+// SPDX-License-Identifier: GPL-2.0-or-later
+
/***************************************************************************
* Copyright (C) 2010 by Antonio Borneo <borneo.antonio@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 *
- * (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, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
/* STM Serial Memory Interface (SMI) controller is a SPI bus controller
#endif
#include "imp.h"
+#include "spi.h"
#include <jtag/jtag.h>
#include <helper/time_support.h>
-#define SMI_READ_REG(a) (_SMI_READ_REG(a))
-#define _SMI_READ_REG(a) \
-{ \
- int __a; \
- uint32_t __v; \
- \
- __a = target_read_u32(target, io_base + (a), &__v); \
- if (__a != ERROR_OK) \
- return __a; \
- __v; \
-}
-
-#define SMI_WRITE_REG(a,v) \
-{ \
- int __r; \
- \
- __r = target_write_u32(target, io_base + (a), (v)); \
- if (__r != ERROR_OK) \
- return __r; \
+#define SMI_READ_REG(a) \
+({ \
+ int _ret; \
+ uint32_t _value; \
+ \
+ _ret = target_read_u32(target, io_base + (a), &_value); \
+ if (_ret != ERROR_OK) \
+ return _ret; \
+ _value; \
+})
+
+#define SMI_WRITE_REG(a, v) \
+{ \
+ int _retval; \
+ \
+ _retval = target_write_u32(target, io_base + (a), (v)); \
+ if (_retval != ERROR_OK) \
+ return _retval; \
}
-#define SMI_POLL_TFF(timeout) \
-{ \
- int __r; \
- \
- __r = poll_tff(target, io_base, timeout); \
- if (__r != ERROR_OK) \
- return __r; \
+#define SMI_POLL_TFF(timeout) \
+{ \
+ int _retval; \
+ \
+ _retval = poll_tff(target, io_base, timeout); \
+ if (_retval != ERROR_OK) \
+ return _retval; \
}
#define SMI_SET_SW_MODE() SMI_WRITE_REG(SMI_CR1, \
#define SMI_SEL_BANK3 0x00003000 /* Select Bank3 */
/* fields in SMI_SR */
-#define SMI_WIP_BIT 0x00000001 /* WIP Bit of SPI SR on SMI SR */
-#define SMI_WEL_BIT 0x00000002 /* WEL Bit of SPI SR on SMI SR */
#define SMI_TFF 0x00000100 /* Transfer Finished Flag */
/* Commands */
#define SMI_PROBE_TIMEOUT (100)
#define SMI_MAX_TIMEOUT (3000)
-struct stmsmi_flash_bank
-{
- int probed;
+struct stmsmi_flash_bank {
+ bool probed;
uint32_t io_base;
uint32_t bank_num;
- struct flash_device *dev;
-};
-
-/* data structure to maintain flash ids from different vendors */
-struct flash_device {
- char *name;
- uint8_t erase_cmd;
- uint32_t device_id;
- uint32_t pagesize;
- unsigned long sectorsize;
- unsigned long size_in_bytes;
-};
-
-#define FLASH_ID(n, es, id, psize, ssize, size) \
-{ \
- .name = n, \
- .erase_cmd = es, \
- .device_id = id, \
- .pagesize = psize, \
- .sectorsize = ssize, \
- .size_in_bytes = size \
-}
-
-/* List below is taken from Linux driver. It is not exhaustive of all the
- * possible SPI memories, nor exclusive for SMI. Could be shared with
- * other SPI drivers. */
-static struct flash_device flash_devices[] = {
- /* name, erase_cmd, device_id, pagesize, sectorsize, size_in_bytes */
- FLASH_ID("st m25p05", 0xd8, 0x00102020, 0x80, 0x8000, 0x10000),
- FLASH_ID("st m25p10", 0xd8, 0x00112020, 0x80, 0x8000, 0x20000),
- FLASH_ID("st m25p20", 0xd8, 0x00122020, 0x100, 0x10000, 0x40000),
- FLASH_ID("st m25p40", 0xd8, 0x00132020, 0x100, 0x10000, 0x80000),
- FLASH_ID("st m25p80", 0xd8, 0x00142020, 0x100, 0x10000, 0x100000),
- FLASH_ID("st m25p16", 0xd8, 0x00152020, 0x100, 0x10000, 0x200000),
- FLASH_ID("st m25p32", 0xd8, 0x00162020, 0x100, 0x10000, 0x400000),
- FLASH_ID("st m25p64", 0xd8, 0x00172020, 0x100, 0x10000, 0x800000),
- FLASH_ID("st m25p128", 0xd8, 0x00182020, 0x100, 0x40000, 0x1000000),
- FLASH_ID("st m45pe10", 0xd8, 0x00114020, 0x100, 0x10000, 0x20000),
- FLASH_ID("st m45pe20", 0xd8, 0x00124020, 0x100, 0x10000, 0x40000),
- FLASH_ID("st m45pe40", 0xd8, 0x00134020, 0x100, 0x10000, 0x80000),
- FLASH_ID("st m45pe80", 0xd8, 0x00144020, 0x100, 0x10000, 0x100000),
- FLASH_ID("sp s25fl004", 0xd8, 0x00120201, 0x100, 0x10000, 0x80000),
- FLASH_ID("sp s25fl008", 0xd8, 0x00130201, 0x100, 0x10000, 0x100000),
- FLASH_ID("sp s25fl016", 0xd8, 0x00140201, 0x100, 0x10000, 0x200000),
- FLASH_ID("sp s25fl032", 0xd8, 0x00150201, 0x100, 0x10000, 0x400000),
- FLASH_ID("sp s25fl064", 0xd8, 0x00160201, 0x100, 0x10000, 0x800000),
- FLASH_ID("atmel 25f512", 0x52, 0x0065001f, 0x80, 0x8000, 0x10000),
- FLASH_ID("atmel 25f1024", 0x52, 0x0060001f, 0x100, 0x8000, 0x20000),
- FLASH_ID("atmel 25f2048", 0x52, 0x0063001f, 0x100, 0x10000, 0x40000),
- FLASH_ID("atmel 25f4096", 0x52, 0x0064001f, 0x100, 0x10000, 0x80000),
- FLASH_ID("atmel 25fs040", 0xd7, 0x0004661f, 0x100, 0x10000, 0x80000),
- FLASH_ID("mac 25l512", 0xd8, 0x001020c2, 0x010, 0x10000, 0x10000),
- FLASH_ID("mac 25l1005", 0xd8, 0x001120c2, 0x010, 0x10000, 0x20000),
- FLASH_ID("mac 25l2005", 0xd8, 0x001220c2, 0x010, 0x10000, 0x40000),
- FLASH_ID("mac 25l4005", 0xd8, 0x001320c2, 0x010, 0x10000, 0x80000),
- FLASH_ID("mac 25l8005", 0xd8, 0x001420c2, 0x010, 0x10000, 0x100000),
- FLASH_ID("mac 25l1605", 0xd8, 0x001520c2, 0x100, 0x10000, 0x200000),
- FLASH_ID("mac 25l3205", 0xd8, 0x001620c2, 0x100, 0x10000, 0x400000),
- FLASH_ID("mac 25l6405", 0xd8, 0x001720c2, 0x100, 0x10000, 0x800000),
- FLASH_ID(NULL, 0, 0, 0, 0, 0)
+ const struct flash_device *dev;
};
struct stmsmi_target {
uint32_t io_base;
};
-static struct stmsmi_target target_devices[] = {
+static const struct stmsmi_target target_devices[] = {
/* name, tap_idcode, smi_base, io_base */
{ "SPEAr3xx/6xx", 0x07926041, 0xf8000000, 0xfc000000 },
{ "STR75x", 0x4f1f0041, 0x80000000, 0x90000000 },
{
struct stmsmi_flash_bank *stmsmi_info;
- LOG_DEBUG("%s", __FUNCTION__);
+ LOG_DEBUG("%s", __func__);
if (CMD_ARGC < 6)
- {
- LOG_WARNING("incomplete flash_bank stmsmi configuration");
- return ERROR_FLASH_BANK_INVALID;
- }
+ return ERROR_COMMAND_SYNTAX_ERROR;
stmsmi_info = malloc(sizeof(struct stmsmi_flash_bank));
- if (stmsmi_info == NULL)
- {
+ if (!stmsmi_info) {
LOG_ERROR("not enough memory");
return ERROR_FAIL;
}
bank->driver_priv = stmsmi_info;
- stmsmi_info->probed = 0;
+ stmsmi_info->probed = false;
return ERROR_OK;
}
/* timeout in ms */
static int poll_tff(struct target *target, uint32_t io_base, int timeout)
{
- long long endtime;
+ int64_t endtime;
if (SMI_READ_REG(SMI_SR) & SMI_TFF)
return ERROR_OK;
{
uint32_t status;
int retval;
- long long endtime;
+ int64_t endtime;
- endtime = timeval_ms() + timeout;
- do {
- /* read flash status register */
- retval = read_status_reg(bank, &status);
- if (retval != ERROR_OK)
- return retval;
+ endtime = timeval_ms() + timeout;
+ do {
+ /* read flash status register */
+ retval = read_status_reg(bank, &status);
+ if (retval != ERROR_OK)
+ return retval;
- if ((status & SMI_WIP_BIT) == 0)
+ if ((status & SPIFLASH_BSY_BIT) == 0)
return ERROR_OK;
alive_sleep(1);
- } while (timeval_ms() < endtime);
+ } while (timeval_ms() < endtime);
LOG_ERROR("timeout");
return ERROR_FAIL;
return retval;
/* Check write enabled */
- if ((status & SMI_WEL_BIT) == 0)
- {
+ if ((status & SPIFLASH_WE_BIT) == 0) {
LOG_ERROR("Cannot enable write to flash. Status=0x%08" PRIx32, status);
return ERROR_FAIL;
}
static uint32_t erase_command(struct stmsmi_flash_bank *stmsmi_info,
uint32_t offset)
{
- union {
- uint32_t command;
- uint8_t x[4];
- } cmd;
-
- cmd.x[0] = stmsmi_info->dev->erase_cmd;
- cmd.x[1] = offset >> 16;
- cmd.x[2] = offset >> 8;
- cmd.x[3] = offset;
-
- return cmd.command;
+ uint8_t cmd_bytes[] = {
+ stmsmi_info->dev->erase_cmd,
+ offset >> 16,
+ offset >> 8,
+ offset
+ };
+
+ return le_to_h_u32(cmd_bytes);
}
static int smi_erase_sector(struct flash_bank *bank, int sector)
return ERROR_OK;
}
-static int stmsmi_erase(struct flash_bank *bank, int first, int last)
+static int stmsmi_erase(struct flash_bank *bank, unsigned int first,
+ unsigned int last)
{
struct target *target = bank->target;
struct stmsmi_flash_bank *stmsmi_info = bank->driver_priv;
uint32_t io_base = stmsmi_info->io_base;
int retval = ERROR_OK;
- int sector;
- LOG_DEBUG("%s: from sector %d to sector %d", __FUNCTION__, first, last);
+ LOG_DEBUG("%s: from sector %u to sector %u", __func__, first, last);
- if (target->state != TARGET_HALTED)
- {
+ if (target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
- if ((first < 0) || (last < first) || (last >= bank->num_sectors))
- {
+ if ((last < first) || (last >= bank->num_sectors)) {
LOG_ERROR("Flash sector invalid");
return ERROR_FLASH_SECTOR_INVALID;
}
- if (!(stmsmi_info->probed))
- {
+ if (!(stmsmi_info->probed)) {
LOG_ERROR("Flash bank not probed");
return ERROR_FLASH_BANK_NOT_PROBED;
}
- for (sector = first; sector <= last; sector++)
- {
- if (bank->sectors[sector].is_protected)
- {
- LOG_ERROR("Flash sector %d protected", sector);
+ for (unsigned int sector = first; sector <= last; sector++) {
+ if (bank->sectors[sector].is_protected) {
+ LOG_ERROR("Flash sector %u protected", sector);
return ERROR_FAIL;
}
}
- for (sector = first; sector <= last; sector++)
- {
+ if (stmsmi_info->dev->erase_cmd == 0x00)
+ return ERROR_FLASH_OPER_UNSUPPORTED;
+
+ for (unsigned int sector = first; sector <= last; sector++) {
retval = smi_erase_sector(bank, sector);
if (retval != ERROR_OK)
break;
}
static int stmsmi_protect(struct flash_bank *bank, int set,
- int first, int last)
+ unsigned int first, unsigned int last)
{
- int sector;
-
- for (sector = first; sector <= last; sector++)
+ for (unsigned int sector = first; sector <= last; sector++)
bank->sectors[sector].is_protected = set;
return ERROR_OK;
}
-static int smi_write_buffer(struct flash_bank *bank, uint8_t *buffer,
+static int smi_write_buffer(struct flash_bank *bank, const uint8_t *buffer,
uint32_t address, uint32_t len)
{
struct target *target = bank->target;
int retval;
LOG_DEBUG("%s: address=0x%08" PRIx32 " len=0x%08" PRIx32,
- __FUNCTION__, address, len);
+ __func__, address, len);
retval = smi_write_enable(bank);
if (retval != ERROR_OK)
return ERROR_OK;
}
-static int stmsmi_write(struct flash_bank *bank, uint8_t *buffer,
+static int stmsmi_write(struct flash_bank *bank, const uint8_t *buffer,
uint32_t offset, uint32_t count)
{
struct target *target = bank->target;
struct stmsmi_flash_bank *stmsmi_info = bank->driver_priv;
uint32_t io_base = stmsmi_info->io_base;
uint32_t cur_count, page_size, page_offset;
- int sector;
int retval = ERROR_OK;
LOG_DEBUG("%s: offset=0x%08" PRIx32 " count=0x%08" PRIx32,
- __FUNCTION__, offset, count);
+ __func__, offset, count);
- if (target->state != TARGET_HALTED)
- {
+ if (target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
- if (offset + count > stmsmi_info->dev->size_in_bytes)
- {
+ if (offset + count > stmsmi_info->dev->size_in_bytes) {
LOG_WARNING("Write pasts end of flash. Extra data discarded.");
count = stmsmi_info->dev->size_in_bytes - offset;
}
/* Check sector protection */
- for (sector = 0; sector < bank->num_sectors; sector++)
- {
+ for (unsigned int sector = 0; sector < bank->num_sectors; sector++) {
/* Start offset in or before this sector? */
/* End offset in or behind this sector? */
- if ( (offset <
+ if ((offset <
(bank->sectors[sector].offset + bank->sectors[sector].size))
&& ((offset + count - 1) >= bank->sectors[sector].offset)
- && bank->sectors[sector].is_protected )
- {
- LOG_ERROR("Flash sector %d protected", sector);
+ && bank->sectors[sector].is_protected) {
+ LOG_ERROR("Flash sector %u protected", sector);
return ERROR_FAIL;
}
}
- page_size = stmsmi_info->dev->pagesize;
+ /* if no valid page_size, use reasonable default */
+ page_size = stmsmi_info->dev->pagesize ?
+ stmsmi_info->dev->pagesize : SPIFLASH_DEF_PAGESIZE;
/* unaligned buffer head */
- if (count > 0 && (offset & 3) != 0)
- {
+ if (count > 0 && (offset & 3) != 0) {
cur_count = 4 - (offset & 3);
if (cur_count > count)
cur_count = count;
page_offset = offset % page_size;
/* central part, aligned words */
- while (count >= 4)
- {
+ while (count >= 4) {
/* clip block at page boundary */
if (page_offset + count > page_size)
cur_count = page_size - page_offset;
uint32_t io_base = stmsmi_info->io_base;
int retval;
- if (target->state != TARGET_HALTED)
- {
+ if (target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
{
struct target *target = bank->target;
struct stmsmi_flash_bank *stmsmi_info = bank->driver_priv;
- uint32_t io_base;
+ uint32_t io_base, sectorsize;
struct flash_sector *sectors;
uint32_t id = 0; /* silence uninitialized warning */
- struct stmsmi_target *target_device;
+ const struct stmsmi_target *target_device;
int retval;
if (stmsmi_info->probed)
free(bank->sectors);
- stmsmi_info->probed = 0;
+ stmsmi_info->probed = false;
- for (target_device=target_devices ; target_device->name ; ++target_device)
+ for (target_device = target_devices ; target_device->name ; ++target_device)
if (target_device->tap_idcode == target->tap->idcode)
break;
- if (!target_device->name)
- {
+ if (!target_device->name) {
LOG_ERROR("Device ID 0x%" PRIx32 " is not known as SMI capable",
target->tap->idcode);
return ERROR_FAIL;
}
- switch (bank->base - target_device->smi_base)
- {
+ switch (bank->base - target_device->smi_base) {
case 0:
stmsmi_info->bank_num = SMI_SEL_BANK0;
break;
stmsmi_info->bank_num = SMI_SEL_BANK3;
break;
default:
- LOG_ERROR("Invalid SMI base address 0x%" PRIx32, bank->base);
+ LOG_ERROR("Invalid SMI base address " TARGET_ADDR_FMT, bank->base);
return ERROR_FAIL;
}
io_base = target_device->io_base;
stmsmi_info->io_base = io_base;
- LOG_DEBUG("Valid SMI on device %s at address 0x%" PRIx32,
+ LOG_DEBUG("Valid SMI on device %s at address " TARGET_ADDR_FMT,
target_device->name, bank->base);
/* read and decode flash ID; returns in SW mode */
return retval;
stmsmi_info->dev = NULL;
- for (struct flash_device *p = flash_devices; p->name ; p++)
+ for (const struct flash_device *p = flash_devices; p->name ; p++)
if (p->device_id == id) {
stmsmi_info->dev = p;
break;
}
- if (!stmsmi_info->dev)
- {
+ if (!stmsmi_info->dev) {
LOG_ERROR("Unknown flash device (ID 0x%08" PRIx32 ")", id);
return ERROR_FAIL;
}
/* Set correct size value */
bank->size = stmsmi_info->dev->size_in_bytes;
+ if (bank->size <= (1UL << 16))
+ LOG_WARNING("device needs 2-byte addresses - not implemented");
+ if (bank->size > (1UL << 24))
+ LOG_WARNING("device needs paging or 4-byte addresses - not implemented");
+
+ /* if no sectors, treat whole bank as single sector */
+ sectorsize = stmsmi_info->dev->sectorsize ?
+ stmsmi_info->dev->sectorsize : stmsmi_info->dev->size_in_bytes;
/* create and fill sectors array */
bank->num_sectors =
- stmsmi_info->dev->size_in_bytes / stmsmi_info->dev->sectorsize;
+ stmsmi_info->dev->size_in_bytes / sectorsize;
sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
- if (sectors == NULL)
- {
+ if (!sectors) {
LOG_ERROR("not enough memory");
return ERROR_FAIL;
}
- for (int sector = 0; sector < bank->num_sectors; sector++)
- {
- sectors[sector].offset = sector * stmsmi_info->dev->sectorsize;
- sectors[sector].size = stmsmi_info->dev->sectorsize;
+ for (unsigned int sector = 0; sector < bank->num_sectors; sector++) {
+ sectors[sector].offset = sector * sectorsize;
+ sectors[sector].size = sectorsize;
sectors[sector].is_erased = -1;
sectors[sector].is_protected = 1;
}
bank->sectors = sectors;
- stmsmi_info->probed = 1;
+ stmsmi_info->probed = true;
return ERROR_OK;
}
return ERROR_OK;
}
-static int get_stmsmi_info(struct flash_bank *bank, char *buf, int buf_size)
+static int get_stmsmi_info(struct flash_bank *bank, struct command_invocation *cmd)
{
struct stmsmi_flash_bank *stmsmi_info = bank->driver_priv;
- if (!(stmsmi_info->probed))
- {
- snprintf(buf, buf_size,
- "\nSMI flash bank not probed yet\n");
+ if (!(stmsmi_info->probed)) {
+ command_print_sameline(cmd, "\nSMI flash bank not probed yet\n");
return ERROR_OK;
}
- snprintf(buf, buf_size, "\nSMI flash information:\n"
- " Device \'%s\' (ID 0x%08x)\n",
+ command_print_sameline(cmd, "\nSMI flash information:\n"
+ " Device \'%s\' (ID 0x%08" PRIx32 ")\n",
stmsmi_info->dev->name, stmsmi_info->dev->device_id);
return ERROR_OK;
}
-struct flash_driver stmsmi_flash = {
+const struct flash_driver stmsmi_flash = {
.name = "stmsmi",
.flash_bank_command = stmsmi_flash_bank_command,
.erase = stmsmi_erase,
.erase_check = default_flash_blank_check,
.protect_check = stmsmi_protect_check,
.info = get_stmsmi_info,
+ .free_driver_priv = default_flash_free_driver_priv,
};
projects / fw / openocd / blobdiff