***************************************************************************/
/*
- Flash driver for the Nuvoton NuMicro Mini51 series microcontrollers
+ Flash driver for the Nuvoton NuMicro Mini51 and M051 series microcontrollers
Part |APROM Size |Part ID (at 0x5000_0000)
----------------------------------------------
MINI54LAN 16 KB 0x00205400
MINI54ZAN 16 KB 0x00205403
MINI54TAN 16 KB 0x00205404
+ M052LBN 8 KB 0x10005200
+ M054LBN 16 KB 0x10005400
+ M058LBN 32 KB 0x10005800
+ M0516LBN 64 KB 0x10005A00
+ M052ZBN 8 KB 0x10005203
+ M054ZBN 16 KB 0x10005403
+ M058ZBN 32 KB 0x10005803
+ M0516ZBN 64 KB 0x10005A03
+ M052LDN 8 KB 0x20005200
+ M054LDN 16 KB 0x20005400
+ M058LDN 32 KB 0x20005800
+ M0516LDN 64 KB 0x20005A00
+ M052ZDN 8 KB 0x20005203
+ M054ZDN 16 KB 0x20005403
+ M058ZDN 32 KB 0x20005803
+ M0516ZDN 64 KB 0x20005A03
+ M052LDE 8 KB 0x30005200
+ M054LDE 16 KB 0x30005400
+ M058LDE 32 KB 0x30005800
+ M0516LDE 64 KB 0x30005A00
+ M052ZDE 8 KB 0x30005203
+ M054ZDE 16 KB 0x30005403
+ M058ZDE 32 KB 0x30005803
+ M0516ZDE 64 KB 0x30005A03
Datasheet & TRM
---------------
http://www.keil.com/dd/docs/datashts/nuvoton/mini51/da00-mini51_52_54c1.pdf
+ M051 ISP datasheet pages 190-206:
+ http://www.nuvoton.com/hq/resource-download.jsp?tp_GUID=DA05-M052-54-58-516
+
This driver
-----------
- * Only erase and write operations have been implemented;
- * Both operations only support the APROM, not the LDROM;
- * The TRM suggests that after the boot source has been selected, a software reset should be performed by
- setting bit SWRST in ISPCON. However, this doesn't seem to have any effect on the MCU I'm using. At the
- moment, the ARM core is reset using the IPRSTC1 register, which seems to do the trick.
+ * chip_erase, erase, read and write operations have been implemented;
+ * All operations support APROM, LDROM, FLASH DATA and CONFIG;
Flash access limitations
------------------------
- APROM can only be modified when the MCU has booted off the LDROM. For write and erase operations, the
- microcontroller will probably need to be rebooted. Pseudocode:
-
- * If operation is write or erase, check bit BS (1) in ISPCON (0x5000_C000);
- * If BS is 0 (APROM):
- * unlock protected registers by writing 0x59, 0x16, 0x88 to RegLockAddr(0x5000_0100);
- * set BS to 1 (LDROM);
- * reboot by setting bit CPU_RST(1) in IPRSTC1 (0x50000008);
- * poll CPU_RST until it is reset (not sure it's necessary);
- * <Perform flash operation>
- * reboot from APROM using the same procedure but writing 0 to BS
-
-
For implementing the read operation, please note that the APROM isn't memory mapped when booted from LDROM.
*/
#define ISPDAT 0x5000C008
#define ISPCMD 0x5000C00C
#define ISPTRG 0x5000C010
+/* Undocumented isp register */
+#define ISPUNKNOWN 0x5000C01C
-#define PART_ID_MAIN_MASK 0xFFFFFFF8
#define IPRSTC_CPU_RST 0x02
+
+#define ISPCON_ISPFF 0x40
+#define ISPCON_LDUEN 0x20
+#define ISPCON_CFGUEN 0x10
+#define ISPCON_APUEN 0x08
#define ISPCON_BS_LDROM 0x02
#define ISPCON_ISPEN 0x01
-#define ISPCON_SWRST 0x80
-#define ISPCON_ISPFF 0x40
+
+#define ISPCMD_READ 0x00
#define ISPCMD_PROGRAM 0x21
#define ISPCMD_ERASE 0x22
-#define ISPTRG_ISPGO 0x01
+#define ISPCMD_CHIP_ERASE 0x26
-#define MINI51 0x00205100
-#define MINI52 0x00205200
-#define MINI54 0x00205400
+#define ISPTRG_ISPGO 0x01
#define MINI51_APROM_BASE 0x00000000
+#define MINI51_DATA_BASE 0x0001F000
+#define MINI51_LDROM_BASE 0x00100000
+#define MINI51_CONFIG_BASE 0x00300000
+
#define MINI51_KB 1024
#define MINI51_PAGE_SIZE 512
#define MINI51_TIMEOUT 1000
-struct mini51_flash_bank {
- bool probed;
+
+#define ENSURE_OK(status) if (status != ERROR_OK) return status
+
+#define MINI51_MAX_FLASH_BANKS 4
+
+struct mini51_flash_bank_type {
+ uint32_t base;
+ uint32_t size;
};
-enum mini51_boot_source {
- APROM = 0,
- LDROM = 1
+struct mini51_cpu_type {
+ char *name;
+ uint32_t ppid;
+ unsigned n_banks;
+ struct mini51_flash_bank_type bank[MINI51_MAX_FLASH_BANKS];
+};
+
+#define MINI51_BANKS_MINI51(aprom_size) \
+ .n_banks = 3, \
+ { {MINI51_APROM_BASE, (aprom_size)}, {MINI51_LDROM_BASE, 2*1024}, {MINI51_CONFIG_BASE, 512} }
+
+#define MINI51_BANKS_M051(aprom_size) \
+ .n_banks = 4, \
+ { {MINI51_APROM_BASE, (aprom_size)}, {MINI51_DATA_BASE, 4*1024}, {MINI51_LDROM_BASE, 4*1024}, \
+ {MINI51_CONFIG_BASE, 1024} }
+
+static const struct mini51_cpu_type mini51_cpu[] = {
+ { "MINI51LAN", 0x00205100, MINI51_BANKS_MINI51(4*1024) },
+ { "MINI51ZAN", 0x00205103, MINI51_BANKS_MINI51(4*1024) },
+ { "MINI51TAN", 0x00205104, MINI51_BANKS_MINI51(4*1024) },
+ { "MINI52LAN", 0x00205200, MINI51_BANKS_MINI51(8*1024) },
+ { "MINI52ZAN", 0x00205203, MINI51_BANKS_MINI51(8*1024) },
+ { "MINI52TAN", 0x00205204, MINI51_BANKS_MINI51(8*1024) },
+ { "MINI54LAN", 0x00205400, MINI51_BANKS_MINI51(16*1024) },
+ { "MINI54ZAN", 0x00205403, MINI51_BANKS_MINI51(16*1024) },
+ { "MINI54TAN", 0x00205404, MINI51_BANKS_MINI51(16*1024) },
+
+ { "M052LBN", 0x10005200, MINI51_BANKS_M051(8*1024) },
+ { "M054LBN", 0x10005400, MINI51_BANKS_M051(16*1024) },
+ { "M058LBN", 0x10005800, MINI51_BANKS_M051(32*1024) },
+ { "M0516LBN", 0x10005A00, MINI51_BANKS_M051(64*1024) },
+ { "M052ZBN", 0x10005203, MINI51_BANKS_M051(8*1024) },
+ { "M054ZBN", 0x10005403, MINI51_BANKS_M051(16*1024) },
+ { "M058ZBN", 0x10005803, MINI51_BANKS_M051(32*1024) },
+ { "M0516ZBN", 0x10005A03, MINI51_BANKS_M051(64*1024) },
+ { "M052LDN", 0x20005200, MINI51_BANKS_M051(8*1024) },
+ { "M054LDN", 0x20005400, MINI51_BANKS_M051(16*1024) },
+ { "M058LDN", 0x20005800, MINI51_BANKS_M051(32*1024) },
+ { "M0516LDN", 0x20005A00, MINI51_BANKS_M051(64*1024) },
+ { "M052ZDN", 0x20005203, MINI51_BANKS_M051(8*1024) },
+ { "M054ZDN", 0x20005403, MINI51_BANKS_M051(16*1024) },
+ { "M058ZDN", 0x20005803, MINI51_BANKS_M051(32*1024) },
+ { "M0516ZDN", 0x20005A03, MINI51_BANKS_M051(64*1024) },
+ { "M052LDE", 0x30005200, MINI51_BANKS_M051(8*1024) },
+ { "M054LDE", 0x30005400, MINI51_BANKS_M051(16*1024) },
+ { "M058LDE", 0x30005800, MINI51_BANKS_M051(32*1024) },
+ { "M0516LDE", 0x30005A00, MINI51_BANKS_M051(64*1024) },
+ { "M052ZDE", 0x30005203, MINI51_BANKS_M051(8*1024) },
+ { "M054ZDE", 0x30005403, MINI51_BANKS_M051(16*1024) },
+ { "M058ZDE", 0x30005803, MINI51_BANKS_M051(32*1024) },
+ { "M0516ZDE", 0x30005A03, MINI51_BANKS_M051(64*1024) },
+};
+
+struct mini51_flash_bank {
+ bool probed;
+ const struct mini51_cpu_type *cpu;
};
/* Private methods */
-static int mini51_unlock_reg(struct flash_bank *bank)
+static int mini51_unlock_reg(struct target *target)
{
int status;
- struct target *target = bank->target;
-
status = target_write_u32(target, REGLOCKADDR, 0x59);
if (status != ERROR_OK)
return status;
return ERROR_OK;
}
-static int mini51_reboot_with_source(struct flash_bank *bank,
- enum mini51_boot_source new_source,
- enum mini51_boot_source *prev_source)
+
+static int mini51_get_part_id(struct target *target, uint32_t *part_id)
{
- uint32_t ispcon;
- uint32_t isprtc1;
- bool mini51_reboot = false;
- int status;
- int timeout = MINI51_TIMEOUT;
+ int retu = target_read_u32(target, PART_ID_REG, part_id);
+ LOG_INFO("device id = 0x%08" PRIx32 "", *part_id);
+ return retu;
+}
- /* Read current boot source */
- struct target *target = bank->target;
- status = target_read_u32(target, ISPCON, &ispcon);
- if (status != ERROR_OK)
- return status;
+static int mini51_get_cpu_type(struct target *target, const struct mini51_cpu_type** cpu)
+{
+ uint32_t part_id;
+ int status;
- *prev_source = (ispcon >> 1) & 1;
+ status = mini51_get_part_id(target, &part_id);
+ ENSURE_OK(status);
- if ((new_source == APROM) && (*prev_source != APROM)) {
- ispcon &= ~ISPCON_BS_LDROM;
- mini51_reboot = true;
- } else if ((new_source == LDROM) && (*prev_source != LDROM)) {
- ispcon |= ISPCON_BS_LDROM;
- mini51_reboot = true;
+ for (size_t i = 0; i < sizeof(mini51_cpu)/sizeof(mini51_cpu[0]); i++) {
+ if (part_id == mini51_cpu[i].ppid) {
+ *cpu = &mini51_cpu[i];
+ LOG_INFO("device name = %s", (*cpu)->name);
+ return ERROR_OK;
+ }
}
- if (mini51_reboot) {
- mini51_unlock_reg(bank);
- status = target_write_u32(target, ISPCON, ispcon);
- if (status != ERROR_OK)
- return status;
+ return ERROR_FLASH_OPERATION_FAILED;
+}
- status = target_write_u32(target, IPRSTC1, IPRSTC_CPU_RST);
- if (status != ERROR_OK)
- return status;
+static int mini51_get_flash_size(struct flash_bank *bank, const struct mini51_cpu_type *cpu, uint32_t *flash_size)
+{
+ for (size_t i = 0; i < cpu->n_banks; i++) {
+ if (bank->base == cpu->bank[i].base) {
+ *flash_size = cpu->bank[i].size;
+ LOG_INFO("bank base = 0x%08" PRIx32 ", size = 0x%08" PRIx32 "", bank->base, *flash_size);
+ return ERROR_OK;
+ }
+ }
+ return ERROR_FLASH_OPERATION_FAILED;
+}
- do {
- target_read_u32(target, IPRSTC1, &isprtc1);
- timeout--;
- } while ((isprtc1 & IPRSTC_CPU_RST) && timeout > 0);
+static int mini51_isp_execute(struct target *target)
+{
+ int status;
+ uint32_t ispcon;
+ int timeout;
+ uint32_t isptrg;
- if (timeout == 0) {
- LOG_WARNING("Mini51 flash driver: timeout attempting to reboot\n");
- return ERROR_FLASH_OPERATION_FAILED;
- }
+ /* start ISP operation */
+ status = target_write_u32(target, ISPTRG, ISPTRG_ISPGO);
+ ENSURE_OK(status);
+
+ /* Wait for for command to finish executing */
+ timeout = MINI51_TIMEOUT;
+ do {
+ target_read_u32(target, ISPTRG, &isptrg);
+ timeout--;
+ } while ((isptrg & ISPTRG_ISPGO) && (timeout > 0));
+ if (timeout == 0) {
+ LOG_WARNING("Mini51 flash driver: Timeout executing flash command\n");
+ return ERROR_FLASH_OPERATION_FAILED;
}
- return ERROR_OK;
+ /* Check for errors */
+ status = target_read_u32(target, ISPCON, &ispcon);
+ ENSURE_OK(status);
+ if (ispcon & ISPCON_ISPFF) {
+ LOG_WARNING("Mini51 flash driver: operation failed\n");
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+ return status;
}
-static int mini51_get_part_id(struct flash_bank *bank, uint32_t *part_id)
+static int mini51_isp_execute_cmd(struct target *target, uint32_t cmd, uint32_t address, uint32_t data)
{
- return target_read_u32(bank->target, PART_ID_REG, part_id);
+ int status;
+ status = target_write_u32(target, ISPDAT, data);
+ ENSURE_OK(status);
+ status = target_write_u32(target, ISPADR, address);
+ ENSURE_OK(status);
+ status = target_write_u32(target, ISPCMD, cmd);
+ ENSURE_OK(status);
+
+ status = mini51_isp_execute(target);
+ return status;
}
-static int mini51_get_flash_size(struct flash_bank *bank, uint32_t *flash_size)
+static int mini51_isp_execute_cmd_read(struct target *target, uint32_t cmd, uint32_t address, uint32_t *data)
{
- uint32_t part_id;
int status;
+ status = target_write_u32(target, ISPADR, address);
+ ENSURE_OK(status);
+ status = target_write_u32(target, ISPCMD, cmd);
+ ENSURE_OK(status);
- status = mini51_get_part_id(bank, &part_id);
- if (status != ERROR_OK)
- return status;
+ status = mini51_isp_execute(target);
+ ENSURE_OK(status);
+
+ status = target_read_u32(target, ISPDAT, data);
+ ENSURE_OK(status);
- switch (part_id & PART_ID_MAIN_MASK) {
- case MINI51:
- *flash_size = 4 * MINI51_KB;
- break;
- case MINI52:
- *flash_size = 8 * MINI51_KB;
- break;
- case MINI54:
- *flash_size = 16 * MINI51_KB;
- break;
- default:
- *flash_size = 0;
- break;
+ return status;
+}
+
+static int mini51_isp_enable(struct target *target)
+{
+ int status;
+ uint32_t ispcon;
+
+ if (target->state != TARGET_HALTED) {
+ LOG_ERROR("Target not halted");
+ return ERROR_TARGET_NOT_HALTED;
}
- return ERROR_OK;
+ status = mini51_unlock_reg(target);
+ ENSURE_OK(status);
+ status = target_read_u32(target, ISPCON, &ispcon);
+ ENSURE_OK(status);
+ ispcon |= ISPCON_ISPEN | ISPCON_LDUEN | ISPCON_APUEN | ISPCON_CFGUEN;
+ status = target_write_u32(target, ISPCON, ispcon);
+ return status;
}
/* Public (API) methods */
return ERROR_FLASH_OPERATION_FAILED;
}
-static int mini51_erase(struct flash_bank *bank, int first, int last)
+static int mini51_read(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
{
int status;
- int timeout;
- uint32_t ispcon;
- uint32_t isptrg;
- enum mini51_boot_source new_source;
- enum mini51_boot_source prev_source;
+ uint32_t ispdat;
struct target *target = bank->target;
- if (target->state != TARGET_HALTED) {
- LOG_ERROR("Target not halted");
- return ERROR_TARGET_NOT_HALTED;
+ if ((offset & 0x3) || (count & 0x3)) {
+ LOG_WARNING("Mini51 flash driver: unaligned access not supported\n");
+ return ERROR_FLASH_OPERATION_FAILED;
}
- /* TODO: add support for erasing the LDROM */
- new_source = LDROM;
- status = mini51_reboot_with_source(bank, new_source, &prev_source);
- if (status != ERROR_OK)
- return status;
+ status = mini51_isp_enable(target);
+ ENSURE_OK(status);
+
+ for (uint32_t i = offset; i < offset + count; i += 4) {
+ status = mini51_isp_execute_cmd_read(target, ISPCMD_READ, bank->base + i, &ispdat);
+ memcpy(buffer, &ispdat, sizeof(ispdat));
+ ENSURE_OK(status);
+ buffer += sizeof(ispdat);
+ }
+
+ return ERROR_OK;
+}
+
+
+static int mini51_erase(struct flash_bank *bank, int first, int last)
+{
+ int status;
+ struct target *target = bank->target;
/* Enable ISP */
- status = target_read_u32(target, ISPCON, &ispcon);
- if (status != ERROR_OK)
- return status;
- ispcon |= ISPCON_ISPEN;
- status = target_write_u32(target, ISPCON, ispcon);
+ status = mini51_isp_enable(target);
+ ENSURE_OK(status);
for (int page_start = first; page_start <= last; page_start++) {
/* Set up erase command */
- status = target_write_u32(target, ISPADR, page_start*MINI51_PAGE_SIZE);
- if (status != ERROR_OK)
- return status;
- status = target_write_u32(target, ISPCMD, ISPCMD_ERASE);
- if (status != ERROR_OK)
- return status;
-
- /* Erase the selected page */
- status = target_write_u32(target, ISPTRG, ISPTRG_ISPGO);
- if (status != ERROR_OK)
- return status;
-
- /* Wait for for command to finish executing */
- timeout = MINI51_TIMEOUT;
- do {
- target_read_u32(target, ISPTRG, &isptrg);
- timeout--;
- } while ((isptrg & ISPTRG_ISPGO) && (timeout > 0));
- if (timeout == 0) {
- LOG_WARNING("Mini51 flash driver: Timeout erasing flash\n");
- return ERROR_FLASH_OPERATION_FAILED;
- }
-
- /* Check for errors */
- status = target_read_u32(target, ISPCON, &ispcon);
- if (status != ERROR_OK)
- return status;
- if (ispcon & ISPCON_ISPFF) {
- LOG_WARNING("Mini51 flash driver: Erase operation failed\n");
- return ERROR_FLASH_OPERATION_FAILED;
- }
- }
-
- /* Reboot from previous source */
- if (prev_source != new_source) {
- status = mini51_reboot_with_source(bank, prev_source, &new_source);
- if (status != ERROR_OK)
- return status;
+ uint32_t address = bank->base + page_start*MINI51_PAGE_SIZE;
+ status = mini51_isp_execute_cmd(target, ISPCMD_ERASE, address, 0);
+ ENSURE_OK(status);
}
return ERROR_OK;
static int mini51_write(struct flash_bank *bank, const uint8_t *buffer, uint32_t offset, uint32_t count)
{
int status;
- int timeout;
- uint32_t ispcon;
- uint32_t isptrg;
uint32_t ispdat;
- enum mini51_boot_source new_source;
- enum mini51_boot_source prev_source;
struct target *target = bank->target;
- if (target->state != TARGET_HALTED) {
- LOG_ERROR("Target not halted");
- return ERROR_TARGET_NOT_HALTED;
- }
-
if ((offset & 0x3) || (count & 0x3)) {
LOG_WARNING("Mini51 flash driver: unaligned access not supported\n");
return ERROR_FLASH_OPERATION_FAILED;
}
- /* TODO: add support for writing to LDROM */
- new_source = LDROM;
- status = mini51_reboot_with_source(bank, new_source, &prev_source);
- if (status != ERROR_OK)
- return status;
-
- /* Enable ISP */
- status = target_read_u32(target, ISPCON, &ispcon);
- if (status != ERROR_OK)
- return status;
- ispcon |= ISPCON_ISPEN;
- status = target_write_u32(target, ISPCON, ispcon);
+ status = mini51_isp_enable(target);
+ ENSURE_OK(status);
for (uint32_t i = offset; i < offset + count; i += 4) {
- /* Set up program command */
- status = target_write_u32(target, ISPADR, i);
- if (status != ERROR_OK)
- return status;
- status = target_write_u32(target, ISPCMD, ISPCMD_PROGRAM);
- if (status != ERROR_OK)
- return status;
memcpy(&ispdat, buffer, sizeof(ispdat));
+ status = mini51_isp_execute_cmd(target, ISPCMD_PROGRAM, bank->base + i, ispdat);
+ ENSURE_OK(status);
buffer += sizeof(ispdat);
- status = target_write_u32(target, ISPDAT, ispdat);
- if (status != ERROR_OK)
- return status;
-
- /* Write the selected word */
- status = target_write_u32(target, ISPTRG, ISPTRG_ISPGO);
- if (status != ERROR_OK)
- return status;
-
- /* Wait for for command to finish executing */
- timeout = MINI51_TIMEOUT;
- do {
- target_read_u32(target, ISPTRG, &isptrg);
- timeout--;
- } while ((isptrg & ISPTRG_ISPGO) && (timeout > 0));
- if (timeout == 0) {
- LOG_WARNING("Mini51 flash driver: Timeout programming flash\n");
- return ERROR_FLASH_OPERATION_FAILED;
- }
-
- /* Check for errors */
- status = target_read_u32(target, ISPCON, &ispcon);
- if (status != ERROR_OK)
- return status;
- if (ispcon & ISPCON_ISPFF) {
- LOG_WARNING("Mini51 flash driver: Programming operation failed\n");
- return ERROR_FLASH_OPERATION_FAILED;
- }
- }
-
- if (prev_source != new_source) {
- status = mini51_reboot_with_source(bank, prev_source, &new_source);
- if (status != ERROR_OK)
- return status;
}
return ERROR_OK;
static int mini51_probe(struct flash_bank *bank)
{
uint32_t flash_size;
- int retval;
+ int status;
int num_pages;
uint32_t offset = 0;
+ const struct mini51_cpu_type *cpu;
+ struct target *target = bank->target;
- retval = mini51_get_flash_size(bank, &flash_size);
- if (retval != ERROR_OK || flash_size == 0) {
+ status = mini51_get_cpu_type(target, &cpu);
+ if (status != ERROR_OK) {
LOG_WARNING("Mini51 flash driver: Failed to detect a known part\n");
return ERROR_FLASH_OPERATION_FAILED;
}
+ status = mini51_get_flash_size(bank, cpu, &flash_size);
+ if (status != ERROR_OK) {
+ LOG_WARNING("Mini51 flash driver: Failed to detect flash size\n");
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+
num_pages = flash_size / MINI51_PAGE_SIZE;
- bank->base = MINI51_APROM_BASE;
bank->num_sectors = num_pages;
bank->sectors = malloc(sizeof(struct flash_sector) * num_pages);
bank->size = flash_size;
struct mini51_flash_bank *mini51_info = bank->driver_priv;
mini51_info->probed = true;
+ mini51_info->cpu = cpu;
return ERROR_OK;
}
return mini51_probe(bank);
}
+COMMAND_HANDLER(mini51_handle_read_isp_command)
+{
+ uint32_t address;
+ uint32_t ispdat;
+ int status;
+
+ if (CMD_ARGC != 1)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
+
+ struct target *target = get_current_target(CMD_CTX);
+
+ status = mini51_isp_enable(target);
+ ENSURE_OK(status);
+ status = mini51_isp_execute_cmd_read(target, ISPCMD_READ, address, &ispdat);
+ ENSURE_OK(status);
+ LOG_INFO("0x%08" PRIx32 ": 0x%08" PRIx32, address, ispdat);
+ return ERROR_OK;
+}
+
+COMMAND_HANDLER(mini51_handle_write_isp_command)
+{
+ uint32_t address;
+ uint32_t ispdat;
+ int status;
+
+ if (CMD_ARGC != 2)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], ispdat);
+
+ struct target *target = get_current_target(CMD_CTX);
+
+ status = mini51_isp_enable(target);
+ ENSURE_OK(status);
+ status = mini51_isp_execute_cmd(target, ISPCMD_PROGRAM, address, ispdat);
+ ENSURE_OK(status);
+ LOG_INFO("0x%08" PRIx32 ": 0x%08" PRIx32, address, ispdat);
+ return ERROR_OK;
+}
+
+COMMAND_HANDLER(mini51_handle_chip_erase_command)
+{
+ int status;
+ if (CMD_ARGC != 0)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ struct target *target = get_current_target(CMD_CTX);
+
+ status = mini51_isp_enable(target);
+ ENSURE_OK(status);
+ /* Write one to undocumented flash control register */
+ status = target_write_u32(target, ISPUNKNOWN, 1);
+ ENSURE_OK(status);
+
+ status = mini51_isp_execute_cmd(target, ISPCMD_CHIP_ERASE, 0, 0);
+ ENSURE_OK(status);
+ return ERROR_OK;
+}
+
+static const struct command_registration mini51_exec_command_handlers[] = {
+ {
+ .name = "read_isp",
+ .handler = mini51_handle_read_isp_command,
+ .usage = "address",
+ .mode = COMMAND_EXEC,
+ .help = "read flash through ISP.",
+ },
+ {
+ .name = "write_isp",
+ .handler = mini51_handle_write_isp_command,
+ .usage = "address value",
+ .mode = COMMAND_EXEC,
+ .help = "write flash through ISP.",
+ },
+ {
+ .name = "chip_erase",
+ .handler = mini51_handle_chip_erase_command,
+ .mode = COMMAND_EXEC,
+ .help = "chip erase.",
+ },
+ COMMAND_REGISTRATION_DONE
+};
+
+static const struct command_registration mini51_command_handlers[] = {
+ {
+ .name = "mini51",
+ .mode = COMMAND_ANY,
+ .help = "mini51 flash command group",
+ .usage = "",
+ .chain = mini51_exec_command_handlers,
+ },
+ COMMAND_REGISTRATION_DONE
+};
+
struct flash_driver mini51_flash = {
.name = "mini51",
+ .commands = mini51_command_handlers,
.flash_bank_command = mini51_flash_bank_command,
.erase = mini51_erase,
.protect = mini51_protect,
.write = mini51_write,
- .read = default_flash_read,
+ .read = mini51_read,
.probe = mini51_probe,
.auto_probe = mini51_auto_probe,
.erase_check = default_flash_blank_check,
projects / openocd / commitdiff