SPI table updates (some new devices and new info)

[openocd.git] / src / flash / nor / stmsmi.c

diff --git a/src/flash/nor/stmsmi.c b/src/flash/nor/stmsmi.c
index 9a715ef947d3ee85876afe5da532f621f4492b36..922561002585f3826f1dc16f9853200211680579 100644 (file)
--- a/src/flash/nor/stmsmi.c
+++ b/src/flash/nor/stmsmi.c
@@ -12,9 +12,7 @@
  *   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.,                                       *
- *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
+ *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  ***************************************************************************/
 
 /* STM Serial Memory Interface (SMI) controller is a SPI bus controller
@@ -120,7 +118,7 @@ struct stmsmi_flash_bank {
        int probed;
        uint32_t io_base;
        uint32_t bank_num;
-       struct flash_device *dev;
+       const struct flash_device *dev;
 };
 
 struct stmsmi_target {
@@ -130,7 +128,7 @@ 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 },
@@ -162,7 +160,7 @@ FLASH_BANK_COMMAND_HANDLER(stmsmi_flash_bank_command)
 /* 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;
@@ -213,7 +211,7 @@ static int wait_till_ready(struct flash_bank *bank, int timeout)
 {
        uint32_t status;
        int retval;
-       long long endtime;
+       int64_t endtime;
 
        endtime = timeval_ms() + timeout;
        do {
@@ -350,6 +348,9 @@ static int stmsmi_erase(struct flash_bank *bank, int first, int last)
                }
        }
 
+       if (stmsmi_info->dev->erase_cmd == 0x00)
+               return ERROR_FLASH_OPER_UNSUPPORTED;
+
        for (sector = first; sector <= last; sector++) {
                retval = smi_erase_sector(bank, sector);
                if (retval != ERROR_OK)
@@ -372,7 +373,7 @@ static int stmsmi_protect(struct flash_bank *bank, int 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;
@@ -397,7 +398,7 @@ static int smi_write_buffer(struct flash_bank *bank, uint8_t *buffer,
        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;
@@ -433,7 +434,9 @@ static int stmsmi_write(struct flash_bank *bank, uint8_t *buffer,
                }
        }
 
-       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) {
@@ -526,10 +529,10 @@ static int stmsmi_probe(struct flash_bank *bank)
 {
        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)
@@ -575,7 +578,7 @@ static int stmsmi_probe(struct flash_bank *bank)
                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;
@@ -591,10 +594,18 @@ static int stmsmi_probe(struct flash_bank *bank)
 
        /* 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) {
                LOG_ERROR("not enough memory");
@@ -602,8 +613,8 @@ static int stmsmi_probe(struct flash_bank *bank)
        }
 
        for (int sector = 0; sector < bank->num_sectors; sector++) {
-               sectors[sector].offset = sector * stmsmi_info->dev->sectorsize;
-               sectors[sector].size = stmsmi_info->dev->sectorsize;
+               sectors[sector].offset = sector * sectorsize;
+               sectors[sector].size = sectorsize;
                sectors[sector].is_erased = -1;
                sectors[sector].is_protected = 1;
        }
@@ -656,4 +667,5 @@ struct flash_driver stmsmi_flash = {
        .erase_check = default_flash_blank_check,
        .protect_check = stmsmi_protect_check,
        .info = get_stmsmi_info,
+       .free_driver_priv = default_flash_free_driver_priv,
 };