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- reset_run now works as expected on cortex-m3

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- str9xpec erase status checked on option byte programming
- stm32x flash driver now supports sector protection
- surplus exit removed from flash.c
- openocd.texi documentation added

git-svn-id: svn://svn.berlios.de/openocd/trunk@212 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
ntfreak
2007-11-21 16:37:17 +00:00
parent 89d0e422c9
commit 8c634335b4
11 changed files with 2331 additions and 125 deletions
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360
src/flash/stm32x.c
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@@ -169,6 +169,155 @@ u32 stm32x_wait_status_busy(flash_bank_t *bank, int timeout)
return status;
}
int stm32x_read_options(struct flash_bank_s *bank)
{
u32 optiondata;
stm32x_flash_bank_t *stm32x_info = NULL;
target_t *target = bank->target;
stm32x_info = bank->driver_priv;
/* read current option bytes */
target_read_u32(target, STM32_FLASH_OBR, &optiondata);
stm32x_info->option_bytes.user_options = (u16)0xFFF8|((optiondata >> 2) & 0x07);
stm32x_info->option_bytes.RDP = (optiondata & (1 << OPT_READOUT)) ? 0xFFFF : 0x5AA5;
if (optiondata & (1 << OPT_READOUT))
INFO("Device Security Bit Set");
/* each bit refers to a 4bank protection */
target_read_u32(target, STM32_FLASH_WRPR, &optiondata);
stm32x_info->option_bytes.protection[0] = (u16)optiondata;
stm32x_info->option_bytes.protection[1] = (u16)(optiondata >> 8);
stm32x_info->option_bytes.protection[2] = (u16)(optiondata >> 16);
stm32x_info->option_bytes.protection[3] = (u16)(optiondata >> 24);
return ERROR_OK;
}
int stm32x_erase_options(struct flash_bank_s *bank)
{
stm32x_flash_bank_t *stm32x_info = NULL;
target_t *target = bank->target;
u32 status;
stm32x_info = bank->driver_priv;
/* read current options */
stm32x_read_options(bank);
/* unlock flash registers */
target_write_u32(target, STM32_FLASH_KEYR, KEY1);
target_write_u32(target, STM32_FLASH_KEYR, KEY2);
/* unlock option flash registers */
target_write_u32(target, STM32_FLASH_OPTKEYR, KEY1);
target_write_u32(target, STM32_FLASH_OPTKEYR, KEY2);
/* erase option bytes */
target_write_u32(target, STM32_FLASH_CR, FLASH_OPTER|FLASH_OPTWRE);
target_write_u32(target, STM32_FLASH_CR, FLASH_OPTER|FLASH_STRT|FLASH_OPTWRE);
status = stm32x_wait_status_busy(bank, 10);
if( status & FLASH_WRPRTERR )
return ERROR_FLASH_OPERATION_FAILED;
if( status & FLASH_PGERR )
return ERROR_FLASH_OPERATION_FAILED;
/* clear readout protection and complementary option bytes
* this will also force a device unlock if set */
stm32x_info->option_bytes.RDP = 0x5AA5;
return ERROR_OK;
}
int stm32x_write_options(struct flash_bank_s *bank)
{
stm32x_flash_bank_t *stm32x_info = NULL;
target_t *target = bank->target;
u32 status;
stm32x_info = bank->driver_priv;
/* unlock flash registers */
target_write_u32(target, STM32_FLASH_KEYR, KEY1);
target_write_u32(target, STM32_FLASH_KEYR, KEY2);
/* unlock option flash registers */
target_write_u32(target, STM32_FLASH_OPTKEYR, KEY1);
target_write_u32(target, STM32_FLASH_OPTKEYR, KEY2);
/* program option bytes */
target_write_u32(target, STM32_FLASH_CR, FLASH_OPTPG|FLASH_OPTWRE);
/* write user option byte */
target_write_u16(target, STM32_OB_USER, stm32x_info->option_bytes.user_options);
status = stm32x_wait_status_busy(bank, 10);
if( status & FLASH_WRPRTERR )
return ERROR_FLASH_OPERATION_FAILED;
if( status & FLASH_PGERR )
return ERROR_FLASH_OPERATION_FAILED;
/* write protection byte 1 */
target_write_u16(target, STM32_OB_WRP0, stm32x_info->option_bytes.protection[0]);
status = stm32x_wait_status_busy(bank, 10);
if( status & FLASH_WRPRTERR )
return ERROR_FLASH_OPERATION_FAILED;
if( status & FLASH_PGERR )
return ERROR_FLASH_OPERATION_FAILED;
/* write protection byte 2 */
target_write_u16(target, STM32_OB_WRP1, stm32x_info->option_bytes.protection[1]);
status = stm32x_wait_status_busy(bank, 10);
if( status & FLASH_WRPRTERR )
return ERROR_FLASH_OPERATION_FAILED;
if( status & FLASH_PGERR )
return ERROR_FLASH_OPERATION_FAILED;
/* write protection byte 3 */
target_write_u16(target, STM32_OB_WRP2, stm32x_info->option_bytes.protection[2]);
status = stm32x_wait_status_busy(bank, 10);
if( status & FLASH_WRPRTERR )
return ERROR_FLASH_OPERATION_FAILED;
if( status & FLASH_PGERR )
return ERROR_FLASH_OPERATION_FAILED;
/* write protection byte 4 */
target_write_u16(target, STM32_OB_WRP3, stm32x_info->option_bytes.protection[3]);
status = stm32x_wait_status_busy(bank, 10);
if( status & FLASH_WRPRTERR )
return ERROR_FLASH_OPERATION_FAILED;
if( status & FLASH_PGERR )
return ERROR_FLASH_OPERATION_FAILED;
/* write readout protection bit */
target_write_u16(target, STM32_OB_RDP, stm32x_info->option_bytes.RDP);
status = stm32x_wait_status_busy(bank, 10);
if( status & FLASH_WRPRTERR )
return ERROR_FLASH_OPERATION_FAILED;
if( status & FLASH_PGERR )
return ERROR_FLASH_OPERATION_FAILED;
target_write_u32(target, STM32_FLASH_CR, FLASH_LOCK);
return ERROR_OK;
}
int stm32x_blank_check(struct flash_bank_s *bank, int first, int last)
{
target_t *target = bank->target;
@@ -213,6 +362,7 @@ int stm32x_protect_check(struct flash_bank_s *bank)
u32 protection;
int i, s;
int num_bits;
if (target->state != TARGET_HALTED)
{
@@ -222,7 +372,10 @@ int stm32x_protect_check(struct flash_bank_s *bank)
/* each bit refers to a 4bank protection */
target_read_u32(target, STM32_FLASH_WRPR, &protection);
for (i = 0; i < 32; i++)
/* each protection bit is for 4 1K pages */
num_bits = (bank->num_sectors / 4);
for (i = 0; i < num_bits; i++)
{
int set = 1;
@@ -243,15 +396,15 @@ int stm32x_erase(struct flash_bank_s *bank, int first, int last)
int i;
u32 status;
/* unlock flash registers */
target_write_u32(target, STM32_FLASH_KEYR, KEY1);
target_write_u32(target, STM32_FLASH_KEYR, KEY2);
if (target->state != TARGET_HALTED)
{
return ERROR_TARGET_NOT_HALTED;
}
/* unlock flash registers */
target_write_u32(target, STM32_FLASH_KEYR, KEY1);
target_write_u32(target, STM32_FLASH_KEYR, KEY2);
for (i = first; i <= last; i++)
{
target_write_u32(target, STM32_FLASH_CR, FLASH_PER);
@@ -274,14 +427,54 @@ int stm32x_erase(struct flash_bank_s *bank, int first, int last)
int stm32x_protect(struct flash_bank_s *bank, int set, int first, int last)
{
stm32x_flash_bank_t *stm32x_info = NULL;
target_t *target = bank->target;
u16 prot_reg[4] = {0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF};
int i, reg, bit;
int status;
u32 protection;
stm32x_info = bank->driver_priv;
if (target->state != TARGET_HALTED)
{
return ERROR_TARGET_NOT_HALTED;
}
return ERROR_OK;
if ((first && (first % 4)) || ((last + 1) && (last + 1) % 4))
{
WARNING("sector start/end incorrect - stm32 has 4K sector protection");
return ERROR_FLASH_SECTOR_INVALID;
}
/* each bit refers to a 4bank protection */
target_read_u32(target, STM32_FLASH_WRPR, &protection);
prot_reg[0] = (u16)protection;
prot_reg[1] = (u16)(protection >> 8);
prot_reg[2] = (u16)(protection >> 16);
prot_reg[3] = (u16)(protection >> 24);
for (i = first; i <= last; i++)
{
reg = (i / 4) / 8;
bit = (i / 4) - (reg * 8);
if( set )
prot_reg[reg] &= ~(1 << bit);
else
prot_reg[reg] |= (1 << bit);
}
if ((status = stm32x_erase_options(bank)) != ERROR_OK)
return status;
stm32x_info->option_bytes.protection[0] = prot_reg[0];
stm32x_info->option_bytes.protection[1] = prot_reg[1];
stm32x_info->option_bytes.protection[2] = prot_reg[2];
stm32x_info->option_bytes.protection[3] = prot_reg[3];
return stm32x_write_options(bank);
}
int stm32x_write_block(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
@@ -509,7 +702,6 @@ 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)
{
flash_bank_t *bank;
u32 status;
target_t *target = NULL;
stm32x_flash_bank_t *stm32x_info = NULL;
@@ -535,39 +727,21 @@ int stm32x_handle_lock_command(struct command_context_s *cmd_ctx, char *cmd, cha
return ERROR_TARGET_NOT_HALTED;
}
/* unlock flash registers */
target_write_u32(target, STM32_FLASH_KEYR, KEY1);
target_write_u32(target, STM32_FLASH_KEYR, KEY2);
if (stm32x_erase_options(bank) != ERROR_OK)
{
command_print(cmd_ctx, "stm32x failed to erase options");
return ERROR_OK;
}
/* set readout protection */
stm32x_info->option_bytes.RDP = 0;
/* unlock option flash registers */
target_write_u32(target, STM32_FLASH_OPTKEYR, KEY1);
target_write_u32(target, STM32_FLASH_OPTKEYR, KEY2);
if (stm32x_write_options(bank) != ERROR_OK)
{
command_print(cmd_ctx, "stm32x failed to lock device");
return ERROR_OK;
}
/* erase option bytes */
target_write_u32(target, STM32_FLASH_CR, FLASH_OPTER|FLASH_OPTWRE);
target_write_u32(target, STM32_FLASH_CR, FLASH_OPTER|FLASH_STRT|FLASH_OPTWRE);
status = stm32x_wait_status_busy(bank, 10);
if( status & FLASH_WRPRTERR )
return ERROR_FLASH_OPERATION_FAILED;
if( status & FLASH_PGERR )
return ERROR_FLASH_OPERATION_FAILED;
/* program option bytes */
target_write_u32(target, STM32_FLASH_CR, FLASH_OPTPG|FLASH_OPTWRE);
/* set readout protection */
target_write_u16(target, STM32_OB_ADR, 0);
status = stm32x_wait_status_busy(bank, 10);
if( status & FLASH_WRPRTERR )
return ERROR_FLASH_OPERATION_FAILED;
if( status & FLASH_PGERR )
return ERROR_FLASH_OPERATION_FAILED;
target_write_u32(target, STM32_FLASH_CR, FLASH_LOCK);
command_print(cmd_ctx, "stm32x locked");
return ERROR_OK;
@@ -576,7 +750,6 @@ int stm32x_handle_lock_command(struct command_context_s *cmd_ctx, char *cmd, cha
int stm32x_handle_unlock_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
flash_bank_t *bank;
u32 status;
target_t *target = NULL;
stm32x_flash_bank_t *stm32x_info = NULL;
@@ -601,40 +774,19 @@ int stm32x_handle_unlock_command(struct command_context_s *cmd_ctx, char *cmd, c
{
return ERROR_TARGET_NOT_HALTED;
}
if (stm32x_erase_options(bank) != ERROR_OK)
{
command_print(cmd_ctx, "stm32x failed to unlock device");
return ERROR_OK;
}
/* unlock flash registers */
target_write_u32(target, STM32_FLASH_KEYR, KEY1);
target_write_u32(target, STM32_FLASH_KEYR, KEY2);
if (stm32x_write_options(bank) != ERROR_OK)
{
command_print(cmd_ctx, "stm32x failed to lock device");
return ERROR_OK;
}
/* unlock option flash registers */
target_write_u32(target, STM32_FLASH_OPTKEYR, KEY1);
target_write_u32(target, STM32_FLASH_OPTKEYR, KEY2);
/* erase option bytes */
target_write_u32(target, STM32_FLASH_CR, FLASH_OPTER|FLASH_OPTWRE);
target_write_u32(target, STM32_FLASH_CR, FLASH_OPTER|FLASH_STRT|FLASH_OPTWRE);
status = stm32x_wait_status_busy(bank, 10);
if( status & FLASH_WRPRTERR )
return ERROR_FLASH_OPERATION_FAILED;
if( status & FLASH_PGERR )
return ERROR_FLASH_OPERATION_FAILED;
/* program option bytes */
target_write_u32(target, STM32_FLASH_CR, FLASH_OPTPG|FLASH_OPTWRE);
/* clear readout protection and complementary option bytes */
target_write_u16(target, STM32_OB_ADR, 0x5AA5);
status = stm32x_wait_status_busy(bank, 10);
if( status & FLASH_WRPRTERR )
return ERROR_FLASH_OPERATION_FAILED;
if( status & FLASH_PGERR )
return ERROR_FLASH_OPERATION_FAILED;
target_write_u32(target, STM32_FLASH_CR, FLASH_LOCK);
command_print(cmd_ctx, "stm32x unlocked");
return ERROR_OK;
@@ -669,15 +821,6 @@ int stm32x_handle_options_read_command(struct command_context_s *cmd_ctx, char *
return ERROR_TARGET_NOT_HALTED;
}
//target_read_u32(target, STM32_OB_ADR, &optionbyte);
//command_print(cmd_ctx, "Option Byte 0: 0x%x", optionbyte);
//target_read_u32(target, STM32_OB_ADR+4, &optionbyte);
//command_print(cmd_ctx, "Option Byte 1: 0x%x", optionbyte);
//target_read_u32(target, STM32_OB_ADR+8, &optionbyte);
//command_print(cmd_ctx, "Option Byte 2: 0x%x", optionbyte);
//target_read_u32(target, STM32_OB_ADR+12, &optionbyte);
//command_print(cmd_ctx, "Option Byte 3: 0x%x", optionbyte);
target_read_u32(target, STM32_FLASH_OBR, &optionbyte);
command_print(cmd_ctx, "Option Byte: 0x%x", optionbyte);
@@ -713,7 +856,6 @@ int stm32x_handle_options_write_command(struct command_context_s *cmd_ctx, char
target_t *target = NULL;
stm32x_flash_bank_t *stm32x_info = NULL;
u16 optionbyte = 0xF8;
u32 status;
if (argc < 4)
{
@@ -764,38 +906,31 @@ int stm32x_handle_options_write_command(struct command_context_s *cmd_ctx, char
optionbyte &= ~(1<<2);
}
/* unlock flash registers */
target_write_u32(target, STM32_FLASH_KEYR, KEY1);
target_write_u32(target, STM32_FLASH_KEYR, KEY2);
if (stm32x_erase_options(bank) != ERROR_OK)
{
command_print(cmd_ctx, "stm32x failed to erase options");
return ERROR_OK;
}
/* unlock option flash registers */
target_write_u32(target, STM32_FLASH_OPTKEYR, KEY1);
target_write_u32(target, STM32_FLASH_OPTKEYR, KEY2);
stm32x_info->option_bytes.user_options = optionbyte;
/* program option bytes */
target_write_u32(target, STM32_FLASH_CR, FLASH_OPTPG|FLASH_OPTWRE);
if (stm32x_write_options(bank) != ERROR_OK)
{
command_print(cmd_ctx, "stm32x failed to write options");
return ERROR_OK;
}
/* write option byte */
target_write_u16(target, STM32_OB_ADR + 2, optionbyte);
status = stm32x_wait_status_busy(bank, 10);
if( status & FLASH_WRPRTERR )
return ERROR_FLASH_OPERATION_FAILED;
if( status & FLASH_PGERR )
return ERROR_FLASH_OPERATION_FAILED;
target_write_u32(target, STM32_FLASH_CR, FLASH_LOCK);
command_print(cmd_ctx, "stm32x write options complete");
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;
u32 status;
target_t *target = NULL;
stm32x_flash_bank_t *stm32x_info = NULL;
flash_bank_t *bank;
u32 status;
if (argc < 1)
{
@@ -829,12 +964,21 @@ int stm32x_handle_mass_erase_command(struct command_context_s *cmd_ctx, char *cm
status = stm32x_wait_status_busy(bank, 10);
if( status & FLASH_WRPRTERR )
return ERROR_FLASH_OPERATION_FAILED;
if( status & FLASH_PGERR )
return ERROR_FLASH_OPERATION_FAILED;
target_write_u32(target, STM32_FLASH_CR, FLASH_LOCK);
if( status & FLASH_WRPRTERR )
{
command_print(cmd_ctx, "stm32x device protected");
return ERROR_OK;
}
if( status & FLASH_PGERR )
{
command_print(cmd_ctx, "stm32x device programming failed");
return ERROR_OK;
}
command_print(cmd_ctx, "stm32x mass erase complete");
return ERROR_OK;
}