* 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 *
while (((status = stm32x_get_flash_status(bank)) & FLASH_BSY) && (timeout-- > 0))
{
LOG_DEBUG("status: 0x%x", status);
- usleep(1000);
+ alive_sleep(1);
}
return status;
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;
}
* 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 */
+
+ set = 1;
- if( protection & (1 << i))
+ if (protection & (1 << 31))
set = 0;
- for (s = 0; s < stm32x_info->ppage_size; s++)
- bank->sectors[(i * stm32x_info->ppage_size) + 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;
}
if (bank->target->state != TARGET_HALTED)
{
+ LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
if (target->state != TARGET_HALTED)
{
+ LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
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 / stm32x_info->ppage_size) / 8;
- bit = (i / stm32x_info->ppage_size) - (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)
if (bank->target->state != TARGET_HALTED)
{
+ LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
if (bank->target->state != TARGET_HALTED)
{
+ LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
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
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
+ {
+ snprintf(buf, buf_size, "Cannot identify target as a stm32x\n");
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+
return ERROR_OK;
}
if (target->state != TARGET_HALTED)
{
+ LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
if (target->state != TARGET_HALTED)
{
+ LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
if (target->state != TARGET_HALTED)
{
+ LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
if (argc < 4)
{
command_print(cmd_ctx, "stm32x options_write <bank> <SWWDG|HWWDG> <RSTSTNDBY|NORSTSTNDBY> <RSTSTOP|NORSTSTOP>");
- return ERROR_OK;
+ return ERROR_OK;
}
bank = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
if (target->state != TARGET_HALTED)
{
+ LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
if (target->state != TARGET_HALTED)
{
+ LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}