X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=src%2Fflash%2Fstellaris.c;h=657d62f941e8490446eb5f362b5c52b090e77f51;hb=93180753be73daa7bf90e02585a7192fa6960a96;hp=efcd7818c9b488b0cb55634aa1641ec14402525e;hpb=6eb2264d5669c64d87bb26ad079e953423e87ff5;p=openocd diff --git a/src/flash/stellaris.c b/src/flash/stellaris.c index efcd7818..657d62f9 100644 --- a/src/flash/stellaris.c +++ b/src/flash/stellaris.c @@ -2,6 +2,9 @@ * Copyright (C) 2006 by Magnus Lundin * * lundin@mlu.mine.nu * * * + * Copyright (C) 2008 by Spencer Oliver * + * spen@spen-soft.co.uk * + * * * This program is free software; you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * * the Free Software Foundation; either version 2 of the License, or * @@ -19,7 +22,7 @@ ***************************************************************************/ /*************************************************************************** -* STELLARIS is tested on LM3S811 +* STELLARIS is tested on LM3S811, LM3S6965 ***************************************************************************/ #ifdef HAVE_CONFIG_H #include "config.h" @@ -48,7 +51,6 @@ 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 +60,8 @@ 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 +73,7 @@ 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_mem_blank_check, .protect_check = stellaris_protect_check, .info = stellaris_info }; @@ -81,6 +85,11 @@ struct { { {0x01,"LM3S101"}, {0x02,"LM3S102"}, + {0x03,"LM3S1625"}, + {0x04,"LM3S1626"}, + {0x05,"LM3S1627"}, + {0x06,"LM3S1607"}, + {0x10,"LM3S1776"}, {0x19,"LM3S300"}, {0x11,"LM3S301"}, {0x12,"LM3S310"}, @@ -106,10 +115,20 @@ struct { {0x39,"LM3S808"}, {0x32,"LM3S811"}, {0x33,"LM3S812"}, + /*{0x33,"LM3S2616"},*/ {0x34,"LM3S815"}, {0x36,"LM3S817"}, {0x37,"LM3S818"}, {0x35,"LM3S828"}, + {0x39,"LM3S2276"}, + {0x3A,"LM3S2776"}, + {0x43,"LM3S3651"}, + {0x44,"LM3S3739"}, + {0x45,"LM3S3749"}, + {0x46,"LM3S3759"}, + {0x48,"LM3S3768"}, + {0x49,"LM3S3748"}, + {0x50,"LM3S2678"}, {0x51,"LM3S2110"}, {0x52,"LM3S2739"}, {0x53,"LM3S2651"}, @@ -133,6 +152,8 @@ struct { {0x76,"LM3S6537"}, {0x77,"LM3S6753"}, {0x78,"LM3S6952"}, + {0x80,"LM3S2671"}, + {0x81,"LM3S5632"}, {0x82,"LM3S6422"}, {0x83,"LM3S6633"}, {0x84,"LM3S2139"}, @@ -140,17 +161,30 @@ struct { {0x86,"LM3S8738"}, {0x88,"LM3S8938"}, {0x89,"LM3S6938"}, + {0x8A,"LM3S5652"}, {0x8B,"LM3S6637"}, {0x8C,"LM3S8933"}, {0x8D,"LM3S8733"}, {0x8E,"LM3S8538"}, {0x8F,"LM3S2948"}, + {0x91,"LM3S5662"}, + {0x96,"LM3S5732"}, + {0x97,"LM3S5737"}, + {0x99,"LM3S5747"}, + {0x9A,"LM3S5752"}, + {0x9B,"LM3S5757"}, + {0x9C,"LM3S5762"}, + {0x9D,"LM3S5767"}, + {0xA0,"LM3S5739"}, {0xA1,"LM3S6100"}, {0xA2,"LM3S2410"}, {0xA3,"LM3S6730"}, {0xA4,"LM3S2730"}, {0xA5,"LM3S6420"}, {0xA6,"LM3S8962"}, + {0xA7,"LM3S5749"}, + {0xA8,"LM3S5769"}, + {0xA9,"LM3S5768"}, {0xB3,"LM3S1635"}, {0xB4,"LM3S1850"}, {0xB5,"LM3S1960"}, @@ -200,10 +234,13 @@ struct { {0,"Unknown part"} }; -char * StellarisClassname[2] = +char * StellarisClassname[5] = { "Sandstorm", - "Fury" + "Fury", + "Unknown", + "DustDevil", + "Tempest" }; /*************************************************************************** @@ -222,7 +259,7 @@ 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; @@ -237,11 +274,9 @@ 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; } @@ -260,9 +295,9 @@ 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 { @@ -270,20 +305,21 @@ 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); + 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; - printed = snprintf(buf, buf_size, "master clock(estimated): %ikHz, rcc is 0x%x \n", stellaris_info->mck_freq / 1000, stellaris_info->rcc); + printed = snprintf(buf, buf_size, "master clock(estimated): %ikHz, rcc is 0x%x \n", stellaris_info->mck_freq / 1000, stellaris_info->rcc); buf += printed; buf_size -= printed; - if (stellaris_info->num_lockbits>0) { + if (stellaris_info->num_lockbits>0) + { printed = snprintf(buf, buf_size, "pagesize: %i, lockbits: %i 0x%4.4x, pages in lock region: %i \n", stellaris_info->pagesize, stellaris_info->num_lockbits, stellaris_info->lockbits,stellaris_info->num_pages/stellaris_info->num_lockbits); buf += printed; buf_size -= printed; @@ -315,15 +351,15 @@ 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) { @@ -355,7 +391,7 @@ 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 */ @@ -366,8 +402,7 @@ 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) @@ -378,7 +413,7 @@ u32 stellaris_wait_status_busy(flash_bank_t *bank, u32 waitbits, int timeout) while (((status = stellaris_get_flash_status(bank)) & waitbits) && (timeout-- > 0)) { LOG_DEBUG("status: 0x%x", status); - usleep(1000); + alive_sleep(1); } /* Flash errors are reflected in the FLASH_CRIS register */ @@ -409,7 +444,7 @@ 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 */ @@ -417,7 +452,7 @@ 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)) @@ -439,9 +474,9 @@ 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; } @@ -450,10 +485,10 @@ 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); @@ -462,7 +497,7 @@ 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; @@ -480,19 +515,6 @@ 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; @@ -501,6 +523,7 @@ int stellaris_protect_check(struct flash_bank_s *bank) if (bank->target->state != TARGET_HALTED) { + LOG_ERROR("Target not halted"); return ERROR_TARGET_NOT_HALTED; } @@ -530,6 +553,7 @@ int stellaris_erase(struct flash_bank_s *bank, int first, int last) if (bank->target->state != TARGET_HALTED) { + LOG_ERROR("Target not halted"); return ERROR_TARGET_NOT_HALTED; } @@ -548,7 +572,12 @@ 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); @@ -556,38 +585,11 @@ 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++) + + for (banknr = first; banknr <= last; banknr++) { /* Address is first word in page */ - target_write_u32(target, FLASH_FMA, banknr*stellaris_info->pagesize); + target_write_u32(target, FLASH_FMA, banknr * stellaris_info->pagesize); /* Write erase command */ target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_ERASE); /* Wait until erase complete */ @@ -622,6 +624,7 @@ int stellaris_protect(struct flash_bank_s *bank, int set, int first, int last) if (bank->target->state != TARGET_HALTED) { + LOG_ERROR("Target not halted"); return ERROR_TARGET_NOT_HALTED; } @@ -643,15 +646,15 @@ 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; } @@ -734,19 +737,19 @@ int stellaris_write_block(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 working_area_t *source; working_area_t *write_algorithm; u32 address = bank->base + offset; - reg_param_t reg_params[8]; + reg_param_t reg_params[3]; armv7m_algorithm_t armv7m_info; - int retval; + int retval = ERROR_OK; LOG_DEBUG("(bank=%p buffer=%p offset=%08X wcount=%08X)", bank, buffer, offset, wcount); /* flash write code */ if (target_alloc_working_area(target, sizeof(stellaris_write_code), &write_algorithm) != ERROR_OK) - { - LOG_WARNING("no working area available, can't do block memory writes"); - return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; - }; + { + LOG_WARNING("no working area available, can't do block memory writes"); + return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; + }; target_write_buffer(target, write_algorithm->address, sizeof(stellaris_write_code), stellaris_write_code); @@ -773,12 +776,7 @@ int stellaris_write_block(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 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); - init_reg_param(®_params[3], "r3", 32, PARAM_OUT); - init_reg_param(®_params[4], "r4", 32, PARAM_OUT); - init_reg_param(®_params[5], "r5", 32, PARAM_OUT); - init_reg_param(®_params[6], "r6", 32, PARAM_OUT); - init_reg_param(®_params[7], "r7", 32, PARAM_OUT); - + while (wcount > 0) { u32 thisrun_count = (wcount > (buffer_size / 4)) ? (buffer_size / 4) : wcount; @@ -788,16 +786,13 @@ int stellaris_write_block(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 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); - LOG_WARNING("Algorithm flash write %i words to 0x%x, %i remaining",thisrun_count,address, wcount); - LOG_DEBUG("Algorithm flash write %i words to 0x%x, %i remaining",thisrun_count,address, wcount); + LOG_INFO("Algorithm flash write %i words to 0x%x, %i remaining", thisrun_count, address, wcount); + LOG_DEBUG("Algorithm flash write %i words to 0x%x, %i remaining", thisrun_count, address, wcount); if ((retval = target->type->run_algorithm(target, 0, NULL, 3, reg_params, write_algorithm->address, write_algorithm->address + sizeof(stellaris_write_code)-10, 10000, &armv7m_info)) != ERROR_OK) { LOG_ERROR("error executing stellaris flash write algorithm"); - target_free_working_area(target, source); - destroy_reg_param(®_params[0]); - destroy_reg_param(®_params[1]); - destroy_reg_param(®_params[2]); - return ERROR_FLASH_OPERATION_FAILED; + retval = ERROR_FLASH_OPERATION_FAILED; + break; } buffer += thisrun_count * 4; @@ -805,20 +800,14 @@ 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); destroy_reg_param(®_params[0]); destroy_reg_param(®_params[1]); destroy_reg_param(®_params[2]); - destroy_reg_param(®_params[3]); - destroy_reg_param(®_params[4]); - destroy_reg_param(®_params[5]); - destroy_reg_param(®_params[6]); - destroy_reg_param(®_params[7]); - return ERROR_OK; + return retval; } int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count) @@ -826,11 +815,15 @@ int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count stellaris_flash_bank_t *stellaris_info = bank->driver_priv; target_t *target = bank->target; u32 address = offset; - u32 flash_cris,flash_fmc; + u32 flash_cris, flash_fmc; + u32 words_remaining = (count / 4); + u32 bytes_remaining = (count & 0x00000003); + u32 bytes_written = 0; u32 retval; if (bank->target->state != TARGET_HALTED) { + LOG_ERROR("Target not halted"); return ERROR_TARGET_NOT_HALTED; } @@ -848,7 +841,7 @@ int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count return ERROR_FLASH_OPERATION_FAILED; } - if((offset & 3) || (count & 3)) + if (offset & 0x3) { LOG_WARNING("offset size must be word aligned"); return ERROR_FLASH_DST_BREAKS_ALIGNMENT; @@ -859,18 +852,17 @@ 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 */ target_write_u32(target, FLASH_CIM, 0); target_write_u32(target, FLASH_MISC, PMISC|AMISC); /* multiple words to be programmed? */ - if (count > 0) + if (words_remaining > 0) { /* try using a block write */ - if ((retval = stellaris_write_block(bank, buffer, offset, count/4)) != ERROR_OK) + if ((retval = stellaris_write_block(bank, buffer, offset, words_remaining)) != ERROR_OK) { if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE) { @@ -889,15 +881,17 @@ int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count } else { - buffer += count * 4; - address += count * 4; - count = 0; + buffer += words_remaining * 4; + address += words_remaining * 4; + words_remaining = 0; } } - while(count>0) + while (words_remaining > 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); @@ -907,15 +901,43 @@ int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count do { target_read_u32(target, FLASH_FMC, &flash_fmc); - } - while(flash_fmc & FMC_WRITE); + } while (flash_fmc & FMC_WRITE); + buffer += 4; address += 4; - count -= 4; + words_remaining--; } - /* Check acess violations */ + + if (bytes_remaining) + { + u8 last_word[4] = {0xff, 0xff, 0xff, 0xff}; + int i = 0; + + while(bytes_remaining > 0) + { + 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); + target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_WRITE); + /* LOG_DEBUG("0x%x 0x%x 0x%x",address,buf_get_u32(buffer, 0, 32),FMC_WRKEY | FMC_WRITE); */ + /* Wait until write complete */ + do + { + 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)) + if (flash_cris & (AMASK)) { LOG_DEBUG("flash_cris 0x%x", flash_cris); return ERROR_FLASH_OPERATION_FAILED; @@ -931,6 +953,7 @@ int stellaris_probe(struct flash_bank_s *bank) if (bank->target->state != TARGET_HALTED) { + LOG_ERROR("Target not halted"); return ERROR_TARGET_NOT_HALTED; } @@ -945,3 +968,99 @@ 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) + { + 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_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; + } + + if (stellaris_mass_erase(bank) == ERROR_OK) + { + /* 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"); + } + else + { + command_print(cmd_ctx, "stellaris mass erase failed"); + } + + return ERROR_OK; +}