]> git.sur5r.net Git - openocd/blobdiff - src/flash/mflash.c
ocd_flash_banks now returns empty list when no flash banks are configured instead...
[openocd] / src / flash / mflash.c
index 52c6a9fe4e6f626f1e82cfb67725a1ececf8d0ce..9bc94adf24cbf98181a828987cb8b9fd3a072cb3 100644 (file)
-/***************************************************************************\r
- *   Copyright (C) 2007-2008 by unsik Kim <donari75@gmail.com>             *\r
- *                                                                         *\r
- *   This program is free software; you can redistribute it and/or modify  *\r
- *   it under the terms of the GNU General Public License as published by  *\r
- *   the Free Software Foundation; either version 2 of the License, or     *\r
- *   (at your option) any later version.                                   *\r
- *                                                                         *\r
- *   This program is distributed in the hope that it will be useful,       *\r
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *\r
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *\r
- *   GNU General Public License for more details.                          *\r
- *                                                                         *\r
- *   You should have received a copy of the GNU General Public License     *\r
- *   along with this program; if not, write to the                         *\r
- *   Free Software Foundation, Inc.,                                       *\r
- *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *\r
- ***************************************************************************/\r
-\r
-#ifdef HAVE_CONFIG_H\r
-#include "config.h"\r
-#endif\r
-\r
-#include <ctype.h>\r
-#include <string.h>\r
-#include <unistd.h>\r
-#include <stdlib.h>\r
-#include <sys/types.h>\r
-#include <sys/stat.h>\r
-#include <errno.h>\r
-#include <inttypes.h>\r
-\r
-#include "command.h"\r
-#include "log.h"\r
-#include "target.h"\r
-#include "time_support.h"\r
-#include "fileio.h"\r
-#include "mflash.h"\r
-\r
-static int s3c2440_set_gpio_to_output (mflash_gpio_num_t gpio);\r
-static int s3c2440_set_gpio_output_val (mflash_gpio_num_t gpio, u8 val);\r
-static int pxa270_set_gpio_to_output (mflash_gpio_num_t gpio);\r
-static int pxa270_set_gpio_output_val (mflash_gpio_num_t gpio, u8 val);\r
-\r
-static command_t *mflash_cmd;\r
-\r
-static mflash_bank_t *mflash_bank;\r
-\r
-static mflash_gpio_drv_t pxa270_gpio = {\r
-       .name = "pxa270",\r
-       .set_gpio_to_output = pxa270_set_gpio_to_output,\r
-       .set_gpio_output_val = pxa270_set_gpio_output_val\r
-};\r
-\r
-static mflash_gpio_drv_t s3c2440_gpio = {\r
-       .name = "s3c2440",\r
-       .set_gpio_to_output = s3c2440_set_gpio_to_output,\r
-       .set_gpio_output_val = s3c2440_set_gpio_output_val\r
-};\r
-\r
-static mflash_gpio_drv_t *mflash_gpio[] =\r
-{\r
-               &pxa270_gpio,\r
-               &s3c2440_gpio,\r
-               NULL\r
-};\r
-\r
-#define PXA270_GAFR0_L 0x40E00054\r
-#define PXA270_GAFR3_U 0x40E00070\r
-#define PXA270_GAFR3_U_RESERVED_BITS  0xfffc0000u\r
-#define PXA270_GPDR0 0x40E0000C\r
-#define PXA270_GPDR3 0x40E0010C\r
-#define PXA270_GPDR3_RESERVED_BITS  0xfe000000u\r
-#define PXA270_GPSR0 0x40E00018\r
-#define PXA270_GPCR0 0x40E00024\r
-\r
-static int pxa270_set_gpio_to_output (mflash_gpio_num_t gpio)\r
-{\r
-       u32 addr, value, mask;\r
-       target_t *target = mflash_bank->target;\r
-       int ret;\r
-\r
-       // remove alternate function.\r
-       mask = 0x3u << (gpio.num & 0xF)*2;\r
-\r
-       addr = PXA270_GAFR0_L + (gpio.num >> 4) * 4;\r
-\r
-       if ((ret = target_read_u32(target, addr, &value)) != ERROR_OK)\r
-               return ret;\r
-\r
-       value &= ~mask;\r
-       if (addr == PXA270_GAFR3_U)\r
-               value &= ~PXA270_GAFR3_U_RESERVED_BITS;\r
-\r
-       if ((ret = target_write_u32(target, addr, value)) != ERROR_OK)\r
-               return ret;\r
-\r
-       // set direction to output\r
-       mask = 0x1u << (gpio.num & 0x1F);\r
-\r
-       addr = PXA270_GPDR0 + (gpio.num >> 5) * 4;\r
-\r
-       if ((ret = target_read_u32(target, addr, &value)) != ERROR_OK)\r
-               return ret;\r
-\r
-       value |= mask;\r
-       if (addr == PXA270_GPDR3)\r
-               value &= ~PXA270_GPDR3_RESERVED_BITS;\r
-\r
-       ret = target_write_u32(target, addr, value);\r
-       return ret;\r
-}\r
-\r
-static int pxa270_set_gpio_output_val (mflash_gpio_num_t gpio, u8 val)\r
-{\r
-       u32 addr, value, mask;\r
-       target_t *target = mflash_bank->target;\r
-       int ret;\r
-\r
-       mask = 0x1u << (gpio.num & 0x1F);\r
-\r
-       if (val) {\r
-               addr = PXA270_GPSR0 + (gpio.num >> 5) * 4;\r
-       } else {\r
-               addr = PXA270_GPCR0 + (gpio.num >> 5) * 4;\r
-       }\r
-\r
-       if ((ret = target_read_u32(target, addr, &value)) != ERROR_OK)\r
-               return ret;\r
-\r
-       value |= mask;\r
-\r
-       ret = target_write_u32(target, addr, value);\r
-\r
-       return ret;\r
-}\r
-\r
-#define S3C2440_GPACON 0x56000000\r
-#define S3C2440_GPADAT 0x56000004\r
-#define S3C2440_GPJCON 0x560000d0\r
-#define S3C2440_GPJDAT 0x560000d4\r
-\r
-static int s3c2440_set_gpio_to_output (mflash_gpio_num_t gpio)\r
-{\r
-       u32 data, mask, gpio_con;\r
-       target_t *target = mflash_bank->target;\r
-       int ret;\r
-\r
-       if (gpio.port[0] >= 'a' && gpio.port[0] <= 'h') {\r
-               gpio_con = S3C2440_GPACON + (gpio.port[0] - 'a') * 0x10;\r
-       } else if (gpio.port[0] == 'j') {\r
-               gpio_con = S3C2440_GPJCON;\r
-       } else {\r
-               LOG_ERROR("invalid port %d%s", gpio.num, gpio.port);\r
-               return ERROR_INVALID_ARGUMENTS;\r
-       }\r
-\r
-       ret = target_read_u32(target, gpio_con, &data);\r
-\r
-       if (ret == ERROR_OK) {\r
-               if (gpio.port[0] == 'a') {\r
-                       mask = 1 << gpio.num;\r
-                       data &= ~mask;\r
-               } else {\r
-                       mask = 3 << gpio.num * 2;\r
-                       data &= ~mask;\r
-                       data |= (1 << gpio.num * 2);\r
-               }\r
-\r
-               ret = target_write_u32(target, gpio_con, data);\r
-       }\r
-       return ret;\r
-}\r
-\r
-static int s3c2440_set_gpio_output_val (mflash_gpio_num_t gpio, u8 val)\r
-{\r
-       u32 data, mask, gpio_dat;\r
-       target_t *target = mflash_bank->target;\r
-       int ret;\r
-\r
-       if (gpio.port[0] >= 'a' && gpio.port[0] <= 'h') {\r
-               gpio_dat = S3C2440_GPADAT + (gpio.port[0] - 'a') * 0x10;\r
-       } else if (gpio.port[0] == 'j') {\r
-               gpio_dat = S3C2440_GPJDAT;\r
-       } else {\r
-               LOG_ERROR("invalid port %d%s", gpio.num, gpio.port);\r
-               return ERROR_INVALID_ARGUMENTS;\r
-       }\r
-\r
-       ret = target_read_u32(target, gpio_dat, &data);\r
-\r
-       if (ret == ERROR_OK) {\r
-               mask = 1 << gpio.num;\r
-               if (val)\r
-                       data |= mask;\r
-               else\r
-                       data &= ~mask;\r
-\r
-               ret = target_write_u32(target, gpio_dat, data);\r
-       }\r
-       return ret;\r
-}\r
-\r
-static int mflash_rst(u8 level)\r
-{\r
-       return mflash_bank->gpio_drv->set_gpio_output_val(mflash_bank->rst_pin, level);\r
-}\r
-\r
-static int mg_dump_task_reg (void)\r
-{\r
-       target_t *target = mflash_bank->target;\r
-       u32 address = mflash_bank->base + MG_REG_OFFSET + MG_REG_ERROR;\r
-       u8 value, i;\r
-       char *reg_name[9] = {\r
-               "error                  ",\r
-               "sector count           ",\r
-               "sector num (LBA  7- 0) ",\r
-               "cyl. low   (LBA 15- 8) ",\r
-               "cyl. high  (LBA 23-16) ",\r
-               "drv/head               ",\r
-               "status                 ",\r
-               "dev control            ",\r
-               "burst control          "\r
-       };\r
-\r
-       for (i = 0; i < 9; i++) {\r
-               target_read_u8(target, address + i * 2, &value);\r
-               LOG_INFO("%s : 0x%2.2x", reg_name[i], value);\r
-       }\r
-\r
-       return ERROR_OK;\r
-\r
-}\r
-static int mflash_init_gpio (void)\r
-{\r
-       mflash_gpio_drv_t *gpio_drv = mflash_bank->gpio_drv;\r
-\r
-       gpio_drv->set_gpio_to_output(mflash_bank->rst_pin);\r
-       gpio_drv->set_gpio_output_val(mflash_bank->rst_pin, 1);\r
-\r
-       if (mflash_bank->wp_pin.num != -1) {\r
-               gpio_drv->set_gpio_to_output(mflash_bank->wp_pin);\r
-               gpio_drv->set_gpio_output_val(mflash_bank->wp_pin, 1);\r
-       }\r
-\r
-       if (mflash_bank->dpd_pin.num != -1) {\r
-               gpio_drv->set_gpio_to_output(mflash_bank->dpd_pin);\r
-               gpio_drv->set_gpio_output_val(mflash_bank->dpd_pin, 1);\r
-       }\r
-\r
-       return ERROR_OK;\r
-}\r
-\r
-static int mg_dsk_wait(mg_io_type_wait wait, u32 time)\r
-{\r
-       u8 status, error;\r
-       target_t *target = mflash_bank->target;\r
-       u32 mg_task_reg = mflash_bank->base + MG_REG_OFFSET;\r
-       duration_t duration;\r
-       long long t=0;\r
-\r
-       duration_start_measure(&duration);\r
-\r
-    while (time) {\r
-\r
-       target_read_u8(target, mg_task_reg + MG_REG_STATUS, &status);\r
-\r
-       if (status & mg_io_rbit_status_busy)\r
-           {\r
-               if (wait == mg_io_wait_bsy)\r
-                      return ERROR_OK;\r
-           } else {\r
-               switch(wait)\r
-               {\r
-                   case mg_io_wait_not_bsy:\r
-                       return ERROR_OK;\r
-                   case mg_io_wait_rdy_noerr:\r
-                       if (status & mg_io_rbit_status_ready)\r
-                           return ERROR_OK;\r
-                       break;\r
-                   case mg_io_wait_drq_noerr:\r
-                       if (status & mg_io_rbit_status_data_req)\r
-                           return ERROR_OK;\r
-                       break;\r
-                   default:\r
-                       break;\r
-               }\r
-\r
-               // Now we check the error condition!\r
-               if (status & mg_io_rbit_status_error)\r
-               {\r
-                   target_read_u8(target, mg_task_reg + MG_REG_ERROR, &error);\r
-\r
-                if (error & mg_io_rbit_err_bad_sect_num) {\r
-                       LOG_ERROR("sector not found");\r
-                    return ERROR_FAIL;\r
-                }\r
-                else if (error & (mg_io_rbit_err_bad_block | mg_io_rbit_err_uncorrectable)) {\r
-                       LOG_ERROR("bad block");\r
-                    return ERROR_FAIL;\r
-                } else {\r
-                       LOG_ERROR("disk operation fail");\r
-                       return ERROR_FAIL;\r
-                   }\r
-               }\r
-\r
-               switch (wait)\r
-               {\r
-                   case mg_io_wait_rdy:\r
-                       if (status & mg_io_rbit_status_ready)\r
-                           return ERROR_OK;\r
-\r
-                   case mg_io_wait_drq:\r
-                       if (status & mg_io_rbit_status_data_req)\r
-                           return ERROR_OK;\r
-\r
-                   default:\r
-                       break;\r
-               }\r
-           }\r
-\r
-       duration_stop_measure(&duration, NULL);\r
-\r
-               t=duration.duration.tv_usec/1000;\r
-               t+=duration.duration.tv_sec*1000;\r
-\r
-               if (t > time)\r
-            break;\r
-    }\r
-\r
-    LOG_ERROR("timeout occured");\r
-    return ERROR_FAIL;\r
-}\r
-\r
-static int mg_dsk_srst(u8 on)\r
-{\r
-       target_t *target = mflash_bank->target;\r
-       u32 mg_task_reg = mflash_bank->base + MG_REG_OFFSET;\r
-       u8 value;\r
-       int ret;\r
-\r
-       if ((ret = target_read_u8(target, mg_task_reg + MG_REG_DRV_CTRL, &value)) != ERROR_OK)\r
-               return ret;\r
-\r
-       if(on) {\r
-               value |= (mg_io_rbit_devc_srst);\r
-       } else {\r
-               value &= ~mg_io_rbit_devc_srst;\r
-       }\r
-\r
-       ret = target_write_u8(target, mg_task_reg + MG_REG_DRV_CTRL, value);\r
-       return ret;\r
-}\r
-\r
-static int mg_dsk_io_cmd(u32 sect_num, u32 cnt, u8 cmd)\r
-{\r
-       target_t *target = mflash_bank->target;\r
-       u32 mg_task_reg = mflash_bank->base + MG_REG_OFFSET;\r
-       u8 value;\r
-\r
-       if (mg_dsk_wait(mg_io_wait_rdy_noerr, MG_OEM_DISK_WAIT_TIME_NORMAL) != ERROR_OK)\r
-               return ERROR_FAIL;\r
-\r
-       value = mg_io_rval_dev_drv_master | mg_io_rval_dev_lba_mode |((sect_num >> 24) & 0xf);\r
-\r
-       target_write_u8(target, mg_task_reg + MG_REG_DRV_HEAD, value);\r
-       target_write_u8(target, mg_task_reg + MG_REG_SECT_CNT, (u8)cnt);\r
-       target_write_u8(target, mg_task_reg + MG_REG_SECT_NUM, (u8)sect_num);\r
-       target_write_u8(target, mg_task_reg + MG_REG_CYL_LOW, (u8)(sect_num >> 8));\r
-       target_write_u8(target, mg_task_reg + MG_REG_CYL_HIGH, (u8)(sect_num >> 16));\r
-\r
-       target_write_u8(target, mg_task_reg + MG_REG_COMMAND, cmd);\r
-\r
-       return ERROR_OK;\r
-}\r
-\r
-static int mg_dsk_drv_info(void)\r
-{\r
-       target_t *target = mflash_bank->target;\r
-       u32 mg_buff = mflash_bank->base + MG_BUFFER_OFFSET;\r
-\r
-       if ( mg_dsk_io_cmd(0, 1, mg_io_cmd_identify) != ERROR_OK)\r
-               return ERROR_FAIL;\r
-\r
-       if ( mg_dsk_wait(mg_io_wait_drq, MG_OEM_DISK_WAIT_TIME_NORMAL) != ERROR_OK)\r
-               return ERROR_FAIL;\r
-\r
-       LOG_INFO("read drive info.");\r
-\r
-       if (! mflash_bank->drv_info)\r
-               mflash_bank->drv_info = malloc(sizeof(mg_drv_info_t));\r
-\r
-       target->type->read_memory(target, mg_buff, 2, sizeof(mg_io_type_drv_info) >> 1,\r
-                       (u8 *)&mflash_bank->drv_info->drv_id);\r
-\r
-       mflash_bank->drv_info->tot_sects = (u32)(mflash_bank->drv_info->drv_id.total_user_addressable_sectors_hi << 16)\r
-                                                                       + mflash_bank->drv_info->drv_id.total_user_addressable_sectors_lo;\r
-\r
-       target_write_u8(target, mflash_bank->base + MG_REG_OFFSET + MG_REG_COMMAND, mg_io_cmd_confirm_read);\r
-\r
-       return ERROR_OK;\r
-}\r
-\r
-static int mg_mflash_probe(void)\r
-{\r
-       mflash_bank->proved = 0;\r
-\r
-       mflash_init_gpio();\r
-\r
-       LOG_INFO("reset mflash");\r
-\r
-       mflash_rst(0);\r
-\r
-       if (mg_dsk_wait(mg_io_wait_bsy, MG_OEM_DISK_WAIT_TIME_LONG) != ERROR_OK)\r
-               return ERROR_FAIL;\r
-\r
-       mflash_rst(1);\r
-\r
-       if (mg_dsk_wait(mg_io_wait_not_bsy, MG_OEM_DISK_WAIT_TIME_LONG) != ERROR_OK)\r
-               return ERROR_FAIL;\r
-\r
-       mg_dsk_srst(1);\r
-\r
-       if (mg_dsk_wait(mg_io_wait_bsy, MG_OEM_DISK_WAIT_TIME_LONG) != ERROR_OK)\r
-               return ERROR_FAIL;\r
-\r
-       mg_dsk_srst(0);\r
-\r
-       if (mg_dsk_wait(mg_io_wait_not_bsy, MG_OEM_DISK_WAIT_TIME_LONG) != ERROR_OK)\r
-               return ERROR_FAIL;\r
-\r
-       if (mg_dsk_drv_info() != ERROR_OK)\r
-               return ERROR_FAIL;\r
-\r
-       mflash_bank->proved = 1;\r
-\r
-       return ERROR_OK;\r
-}\r
-\r
-static int mflash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
-       int ret;\r
-\r
-       ret = mg_mflash_probe();\r
-\r
-       if (ret == ERROR_OK) {\r
-               command_print(cmd_ctx, "mflash (total %u sectors) found at 0x%8.8x",\r
-                               mflash_bank->drv_info->tot_sects, mflash_bank->base );\r
-       }\r
-\r
-       return ret;\r
-}\r
-\r
-static int mg_mflash_do_read_sects(void *buff, u32 sect_num, u32 sect_cnt)\r
-{\r
-       u32 i, address;\r
-       int ret;\r
-       target_t *target = mflash_bank->target;\r
-       u8 *buff_ptr = buff;\r
-       duration_t duration;\r
-\r
-       if ( mg_dsk_io_cmd(sect_num, sect_cnt, mg_io_cmd_read) != ERROR_OK )\r
-               return ERROR_FAIL;\r
-\r
-       address = mflash_bank->base + MG_BUFFER_OFFSET;\r
-\r
-       duration_start_measure(&duration);\r
-\r
-       for (i = 0; i < sect_cnt; i++) {\r
-               mg_dsk_wait(mg_io_wait_drq, MG_OEM_DISK_WAIT_TIME_NORMAL);\r
-\r
-               target->type->read_memory(target, address, 2, MG_MFLASH_SECTOR_SIZE / 2, buff_ptr);\r
-               buff_ptr += MG_MFLASH_SECTOR_SIZE;\r
-\r
-               target_write_u8(target, mflash_bank->base + MG_REG_OFFSET + MG_REG_COMMAND, mg_io_cmd_confirm_read);\r
-\r
-               LOG_DEBUG("%u (0x%8.8x) sector read", sect_num + i, (sect_num + i) * MG_MFLASH_SECTOR_SIZE);\r
-\r
-               duration_stop_measure(&duration, NULL);\r
-\r
-               if ((duration.duration.tv_sec * 1000 + duration.duration.tv_usec / 1000) > 3000) {\r
-                       LOG_INFO("read %u'th sectors", sect_num + i);\r
-                       duration_start_measure(&duration);\r
-               }\r
-       }\r
-\r
-       ret = mg_dsk_wait(mg_io_wait_rdy, MG_OEM_DISK_WAIT_TIME_NORMAL);\r
-\r
-       return ret;\r
-}\r
-\r
-static int mg_mflash_read_sects(void *buff, u32 sect_num, u32 sect_cnt)\r
-{\r
-       u32 quotient, residue, i;\r
-       u8 *buff_ptr = buff;\r
-\r
-       quotient = sect_cnt >> 8;\r
-       residue = sect_cnt % 256;\r
-\r
-       for (i = 0; i < quotient; i++) {\r
-               LOG_DEBUG("sect num : %u buff : 0x%8.8x", sect_num, (u32)buff_ptr);\r
-               mg_mflash_do_read_sects(buff_ptr, sect_num, 256);\r
-               sect_num += 256;\r
-               buff_ptr += 256 * MG_MFLASH_SECTOR_SIZE;\r
-       }\r
-\r
-       if (residue) {\r
-               LOG_DEBUG("sect num : %u buff : %8.8x", sect_num, (u32)buff_ptr);\r
-               mg_mflash_do_read_sects(buff_ptr, sect_num, residue);\r
-       }\r
-\r
-       return ERROR_OK;\r
-}\r
-\r
-static int mg_mflash_do_write_sects(void *buff, u32 sect_num, u32 sect_cnt)\r
-{\r
-       u32 i, address;\r
-       int ret;\r
-       target_t *target = mflash_bank->target;\r
-       u8 *buff_ptr = buff;\r
-       duration_t duration;\r
-\r
-       if ( mg_dsk_io_cmd(sect_num, sect_cnt, mg_io_cmd_write) != ERROR_OK ) {\r
-               LOG_ERROR("mg_io_cmd_write fail");\r
-               return ERROR_FAIL;\r
-       }\r
-\r
-       address = mflash_bank->base + MG_BUFFER_OFFSET;\r
-\r
-       duration_start_measure(&duration);\r
-\r
-       for (i = 0; i < sect_cnt; i++) {\r
-               ret = mg_dsk_wait(mg_io_wait_drq, MG_OEM_DISK_WAIT_TIME_NORMAL);\r
-               if (ret != ERROR_OK)\r
-                       LOG_ERROR("mg_io_wait_drq time out");\r
-\r
-               ret = target->type->write_memory(target, address, 2, MG_MFLASH_SECTOR_SIZE / 2, buff_ptr);\r
-               if (ret != ERROR_OK)\r
-                       LOG_ERROR("mem write error");\r
-               buff_ptr += MG_MFLASH_SECTOR_SIZE;\r
-\r
-               ret = target_write_u8(target, mflash_bank->base + MG_REG_OFFSET + MG_REG_COMMAND, mg_io_cmd_confirm_write);\r
-               if (ret != ERROR_OK)\r
-                       LOG_ERROR("mg_io_cmd_confirm_write error");\r
-\r
-               LOG_DEBUG("%u (0x%8.8x) sector write", sect_num + i, (sect_num + i) * MG_MFLASH_SECTOR_SIZE);\r
-\r
-               duration_stop_measure(&duration, NULL);\r
-\r
-               if ((duration.duration.tv_sec * 1000 + duration.duration.tv_usec / 1000) > 3000) {\r
-                       LOG_INFO("wrote %u'th sectors", sect_num + i);\r
-                       duration_start_measure(&duration);\r
-               }\r
-       }\r
-\r
-       ret = mg_dsk_wait(mg_io_wait_rdy, MG_OEM_DISK_WAIT_TIME_NORMAL);\r
-\r
-       return ret;\r
-}\r
-\r
-static int mg_mflash_write_sects(void *buff, u32 sect_num, u32 sect_cnt)\r
-{\r
-       u32 quotient, residue, i;\r
-       u8 *buff_ptr = buff;\r
-\r
-       quotient = sect_cnt >> 8;\r
-       residue = sect_cnt % 256;\r
-\r
-       for (i = 0; i < quotient; i++) {\r
-               LOG_DEBUG("sect num : %u buff : %8.8x", sect_num, (u32)buff_ptr);\r
-               mg_mflash_do_write_sects(buff_ptr, sect_num, 256);\r
-               sect_num += 256;\r
-               buff_ptr += 256 * MG_MFLASH_SECTOR_SIZE;\r
-       }\r
-\r
-       if (residue) {\r
-               LOG_DEBUG("sect num : %u buff : %8.8x", sect_num, (u32)buff_ptr);\r
-               mg_mflash_do_write_sects(buff_ptr, sect_num, residue);\r
-       }\r
-\r
-       return ERROR_OK;\r
-}\r
-\r
-static int mg_mflash_read (u32 addr, u8 *buff, u32 len)\r
-{\r
-       u8 *sect_buff, *buff_ptr = buff;\r
-       u32 cur_addr, next_sec_addr, end_addr, cnt, sect_num;\r
-\r
-       cnt = 0;\r
-       cur_addr = addr;\r
-       end_addr = addr + len;\r
-\r
-       sect_buff = malloc(MG_MFLASH_SECTOR_SIZE);\r
-\r
-       if (cur_addr & MG_MFLASH_SECTOR_SIZE_MASK) {\r
-\r
-               next_sec_addr = (cur_addr + MG_MFLASH_SECTOR_SIZE) & ~MG_MFLASH_SECTOR_SIZE_MASK;\r
-               sect_num = cur_addr >> MG_MFLASH_SECTOR_SIZE_SHIFT;\r
-               mg_mflash_read_sects(sect_buff, sect_num, 1);\r
-\r
-               if (end_addr < next_sec_addr) {\r
-                       memcpy(buff_ptr, sect_buff + (cur_addr & MG_MFLASH_SECTOR_SIZE_MASK), end_addr - cur_addr);\r
-                       LOG_DEBUG("copies %u byte from sector offset 0x%8.8x", end_addr - cur_addr, cur_addr);\r
-                       cur_addr = end_addr;\r
-               } else {\r
-                       memcpy(buff_ptr, sect_buff + (cur_addr & MG_MFLASH_SECTOR_SIZE_MASK), next_sec_addr - cur_addr);\r
-                       LOG_DEBUG("copies %u byte from sector offset 0x%8.8x", next_sec_addr - cur_addr, cur_addr);\r
-                       buff_ptr += (next_sec_addr - cur_addr);\r
-                       cur_addr = next_sec_addr;\r
-               }\r
-       }\r
-\r
-       if (cur_addr < end_addr) {\r
-\r
-               sect_num = cur_addr >> MG_MFLASH_SECTOR_SIZE_SHIFT;\r
-               next_sec_addr = cur_addr + MG_MFLASH_SECTOR_SIZE;\r
-\r
-               while (next_sec_addr <= end_addr) {\r
-                       cnt++;\r
-                       next_sec_addr += MG_MFLASH_SECTOR_SIZE;\r
-               }\r
-\r
-               if (cnt)\r
-                       mg_mflash_read_sects(buff_ptr, sect_num, cnt);\r
-\r
-               buff_ptr += cnt * MG_MFLASH_SECTOR_SIZE;\r
-               cur_addr += cnt * MG_MFLASH_SECTOR_SIZE;\r
-\r
-               if (cur_addr < end_addr) {\r
-\r
-                       sect_num = cur_addr >> MG_MFLASH_SECTOR_SIZE_SHIFT;\r
-                       mg_mflash_read_sects(sect_buff, sect_num, 1);\r
-                       memcpy(buff_ptr, sect_buff, end_addr - cur_addr);\r
-                       LOG_DEBUG("copies %u byte", end_addr - cur_addr);\r
-\r
-               }\r
-\r
-       }\r
-\r
-       free(sect_buff);\r
-\r
-       return ERROR_OK;\r
-}\r
-\r
-static int mg_mflash_write(u32 addr, u8 *buff, u32 len)\r
-{\r
-       u8 *sect_buff, *buff_ptr = buff;\r
-       u32 cur_addr, next_sec_addr, end_addr, cnt, sect_num;\r
-\r
-       cnt = 0;\r
-       cur_addr = addr;\r
-       end_addr = addr + len;\r
-\r
-       sect_buff = malloc(MG_MFLASH_SECTOR_SIZE);\r
-\r
-       if (cur_addr & MG_MFLASH_SECTOR_SIZE_MASK) {\r
-\r
-               next_sec_addr = (cur_addr + MG_MFLASH_SECTOR_SIZE) & ~MG_MFLASH_SECTOR_SIZE_MASK;\r
-               sect_num = cur_addr >> MG_MFLASH_SECTOR_SIZE_SHIFT;\r
-               mg_mflash_read_sects(sect_buff, sect_num, 1);\r
-\r
-               if (end_addr < next_sec_addr) {\r
-                       memcpy(sect_buff + (cur_addr & MG_MFLASH_SECTOR_SIZE_MASK), buff_ptr, end_addr - cur_addr);\r
-                       LOG_DEBUG("copies %u byte to sector offset 0x%8.8x", end_addr - cur_addr, cur_addr);\r
-                       cur_addr = end_addr;\r
-               } else {\r
-                       memcpy(sect_buff + (cur_addr & MG_MFLASH_SECTOR_SIZE_MASK), buff_ptr, next_sec_addr - cur_addr);\r
-                       LOG_DEBUG("copies %u byte to sector offset 0x%8.8x", next_sec_addr - cur_addr, cur_addr);\r
-                       buff_ptr += (next_sec_addr - cur_addr);\r
-                       cur_addr = next_sec_addr;\r
-               }\r
-\r
-               mg_mflash_write_sects(sect_buff, sect_num, 1);\r
-\r
-       }\r
-\r
-       if (cur_addr < end_addr) {\r
-\r
-               sect_num = cur_addr >> MG_MFLASH_SECTOR_SIZE_SHIFT;\r
-               next_sec_addr = cur_addr + MG_MFLASH_SECTOR_SIZE;\r
-\r
-               while (next_sec_addr <= end_addr) {\r
-                       cnt++;\r
-                       next_sec_addr += MG_MFLASH_SECTOR_SIZE;\r
-               }\r
-\r
-               if (cnt)\r
-                       mg_mflash_write_sects(buff_ptr, sect_num, cnt);\r
-\r
-               buff_ptr += cnt * MG_MFLASH_SECTOR_SIZE;\r
-               cur_addr += cnt * MG_MFLASH_SECTOR_SIZE;\r
-\r
-               if (cur_addr < end_addr) {\r
-\r
-                       sect_num = cur_addr >> MG_MFLASH_SECTOR_SIZE_SHIFT;\r
-                       mg_mflash_read_sects(sect_buff, sect_num, 1);\r
-                       memcpy(sect_buff, buff_ptr, end_addr - cur_addr);\r
-                       LOG_DEBUG("copies %u byte", end_addr - cur_addr);\r
-                       mg_mflash_write_sects(sect_buff, sect_num, 1);\r
-\r
-               }\r
-\r
-       }\r
-\r
-       free(sect_buff);\r
-\r
-       return ERROR_OK;\r
-}\r
-\r
-static int mflash_write_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
-       u32 address, buf_cnt;\r
-       u8 *buffer;\r
-       // TODO : multi-bank support, large file support\r
-       fileio_t fileio;\r
-       duration_t duration;\r
-       char *duration_text;\r
-       int ret;\r
-\r
-       if (argc != 3) {\r
-               return ERROR_COMMAND_SYNTAX_ERROR;\r
-       }\r
-\r
-       address = strtoul(args[2], NULL, 0);\r
-\r
-       if (! mflash_bank->proved ) {\r
-               mg_mflash_probe();\r
-       }\r
-\r
-\r
-       if (fileio_open(&fileio, args[1], FILEIO_READ, FILEIO_BINARY) != ERROR_OK) {\r
-               return ERROR_FAIL;\r
-       }\r
-\r
-       buffer = malloc(fileio.size);\r
-\r
-       if (fileio_read(&fileio, fileio.size, buffer, &buf_cnt) != ERROR_OK)\r
-       {\r
-               free(buffer);\r
-               fileio_close(&fileio);\r
-               return ERROR_FAIL;\r
-       }\r
-\r
-       duration_start_measure(&duration);\r
-\r
-       ret = mg_mflash_write(address, buffer, (u32)fileio.size);\r
-\r
-       duration_stop_measure(&duration, &duration_text);\r
-\r
-       command_print(cmd_ctx, "wrote %lli byte from file %s in %s (%f kB/s)",\r
-               fileio.size, args[1], duration_text,\r
-               (float)fileio.size / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));\r
-\r
-       free(duration_text);\r
-\r
-       fileio_close(&fileio);\r
-\r
-       free(buffer);\r
-\r
-       return ERROR_OK;\r
-}\r
-\r
-static int mflash_dump_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
-       u32 address, size_written, size;\r
-       u8 *buffer;\r
-       // TODO : multi-bank support\r
-       fileio_t fileio;\r
-       duration_t duration;\r
-       char *duration_text;\r
-\r
-       if (argc != 4) {\r
-               return ERROR_COMMAND_SYNTAX_ERROR;\r
-       }\r
-\r
-       address = strtoul(args[2], NULL, 0);\r
-       size = strtoul(args[3], NULL, 0);\r
-\r
-       if (! mflash_bank->proved ) {\r
-                       mg_mflash_probe();\r
-       }\r
-\r
-       if (fileio_open(&fileio, args[1], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK) {\r
-               return ERROR_FAIL;\r
-       }\r
-\r
-       buffer = malloc(size);\r
-\r
-       duration_start_measure(&duration);\r
-\r
-       mg_mflash_read(address, buffer, size);\r
-\r
-       duration_stop_measure(&duration, &duration_text);\r
-\r
-       fileio_write(&fileio, size, buffer, &size_written);\r
-\r
-       command_print(cmd_ctx, "dump image (address 0x%8.8x size %u) to file %s in %s (%f kB/s)",\r
-                               address, size, args[1], duration_text,\r
-                               (float)size / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));\r
-\r
-       free(duration_text);\r
-\r
-       fileio_close(&fileio);\r
-\r
-       free(buffer);\r
-\r
-       return ERROR_OK;\r
-}\r
-\r
-int mflash_init_drivers(struct command_context_s *cmd_ctx)\r
-{\r
-       if (mflash_bank) {\r
-               register_command(cmd_ctx, mflash_cmd, "probe", mflash_probe_command, COMMAND_EXEC, NULL);\r
-               register_command(cmd_ctx, mflash_cmd, "write", mflash_write_command, COMMAND_EXEC,\r
-                               "mflash write <num> <file> <address>");\r
-               register_command(cmd_ctx, mflash_cmd, "dump", mflash_dump_command, COMMAND_EXEC,\r
-                                               "mflash dump <num> <file> <address> <size>");\r
-       }\r
-\r
-       return ERROR_OK;\r
-}\r
-\r
-static int mflash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
-       target_t *target;\r
-       char *str;\r
-       int i;\r
-\r
-       if (argc < 8)\r
-       {\r
-               return ERROR_COMMAND_SYNTAX_ERROR;\r
-       }\r
-\r
-       if ((target = get_target_by_num(strtoul(args[7], NULL, 0))) == NULL)\r
-       {\r
-               LOG_ERROR("target %lu not defined", strtoul(args[7], NULL, 0));\r
-               return ERROR_FAIL;\r
-       }\r
-\r
-       mflash_bank = calloc(sizeof(mflash_bank_t), 1);\r
-       mflash_bank->base = strtoul(args[1], NULL, 0);\r
-       mflash_bank->chip_width = strtoul(args[2], NULL, 0);\r
-       mflash_bank->bus_width = strtoul(args[3], NULL, 0);\r
-       mflash_bank->rst_pin.num = strtoul(args[4], &str, 0);\r
-       if (*str)\r
-               mflash_bank->rst_pin.port[0] = (u16)tolower(str[0]);\r
-       mflash_bank->wp_pin.num = strtol(args[5], &str, 0);\r
-       if (*str)\r
-               mflash_bank->wp_pin.port[0] = (u16)tolower(str[0]);\r
-       mflash_bank->dpd_pin.num = strtol(args[6], &str, 0);\r
-       if (*str)\r
-               mflash_bank->dpd_pin.port[0] = (u16)tolower(str[0]);\r
-\r
-       mflash_bank->target = target;\r
-\r
-       for (i = 0; mflash_gpio[i] ; i++) {\r
-               if (! strcmp(mflash_gpio[i]->name, args[0])) {\r
-                       mflash_bank->gpio_drv = mflash_gpio[i];\r
-               }\r
-       }\r
-\r
-       if (! mflash_bank->gpio_drv) {\r
-               LOG_ERROR("%s is unsupported soc", args[0]);\r
-               return ERROR_INVALID_ARGUMENTS;\r
-       }\r
-\r
-       return ERROR_OK;\r
-}\r
-\r
-int mflash_register_commands(struct command_context_s *cmd_ctx)\r
-{\r
-       mflash_cmd = register_command(cmd_ctx, NULL, "mflash", NULL, COMMAND_ANY, NULL);\r
-       register_command(cmd_ctx, mflash_cmd, "bank", mflash_bank_command, COMMAND_CONFIG,\r
-                       "mflash bank <soc> <base> <chip_width> <bus_width> <RST pin> <WP pin> <DPD pin> <target #>");\r
-       return ERROR_OK;\r
-}\r
+/***************************************************************************
+ *   Copyright (C) 2007-2008 by unsik Kim <donari75@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.             *
+ ***************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <ctype.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <inttypes.h>
+
+#include "command.h"
+#include "log.h"
+#include "target.h"
+#include "time_support.h"
+#include "fileio.h"
+#include "mflash.h"
+
+static int s3c2440_set_gpio_to_output (mflash_gpio_num_t gpio);
+static int s3c2440_set_gpio_output_val (mflash_gpio_num_t gpio, u8 val);
+static int pxa270_set_gpio_to_output (mflash_gpio_num_t gpio);
+static int pxa270_set_gpio_output_val (mflash_gpio_num_t gpio, u8 val);
+
+static command_t *mflash_cmd;
+
+static mflash_bank_t *mflash_bank;
+
+static mflash_gpio_drv_t pxa270_gpio = {
+       .name = "pxa270",
+       .set_gpio_to_output = pxa270_set_gpio_to_output,
+       .set_gpio_output_val = pxa270_set_gpio_output_val
+};
+
+static mflash_gpio_drv_t s3c2440_gpio = {
+       .name = "s3c2440",
+       .set_gpio_to_output = s3c2440_set_gpio_to_output,
+       .set_gpio_output_val = s3c2440_set_gpio_output_val
+};
+
+static mflash_gpio_drv_t *mflash_gpio[] =
+{
+               &pxa270_gpio,
+               &s3c2440_gpio,
+               NULL
+};
+
+#define PXA270_GAFR0_L 0x40E00054
+#define PXA270_GAFR3_U 0x40E00070
+#define PXA270_GAFR3_U_RESERVED_BITS  0xfffc0000u
+#define PXA270_GPDR0 0x40E0000C
+#define PXA270_GPDR3 0x40E0010C
+#define PXA270_GPDR3_RESERVED_BITS  0xfe000000u
+#define PXA270_GPSR0 0x40E00018
+#define PXA270_GPCR0 0x40E00024
+
+static int pxa270_set_gpio_to_output (mflash_gpio_num_t gpio)
+{
+       u32 addr, value, mask;
+       target_t *target = mflash_bank->target;
+       int ret;
+
+       // remove alternate function.
+       mask = 0x3u << (gpio.num & 0xF)*2;
+
+       addr = PXA270_GAFR0_L + (gpio.num >> 4) * 4;
+
+       if ((ret = target_read_u32(target, addr, &value)) != 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)
+               return ret;
+
+       // set direction to output
+       mask = 0x1u << (gpio.num & 0x1F);
+
+       addr = PXA270_GPDR0 + (gpio.num >> 5) * 4;
+
+       if ((ret = target_read_u32(target, addr, &value)) != ERROR_OK)
+               return ret;
+
+       value |= mask;
+       if (addr == PXA270_GPDR3)
+               value &= ~PXA270_GPDR3_RESERVED_BITS;
+
+       ret = target_write_u32(target, addr, value);
+       return ret;
+}
+
+static int pxa270_set_gpio_output_val (mflash_gpio_num_t gpio, u8 val)
+{
+       u32 addr, value, mask;
+       target_t *target = mflash_bank->target;
+       int ret;
+
+       mask = 0x1u << (gpio.num & 0x1F);
+
+       if (val) {
+               addr = PXA270_GPSR0 + (gpio.num >> 5) * 4;
+       } else {
+               addr = PXA270_GPCR0 + (gpio.num >> 5) * 4;
+       }
+
+       if ((ret = target_read_u32(target, addr, &value)) != ERROR_OK)
+               return ret;
+
+       value |= mask;
+
+       ret = target_write_u32(target, addr, value);
+
+       return ret;
+}
+
+#define S3C2440_GPACON 0x56000000
+#define S3C2440_GPADAT 0x56000004
+#define S3C2440_GPJCON 0x560000d0
+#define S3C2440_GPJDAT 0x560000d4
+
+static int s3c2440_set_gpio_to_output (mflash_gpio_num_t gpio)
+{
+       u32 data, mask, gpio_con;
+       target_t *target = mflash_bank->target;
+       int ret;
+
+       if (gpio.port[0] >= 'a' && gpio.port[0] <= 'h') {
+               gpio_con = S3C2440_GPACON + (gpio.port[0] - 'a') * 0x10;
+       } else if (gpio.port[0] == 'j') {
+               gpio_con = S3C2440_GPJCON;
+       } else {
+               LOG_ERROR("invalid port %d%s", gpio.num, gpio.port);
+               return ERROR_INVALID_ARGUMENTS;
+       }
+
+       ret = target_read_u32(target, gpio_con, &data);
+
+       if (ret == ERROR_OK) {
+               if (gpio.port[0] == 'a') {
+                       mask = 1 << gpio.num;
+                       data &= ~mask;
+               } else {
+                       mask = 3 << gpio.num * 2;
+                       data &= ~mask;
+                       data |= (1 << gpio.num * 2);
+               }
+
+               ret = target_write_u32(target, gpio_con, data);
+       }
+       return ret;
+}
+
+static int s3c2440_set_gpio_output_val (mflash_gpio_num_t gpio, u8 val)
+{
+       u32 data, mask, gpio_dat;
+       target_t *target = mflash_bank->target;
+       int ret;
+
+       if (gpio.port[0] >= 'a' && gpio.port[0] <= 'h') {
+               gpio_dat = S3C2440_GPADAT + (gpio.port[0] - 'a') * 0x10;
+       } else if (gpio.port[0] == 'j') {
+               gpio_dat = S3C2440_GPJDAT;
+       } else {
+               LOG_ERROR("invalid port %d%s", gpio.num, gpio.port);
+               return ERROR_INVALID_ARGUMENTS;
+       }
+
+       ret = target_read_u32(target, gpio_dat, &data);
+
+       if (ret == ERROR_OK) {
+               mask = 1 << gpio.num;
+               if (val)
+                       data |= mask;
+               else
+                       data &= ~mask;
+
+               ret = target_write_u32(target, gpio_dat, data);
+       }
+       return ret;
+}
+
+static int mflash_rst(u8 level)
+{
+       return mflash_bank->gpio_drv->set_gpio_output_val(mflash_bank->rst_pin, level);
+}
+
+static int mg_dump_task_reg (void)
+{
+       target_t *target = mflash_bank->target;
+       u32 address = mflash_bank->base + MG_REG_OFFSET + MG_REG_ERROR;
+       u8 value, i;
+       char *reg_name[9] = {
+               "error                  ",
+               "sector count           ",
+               "sector num (LBA  7- 0) ",
+               "cyl. low   (LBA 15- 8) ",
+               "cyl. high  (LBA 23-16) ",
+               "drv/head               ",
+               "status                 ",
+               "dev control            ",
+               "burst control          "
+       };
+
+       for (i = 0; i < 9; i++) {
+               target_read_u8(target, address + i * 2, &value);
+               LOG_INFO("%s : 0x%2.2x", reg_name[i], value);
+       }
+
+       return ERROR_OK;
+
+}
+static int mflash_init_gpio (void)
+{
+       mflash_gpio_drv_t *gpio_drv = mflash_bank->gpio_drv;
+
+       gpio_drv->set_gpio_to_output(mflash_bank->rst_pin);
+       gpio_drv->set_gpio_output_val(mflash_bank->rst_pin, 1);
+
+       if (mflash_bank->wp_pin.num != -1) {
+               gpio_drv->set_gpio_to_output(mflash_bank->wp_pin);
+               gpio_drv->set_gpio_output_val(mflash_bank->wp_pin, 1);
+       }
+
+       if (mflash_bank->dpd_pin.num != -1) {
+               gpio_drv->set_gpio_to_output(mflash_bank->dpd_pin);
+               gpio_drv->set_gpio_output_val(mflash_bank->dpd_pin, 1);
+       }
+
+       return ERROR_OK;
+}
+
+static int mg_dsk_wait(mg_io_type_wait wait, u32 time)
+{
+       u8 status, error;
+       target_t *target = mflash_bank->target;
+       u32 mg_task_reg = mflash_bank->base + MG_REG_OFFSET;
+       duration_t duration;
+       long long t=0;
+
+       duration_start_measure(&duration);
+
+    while (time) {
+
+       target_read_u8(target, mg_task_reg + MG_REG_STATUS, &status);
+
+       if (status & mg_io_rbit_status_busy)
+           {
+               if (wait == mg_io_wait_bsy)
+                      return ERROR_OK;
+           } else {
+               switch(wait)
+               {
+                   case mg_io_wait_not_bsy:
+                       return ERROR_OK;
+                   case mg_io_wait_rdy_noerr:
+                       if (status & mg_io_rbit_status_ready)
+                           return ERROR_OK;
+                       break;
+                   case mg_io_wait_drq_noerr:
+                       if (status & mg_io_rbit_status_data_req)
+                           return ERROR_OK;
+                       break;
+                   default:
+                       break;
+               }
+
+               // Now we check the error condition!
+               if (status & mg_io_rbit_status_error)
+               {
+                   target_read_u8(target, mg_task_reg + MG_REG_ERROR, &error);
+
+                if (error & mg_io_rbit_err_bad_sect_num) {
+                       LOG_ERROR("sector not found");
+                    return ERROR_FAIL;
+                }
+                else if (error & (mg_io_rbit_err_bad_block | mg_io_rbit_err_uncorrectable)) {
+                       LOG_ERROR("bad block");
+                    return ERROR_FAIL;
+                } else {
+                       LOG_ERROR("disk operation fail");
+                       return ERROR_FAIL;
+                   }
+               }
+
+               switch (wait)
+               {
+                   case mg_io_wait_rdy:
+                       if (status & mg_io_rbit_status_ready)
+                           return ERROR_OK;
+
+                   case mg_io_wait_drq:
+                       if (status & mg_io_rbit_status_data_req)
+                           return ERROR_OK;
+
+                   default:
+                       break;
+               }
+           }
+
+       duration_stop_measure(&duration, NULL);
+
+               t=duration.duration.tv_usec/1000;
+               t+=duration.duration.tv_sec*1000;
+
+               if (t > time)
+            break;
+    }
+
+    LOG_ERROR("timeout occured");
+    return ERROR_FAIL;
+}
+
+static int mg_dsk_srst(u8 on)
+{
+       target_t *target = mflash_bank->target;
+       u32 mg_task_reg = mflash_bank->base + MG_REG_OFFSET;
+       u8 value;
+       int ret;
+
+       if ((ret = target_read_u8(target, mg_task_reg + MG_REG_DRV_CTRL, &value)) != ERROR_OK)
+               return ret;
+
+       if(on) {
+               value |= (mg_io_rbit_devc_srst);
+       } else {
+               value &= ~mg_io_rbit_devc_srst;
+       }
+
+       ret = target_write_u8(target, mg_task_reg + MG_REG_DRV_CTRL, value);
+       return ret;
+}
+
+static int mg_dsk_io_cmd(u32 sect_num, u32 cnt, u8 cmd)
+{
+       target_t *target = mflash_bank->target;
+       u32 mg_task_reg = mflash_bank->base + MG_REG_OFFSET;
+       u8 value;
+
+       if (mg_dsk_wait(mg_io_wait_rdy_noerr, MG_OEM_DISK_WAIT_TIME_NORMAL) != ERROR_OK)
+               return ERROR_FAIL;
+
+       value = mg_io_rval_dev_drv_master | mg_io_rval_dev_lba_mode |((sect_num >> 24) & 0xf);
+
+       target_write_u8(target, mg_task_reg + MG_REG_DRV_HEAD, value);
+       target_write_u8(target, mg_task_reg + MG_REG_SECT_CNT, (u8)cnt);
+       target_write_u8(target, mg_task_reg + MG_REG_SECT_NUM, (u8)sect_num);
+       target_write_u8(target, mg_task_reg + MG_REG_CYL_LOW, (u8)(sect_num >> 8));
+       target_write_u8(target, mg_task_reg + MG_REG_CYL_HIGH, (u8)(sect_num >> 16));
+
+       target_write_u8(target, mg_task_reg + MG_REG_COMMAND, cmd);
+
+       return ERROR_OK;
+}
+
+static int mg_dsk_drv_info(void)
+{
+       target_t *target = mflash_bank->target;
+       u32 mg_buff = mflash_bank->base + MG_BUFFER_OFFSET;
+
+       if ( mg_dsk_io_cmd(0, 1, mg_io_cmd_identify) != ERROR_OK)
+               return ERROR_FAIL;
+
+       if ( mg_dsk_wait(mg_io_wait_drq, MG_OEM_DISK_WAIT_TIME_NORMAL) != ERROR_OK)
+               return ERROR_FAIL;
+
+       LOG_INFO("read drive info.");
+
+       if (! mflash_bank->drv_info)
+               mflash_bank->drv_info = malloc(sizeof(mg_drv_info_t));
+
+       target->type->read_memory(target, mg_buff, 2, sizeof(mg_io_type_drv_info) >> 1,
+                       (u8 *)&mflash_bank->drv_info->drv_id);
+
+       mflash_bank->drv_info->tot_sects = (u32)(mflash_bank->drv_info->drv_id.total_user_addressable_sectors_hi << 16)
+                                                                       + mflash_bank->drv_info->drv_id.total_user_addressable_sectors_lo;
+
+       target_write_u8(target, mflash_bank->base + MG_REG_OFFSET + MG_REG_COMMAND, mg_io_cmd_confirm_read);
+
+       return ERROR_OK;
+}
+
+static int mg_mflash_probe(void)
+{
+       mflash_bank->proved = 0;
+
+       mflash_init_gpio();
+
+       LOG_INFO("reset mflash");
+
+       mflash_rst(0);
+
+       if (mg_dsk_wait(mg_io_wait_bsy, MG_OEM_DISK_WAIT_TIME_LONG) != ERROR_OK)
+               return ERROR_FAIL;
+
+       mflash_rst(1);
+
+       if (mg_dsk_wait(mg_io_wait_not_bsy, MG_OEM_DISK_WAIT_TIME_LONG) != ERROR_OK)
+               return ERROR_FAIL;
+
+       mg_dsk_srst(1);
+
+       if (mg_dsk_wait(mg_io_wait_bsy, MG_OEM_DISK_WAIT_TIME_LONG) != ERROR_OK)
+               return ERROR_FAIL;
+
+       mg_dsk_srst(0);
+
+       if (mg_dsk_wait(mg_io_wait_not_bsy, MG_OEM_DISK_WAIT_TIME_LONG) != ERROR_OK)
+               return ERROR_FAIL;
+
+       if (mg_dsk_drv_info() != ERROR_OK)
+               return ERROR_FAIL;
+
+       mflash_bank->proved = 1;
+
+       return ERROR_OK;
+}
+
+static int mflash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+       int ret;
+
+       ret = mg_mflash_probe();
+
+       if (ret == ERROR_OK) {
+               command_print(cmd_ctx, "mflash (total %u sectors) found at 0x%8.8x",
+                               mflash_bank->drv_info->tot_sects, mflash_bank->base );
+       }
+
+       return ret;
+}
+
+static int mg_mflash_do_read_sects(void *buff, u32 sect_num, u32 sect_cnt)
+{
+       u32 i, address;
+       int ret;
+       target_t *target = mflash_bank->target;
+       u8 *buff_ptr = buff;
+       duration_t duration;
+
+       if ( mg_dsk_io_cmd(sect_num, sect_cnt, mg_io_cmd_read) != ERROR_OK )
+               return ERROR_FAIL;
+
+       address = mflash_bank->base + MG_BUFFER_OFFSET;
+
+       duration_start_measure(&duration);
+
+       for (i = 0; i < sect_cnt; i++) {
+               mg_dsk_wait(mg_io_wait_drq, MG_OEM_DISK_WAIT_TIME_NORMAL);
+
+               target->type->read_memory(target, address, 2, MG_MFLASH_SECTOR_SIZE / 2, buff_ptr);
+               buff_ptr += MG_MFLASH_SECTOR_SIZE;
+
+               target_write_u8(target, mflash_bank->base + MG_REG_OFFSET + MG_REG_COMMAND, mg_io_cmd_confirm_read);
+
+               LOG_DEBUG("%u (0x%8.8x) sector read", sect_num + i, (sect_num + i) * MG_MFLASH_SECTOR_SIZE);
+
+               duration_stop_measure(&duration, NULL);
+
+               if ((duration.duration.tv_sec * 1000 + duration.duration.tv_usec / 1000) > 3000) {
+                       LOG_INFO("read %u'th sectors", sect_num + i);
+                       duration_start_measure(&duration);
+               }
+       }
+
+       ret = mg_dsk_wait(mg_io_wait_rdy, MG_OEM_DISK_WAIT_TIME_NORMAL);
+
+       return ret;
+}
+
+static int mg_mflash_read_sects(void *buff, u32 sect_num, u32 sect_cnt)
+{
+       u32 quotient, residue, i;
+       u8 *buff_ptr = buff;
+
+       quotient = sect_cnt >> 8;
+       residue = sect_cnt % 256;
+
+       for (i = 0; i < quotient; i++) {
+               LOG_DEBUG("sect num : %u buff : 0x%8.8x", sect_num, (u32)buff_ptr);
+               mg_mflash_do_read_sects(buff_ptr, sect_num, 256);
+               sect_num += 256;
+               buff_ptr += 256 * MG_MFLASH_SECTOR_SIZE;
+       }
+
+       if (residue) {
+               LOG_DEBUG("sect num : %u buff : %8.8x", sect_num, (u32)buff_ptr);
+               mg_mflash_do_read_sects(buff_ptr, sect_num, residue);
+       }
+
+       return ERROR_OK;
+}
+
+static int mg_mflash_do_write_sects(void *buff, u32 sect_num, u32 sect_cnt)
+{
+       u32 i, address;
+       int ret;
+       target_t *target = mflash_bank->target;
+       u8 *buff_ptr = buff;
+       duration_t duration;
+
+       if ( mg_dsk_io_cmd(sect_num, sect_cnt, mg_io_cmd_write) != ERROR_OK ) {
+               LOG_ERROR("mg_io_cmd_write fail");
+               return ERROR_FAIL;
+       }
+
+       address = mflash_bank->base + MG_BUFFER_OFFSET;
+
+       duration_start_measure(&duration);
+
+       for (i = 0; i < sect_cnt; i++) {
+               ret = mg_dsk_wait(mg_io_wait_drq, MG_OEM_DISK_WAIT_TIME_NORMAL);
+               if (ret != ERROR_OK)
+                       LOG_ERROR("mg_io_wait_drq time out");
+
+               ret = target->type->write_memory(target, address, 2, MG_MFLASH_SECTOR_SIZE / 2, buff_ptr);
+               if (ret != ERROR_OK)
+                       LOG_ERROR("mem write error");
+               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);
+               if (ret != ERROR_OK)
+                       LOG_ERROR("mg_io_cmd_confirm_write error");
+
+               LOG_DEBUG("%u (0x%8.8x) sector write", sect_num + i, (sect_num + i) * MG_MFLASH_SECTOR_SIZE);
+
+               duration_stop_measure(&duration, NULL);
+
+               if ((duration.duration.tv_sec * 1000 + duration.duration.tv_usec / 1000) > 3000) {
+                       LOG_INFO("wrote %u'th sectors", sect_num + i);
+                       duration_start_measure(&duration);
+               }
+       }
+
+       ret = mg_dsk_wait(mg_io_wait_rdy, MG_OEM_DISK_WAIT_TIME_NORMAL);
+
+       return ret;
+}
+
+static int mg_mflash_write_sects(void *buff, u32 sect_num, u32 sect_cnt)
+{
+       u32 quotient, residue, i;
+       u8 *buff_ptr = buff;
+
+       quotient = sect_cnt >> 8;
+       residue = sect_cnt % 256;
+
+       for (i = 0; i < quotient; i++) {
+               LOG_DEBUG("sect num : %u buff : %8.8x", sect_num, (u32)buff_ptr);
+               mg_mflash_do_write_sects(buff_ptr, sect_num, 256);
+               sect_num += 256;
+               buff_ptr += 256 * MG_MFLASH_SECTOR_SIZE;
+       }
+
+       if (residue) {
+               LOG_DEBUG("sect num : %u buff : %8.8x", sect_num, (u32)buff_ptr);
+               mg_mflash_do_write_sects(buff_ptr, sect_num, residue);
+       }
+
+       return ERROR_OK;
+}
+
+static int mg_mflash_read (u32 addr, u8 *buff, u32 len)
+{
+       u8 *sect_buff, *buff_ptr = buff;
+       u32 cur_addr, next_sec_addr, end_addr, cnt, sect_num;
+
+       cnt = 0;
+       cur_addr = addr;
+       end_addr = addr + len;
+
+       sect_buff = malloc(MG_MFLASH_SECTOR_SIZE);
+
+       if (cur_addr & MG_MFLASH_SECTOR_SIZE_MASK) {
+
+               next_sec_addr = (cur_addr + MG_MFLASH_SECTOR_SIZE) & ~MG_MFLASH_SECTOR_SIZE_MASK;
+               sect_num = cur_addr >> MG_MFLASH_SECTOR_SIZE_SHIFT;
+               mg_mflash_read_sects(sect_buff, sect_num, 1);
+
+               if (end_addr < next_sec_addr) {
+                       memcpy(buff_ptr, sect_buff + (cur_addr & MG_MFLASH_SECTOR_SIZE_MASK), end_addr - cur_addr);
+                       LOG_DEBUG("copies %u byte from sector offset 0x%8.8x", 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("copies %u byte from sector offset 0x%8.8x", next_sec_addr - cur_addr, cur_addr);
+                       buff_ptr += (next_sec_addr - cur_addr);
+                       cur_addr = next_sec_addr;
+               }
+       }
+
+       if (cur_addr < end_addr) {
+
+               sect_num = cur_addr >> MG_MFLASH_SECTOR_SIZE_SHIFT;
+               next_sec_addr = cur_addr + MG_MFLASH_SECTOR_SIZE;
+
+               while (next_sec_addr <= end_addr) {
+                       cnt++;
+                       next_sec_addr += MG_MFLASH_SECTOR_SIZE;
+               }
+
+               if (cnt)
+                       mg_mflash_read_sects(buff_ptr, sect_num, cnt);
+
+               buff_ptr += cnt * MG_MFLASH_SECTOR_SIZE;
+               cur_addr += cnt * MG_MFLASH_SECTOR_SIZE;
+
+               if (cur_addr < end_addr) {
+
+                       sect_num = cur_addr >> MG_MFLASH_SECTOR_SIZE_SHIFT;
+                       mg_mflash_read_sects(sect_buff, sect_num, 1);
+                       memcpy(buff_ptr, sect_buff, end_addr - cur_addr);
+                       LOG_DEBUG("copies %u byte", end_addr - cur_addr);
+
+               }
+
+       }
+
+       free(sect_buff);
+
+       return ERROR_OK;
+}
+
+static int mg_mflash_write(u32 addr, u8 *buff, u32 len)
+{
+       u8 *sect_buff, *buff_ptr = buff;
+       u32 cur_addr, next_sec_addr, end_addr, cnt, sect_num;
+
+       cnt = 0;
+       cur_addr = addr;
+       end_addr = addr + len;
+
+       sect_buff = malloc(MG_MFLASH_SECTOR_SIZE);
+
+       if (cur_addr & MG_MFLASH_SECTOR_SIZE_MASK) {
+
+               next_sec_addr = (cur_addr + MG_MFLASH_SECTOR_SIZE) & ~MG_MFLASH_SECTOR_SIZE_MASK;
+               sect_num = cur_addr >> MG_MFLASH_SECTOR_SIZE_SHIFT;
+               mg_mflash_read_sects(sect_buff, sect_num, 1);
+
+               if (end_addr < next_sec_addr) {
+                       memcpy(sect_buff + (cur_addr & MG_MFLASH_SECTOR_SIZE_MASK), buff_ptr, end_addr - cur_addr);
+                       LOG_DEBUG("copies %u byte to sector offset 0x%8.8x", 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("copies %u byte to sector offset 0x%8.8x", next_sec_addr - cur_addr, cur_addr);
+                       buff_ptr += (next_sec_addr - cur_addr);
+                       cur_addr = next_sec_addr;
+               }
+
+               mg_mflash_write_sects(sect_buff, sect_num, 1);
+
+       }
+
+       if (cur_addr < end_addr) {
+
+               sect_num = cur_addr >> MG_MFLASH_SECTOR_SIZE_SHIFT;
+               next_sec_addr = cur_addr + MG_MFLASH_SECTOR_SIZE;
+
+               while (next_sec_addr <= end_addr) {
+                       cnt++;
+                       next_sec_addr += MG_MFLASH_SECTOR_SIZE;
+               }
+
+               if (cnt)
+                       mg_mflash_write_sects(buff_ptr, sect_num, cnt);
+
+               buff_ptr += cnt * MG_MFLASH_SECTOR_SIZE;
+               cur_addr += cnt * MG_MFLASH_SECTOR_SIZE;
+
+               if (cur_addr < end_addr) {
+
+                       sect_num = cur_addr >> MG_MFLASH_SECTOR_SIZE_SHIFT;
+                       mg_mflash_read_sects(sect_buff, sect_num, 1);
+                       memcpy(sect_buff, buff_ptr, end_addr - cur_addr);
+                       LOG_DEBUG("copies %u byte", end_addr - cur_addr);
+                       mg_mflash_write_sects(sect_buff, sect_num, 1);
+
+               }
+
+       }
+
+       free(sect_buff);
+
+       return ERROR_OK;
+}
+
+static int mflash_write_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+       u32 address, buf_cnt;
+       u8 *buffer;
+       // TODO : multi-bank support, large file support
+       fileio_t fileio;
+       duration_t duration;
+       char *duration_text;
+       int ret;
+
+       if (argc != 3) {
+               return ERROR_COMMAND_SYNTAX_ERROR;
+       }
+
+       address = strtoul(args[2], NULL, 0);
+
+       if (! mflash_bank->proved ) {
+               mg_mflash_probe();
+       }
+
+
+       if (fileio_open(&fileio, args[1], FILEIO_READ, FILEIO_BINARY) != ERROR_OK) {
+               return ERROR_FAIL;
+       }
+
+       buffer = malloc(fileio.size);
+
+       if (fileio_read(&fileio, fileio.size, buffer, &buf_cnt) != ERROR_OK)
+       {
+               free(buffer);
+               fileio_close(&fileio);
+               return ERROR_FAIL;
+       }
+
+       duration_start_measure(&duration);
+
+       ret = mg_mflash_write(address, buffer, (u32)fileio.size);
+
+       duration_stop_measure(&duration, &duration_text);
+
+       command_print(cmd_ctx, "wrote %lli byte from file %s in %s (%f kB/s)",
+               fileio.size, args[1], duration_text,
+               (float)fileio.size / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
+
+       free(duration_text);
+
+       fileio_close(&fileio);
+
+       free(buffer);
+
+       return ERROR_OK;
+}
+
+static int mflash_dump_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+       u32 address, size_written, size;
+       u8 *buffer;
+       // TODO : multi-bank support
+       fileio_t fileio;
+       duration_t duration;
+       char *duration_text;
+
+       if (argc != 4) {
+               return ERROR_COMMAND_SYNTAX_ERROR;
+       }
+
+       address = strtoul(args[2], NULL, 0);
+       size = strtoul(args[3], NULL, 0);
+
+       if (! mflash_bank->proved ) {
+                       mg_mflash_probe();
+       }
+
+       if (fileio_open(&fileio, args[1], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK) {
+               return ERROR_FAIL;
+       }
+
+       buffer = malloc(size);
+
+       duration_start_measure(&duration);
+
+       mg_mflash_read(address, buffer, size);
+
+       duration_stop_measure(&duration, &duration_text);
+
+       fileio_write(&fileio, size, buffer, &size_written);
+
+       command_print(cmd_ctx, "dump image (address 0x%8.8x size %u) to file %s in %s (%f kB/s)",
+                               address, size, args[1], duration_text,
+                               (float)size / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
+
+       free(duration_text);
+
+       fileio_close(&fileio);
+
+       free(buffer);
+
+       return ERROR_OK;
+}
+
+int mflash_init_drivers(struct command_context_s *cmd_ctx)
+{
+       if (mflash_bank) {
+               register_command(cmd_ctx, mflash_cmd, "probe", mflash_probe_command, COMMAND_EXEC, NULL);
+               register_command(cmd_ctx, mflash_cmd, "write", mflash_write_command, COMMAND_EXEC,
+                               "mflash write <num> <file> <address>");
+               register_command(cmd_ctx, mflash_cmd, "dump", mflash_dump_command, COMMAND_EXEC,
+                                               "mflash dump <num> <file> <address> <size>");
+       }
+
+       return ERROR_OK;
+}
+
+static int mflash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+       target_t *target;
+       char *str;
+       int i;
+
+       if (argc < 8)
+       {
+               return ERROR_COMMAND_SYNTAX_ERROR;
+       }
+
+       if ((target = get_target_by_num(strtoul(args[7], NULL, 0))) == NULL)
+       {
+               LOG_ERROR("target %lu not defined", strtoul(args[7], NULL, 0));
+               return ERROR_FAIL;
+       }
+
+       mflash_bank = calloc(sizeof(mflash_bank_t), 1);
+       mflash_bank->base = strtoul(args[1], NULL, 0);
+       mflash_bank->chip_width = strtoul(args[2], NULL, 0);
+       mflash_bank->bus_width = strtoul(args[3], NULL, 0);
+       mflash_bank->rst_pin.num = strtoul(args[4], &str, 0);
+       if (*str)
+               mflash_bank->rst_pin.port[0] = (u16)tolower(str[0]);
+       mflash_bank->wp_pin.num = strtol(args[5], &str, 0);
+       if (*str)
+               mflash_bank->wp_pin.port[0] = (u16)tolower(str[0]);
+       mflash_bank->dpd_pin.num = strtol(args[6], &str, 0);
+       if (*str)
+               mflash_bank->dpd_pin.port[0] = (u16)tolower(str[0]);
+
+       mflash_bank->target = target;
+
+       for (i = 0; mflash_gpio[i] ; i++) {
+               if (! strcmp(mflash_gpio[i]->name, args[0])) {
+                       mflash_bank->gpio_drv = mflash_gpio[i];
+               }
+       }
+
+       if (! mflash_bank->gpio_drv) {
+               LOG_ERROR("%s is unsupported soc", args[0]);
+               return ERROR_INVALID_ARGUMENTS;
+       }
+
+       return ERROR_OK;
+}
+
+int mflash_register_commands(struct command_context_s *cmd_ctx)
+{
+       mflash_cmd = register_command(cmd_ctx, NULL, "mflash", NULL, COMMAND_ANY, NULL);
+       register_command(cmd_ctx, mflash_cmd, "bank", mflash_bank_command, COMMAND_CONFIG,
+                       "mflash bank <soc> <base> <chip_width> <bus_width> <RST pin> <WP pin> <DPD pin> <target #>");
+       return ERROR_OK;
+}