X-Git-Url: https://review.openocd.org/gitweb?a=blobdiff_plain;f=src%2Fflash%2Fstm32x.c;h=2ac44c698f4bf7f81b2798c203f3bd5d3efd0926;hb=cbc1f23758fea080c5197c443709b618722c7789;hp=7e26ece3a7de0167684028a93726f475931bacaa;hpb=d47e1b8f362379d8a2307f49e2b42115a3f40524;p=openocd.git diff --git a/src/flash/stm32x.c b/src/flash/stm32x.c index 7e26ece3a7..2ac44c698f 100644 --- a/src/flash/stm32x.c +++ b/src/flash/stm32x.c @@ -2,6 +2,9 @@ * Copyright (C) 2005 by Dominic Rath * * Dominic.Rath@gmx.de * * * + * 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 * @@ -43,7 +46,6 @@ int stm32x_probe(struct flash_bank_s *bank); int stm32x_auto_probe(struct flash_bank_s *bank); int stm32x_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); int stm32x_protect_check(struct flash_bank_s *bank); -int stm32x_erase_check(struct flash_bank_s *bank); int stm32x_info(struct flash_bank_s *bank, char *buf, int buf_size); int stm32x_handle_lock_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); @@ -51,6 +53,7 @@ int stm32x_handle_unlock_command(struct command_context_s *cmd_ctx, char *cmd, c int stm32x_handle_options_read_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); int stm32x_handle_options_write_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); int stm32x_handle_mass_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +int stm32x_mass_erase(struct flash_bank_s *bank); flash_driver_t stm32x_flash = { @@ -62,7 +65,7 @@ flash_driver_t stm32x_flash = .write = stm32x_write, .probe = stm32x_probe, .auto_probe = stm32x_auto_probe, - .erase_check = stm32x_erase_check, + .erase_check = default_flash_mem_blank_check, .protect_check = stm32x_protect_check, .info = stm32x_info }; @@ -123,7 +126,7 @@ u32 stm32x_wait_status_busy(flash_bank_t *bank, int timeout) while (((status = stm32x_get_flash_status(bank)) & FLASH_BSY) && (timeout-- > 0)) { LOG_DEBUG("status: 0x%x", status); - usleep(1000); + alive_sleep(1); } return status; @@ -278,89 +281,94 @@ int stm32x_write_options(struct flash_bank_s *bank) return ERROR_OK; } -int stm32x_blank_check(struct flash_bank_s *bank, int first, int last) -{ - target_t *target = bank->target; - u8 *buffer; - int i; - int nBytes; - - if ((first < 0) || (last > bank->num_sectors)) - return ERROR_FLASH_SECTOR_INVALID; - - if (target->state != TARGET_HALTED) - { - return ERROR_TARGET_NOT_HALTED; - } - - buffer = malloc(256); - - for (i = first; i <= last; i++) - { - bank->sectors[i].is_erased = 1; - - target->type->read_memory(target, bank->base + bank->sectors[i].offset, 4, 256/4, buffer); - - for (nBytes = 0; nBytes < 256; nBytes++) - { - if (buffer[nBytes] != 0xFF) - { - bank->sectors[i].is_erased = 0; - break; - } - } - } - - free(buffer); - - return ERROR_OK; -} - int stm32x_protect_check(struct flash_bank_s *bank) { target_t *target = bank->target; + stm32x_flash_bank_t *stm32x_info = bank->driver_priv; u32 protection; int i, s; int num_bits; - + int set; + if (target->state != TARGET_HALTED) { + LOG_ERROR("Target not halted"); return ERROR_TARGET_NOT_HALTED; } - - /* each bit refers to a 4bank protection */ + + /* medium density - each bit refers to a 4bank protection + * high density - each bit refers to a 2bank protection */ target_read_u32(target, STM32_FLASH_WRPR, &protection); - /* each protection bit is for 4 1K pages */ - num_bits = (bank->num_sectors / 4); + /* medium density - each protection bit is for 4 * 1K pages + * high density - each protection bit is for 2 * 2K pages */ + num_bits = (bank->num_sectors / stm32x_info->ppage_size); - for (i = 0; i < num_bits; i++) + if (stm32x_info->ppage_size == 2) { - int set = 1; + /* high density flash */ - if( protection & (1 << i)) + set = 1; + + if (protection & (1 << 31)) set = 0; - for (s = 0; s < 4; s++) - bank->sectors[(i * 4) + s].is_protected = set; + /* bit 31 controls sector 62 - 255 protection */ + for (s = 62; s < bank->num_sectors; s++) + { + bank->sectors[s].is_protected = set; + } + + if (bank->num_sectors > 61) + num_bits = 31; + + for (i = 0; i < num_bits; i++) + { + set = 1; + + if (protection & (1 << i)) + set = 0; + + for (s = 0; s < stm32x_info->ppage_size; s++) + bank->sectors[(i * stm32x_info->ppage_size) + s].is_protected = set; + } } - + else + { + /* medium density flash */ + for (i = 0; i < num_bits; i++) + { + set = 1; + + if( protection & (1 << i)) + set = 0; + + for (s = 0; s < stm32x_info->ppage_size; s++) + bank->sectors[(i * stm32x_info->ppage_size) + s].is_protected = set; + } + } + return ERROR_OK; } int stm32x_erase(struct flash_bank_s *bank, int first, int last) { target_t *target = bank->target; - int i; u32 status; if (bank->target->state != TARGET_HALTED) { + LOG_ERROR("Target not halted"); return ERROR_TARGET_NOT_HALTED; } - + + if ((first == 0) && (last == (bank->num_sectors - 1))) + { + return stm32x_mass_erase(bank); + } + /* unlock flash registers */ target_write_u32(target, STM32_FLASH_KEYR, KEY1); target_write_u32(target, STM32_FLASH_KEYR, KEY2); @@ -398,16 +406,18 @@ int stm32x_protect(struct flash_bank_s *bank, int set, int first, int last) if (target->state != TARGET_HALTED) { + LOG_ERROR("Target not halted"); return ERROR_TARGET_NOT_HALTED; } - if ((first && (first % 4)) || ((last + 1) && (last + 1) % 4)) + if ((first && (first % stm32x_info->ppage_size)) || ((last + 1) && (last + 1) % stm32x_info->ppage_size)) { - LOG_WARNING("sector start/end incorrect - stm32 has 4K sector protection"); + LOG_WARNING("sector start/end incorrect - stm32 has %dK sector protection", stm32x_info->ppage_size); return ERROR_FLASH_SECTOR_INVALID; } - /* each bit refers to a 4bank protection */ + /* medium density - each bit refers to a 4bank protection + * high density - each bit refers to a 2bank protection */ target_read_u32(target, STM32_FLASH_WRPR, &protection); prot_reg[0] = (u16)protection; @@ -415,15 +425,48 @@ int stm32x_protect(struct flash_bank_s *bank, int set, int first, int last) prot_reg[2] = (u16)(protection >> 16); prot_reg[3] = (u16)(protection >> 24); - for (i = first; i <= last; i++) + if (stm32x_info->ppage_size == 2) { - reg = (i / 4) / 8; - bit = (i / 4) - (reg * 8); + /* high density flash */ - if( set ) - prot_reg[reg] &= ~(1 << bit); - else - prot_reg[reg] |= (1 << bit); + /* bit 7 controls sector 62 - 255 protection */ + if (last > 61) + { + if (set) + prot_reg[3] &= ~(1 << 7); + else + prot_reg[3] |= (1 << 7); + } + + if (first > 61) + first = 62; + if (last > 61) + last = 61; + + for (i = first; i <= last; i++) + { + reg = (i / stm32x_info->ppage_size) / 8; + bit = (i / stm32x_info->ppage_size) - (reg * 8); + + if( set ) + prot_reg[reg] &= ~(1 << bit); + else + prot_reg[reg] |= (1 << bit); + } + } + else + { + /* medium density flash */ + for (i = first; i <= last; i++) + { + reg = (i / stm32x_info->ppage_size) / 8; + bit = (i / stm32x_info->ppage_size) - (reg * 8); + + if( set ) + prot_reg[reg] &= ~(1 << bit); + else + prot_reg[reg] |= (1 << bit); + } } if ((status = stm32x_erase_options(bank)) != ERROR_OK) @@ -465,7 +508,7 @@ int stm32x_write_block(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 co 0x01, 0x3A, /* subs r2, r2, #1 */ 0xED, 0xD1, /* bne write */ /* exit: */ - 0xFE, 0xE7, /* b exit */ + 0xFE, 0xE7, /* b exit */ 0x10, 0x20, 0x02, 0x40, /* STM32_FLASH_CR: .word 0x40022010 */ 0x0C, 0x20, 0x02, 0x40 /* STM32_FLASH_SR: .word 0x4002200C */ }; @@ -477,7 +520,8 @@ int stm32x_write_block(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 co return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; }; - target_write_buffer(target, stm32x_info->write_algorithm->address, sizeof(stm32x_flash_write_code), stm32x_flash_write_code); + if ((retval=target_write_buffer(target, stm32x_info->write_algorithm->address, sizeof(stm32x_flash_write_code), stm32x_flash_write_code))!=ERROR_OK) + return retval; /* memory buffer */ while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK) @@ -496,7 +540,6 @@ int stm32x_write_block(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 co armv7m_info.common_magic = ARMV7M_COMMON_MAGIC; armv7m_info.core_mode = ARMV7M_MODE_ANY; - armv7m_info.core_state = ARMV7M_STATE_THUMB; init_reg_param(®_params[0], "r0", 32, PARAM_OUT); init_reg_param(®_params[1], "r1", 32, PARAM_OUT); @@ -507,7 +550,8 @@ int stm32x_write_block(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 co { u32 thisrun_count = (count > (buffer_size / 2)) ? (buffer_size / 2) : count; - target_write_buffer(target, source->address, thisrun_count * 2, buffer); + if ((retval = target_write_buffer(target, source->address, thisrun_count * 2, buffer))!=ERROR_OK) + break; buf_set_u32(reg_params[0].value, 0, 32, source->address); buf_set_u32(reg_params[1].value, 0, 32, address); @@ -517,6 +561,7 @@ int stm32x_write_block(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 co stm32x_info->write_algorithm->address + (sizeof(stm32x_flash_write_code) - 10), 10000, &armv7m_info)) != ERROR_OK) { LOG_ERROR("error executing stm32x flash write algorithm"); + retval = ERROR_FLASH_OPERATION_FAILED; break; } @@ -554,6 +599,7 @@ int stm32x_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count) if (bank->target->state != TARGET_HALTED) { + LOG_ERROR("Target not halted"); return ERROR_TARGET_NOT_HALTED; } @@ -643,11 +689,13 @@ int stm32x_probe(struct flash_bank_s *bank) target_t *target = bank->target; stm32x_flash_bank_t *stm32x_info = bank->driver_priv; int i; - u16 num_sectors; + u16 num_pages; u32 device_id; + int page_size; if (bank->target->state != TARGET_HALTED) { + LOG_ERROR("Target not halted"); return ERROR_TARGET_NOT_HALTED; } @@ -657,34 +705,93 @@ int stm32x_probe(struct flash_bank_s *bank) target_read_u32(target, 0xE0042000, &device_id); LOG_INFO( "device id = 0x%08x", device_id ); - if (!(device_id & 0x410)) - { - LOG_WARNING( "Cannot identify target as a STM32 family." ); - return ERROR_FLASH_OPERATION_FAILED; - } - /* get flash size from target */ - target_read_u16(target, 0x1FFFF7E0, &num_sectors); + if (target_read_u16(target, 0x1FFFF7E0, &num_pages) != ERROR_OK) + { + /* failed reading flash size, default to max target family */ + num_pages = 0xffff; + } - /* check for early silicon rev A */ - if ((device_id >> 16) == 0 ) + if ((device_id & 0x7ff) == 0x410) { - /* number of sectors incorrect on revA */ - LOG_WARNING( "STM32 Rev A Silicon detected, probe inaccurate - assuming 128k flash" ); - num_sectors = 128; + /* medium density - we have 1k pages + * 4 pages for a protection area */ + page_size = 1024; + stm32x_info->ppage_size = 4; + + /* check for early silicon */ + if (num_pages == 0xffff) + { + /* number of sectors incorrect on revA */ + LOG_WARNING( "STM32 flash size failed, probe inaccurate - assuming 128k flash" ); + num_pages = 128; + } + } + else if ((device_id & 0x7ff) == 0x412) + { + /* low density - we have 1k pages + * 4 pages for a protection area */ + page_size = 1024; + stm32x_info->ppage_size = 4; + + /* check for early silicon */ + if (num_pages == 0xffff) + { + /* number of sectors incorrect on revA */ + LOG_WARNING( "STM32 flash size failed, probe inaccurate - assuming 32k flash" ); + num_pages = 32; + } + } + else if ((device_id & 0x7ff) == 0x414) + { + /* high density - we have 2k pages + * 2 pages for a protection area */ + page_size = 2048; + stm32x_info->ppage_size = 2; + + /* check for early silicon */ + if (num_pages == 0xffff) + { + /* number of sectors incorrect on revZ */ + LOG_WARNING( "STM32 flash size failed, probe inaccurate - assuming 512k flash" ); + num_pages = 512; + } + } + else if ((device_id & 0x7ff) == 0x418) + { + /* connectivity line density - we have 1k pages + * 4 pages for a protection area */ + page_size = 1024; + stm32x_info->ppage_size = 4; + + /* check for early silicon */ + if (num_pages == 0xffff) + { + /* number of sectors incorrect on revZ */ + LOG_WARNING( "STM32 flash size failed, probe inaccurate - assuming 256k flash" ); + num_pages = 256; + } + } + else + { + LOG_WARNING( "Cannot identify target as a STM32 family." ); + return ERROR_FLASH_OPERATION_FAILED; } - LOG_INFO( "flash size = %dkbytes", num_sectors ); + LOG_INFO( "flash size = %dkbytes", num_pages ); + + /* calculate numbers of pages */ + num_pages /= (page_size / 1024); bank->base = 0x08000000; - bank->size = num_sectors * 1024; - bank->num_sectors = num_sectors; - bank->sectors = malloc(sizeof(flash_sector_t) * num_sectors); + bank->size = (num_pages * page_size); + bank->num_sectors = num_pages; + bank->sectors = malloc(sizeof(flash_sector_t) * num_pages); - for (i = 0; i < num_sectors; i++) + for (i = 0; i < num_pages; i++) { - bank->sectors[i].offset = i * 1024; - bank->sectors[i].size = 1024; + bank->sectors[i].offset = i * page_size; + bank->sectors[i].size = page_size; bank->sectors[i].is_erased = -1; bank->sectors[i].is_protected = 1; } @@ -707,14 +814,105 @@ int stm32x_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, return ERROR_OK; } -int stm32x_erase_check(struct flash_bank_s *bank) -{ - return stm32x_blank_check(bank, 0, bank->num_sectors - 1); -} - int stm32x_info(struct flash_bank_s *bank, char *buf, int buf_size) { - snprintf(buf, buf_size, "stm32x flash driver info" ); + target_t *target = bank->target; + u32 device_id; + int printed; + + /* read stm32 device id register */ + target_read_u32(target, 0xE0042000, &device_id); + + if ((device_id & 0x7ff) == 0x410) + { + printed = snprintf(buf, buf_size, "stm32x (Medium Density) - Rev: "); + buf += printed; + buf_size -= printed; + + switch(device_id >> 16) + { + case 0x0000: + snprintf(buf, buf_size, "A"); + break; + + case 0x2000: + snprintf(buf, buf_size, "B"); + break; + + case 0x2001: + snprintf(buf, buf_size, "Z"); + break; + + case 0x2003: + snprintf(buf, buf_size, "Y"); + break; + + default: + snprintf(buf, buf_size, "unknown"); + break; + } + } + else if ((device_id & 0x7ff) == 0x412) + { + printed = snprintf(buf, buf_size, "stm32x (Low Density) - Rev: "); + buf += printed; + buf_size -= printed; + + switch(device_id >> 16) + { + case 0x1000: + snprintf(buf, buf_size, "A"); + break; + + default: + snprintf(buf, buf_size, "unknown"); + break; + } + } + else if ((device_id & 0x7ff) == 0x414) + { + printed = snprintf(buf, buf_size, "stm32x (High Density) - Rev: "); + buf += printed; + buf_size -= printed; + + switch(device_id >> 16) + { + case 0x1000: + snprintf(buf, buf_size, "A"); + break; + + case 0x1001: + snprintf(buf, buf_size, "Z"); + break; + + default: + snprintf(buf, buf_size, "unknown"); + break; + } + } + else if ((device_id & 0x7ff) == 0x418) + { + printed = snprintf(buf, buf_size, "stm32x (Connectivity) - Rev: "); + buf += printed; + buf_size -= printed; + + switch(device_id >> 16) + { + case 0x1000: + snprintf(buf, buf_size, "A"); + break; + + default: + snprintf(buf, buf_size, "unknown"); + break; + } + } + else + { + snprintf(buf, buf_size, "Cannot identify target as a stm32x\n"); + return ERROR_FLASH_OPERATION_FAILED; + } + return ERROR_OK; } @@ -743,6 +941,7 @@ int stm32x_handle_lock_command(struct command_context_s *cmd_ctx, char *cmd, cha if (target->state != TARGET_HALTED) { + LOG_ERROR("Target not halted"); return ERROR_TARGET_NOT_HALTED; } @@ -791,6 +990,7 @@ int stm32x_handle_unlock_command(struct command_context_s *cmd_ctx, char *cmd, c if (target->state != TARGET_HALTED) { + LOG_ERROR("Target not halted"); return ERROR_TARGET_NOT_HALTED; } @@ -837,6 +1037,7 @@ int stm32x_handle_options_read_command(struct command_context_s *cmd_ctx, char * if (target->state != TARGET_HALTED) { + LOG_ERROR("Target not halted"); return ERROR_TARGET_NOT_HALTED; } @@ -879,7 +1080,7 @@ int stm32x_handle_options_write_command(struct command_context_s *cmd_ctx, char if (argc < 4) { command_print(cmd_ctx, "stm32x options_write "); - return ERROR_OK; + return ERROR_OK; } bank = get_flash_bank_by_num(strtoul(args[0], NULL, 0)); @@ -895,6 +1096,7 @@ int stm32x_handle_options_write_command(struct command_context_s *cmd_ctx, char if (target->state != TARGET_HALTED) { + LOG_ERROR("Target not halted"); return ERROR_TARGET_NOT_HALTED; } @@ -944,32 +1146,14 @@ int stm32x_handle_options_write_command(struct command_context_s *cmd_ctx, char return ERROR_OK; } -int stm32x_handle_mass_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +int stm32x_mass_erase(struct flash_bank_s *bank) { - target_t *target = NULL; - stm32x_flash_bank_t *stm32x_info = NULL; - flash_bank_t *bank; + target_t *target = bank->target; u32 status; - if (argc < 1) - { - command_print(cmd_ctx, "stm32x 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; - } - - stm32x_info = bank->driver_priv; - - target = bank->target; - if (target->state != TARGET_HALTED) { + LOG_ERROR("Target not halted"); return ERROR_TARGET_NOT_HALTED; } @@ -987,17 +1171,51 @@ int stm32x_handle_mass_erase_command(struct command_context_s *cmd_ctx, char *cm if( status & FLASH_WRPRTERR ) { - command_print(cmd_ctx, "stm32x device protected"); + LOG_ERROR("stm32x device protected"); return ERROR_OK; } if( status & FLASH_PGERR ) { - command_print(cmd_ctx, "stm32x device programming failed"); + LOG_ERROR("stm32x device programming failed"); + return ERROR_OK; + } + + return ERROR_OK; +} + +int stm32x_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, "stm32x 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; } - command_print(cmd_ctx, "stm32x mass erase complete"); + if (stm32x_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, "stm32x mass erase complete"); + } + else + { + command_print(cmd_ctx, "stm32x mass erase failed"); + } return ERROR_OK; }