flash: nor: mdr: implement read/verify for Info memory
[fw/openocd] / src / flash / nor / kinetis.c
index a1614d38b2deff1d7884a3ffce972fa56e9a6a46..7907b8c386ad2f81d8f6a3ce946046d038fde36a 100644 (file)
@@ -11,6 +11,9 @@
  *   Copyright (C) 2013 Nemui Trinomius                                    *
  *   nemuisan_kawausogasuki@live.jp                                        *
  *                                                                         *
+ *   Copyright (C) 2015 Tomas Vanek                                        *
+ *   vanekt@fbl.cz                                                         *
+ *                                                                         *
  *   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     *
@@ -79,6 +82,8 @@
 
 /* Addressess */
 #define FLEXRAM                0x14000000
+
+#define FMC_PFB01CR    0x4001f004
 #define FTFx_FSTAT     0x40020000
 #define FTFx_FCNFG     0x40020001
 #define FTFx_FCCOB3    0x40020004
 #define SIM_FCFG1      0x4004804c
 #define SIM_FCFG2      0x40048050
 #define WDOG_STCTRH    0x40052000
+#define SMC_PMCTRL     0x4007E001
+#define SMC_PMSTAT     0x4007E003
+
+/* Values */
+#define PM_STAT_RUN            0x01
+#define PM_STAT_VLPR           0x04
+#define PM_CTRL_RUNM_RUN       0x00
 
 /* Commands */
 #define FTFx_CMD_BLOCKSTAT  0x00
 #define FTFx_CMD_LWORDPROG  0x06
 #define FTFx_CMD_SECTERASE  0x09
 #define FTFx_CMD_SECTWRITE  0x0b
-#define FTFx_CMD_SETFLEXRAM 0x81
 #define FTFx_CMD_MASSERASE  0x44
+#define FTFx_CMD_PGMPART    0x80
+#define FTFx_CMD_SETFLEXRAM 0x81
 
 /* The older Kinetis K series uses the following SDID layout :
  * Bit 31-16 : 0
@@ -212,6 +225,7 @@ struct kinetis_flash_bank {
                FS_PROGRAM_SECTOR = 1,
                FS_PROGRAM_LONGWORD = 2,
                FS_PROGRAM_PHRASE = 4, /* Unsupported */
+               FS_INVALIDATE_CACHE = 8,
        } flash_support;
 };
 
@@ -874,7 +888,7 @@ static int kinetis_protect_check(struct flash_bank *bank)
        return ERROR_OK;
 }
 
-static int kinetis_ftfx_command(struct flash_bank *bank, uint8_t fcmd, uint32_t faddr,
+static int kinetis_ftfx_command(struct target *target, uint8_t fcmd, uint32_t faddr,
                                uint8_t fccob4, uint8_t fccob5, uint8_t fccob6, uint8_t fccob7,
                                uint8_t fccob8, uint8_t fccob9, uint8_t fccoba, uint8_t fccobb,
                                uint8_t *ftfx_fstat)
@@ -888,7 +902,7 @@ static int kinetis_ftfx_command(struct flash_bank *bank, uint8_t fcmd, uint32_t
        /* wait for done */
        for (i = 0; i < 50; i++) {
                result =
-                       target_read_memory(bank->target, FTFx_FSTAT, 1, 1, &buffer);
+                       target_read_memory(target, FTFx_FSTAT, 1, 1, &buffer);
 
                if (result != ERROR_OK)
                        return result;
@@ -903,26 +917,26 @@ static int kinetis_ftfx_command(struct flash_bank *bank, uint8_t fcmd, uint32_t
                /* reset error flags */
                buffer = 0x30;
                result =
-                       target_write_memory(bank->target, FTFx_FSTAT, 1, 1, &buffer);
+                       target_write_memory(target, FTFx_FSTAT, 1, 1, &buffer);
                if (result != ERROR_OK)
                        return result;
        }
 
-       result = target_write_memory(bank->target, FTFx_FCCOB3, 4, 3, command);
+       result = target_write_memory(target, FTFx_FCCOB3, 4, 3, command);
 
        if (result != ERROR_OK)
                return result;
 
        /* start command */
        buffer = 0x80;
-       result = target_write_memory(bank->target, FTFx_FSTAT, 1, 1, &buffer);
+       result = target_write_memory(target, FTFx_FSTAT, 1, 1, &buffer);
        if (result != ERROR_OK)
                return result;
 
        /* wait for done */
        for (i = 0; i < 240; i++) { /* Need longtime for "Mass Erase" Command Nemui Changed */
                result =
-                       target_read_memory(bank->target, FTFx_FSTAT, 1, 1, ftfx_fstat);
+                       target_read_memory(target, FTFx_FSTAT, 1, 1, ftfx_fstat);
 
                if (result != ERROR_OK)
                        return result;
@@ -943,37 +957,69 @@ static int kinetis_ftfx_command(struct flash_bank *bank, uint8_t fcmd, uint32_t
        return ERROR_OK;
 }
 
-COMMAND_HANDLER(kinetis_securing_test)
+
+static int kinetis_check_run_mode(struct target *target)
 {
-       int result;
-       uint8_t ftfx_fstat;
-       struct target *target = get_current_target(CMD_CTX);
-       struct flash_bank *bank = NULL;
+       int result, i;
+       uint8_t pmctrl, pmstat;
 
-       result = get_flash_bank_by_addr(target, 0x00000000, true, &bank);
+       if (target->state != TARGET_HALTED) {
+               LOG_ERROR("Target not halted");
+               return ERROR_TARGET_NOT_HALTED;
+       }
+
+       result = target_read_u8(target, SMC_PMSTAT, &pmstat);
        if (result != ERROR_OK)
                return result;
 
-       assert(bank != NULL);
+       if (pmstat == PM_STAT_RUN)
+               return ERROR_OK;
 
-       if (target->state != TARGET_HALTED) {
-               LOG_ERROR("Target not halted");
-               return ERROR_TARGET_NOT_HALTED;
+       if (pmstat == PM_STAT_VLPR) {
+               /* It is safe to switch from VLPR to RUN mode without changing clock */
+               LOG_INFO("Switching from VLPR to RUN mode.");
+               pmctrl = PM_CTRL_RUNM_RUN;
+               result = target_write_u8(target, SMC_PMCTRL, pmctrl);
+               if (result != ERROR_OK)
+                       return result;
+
+               for (i = 100; i; i--) {
+                       result = target_read_u8(target, SMC_PMSTAT, &pmstat);
+                       if (result != ERROR_OK)
+                               return result;
+
+                       if (pmstat == PM_STAT_RUN)
+                               return ERROR_OK;
+               }
        }
 
-       return kinetis_ftfx_command(bank, FTFx_CMD_SECTERASE, bank->base + 0x00000400,
-                                     0, 0, 0, 0,  0, 0, 0, 0,  &ftfx_fstat);
+       LOG_ERROR("Flash operation not possible in current run mode: SMC_PMSTAT: 0x%x", pmstat);
+       LOG_ERROR("Issue a 'reset init' command.");
+       return ERROR_TARGET_NOT_HALTED;
+}
+
+
+static void kinetis_invalidate_flash_cache(struct flash_bank *bank)
+{
+       struct kinetis_flash_bank *kinfo = bank->driver_priv;
+       uint8_t pfb01cr_byte2 = 0xf0;
+
+       if (!(kinfo->flash_support & FS_INVALIDATE_CACHE))
+               return;
+
+       target_write_memory(bank->target, FMC_PFB01CR + 2, 1, 1, &pfb01cr_byte2);
+       return;
 }
 
+
 static int kinetis_erase(struct flash_bank *bank, int first, int last)
 {
        int result, i;
        struct kinetis_flash_bank *kinfo = bank->driver_priv;
 
-       if (bank->target->state != TARGET_HALTED) {
-               LOG_ERROR("Target not halted");
-               return ERROR_TARGET_NOT_HALTED;
-       }
+       result = kinetis_check_run_mode(bank->target);
+       if (result != ERROR_OK)
+               return result;
 
        if ((first > bank->num_sectors) || (last > bank->num_sectors))
                return ERROR_FLASH_OPERATION_FAILED;
@@ -986,7 +1032,7 @@ static int kinetis_erase(struct flash_bank *bank, int first, int last)
        for (i = first; i <= last; i++) {
                uint8_t ftfx_fstat;
                /* set command and sector address */
-               result = kinetis_ftfx_command(bank, FTFx_CMD_SECTERASE, kinfo->prog_base + bank->sectors[i].offset,
+               result = kinetis_ftfx_command(bank->target, FTFx_CMD_SECTERASE, kinfo->prog_base + bank->sectors[i].offset,
                                0, 0, 0, 0,  0, 0, 0, 0,  &ftfx_fstat);
 
                if (result != ERROR_OK) {
@@ -997,6 +1043,8 @@ static int kinetis_erase(struct flash_bank *bank, int first, int last)
                bank->sectors[i].is_erased = 1;
        }
 
+       kinetis_invalidate_flash_cache(bank);
+
        if (first == 0) {
                LOG_WARNING
                        ("flash configuration field erased, please reset the device");
@@ -1005,53 +1053,63 @@ static int kinetis_erase(struct flash_bank *bank, int first, int last)
        return ERROR_OK;
 }
 
+static int kinetis_make_ram_ready(struct target *target)
+{
+       int result;
+       uint8_t ftfx_fstat;
+       uint8_t ftfx_fcnfg;
+
+       /* check if ram ready */
+       result = target_read_memory(target, FTFx_FCNFG, 1, 1, &ftfx_fcnfg);
+       if (result != ERROR_OK)
+               return result;
+
+       if (ftfx_fcnfg & (1 << 1))
+               return ERROR_OK;        /* ram ready */
+
+       /* make flex ram available */
+       result = kinetis_ftfx_command(target, FTFx_CMD_SETFLEXRAM, 0x00ff0000,
+                                0, 0, 0, 0,  0, 0, 0, 0,  &ftfx_fstat);
+       if (result != ERROR_OK)
+               return ERROR_FLASH_OPERATION_FAILED;
+
+       /* check again */
+       result = target_read_memory(target, FTFx_FCNFG, 1, 1, &ftfx_fcnfg);
+       if (result != ERROR_OK)
+               return result;
+
+       if (ftfx_fcnfg & (1 << 1))
+               return ERROR_OK;        /* ram ready */
+
+       return ERROR_FLASH_OPERATION_FAILED;
+}
+
 static int kinetis_write(struct flash_bank *bank, const uint8_t *buffer,
                         uint32_t offset, uint32_t count)
 {
        unsigned int i, result, fallback = 0;
-       uint8_t buf[8];
        uint32_t wc;
        struct kinetis_flash_bank *kinfo = bank->driver_priv;
        uint8_t *new_buffer = NULL;
 
-       if (bank->target->state != TARGET_HALTED) {
-               LOG_ERROR("Target not halted");
-               return ERROR_TARGET_NOT_HALTED;
-       }
+       result = kinetis_check_run_mode(bank->target);
+       if (result != ERROR_OK)
+               return result;
 
        if (!(kinfo->flash_support & FS_PROGRAM_SECTOR)) {
                /* fallback to longword write */
                fallback = 1;
                LOG_WARNING("This device supports Program Longword execution only.");
-               LOG_DEBUG("flash write into PFLASH @08%" PRIX32, offset);
-
-       } else if (kinfo->flash_class == FC_FLEX_NVM) {
-               uint8_t ftfx_fstat;
-
-               LOG_DEBUG("flash write into FlexNVM @%08" PRIX32, offset);
-
-               /* make flex ram available */
-               result = kinetis_ftfx_command(bank, FTFx_CMD_SETFLEXRAM, 0x00ff0000, 0, 0, 0, 0,  0, 0, 0, 0,  &ftfx_fstat);
-
-               if (result != ERROR_OK)
-                       return ERROR_FLASH_OPERATION_FAILED;
-
-               /* check if ram ready */
-               result = target_read_memory(bank->target, FTFx_FCNFG, 1, 1, buf);
-
-               if (result != ERROR_OK)
-                       return result;
-
-               if (!(buf[0] & (1 << 1))) {
-                       /* fallback to longword write */
+       } else {
+               result = kinetis_make_ram_ready(bank->target);
+               if (result != ERROR_OK) {
                        fallback = 1;
-
-                       LOG_WARNING("ram not ready, fallback to slow longword write (FCNFG: %02X)", buf[0]);
+                       LOG_WARNING("FlexRAM not ready, fallback to slow longword write.");
                }
-       } else {
-               LOG_DEBUG("flash write into PFLASH @08%" PRIX32, offset);
        }
 
+       LOG_DEBUG("flash write @08%" PRIX32, offset);
+
 
        /* program section command */
        if (fallback == 0) {
@@ -1126,7 +1184,7 @@ static int kinetis_write(struct flash_bank *bank, const uint8_t *buffer,
                        }
 
                        /* execute section-write command */
-                       result = kinetis_ftfx_command(bank, FTFx_CMD_SECTWRITE, kinfo->prog_base + offset + i,
+                       result = kinetis_ftfx_command(bank->target, FTFx_CMD_SECTWRITE, kinfo->prog_base + offset + i,
                                        section_count>>8, section_count, 0, 0,
                                        0, 0, 0, 0,  &ftfx_fstat);
 
@@ -1172,7 +1230,7 @@ static int kinetis_write(struct flash_bank *bank, const uint8_t *buffer,
                                uint8_t padding[4] = {0xff, 0xff, 0xff, 0xff};
                                memcpy(padding, buffer + i, MIN(4, count-i));
 
-                               result = kinetis_ftfx_command(bank, FTFx_CMD_LWORDPROG, kinfo->prog_base + offset + i,
+                               result = kinetis_ftfx_command(bank->target, FTFx_CMD_LWORDPROG, kinfo->prog_base + offset + i,
                                                padding[3], padding[2], padding[1], padding[0],
                                                0, 0, 0, 0,  &ftfx_fstat);
 
@@ -1185,6 +1243,7 @@ static int kinetis_write(struct flash_bank *bank, const uint8_t *buffer,
                return ERROR_FLASH_OPERATION_FAILED;
        }
 
+       kinetis_invalidate_flash_cache(bank);
        return ERROR_OK;
 }
 
@@ -1193,7 +1252,7 @@ static int kinetis_read_part_info(struct flash_bank *bank)
        int result, i;
        uint32_t offset = 0;
        uint8_t fcfg1_nvmsize, fcfg1_pfsize, fcfg1_eesize, fcfg1_depart;
-       uint8_t fcfg2_pflsh;
+       uint8_t fcfg2_maxaddr0, fcfg2_pflsh, fcfg2_maxaddr1;
        uint32_t nvm_size = 0, pf_size = 0, df_size = 0, ee_size = 0;
        unsigned num_blocks = 0, num_pflash_blocks = 0, num_nvm_blocks = 0, first_nvm_bank = 0,
                        pflash_sector_size_bytes = 0, nvm_sector_size_bytes = 0;
@@ -1217,7 +1276,7 @@ static int kinetis_read_part_info(struct flash_bank *bank)
                        pflash_sector_size_bytes = 1<<10;
                        nvm_sector_size_bytes = 1<<10;
                        num_blocks = 2;
-                       kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_PROGRAM_SECTOR;
+                       kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_PROGRAM_SECTOR | FS_INVALIDATE_CACHE;
                        break;
                case KINETIS_K_SDID_K10_M72:
                case KINETIS_K_SDID_K20_M72:
@@ -1230,7 +1289,7 @@ static int kinetis_read_part_info(struct flash_bank *bank)
                        pflash_sector_size_bytes = 2<<10;
                        nvm_sector_size_bytes = 1<<10;
                        num_blocks = 2;
-                       kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_PROGRAM_SECTOR;
+                       kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_PROGRAM_SECTOR | FS_INVALIDATE_CACHE;
                        kinfo->max_flash_prog_size = 1<<10;
                        break;
                case KINETIS_K_SDID_K10_M100:
@@ -1246,7 +1305,7 @@ static int kinetis_read_part_info(struct flash_bank *bank)
                        pflash_sector_size_bytes = 2<<10;
                        nvm_sector_size_bytes = 2<<10;
                        num_blocks = 2;
-                       kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_PROGRAM_SECTOR;
+                       kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_PROGRAM_SECTOR | FS_INVALIDATE_CACHE;
                        break;
                case KINETIS_K_SDID_K21_M120:
                case KINETIS_K_SDID_K22_M120:
@@ -1255,7 +1314,7 @@ static int kinetis_read_part_info(struct flash_bank *bank)
                        kinfo->max_flash_prog_size = 1<<10;
                        nvm_sector_size_bytes = 4<<10;
                        num_blocks = 2;
-                       kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR;
+                       kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR | FS_INVALIDATE_CACHE;
                        break;
                case KINETIS_K_SDID_K10_M120:
                case KINETIS_K_SDID_K20_M120:
@@ -1265,7 +1324,7 @@ static int kinetis_read_part_info(struct flash_bank *bank)
                        pflash_sector_size_bytes = 4<<10;
                        nvm_sector_size_bytes = 4<<10;
                        num_blocks = 4;
-                       kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR;
+                       kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR | FS_INVALIDATE_CACHE;
                        break;
                default:
                        LOG_ERROR("Unsupported K-family FAMID");
@@ -1279,7 +1338,7 @@ static int kinetis_read_part_info(struct flash_bank *bank)
                                /* K02FN64, K02FN128: FTFA, 2kB sectors */
                                pflash_sector_size_bytes = 2<<10;
                                num_blocks = 1;
-                               kinfo->flash_support = FS_PROGRAM_LONGWORD;
+                               kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_INVALIDATE_CACHE;
                                break;
 
                        case KINETIS_SDID_FAMILYID_K2X | KINETIS_SDID_SUBFAMID_KX2: {
@@ -1294,7 +1353,7 @@ static int kinetis_read_part_info(struct flash_bank *bank)
                                        /* MK24FN1M */
                                        pflash_sector_size_bytes = 4<<10;
                                        num_blocks = 2;
-                                       kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR;
+                                       kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR | FS_INVALIDATE_CACHE;
                                        kinfo->max_flash_prog_size = 1<<10;
                                        break;
                                }
@@ -1303,8 +1362,8 @@ static int kinetis_read_part_info(struct flash_bank *bank)
                                        || (kinfo->sim_sdid & (KINETIS_SDID_DIEID_MASK)) == KINETIS_SDID_DIEID_K22FN512) {
                                        /* K22 with new-style SDID - smaller pflash with FTFA, 2kB sectors */
                                        pflash_sector_size_bytes = 2<<10;
-                                       num_blocks = 2;         /* 1 or 2 blocks */
-                                       kinfo->flash_support = FS_PROGRAM_LONGWORD;
+                                       /* autodetect 1 or 2 blocks */
+                                       kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_INVALIDATE_CACHE;
                                        break;
                                }
                                LOG_ERROR("Unsupported Kinetis K22 DIEID");
@@ -1315,12 +1374,12 @@ static int kinetis_read_part_info(struct flash_bank *bank)
                                if ((kinfo->sim_sdid & (KINETIS_SDID_DIEID_MASK)) == KINETIS_SDID_DIEID_K24FN256) {
                                        /* K24FN256 - smaller pflash with FTFA */
                                        num_blocks = 1;
-                                       kinfo->flash_support = FS_PROGRAM_LONGWORD;
+                                       kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_INVALIDATE_CACHE;
                                        break;
                                }
                                /* K24FN1M without errata 7534 */
                                num_blocks = 2;
-                               kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR;
+                               kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR | FS_INVALIDATE_CACHE;
                                kinfo->max_flash_prog_size = 1<<10;
                                break;
 
@@ -1334,7 +1393,7 @@ static int kinetis_read_part_info(struct flash_bank *bank)
                                nvm_sector_size_bytes = 4<<10;
                                kinfo->max_flash_prog_size = 1<<10;
                                num_blocks = 2;
-                               kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR;
+                               kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR | FS_INVALIDATE_CACHE;
                                break;
 
                        case KINETIS_SDID_FAMILYID_K2X | KINETIS_SDID_SUBFAMID_KX6:
@@ -1345,7 +1404,7 @@ static int kinetis_read_part_info(struct flash_bank *bank)
                                nvm_sector_size_bytes = 4<<10;
                                kinfo->max_flash_prog_size = 1<<10;
                                num_blocks = 4;
-                               kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR;
+                               kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR | FS_INVALIDATE_CACHE;
                                break;
                        default:
                                LOG_ERROR("Unsupported Kinetis FAMILYID SUBFAMID");
@@ -1355,7 +1414,7 @@ static int kinetis_read_part_info(struct flash_bank *bank)
                        /* KL-series */
                        pflash_sector_size_bytes = 1<<10;
                        nvm_sector_size_bytes = 1<<10;
-                       num_blocks = 1;
+                       /* autodetect 1 or 2 blocks */
                        kinfo->flash_support = FS_PROGRAM_LONGWORD;
                        break;
                default:
@@ -1385,6 +1444,18 @@ static int kinetis_read_part_info(struct flash_bank *bank)
        fcfg1_depart = (uint8_t)((kinfo->sim_fcfg1 >> 8) & 0x0f);
 
        fcfg2_pflsh = (uint8_t)((kinfo->sim_fcfg2 >> 23) & 0x01);
+       fcfg2_maxaddr0 = (uint8_t)((kinfo->sim_fcfg2 >> 24) & 0x7f);
+       fcfg2_maxaddr1 = (uint8_t)((kinfo->sim_fcfg2 >> 16) & 0x7f);
+
+       if (num_blocks == 0)
+               num_blocks = fcfg2_maxaddr1 ? 2 : 1;
+       else if (fcfg2_maxaddr1 == 0 && num_blocks >= 2) {
+               num_blocks = 1;
+               LOG_WARNING("MAXADDR1 is zero, number of flash banks adjusted to 1");
+       } else if (fcfg2_maxaddr1 != 0 && num_blocks == 1) {
+               num_blocks = 2;
+               LOG_WARNING("MAXADDR1 is non zero, number of flash banks adjusted to 2");
+       }
 
        /* when the PFLSH bit is set, there is no FlexNVM/FlexRAM */
        if (!fcfg2_pflsh) {
@@ -1461,12 +1532,22 @@ static int kinetis_read_part_info(struct flash_bank *bank)
                pf_size = 1 << (14 + (fcfg1_pfsize >> 1));
                break;
        case 0x0f:
-               if (pflash_sector_size_bytes >= 4<<10)
-                       pf_size = 1024<<10;
-               else if (fcfg2_pflsh)
-                       pf_size = 512<<10;
+               /* a peculiar case: Freescale states different sizes for 0xf
+                * K02P64M100SFARM      128 KB ... duplicate of code 0x7
+                * K22P121M120SF8RM     256 KB ... duplicate of code 0x9
+                * K22P121M120SF7RM     512 KB ... duplicate of code 0xb
+                * K22P100M120SF5RM     1024 KB ... duplicate of code 0xd
+                * K26P169M180SF5RM     2048 KB ... the only unique value
+                * fcfg2_maxaddr0 seems to be the only clue to pf_size
+                * Checking fcfg2_maxaddr0 later in this routine is pointless then
+                */
+               if (fcfg2_pflsh)
+                       pf_size = ((uint32_t)fcfg2_maxaddr0 << 13) * num_blocks;
                else
-                       pf_size = 256<<10;
+                       pf_size = ((uint32_t)fcfg2_maxaddr0 << 13) * num_blocks / 2;
+               if (pf_size != 2048<<10)
+                       LOG_WARNING("SIM_FCFG1 PFSIZE = 0xf: please check if pflash is %u KB", pf_size>>10);
+
                break;
        default:
                pf_size = 0;
@@ -1538,6 +1619,20 @@ static int kinetis_read_part_info(struct flash_bank *bank)
                return ERROR_FLASH_BANK_INVALID;
        }
 
+       if (bank->bank_number == 0 && ((uint32_t)fcfg2_maxaddr0 << 13) != bank->size)
+               LOG_WARNING("MAXADDR0 0x%02" PRIx8 " check failed,"
+                               " please report to OpenOCD mailing list", fcfg2_maxaddr0);
+       if (fcfg2_pflsh) {
+               if (bank->bank_number == 1 && ((uint32_t)fcfg2_maxaddr1 << 13) != bank->size)
+                       LOG_WARNING("MAXADDR1 0x%02" PRIx8 " check failed,"
+                               " please report to OpenOCD mailing list", fcfg2_maxaddr1);
+       } else {
+               if ((unsigned)bank->bank_number == first_nvm_bank
+                               && ((uint32_t)fcfg2_maxaddr1 << 13) != df_size)
+                       LOG_WARNING("FlexNVM MAXADDR1 0x%02" PRIx8 " check failed,"
+                               " please report to OpenOCD mailing list", fcfg2_maxaddr1);
+       }
+
        if (bank->sectors) {
                free(bank->sectors);
                bank->sectors = NULL;
@@ -1613,14 +1708,14 @@ static int kinetis_info(struct flash_bank *bank, char *buf, int buf_size)
 static int kinetis_blank_check(struct flash_bank *bank)
 {
        struct kinetis_flash_bank *kinfo = bank->driver_priv;
+       int result;
 
-       if (bank->target->state != TARGET_HALTED) {
-               LOG_ERROR("Target not halted");
-               return ERROR_TARGET_NOT_HALTED;
-       }
+       /* suprisingly blank check does not work in VLPR and HSRUN modes */
+       result = kinetis_check_run_mode(bank->target);
+       if (result != ERROR_OK)
+               return result;
 
        if (kinfo->flash_class == FC_PFLASH || kinfo->flash_class == FC_FLEX_NVM) {
-               int result;
                bool block_dirty = false;
                uint8_t ftfx_fstat;
 
@@ -1633,7 +1728,7 @@ static int kinetis_blank_check(struct flash_bank *bank)
 
                if (!block_dirty) {
                        /* check if whole bank is blank */
-                       result = kinetis_ftfx_command(bank, FTFx_CMD_BLOCKSTAT, kinfo->prog_base,
+                       result = kinetis_ftfx_command(bank->target, FTFx_CMD_BLOCKSTAT, kinfo->prog_base,
                                                         0, 0, 0, 0,  0, 0, 0, 0, &ftfx_fstat);
 
                        if (result != ERROR_OK || (ftfx_fstat & 0x01))
@@ -1645,7 +1740,8 @@ static int kinetis_blank_check(struct flash_bank *bank)
                        int i;
                        for (i = 0; i < bank->num_sectors; i++) {
                                /* normal margin */
-                               result = kinetis_ftfx_command(bank, FTFx_CMD_SECTSTAT, kinfo->prog_base + bank->sectors[i].offset,
+                               result = kinetis_ftfx_command(bank->target, FTFx_CMD_SECTSTAT,
+                                               kinfo->prog_base + bank->sectors[i].offset,
                                                1, 0, 0, 0,  0, 0, 0, 0, &ftfx_fstat);
 
                                if (result == ERROR_OK) {
@@ -1669,6 +1765,145 @@ static int kinetis_blank_check(struct flash_bank *bank)
        return ERROR_OK;
 }
 
+
+COMMAND_HANDLER(kinetis_nvm_partition)
+{
+       int result, i;
+       unsigned long par, log2 = 0, ee1 = 0, ee2 = 0;
+       enum { SHOW_INFO, DF_SIZE, EEBKP_SIZE } sz_type = SHOW_INFO;
+       bool enable;
+       uint8_t ftfx_fstat;
+       uint8_t load_flex_ram = 1;
+       uint8_t ee_size_code = 0x3f;
+       uint8_t flex_nvm_partition_code = 0;
+       uint8_t ee_split = 3;
+       struct target *target = get_current_target(CMD_CTX);
+       struct flash_bank *bank;
+       struct kinetis_flash_bank *kinfo;
+       uint32_t sim_fcfg1;
+
+       if (CMD_ARGC >= 2) {
+               if (strcmp(CMD_ARGV[0], "dataflash") == 0)
+                       sz_type = DF_SIZE;
+               else if (strcmp(CMD_ARGV[0], "eebkp") == 0)
+                       sz_type = EEBKP_SIZE;
+
+               par = strtoul(CMD_ARGV[1], NULL, 10);
+               while (par >> (log2 + 3))
+                       log2++;
+       }
+       switch (sz_type) {
+       case SHOW_INFO:
+               result = target_read_u32(target, SIM_FCFG1, &sim_fcfg1);
+               if (result != ERROR_OK)
+                       return result;
+
+               flex_nvm_partition_code = (uint8_t)((sim_fcfg1 >> 8) & 0x0f);
+               switch (flex_nvm_partition_code) {
+               case 0:
+                       command_print(CMD_CTX, "No EEPROM backup, data flash only");
+                       break;
+               case 1:
+               case 2:
+               case 3:
+               case 4:
+               case 5:
+               case 6:
+                       command_print(CMD_CTX, "EEPROM backup %d KB", 4 << flex_nvm_partition_code);
+                       break;
+               case 8:
+                       command_print(CMD_CTX, "No data flash, EEPROM backup only");
+                       break;
+               case 0x9:
+               case 0xA:
+               case 0xB:
+               case 0xC:
+               case 0xD:
+               case 0xE:
+                       command_print(CMD_CTX, "data flash %d KB", 4 << (flex_nvm_partition_code & 7));
+                       break;
+               case 0xf:
+                       command_print(CMD_CTX, "No EEPROM backup, data flash only (DEPART not set)");
+                       break;
+               default:
+                       command_print(CMD_CTX, "Unsupported EEPROM backup size code 0x%02" PRIx8, flex_nvm_partition_code);
+               }
+               return ERROR_OK;
+
+       case DF_SIZE:
+               flex_nvm_partition_code = 0x8 | log2;
+               break;
+
+       case EEBKP_SIZE:
+               flex_nvm_partition_code = log2;
+               break;
+       }
+
+       if (CMD_ARGC == 3)
+               ee1 = ee2 = strtoul(CMD_ARGV[2], NULL, 10) / 2;
+       else if (CMD_ARGC >= 4) {
+               ee1 = strtoul(CMD_ARGV[2], NULL, 10);
+               ee2 = strtoul(CMD_ARGV[3], NULL, 10);
+       }
+
+       enable = ee1 + ee2 > 0;
+       if (enable) {
+               for (log2 = 2; ; log2++) {
+                       if (ee1 + ee2 == (16u << 10) >> log2)
+                               break;
+                       if (ee1 + ee2 > (16u << 10) >> log2 || log2 >= 9) {
+                               LOG_ERROR("Unsupported EEPROM size");
+                               return ERROR_FLASH_OPERATION_FAILED;
+                       }
+               }
+
+               if (ee1 * 3 == ee2)
+                       ee_split = 1;
+               else if (ee1 * 7 == ee2)
+                       ee_split = 0;
+               else if (ee1 != ee2) {
+                       LOG_ERROR("Unsupported EEPROM sizes ratio");
+                       return ERROR_FLASH_OPERATION_FAILED;
+               }
+
+               ee_size_code = log2 | ee_split << 4;
+       }
+
+       if (CMD_ARGC >= 5)
+               COMMAND_PARSE_ON_OFF(CMD_ARGV[4], enable);
+       if (enable)
+               load_flex_ram = 0;
+
+       LOG_INFO("DEPART 0x%" PRIx8 ", EEPROM size code 0x%" PRIx8,
+                flex_nvm_partition_code, ee_size_code);
+
+       result = kinetis_check_run_mode(target);
+       if (result != ERROR_OK)
+               return result;
+
+       result = kinetis_ftfx_command(target, FTFx_CMD_PGMPART, load_flex_ram,
+                                     ee_size_code, flex_nvm_partition_code, 0, 0,
+                                     0, 0, 0, 0,  &ftfx_fstat);
+       if (result != ERROR_OK)
+               return result;
+
+       command_print(CMD_CTX, "FlexNVM partition set. Please reset MCU.");
+
+       for (i = 1; i < 4; i++) {
+               bank = get_flash_bank_by_num_noprobe(i);
+               if (bank == NULL)
+                       break;
+
+               kinfo = bank->driver_priv;
+               if (kinfo && kinfo->flash_class == FC_FLEX_NVM)
+                       kinfo->probed = false;  /* re-probe before next use */
+       }
+
+       command_print(CMD_CTX, "FlexNVM banks will be re-probed to set new data flash size.");
+       return ERROR_OK;
+}
+
+
 static const struct command_registration kinetis_securtiy_command_handlers[] = {
        {
                .name = "check_security",
@@ -1684,13 +1919,6 @@ static const struct command_registration kinetis_securtiy_command_handlers[] = {
                .usage = "",
                .handler = kinetis_mdm_mass_erase,
        },
-       {
-               .name = "test_securing",
-               .mode = COMMAND_EXEC,
-               .help = "",
-               .usage = "",
-               .handler = kinetis_securing_test,
-       },
        COMMAND_REGISTRATION_DONE
 };
 
@@ -1709,6 +1937,14 @@ static const struct command_registration kinetis_exec_command_handlers[] = {
                .usage = "",
                .handler = kinetis_disable_wdog_handler,
        },
+       {
+               .name = "nvm_partition",
+               .mode = COMMAND_EXEC,
+               .help = "Show/set data flash or EEPROM backup size in kilobytes,"
+                       " set two EEPROM sizes in bytes and FlexRAM loading during reset",
+               .usage = "('info'|'dataflash' size|'eebkp' size) [eesize1 eesize2] ['on'|'off']",
+               .handler = kinetis_nvm_partition,
+       },
        COMMAND_REGISTRATION_DONE
 };
 
@@ -1716,7 +1952,7 @@ static const struct command_registration kinetis_command_handler[] = {
        {
                .name = "kinetis",
                .mode = COMMAND_ANY,
-               .help = "kinetis NAND flash controller commands",
+               .help = "kinetis flash controller commands",
                .usage = "",
                .chain = kinetis_exec_command_handlers,
        },