X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Fflash%2Fnor%2Fstm32f1x.c;h=91f7f1ffeb586c76ad0d5390a0a17ee39999758f;hp=4927fb8987fe726b2b523e42294cb69d3d1ed2f8;hb=47cf0aabc8a3a7579bc72c8d3c122ab9c0e6a5c4;hpb=62eec47ff105c60ed0b789d8f63b70a8b060a199
diff --git a/src/flash/nor/stm32f1x.c b/src/flash/nor/stm32f1x.c
index 4927fb8987..91f7f1ffeb 100644
--- a/src/flash/nor/stm32f1x.c
+++ b/src/flash/nor/stm32f1x.c
@@ -5,6 +5,9 @@
* Copyright (C) 2008 by Spencer Oliver *
* spen@spen-soft.co.uk *
* *
+ * Copyright (C) 2011 by Andreas Fritiofson *
+ * andreas.fritiofson@gmail.com *
+ *
* 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 *
@@ -20,6 +23,7 @@
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
@@ -31,14 +35,29 @@
/* stm32x register locations */
-#define STM32_FLASH_ACR 0x40022000
-#define STM32_FLASH_KEYR 0x40022004
-#define STM32_FLASH_OPTKEYR 0x40022008
-#define STM32_FLASH_SR 0x4002200C
-#define STM32_FLASH_CR 0x40022010
-#define STM32_FLASH_AR 0x40022014
-#define STM32_FLASH_OBR 0x4002201C
-#define STM32_FLASH_WRPR 0x40022020
+#define FLASH_REG_BASE_B0 0x40022000
+#define FLASH_REG_BASE_B1 0x40022040
+
+#define STM32_FLASH_ACR 0x00
+#define STM32_FLASH_KEYR 0x04
+#define STM32_FLASH_OPTKEYR 0x08
+#define STM32_FLASH_SR 0x0C
+#define STM32_FLASH_CR 0x10
+#define STM32_FLASH_AR 0x14
+#define STM32_FLASH_OBR 0x1C
+#define STM32_FLASH_WRPR 0x20
+
+/* TODO: Check if code using these really should be hard coded to bank 0.
+ * There are valid cases, on dual flash devices the protection of the
+ * second bank is done on the bank0 reg's. */
+#define STM32_FLASH_ACR_B0 0x40022000
+#define STM32_FLASH_KEYR_B0 0x40022004
+#define STM32_FLASH_OPTKEYR_B0 0x40022008
+#define STM32_FLASH_SR_B0 0x4002200C
+#define STM32_FLASH_CR_B0 0x40022010
+#define STM32_FLASH_AR_B0 0x40022014
+#define STM32_FLASH_OBR_B0 0x4002201C
+#define STM32_FLASH_WRPR_B0 0x40022020
/* option byte location */
@@ -83,34 +102,25 @@
#define KEY1 0x45670123
#define KEY2 0xCDEF89AB
-/* we use an offset to access the second bank on dual flash devices
- * strangely the protection of the second bank is done on the bank0 reg's */
-
-#define FLASH_OFFSET_B0 0x00
-#define FLASH_OFFSET_B1 0x40
-
-struct stm32x_options
-{
+struct stm32x_options {
uint16_t RDP;
uint16_t user_options;
uint16_t protection[4];
};
-struct stm32x_flash_bank
-{
+struct stm32x_flash_bank {
struct stm32x_options option_bytes;
struct working_area *write_algorithm;
int ppage_size;
int probed;
bool has_dual_banks;
- /* used to access dual flash bank stm32xl
- * 0x00 will address bank 0 flash
- * 0x40 will address bank 1 flash */
- int register_offset;
+ /* used to access dual flash bank stm32xl */
+ uint32_t register_base;
};
static int stm32x_mass_erase(struct flash_bank *bank);
+static int stm32x_get_device_id(struct flash_bank *bank, uint32_t *device_id);
/* flash bank stm32x 0 0
*/
@@ -119,18 +129,15 @@ FLASH_BANK_COMMAND_HANDLER(stm32x_flash_bank_command)
struct stm32x_flash_bank *stm32x_info;
if (CMD_ARGC < 6)
- {
- LOG_WARNING("incomplete flash_bank stm32x configuration");
- return ERROR_FLASH_BANK_INVALID;
- }
+ return ERROR_COMMAND_SYNTAX_ERROR;
stm32x_info = malloc(sizeof(struct stm32x_flash_bank));
- bank->driver_priv = stm32x_info;
+ bank->driver_priv = stm32x_info;
stm32x_info->write_algorithm = NULL;
stm32x_info->probed = 0;
stm32x_info->has_dual_banks = false;
- stm32x_info->register_offset = FLASH_OFFSET_B0;
+ stm32x_info->register_base = FLASH_REG_BASE_B0;
return ERROR_OK;
}
@@ -138,7 +145,7 @@ FLASH_BANK_COMMAND_HANDLER(stm32x_flash_bank_command)
static inline int stm32x_get_flash_reg(struct flash_bank *bank, uint32_t reg)
{
struct stm32x_flash_bank *stm32x_info = bank->driver_priv;
- return reg + stm32x_info->register_offset;
+ return reg + stm32x_info->register_base;
}
static inline int stm32x_get_flash_status(struct flash_bank *bank, uint32_t *status)
@@ -154,37 +161,32 @@ static int stm32x_wait_status_busy(struct flash_bank *bank, int timeout)
int retval = ERROR_OK;
/* wait for busy to clear */
- for (;;)
- {
+ for (;;) {
retval = stm32x_get_flash_status(bank, &status);
if (retval != ERROR_OK)
return retval;
LOG_DEBUG("status: 0x%" PRIx32 "", status);
if ((status & FLASH_BSY) == 0)
break;
- if (timeout-- <= 0)
- {
+ if (timeout-- <= 0) {
LOG_ERROR("timed out waiting for flash");
return ERROR_FAIL;
}
alive_sleep(1);
}
- if (status & FLASH_WRPRTERR)
- {
+ if (status & FLASH_WRPRTERR) {
LOG_ERROR("stm32x device protected");
retval = ERROR_FAIL;
}
- if (status & FLASH_PGERR)
- {
+ if (status & FLASH_PGERR) {
LOG_ERROR("stm32x device programming failed");
retval = ERROR_FAIL;
}
/* Clear but report errors */
- if (status & (FLASH_WRPRTERR | FLASH_PGERR))
- {
+ if (status & (FLASH_WRPRTERR | FLASH_PGERR)) {
/* If this operation fails, we ignore it and report the original
* retval
*/
@@ -200,8 +202,7 @@ int stm32x_check_operation_supported(struct flash_bank *bank)
/* if we have a dual flash bank device then
* we need to perform option byte stuff on bank0 only */
- if (stm32x_info->register_offset != FLASH_OFFSET_B0)
- {
+ if (stm32x_info->register_base != FLASH_REG_BASE_B0) {
LOG_ERROR("Option Byte Operation's must use bank0");
return ERROR_FLASH_OPERATION_FAILED;
}
@@ -218,7 +219,7 @@ static int stm32x_read_options(struct flash_bank *bank)
stm32x_info = bank->driver_priv;
/* read current option bytes */
- int retval = target_read_u32(target, STM32_FLASH_OBR, &optiondata);
+ int retval = target_read_u32(target, STM32_FLASH_OBR_B0, &optiondata);
if (retval != ERROR_OK)
return retval;
@@ -229,7 +230,7 @@ static int stm32x_read_options(struct flash_bank *bank)
LOG_INFO("Device Security Bit Set");
/* each bit refers to a 4bank protection */
- retval = target_read_u32(target, STM32_FLASH_WRPR, &optiondata);
+ retval = target_read_u32(target, STM32_FLASH_WRPR_B0, &optiondata);
if (retval != ERROR_OK)
return retval;
@@ -252,27 +253,27 @@ static int stm32x_erase_options(struct flash_bank *bank)
stm32x_read_options(bank);
/* unlock flash registers */
- int retval = target_write_u32(target, STM32_FLASH_KEYR, KEY1);
+ int retval = target_write_u32(target, STM32_FLASH_KEYR_B0, KEY1);
if (retval != ERROR_OK)
return retval;
- retval = target_write_u32(target, STM32_FLASH_KEYR, KEY2);
+ retval = target_write_u32(target, STM32_FLASH_KEYR_B0, KEY2);
if (retval != ERROR_OK)
return retval;
/* unlock option flash registers */
- retval = target_write_u32(target, STM32_FLASH_OPTKEYR, KEY1);
+ retval = target_write_u32(target, STM32_FLASH_OPTKEYR_B0, KEY1);
if (retval != ERROR_OK)
return retval;
- retval = target_write_u32(target, STM32_FLASH_OPTKEYR, KEY2);
+ retval = target_write_u32(target, STM32_FLASH_OPTKEYR_B0, KEY2);
if (retval != ERROR_OK)
return retval;
/* erase option bytes */
- retval = target_write_u32(target, STM32_FLASH_CR, FLASH_OPTER | FLASH_OPTWRE);
+ retval = target_write_u32(target, STM32_FLASH_CR_B0, FLASH_OPTER | FLASH_OPTWRE);
if (retval != ERROR_OK)
return retval;
- retval = target_write_u32(target, STM32_FLASH_CR, FLASH_OPTER | FLASH_STRT | FLASH_OPTWRE);
+ retval = target_write_u32(target, STM32_FLASH_CR_B0, FLASH_OPTER | FLASH_STRT | FLASH_OPTWRE);
if (retval != ERROR_OK)
return retval;
@@ -295,23 +296,23 @@ static int stm32x_write_options(struct flash_bank *bank)
stm32x_info = bank->driver_priv;
/* unlock flash registers */
- int retval = target_write_u32(target, STM32_FLASH_KEYR, KEY1);
+ int retval = target_write_u32(target, STM32_FLASH_KEYR_B0, KEY1);
if (retval != ERROR_OK)
return retval;
- retval = target_write_u32(target, STM32_FLASH_KEYR, KEY2);
+ retval = target_write_u32(target, STM32_FLASH_KEYR_B0, KEY2);
if (retval != ERROR_OK)
return retval;
/* unlock option flash registers */
- retval = target_write_u32(target, STM32_FLASH_OPTKEYR, KEY1);
+ retval = target_write_u32(target, STM32_FLASH_OPTKEYR_B0, KEY1);
if (retval != ERROR_OK)
return retval;
- retval = target_write_u32(target, STM32_FLASH_OPTKEYR, KEY2);
+ retval = target_write_u32(target, STM32_FLASH_OPTKEYR_B0, KEY2);
if (retval != ERROR_OK)
return retval;
/* program option bytes */
- retval = target_write_u32(target, STM32_FLASH_CR, FLASH_OPTPG | FLASH_OPTWRE);
+ retval = target_write_u32(target, STM32_FLASH_CR_B0, FLASH_OPTPG | FLASH_OPTWRE);
if (retval != ERROR_OK)
return retval;
@@ -369,7 +370,7 @@ static int stm32x_write_options(struct flash_bank *bank)
if (retval != ERROR_OK)
return retval;
- retval = target_write_u32(target, STM32_FLASH_CR, FLASH_LOCK);
+ retval = target_write_u32(target, STM32_FLASH_CR_B0, FLASH_LOCK);
if (retval != ERROR_OK)
return retval;
@@ -386,8 +387,7 @@ static int stm32x_protect_check(struct flash_bank *bank)
int num_bits;
int set;
- if (target->state != TARGET_HALTED)
- {
+ if (target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
@@ -398,7 +398,7 @@ static int stm32x_protect_check(struct flash_bank *bank)
/* medium density - each bit refers to a 4bank protection
* high density - each bit refers to a 2bank protection */
- retval = target_read_u32(target, STM32_FLASH_WRPR, &protection);
+ retval = target_read_u32(target, STM32_FLASH_WRPR_B0, &protection);
if (retval != ERROR_OK)
return retval;
@@ -406,8 +406,7 @@ static int stm32x_protect_check(struct flash_bank *bank)
* high density - each protection bit is for 2 * 2K pages */
num_bits = (bank->num_sectors / stm32x_info->ppage_size);
- if (stm32x_info->ppage_size == 2)
- {
+ if (stm32x_info->ppage_size == 2) {
/* high density flash/connectivity line protection */
set = 1;
@@ -418,15 +417,12 @@ static int stm32x_protect_check(struct flash_bank *bank)
/* bit 31 controls sector 62 - 255 protection for high density
* bit 31 controls sector 62 - 127 protection for connectivity line */
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++)
- {
+ for (i = 0; i < num_bits; i++) {
set = 1;
if (protection & (1 << i))
@@ -435,12 +431,9 @@ static int stm32x_protect_check(struct flash_bank *bank)
for (s = 0; s < stm32x_info->ppage_size; s++)
bank->sectors[(i * stm32x_info->ppage_size) + s].is_protected = set;
}
- }
- else
- {
+ } else {
/* low/medium density flash protection */
- for (i = 0; i < num_bits; i++)
- {
+ for (i = 0; i < num_bits; i++) {
set = 1;
if (protection & (1 << i))
@@ -459,16 +452,13 @@ static int stm32x_erase(struct flash_bank *bank, int first, int last)
struct target *target = bank->target;
int i;
- if (bank->target->state != TARGET_HALTED)
- {
+ 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 */
int retval = target_write_u32(target, stm32x_get_flash_reg(bank, STM32_FLASH_KEYR), KEY1);
@@ -478,8 +468,7 @@ static int stm32x_erase(struct flash_bank *bank, int first, int last)
if (retval != ERROR_OK)
return retval;
- for (i = first; i <= last; i++)
- {
+ for (i = first; i <= last; i++) {
retval = target_write_u32(target, stm32x_get_flash_reg(bank, STM32_FLASH_CR), FLASH_PER);
if (retval != ERROR_OK)
return retval;
@@ -517,8 +506,7 @@ static int stm32x_protect(struct flash_bank *bank, int set, int first, int last)
stm32x_info = bank->driver_priv;
- if (target->state != TARGET_HALTED)
- {
+ if (target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
@@ -527,14 +515,12 @@ static int stm32x_protect(struct flash_bank *bank, int set, int first, int last)
if (ERROR_OK != retval)
return retval;
- if ((first % stm32x_info->ppage_size) != 0)
- {
+ if ((first % stm32x_info->ppage_size) != 0) {
LOG_WARNING("aligned start protect sector to a %d sector boundary",
stm32x_info->ppage_size);
first = first - (first % stm32x_info->ppage_size);
}
- if (((last + 1) % stm32x_info->ppage_size) != 0)
- {
+ if (((last + 1) % stm32x_info->ppage_size) != 0) {
LOG_WARNING("aligned end protect sector to a %d sector boundary",
stm32x_info->ppage_size);
last++;
@@ -544,7 +530,7 @@ static int stm32x_protect(struct flash_bank *bank, int set, int first, int last)
/* medium density - each bit refers to a 4bank protection
* high density - each bit refers to a 2bank protection */
- retval = target_read_u32(target, STM32_FLASH_WRPR, &protection);
+ retval = target_read_u32(target, STM32_FLASH_WRPR_B0, &protection);
if (retval != ERROR_OK)
return retval;
@@ -553,13 +539,11 @@ static int stm32x_protect(struct flash_bank *bank, int set, int first, int last)
prot_reg[2] = (uint16_t)(protection >> 16);
prot_reg[3] = (uint16_t)(protection >> 24);
- if (stm32x_info->ppage_size == 2)
- {
+ if (stm32x_info->ppage_size == 2) {
/* high density flash */
/* bit 7 controls sector 62 - 255 protection */
- if (last > 61)
- {
+ if (last > 61) {
if (set)
prot_reg[3] &= ~(1 << 7);
else
@@ -571,8 +555,7 @@ static int stm32x_protect(struct flash_bank *bank, int set, int first, int last)
if (last > 61)
last = 61;
- for (i = first; i <= last; i++)
- {
+ for (i = first; i <= last; i++) {
reg = (i / stm32x_info->ppage_size) / 8;
bit = (i / stm32x_info->ppage_size) - (reg * 8);
@@ -581,12 +564,9 @@ static int stm32x_protect(struct flash_bank *bank, int set, int first, int last)
else
prot_reg[reg] |= (1 << bit);
}
- }
- else
- {
+ } else {
/* medium density flash */
- for (i = first; i <= last; i++)
- {
+ for (i = first; i <= last; i++) {
reg = (i / stm32x_info->ppage_size) / 8;
bit = (i / stm32x_info->ppage_size) - (reg * 8);
@@ -597,7 +577,8 @@ static int stm32x_protect(struct flash_bank *bank, int set, int first, int last)
}
}
- if ((status = stm32x_erase_options(bank)) != ERROR_OK)
+ status = stm32x_erase_options(bank);
+ if (status != ERROR_OK)
return status;
stm32x_info->option_bytes.protection[0] = prot_reg[0];
@@ -616,55 +597,71 @@ static int stm32x_write_block(struct flash_bank *bank, uint8_t *buffer,
uint32_t buffer_size = 16384;
struct working_area *source;
uint32_t address = bank->base + offset;
- struct reg_param reg_params[4];
+ struct reg_param reg_params[5];
struct armv7m_algorithm armv7m_info;
int retval = ERROR_OK;
- /* see contib/loaders/flash/stm32x.s for src */
+ /* see contrib/loaders/flash/stm32f1x.S for src */
static const uint8_t stm32x_flash_write_code[] = {
- /* #define STM32_FLASH_CR_OFFSET 0x10 */
- /* #define STM32_FLASH_SR_OFFSET 0x0C */
- /* write: */
- 0x08, 0x4c, /* ldr r4, STM32_FLASH_BASE */
- 0x1c, 0x44, /* add r4, r3 */
- /* write_half_word: */
- 0x01, 0x23, /* movs r3, #0x01 */
- 0x23, 0x61, /* str r3, [r4, #STM32_FLASH_CR_OFFSET] */
- 0x30, 0xf8, 0x02, 0x3b, /* ldrh r3, [r0], #0x02 */
- 0x21, 0xf8, 0x02, 0x3b, /* strh r3, [r1], #0x02 */
- /* busy: */
- 0xe3, 0x68, /* ldr r3, [r4, #STM32_FLASH_SR_OFFSET] */
- 0x13, 0xf0, 0x01, 0x0f, /* tst r3, #0x01 */
- 0xfb, 0xd0, /* beq busy */
- 0x13, 0xf0, 0x14, 0x0f, /* tst r3, #0x14 */
- 0x01, 0xd1, /* bne exit */
- 0x01, 0x3a, /* subs r2, r2, #0x01 */
- 0xf0, 0xd1, /* bne write_half_word */
- /* exit: */
- 0x00, 0xbe, /* bkpt #0x00 */
- 0x00, 0x20, 0x02, 0x40, /* STM32_FLASH_BASE: .word 0x40022000 */
+ /* #define STM32_FLASH_CR_OFFSET 0x10 */
+ /* #define STM32_FLASH_SR_OFFSET 0x0C */
+ /* wait_fifo: */
+ 0x16, 0x68, /* ldr r6, [r2, #0] */
+ 0x00, 0x2e, /* cmp r6, #0 */
+ 0x1a, 0xd0, /* beq exit */
+ 0x55, 0x68, /* ldr r5, [r2, #4] */
+ 0xb5, 0x42, /* cmp r5, r6 */
+ 0xf9, 0xd0, /* beq wait_fifo */
+ 0x01, 0x26, /* movs r6, #1 */
+ 0x06, 0x61, /* str r6, [r0, #STM32_FLASH_CR_OFFSET] */
+ 0x2e, 0x88, /* ldrh r6, [r5, #0] */
+ 0x26, 0x80, /* strh r6, [r4, #0] */
+ 0x02, 0x35, /* adds r5, #2 */
+ 0x02, 0x34, /* adds r4, #2 */
+ /* busy: */
+ 0xc6, 0x68, /* ldr r6, [r0, #STM32_FLASH_SR_OFFSET] */
+ 0x01, 0x27, /* movs r7, #1 */
+ 0x3e, 0x42, /* tst r6, r7 */
+ 0xfb, 0xd1, /* bne busy */
+ 0x14, 0x27, /* movs r7, #0x14 */
+ 0x3e, 0x42, /* tst r6, r7 */
+ 0x08, 0xd1, /* bne error */
+ 0x9d, 0x42, /* cmp r5, r3 */
+ 0x01, 0xd3, /* bcc no_wrap */
+ 0x15, 0x46, /* mov r5, r2 */
+ 0x08, 0x35, /* adds r5, #8 */
+ /* no_wrap: */
+ 0x55, 0x60, /* str r5, [r2, #4] */
+ 0x01, 0x39, /* subs r1, r1, #1 */
+ 0x00, 0x29, /* cmp r1, #0 */
+ 0x02, 0xd0, /* beq exit */
+ 0xe3, 0xe7, /* b wait_fifo */
+ /* error: */
+ 0x00, 0x20, /* movs r0, #0 */
+ 0x50, 0x60, /* str r0, [r2, #4] */
+ /* exit: */
+ 0x30, 0x46, /* mov r0, r6 */
+ 0x00, 0xbe, /* bkpt #0 */
};
/* flash write code */
if (target_alloc_working_area(target, sizeof(stm32x_flash_write_code),
- &stm32x_info->write_algorithm) != ERROR_OK)
- {
+ &stm32x_info->write_algorithm) != ERROR_OK) {
LOG_WARNING("no working area available, can't do block memory writes");
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
};
- if ((retval = target_write_buffer(target, stm32x_info->write_algorithm->address,
- sizeof(stm32x_flash_write_code),
- (uint8_t*)stm32x_flash_write_code)) != ERROR_OK)
+ retval = target_write_buffer(target, stm32x_info->write_algorithm->address,
+ sizeof(stm32x_flash_write_code), (uint8_t *)stm32x_flash_write_code);
+ if (retval != ERROR_OK)
return retval;
/* memory buffer */
- while (target_alloc_working_area_try(target, buffer_size, &source) != ERROR_OK)
- {
+ while (target_alloc_working_area_try(target, buffer_size, &source) != ERROR_OK) {
buffer_size /= 2;
- if (buffer_size <= 256)
- {
+ buffer_size &= ~3UL; /* Make sure it's 4 byte aligned */
+ if (buffer_size <= 256) {
/* if we already allocated the writing code, but failed to get a
* buffer, free the algorithm */
if (stm32x_info->write_algorithm)
@@ -675,58 +672,43 @@ static int stm32x_write_block(struct flash_bank *bank, uint8_t *buffer,
}
};
- armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
- armv7m_info.core_mode = ARMV7M_MODE_ANY;
+ init_reg_param(®_params[0], "r0", 32, PARAM_IN_OUT); /* flash base (in), status (out) */
+ init_reg_param(®_params[1], "r1", 32, PARAM_OUT); /* count (halfword-16bit) */
+ init_reg_param(®_params[2], "r2", 32, PARAM_OUT); /* buffer start */
+ init_reg_param(®_params[3], "r3", 32, PARAM_OUT); /* buffer end */
+ init_reg_param(®_params[4], "r4", 32, PARAM_IN_OUT); /* target address */
- 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_IN_OUT);
+ buf_set_u32(reg_params[0].value, 0, 32, stm32x_info->register_base);
+ buf_set_u32(reg_params[1].value, 0, 32, count);
+ buf_set_u32(reg_params[2].value, 0, 32, source->address);
+ buf_set_u32(reg_params[3].value, 0, 32, source->address + source->size);
+ buf_set_u32(reg_params[4].value, 0, 32, address);
- while (count > 0)
- {
- uint32_t thisrun_count = (count > (buffer_size / 2)) ?
- (buffer_size / 2) : count;
+ armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
+ armv7m_info.core_mode = ARMV7M_MODE_ANY;
- if ((retval = target_write_buffer(target, source->address,
- thisrun_count * 2, buffer)) != ERROR_OK)
- break;
+ retval = target_run_flash_async_algorithm(target, buffer, count, 2,
+ 0, NULL,
+ 5, reg_params,
+ source->address, source->size,
+ stm32x_info->write_algorithm->address, 0,
+ &armv7m_info);
- 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, thisrun_count);
- buf_set_u32(reg_params[3].value, 0, 32, stm32x_info->register_offset);
-
- if ((retval = target_run_algorithm(target, 0, NULL, 4, reg_params,
- stm32x_info->write_algorithm->address,
- 0,
- 10000, &armv7m_info)) != ERROR_OK)
- {
- LOG_ERROR("error executing stm32x flash write algorithm");
- break;
- }
+ if (retval == ERROR_FLASH_OPERATION_FAILED) {
+ LOG_ERROR("flash write failed at address 0x%"PRIx32,
+ buf_get_u32(reg_params[4].value, 0, 32));
- if (buf_get_u32(reg_params[3].value, 0, 32) & FLASH_PGERR)
- {
+ if (buf_get_u32(reg_params[0].value, 0, 32) & FLASH_PGERR) {
LOG_ERROR("flash memory not erased before writing");
/* Clear but report errors */
- target_write_u32(target, STM32_FLASH_SR, FLASH_PGERR);
- retval = ERROR_FAIL;
- break;
+ target_write_u32(target, stm32x_get_flash_reg(bank, STM32_FLASH_SR), FLASH_PGERR);
}
- if (buf_get_u32(reg_params[3].value, 0, 32) & FLASH_WRPRTERR)
- {
+ if (buf_get_u32(reg_params[0].value, 0, 32) & FLASH_WRPRTERR) {
LOG_ERROR("flash memory write protected");
/* Clear but report errors */
- target_write_u32(target, STM32_FLASH_SR, FLASH_WRPRTERR);
- retval = ERROR_FAIL;
- break;
+ target_write_u32(target, stm32x_get_flash_reg(bank, STM32_FLASH_SR), FLASH_WRPRTERR);
}
-
- buffer += thisrun_count * 2;
- address += thisrun_count * 2;
- count -= thisrun_count;
}
target_free_working_area(target, source);
@@ -736,6 +718,7 @@ static int stm32x_write_block(struct flash_bank *bank, uint8_t *buffer,
destroy_reg_param(®_params[1]);
destroy_reg_param(®_params[2]);
destroy_reg_param(®_params[3]);
+ destroy_reg_param(®_params[4]);
return retval;
}
@@ -750,14 +733,12 @@ static int stm32x_write(struct flash_bank *bank, uint8_t *buffer,
uint32_t bytes_written = 0;
int retval;
- if (bank->target->state != TARGET_HALTED)
- {
+ if (bank->target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
- if (offset & 0x1)
- {
+ if (offset & 0x1) {
LOG_WARNING("offset 0x%" PRIx32 " breaks required 2-byte alignment", offset);
return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
}
@@ -771,20 +752,16 @@ static int stm32x_write(struct flash_bank *bank, uint8_t *buffer,
return retval;
/* multiple half words (2-byte) to be programmed? */
- if (words_remaining > 0)
- {
+ if (words_remaining > 0) {
/* try using a block write */
- if ((retval = stm32x_write_block(bank, buffer, offset, words_remaining)) != ERROR_OK)
- {
- if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
- {
+ retval = stm32x_write_block(bank, buffer, offset, words_remaining);
+ if (retval != ERROR_OK) {
+ if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE) {
/* if block write failed (no sufficient working area),
* we use normal (slow) single dword accesses */
LOG_WARNING("couldn't use block writes, falling back to single memory accesses");
}
- }
- else
- {
+ } else {
buffer += words_remaining * 2;
address += words_remaining * 2;
words_remaining = 0;
@@ -794,8 +771,7 @@ static int stm32x_write(struct flash_bank *bank, uint8_t *buffer,
if ((retval != ERROR_OK) && (retval != ERROR_TARGET_RESOURCE_NOT_AVAILABLE))
return retval;
- while (words_remaining > 0)
- {
+ while (words_remaining > 0) {
uint16_t value;
memcpy(&value, buffer + bytes_written, sizeof(uint16_t));
@@ -815,8 +791,7 @@ static int stm32x_write(struct flash_bank *bank, uint8_t *buffer,
address += 2;
}
- if (bytes_remaining)
- {
+ if (bytes_remaining) {
uint16_t value = 0xffff;
memcpy(&value, buffer + bytes_written, bytes_remaining);
@@ -832,130 +807,169 @@ static int stm32x_write(struct flash_bank *bank, uint8_t *buffer,
return retval;
}
- return target_write_u32(target, STM32_FLASH_CR, FLASH_LOCK);
+ return target_write_u32(target, stm32x_get_flash_reg(bank, STM32_FLASH_CR), FLASH_LOCK);
}
-static int stm32x_probe(struct flash_bank *bank)
+static int stm32x_get_device_id(struct flash_bank *bank, uint32_t *device_id)
{
+ /* This check the device CPUID core register to detect
+ * the M0 from the M3 devices. */
+
struct target *target = bank->target;
+ uint32_t cpuid, device_id_register = 0;
+
+ /* Get the CPUID from the ARM Core
+ * http://infocenter.arm.com/help/topic/com.arm.doc.ddi0432c/DDI0432C_cortex_m0_r0p0_trm.pdf 4.2.1 */
+ int retval = target_read_u32(target, 0xE000ED00, &cpuid);
+ if (retval != ERROR_OK)
+ return retval;
+
+ if (((cpuid >> 4) & 0xFFF) == 0xC20) {
+ /* 0xC20 is M0 devices */
+ device_id_register = 0x40015800;
+ } else if (((cpuid >> 4) & 0xFFF) == 0xC23) {
+ /* 0xC23 is M3 devices */
+ device_id_register = 0xE0042000;
+ } else {
+ LOG_ERROR("Cannot identify target as a stm32x");
+ return ERROR_FAIL;
+ }
+
+ /* read stm32 device id register */
+ retval = target_read_u32(target, device_id_register, device_id);
+ if (retval != ERROR_OK)
+ return retval;
+
+ return retval;
+}
+
+static int stm32x_get_flash_size(struct flash_bank *bank, uint16_t *flash_size_in_kb)
+{
+ struct target *target = bank->target;
+ uint32_t cpuid, flash_size_reg;
+
+ int retval = target_read_u32(target, 0xE000ED00, &cpuid);
+ if (retval != ERROR_OK)
+ return retval;
+
+ if (((cpuid >> 4) & 0xFFF) == 0xC20) {
+ /* 0xC20 is M0 devices */
+ flash_size_reg = 0x1FFFF7CC;
+ } else if (((cpuid >> 4) & 0xFFF) == 0xC23) {
+ /* 0xC23 is M3 devices */
+ flash_size_reg = 0x1FFFF7E0;
+ } else {
+ LOG_ERROR("Cannot identify target as a stm32x");
+ return ERROR_FAIL;
+ }
+
+ retval = target_read_u16(target, flash_size_reg, flash_size_in_kb);
+ if (retval != ERROR_OK)
+ return retval;
+
+ return retval;
+}
+
+static int stm32x_probe(struct flash_bank *bank)
+{
struct stm32x_flash_bank *stm32x_info = bank->driver_priv;
int i;
- uint16_t num_pages;
+ uint16_t flash_size_in_kb;
uint32_t device_id;
int page_size;
uint32_t base_address = 0x08000000;
stm32x_info->probed = 0;
- stm32x_info->register_offset = FLASH_OFFSET_B0;
+ stm32x_info->register_base = FLASH_REG_BASE_B0;
/* read stm32 device id register */
- int retval = target_read_u32(target, 0xE0042000, &device_id);
+ int retval = stm32x_get_device_id(bank, &device_id);
if (retval != ERROR_OK)
return retval;
+
LOG_INFO("device id = 0x%08" PRIx32 "", device_id);
/* get flash size from target. */
- retval = target_read_u16(target, 0x1FFFF7E0, &num_pages);
- if (retval != ERROR_OK)
- {
+ retval = stm32x_get_flash_size(bank, &flash_size_in_kb);
+ if (retval != ERROR_OK) {
LOG_WARNING("failed reading flash size, default to max target family");
/* failed reading flash size, default to max target family */
- num_pages = 0xffff;
+ flash_size_in_kb = 0xffff;
}
- if ((device_id & 0x7ff) == 0x410)
- {
+ if ((device_id & 0xfff) == 0x410) {
/* 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)
- {
+ if (flash_size_in_kb == 0xffff) {
/* number of sectors incorrect on revA */
LOG_WARNING("STM32 flash size failed, probe inaccurate - assuming 128k flash");
- num_pages = 128;
+ flash_size_in_kb = 128;
}
- }
- else if ((device_id & 0x7ff) == 0x412)
- {
+ } else if ((device_id & 0xfff) == 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)
- {
+ if (flash_size_in_kb == 0xffff) {
/* number of sectors incorrect on revA */
LOG_WARNING("STM32 flash size failed, probe inaccurate - assuming 32k flash");
- num_pages = 32;
+ flash_size_in_kb = 32;
}
- }
- else if ((device_id & 0x7ff) == 0x414)
- {
+ } else if ((device_id & 0xfff) == 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)
- {
+ if (flash_size_in_kb == 0xffff) {
/* number of sectors incorrect on revZ */
LOG_WARNING("STM32 flash size failed, probe inaccurate - assuming 512k flash");
- num_pages = 512;
+ flash_size_in_kb = 512;
}
- }
- else if ((device_id & 0x7ff) == 0x418)
- {
+ } else if ((device_id & 0xfff) == 0x418) {
/* connectivity line 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)
- {
+ if (flash_size_in_kb == 0xffff) {
/* number of sectors incorrect on revZ */
LOG_WARNING("STM32 flash size failed, probe inaccurate - assuming 256k flash");
- num_pages = 256;
+ flash_size_in_kb = 256;
}
- }
- else if ((device_id & 0x7ff) == 0x420)
- {
+ } else if ((device_id & 0xfff) == 0x420) {
/* value 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)
- {
+ if (flash_size_in_kb == 0xffff) {
/* number of sectors may be incorrrect on early silicon */
LOG_WARNING("STM32 flash size failed, probe inaccurate - assuming 128k flash");
- num_pages = 128;
+ flash_size_in_kb = 128;
}
- }
- else if ((device_id & 0x7ff) == 0x428)
- {
- /* value line density - we have 1k pages
+ } else if ((device_id & 0xfff) == 0x428) {
+ /* value line High density - we have 2k pages
* 4 pages for a protection area */
page_size = 2048;
stm32x_info->ppage_size = 4;
/* check for early silicon */
- if (num_pages == 0xffff)
- {
+ if (flash_size_in_kb == 0xffff) {
/* number of sectors may be incorrrect on early silicon */
LOG_WARNING("STM32 flash size failed, probe inaccurate - assuming 128k flash");
- num_pages = 128;
+ flash_size_in_kb = 128;
}
- }
-
- else if ((device_id & 0x7ff) == 0x430)
- {
+ } else if ((device_id & 0xfff) == 0x430) {
/* xl line density - we have 2k pages
* 2 pages for a protection area */
page_size = 2048;
@@ -963,40 +977,51 @@ static int stm32x_probe(struct flash_bank *bank)
stm32x_info->has_dual_banks = true;
/* check for early silicon */
- if (num_pages == 0xffff)
- {
+ if (flash_size_in_kb == 0xffff) {
/* number of sectors may be incorrrect on early silicon */
LOG_WARNING("STM32 flash size failed, probe inaccurate - assuming 1024k flash");
- num_pages = 1024;
+ flash_size_in_kb = 1024;
}
/* split reported size into matching bank */
- if (bank->base != 0x08080000)
- {
+ if (bank->base != 0x08080000) {
/* bank 0 will be fixed 512k */
- num_pages = 512;
- }
- else
- {
- num_pages -= 512;
+ flash_size_in_kb = 512;
+ } else {
+ flash_size_in_kb -= 512;
/* bank1 also uses a register offset */
- stm32x_info->register_offset = FLASH_OFFSET_B1;
+ stm32x_info->register_base = FLASH_REG_BASE_B1;
base_address = 0x08080000;
}
- }
- else
- {
+ } else if ((device_id & 0xfff) == 0x440) {
+ /* stm32f0x - we have 1k pages
+ * 4 pages for a protection area */
+ page_size = 1024;
+ stm32x_info->ppage_size = 4;
+
+ /* check for early silicon */
+ if (flash_size_in_kb == 0xffff) {
+ /* number of sectors incorrect on revZ */
+ LOG_WARNING("STM32 flash size failed, probe inaccurate - assuming 64k flash");
+ flash_size_in_kb = 64;
+ }
+ } else {
LOG_WARNING("Cannot identify target as a STM32 family.");
return ERROR_FAIL;
}
- LOG_INFO("flash size = %dkbytes", num_pages);
+ LOG_INFO("flash size = %dkbytes", flash_size_in_kb);
+
+ /* did we assign flash size? */
+ assert(flash_size_in_kb != 0xffff);
/* calculate numbers of pages */
- num_pages /= (page_size / 1024);
+ int num_pages = flash_size_in_kb * 1024 / page_size;
- if (bank->sectors)
- {
+ /* check that calculation result makes sense */
+ assert(num_pages > 0);
+
+ if (bank->sectors) {
free(bank->sectors);
bank->sectors = NULL;
}
@@ -1006,8 +1031,7 @@ static int stm32x_probe(struct flash_bank *bank)
bank->num_sectors = num_pages;
bank->sectors = malloc(sizeof(struct flash_sector) * num_pages);
- for (i = 0; i < num_pages; i++)
- {
+ for (i = 0; i < num_pages; i++) {
bank->sectors[i].offset = i * page_size;
bank->sectors[i].size = page_size;
bank->sectors[i].is_erased = -1;
@@ -1036,23 +1060,20 @@ COMMAND_HANDLER(stm32x_handle_part_id_command)
static int get_stm32x_info(struct flash_bank *bank, char *buf, int buf_size)
{
- struct target *target = bank->target;
uint32_t device_id;
int printed;
- /* read stm32 device id register */
- int retval = target_read_u32(target, 0xE0042000, &device_id);
+ /* read stm32 device id register */
+ int retval = stm32x_get_device_id(bank, &device_id);
if (retval != ERROR_OK)
return retval;
- if ((device_id & 0x7ff) == 0x410)
- {
+ if ((device_id & 0xfff) == 0x410) {
printed = snprintf(buf, buf_size, "stm32x (Medium Density) - Rev: ");
buf += printed;
buf_size -= printed;
- switch (device_id >> 16)
- {
+ switch (device_id >> 16) {
case 0x0000:
snprintf(buf, buf_size, "A");
break;
@@ -1073,15 +1094,12 @@ static int get_stm32x_info(struct flash_bank *bank, char *buf, int buf_size)
snprintf(buf, buf_size, "unknown");
break;
}
- }
- else if ((device_id & 0x7ff) == 0x412)
- {
+ } else if ((device_id & 0xfff) == 0x412) {
printed = snprintf(buf, buf_size, "stm32x (Low Density) - Rev: ");
buf += printed;
buf_size -= printed;
- switch (device_id >> 16)
- {
+ switch (device_id >> 16) {
case 0x1000:
snprintf(buf, buf_size, "A");
break;
@@ -1090,15 +1108,12 @@ static int get_stm32x_info(struct flash_bank *bank, char *buf, int buf_size)
snprintf(buf, buf_size, "unknown");
break;
}
- }
- else if ((device_id & 0x7ff) == 0x414)
- {
+ } else if ((device_id & 0xfff) == 0x414) {
printed = snprintf(buf, buf_size, "stm32x (High Density) - Rev: ");
buf += printed;
buf_size -= printed;
- switch (device_id >> 16)
- {
+ switch (device_id >> 16) {
case 0x1000:
snprintf(buf, buf_size, "A");
break;
@@ -1111,15 +1126,12 @@ static int get_stm32x_info(struct flash_bank *bank, char *buf, int buf_size)
snprintf(buf, buf_size, "unknown");
break;
}
- }
- else if ((device_id & 0x7ff) == 0x418)
- {
+ } else if ((device_id & 0xfff) == 0x418) {
printed = snprintf(buf, buf_size, "stm32x (Connectivity) - Rev: ");
buf += printed;
buf_size -= printed;
- switch (device_id >> 16)
- {
+ switch (device_id >> 16) {
case 0x1000:
snprintf(buf, buf_size, "A");
break;
@@ -1132,15 +1144,12 @@ static int get_stm32x_info(struct flash_bank *bank, char *buf, int buf_size)
snprintf(buf, buf_size, "unknown");
break;
}
- }
- else if ((device_id & 0x7ff) == 0x420)
- {
+ } else if ((device_id & 0xfff) == 0x420) {
printed = snprintf(buf, buf_size, "stm32x (Value) - Rev: ");
buf += printed;
buf_size -= printed;
- switch (device_id >> 16)
- {
+ switch (device_id >> 16) {
case 0x1000:
snprintf(buf, buf_size, "A");
break;
@@ -1153,15 +1162,12 @@ static int get_stm32x_info(struct flash_bank *bank, char *buf, int buf_size)
snprintf(buf, buf_size, "unknown");
break;
}
- }
- else if ((device_id & 0x7ff) == 0x428)
- {
+ } else if ((device_id & 0xfff) == 0x428) {
printed = snprintf(buf, buf_size, "stm32x (Value HD) - Rev: ");
buf += printed;
buf_size -= printed;
- switch (device_id >> 16)
- {
+ switch (device_id >> 16) {
case 0x1000:
snprintf(buf, buf_size, "A");
break;
@@ -1174,15 +1180,12 @@ static int get_stm32x_info(struct flash_bank *bank, char *buf, int buf_size)
snprintf(buf, buf_size, "unknown");
break;
}
- }
- else if ((device_id & 0x7ff) == 0x430)
- {
+ } else if ((device_id & 0xfff) == 0x430) {
printed = snprintf(buf, buf_size, "stm32x (XL) - Rev: ");
buf += printed;
buf_size -= printed;
- switch (device_id >> 16)
- {
+ switch (device_id >> 16) {
case 0x1000:
snprintf(buf, buf_size, "A");
break;
@@ -1191,9 +1194,25 @@ static int get_stm32x_info(struct flash_bank *bank, char *buf, int buf_size)
snprintf(buf, buf_size, "unknown");
break;
}
- }
- else
- {
+ } else if ((device_id & 0xfff) == 0x440) {
+ printed = snprintf(buf, buf_size, "stm32f0x - Rev: ");
+ buf += printed;
+ buf_size -= printed;
+
+ switch (device_id >> 16) {
+ case 0x1000:
+ snprintf(buf, buf_size, "1.0");
+ break;
+
+ case 0x2000:
+ snprintf(buf, buf_size, "2.0");
+ break;
+
+ default:
+ snprintf(buf, buf_size, "unknown");
+ break;
+ }
+ } else {
snprintf(buf, buf_size, "Cannot identify target as a stm32x\n");
return ERROR_FAIL;
}
@@ -1207,10 +1226,7 @@ COMMAND_HANDLER(stm32x_handle_lock_command)
struct stm32x_flash_bank *stm32x_info = NULL;
if (CMD_ARGC < 1)
- {
- command_print(CMD_CTX, "stm32x lock ");
- return ERROR_OK;
- }
+ return ERROR_COMMAND_SYNTAX_ERROR;
struct flash_bank *bank;
int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
@@ -1221,8 +1237,7 @@ COMMAND_HANDLER(stm32x_handle_lock_command)
target = bank->target;
- if (target->state != TARGET_HALTED)
- {
+ if (target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
@@ -1231,8 +1246,7 @@ COMMAND_HANDLER(stm32x_handle_lock_command)
if (ERROR_OK != retval)
return retval;
- if (stm32x_erase_options(bank) != ERROR_OK)
- {
+ if (stm32x_erase_options(bank) != ERROR_OK) {
command_print(CMD_CTX, "stm32x failed to erase options");
return ERROR_OK;
}
@@ -1240,8 +1254,7 @@ COMMAND_HANDLER(stm32x_handle_lock_command)
/* set readout protection */
stm32x_info->option_bytes.RDP = 0;
- if (stm32x_write_options(bank) != ERROR_OK)
- {
+ if (stm32x_write_options(bank) != ERROR_OK) {
command_print(CMD_CTX, "stm32x failed to lock device");
return ERROR_OK;
}
@@ -1256,10 +1269,7 @@ COMMAND_HANDLER(stm32x_handle_unlock_command)
struct target *target = NULL;
if (CMD_ARGC < 1)
- {
- command_print(CMD_CTX, "stm32x unlock ");
- return ERROR_OK;
- }
+ return ERROR_COMMAND_SYNTAX_ERROR;
struct flash_bank *bank;
int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
@@ -1268,8 +1278,7 @@ COMMAND_HANDLER(stm32x_handle_unlock_command)
target = bank->target;
- if (target->state != TARGET_HALTED)
- {
+ if (target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
@@ -1278,14 +1287,12 @@ COMMAND_HANDLER(stm32x_handle_unlock_command)
if (ERROR_OK != retval)
return retval;
- if (stm32x_erase_options(bank) != ERROR_OK)
- {
+ if (stm32x_erase_options(bank) != ERROR_OK) {
command_print(CMD_CTX, "stm32x failed to unlock device");
return ERROR_OK;
}
- if (stm32x_write_options(bank) != ERROR_OK)
- {
+ if (stm32x_write_options(bank) != ERROR_OK) {
command_print(CMD_CTX, "stm32x failed to lock device");
return ERROR_OK;
}
@@ -1304,10 +1311,7 @@ COMMAND_HANDLER(stm32x_handle_options_read_command)
struct stm32x_flash_bank *stm32x_info = NULL;
if (CMD_ARGC < 1)
- {
- command_print(CMD_CTX, "stm32x options_read ");
- return ERROR_OK;
- }
+ return ERROR_COMMAND_SYNTAX_ERROR;
struct flash_bank *bank;
int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
@@ -1318,8 +1322,7 @@ COMMAND_HANDLER(stm32x_handle_options_read_command)
target = bank->target;
- if (target->state != TARGET_HALTED)
- {
+ if (target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
@@ -1328,37 +1331,36 @@ COMMAND_HANDLER(stm32x_handle_options_read_command)
if (ERROR_OK != retval)
return retval;
- retval = target_read_u32(target, STM32_FLASH_OBR, &optionbyte);
+ retval = target_read_u32(target, STM32_FLASH_OBR_B0, &optionbyte);
if (retval != ERROR_OK)
return retval;
command_print(CMD_CTX, "Option Byte: 0x%" PRIx32 "", optionbyte);
- if (buf_get_u32((uint8_t*)&optionbyte, OPT_ERROR, 1))
+ if (buf_get_u32((uint8_t *)&optionbyte, OPT_ERROR, 1))
command_print(CMD_CTX, "Option Byte Complement Error");
- if (buf_get_u32((uint8_t*)&optionbyte, OPT_READOUT, 1))
+ if (buf_get_u32((uint8_t *)&optionbyte, OPT_READOUT, 1))
command_print(CMD_CTX, "Readout Protection On");
else
command_print(CMD_CTX, "Readout Protection Off");
- if (buf_get_u32((uint8_t*)&optionbyte, OPT_RDWDGSW, 1))
+ if (buf_get_u32((uint8_t *)&optionbyte, OPT_RDWDGSW, 1))
command_print(CMD_CTX, "Software Watchdog");
else
command_print(CMD_CTX, "Hardware Watchdog");
- if (buf_get_u32((uint8_t*)&optionbyte, OPT_RDRSTSTOP, 1))
+ if (buf_get_u32((uint8_t *)&optionbyte, OPT_RDRSTSTOP, 1))
command_print(CMD_CTX, "Stop: No reset generated");
else
command_print(CMD_CTX, "Stop: Reset generated");
- if (buf_get_u32((uint8_t*)&optionbyte, OPT_RDRSTSTDBY, 1))
+ if (buf_get_u32((uint8_t *)&optionbyte, OPT_RDRSTSTDBY, 1))
command_print(CMD_CTX, "Standby: No reset generated");
else
command_print(CMD_CTX, "Standby: Reset generated");
- if (stm32x_info->has_dual_banks)
- {
- if (buf_get_u32((uint8_t*)&optionbyte, OPT_BFB2, 1))
+ if (stm32x_info->has_dual_banks) {
+ if (buf_get_u32((uint8_t *)&optionbyte, OPT_BFB2, 1))
command_print(CMD_CTX, "Boot: Bank 0");
else
command_print(CMD_CTX, "Boot: Bank 1");
@@ -1374,11 +1376,7 @@ COMMAND_HANDLER(stm32x_handle_options_write_command)
uint16_t optionbyte = 0xF8;
if (CMD_ARGC < 4)
- {
- command_print(CMD_CTX, "stm32x options_write "
- " ");
- return ERROR_OK;
- }
+ return ERROR_COMMAND_SYNTAX_ERROR;
struct flash_bank *bank;
int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
@@ -1389,8 +1387,7 @@ COMMAND_HANDLER(stm32x_handle_options_write_command)
target = bank->target;
- if (target->state != TARGET_HALTED)
- {
+ if (target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
@@ -1405,57 +1402,38 @@ COMMAND_HANDLER(stm32x_handle_options_write_command)
/* OPT_RDWDGSW */
if (strcmp(CMD_ARGV[1], "SWWDG") == 0)
- {
optionbyte |= (1 << 0);
- }
else /* REVISIT must be "HWWDG" then ... */
- {
optionbyte &= ~(1 << 0);
- }
/* OPT_RDRSTSTOP */
if (strcmp(CMD_ARGV[2], "NORSTSTOP") == 0)
- {
optionbyte |= (1 << 1);
- }
else /* REVISIT must be "RSTSTNDBY" then ... */
- {
optionbyte &= ~(1 << 1);
- }
/* OPT_RDRSTSTDBY */
if (strcmp(CMD_ARGV[3], "NORSTSTNDBY") == 0)
- {
optionbyte |= (1 << 2);
- }
else /* REVISIT must be "RSTSTOP" then ... */
- {
optionbyte &= ~(1 << 2);
- }
- if (CMD_ARGC > 4 && stm32x_info->has_dual_banks)
- {
+ if (CMD_ARGC > 4 && stm32x_info->has_dual_banks) {
/* OPT_BFB2 */
if (strcmp(CMD_ARGV[4], "BOOT0") == 0)
- {
optionbyte |= (1 << 3);
- }
else
- {
optionbyte &= ~(1 << 3);
- }
}
- if (stm32x_erase_options(bank) != ERROR_OK)
- {
+ if (stm32x_erase_options(bank) != ERROR_OK) {
command_print(CMD_CTX, "stm32x failed to erase options");
return ERROR_OK;
}
stm32x_info->option_bytes.user_options = optionbyte;
- if (stm32x_write_options(bank) != ERROR_OK)
- {
+ if (stm32x_write_options(bank) != ERROR_OK) {
command_print(CMD_CTX, "stm32x failed to write options");
return ERROR_OK;
}
@@ -1471,8 +1449,7 @@ static int stm32x_mass_erase(struct flash_bank *bank)
{
struct target *target = bank->target;
- if (target->state != TARGET_HALTED)
- {
+ if (target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
@@ -1489,7 +1466,8 @@ static int stm32x_mass_erase(struct flash_bank *bank)
retval = target_write_u32(target, stm32x_get_flash_reg(bank, STM32_FLASH_CR), FLASH_MER);
if (retval != ERROR_OK)
return retval;
- retval = target_write_u32(target, stm32x_get_flash_reg(bank, STM32_FLASH_CR), FLASH_MER | FLASH_STRT);
+ retval = target_write_u32(target, stm32x_get_flash_reg(bank, STM32_FLASH_CR),
+ FLASH_MER | FLASH_STRT);
if (retval != ERROR_OK)
return retval;
@@ -1509,10 +1487,7 @@ COMMAND_HANDLER(stm32x_handle_mass_erase_command)
int i;
if (CMD_ARGC < 1)
- {
- command_print(CMD_CTX, "stm32x mass_erase ");
- return ERROR_OK;
- }
+ return ERROR_COMMAND_SYNTAX_ERROR;
struct flash_bank *bank;
int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
@@ -1520,20 +1495,14 @@ COMMAND_HANDLER(stm32x_handle_mass_erase_command)
return retval;
retval = stm32x_mass_erase(bank);
- if (retval == ERROR_OK)
- {
+ if (retval == 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
- {
+ } else
command_print(CMD_CTX, "stm32x mass erase failed");
- }
return retval;
}
@@ -1584,6 +1553,7 @@ static const struct command_registration stm32x_command_handlers[] = {
.name = "stm32f1x",
.mode = COMMAND_ANY,
.help = "stm32f1x flash command group",
+ .usage = "",
.chain = stm32x_exec_command_handlers,
},
COMMAND_REGISTRATION_DONE