]> git.sur5r.net Git - openocd/blobdiff - src/flash/mflash.c
Remove FSF address from GPL notices
[openocd] / src / flash / mflash.c
index 8f42aa6e5fe038a3ffdffa3b19b56039c998a17d..b6999554279114c6967e971f99568fa86218e6eb 100644 (file)
@@ -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.,                                       *
- *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  ***************************************************************************/
 
 #ifdef HAVE_CONFIG_H
 #endif
 
 #include "mflash.h"
-#include "target.h"
-#include "time_support.h"
-#include "fileio.h"
-#include "log.h"
+#include <target/target.h>
+#include <helper/time_support.h>
+#include <helper/fileio.h>
+#include <helper/log.h>
 
-
-static int s3c2440_set_gpio_to_output (struct mflash_gpio_num gpio);
-static int s3c2440_set_gpio_output_val (struct mflash_gpio_num gpio, uint8_t val);
-static int pxa270_set_gpio_to_output (struct mflash_gpio_num gpio);
-static int pxa270_set_gpio_output_val (struct mflash_gpio_num gpio, uint8_t val);
+static int s3c2440_set_gpio_to_output(struct mflash_gpio_num gpio);
+static int s3c2440_set_gpio_output_val(struct mflash_gpio_num gpio, uint8_t val);
+static int pxa270_set_gpio_to_output(struct mflash_gpio_num gpio);
+static int pxa270_set_gpio_output_val(struct mflash_gpio_num gpio, uint8_t val);
 
 static struct mflash_bank *mflash_bank;
 
@@ -47,11 +44,10 @@ static struct mflash_gpio_drv s3c2440_gpio = {
        .set_gpio_output_val = s3c2440_set_gpio_output_val
 };
 
-static struct mflash_gpio_drv *mflash_gpio[] =
-{
-               &pxa270_gpio,
-               &s3c2440_gpio,
-               NULL
+static struct mflash_gpio_drv *mflash_gpio[] = {
+       &pxa270_gpio,
+       &s3c2440_gpio,
+       NULL
 };
 
 #define PXA270_GAFR0_L 0x40E00054
@@ -63,7 +59,7 @@ static struct mflash_gpio_drv *mflash_gpio[] =
 #define PXA270_GPSR0 0x40E00018
 #define PXA270_GPCR0 0x40E00024
 
-static int pxa270_set_gpio_to_output (struct mflash_gpio_num gpio)
+static int pxa270_set_gpio_to_output(struct mflash_gpio_num gpio)
 {
        uint32_t addr, value, mask;
        struct target *target = mflash_bank->target;
@@ -74,14 +70,16 @@ static int pxa270_set_gpio_to_output (struct mflash_gpio_num gpio)
 
        addr = PXA270_GAFR0_L + (gpio.num >> 4) * 4;
 
-       if ((ret = target_read_u32(target, addr, &value)) != ERROR_OK)
+       ret = target_read_u32(target, addr, &value);
+       if (ret != ERROR_OK)
                return ret;
 
        value &= ~mask;
        if (addr == PXA270_GAFR3_U)
                value &= ~PXA270_GAFR3_U_RESERVED_BITS;
 
-       if ((ret = target_write_u32(target, addr, value)) != ERROR_OK)
+       ret = target_write_u32(target, addr, value);
+       if (ret != ERROR_OK)
                return ret;
 
        /* set direction to output */
@@ -89,7 +87,8 @@ static int pxa270_set_gpio_to_output (struct mflash_gpio_num gpio)
 
        addr = PXA270_GPDR0 + (gpio.num >> 5) * 4;
 
-       if ((ret = target_read_u32(target, addr, &value)) != ERROR_OK)
+       ret = target_read_u32(target, addr, &value);
+       if (ret != ERROR_OK)
                return ret;
 
        value |= mask;
@@ -100,7 +99,7 @@ static int pxa270_set_gpio_to_output (struct mflash_gpio_num gpio)
        return ret;
 }
 
-static int pxa270_set_gpio_output_val (struct mflash_gpio_num gpio, uint8_t val)
+static int pxa270_set_gpio_output_val(struct mflash_gpio_num gpio, uint8_t val)
 {
        uint32_t addr, value, mask;
        struct target *target = mflash_bank->target;
@@ -108,13 +107,13 @@ static int pxa270_set_gpio_output_val (struct mflash_gpio_num gpio, uint8_t val)
 
        mask = 0x1u << (gpio.num & 0x1F);
 
-       if (val) {
+       if (val)
                addr = PXA270_GPSR0 + (gpio.num >> 5) * 4;
-       } else {
+       else
                addr = PXA270_GPCR0 + (gpio.num >> 5) * 4;
-       }
 
-       if ((ret = target_read_u32(target, addr, &value)) != ERROR_OK)
+       ret = target_read_u32(target, addr, &value);
+       if (ret != ERROR_OK)
                return ret;
 
        value |= mask;
@@ -129,19 +128,19 @@ static int pxa270_set_gpio_output_val (struct mflash_gpio_num gpio, uint8_t val)
 #define S3C2440_GPJCON 0x560000d0
 #define S3C2440_GPJDAT 0x560000d4
 
-static int s3c2440_set_gpio_to_output (struct mflash_gpio_num gpio)
+static int s3c2440_set_gpio_to_output(struct mflash_gpio_num gpio)
 {
        uint32_t data, mask, gpio_con;
        struct target *target = mflash_bank->target;
        int ret;
 
-       if (gpio.port[0] >= 'a' && gpio.port[0] <= 'h') {
+       if (gpio.port[0] >= 'a' && gpio.port[0] <= 'h')
                gpio_con = S3C2440_GPACON + (gpio.port[0] - 'a') * 0x10;
-       } else if (gpio.port[0] == 'j') {
+       else if (gpio.port[0] == 'j')
                gpio_con = S3C2440_GPJCON;
-       else {
+       else {
                LOG_ERROR("mflash: invalid port %d%s", gpio.num, gpio.port);
-               return ERROR_INVALID_ARGUMENTS;
+               return ERROR_COMMAND_SYNTAX_ERROR;
        }
 
        ret = target_read_u32(target, gpio_con, &data);
@@ -161,19 +160,19 @@ static int s3c2440_set_gpio_to_output (struct mflash_gpio_num gpio)
        return ret;
 }
 
-static int s3c2440_set_gpio_output_val (struct mflash_gpio_num gpio, uint8_t val)
+static int s3c2440_set_gpio_output_val(struct mflash_gpio_num gpio, uint8_t val)
 {
        uint32_t data, mask, gpio_dat;
        struct target *target = mflash_bank->target;
        int ret;
 
-       if (gpio.port[0] >= 'a' && gpio.port[0] <= 'h') {
+       if (gpio.port[0] >= 'a' && gpio.port[0] <= 'h')
                gpio_dat = S3C2440_GPADAT + (gpio.port[0] - 'a') * 0x10;
-       } else if (gpio.port[0] == 'j') {
+       else if (gpio.port[0] == 'j')
                gpio_dat = S3C2440_GPJDAT;
-       else {
+       else {
                LOG_ERROR("mflash: invalid port %d%s", gpio.num, gpio.port);
-               return ERROR_INVALID_ARGUMENTS;
+               return ERROR_COMMAND_SYNTAX_ERROR;
        }
 
        ret = target_read_u32(target, gpio_dat, &data);
@@ -195,7 +194,7 @@ static int mg_hdrst(uint8_t level)
        return mflash_bank->gpio_drv->set_gpio_output_val(mflash_bank->rst_pin, level);
 }
 
-static int mg_init_gpio (void)
+static int mg_init_gpio(void)
 {
        int ret;
        struct mflash_gpio_drv *gpio_drv = mflash_bank->gpio_drv;
@@ -209,7 +208,7 @@ static int mg_init_gpio (void)
        return ret;
 }
 
-static int mg_dsk_wait(mg_io_type_wait wait, uint32_t time)
+static int mg_dsk_wait(mg_io_type_wait wait_local, uint32_t time_var)
 {
        uint8_t status, error;
        struct target *target = mflash_bank->target;
@@ -220,19 +219,17 @@ static int mg_dsk_wait(mg_io_type_wait wait, uint32_t time)
        struct duration bench;
        duration_start(&bench);
 
-       while (time) {
+       while (time_var) {
 
                ret = target_read_u8(target, mg_task_reg + MG_REG_STATUS, &status);
                if (ret != ERROR_OK)
                        return ret;
 
-               if (status & mg_io_rbit_status_busy)
-               {
-                       if (wait == mg_io_wait_bsy)
+               if (status & mg_io_rbit_status_busy) {
+                       if (wait_local == mg_io_wait_bsy)
                                return ERROR_OK;
                } else {
-                       switch (wait)
-                       {
+                       switch (wait_local) {
                                case mg_io_wait_not_bsy:
                                        return ERROR_OK;
                                case mg_io_wait_rdy_noerr:
@@ -248,8 +245,7 @@ static int mg_dsk_wait(mg_io_type_wait wait, uint32_t time)
                        }
 
                        /* Now we check the error condition! */
-                       if (status & mg_io_rbit_status_error)
-                       {
+                       if (status & mg_io_rbit_status_error) {
                                ret = target_read_u8(target, mg_task_reg + MG_REG_ERROR, &error);
                                if (ret != ERROR_OK)
                                        return ret;
@@ -259,8 +255,7 @@ static int mg_dsk_wait(mg_io_type_wait wait, uint32_t time)
                                return ERROR_MG_IO;
                        }
 
-                       switch (wait)
-                       {
+                       switch (wait_local) {
                                case mg_io_wait_rdy:
                                        if (status & mg_io_rbit_status_ready)
                                                return ERROR_OK;
@@ -280,7 +275,7 @@ static int mg_dsk_wait(mg_io_type_wait wait, uint32_t time)
                else
                        LOG_ERROR("mflash: duration measurement failed: %d", ret);
 
-               if (t > time)
+               if (t > time_var)
                        break;
        }
 
@@ -295,14 +290,14 @@ static int mg_dsk_srst(uint8_t on)
        uint8_t value;
        int ret;
 
-       if ((ret = target_read_u8(target, mg_task_reg + MG_REG_DRV_CTRL, &value)) != ERROR_OK)
+       ret = target_read_u8(target, mg_task_reg + MG_REG_DRV_CTRL, &value);
+       if (ret != ERROR_OK)
                return ret;
 
-       if (on) {
+       if (on)
                value |= (mg_io_rbit_devc_srst);
-       } else {
+       else
                value &= ~mg_io_rbit_devc_srst;
-       }
 
        ret = target_write_u8(target, mg_task_reg + MG_REG_DRV_CTRL, value);
        return ret;
@@ -319,7 +314,7 @@ static int mg_dsk_io_cmd(uint32_t sect_num, uint32_t cnt, uint8_t cmd)
        if (ret != ERROR_OK)
                return ret;
 
-       value = mg_io_rval_dev_drv_master | mg_io_rval_dev_lba_mode |((sect_num >> 24) & 0xf);
+       value = mg_io_rval_dev_drv_master | mg_io_rval_dev_lba_mode | ((sect_num >> 24) & 0xf);
 
        ret = target_write_u8(target, mg_task_reg + MG_REG_DRV_HEAD, value);
        ret |= target_write_u8(target, mg_task_reg + MG_REG_SECT_CNT, (uint8_t)cnt);
@@ -339,57 +334,72 @@ static int mg_dsk_drv_info(void)
        uint32_t mg_buff = mflash_bank->base + MG_BUFFER_OFFSET;
        int ret;
 
-       if ((ret =  mg_dsk_io_cmd(0, 1, mg_io_cmd_identify)) != ERROR_OK)
+       ret = mg_dsk_io_cmd(0, 1, mg_io_cmd_identify);
+       if (ret != ERROR_OK)
                return ret;
 
-       if ((ret = mg_dsk_wait(mg_io_wait_drq, MG_OEM_DISK_WAIT_TIME_NORMAL)) != ERROR_OK)
+       ret = mg_dsk_wait(mg_io_wait_drq, MG_OEM_DISK_WAIT_TIME_NORMAL);
+       if (ret != ERROR_OK)
                return ret;
 
        LOG_INFO("mflash: read drive info");
 
-       if (! mflash_bank->drv_info)
+       if (!mflash_bank->drv_info)
                mflash_bank->drv_info = malloc(sizeof(struct mg_drv_info));
 
-       target_read_memory(target, mg_buff, 2, sizeof(mg_io_type_drv_info) >> 1,
+       ret = target_read_memory(target, mg_buff, 2,
+                       sizeof(mg_io_type_drv_info) >> 1,
                        (uint8_t *)&mflash_bank->drv_info->drv_id);
        if (ret != ERROR_OK)
                return ret;
 
-       mflash_bank->drv_info->tot_sects = (uint32_t)(mflash_bank->drv_info->drv_id.total_user_addressable_sectors_hi << 16)
-                                                                       + mflash_bank->drv_info->drv_id.total_user_addressable_sectors_lo;
+       mflash_bank->drv_info->tot_sects =
+               (uint32_t)(mflash_bank->drv_info->drv_id.total_user_addressable_sectors_hi << 16)
+               + mflash_bank->drv_info->drv_id.total_user_addressable_sectors_lo;
 
-       return target_write_u8(target, mflash_bank->base + MG_REG_OFFSET + MG_REG_COMMAND, mg_io_cmd_confirm_read);
+       return target_write_u8(target,
+               mflash_bank->base + MG_REG_OFFSET + MG_REG_COMMAND,
+               mg_io_cmd_confirm_read);
 }
 
 static int mg_mflash_rst(void)
 {
        int ret;
 
-       if ((ret = mg_init_gpio()) != ERROR_OK)
+       ret = mg_init_gpio();
+       if (ret != ERROR_OK)
                return ret;
 
-       if ((ret = mg_hdrst(0)) != ERROR_OK)
+       ret = mg_hdrst(0);
+       if (ret != ERROR_OK)
                return ret;
 
-       if ((ret = mg_dsk_wait(mg_io_wait_bsy, MG_OEM_DISK_WAIT_TIME_LONG)) != ERROR_OK)
+       ret = mg_dsk_wait(mg_io_wait_bsy, MG_OEM_DISK_WAIT_TIME_LONG);
+       if (ret != ERROR_OK)
                return ret;
 
-       if ((ret = mg_hdrst(1)) != ERROR_OK)
+       ret = mg_hdrst(1);
+       if (ret != ERROR_OK)
                return ret;
 
-       if ((ret = mg_dsk_wait(mg_io_wait_not_bsy, MG_OEM_DISK_WAIT_TIME_LONG)) != ERROR_OK)
+       ret = mg_dsk_wait(mg_io_wait_not_bsy, MG_OEM_DISK_WAIT_TIME_LONG);
+       if (ret != ERROR_OK)
                return ret;
 
-       if ((ret = mg_dsk_srst(1)) != ERROR_OK)
+       ret = mg_dsk_srst(1);
+       if (ret != ERROR_OK)
                return ret;
 
-       if ((ret = mg_dsk_wait(mg_io_wait_bsy, MG_OEM_DISK_WAIT_TIME_LONG)) != ERROR_OK)
+       ret = mg_dsk_wait(mg_io_wait_bsy, MG_OEM_DISK_WAIT_TIME_LONG);
+       if (ret != ERROR_OK)
                return ret;
 
-       if ((ret = mg_dsk_srst(0)) != ERROR_OK)
+       ret = mg_dsk_srst(0);
+       if (ret != ERROR_OK)
                return ret;
 
-       if ((ret = mg_dsk_wait(mg_io_wait_not_bsy, MG_OEM_DISK_WAIT_TIME_LONG)) != ERROR_OK)
+       ret = mg_dsk_wait(mg_io_wait_not_bsy, MG_OEM_DISK_WAIT_TIME_LONG);
+       if (ret != ERROR_OK)
                return ret;
 
        LOG_INFO("mflash: reset ok");
@@ -399,9 +409,8 @@ static int mg_mflash_rst(void)
 
 static int mg_mflash_probe(void)
 {
-       int ret;
-
-       if ((ret = mg_mflash_rst()) != ERROR_OK)
+       int ret = mg_mflash_rst();
+       if (ret != ERROR_OK)
                return ret;
 
        return mg_dsk_drv_info();
@@ -414,8 +423,10 @@ COMMAND_HANDLER(mg_probe_cmd)
        ret = mg_mflash_probe();
 
        if (ret == ERROR_OK) {
-               command_print(CMD_CTX, "mflash (total %" PRIu32 " sectors) found at 0x%8.8" PRIx32 "",
-                               mflash_bank->drv_info->tot_sects, mflash_bank->base);
+               command_print(CMD_CTX,
+                       "mflash (total %" PRIu32 " sectors) found at 0x%8.8" PRIx32 "",
+                       mflash_bank->drv_info->tot_sects,
+                       mflash_bank->base);
        }
 
        return ret;
@@ -428,7 +439,8 @@ static int mg_mflash_do_read_sects(void *buff, uint32_t sect_num, uint32_t sect_
        struct target *target = mflash_bank->target;
        uint8_t *buff_ptr = buff;
 
-       if ((ret = mg_dsk_io_cmd(sect_num, sect_cnt, mg_io_cmd_read)) != ERROR_OK)
+       ret = mg_dsk_io_cmd(sect_num, sect_cnt, mg_io_cmd_read);
+       if (ret != ERROR_OK)
                return ret;
 
        address = mflash_bank->base + MG_BUFFER_OFFSET;
@@ -447,11 +459,14 @@ static int mg_mflash_do_read_sects(void *buff, uint32_t sect_num, uint32_t sect_
 
                buff_ptr += MG_MFLASH_SECTOR_SIZE;
 
-               ret = target_write_u8(target, mflash_bank->base + MG_REG_OFFSET + MG_REG_COMMAND, mg_io_cmd_confirm_read);
+               ret = target_write_u8(target,
+                               mflash_bank->base + MG_REG_OFFSET + MG_REG_COMMAND,
+                               mg_io_cmd_confirm_read);
                if (ret != ERROR_OK)
                        return ret;
 
-               LOG_DEBUG("mflash: %" PRIu32 " (0x%8.8" PRIx32 ") sector read", sect_num + i, (sect_num + i) * MG_MFLASH_SECTOR_SIZE);
+               LOG_DEBUG("mflash: %" PRIu32 " (0x%8.8" PRIx32 ") sector read", sect_num + i,
+                       (sect_num + i) * MG_MFLASH_SECTOR_SIZE);
 
                ret = duration_measure(&bench);
                if ((ERROR_OK == ret) && (duration_elapsed(&bench) > 3)) {
@@ -474,7 +489,7 @@ static int mg_mflash_read_sects(void *buff, uint32_t sect_num, uint32_t sect_cnt
 
        for (i = 0; i < quotient; i++) {
                LOG_DEBUG("mflash: sect num : %" PRIu32 " buff : %p",
-                               sect_num, buff_ptr);
+                       sect_num, buff_ptr);
                ret = mg_mflash_do_read_sects(buff_ptr, sect_num, 256);
                if (ret != ERROR_OK)
                        return ret;
@@ -485,7 +500,7 @@ static int mg_mflash_read_sects(void *buff, uint32_t sect_num, uint32_t sect_cnt
 
        if (residue) {
                LOG_DEBUG("mflash: sect num : %" PRIx32 " buff : %p",
-                               sect_num, buff_ptr);
+                       sect_num, buff_ptr);
                return mg_mflash_do_read_sects(buff_ptr, sect_num, residue);
        }
 
@@ -493,14 +508,15 @@ static int mg_mflash_read_sects(void *buff, uint32_t sect_num, uint32_t sect_cnt
 }
 
 static int mg_mflash_do_write_sects(void *buff, uint32_t sect_num, uint32_t sect_cnt,
-               mg_io_type_cmd cmd)
+       uint8_t cmd)
 {
        uint32_t i, address;
        int ret;
        struct target *target = mflash_bank->target;
        uint8_t *buff_ptr = buff;
 
-       if ((ret = mg_dsk_io_cmd(sect_num, sect_cnt, cmd)) != ERROR_OK)
+       ret = mg_dsk_io_cmd(sect_num, sect_cnt, cmd);
+       if (ret != ERROR_OK)
                return ret;
 
        address = mflash_bank->base + MG_BUFFER_OFFSET;
@@ -519,11 +535,14 @@ static int mg_mflash_do_write_sects(void *buff, uint32_t sect_num, uint32_t sect
 
                buff_ptr += MG_MFLASH_SECTOR_SIZE;
 
-               ret = target_write_u8(target, mflash_bank->base + MG_REG_OFFSET + MG_REG_COMMAND, mg_io_cmd_confirm_write);
+               ret = target_write_u8(target,
+                               mflash_bank->base + MG_REG_OFFSET + MG_REG_COMMAND,
+                               mg_io_cmd_confirm_write);
                if (ret != ERROR_OK)
                        return ret;
 
-               LOG_DEBUG("mflash: %" PRIu32 " (0x%8.8" PRIx32 ") sector write", sect_num + i, (sect_num + i) * MG_MFLASH_SECTOR_SIZE);
+               LOG_DEBUG("mflash: %" PRIu32 " (0x%8.8" PRIx32 ") sector write", sect_num + i,
+                       (sect_num + i) * MG_MFLASH_SECTOR_SIZE);
 
                ret = duration_measure(&bench);
                if ((ERROR_OK == ret) && (duration_elapsed(&bench) > 3)) {
@@ -569,7 +588,7 @@ static int mg_mflash_write_sects(void *buff, uint32_t sect_num, uint32_t sect_cn
        return ret;
 }
 
-static int mg_mflash_read (uint32_t addr, uint8_t *buff, uint32_t len)
+static int mg_mflash_read(uint32_t addr, uint8_t *buff, uint32_t len)
 {
        uint8_t *buff_ptr = buff;
        uint8_t sect_buff[MG_MFLASH_SECTOR_SIZE];
@@ -589,12 +608,22 @@ static int mg_mflash_read (uint32_t addr, uint8_t *buff, uint32_t len)
                        return ret;
 
                if (end_addr < next_sec_addr) {
-                       memcpy(buff_ptr, sect_buff + (cur_addr & MG_MFLASH_SECTOR_SIZE_MASK), end_addr - cur_addr);
-                       LOG_DEBUG("mflash: copies %" PRIu32 " byte from sector offset 0x%8.8" PRIx32 "", end_addr - cur_addr, cur_addr);
+                       memcpy(buff_ptr,
+                               sect_buff + (cur_addr & MG_MFLASH_SECTOR_SIZE_MASK),
+                               end_addr - cur_addr);
+                       LOG_DEBUG(
+                               "mflash: copies %" PRIu32 " byte from sector offset 0x%8.8" PRIx32 "",
+                               end_addr - cur_addr,
+                               cur_addr);
                        cur_addr = end_addr;
                } else {
-                       memcpy(buff_ptr, sect_buff + (cur_addr & MG_MFLASH_SECTOR_SIZE_MASK), next_sec_addr - cur_addr);
-                       LOG_DEBUG("mflash: copies %" PRIu32 " byte from sector offset 0x%8.8" PRIx32 "", next_sec_addr - cur_addr, cur_addr);
+                       memcpy(buff_ptr,
+                               sect_buff + (cur_addr & MG_MFLASH_SECTOR_SIZE_MASK),
+                               next_sec_addr - cur_addr);
+                       LOG_DEBUG(
+                               "mflash: copies %" PRIu32 " byte from sector offset 0x%8.8" PRIx32 "",
+                               next_sec_addr - cur_addr,
+                               cur_addr);
                        buff_ptr += (next_sec_addr - cur_addr);
                        cur_addr = next_sec_addr;
                }
@@ -610,9 +639,11 @@ static int mg_mflash_read (uint32_t addr, uint8_t *buff, uint32_t len)
                        next_sec_addr += MG_MFLASH_SECTOR_SIZE;
                }
 
-               if (cnt)
-                       if ((ret = mg_mflash_read_sects(buff_ptr, sect_num, cnt)) != ERROR_OK)
+               if (cnt) {
+                       ret = mg_mflash_read_sects(buff_ptr, sect_num, cnt);
+                       if (ret != ERROR_OK)
                                return ret;
+               }
 
                buff_ptr += cnt * MG_MFLASH_SECTOR_SIZE;
                cur_addr += cnt * MG_MFLASH_SECTOR_SIZE;
@@ -626,7 +657,6 @@ static int mg_mflash_read (uint32_t addr, uint8_t *buff, uint32_t len)
 
                        memcpy(buff_ptr, sect_buff, end_addr - cur_addr);
                        LOG_DEBUG("mflash: copies %u byte", (unsigned)(end_addr - cur_addr));
-
                }
        }
 
@@ -653,12 +683,22 @@ static int mg_mflash_write(uint32_t addr, uint8_t *buff, uint32_t len)
                        return ret;
 
                if (end_addr < next_sec_addr) {
-                       memcpy(sect_buff + (cur_addr & MG_MFLASH_SECTOR_SIZE_MASK), buff_ptr, end_addr - cur_addr);
-                       LOG_DEBUG("mflash: copies %" PRIu32 " byte to sector offset 0x%8.8" PRIx32 "", end_addr - cur_addr, cur_addr);
+                       memcpy(sect_buff + (cur_addr & MG_MFLASH_SECTOR_SIZE_MASK),
+                               buff_ptr,
+                               end_addr - cur_addr);
+                       LOG_DEBUG(
+                               "mflash: copies %" PRIu32 " byte to sector offset 0x%8.8" PRIx32 "",
+                               end_addr - cur_addr,
+                               cur_addr);
                        cur_addr = end_addr;
                } else {
-                       memcpy(sect_buff + (cur_addr & MG_MFLASH_SECTOR_SIZE_MASK), buff_ptr, next_sec_addr - cur_addr);
-                       LOG_DEBUG("mflash: copies %" PRIu32 " byte to sector offset 0x%8.8" PRIx32 "", next_sec_addr - cur_addr, cur_addr);
+                       memcpy(sect_buff + (cur_addr & MG_MFLASH_SECTOR_SIZE_MASK),
+                               buff_ptr,
+                               next_sec_addr - cur_addr);
+                       LOG_DEBUG(
+                               "mflash: copies %" PRIu32 " byte to sector offset 0x%8.8" PRIx32 "",
+                               next_sec_addr - cur_addr,
+                               cur_addr);
                        buff_ptr += (next_sec_addr - cur_addr);
                        cur_addr = next_sec_addr;
                }
@@ -678,9 +718,11 @@ static int mg_mflash_write(uint32_t addr, uint8_t *buff, uint32_t len)
                        next_sec_addr += MG_MFLASH_SECTOR_SIZE;
                }
 
-               if (cnt)
-                       if ((ret = mg_mflash_write_sects(buff_ptr, sect_num, cnt)) != ERROR_OK)
+               if (cnt) {
+                       ret = mg_mflash_write_sects(buff_ptr, sect_num, cnt);
+                       if (ret != ERROR_OK)
                                return ret;
+               }
 
                buff_ptr += cnt * MG_MFLASH_SECTOR_SIZE;
                cur_addr += cnt * MG_MFLASH_SECTOR_SIZE;
@@ -705,12 +747,11 @@ COMMAND_HANDLER(mg_write_cmd)
 {
        uint32_t address, cnt, res, i;
        uint8_t *buffer;
-       struct fileio fileio;
+       struct fileio *fileio;
        int ret;
 
-       if (CMD_ARGC != 3) {
+       if (CMD_ARGC != 3)
                return ERROR_COMMAND_SYNTAX_ERROR;
-       }
 
        COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], address);
 
@@ -718,50 +759,59 @@ COMMAND_HANDLER(mg_write_cmd)
        if (ret != ERROR_OK)
                return ret;
 
+       size_t filesize;
        buffer = malloc(MG_FILEIO_CHUNK);
        if (!buffer) {
-               fileio_close(&fileio);
+               fileio_close(fileio);
                return ERROR_FAIL;
        }
+       int retval = fileio_size(fileio, &filesize);
+       if (retval != ERROR_OK) {
+               fileio_close(fileio);
+               free(buffer);
+               return retval;
+       }
 
-       cnt = fileio.size / MG_FILEIO_CHUNK;
-       res = fileio.size % MG_FILEIO_CHUNK;
+       cnt = filesize / MG_FILEIO_CHUNK;
+       res = filesize % MG_FILEIO_CHUNK;
 
        struct duration bench;
        duration_start(&bench);
 
        size_t buf_cnt;
        for (i = 0; i < cnt; i++) {
-               if ((ret = fileio_read(&fileio, MG_FILEIO_CHUNK, buffer, &buf_cnt)) !=
-                               ERROR_OK)
+               ret = fileio_read(fileio, MG_FILEIO_CHUNK, buffer, &buf_cnt);
+               if (ret != ERROR_OK)
                        goto mg_write_cmd_err;
-               if ((ret = mg_mflash_write(address, buffer, MG_FILEIO_CHUNK)) != ERROR_OK)
+               ret = mg_mflash_write(address, buffer, MG_FILEIO_CHUNK);
+               if (ret != ERROR_OK)
                        goto mg_write_cmd_err;
                address += MG_FILEIO_CHUNK;
        }
 
        if (res) {
-               if ((ret = fileio_read(&fileio, res, buffer, &buf_cnt)) != ERROR_OK)
+               ret = fileio_read(fileio, res, buffer, &buf_cnt);
+               if (ret != ERROR_OK)
                        goto mg_write_cmd_err;
-               if ((ret = mg_mflash_write(address, buffer, res)) != ERROR_OK)
+               ret = mg_mflash_write(address, buffer, res);
+               if (ret != ERROR_OK)
                        goto mg_write_cmd_err;
        }
 
-       if (duration_measure(&bench) == ERROR_OK)
-       {
-               command_print(CMD_CTX, "wrote %zu byte from file %s "
-                               "in %fs (%0.3f kB/s)", fileio.size, CMD_ARGV[1],
-                               duration_elapsed(&bench), duration_kbps(&bench, fileio.size));
+       if (duration_measure(&bench) == ERROR_OK) {
+               command_print(CMD_CTX, "wrote %zu bytes from file %s "
+                       "in %fs (%0.3f kB/s)", filesize, CMD_ARGV[1],
+                       duration_elapsed(&bench), duration_kbps(&bench, filesize));
        }
 
        free(buffer);
-       fileio_close(&fileio);
+       fileio_close(fileio);
 
        return ERROR_OK;
 
 mg_write_cmd_err:
-       free(buffer);
-       fileio_close(&fileio);
+       free(buffer);
+       fileio_close(fileio);
 
        return ret;
 }
@@ -770,12 +820,11 @@ COMMAND_HANDLER(mg_dump_cmd)
 {
        uint32_t address, size, cnt, res, i;
        uint8_t *buffer;
-       struct fileio fileio;
+       struct fileio *fileio;
        int ret;
 
-       if (CMD_ARGC != 4) {
+       if (CMD_ARGC != 4)
                return ERROR_COMMAND_SYNTAX_ERROR;
-       }
 
        COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], address);
        COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], size);
@@ -786,7 +835,7 @@ COMMAND_HANDLER(mg_dump_cmd)
 
        buffer = malloc(MG_FILEIO_CHUNK);
        if (!buffer) {
-               fileio_close(&fileio);
+               fileio_close(fileio);
                return ERROR_FAIL;
        }
 
@@ -798,37 +847,39 @@ COMMAND_HANDLER(mg_dump_cmd)
 
        size_t size_written;
        for (i = 0; i < cnt; i++) {
-               if ((ret = mg_mflash_read(address, buffer, MG_FILEIO_CHUNK)) != ERROR_OK)
+               ret = mg_mflash_read(address, buffer, MG_FILEIO_CHUNK);
+               if (ret != ERROR_OK)
                        goto mg_dump_cmd_err;
-               if ((ret = fileio_write(&fileio, MG_FILEIO_CHUNK, buffer, &size_written))
-                               != ERROR_OK)
+               ret = fileio_write(fileio, MG_FILEIO_CHUNK, buffer, &size_written);
+               if (ret != ERROR_OK)
                        goto mg_dump_cmd_err;
                address += MG_FILEIO_CHUNK;
        }
 
        if (res) {
-               if ((ret = mg_mflash_read(address, buffer, res)) != ERROR_OK)
+               ret = mg_mflash_read(address, buffer, res);
+               if (ret != ERROR_OK)
                        goto mg_dump_cmd_err;
-               if ((ret = fileio_write(&fileio, res, buffer, &size_written)) != ERROR_OK)
+               ret = fileio_write(fileio, res, buffer, &size_written);
+               if (ret != ERROR_OK)
                        goto mg_dump_cmd_err;
        }
 
-       if (duration_measure(&bench) == ERROR_OK)
-       {
+       if (duration_measure(&bench) == ERROR_OK) {
                command_print(CMD_CTX, "dump image (address 0x%8.8" PRIx32 " "
-                               "size %" PRIu32 ") to file %s in %fs (%0.3f kB/s)",
-                               address, size, CMD_ARGV[1],
-                               duration_elapsed(&bench), duration_kbps(&bench, size));
+                       "size %" PRIu32 ") to file %s in %fs (%0.3f kB/s)",
+                       address, size, CMD_ARGV[1],
+                       duration_elapsed(&bench), duration_kbps(&bench, size));
        }
 
        free(buffer);
-       fileio_close(&fileio);
+       fileio_close(fileio);
 
        return ERROR_OK;
 
 mg_dump_cmd_err:
-       free(buffer);
-       fileio_close(&fileio);
+       free(buffer);
+       fileio_close(fileio);
 
        return ret;
 }
@@ -839,8 +890,8 @@ static int mg_set_feature(mg_feature_id feature, mg_feature_val config)
        uint32_t mg_task_reg = mflash_bank->base + MG_REG_OFFSET;
        int ret;
 
-       if ((ret = mg_dsk_wait(mg_io_wait_rdy_noerr, MG_OEM_DISK_WAIT_TIME_NORMAL))
-                       != ERROR_OK)
+       ret = mg_dsk_wait(mg_io_wait_rdy_noerr, MG_OEM_DISK_WAIT_TIME_NORMAL);
+       if (ret != ERROR_OK)
                return ret;
 
        ret = target_write_u8(target, mg_task_reg + MG_REG_FEATURE, feature);
@@ -856,7 +907,7 @@ static int mg_is_valid_pll(double XIN, int N, double CLK_OUT, int NO)
        double v1 = XIN / N;
        double v2 = CLK_OUT * NO;
 
-       if (v1 <1000000 || v1 > 15000000 || v2 < 100000000 || v2 > 500000000)
+       if (v1 < 1000000 || v1 > 15000000 || v2 < 100000000 || v2 > 500000000)
                return ERROR_MG_INVALID_PLL;
 
        return ERROR_OK;
@@ -882,7 +933,7 @@ static int mg_pll_get_N(unsigned char input_div)
        return N + 2;
 }
 
-static int mg_pll_get_NO(unsigned char  output_div)
+static int mg_pll_get_NO(unsigned char output_div)
 {
        int i, NO;
 
@@ -893,11 +944,11 @@ static int mg_pll_get_NO(unsigned char  output_div)
        return NO;
 }
 
-static double mg_do_calc_pll(double XIN, mg_pll_t * p_pll_val, int is_approximate)
+static double mg_do_calc_pll(double XIN, mg_pll_t *p_pll_val, int is_approximate)
 {
        unsigned short i;
-       unsigned char  j, k;
-       int            M, N, NO;
+       unsigned char j, k;
+       int M, N, NO;
        double CLK_OUT;
        double DIV = 1;
        double ROUND = 0;
@@ -907,22 +958,23 @@ static double mg_do_calc_pll(double XIN, mg_pll_t * p_pll_val, int is_approximat
                ROUND = 500000;
        }
 
-       for (i = 0; i < MG_PLL_MAX_FEEDBACKDIV_VAL ; ++i) {
+       for (i = 0; i < MG_PLL_MAX_FEEDBACKDIV_VAL; ++i) {
                M  = mg_pll_get_M(i);
 
-               for (j = 0; j < MG_PLL_MAX_INPUTDIV_VAL ; ++j) {
+               for (j = 0; j < MG_PLL_MAX_INPUTDIV_VAL; ++j) {
                        N  = mg_pll_get_N(j);
 
-                       for (k = 0; k < MG_PLL_MAX_OUTPUTDIV_VAL ; ++k) {
+                       for (k = 0; k < MG_PLL_MAX_OUTPUTDIV_VAL; ++k) {
                                NO = mg_pll_get_NO(k);
 
                                CLK_OUT = XIN * ((double)M / N) / NO;
 
                                if ((int)((CLK_OUT + ROUND) / DIV)
-                                               == (int)(MG_PLL_CLK_OUT / DIV)) {
-                                       if (mg_is_valid_pll(XIN, N, CLK_OUT, NO) == ERROR_OK)
-                                       {
-                                               p_pll_val->lock_cyc = (int)(XIN * MG_PLL_STD_LOCKCYCLE / MG_PLL_STD_INPUTCLK);
+                                   == (int)(MG_PLL_CLK_OUT / DIV)) {
+                                       if (mg_is_valid_pll(XIN, N, CLK_OUT, NO) == ERROR_OK) {
+                                               p_pll_val->lock_cyc =
+                                                       (int)(XIN * MG_PLL_STD_LOCKCYCLE /
+                                                             MG_PLL_STD_INPUTCLK);
                                                p_pll_val->feedback_div = i;
                                                p_pll_val->input_div = j;
                                                p_pll_val->output_div = k;
@@ -986,128 +1038,128 @@ static int mg_verify_interface(void)
 }
 
 static const char g_strSEG_SerialNum[20] = {
-       'G','m','n','i','-','e','e','S','g','a','e','l',
-       0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20
+       'G', 'm', 'n', 'i', '-', 'e', 'e', 'S', 'g', 'a', 'e', 'l',
+       0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20
 };
 
 static const char g_strSEG_FWRev[8] = {
-       'F','X','L','T','2','v','0','.'
+       'F', 'X', 'L', 'T', '2', 'v', '0', '.'
 };
 
 static const char g_strSEG_ModelNum[40] = {
-       'F','X','A','L','H','S','2',0x20,'0','0','s','7',
-       0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,
-       0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,
-       0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20
+       'F', 'X', 'A', 'L', 'H', 'S', '2', 0x20, '0', '0', 's', '7',
+       0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+       0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+       0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20
 };
 
 static void mg_gen_ataid(mg_io_type_drv_info *pSegIdDrvInfo)
 {
        /* b15 is ATA device(0) , b7 is Removable Media Device */
-       pSegIdDrvInfo->general_configuration            = 0x045A;
+       pSegIdDrvInfo->general_configuration            = 0x045A;
        /* 128MB :   Cylinder=> 977 , Heads=> 8 ,  Sectors=> 32
         * 256MB :   Cylinder=> 980 , Heads=> 16 , Sectors=> 32
         * 384MB :   Cylinder=> 745 , Heads=> 16 , Sectors=> 63
         */
-       pSegIdDrvInfo->number_of_cylinders              = 0x02E9;
-       pSegIdDrvInfo->reserved1                        = 0x0;
-       pSegIdDrvInfo->number_of_heads                  = 0x10;
-       pSegIdDrvInfo->unformatted_bytes_per_track      = 0x0;
-       pSegIdDrvInfo->unformatted_bytes_per_sector     = 0x0;
-       pSegIdDrvInfo->sectors_per_track                = 0x3F;
-       pSegIdDrvInfo->vendor_unique1[0]                = 0x000B;
-       pSegIdDrvInfo->vendor_unique1[1]                = 0x7570;
-       pSegIdDrvInfo->vendor_unique1[2]                = 0x8888;
-
-       memcpy(pSegIdDrvInfo->serial_number, (void *)g_strSEG_SerialNum,20);
+       pSegIdDrvInfo->number_of_cylinders              = 0x02E9;
+       pSegIdDrvInfo->reserved1                        = 0x0;
+       pSegIdDrvInfo->number_of_heads                  = 0x10;
+       pSegIdDrvInfo->unformatted_bytes_per_track      = 0x0;
+       pSegIdDrvInfo->unformatted_bytes_per_sector     = 0x0;
+       pSegIdDrvInfo->sectors_per_track                = 0x3F;
+       pSegIdDrvInfo->vendor_unique1[0]                = 0x000B;
+       pSegIdDrvInfo->vendor_unique1[1]                = 0x7570;
+       pSegIdDrvInfo->vendor_unique1[2]                = 0x8888;
+
+       memcpy(pSegIdDrvInfo->serial_number, g_strSEG_SerialNum, 20);
        /* 0x2 : dual buffer */
-       pSegIdDrvInfo->buffer_type                      = 0x2;
+       pSegIdDrvInfo->buffer_type                      = 0x2;
        /* buffer size : 2KB */
-       pSegIdDrvInfo->buffer_sector_size               = 0x800;
-       pSegIdDrvInfo->number_of_ecc_bytes              = 0;
+       pSegIdDrvInfo->buffer_sector_size               = 0x800;
+       pSegIdDrvInfo->number_of_ecc_bytes              = 0;
 
-       memcpy(pSegIdDrvInfo->firmware_revision, (void *)g_strSEG_FWRev,8);
+       memcpy(pSegIdDrvInfo->firmware_revision, g_strSEG_FWRev, 8);
 
-       memcpy(pSegIdDrvInfo->model_number, (void *)g_strSEG_ModelNum,40);
+       memcpy(pSegIdDrvInfo->model_number, g_strSEG_ModelNum, 40);
 
-       pSegIdDrvInfo->maximum_block_transfer           = 0x4;
-       pSegIdDrvInfo->vendor_unique2                   = 0x0;
-       pSegIdDrvInfo->dword_io                         = 0x00;
+       pSegIdDrvInfo->maximum_block_transfer           = 0x4;
+       pSegIdDrvInfo->vendor_unique2                   = 0x0;
+       pSegIdDrvInfo->dword_io                         = 0x00;
        /* b11 : IORDY support(PIO Mode 4), b10 : Disable/Enbale IORDY
         * b9  : LBA support, b8 : DMA mode support
         */
-       pSegIdDrvInfo->capabilities                     = 0x1 << 9;
+       pSegIdDrvInfo->capabilities                     = 0x1 << 9;
 
-       pSegIdDrvInfo->reserved2                        = 0x4000;
-       pSegIdDrvInfo->vendor_unique3                   = 0x00;
+       pSegIdDrvInfo->reserved2                        = 0x4000;
+       pSegIdDrvInfo->vendor_unique3                   = 0x00;
        /* PIOMode-2 support */
-       pSegIdDrvInfo->pio_cycle_timing_mode            = 0x02;
-       pSegIdDrvInfo->vendor_unique4                   = 0x00;
+       pSegIdDrvInfo->pio_cycle_timing_mode            = 0x02;
+       pSegIdDrvInfo->vendor_unique4                   = 0x00;
        /* MultiWord-2 support */
-       pSegIdDrvInfo->dma_cycle_timing_mode            = 0x00;
+       pSegIdDrvInfo->dma_cycle_timing_mode            = 0x00;
        /* b1 : word64~70 is valid
         * b0 : word54~58 are valid and reflect the current numofcyls,heads,sectors
         * b2 : If device supports Ultra DMA , set to one to vaildate word88
         */
-       pSegIdDrvInfo->translation_fields_valid         = (0x1 << 1) | (0x1 << 0);
-       pSegIdDrvInfo->number_of_current_cylinders      = 0x02E9;
-       pSegIdDrvInfo->number_of_current_heads          = 0x10;
-       pSegIdDrvInfo->current_sectors_per_track        = 0x3F;
-       pSegIdDrvInfo->current_sector_capacity_lo       = 0x7570;
-       pSegIdDrvInfo->current_sector_capacity_hi       = 0x000B;
-
-       pSegIdDrvInfo->multi_sector_count                       = 0x04;
+       pSegIdDrvInfo->translation_fields_valid         = (0x1 << 1) | (0x1 << 0);
+       pSegIdDrvInfo->number_of_current_cylinders      = 0x02E9;
+       pSegIdDrvInfo->number_of_current_heads          = 0x10;
+       pSegIdDrvInfo->current_sectors_per_track        = 0x3F;
+       pSegIdDrvInfo->current_sector_capacity_lo       = 0x7570;
+       pSegIdDrvInfo->current_sector_capacity_hi       = 0x000B;
+
+       pSegIdDrvInfo->multi_sector_count                       = 0x04;
        /* b8 : Multiple secotr setting valid , b[7:0] num of secotrs per block */
-       pSegIdDrvInfo->multi_sector_setting_valid               = 0x01;
-       pSegIdDrvInfo->total_user_addressable_sectors_lo        = 0x7570;
-       pSegIdDrvInfo->total_user_addressable_sectors_hi        = 0x000B;
-       pSegIdDrvInfo->single_dma_modes_supported               = 0x00;
-       pSegIdDrvInfo->single_dma_transfer_active               = 0x00;
+       pSegIdDrvInfo->multi_sector_setting_valid               = 0x01;
+       pSegIdDrvInfo->total_user_addressable_sectors_lo        = 0x7570;
+       pSegIdDrvInfo->total_user_addressable_sectors_hi        = 0x000B;
+       pSegIdDrvInfo->single_dma_modes_supported               = 0x00;
+       pSegIdDrvInfo->single_dma_transfer_active               = 0x00;
        /* b2 :Multi-word DMA mode 2, b1 : Multi-word DMA mode 1 */
-       pSegIdDrvInfo->multi_dma_modes_supported                = (0x1 << 0);
+       pSegIdDrvInfo->multi_dma_modes_supported                = (0x1 << 0);
        /* b2 :Multi-word DMA mode 2, b1 : Multi-word DMA mode 1 */
-       pSegIdDrvInfo->multi_dma_transfer_active                = (0x1 << 0);
+       pSegIdDrvInfo->multi_dma_transfer_active                = (0x1 << 0);
        /* b0 : PIO Mode-3 support, b1 : PIO Mode-4 support */
-       pSegIdDrvInfo->adv_pio_mode                             = 0x00;
+       pSegIdDrvInfo->adv_pio_mode                             = 0x00;
        /* 480(0x1E0)nsec for Multi-word DMA mode0
         * 150(0x96) nsec for Multi-word DMA mode1
         * 120(0x78) nsec for Multi-word DMA mode2
         */
-       pSegIdDrvInfo->min_dma_cyc                      = 0x1E0;
-       pSegIdDrvInfo->recommend_dma_cyc                = 0x1E0;
-       pSegIdDrvInfo->min_pio_cyc_no_iordy             = 0x1E0;
-       pSegIdDrvInfo->min_pio_cyc_with_iordy           = 0x1E0;
-       memset((void *)pSegIdDrvInfo->reserved3, 0x00, 22);
+       pSegIdDrvInfo->min_dma_cyc                      = 0x1E0;
+       pSegIdDrvInfo->recommend_dma_cyc                = 0x1E0;
+       pSegIdDrvInfo->min_pio_cyc_no_iordy             = 0x1E0;
+       pSegIdDrvInfo->min_pio_cyc_with_iordy           = 0x1E0;
+       memset(pSegIdDrvInfo->reserved3, 0x00, 22);
        /* b7 : ATA/ATAPI-7 ,b6 : ATA/ATAPI-6 ,b5 : ATA/ATAPI-5,b4 : ATA/ATAPI-4 */
-       pSegIdDrvInfo->major_ver_num                    = 0x7E;
+       pSegIdDrvInfo->major_ver_num                    = 0x7E;
        /* 0x1C : ATA/ATAPI-6 T13 1532D revision1 */
-       pSegIdDrvInfo->minor_ver_num                    = 0x19;
+       pSegIdDrvInfo->minor_ver_num                    = 0x19;
        /* NOP/READ BUFFER/WRITE BUFFER/Power management feature set support */
-       pSegIdDrvInfo->feature_cmd_set_suprt0           = 0x7068;
+       pSegIdDrvInfo->feature_cmd_set_suprt0           = 0x7068;
        /* Features/command set is valid/Advanced Pwr management/CFA feature set
         * not support
         */
-       pSegIdDrvInfo->feature_cmd_set_suprt1           = 0x400C;
-       pSegIdDrvInfo->feature_cmd_set_suprt2           = 0x4000;
+       pSegIdDrvInfo->feature_cmd_set_suprt1           = 0x400C;
+       pSegIdDrvInfo->feature_cmd_set_suprt2           = 0x4000;
        /* READ/WRITE BUFFER/PWR Management enable */
-       pSegIdDrvInfo->feature_cmd_set_en0              = 0x7000;
+       pSegIdDrvInfo->feature_cmd_set_en0              = 0x7000;
        /* CFA feature is disabled / Advancde power management disable */
-       pSegIdDrvInfo->feature_cmd_set_en1              = 0x0;
-       pSegIdDrvInfo->feature_cmd_set_en2              = 0x4000;
-       pSegIdDrvInfo->reserved4                        = 0x0;
+       pSegIdDrvInfo->feature_cmd_set_en1              = 0x0;
+       pSegIdDrvInfo->feature_cmd_set_en2              = 0x4000;
+       pSegIdDrvInfo->reserved4                        = 0x0;
        /* 0x1 * 2minutes */
-       pSegIdDrvInfo->req_time_for_security_er_done    = 0x19;
-       pSegIdDrvInfo->req_time_for_enhan_security_er_done      = 0x19;
+       pSegIdDrvInfo->req_time_for_security_er_done    = 0x19;
+       pSegIdDrvInfo->req_time_for_enhan_security_er_done      = 0x19;
        /* Advanced power management level 1 */
-       pSegIdDrvInfo->adv_pwr_mgm_lvl_val                      = 0x0;
-       pSegIdDrvInfo->reserved5                        = 0x0;
-       memset((void *)pSegIdDrvInfo->reserved6, 0x00, 68);
+       pSegIdDrvInfo->adv_pwr_mgm_lvl_val                      = 0x0;
+       pSegIdDrvInfo->reserved5                        = 0x0;
+       memset(pSegIdDrvInfo->reserved6, 0x00, 68);
        /* Security mode feature is disabled */
-       pSegIdDrvInfo->security_stas                    = 0x0;
-       memset((void *)pSegIdDrvInfo->vendor_uniq_bytes, 0x00, 62);
+       pSegIdDrvInfo->security_stas                    = 0x0;
+       memset(pSegIdDrvInfo->vendor_uniq_bytes, 0x00, 62);
        /* CFA power mode 1 support in maximum 200mA */
-       pSegIdDrvInfo->cfa_pwr_mode                     = 0x0100;
-       memset((void *)pSegIdDrvInfo->reserved7, 0x00, 190);
+       pSegIdDrvInfo->cfa_pwr_mode                     = 0x0100;
+       memset(pSegIdDrvInfo->reserved7, 0x00, 190);
 }
 
 static int mg_storage_config(void)
@@ -1115,18 +1167,18 @@ static int mg_storage_config(void)
        uint8_t buff[512];
        int ret;
 
-       if ((ret = mg_set_feature(mg_feature_id_transmode, mg_feature_val_trans_vcmd))
-                       != ERROR_OK)
+       ret = mg_set_feature(mg_feature_id_transmode, mg_feature_val_trans_vcmd);
+       if (ret != ERROR_OK)
                return ret;
 
-       mg_gen_ataid((mg_io_type_drv_info *)buff);
+       mg_gen_ataid((mg_io_type_drv_info *)(void *)buff);
 
-       if ((ret = mg_mflash_do_write_sects(buff, 0, 1, mg_vcmd_update_stgdrvinfo))
-                       != ERROR_OK)
+       ret = mg_mflash_do_write_sects(buff, 0, 1, mg_vcmd_update_stgdrvinfo);
+       if (ret != ERROR_OK)
                return ret;
 
-       if ((ret = mg_set_feature(mg_feature_id_transmode, mg_feature_val_trans_default))
-                       != ERROR_OK)
+       ret = mg_set_feature(mg_feature_id_transmode, mg_feature_val_trans_default);
+       if (ret != ERROR_OK)
                return ret;
 
        LOG_INFO("mflash: storage config ok");
@@ -1138,8 +1190,8 @@ static int mg_boot_config(void)
        uint8_t buff[512];
        int ret;
 
-       if ((ret = mg_set_feature(mg_feature_id_transmode, mg_feature_val_trans_vcmd))
-                       != ERROR_OK)
+       ret = mg_set_feature(mg_feature_id_transmode, mg_feature_val_trans_vcmd);
+       if (ret != ERROR_OK)
                return ret;
 
        memset(buff, 0xff, 512);
@@ -1147,14 +1199,14 @@ static int mg_boot_config(void)
        buff[0] = mg_op_mode_snd;               /* operation mode */
        buff[1] = MG_UNLOCK_OTP_AREA;
        buff[2] = 4;                            /* boot size */
-       *((uint32_t *)(buff + 4)) = 0;          /* XIP size */
+       *((uint32_t *)(void *)(buff + 4)) = 0;          /* XIP size */
 
-       if ((ret = mg_mflash_do_write_sects(buff, 0, 1, mg_vcmd_update_xipinfo))
-                       != ERROR_OK)
+       ret = mg_mflash_do_write_sects(buff, 0, 1, mg_vcmd_update_xipinfo);
+       if (ret != ERROR_OK)
                return ret;
 
-       if ((ret = mg_set_feature(mg_feature_id_transmode, mg_feature_val_trans_default))
-                       != ERROR_OK)
+       ret = mg_set_feature(mg_feature_id_transmode, mg_feature_val_trans_default);
+       if (ret != ERROR_OK)
                return ret;
 
        LOG_INFO("mflash: boot config ok");
@@ -1173,16 +1225,16 @@ static int mg_set_pll(mg_pll_t *pll)
        buff[6] = pll->input_div;               /* PLL Input 5bit Divider */
        buff[7] = pll->output_div;              /* PLL Output Divider */
 
-       if ((ret = mg_set_feature(mg_feature_id_transmode, mg_feature_val_trans_vcmd))
-                       != ERROR_OK)
+       ret = mg_set_feature(mg_feature_id_transmode, mg_feature_val_trans_vcmd);
+       if (ret != ERROR_OK)
                return ret;
 
-       if ((ret = mg_mflash_do_write_sects(buff, 0, 1, mg_vcmd_wr_pll))
-                       != ERROR_OK)
+       ret = mg_mflash_do_write_sects(buff, 0, 1, mg_vcmd_wr_pll);
+       if (ret != ERROR_OK)
                return ret;
 
-       if ((ret = mg_set_feature(mg_feature_id_transmode, mg_feature_val_trans_default))
-                       != ERROR_OK)
+       ret = mg_set_feature(mg_feature_id_transmode, mg_feature_val_trans_default);
+       if (ret != ERROR_OK)
                return ret;
 
        LOG_INFO("mflash: set pll ok");
@@ -1193,16 +1245,16 @@ static int mg_erase_nand(void)
 {
        int ret;
 
-       if ((ret = mg_set_feature(mg_feature_id_transmode, mg_feature_val_trans_vcmd))
-                       != ERROR_OK)
+       ret = mg_set_feature(mg_feature_id_transmode, mg_feature_val_trans_vcmd);
+       if (ret != ERROR_OK)
                return ret;
 
-       if ((ret = mg_mflash_do_write_sects(NULL, 0, 0, mg_vcmd_purge_nand))
-                       != ERROR_OK)
+       ret = mg_mflash_do_write_sects(NULL, 0, 0, mg_vcmd_purge_nand);
+       if (ret != ERROR_OK)
                return ret;
 
-       if ((ret = mg_set_feature(mg_feature_id_transmode, mg_feature_val_trans_default))
-                       != ERROR_OK)
+       ret = mg_set_feature(mg_feature_id_transmode, mg_feature_val_trans_default);
+       if (ret != ERROR_OK)
                return ret;
 
        LOG_INFO("mflash: erase nand ok");
@@ -1215,10 +1267,12 @@ COMMAND_HANDLER(mg_config_cmd)
        mg_pll_t pll;
        int ret;
 
-       if ((ret = mg_verify_interface()) != ERROR_OK)
+       ret = mg_verify_interface();
+       if (ret != ERROR_OK)
                return ret;
 
-       if ((ret = mg_mflash_rst()) != ERROR_OK)
+       ret = mg_mflash_rst();
+       if (ret != ERROR_OK)
                return ret;
 
        switch (CMD_ARGC) {
@@ -1254,7 +1308,8 @@ COMMAND_HANDLER(mg_config_cmd)
                                                pll.input_div, pll.output_div,
                                                pll.lock_cyc);
 
-                               if ((ret = mg_erase_nand()) != ERROR_OK)
+                               ret = mg_erase_nand();
+                               if (ret != ERROR_OK)
                                        return ret;
 
                                return mg_set_pll(&pll);
@@ -1269,35 +1324,38 @@ COMMAND_HANDLER(mg_config_cmd)
 static const struct command_registration mflash_exec_command_handlers[] = {
        {
                .name = "probe",
-               .handler = &mg_probe_cmd,
+               .handler = mg_probe_cmd,
                .mode = COMMAND_EXEC,
                .help = "Detect bank configuration information",
        },
        {
                .name = "write",
-               .handler = &mg_write_cmd,
+               .handler = mg_write_cmd,
                .mode = COMMAND_EXEC,
-               .usage = "<num> <file> <address>",
-               .help = "Write a file at the specified address",
+               /* FIXME bank_num is unused */
+               .usage = "bank_num filename address",
+               .help = "Write binary file at the specified address.",
        },
        {
                .name = "dump",
-               .handler = &mg_dump_cmd,
+               .handler = mg_dump_cmd,
                .mode = COMMAND_EXEC,
-               .usage = "<num> <file> <address> <size>",
-               .help = "Dump to a file from the specified address",
+               /* FIXME bank_num is unused */
+               .usage = "bank_num filename address size",
+               .help = "Write specified number of bytes from a binary file "
+                       "to the specified, address.",
        },
        {
                .name = "config",
-               .handler = &mg_config_cmd,
+               .handler = mg_config_cmd,
                .mode = COMMAND_EXEC,
-               .usage = "<num> <stage>",
-               .help = "Dump to a file from the specified address",
+               .help = "Configure MFLASH options.",
+               .usage = "('boot'|'storage'|'pll' frequency)",
        },
        COMMAND_REGISTRATION_DONE
 };
 
-int mflash_init_drivers(struct command_context *cmd_ctx)
+static int mflash_init_drivers(struct command_context *cmd_ctx)
 {
        if (!mflash_bank)
                return ERROR_OK;
@@ -1309,9 +1367,8 @@ COMMAND_HANDLER(handle_mflash_init_command)
        if (CMD_ARGC != 0)
                return ERROR_COMMAND_SYNTAX_ERROR;
 
-       static bool mflash_initialized = false;
-       if (mflash_initialized)
-       {
+       static bool mflash_initialized;
+       if (mflash_initialized) {
                LOG_INFO("'mflash init' has already been called");
                return ERROR_OK;
        }
@@ -1327,33 +1384,31 @@ COMMAND_HANDLER(mg_bank_cmd)
        int i;
 
        if (CMD_ARGC < 4)
-       {
                return ERROR_COMMAND_SYNTAX_ERROR;
-       }
 
-       if ((target = get_target(CMD_ARGV[3])) == NULL)
-       {
+       target = get_target(CMD_ARGV[3]);
+       if (target == NULL) {
                LOG_ERROR("target '%s' not defined", CMD_ARGV[3]);
                return ERROR_FAIL;
        }
 
        mflash_bank = calloc(sizeof(struct mflash_bank), 1);
        COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], mflash_bank->base);
-       /// @todo Verify how this parsing should work, then document it.
+       /** @todo Verify how this parsing should work, then document it. */
        char *str;
        mflash_bank->rst_pin.num = strtoul(CMD_ARGV[2], &str, 0);
        if (*str)
-               mflash_bank->rst_pin.port[0] = (uint16_t)tolower(str[0]);
+               mflash_bank->rst_pin.port[0] = (uint16_t)
+                       tolower((unsigned)str[0]);
 
        mflash_bank->target = target;
 
-       for (i = 0; mflash_gpio[i] ; i++) {
-               if (! strcmp(mflash_gpio[i]->name, CMD_ARGV[0])) {
+       for (i = 0; mflash_gpio[i]; i++) {
+               if (!strcmp(mflash_gpio[i]->name, CMD_ARGV[0]))
                        mflash_bank->gpio_drv = mflash_gpio[i];
-               }
        }
 
-       if (! mflash_bank->gpio_drv) {
+       if (!mflash_bank->gpio_drv) {
                LOG_ERROR("%s is unsupported soc", CMD_ARGV[0]);
                return ERROR_MG_UNSUPPORTED_SOC;
        }
@@ -1364,16 +1419,17 @@ COMMAND_HANDLER(mg_bank_cmd)
 static const struct command_registration mflash_config_command_handlers[] = {
        {
                .name = "bank",
-               .handler = &mg_bank_cmd,
+               .handler = mg_bank_cmd,
                .mode = COMMAND_CONFIG,
                .help = "configure a mflash device bank",
-               .usage = "<soc> <base> <RST pin> <target #>",
+               .usage = "soc_type base_addr pin_id target",
        },
        {
                .name = "init",
                .mode = COMMAND_CONFIG,
-               .handler = &handle_mflash_init_command,
+               .handler = handle_mflash_init_command,
                .help = "initialize mflash devices",
+               .usage = ""
        },
        COMMAND_REGISTRATION_DONE
 };
@@ -1382,6 +1438,7 @@ static const struct command_registration mflash_command_handler[] = {
                .name = "mflash",
                .mode = COMMAND_ANY,
                .help = "mflash command group",
+               .usage = "",
                .chain = mflash_config_command_handlers,
        },
        COMMAND_REGISTRATION_DONE