; words_remaining--; } - + if (bytes_remaining) { u8 last_word[4] = {0xff, 0xff, 0xff, 0xff}; int i = 0; - + while(bytes_remaining > 0) { - last_word[i++] = *(buffer + bytes_written); + last_word[i++] = *(buffer + bytes_written); bytes_remaining--; bytes_written++; } - + 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, last_word); @@ -925,7 +925,7 @@ static int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u3 target_read_u32(target, FLASH_FMC, &flash_fmc); } while (flash_fmc & FMC_WRITE); } - + /* Check access violations */ target_read_u32(target, FLASH_CRIS, &flash_cris); if (flash_cris & (AMASK)) @@ -941,7 +941,7 @@ static int stellaris_probe(struct flash_bank_s *bank) /* we can't probe on an stellaris * if this is an stellaris, it has the configured flash */ - + if (bank->target->state != TARGET_HALTED) { LOG_ERROR("Target not halted"); @@ -965,35 +965,35 @@ static 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) { LOG_ERROR("Target not 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_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 */ @@ -1002,7 +1002,7 @@ static int stellaris_mass_erase(struct flash_bank_s *bank) 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) @@ -1016,7 +1016,7 @@ static int stellaris_mass_erase(struct flash_bank_s *bank) } while (flash_fmc & FMC_MERASE); } - + return ERROR_OK; } @@ -1024,20 +1024,20 @@ static int stellaris_handle_mass_erase_command(struct command_context_s *cmd_ctx { flash_bank_t *bank; int i; - + if (argc < 1) { command_print(cmd_ctx, "stellaris mass_erase <bank>"); - return ERROR_OK; + 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; } - + if (stellaris_mass_erase(bank) == ERROR_OK) { /* set all sectors as erased */ @@ -1045,13 +1045,13 @@ static int stellaris_handle_mass_erase_command(struct command_context_s *cmd_ctx { bank->sectors[i].is_erased = 1; } - + command_print(cmd_ctx, "stellaris mass erase complete"); } else { command_print(cmd_ctx, "stellaris mass erase failed"); } - + return ERROR_OK; } |