+// SPDX-License-Identifier: GPL-2.0-or-later
+
/***************************************************************************
* Copyright (C) 2017 by STMicroelectronics *
- * *
- * 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 *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program. If not, see <http://www.gnu.org/licenses/>. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#include "imp.h"
#include <helper/binarybuffer.h>
#include <target/algorithm.h>
-#include <target/armv7m.h>
+#include <target/cortex_m.h>
/* Erase time can be as high as 1000ms, 10x this and it's toast... */
#define FLASH_FW (1 << 6)
#define FLASH_START (1 << 7)
-#define FLASH_SNB(a) ((a) << 8)
-
/* FLASH_SR register bits */
#define FLASH_BSY (1 << 0) /* Operation in progress */
#define FLASH_QW (1 << 2) /* Operation queue in progress */
#define OPT_BSY (1 << 0)
#define OPT_RDP_POS 8
#define OPT_RDP_MASK (0xff << OPT_RDP_POS)
+#define OPT_OPTCHANGEERR (1 << 30)
/* FLASH_OPTCCR register bits */
#define OPT_CLR_OPTCHANGEERR (1 << 30)
#define FLASH_BANK1_ADDRESS 0x08100000
#define FLASH_REG_BASE_B0 0x52002000
#define FLASH_REG_BASE_B1 0x52002100
-#define FLASH_SIZE_ADDRESS 0x1FF1E880
-#define FLASH_BLOCK_SIZE 32
+
+/* Supported device IDs */
+#define DEVID_STM32H74_H75XX 0x450
+#define DEVID_STM32H7A_H7BXX 0x480
+#define DEVID_STM32H72_H73XX 0x483
struct stm32h7x_rev {
uint16_t rev;
const char *str;
};
+/* stm32h7x_part_info permits the store each device information and specificities.
+ * the default unit is byte unless the suffix '_kb' is used. */
+
struct stm32h7x_part_info {
uint16_t id;
const char *device_str;
const struct stm32h7x_rev *revs;
size_t num_revs;
- unsigned int page_size;
+ unsigned int page_size_kb;
+ unsigned int block_size; /* flash write word size in bytes */
uint16_t max_flash_size_kb;
- uint8_t has_dual_bank;
- uint16_t first_bank_size_kb; /* Used when has_dual_bank is true */
- uint32_t flash_regs_base; /* Flash controller registers location */
- uint32_t fsize_addr; /* Location of FSIZE register */
+ bool has_dual_bank;
+ uint16_t max_bank_size_kb; /* Used when has_dual_bank is true */
+ uint32_t fsize_addr; /* Location of FSIZE register */
+ uint32_t wps_group_size; /* write protection group sectors' count */
+ uint32_t wps_mask;
+ /* function to compute flash_cr register values */
+ uint32_t (*compute_flash_cr)(uint32_t cmd, int snb);
};
struct stm32h7x_flash_bank {
- int probed;
+ bool probed;
uint32_t idcode;
uint32_t user_bank_size;
uint32_t flash_regs_base; /* Address of flash reg controller */
OPT_RDP_L2 = 0xcc
};
-static const struct stm32h7x_rev stm32_450_revs[] = {
+static const struct stm32h7x_rev stm32h74_h75xx_revs[] = {
{ 0x1000, "A" }, { 0x1001, "Z" }, { 0x1003, "Y" }, { 0x2001, "X" }, { 0x2003, "V" },
};
+static const struct stm32h7x_rev stm32h7a_h7bxx_revs[] = {
+ { 0x1000, "A"},
+};
+
+static const struct stm32h7x_rev stm32h72_h73xx_revs[] = {
+ { 0x1000, "A" }, { 0x1001, "Z" },
+};
+
+static uint32_t stm32h74_h75xx_compute_flash_cr(uint32_t cmd, int snb)
+{
+ return cmd | (snb << 8);
+}
+
+static uint32_t stm32h7a_h7bxx_compute_flash_cr(uint32_t cmd, int snb)
+{
+ /* save FW and START bits, to be right shifted by 2 bits later */
+ const uint32_t tmp = cmd & (FLASH_FW | FLASH_START);
+
+ /* mask parallelism (ignored), FW and START bits */
+ cmd &= ~(FLASH_PSIZE_64 | FLASH_FW | FLASH_START);
+
+ return cmd | (tmp >> 2) | (snb << 6);
+}
+
static const struct stm32h7x_part_info stm32h7x_parts[] = {
{
- .id = 0x450,
- .revs = stm32_450_revs,
- .num_revs = ARRAY_SIZE(stm32_450_revs),
+ .id = DEVID_STM32H74_H75XX,
+ .revs = stm32h74_h75xx_revs,
+ .num_revs = ARRAY_SIZE(stm32h74_h75xx_revs),
.device_str = "STM32H74x/75x",
- .page_size = 128, /* 128 KB */
+ .page_size_kb = 128,
+ .block_size = 32,
.max_flash_size_kb = 2048,
- .first_bank_size_kb = 1024,
- .has_dual_bank = 1,
- .flash_regs_base = FLASH_REG_BASE_B0,
- .fsize_addr = FLASH_SIZE_ADDRESS,
+ .max_bank_size_kb = 1024,
+ .has_dual_bank = true,
+ .fsize_addr = 0x1FF1E880,
+ .wps_group_size = 1,
+ .wps_mask = 0xFF,
+ .compute_flash_cr = stm32h74_h75xx_compute_flash_cr,
+ },
+ {
+ .id = DEVID_STM32H7A_H7BXX,
+ .revs = stm32h7a_h7bxx_revs,
+ .num_revs = ARRAY_SIZE(stm32h7a_h7bxx_revs),
+ .device_str = "STM32H7Ax/7Bx",
+ .page_size_kb = 8,
+ .block_size = 16,
+ .max_flash_size_kb = 2048,
+ .max_bank_size_kb = 1024,
+ .has_dual_bank = true,
+ .fsize_addr = 0x08FFF80C,
+ .wps_group_size = 4,
+ .wps_mask = 0xFFFFFFFF,
+ .compute_flash_cr = stm32h7a_h7bxx_compute_flash_cr,
+ },
+ {
+ .id = DEVID_STM32H72_H73XX,
+ .revs = stm32h72_h73xx_revs,
+ .num_revs = ARRAY_SIZE(stm32h72_h73xx_revs),
+ .device_str = "STM32H72x/73x",
+ .page_size_kb = 128,
+ .block_size = 32,
+ .max_flash_size_kb = 1024,
+ .max_bank_size_kb = 1024,
+ .has_dual_bank = false,
+ .fsize_addr = 0x1FF1E880,
+ .wps_group_size = 1,
+ .wps_mask = 0xFF,
+ .compute_flash_cr = stm32h74_h75xx_compute_flash_cr,
},
};
stm32x_info = malloc(sizeof(struct stm32h7x_flash_bank));
bank->driver_priv = stm32x_info;
- stm32x_info->probed = 0;
+ stm32x_info->probed = false;
stm32x_info->user_bank_size = bank->size;
return ERROR_OK;
break;
if (timeout-- <= 0) {
- LOG_ERROR("wait_flash_op_queue, time out expired, status: 0x%" PRIx32 "", status);
+ LOG_ERROR("wait_flash_op_queue, time out expired, status: 0x%" PRIx32, status);
return ERROR_FAIL;
}
alive_sleep(1);
return retval;
if (ctrl & FLASH_LOCK) {
- LOG_ERROR("flash not unlocked STM32_FLASH_CRx: %" PRIx32, ctrl);
+ LOG_ERROR("flash not unlocked STM32_FLASH_CRx: 0x%" PRIx32, ctrl);
return ERROR_TARGET_FAILURE;
}
return ERROR_OK;
return retval;
if (ctrl & OPT_LOCK) {
- LOG_ERROR("options not unlocked STM32_FLASH_OPTCR: %" PRIx32, ctrl);
+ LOG_ERROR("options not unlocked STM32_FLASH_OPTCR: 0x%" PRIx32, ctrl);
return ERROR_TARGET_FAILURE;
}
/* wait for completion */
int timeout = FLASH_ERASE_TIMEOUT;
+ uint32_t status;
for (;;) {
- uint32_t status;
retval = stm32x_read_flash_reg(bank, FLASH_OPTSR_CUR, &status);
if (retval != ERROR_OK) {
LOG_ERROR("stm32x_options_program: failed to read FLASH_OPTSR_CUR");
break;
if (timeout-- <= 0) {
- LOG_ERROR("waiting for OBL launch, time out expired, OPTSR: 0x%" PRIx32 "", status);
+ LOG_ERROR("waiting for OBL launch, time out expired, OPTSR: 0x%" PRIx32, status);
retval = ERROR_FAIL;
goto flash_options_lock;
}
alive_sleep(1);
}
+ /* check for failure */
+ if (status & OPT_OPTCHANGEERR) {
+ LOG_ERROR("error changing option bytes (OPTCHANGEERR=1)");
+ retval = ERROR_FLASH_OPERATION_FAILED;
+ }
+
flash_options_lock:
retval2 = stm32x_lock_option_reg(bank);
if (retval2 != ERROR_OK)
return retval;
}
- for (int i = 0; i < bank->num_sectors; i++) {
- bank->sectors[i].is_protected = protection & (1 << i) ? 0 : 1;
- }
+ for (unsigned int i = 0; i < bank->num_prot_blocks; i++)
+ bank->prot_blocks[i].is_protected = protection & (1 << i) ? 0 : 1;
+
return ERROR_OK;
}
-static int stm32x_erase(struct flash_bank *bank, int first, int last)
+static int stm32x_erase(struct flash_bank *bank, unsigned int first,
+ unsigned int last)
{
+ struct stm32h7x_flash_bank *stm32x_info = bank->driver_priv;
int retval, retval2;
assert(first < bank->num_sectors);
3. Set the STRT bit in the FLASH_CR register
4. Wait for flash operations completion
*/
- for (int i = first; i <= last; i++) {
- LOG_DEBUG("erase sector %d", i);
+ for (unsigned int i = first; i <= last; i++) {
+ LOG_DEBUG("erase sector %u", i);
retval = stm32x_write_flash_reg(bank, FLASH_CR,
- FLASH_SER | FLASH_SNB(i) | FLASH_PSIZE_64);
+ stm32x_info->part_info->compute_flash_cr(FLASH_SER | FLASH_PSIZE_64, i));
if (retval != ERROR_OK) {
- LOG_ERROR("Error erase sector %d", i);
+ LOG_ERROR("Error erase sector %u", i);
goto flash_lock;
}
retval = stm32x_write_flash_reg(bank, FLASH_CR,
- FLASH_SER | FLASH_SNB(i) | FLASH_PSIZE_64 | FLASH_START);
+ stm32x_info->part_info->compute_flash_cr(FLASH_SER | FLASH_PSIZE_64 | FLASH_START, i));
if (retval != ERROR_OK) {
- LOG_ERROR("Error erase sector %d", i);
+ LOG_ERROR("Error erase sector %u", i);
goto flash_lock;
}
retval = stm32x_wait_flash_op_queue(bank, FLASH_ERASE_TIMEOUT);
if (retval != ERROR_OK) {
- LOG_ERROR("erase time-out or operation error sector %d", i);
+ LOG_ERROR("erase time-out or operation error sector %u", i);
goto flash_lock;
}
- bank->sectors[i].is_erased = 1;
}
flash_lock:
return (retval == ERROR_OK) ? retval2 : retval;
}
-static int stm32x_protect(struct flash_bank *bank, int set, int first, int last)
+static int stm32x_protect(struct flash_bank *bank, int set, unsigned int first,
+ unsigned int last)
{
struct target *target = bank->target;
+ struct stm32h7x_flash_bank *stm32x_info = bank->driver_priv;
uint32_t protection;
if (target->state != TARGET_HALTED) {
return retval;
}
- for (int i = first; i <= last; i++) {
+ for (unsigned int i = first; i <= last; i++) {
if (set)
protection &= ~(1 << i);
else
}
/* apply WRPSN mask */
- protection &= 0xff;
+ protection &= stm32x_info->part_info->wps_mask;
LOG_DEBUG("stm32x_protect, option_bytes written WPSN 0x%" PRIx32, protection);
uint32_t offset, uint32_t count)
{
struct target *target = bank->target;
+ struct stm32h7x_flash_bank *stm32x_info = bank->driver_priv;
/*
- * If the size of the data part of the buffer is not a multiple of FLASH_BLOCK_SIZE, we get
+ * If the size of the data part of the buffer is not a multiple of .block_size, we get
* "corrupted fifo read" pointer in target_run_flash_async_algorithm()
*/
- uint32_t data_size = 512 * FLASH_BLOCK_SIZE; /* 16384 */
+ uint32_t data_size = 512 * stm32x_info->part_info->block_size;
uint32_t buffer_size = 8 + data_size;
struct working_area *write_algorithm;
struct working_area *source;
uint32_t address = bank->base + offset;
- struct reg_param reg_params[5];
+ struct reg_param reg_params[6];
struct armv7m_algorithm armv7m_info;
- struct stm32h7x_flash_bank *stm32x_info = bank->driver_priv;
int retval = ERROR_OK;
static const uint8_t stm32x_flash_write_code[] = {
init_reg_param(®_params[0], "r0", 32, PARAM_IN_OUT); /* buffer start, status (out) */
init_reg_param(®_params[1], "r1", 32, PARAM_OUT); /* buffer end */
init_reg_param(®_params[2], "r2", 32, PARAM_OUT); /* target address */
- init_reg_param(®_params[3], "r3", 32, PARAM_OUT); /* count (word-256 bits) */
- init_reg_param(®_params[4], "r4", 32, PARAM_OUT); /* flash reg base */
+ init_reg_param(®_params[3], "r3", 32, PARAM_OUT); /* count of words (word size = .block_size (bytes) */
+ init_reg_param(®_params[4], "r4", 32, PARAM_OUT); /* word size in bytes */
+ init_reg_param(®_params[5], "r5", 32, PARAM_OUT); /* flash reg base */
buf_set_u32(reg_params[0].value, 0, 32, source->address);
buf_set_u32(reg_params[1].value, 0, 32, source->address + source->size);
buf_set_u32(reg_params[2].value, 0, 32, address);
buf_set_u32(reg_params[3].value, 0, 32, count);
- buf_set_u32(reg_params[4].value, 0, 32, stm32x_info->flash_regs_base);
+ buf_set_u32(reg_params[4].value, 0, 32, stm32x_info->part_info->block_size);
+ buf_set_u32(reg_params[5].value, 0, 32, stm32x_info->flash_regs_base);
retval = target_run_flash_async_algorithm(target,
buffer,
count,
- FLASH_BLOCK_SIZE,
+ stm32x_info->part_info->block_size,
0, NULL,
- 5, reg_params,
+ ARRAY_SIZE(reg_params), reg_params,
source->address, source->size,
write_algorithm->address, 0,
&armv7m_info);
LOG_ERROR("flash memory write protected");
if ((flash_sr & FLASH_ERROR) != 0) {
- LOG_ERROR("flash write failed, FLASH_SR = %08" PRIx32, flash_sr);
+ LOG_ERROR("flash write failed, FLASH_SR = 0x%08" PRIx32, flash_sr);
/* Clear error + EOP flags but report errors */
stm32x_write_flash_reg(bank, FLASH_CCR, flash_sr);
retval = ERROR_FAIL;
destroy_reg_param(®_params[2]);
destroy_reg_param(®_params[3]);
destroy_reg_param(®_params[4]);
+ destroy_reg_param(®_params[5]);
return retval;
}
uint32_t offset, uint32_t count)
{
struct target *target = bank->target;
+ struct stm32h7x_flash_bank *stm32x_info = bank->driver_priv;
uint32_t address = bank->base + offset;
int retval, retval2;
return ERROR_TARGET_NOT_HALTED;
}
- if (offset % FLASH_BLOCK_SIZE) {
- LOG_WARNING("offset 0x%" PRIx32 " breaks required 32-byte alignment", offset);
- return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
- }
+ /* should be enforced via bank->write_start_alignment */
+ assert(!(offset % stm32x_info->part_info->block_size));
+
+ /* should be enforced via bank->write_end_alignment */
+ assert(!(count % stm32x_info->part_info->block_size));
retval = stm32x_unlock_reg(bank);
if (retval != ERROR_OK)
goto flash_lock;
- uint32_t blocks_remaining = count / FLASH_BLOCK_SIZE;
- uint32_t bytes_remaining = count % FLASH_BLOCK_SIZE;
+ uint32_t blocks_remaining = count / stm32x_info->part_info->block_size;
- /* multiple words (32-bytes) to be programmed in block */
+ /* multiple words (n * .block_size) to be programmed in block */
if (blocks_remaining) {
retval = stm32x_write_block(bank, buffer, offset, blocks_remaining);
if (retval != ERROR_OK) {
LOG_WARNING("couldn't use block writes, falling back to single memory accesses");
}
} else {
- buffer += blocks_remaining * FLASH_BLOCK_SIZE;
- address += blocks_remaining * FLASH_BLOCK_SIZE;
+ buffer += blocks_remaining * stm32x_info->part_info->block_size;
+ address += blocks_remaining * stm32x_info->part_info->block_size;
blocks_remaining = 0;
}
if ((retval != ERROR_OK) && (retval != ERROR_TARGET_RESOURCE_NOT_AVAILABLE))
4. Wait for flash operations completion
*/
while (blocks_remaining > 0) {
- retval = stm32x_write_flash_reg(bank, FLASH_CR, FLASH_PG | FLASH_PSIZE_64);
+ retval = stm32x_write_flash_reg(bank, FLASH_CR,
+ stm32x_info->part_info->compute_flash_cr(FLASH_PG | FLASH_PSIZE_64, 0));
if (retval != ERROR_OK)
goto flash_lock;
- retval = target_write_buffer(target, address, FLASH_BLOCK_SIZE, buffer);
+ retval = target_write_buffer(target, address, stm32x_info->part_info->block_size, buffer);
if (retval != ERROR_OK)
goto flash_lock;
if (retval != ERROR_OK)
goto flash_lock;
- buffer += FLASH_BLOCK_SIZE;
- address += FLASH_BLOCK_SIZE;
+ buffer += stm32x_info->part_info->block_size;
+ address += stm32x_info->part_info->block_size;
blocks_remaining--;
}
- if (bytes_remaining) {
- retval = stm32x_write_flash_reg(bank, FLASH_CR, FLASH_PG | FLASH_PSIZE_64);
- if (retval != ERROR_OK)
- goto flash_lock;
-
- retval = target_write_buffer(target, address, bytes_remaining, buffer);
- if (retval != ERROR_OK)
- goto flash_lock;
-
- /* Force Write buffer of FLASH_BLOCK_SIZE = 32 bytes */
- retval = stm32x_write_flash_reg(bank, FLASH_CR, FLASH_PG | FLASH_PSIZE_64 | FLASH_FW);
- if (retval != ERROR_OK)
- goto flash_lock;
-
- retval = stm32x_wait_flash_op_queue(bank, FLASH_WRITE_TIMEOUT);
- if (retval != ERROR_OK)
- goto flash_lock;
- }
-
flash_lock:
retval2 = stm32x_lock_reg(bank);
if (retval2 != ERROR_OK)
return (retval == ERROR_OK) ? retval2 : retval;
}
-static void setup_sector(struct flash_bank *bank, int start, int num, int size)
-{
- for (int i = start; i < (start + num) ; i++) {
- assert(i < bank->num_sectors);
- bank->sectors[i].offset = bank->size;
- bank->sectors[i].size = size;
- bank->size += bank->sectors[i].size;
- }
-}
-
static int stm32x_read_id_code(struct flash_bank *bank, uint32_t *id)
{
/* read stm32 device id register */
{
struct target *target = bank->target;
struct stm32h7x_flash_bank *stm32x_info = bank->driver_priv;
- int i;
uint16_t flash_size_in_kb;
uint32_t device_id;
- uint32_t base_address = FLASH_BANK0_ADDRESS;
- uint32_t second_bank_base;
- stm32x_info->probed = 0;
+ stm32x_info->probed = false;
stm32x_info->part_info = NULL;
+ if (!target_was_examined(target)) {
+ LOG_ERROR("Target not examined yet");
+ return ERROR_TARGET_NOT_EXAMINED;
+ }
+
int retval = stm32x_read_id_code(bank, &stm32x_info->idcode);
if (retval != ERROR_OK)
return retval;
- LOG_DEBUG("device id = 0x%08" PRIx32 "", stm32x_info->idcode);
+ LOG_DEBUG("device id = 0x%08" PRIx32, stm32x_info->idcode);
device_id = stm32x_info->idcode & 0xfff;
LOG_INFO("Device: %s", stm32x_info->part_info->device_str);
}
- /* update the address of controller from data base */
- stm32x_info->flash_regs_base = stm32x_info->part_info->flash_regs_base;
+ /* update the address of controller */
+ if (bank->base == FLASH_BANK0_ADDRESS)
+ stm32x_info->flash_regs_base = FLASH_REG_BASE_B0;
+ else if (bank->base == FLASH_BANK1_ADDRESS)
+ stm32x_info->flash_regs_base = FLASH_REG_BASE_B1;
+ else {
+ LOG_WARNING("Flash register base not defined for bank %u", bank->bank_number);
+ return ERROR_FAIL;
+ }
+ LOG_DEBUG("flash_regs_base: 0x%" PRIx32, stm32x_info->flash_regs_base);
/* get flash size from target */
- retval = target_read_u16(target, stm32x_info->part_info->fsize_addr, &flash_size_in_kb);
+ /* STM32H74x/H75x, the second core (Cortex-M4) cannot read the flash size */
+ retval = ERROR_FAIL;
+ if (device_id == DEVID_STM32H74_H75XX
+ && cortex_m_get_impl_part(target) == CORTEX_M4_PARTNO)
+ LOG_WARNING("%s cannot read the flash size register", target_name(target));
+ else
+ retval = target_read_u16(target, stm32x_info->part_info->fsize_addr, &flash_size_in_kb);
+
if (retval != ERROR_OK) {
/* read error when device has invalid value, set max flash size */
flash_size_in_kb = stm32x_info->part_info->max_flash_size_kb;
+ LOG_INFO("assuming %" PRIu16 "k flash", flash_size_in_kb);
} else
- LOG_INFO("flash size probed value %d", flash_size_in_kb);
-
- /* Lower flash size devices are single bank */
- if (stm32x_info->part_info->has_dual_bank && (flash_size_in_kb > stm32x_info->part_info->first_bank_size_kb)) {
- /* Use the configured base address to determine if this is the first or second flash bank.
- * Verify that the base address is reasonably correct and determine the flash bank size
+ LOG_INFO("flash size probed value %" PRIu16 "k", flash_size_in_kb);
+
+ /* setup bank size */
+ const uint32_t bank1_base = FLASH_BANK0_ADDRESS;
+ const uint32_t bank2_base = bank1_base + stm32x_info->part_info->max_bank_size_kb * 1024;
+ bool has_dual_bank = stm32x_info->part_info->has_dual_bank;
+
+ switch (device_id) {
+ case DEVID_STM32H74_H75XX:
+ case DEVID_STM32H7A_H7BXX:
+ /* For STM32H74x/75x and STM32H7Ax/Bx
+ * - STM32H7xxxI devices contains dual bank, 1 Mbyte each
+ * - STM32H7xxxG devices contains dual bank, 512 Kbyte each
+ * - STM32H7xxxB devices contains single bank, 128 Kbyte
+ * - the second bank starts always from 0x08100000
*/
- second_bank_base = base_address + stm32x_info->part_info->first_bank_size_kb * 1024;
- if (bank->base == second_bank_base) {
- /* This is the second bank */
- base_address = second_bank_base;
- flash_size_in_kb = flash_size_in_kb - stm32x_info->part_info->first_bank_size_kb;
- /* bank1 also uses a register offset */
- stm32x_info->flash_regs_base = FLASH_REG_BASE_B1;
- } else if (bank->base == base_address) {
- /* This is the first bank */
- flash_size_in_kb = stm32x_info->part_info->first_bank_size_kb;
- } else {
- LOG_WARNING("STM32H flash bank base address config is incorrect. "
- TARGET_ADDR_FMT " but should rather be 0x%" PRIx32 " or 0x%" PRIx32,
- bank->base, base_address, second_bank_base);
+ if (flash_size_in_kb == 128)
+ has_dual_bank = false;
+ else
+ /* flash size is 2M or 1M */
+ flash_size_in_kb /= 2;
+ break;
+ case DEVID_STM32H72_H73XX:
+ break;
+ default:
+ LOG_ERROR("unsupported device");
+ return ERROR_FAIL;
+ }
+
+ if (has_dual_bank) {
+ LOG_INFO("STM32H7 flash has dual banks");
+ if (bank->base != bank1_base && bank->base != bank2_base) {
+ LOG_ERROR("STM32H7 flash bank base address config is incorrect. "
+ TARGET_ADDR_FMT " but should rather be 0x%" PRIx32 " or 0x%" PRIx32,
+ bank->base, bank1_base, bank2_base);
return ERROR_FAIL;
}
- LOG_INFO("STM32H flash has dual banks. Bank (%d) size is %dkb, base address is 0x%" PRIx32,
- bank->bank_number, flash_size_in_kb, base_address);
} else {
- LOG_INFO("STM32H flash size is %dkb, base address is 0x%" PRIx32, flash_size_in_kb, base_address);
+ LOG_INFO("STM32H7 flash has a single bank");
+ if (bank->base == bank2_base) {
+ LOG_ERROR("this device has a single bank only");
+ return ERROR_FAIL;
+ } else if (bank->base != bank1_base) {
+ LOG_ERROR("STM32H7 flash bank base address config is incorrect. "
+ TARGET_ADDR_FMT " but should be 0x%" PRIx32,
+ bank->base, bank1_base);
+ return ERROR_FAIL;
+ }
}
+ LOG_INFO("Bank (%u) size is %" PRIu16 " kb, base address is " TARGET_ADDR_FMT,
+ bank->bank_number, flash_size_in_kb, bank->base);
+
/* if the user sets the size manually then ignore the probed value
* this allows us to work around devices that have an invalid flash size register value */
if (stm32x_info->user_bank_size) {
/* did we assign flash size? */
assert(flash_size_in_kb != 0xffff);
+ bank->size = flash_size_in_kb * 1024;
+ bank->write_start_alignment = stm32x_info->part_info->block_size;
+ bank->write_end_alignment = stm32x_info->part_info->block_size;
- /* calculate numbers of pages */
- int num_pages = flash_size_in_kb / stm32x_info->part_info->page_size;
+ /* setup sectors */
+ bank->num_sectors = flash_size_in_kb / stm32x_info->part_info->page_size_kb;
+ assert(bank->num_sectors > 0);
- /* check that calculation result makes sense */
- assert(num_pages > 0);
+ free(bank->sectors);
- if (bank->sectors) {
- free(bank->sectors);
- bank->sectors = NULL;
- }
+ bank->sectors = alloc_block_array(0, stm32x_info->part_info->page_size_kb * 1024,
+ bank->num_sectors);
- bank->base = base_address;
- bank->num_sectors = num_pages;
- bank->sectors = malloc(sizeof(struct flash_sector) * num_pages);
- if (bank->sectors == NULL) {
+ if (!bank->sectors) {
LOG_ERROR("failed to allocate bank sectors");
return ERROR_FAIL;
}
- bank->size = 0;
- /* fixed memory */
- setup_sector(bank, 0, num_pages, stm32x_info->part_info->page_size * 1024);
+ /* setup protection blocks */
+ const uint32_t wpsn = stm32x_info->part_info->wps_group_size;
+ assert(bank->num_sectors % wpsn == 0);
+
+ bank->num_prot_blocks = bank->num_sectors / wpsn;
+ assert(bank->num_prot_blocks > 0);
- for (i = 0; i < num_pages; i++) {
- bank->sectors[i].is_erased = -1;
- bank->sectors[i].is_protected = 0;
+ free(bank->prot_blocks);
+
+ bank->prot_blocks = alloc_block_array(0, stm32x_info->part_info->page_size_kb * wpsn * 1024,
+ bank->num_prot_blocks);
+
+ if (!bank->prot_blocks) {
+ LOG_ERROR("failed to allocate bank prot_block");
+ return ERROR_FAIL;
}
- stm32x_info->probed = 1;
+ stm32x_info->probed = true;
return ERROR_OK;
}
}
/* This method must return a string displaying information about the bank */
-static int stm32x_get_info(struct flash_bank *bank, char *buf, int buf_size)
+static int stm32x_get_info(struct flash_bank *bank, struct command_invocation *cmd)
{
struct stm32h7x_flash_bank *stm32x_info = bank->driver_priv;
const struct stm32h7x_part_info *info = stm32x_info->part_info;
if (!stm32x_info->probed) {
int retval = stm32x_probe(bank);
if (retval != ERROR_OK) {
- snprintf(buf, buf_size, "Unable to find bank information.");
+ command_print_sameline(cmd, "Unable to find bank information.");
return retval;
}
}
if (rev_id == info->revs[i].rev)
rev_str = info->revs[i].str;
- if (rev_str != NULL) {
- snprintf(buf, buf_size, "%s - Rev: %s",
+ if (rev_str) {
+ command_print_sameline(cmd, "%s - Rev: %s",
stm32x_info->part_info->device_str, rev_str);
} else {
- snprintf(buf, buf_size,
- "%s - Rev: unknown (0x%04x)",
+ command_print_sameline(cmd,
+ "%s - Rev: unknown (0x%04" PRIx16 ")",
stm32x_info->part_info->device_str, rev_id);
}
} else {
- snprintf(buf, buf_size, "Cannot identify target as a STM32H7x");
- return ERROR_FAIL;
+ command_print_sameline(cmd, "Cannot identify target as a STM32H7x");
+ return ERROR_FAIL;
}
return ERROR_OK;
}
struct flash_bank *bank;
int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
retval = stm32x_set_rdp(bank, OPT_RDP_L1);
struct flash_bank *bank;
int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
retval = stm32x_set_rdp(bank, OPT_RDP_L0);
{
int retval, retval2;
struct target *target = bank->target;
+ struct stm32h7x_flash_bank *stm32x_info = bank->driver_priv;
if (target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
goto flash_lock;
/* mass erase flash memory bank */
- retval = stm32x_write_flash_reg(bank, FLASH_CR, FLASH_BER | FLASH_PSIZE_64);
+ retval = stm32x_write_flash_reg(bank, FLASH_CR,
+ stm32x_info->part_info->compute_flash_cr(FLASH_BER | FLASH_PSIZE_64, 0));
if (retval != ERROR_OK)
goto flash_lock;
- retval = stm32x_write_flash_reg(bank, FLASH_CR, FLASH_BER | FLASH_PSIZE_64 | FLASH_START);
+ retval = stm32x_write_flash_reg(bank, FLASH_CR,
+ stm32x_info->part_info->compute_flash_cr(FLASH_BER | FLASH_PSIZE_64 | FLASH_START, 0));
if (retval != ERROR_OK)
goto flash_lock;
COMMAND_HANDLER(stm32x_handle_mass_erase_command)
{
- int i;
-
- if (CMD_ARGC < 1) {
- command_print(CMD, "stm32h7x mass_erase <bank>");
+ if (CMD_ARGC != 1)
return ERROR_COMMAND_SYNTAX_ERROR;
- }
struct flash_bank *bank;
int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
retval = stm32x_mass_erase(bank);
- if (retval == ERROR_OK) {
- /* set all sectors as erased */
- for (i = 0; i < bank->num_sectors; i++)
- bank->sectors[i].is_erased = 1;
-
+ if (retval == ERROR_OK)
command_print(CMD, "stm32h7x mass erase complete");
- } else {
+ else
command_print(CMD, "stm32h7x mass erase failed");
- }
return retval;
}
COMMAND_HANDLER(stm32x_handle_option_read_command)
{
- if (CMD_ARGC < 2) {
- command_print(CMD, "stm32h7x option_read <bank> <option_reg offset>");
+ if (CMD_ARGC != 2)
return ERROR_COMMAND_SYNTAX_ERROR;
- }
struct flash_bank *bank;
int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
uint32_t reg_offset, value;
COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], reg_offset);
retval = stm32x_read_flash_reg(bank, reg_offset, &value);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
- command_print(CMD, "Option Register: <0x%" PRIx32 "> = 0x%" PRIx32 "",
+ command_print(CMD, "Option Register: <0x%" PRIx32 "> = 0x%" PRIx32,
stm32x_get_flash_reg(bank, reg_offset), value);
return retval;
COMMAND_HANDLER(stm32x_handle_option_write_command)
{
- if (CMD_ARGC < 3) {
- command_print(CMD, "stm32h7x option_write <bank> <option_reg offset> <value> [mask]");
+ if (CMD_ARGC != 3 && CMD_ARGC != 4)
return ERROR_COMMAND_SYNTAX_ERROR;
- }
struct flash_bank *bank;
int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
uint32_t reg_offset, value, mask = 0xffffffff;
COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], reg_offset);
COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], value);
if (CMD_ARGC > 3)
- COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], mask);
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], mask);
return stm32x_modify_option(bank, reg_offset, value, mask);
}
-static const struct command_registration stm32x_exec_command_handlers[] = {
+static const struct command_registration stm32h7x_exec_command_handlers[] = {
{
.name = "lock",
.handler = stm32x_handle_lock_command,
COMMAND_REGISTRATION_DONE
};
-static const struct command_registration stm32x_command_handlers[] = {
+static const struct command_registration stm32h7x_command_handlers[] = {
{
.name = "stm32h7x",
.mode = COMMAND_ANY,
.help = "stm32h7x flash command group",
.usage = "",
- .chain = stm32x_exec_command_handlers,
+ .chain = stm32h7x_exec_command_handlers,
},
COMMAND_REGISTRATION_DONE
};
const struct flash_driver stm32h7x_flash = {
.name = "stm32h7x",
- .commands = stm32x_command_handlers,
+ .commands = stm32h7x_command_handlers,
.flash_bank_command = stm32x_flash_bank_command,
.erase = stm32x_erase,
.protect = stm32x_protect,
Code Review / openocd.git / blobdiff