|
- /***************************************************************************
- * Copyright (C) 2011 by Mathias Kuester *
- * kesmtp@freenet.de *
- * *
- * Copyright (C) 2011 sleep(5) ltd *
- * tomas@sleepfive.com *
- * *
- * Copyright (C) 2012 by Christopher D. Kilgour *
- * techie at whiterocker.com *
- * *
- * 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 *
- * (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, see <http://www.gnu.org/licenses/>. *
- ***************************************************************************/
-
- #ifdef HAVE_CONFIG_H
- #include "config.h"
- #endif
-
- #include "jtag/interface.h"
- #include "imp.h"
- #include <helper/binarybuffer.h>
- #include <helper/time_support.h>
- #include <target/target_type.h>
- #include <target/algorithm.h>
- #include <target/armv7m.h>
- #include <target/cortex_m.h>
-
- /*
- * Implementation Notes
- *
- * The persistent memories in the Kinetis chip families K10 through
- * K70 are all manipulated with the Flash Memory Module. Some
- * variants call this module the FTFE, others call it the FTFL. To
- * indicate that both are considered here, we use FTFX.
- *
- * Within the module, according to the chip variant, the persistent
- * memory is divided into what Freescale terms Program Flash, FlexNVM,
- * and FlexRAM. All chip variants have Program Flash. Some chip
- * variants also have FlexNVM and FlexRAM, which always appear
- * together.
- *
- * A given Kinetis chip may have 1, 2 or 4 blocks of flash. Here we map
- * each block to a separate bank. Each block size varies by chip and
- * may be determined by the read-only SIM_FCFG1 register. The sector
- * size within each bank/block varies by chip, and may be 1, 2 or 4k.
- * The sector size may be different for flash and FlexNVM.
- *
- * The first half of the flash (1 or 2 blocks) is always Program Flash
- * and always starts at address 0x00000000. The "PFLSH" flag, bit 23
- * of the read-only SIM_FCFG2 register, determines whether the second
- * half of the flash is also Program Flash or FlexNVM+FlexRAM. When
- * PFLSH is set, the second from the first half. When PFLSH is clear,
- * the second half of flash is FlexNVM and always starts at address
- * 0x10000000. FlexRAM, which is also present when PFLSH is clear,
- * always starts at address 0x14000000.
- *
- * The Flash Memory Module provides a register set where flash
- * commands are loaded to perform flash operations like erase and
- * program. Different commands are available depending on whether
- * Program Flash or FlexNVM/FlexRAM is being manipulated. Although
- * the commands used are quite consistent between flash blocks, the
- * parameters they accept differ according to the flash sector size.
- *
- */
-
- /* Addressess */
- #define FCF_ADDRESS 0x00000400
- #define FCF_FPROT 0x8
- #define FCF_FSEC 0xc
- #define FCF_FOPT 0xd
- #define FCF_FDPROT 0xf
- #define FCF_SIZE 0x10
-
- #define FLEXRAM 0x14000000
-
- #define FMC_PFB01CR 0x4001f004
- #define FTFx_FSTAT 0x40020000
- #define FTFx_FCNFG 0x40020001
- #define FTFx_FCCOB3 0x40020004
- #define FTFx_FPROT3 0x40020010
- #define FTFx_FDPROT 0x40020017
- #define SIM_SDID 0x40048024
- #define SIM_SOPT1 0x40047000
- #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_SECTSTAT 0x01
- #define FTFx_CMD_LWORDPROG 0x06
- #define FTFx_CMD_SECTERASE 0x09
- #define FTFx_CMD_SECTWRITE 0x0b
- #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
- * Bit 15-12 : REVID
- * Bit 11-7 : DIEID
- * Bit 6-4 : FAMID
- * Bit 3-0 : PINID
- *
- * The newer Kinetis series uses the following SDID layout :
- * Bit 31-28 : FAMID
- * Bit 27-24 : SUBFAMID
- * Bit 23-20 : SERIESID
- * Bit 19-16 : SRAMSIZE
- * Bit 15-12 : REVID
- * Bit 6-4 : Reserved (0)
- * Bit 3-0 : PINID
- *
- * We assume that if bits 31-16 are 0 then it's an older
- * K-series MCU.
- */
-
- #define KINETIS_SOPT1_RAMSIZE_MASK 0x0000F000
- #define KINETIS_SOPT1_RAMSIZE_K24FN1M 0x0000B000
-
- #define KINETIS_SDID_K_SERIES_MASK 0x0000FFFF
-
- #define KINETIS_SDID_DIEID_MASK 0x00000F80
-
- #define KINETIS_SDID_DIEID_K22FN128 0x00000680 /* smaller pflash with FTFA */
- #define KINETIS_SDID_DIEID_K22FN256 0x00000A80
- #define KINETIS_SDID_DIEID_K22FN512 0x00000E80
- #define KINETIS_SDID_DIEID_K24FN256 0x00000700
-
- #define KINETIS_SDID_DIEID_K24FN1M 0x00000300 /* Detect Errata 7534 */
-
- /* We can't rely solely on the FAMID field to determine the MCU
- * type since some FAMID values identify multiple MCUs with
- * different flash sector sizes (K20 and K22 for instance).
- * Therefore we combine it with the DIEID bits which may possibly
- * break if Freescale bumps the DIEID for a particular MCU. */
- #define KINETIS_K_SDID_TYPE_MASK 0x00000FF0
- #define KINETIS_K_SDID_K10_M50 0x00000000
- #define KINETIS_K_SDID_K10_M72 0x00000080
- #define KINETIS_K_SDID_K10_M100 0x00000100
- #define KINETIS_K_SDID_K10_M120 0x00000180
- #define KINETIS_K_SDID_K11 0x00000220
- #define KINETIS_K_SDID_K12 0x00000200
- #define KINETIS_K_SDID_K20_M50 0x00000010
- #define KINETIS_K_SDID_K20_M72 0x00000090
- #define KINETIS_K_SDID_K20_M100 0x00000110
- #define KINETIS_K_SDID_K20_M120 0x00000190
- #define KINETIS_K_SDID_K21_M50 0x00000230
- #define KINETIS_K_SDID_K21_M120 0x00000330
- #define KINETIS_K_SDID_K22_M50 0x00000210
- #define KINETIS_K_SDID_K22_M120 0x00000310
- #define KINETIS_K_SDID_K30_M72 0x000000A0
- #define KINETIS_K_SDID_K30_M100 0x00000120
- #define KINETIS_K_SDID_K40_M72 0x000000B0
- #define KINETIS_K_SDID_K40_M100 0x00000130
- #define KINETIS_K_SDID_K50_M72 0x000000E0
- #define KINETIS_K_SDID_K51_M72 0x000000F0
- #define KINETIS_K_SDID_K53 0x00000170
- #define KINETIS_K_SDID_K60_M100 0x00000140
- #define KINETIS_K_SDID_K60_M150 0x000001C0
- #define KINETIS_K_SDID_K70_M150 0x000001D0
-
- #define KINETIS_SDID_SERIESID_MASK 0x00F00000
- #define KINETIS_SDID_SERIESID_K 0x00000000
- #define KINETIS_SDID_SERIESID_KL 0x00100000
- #define KINETIS_SDID_SERIESID_KW 0x00500000
- #define KINETIS_SDID_SERIESID_KV 0x00600000
-
- #define KINETIS_SDID_SUBFAMID_MASK 0x0F000000
- #define KINETIS_SDID_SUBFAMID_KX0 0x00000000
- #define KINETIS_SDID_SUBFAMID_KX1 0x01000000
- #define KINETIS_SDID_SUBFAMID_KX2 0x02000000
- #define KINETIS_SDID_SUBFAMID_KX3 0x03000000
- #define KINETIS_SDID_SUBFAMID_KX4 0x04000000
- #define KINETIS_SDID_SUBFAMID_KX5 0x05000000
- #define KINETIS_SDID_SUBFAMID_KX6 0x06000000
-
- #define KINETIS_SDID_FAMILYID_MASK 0xF0000000
- #define KINETIS_SDID_FAMILYID_K0X 0x00000000
- #define KINETIS_SDID_FAMILYID_K1X 0x10000000
- #define KINETIS_SDID_FAMILYID_K2X 0x20000000
- #define KINETIS_SDID_FAMILYID_K3X 0x30000000
- #define KINETIS_SDID_FAMILYID_K4X 0x40000000
- #define KINETIS_SDID_FAMILYID_K6X 0x60000000
- #define KINETIS_SDID_FAMILYID_K7X 0x70000000
-
- struct kinetis_flash_bank {
- bool probed;
- uint32_t sector_size;
- uint32_t max_flash_prog_size;
- uint32_t protection_size;
- uint32_t prog_base; /* base address for FTFx operations */
- /* same as bank->base for pflash, differs for FlexNVM */
- uint32_t protection_block; /* number of first protection block in this bank */
-
- uint32_t sim_sdid;
- uint32_t sim_fcfg1;
- uint32_t sim_fcfg2;
-
- enum {
- FC_AUTO = 0,
- FC_PFLASH,
- FC_FLEX_NVM,
- FC_FLEX_RAM,
- } flash_class;
-
- enum {
- FS_PROGRAM_SECTOR = 1,
- FS_PROGRAM_LONGWORD = 2,
- FS_PROGRAM_PHRASE = 4, /* Unsupported */
- FS_INVALIDATE_CACHE = 8,
- } flash_support;
- };
-
- #define MDM_AP 1
-
- #define MDM_REG_STAT 0x00
- #define MDM_REG_CTRL 0x04
- #define MDM_REG_ID 0xfc
-
- #define MDM_STAT_FMEACK (1<<0)
- #define MDM_STAT_FREADY (1<<1)
- #define MDM_STAT_SYSSEC (1<<2)
- #define MDM_STAT_SYSRES (1<<3)
- #define MDM_STAT_FMEEN (1<<5)
- #define MDM_STAT_BACKDOOREN (1<<6)
- #define MDM_STAT_LPEN (1<<7)
- #define MDM_STAT_VLPEN (1<<8)
- #define MDM_STAT_LLSMODEXIT (1<<9)
- #define MDM_STAT_VLLSXMODEXIT (1<<10)
- #define MDM_STAT_CORE_HALTED (1<<16)
- #define MDM_STAT_CORE_SLEEPDEEP (1<<17)
- #define MDM_STAT_CORESLEEPING (1<<18)
-
- #define MDM_CTRL_FMEIP (1<<0)
- #define MDM_CTRL_DBG_DIS (1<<1)
- #define MDM_CTRL_DBG_REQ (1<<2)
- #define MDM_CTRL_SYS_RES_REQ (1<<3)
- #define MDM_CTRL_CORE_HOLD_RES (1<<4)
- #define MDM_CTRL_VLLSX_DBG_REQ (1<<5)
- #define MDM_CTRL_VLLSX_DBG_ACK (1<<6)
- #define MDM_CTRL_VLLSX_STAT_ACK (1<<7)
-
- #define MDM_ACCESS_TIMEOUT 500 /* msec */
-
-
- static bool allow_fcf_writes;
- static uint8_t fcf_fopt = 0xff;
-
-
- struct flash_driver kinetis_flash;
- static int kinetis_write_inner(struct flash_bank *bank, const uint8_t *buffer,
- uint32_t offset, uint32_t count);
- static int kinetis_auto_probe(struct flash_bank *bank);
-
-
- static int kinetis_mdm_write_register(struct adiv5_dap *dap, unsigned reg, uint32_t value)
- {
- int retval;
- LOG_DEBUG("MDM_REG[0x%02x] <- %08" PRIX32, reg, value);
-
- retval = dap_queue_ap_write(dap_ap(dap, MDM_AP), reg, value);
- if (retval != ERROR_OK) {
- LOG_DEBUG("MDM: failed to queue a write request");
- return retval;
- }
-
- retval = dap_run(dap);
- if (retval != ERROR_OK) {
- LOG_DEBUG("MDM: dap_run failed");
- return retval;
- }
-
-
- return ERROR_OK;
- }
-
- static int kinetis_mdm_read_register(struct adiv5_dap *dap, unsigned reg, uint32_t *result)
- {
- int retval;
-
- retval = dap_queue_ap_read(dap_ap(dap, MDM_AP), reg, result);
- if (retval != ERROR_OK) {
- LOG_DEBUG("MDM: failed to queue a read request");
- return retval;
- }
-
- retval = dap_run(dap);
- if (retval != ERROR_OK) {
- LOG_DEBUG("MDM: dap_run failed");
- return retval;
- }
-
- LOG_DEBUG("MDM_REG[0x%02x]: %08" PRIX32, reg, *result);
- return ERROR_OK;
- }
-
- static int kinetis_mdm_poll_register(struct adiv5_dap *dap, unsigned reg,
- uint32_t mask, uint32_t value, uint32_t timeout_ms)
- {
- uint32_t val;
- int retval;
- int64_t ms_timeout = timeval_ms() + timeout_ms;
-
- do {
- retval = kinetis_mdm_read_register(dap, reg, &val);
- if (retval != ERROR_OK || (val & mask) == value)
- return retval;
-
- alive_sleep(1);
- } while (timeval_ms() < ms_timeout);
-
- LOG_DEBUG("MDM: polling timed out");
- return ERROR_FAIL;
- }
-
- /*
- * This command can be used to break a watchdog reset loop when
- * connecting to an unsecured target. Unlike other commands, halt will
- * automatically retry as it does not know how far into the boot process
- * it is when the command is called.
- */
- COMMAND_HANDLER(kinetis_mdm_halt)
- {
- struct target *target = get_current_target(CMD_CTX);
- struct cortex_m_common *cortex_m = target_to_cm(target);
- struct adiv5_dap *dap = cortex_m->armv7m.arm.dap;
- int retval;
- int tries = 0;
- uint32_t stat;
- int64_t ms_timeout = timeval_ms() + MDM_ACCESS_TIMEOUT;
-
- if (!dap) {
- LOG_ERROR("Cannot perform halt with a high-level adapter");
- return ERROR_FAIL;
- }
-
- while (true) {
- tries++;
-
- kinetis_mdm_write_register(dap, MDM_REG_CTRL, MDM_CTRL_CORE_HOLD_RES);
-
- alive_sleep(1);
-
- retval = kinetis_mdm_read_register(dap, MDM_REG_STAT, &stat);
- if (retval != ERROR_OK) {
- LOG_DEBUG("MDM: failed to read MDM_REG_STAT");
- continue;
- }
-
- /* Repeat setting MDM_CTRL_CORE_HOLD_RES until system is out of
- * reset with flash ready and without security
- */
- if ((stat & (MDM_STAT_FREADY | MDM_STAT_SYSSEC | MDM_STAT_SYSRES))
- == (MDM_STAT_FREADY | MDM_STAT_SYSRES))
- break;
-
- if (timeval_ms() >= ms_timeout) {
- LOG_ERROR("MDM: halt timed out");
- return ERROR_FAIL;
- }
- }
-
- LOG_DEBUG("MDM: halt succeded after %d attempts.", tries);
-
- target_poll(target);
- /* enable polling in case kinetis_check_flash_security_status disabled it */
- jtag_poll_set_enabled(true);
-
- alive_sleep(100);
-
- target->reset_halt = true;
- target->type->assert_reset(target);
-
- retval = kinetis_mdm_write_register(dap, MDM_REG_CTRL, 0);
- if (retval != ERROR_OK) {
- LOG_ERROR("MDM: failed to clear MDM_REG_CTRL");
- return retval;
- }
-
- target->type->deassert_reset(target);
-
- return ERROR_OK;
- }
-
- COMMAND_HANDLER(kinetis_mdm_reset)
- {
- struct target *target = get_current_target(CMD_CTX);
- struct cortex_m_common *cortex_m = target_to_cm(target);
- struct adiv5_dap *dap = cortex_m->armv7m.arm.dap;
- int retval;
-
- if (!dap) {
- LOG_ERROR("Cannot perform reset with a high-level adapter");
- return ERROR_FAIL;
- }
-
- retval = kinetis_mdm_write_register(dap, MDM_REG_CTRL, MDM_CTRL_SYS_RES_REQ);
- if (retval != ERROR_OK) {
- LOG_ERROR("MDM: failed to write MDM_REG_CTRL");
- return retval;
- }
-
- retval = kinetis_mdm_poll_register(dap, MDM_REG_STAT, MDM_STAT_SYSRES, 0, 500);
- if (retval != ERROR_OK) {
- LOG_ERROR("MDM: failed to assert reset");
- return retval;
- }
-
- retval = kinetis_mdm_write_register(dap, MDM_REG_CTRL, 0);
- if (retval != ERROR_OK) {
- LOG_ERROR("MDM: failed to clear MDM_REG_CTRL");
- return retval;
- }
-
- return ERROR_OK;
- }
-
- /*
- * This function implements the procedure to mass erase the flash via
- * SWD/JTAG on Kinetis K and L series of devices as it is described in
- * AN4835 "Production Flash Programming Best Practices for Kinetis K-
- * and L-series MCUs" Section 4.2.1. To prevent a watchdog reset loop,
- * the core remains halted after this function completes as suggested
- * by the application note.
- */
- COMMAND_HANDLER(kinetis_mdm_mass_erase)
- {
- struct target *target = get_current_target(CMD_CTX);
- struct cortex_m_common *cortex_m = target_to_cm(target);
- struct adiv5_dap *dap = cortex_m->armv7m.arm.dap;
-
- if (!dap) {
- LOG_ERROR("Cannot perform mass erase with a high-level adapter");
- return ERROR_FAIL;
- }
-
- int retval;
-
- /*
- * ... Power on the processor, or if power has already been
- * applied, assert the RESET pin to reset the processor. For
- * devices that do not have a RESET pin, write the System
- * Reset Request bit in the MDM-AP control register after
- * establishing communication...
- */
-
- /* assert SRST if configured */
- bool has_srst = jtag_get_reset_config() & RESET_HAS_SRST;
- if (has_srst)
- adapter_assert_reset();
-
- retval = kinetis_mdm_write_register(dap, MDM_REG_CTRL, MDM_CTRL_SYS_RES_REQ);
- if (retval != ERROR_OK && !has_srst) {
- LOG_ERROR("MDM: failed to assert reset");
- goto deassert_reset_and_exit;
- }
-
- /*
- * ... Read the MDM-AP status register repeatedly and wait for
- * stable conditions suitable for mass erase:
- * - mass erase is enabled
- * - flash is ready
- * - reset is finished
- *
- * Mass erase is started as soon as all conditions are met in 32
- * subsequent status reads.
- *
- * In case of not stable conditions (RESET/WDOG loop in secured device)
- * the user is asked for manual pressing of RESET button
- * as a last resort.
- */
- int cnt_mass_erase_disabled = 0;
- int cnt_ready = 0;
- int64_t ms_start = timeval_ms();
- bool man_reset_requested = false;
-
- do {
- uint32_t stat = 0;
- int64_t ms_elapsed = timeval_ms() - ms_start;
-
- if (!man_reset_requested && ms_elapsed > 100) {
- LOG_INFO("MDM: Press RESET button now if possible.");
- man_reset_requested = true;
- }
-
- if (ms_elapsed > 3000) {
- LOG_ERROR("MDM: waiting for mass erase conditions timed out.");
- LOG_INFO("Mass erase of a secured MCU is not possible without hardware reset.");
- LOG_INFO("Connect SRST, use 'reset_config srst_only' and retry.");
- goto deassert_reset_and_exit;
- }
- retval = kinetis_mdm_read_register(dap, MDM_REG_STAT, &stat);
- if (retval != ERROR_OK) {
- cnt_ready = 0;
- continue;
- }
-
- if (!(stat & MDM_STAT_FMEEN)) {
- cnt_ready = 0;
- cnt_mass_erase_disabled++;
- if (cnt_mass_erase_disabled > 10) {
- LOG_ERROR("MDM: mass erase is disabled");
- goto deassert_reset_and_exit;
- }
- continue;
- }
-
- if ((stat & (MDM_STAT_FREADY | MDM_STAT_SYSRES)) == MDM_STAT_FREADY)
- cnt_ready++;
- else
- cnt_ready = 0;
-
- } while (cnt_ready < 32);
-
- /*
- * ... Write the MDM-AP control register to set the Flash Mass
- * Erase in Progress bit. This will start the mass erase
- * process...
- */
- retval = kinetis_mdm_write_register(dap, MDM_REG_CTRL, MDM_CTRL_SYS_RES_REQ | MDM_CTRL_FMEIP);
- if (retval != ERROR_OK) {
- LOG_ERROR("MDM: failed to start mass erase");
- goto deassert_reset_and_exit;
- }
-
- /*
- * ... Read the MDM-AP control register until the Flash Mass
- * Erase in Progress bit clears...
- * Data sheed defines erase time <3.6 sec/512kB flash block.
- * The biggest device has 4 pflash blocks => timeout 16 sec.
- */
- retval = kinetis_mdm_poll_register(dap, MDM_REG_CTRL, MDM_CTRL_FMEIP, 0, 16000);
- if (retval != ERROR_OK) {
- LOG_ERROR("MDM: mass erase timeout");
- goto deassert_reset_and_exit;
- }
-
- target_poll(target);
- /* enable polling in case kinetis_check_flash_security_status disabled it */
- jtag_poll_set_enabled(true);
-
- alive_sleep(100);
-
- target->reset_halt = true;
- target->type->assert_reset(target);
-
- /*
- * ... Negate the RESET signal or clear the System Reset Request
- * bit in the MDM-AP control register.
- */
- retval = kinetis_mdm_write_register(dap, MDM_REG_CTRL, 0);
- if (retval != ERROR_OK)
- LOG_ERROR("MDM: failed to clear MDM_REG_CTRL");
-
- target->type->deassert_reset(target);
-
- return retval;
-
- deassert_reset_and_exit:
- kinetis_mdm_write_register(dap, MDM_REG_CTRL, 0);
- if (has_srst)
- adapter_deassert_reset();
- return retval;
- }
-
- static const uint32_t kinetis_known_mdm_ids[] = {
- 0x001C0000, /* Kinetis-K Series */
- 0x001C0020, /* Kinetis-L/M/V/E Series */
- };
-
- /*
- * This function implements the procedure to connect to
- * SWD/JTAG on Kinetis K and L series of devices as it is described in
- * AN4835 "Production Flash Programming Best Practices for Kinetis K-
- * and L-series MCUs" Section 4.1.1
- */
- COMMAND_HANDLER(kinetis_check_flash_security_status)
- {
- struct target *target = get_current_target(CMD_CTX);
- struct cortex_m_common *cortex_m = target_to_cm(target);
- struct adiv5_dap *dap = cortex_m->armv7m.arm.dap;
-
- if (!dap) {
- LOG_WARNING("Cannot check flash security status with a high-level adapter");
- return ERROR_OK;
- }
-
- if (!dap->ops)
- return ERROR_OK; /* too early to check, in JTAG mode ops may not be initialised */
-
- uint32_t val;
- int retval;
-
- /*
- * ... The MDM-AP ID register can be read to verify that the
- * connection is working correctly...
- */
- retval = kinetis_mdm_read_register(dap, MDM_REG_ID, &val);
- if (retval != ERROR_OK) {
- LOG_ERROR("MDM: failed to read ID register");
- return ERROR_OK;
- }
-
- if (val == 0)
- return ERROR_OK; /* dap not yet initialised */
-
- bool found = false;
- for (size_t i = 0; i < ARRAY_SIZE(kinetis_known_mdm_ids); i++) {
- if (val == kinetis_known_mdm_ids[i]) {
- found = true;
- break;
- }
- }
-
- if (!found)
- LOG_WARNING("MDM: unknown ID %08" PRIX32, val);
-
- /*
- * ... Read the System Security bit to determine if security is enabled.
- * If System Security = 0, then proceed. If System Security = 1, then
- * communication with the internals of the processor, including the
- * flash, will not be possible without issuing a mass erase command or
- * unsecuring the part through other means (backdoor key unlock)...
- */
- retval = kinetis_mdm_read_register(dap, MDM_REG_STAT, &val);
- if (retval != ERROR_OK) {
- LOG_ERROR("MDM: failed to read MDM_REG_STAT");
- return ERROR_OK;
- }
-
- /*
- * System Security bit is also active for short time during reset.
- * If a MCU has blank flash and runs in RESET/WDOG loop,
- * System Security bit is active most of time!
- * We should observe Flash Ready bit and read status several times
- * to avoid false detection of secured MCU
- */
- int secured_score = 0, flash_not_ready_score = 0;
-
- if ((val & (MDM_STAT_SYSSEC | MDM_STAT_FREADY)) != MDM_STAT_FREADY) {
- uint32_t stats[32];
- int i;
-
- for (i = 0; i < 32; i++) {
- stats[i] = MDM_STAT_FREADY;
- dap_queue_ap_read(dap_ap(dap, MDM_AP), MDM_REG_STAT, &stats[i]);
- }
- retval = dap_run(dap);
- if (retval != ERROR_OK) {
- LOG_DEBUG("MDM: dap_run failed when validating secured state");
- return ERROR_OK;
- }
- for (i = 0; i < 32; i++) {
- if (stats[i] & MDM_STAT_SYSSEC)
- secured_score++;
- if (!(stats[i] & MDM_STAT_FREADY))
- flash_not_ready_score++;
- }
- }
-
- if (flash_not_ready_score <= 8 && secured_score > 24) {
- jtag_poll_set_enabled(false);
-
- LOG_WARNING("*********** ATTENTION! ATTENTION! ATTENTION! ATTENTION! **********");
- LOG_WARNING("**** ****");
- LOG_WARNING("**** Your Kinetis MCU is in secured state, which means that, ****");
- LOG_WARNING("**** with exception for very basic communication, JTAG/SWD ****");
- LOG_WARNING("**** interface will NOT work. In order to restore its ****");
- LOG_WARNING("**** functionality please issue 'kinetis mdm mass_erase' ****");
- LOG_WARNING("**** command, power cycle the MCU and restart OpenOCD. ****");
- LOG_WARNING("**** ****");
- LOG_WARNING("*********** ATTENTION! ATTENTION! ATTENTION! ATTENTION! **********");
-
- } else if (flash_not_ready_score > 24) {
- jtag_poll_set_enabled(false);
- LOG_WARNING("**** Your Kinetis MCU is probably locked-up in RESET/WDOG loop. ****");
- LOG_WARNING("**** Common reason is a blank flash (at least a reset vector). ****");
- LOG_WARNING("**** Issue 'kinetis mdm halt' command or if SRST is connected ****");
- LOG_WARNING("**** and configured, use 'reset halt' ****");
- LOG_WARNING("**** If MCU cannot be halted, it is likely secured and running ****");
- LOG_WARNING("**** in RESET/WDOG loop. Issue 'kinetis mdm mass_erase' ****");
-
- } else {
- LOG_INFO("MDM: Chip is unsecured. Continuing.");
- jtag_poll_set_enabled(true);
- }
-
- return ERROR_OK;
- }
-
- FLASH_BANK_COMMAND_HANDLER(kinetis_flash_bank_command)
- {
- struct kinetis_flash_bank *bank_info;
-
- if (CMD_ARGC < 6)
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- LOG_INFO("add flash_bank kinetis %s", bank->name);
-
- bank_info = malloc(sizeof(struct kinetis_flash_bank));
-
- memset(bank_info, 0, sizeof(struct kinetis_flash_bank));
-
- bank->driver_priv = bank_info;
-
- return ERROR_OK;
- }
-
- /* Disable the watchdog on Kinetis devices */
- int kinetis_disable_wdog(struct target *target, uint32_t sim_sdid)
- {
- struct working_area *wdog_algorithm;
- struct armv7m_algorithm armv7m_info;
- uint16_t wdog;
- int retval;
-
- static const uint8_t kinetis_unlock_wdog_code[] = {
- #include "../../../contrib/loaders/watchdog/armv7m_kinetis_wdog.inc"
- };
-
- /* Decide whether the connected device needs watchdog disabling.
- * Disable for all Kx and KVx devices, return if it is a KLx */
-
- if ((sim_sdid & KINETIS_SDID_SERIESID_MASK) == KINETIS_SDID_SERIESID_KL)
- return ERROR_OK;
-
- /* The connected device requires watchdog disabling. */
- retval = target_read_u16(target, WDOG_STCTRH, &wdog);
- if (retval != ERROR_OK)
- return retval;
-
- if ((wdog & 0x1) == 0) {
- /* watchdog already disabled */
- return ERROR_OK;
- }
- LOG_INFO("Disabling Kinetis watchdog (initial WDOG_STCTRLH = 0x%x)", wdog);
-
- if (target->state != TARGET_HALTED) {
- LOG_ERROR("Target not halted");
- return ERROR_TARGET_NOT_HALTED;
- }
-
- retval = target_alloc_working_area(target, sizeof(kinetis_unlock_wdog_code), &wdog_algorithm);
- if (retval != ERROR_OK)
- return retval;
-
- retval = target_write_buffer(target, wdog_algorithm->address,
- sizeof(kinetis_unlock_wdog_code), (uint8_t *)kinetis_unlock_wdog_code);
- if (retval != ERROR_OK) {
- target_free_working_area(target, wdog_algorithm);
- return retval;
- }
-
- armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
- armv7m_info.core_mode = ARM_MODE_THREAD;
-
- retval = target_run_algorithm(target, 0, NULL, 0, NULL, wdog_algorithm->address,
- wdog_algorithm->address + (sizeof(kinetis_unlock_wdog_code) - 2),
- 10000, &armv7m_info);
-
- if (retval != ERROR_OK)
- LOG_ERROR("error executing kinetis wdog unlock algorithm");
-
- retval = target_read_u16(target, WDOG_STCTRH, &wdog);
- if (retval != ERROR_OK)
- return retval;
- LOG_INFO("WDOG_STCTRLH = 0x%x", wdog);
-
- target_free_working_area(target, wdog_algorithm);
-
- return retval;
- }
-
- COMMAND_HANDLER(kinetis_disable_wdog_handler)
- {
- int result;
- uint32_t sim_sdid;
- struct target *target = get_current_target(CMD_CTX);
-
- if (CMD_ARGC > 0)
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- result = target_read_u32(target, SIM_SDID, &sim_sdid);
- if (result != ERROR_OK) {
- LOG_ERROR("Failed to read SIMSDID");
- return result;
- }
-
- result = kinetis_disable_wdog(target, sim_sdid);
- return result;
- }
-
-
- static int kinetis_ftfx_decode_error(uint8_t fstat)
- {
- if (fstat & 0x20) {
- LOG_ERROR("Flash operation failed, illegal command");
- return ERROR_FLASH_OPER_UNSUPPORTED;
-
- } else if (fstat & 0x10)
- LOG_ERROR("Flash operation failed, protection violated");
-
- else if (fstat & 0x40)
- LOG_ERROR("Flash operation failed, read collision");
-
- else if (fstat & 0x80)
- return ERROR_OK;
-
- else
- LOG_ERROR("Flash operation timed out");
-
- return ERROR_FLASH_OPERATION_FAILED;
- }
-
-
- static int kinetis_ftfx_prepare(struct target *target)
- {
- int result, i;
- uint8_t fstat;
-
- /* wait until busy */
- for (i = 0; i < 50; i++) {
- result = target_read_u8(target, FTFx_FSTAT, &fstat);
- if (result != ERROR_OK)
- return result;
-
- if (fstat & 0x80)
- break;
- }
-
- if ((fstat & 0x80) == 0) {
- LOG_ERROR("Flash controller is busy");
- return ERROR_FLASH_OPERATION_FAILED;
- }
- if (fstat != 0x80) {
- /* reset error flags */
- result = target_write_u8(target, FTFx_FSTAT, 0x70);
- }
- return result;
- }
-
- /* Kinetis Program-LongWord Microcodes */
- static const uint8_t kinetis_flash_write_code[] = {
- #include "../../../contrib/loaders/flash/kinetis/kinetis_flash.inc"
- };
-
- /* Program LongWord Block Write */
- static int kinetis_write_block(struct flash_bank *bank, const uint8_t *buffer,
- uint32_t offset, uint32_t wcount)
- {
- struct target *target = bank->target;
- uint32_t buffer_size = 2048; /* Default minimum value */
- struct working_area *write_algorithm;
- struct working_area *source;
- struct kinetis_flash_bank *kinfo = bank->driver_priv;
- uint32_t address = kinfo->prog_base + offset;
- uint32_t end_address;
- struct reg_param reg_params[5];
- struct armv7m_algorithm armv7m_info;
- int retval;
- uint8_t fstat;
-
- /* Increase buffer_size if needed */
- if (buffer_size < (target->working_area_size/2))
- buffer_size = (target->working_area_size/2);
-
- /* allocate working area with flash programming code */
- if (target_alloc_working_area(target, sizeof(kinetis_flash_write_code),
- &write_algorithm) != ERROR_OK) {
- LOG_WARNING("no working area available, can't do block memory writes");
- return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
- }
-
- retval = target_write_buffer(target, write_algorithm->address,
- sizeof(kinetis_flash_write_code), kinetis_flash_write_code);
- if (retval != ERROR_OK)
- return retval;
-
- /* memory buffer */
- while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK) {
- buffer_size /= 4;
- if (buffer_size <= 256) {
- /* free working area, write algorithm already allocated */
- target_free_working_area(target, write_algorithm);
-
- LOG_WARNING("No large enough working area available, can't do block memory writes");
- return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
- }
- }
-
- armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
- armv7m_info.core_mode = ARM_MODE_THREAD;
-
- init_reg_param(®_params[0], "r0", 32, PARAM_IN_OUT); /* address */
- init_reg_param(®_params[1], "r1", 32, PARAM_OUT); /* word count */
- init_reg_param(®_params[2], "r2", 32, PARAM_OUT);
- init_reg_param(®_params[3], "r3", 32, PARAM_OUT);
- init_reg_param(®_params[4], "r4", 32, PARAM_OUT);
-
- buf_set_u32(reg_params[0].value, 0, 32, address);
- buf_set_u32(reg_params[1].value, 0, 32, wcount);
- buf_set_u32(reg_params[2].value, 0, 32, source->address);
- buf_set_u32(reg_params[3].value, 0, 32, source->address + source->size);
- buf_set_u32(reg_params[4].value, 0, 32, FTFx_FSTAT);
-
- retval = target_run_flash_async_algorithm(target, buffer, wcount, 4,
- 0, NULL,
- 5, reg_params,
- source->address, source->size,
- write_algorithm->address, 0,
- &armv7m_info);
-
- if (retval == ERROR_FLASH_OPERATION_FAILED) {
- end_address = buf_get_u32(reg_params[0].value, 0, 32);
-
- LOG_ERROR("Error writing flash at %08" PRIx32, end_address);
-
- retval = target_read_u8(target, FTFx_FSTAT, &fstat);
- if (retval == ERROR_OK) {
- retval = kinetis_ftfx_decode_error(fstat);
-
- /* reset error flags */
- target_write_u8(target, FTFx_FSTAT, 0x70);
- }
- } else if (retval != ERROR_OK)
- LOG_ERROR("Error executing kinetis Flash programming algorithm");
-
- target_free_working_area(target, source);
- target_free_working_area(target, write_algorithm);
-
- destroy_reg_param(®_params[0]);
- destroy_reg_param(®_params[1]);
- destroy_reg_param(®_params[2]);
- destroy_reg_param(®_params[3]);
- destroy_reg_param(®_params[4]);
-
- return retval;
- }
-
- static int kinetis_protect(struct flash_bank *bank, int set, int first, int last)
- {
- int i;
-
- if (allow_fcf_writes) {
- LOG_ERROR("Protection setting is possible with 'kinetis fcf_source protection' only!");
- return ERROR_FAIL;
- }
-
- if (!bank->prot_blocks || bank->num_prot_blocks == 0) {
- LOG_ERROR("No protection possible for current bank!");
- return ERROR_FLASH_BANK_INVALID;
- }
-
- for (i = first; i < bank->num_prot_blocks && i <= last; i++)
- bank->prot_blocks[i].is_protected = set;
-
- LOG_INFO("Protection bits will be written at the next FCF sector erase or write.");
- LOG_INFO("Do not issue 'flash info' command until protection is written,");
- LOG_INFO("doing so would re-read protection status from MCU.");
-
- return ERROR_OK;
- }
-
- static int kinetis_protect_check(struct flash_bank *bank)
- {
- struct kinetis_flash_bank *kinfo = bank->driver_priv;
- int result;
- int i, b;
- uint32_t fprot;
-
- if (kinfo->flash_class == FC_PFLASH) {
-
- /* read protection register */
- result = target_read_u32(bank->target, FTFx_FPROT3, &fprot);
- if (result != ERROR_OK)
- return result;
-
- /* Every bit protects 1/32 of the full flash (not necessarily just this bank) */
-
- } else if (kinfo->flash_class == FC_FLEX_NVM) {
- uint8_t fdprot;
-
- /* read protection register */
- result = target_read_u8(bank->target, FTFx_FDPROT, &fdprot);
- if (result != ERROR_OK)
- return result;
-
- fprot = fdprot;
-
- } else {
- LOG_ERROR("Protection checks for FlexRAM not supported");
- return ERROR_FLASH_BANK_INVALID;
- }
-
- b = kinfo->protection_block;
- for (i = 0; i < bank->num_prot_blocks; i++) {
- if ((fprot >> b) & 1)
- bank->prot_blocks[i].is_protected = 0;
- else
- bank->prot_blocks[i].is_protected = 1;
-
- b++;
- }
-
- return ERROR_OK;
- }
-
-
- static int kinetis_fill_fcf(struct flash_bank *bank, uint8_t *fcf)
- {
- uint32_t fprot = 0xffffffff;
- uint8_t fsec = 0xfe; /* set MCU unsecure */
- uint8_t fdprot = 0xff;
- int i;
- uint32_t pflash_bit;
- uint8_t dflash_bit;
- struct flash_bank *bank_iter;
- struct kinetis_flash_bank *kinfo;
-
- memset(fcf, 0xff, FCF_SIZE);
-
- pflash_bit = 1;
- dflash_bit = 1;
-
- /* iterate over all kinetis banks */
- /* current bank is bank 0, it contains FCF */
- for (bank_iter = bank; bank_iter; bank_iter = bank_iter->next) {
- if (bank_iter->driver != &kinetis_flash
- || bank_iter->target != bank->target)
- continue;
-
- kinetis_auto_probe(bank_iter);
-
- kinfo = bank->driver_priv;
- if (!kinfo)
- continue;
-
- if (kinfo->flash_class == FC_PFLASH) {
- for (i = 0; i < bank_iter->num_prot_blocks; i++) {
- if (bank_iter->prot_blocks[i].is_protected == 1)
- fprot &= ~pflash_bit;
-
- pflash_bit <<= 1;
- }
-
- } else if (kinfo->flash_class == FC_FLEX_NVM) {
- for (i = 0; i < bank_iter->num_prot_blocks; i++) {
- if (bank_iter->prot_blocks[i].is_protected == 1)
- fdprot &= ~dflash_bit;
-
- dflash_bit <<= 1;
- }
-
- }
- }
-
- target_buffer_set_u32(bank->target, fcf + FCF_FPROT, fprot);
- fcf[FCF_FSEC] = fsec;
- fcf[FCF_FOPT] = fcf_fopt;
- fcf[FCF_FDPROT] = fdprot;
- return ERROR_OK;
- }
-
- 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)
- {
- uint8_t command[12] = {faddr & 0xff, (faddr >> 8) & 0xff, (faddr >> 16) & 0xff, fcmd,
- fccob7, fccob6, fccob5, fccob4,
- fccobb, fccoba, fccob9, fccob8};
- int result;
- uint8_t fstat;
- int64_t ms_timeout = timeval_ms() + 250;
-
- result = target_write_memory(target, FTFx_FCCOB3, 4, 3, command);
- if (result != ERROR_OK)
- return result;
-
- /* start command */
- result = target_write_u8(target, FTFx_FSTAT, 0x80);
- if (result != ERROR_OK)
- return result;
-
- /* wait for done */
- do {
- result = target_read_u8(target, FTFx_FSTAT, &fstat);
-
- if (result != ERROR_OK)
- return result;
-
- if (fstat & 0x80)
- break;
-
- } while (timeval_ms() < ms_timeout);
-
- if (ftfx_fstat)
- *ftfx_fstat = fstat;
-
- if ((fstat & 0xf0) != 0x80) {
- LOG_DEBUG("ftfx command failed FSTAT: %02X FCCOB: %02X%02X%02X%02X %02X%02X%02X%02X %02X%02X%02X%02X",
- fstat, command[3], command[2], command[1], command[0],
- command[7], command[6], command[5], command[4],
- command[11], command[10], command[9], command[8]);
-
- return kinetis_ftfx_decode_error(fstat);
- }
-
- return ERROR_OK;
- }
-
-
- static int kinetis_check_run_mode(struct target *target)
- {
- int result, i;
- uint8_t pmctrl, pmstat;
-
- 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;
-
- if (pmstat == PM_STAT_RUN)
- return ERROR_OK;
-
- 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;
- }
- }
-
- 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;
-
- result = kinetis_check_run_mode(bank->target);
- if (result != ERROR_OK)
- return result;
-
- /* reset error flags */
- result = kinetis_ftfx_prepare(bank->target);
- if (result != ERROR_OK)
- return result;
-
- if ((first > bank->num_sectors) || (last > bank->num_sectors))
- return ERROR_FLASH_OPERATION_FAILED;
-
- /*
- * FIXME: TODO: use the 'Erase Flash Block' command if the
- * requested erase is PFlash or NVM and encompasses the entire
- * block. Should be quicker.
- */
- for (i = first; i <= last; i++) {
- /* set command and sector address */
- result = kinetis_ftfx_command(bank->target, FTFx_CMD_SECTERASE, kinfo->prog_base + bank->sectors[i].offset,
- 0, 0, 0, 0, 0, 0, 0, 0, NULL);
-
- if (result != ERROR_OK) {
- LOG_WARNING("erase sector %d failed", i);
- return ERROR_FLASH_OPERATION_FAILED;
- }
-
- bank->sectors[i].is_erased = 1;
-
- if (bank->base == 0
- && bank->sectors[i].offset <= FCF_ADDRESS
- && bank->sectors[i].offset + bank->sectors[i].size > FCF_ADDRESS + FCF_SIZE) {
- if (allow_fcf_writes) {
- LOG_WARNING("Flash Configuration Field erased, DO NOT reset or power off the device");
- LOG_WARNING("until correct FCF is programmed or MCU gets security lock.");
- } else {
- uint8_t fcf_buffer[FCF_SIZE];
-
- kinetis_fill_fcf(bank, fcf_buffer);
- result = kinetis_write_inner(bank, fcf_buffer, FCF_ADDRESS, FCF_SIZE);
- if (result != ERROR_OK)
- LOG_WARNING("Flash Configuration Field write failed");
- bank->sectors[i].is_erased = 0;
- }
- }
- }
-
- kinetis_invalidate_flash_cache(bank);
-
- return ERROR_OK;
- }
-
- static int kinetis_make_ram_ready(struct target *target)
- {
- int result;
- uint8_t ftfx_fcnfg;
-
- /* check if ram ready */
- result = target_read_u8(target, FTFx_FCNFG, &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, NULL);
- if (result != ERROR_OK)
- return ERROR_FLASH_OPERATION_FAILED;
-
- /* check again */
- result = target_read_u8(target, FTFx_FCNFG, &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_sections(struct flash_bank *bank, const uint8_t *buffer,
- uint32_t offset, uint32_t count)
- {
- int result = ERROR_OK;
- struct kinetis_flash_bank *kinfo = bank->driver_priv;
- uint8_t *buffer_aligned = NULL;
- /*
- * Kinetis uses different terms for the granularity of
- * sector writes, e.g. "phrase" or "128 bits". We use
- * the generic term "chunk". The largest possible
- * Kinetis "chunk" is 16 bytes (128 bits).
- */
- uint32_t prog_section_chunk_bytes = kinfo->sector_size >> 8;
- uint32_t prog_size_bytes = kinfo->max_flash_prog_size;
-
- while (count > 0) {
- uint32_t size = prog_size_bytes - offset % prog_size_bytes;
- uint32_t align_begin = offset % prog_section_chunk_bytes;
- uint32_t align_end;
- uint32_t size_aligned;
- uint16_t chunk_count;
- uint8_t ftfx_fstat;
-
- if (size > count)
- size = count;
-
- align_end = (align_begin + size) % prog_section_chunk_bytes;
- if (align_end)
- align_end = prog_section_chunk_bytes - align_end;
-
- size_aligned = align_begin + size + align_end;
- chunk_count = size_aligned / prog_section_chunk_bytes;
-
- if (size != size_aligned) {
- /* aligned section: the first, the last or the only */
- if (!buffer_aligned)
- buffer_aligned = malloc(prog_size_bytes);
-
- memset(buffer_aligned, 0xff, size_aligned);
- memcpy(buffer_aligned + align_begin, buffer, size);
-
- result = target_write_memory(bank->target, FLEXRAM,
- 4, size_aligned / 4, buffer_aligned);
-
- LOG_DEBUG("section @ %08" PRIx32 " aligned begin %" PRIu32 ", end %" PRIu32,
- bank->base + offset, align_begin, align_end);
- } else
- result = target_write_memory(bank->target, FLEXRAM,
- 4, size_aligned / 4, buffer);
-
- LOG_DEBUG("write section @ %08" PRIx32 " with length %" PRIu32 " bytes",
- bank->base + offset, size);
-
- if (result != ERROR_OK) {
- LOG_ERROR("target_write_memory failed");
- break;
- }
-
- /* execute section-write command */
- result = kinetis_ftfx_command(bank->target, FTFx_CMD_SECTWRITE,
- kinfo->prog_base + offset - align_begin,
- chunk_count>>8, chunk_count, 0, 0,
- 0, 0, 0, 0, &ftfx_fstat);
-
- if (result != ERROR_OK) {
- LOG_ERROR("Error writing section at %08" PRIx32, bank->base + offset);
- break;
- }
-
- if (ftfx_fstat & 0x01)
- LOG_ERROR("Flash write error at %08" PRIx32, bank->base + offset);
-
- buffer += size;
- offset += size;
- count -= size;
- }
-
- free(buffer_aligned);
- return result;
- }
-
-
- static int kinetis_write_inner(struct flash_bank *bank, const uint8_t *buffer,
- uint32_t offset, uint32_t count)
- {
- int result, fallback = 0;
- struct kinetis_flash_bank *kinfo = bank->driver_priv;
-
- if (!(kinfo->flash_support & FS_PROGRAM_SECTOR)) {
- /* fallback to longword write */
- fallback = 1;
- LOG_WARNING("This device supports Program Longword execution only.");
- } else {
- result = kinetis_make_ram_ready(bank->target);
- if (result != ERROR_OK) {
- fallback = 1;
- LOG_WARNING("FlexRAM not ready, fallback to slow longword write.");
- }
- }
-
- LOG_DEBUG("flash write @08%" PRIx32, bank->base + offset);
-
- if (fallback == 0) {
- /* program section command */
- kinetis_write_sections(bank, buffer, offset, count);
- }
- else if (kinfo->flash_support & FS_PROGRAM_LONGWORD) {
- /* program longword command, not supported in FTFE */
- uint8_t *new_buffer = NULL;
-
- /* check word alignment */
- if (offset & 0x3) {
- LOG_ERROR("offset 0x%" PRIx32 " breaks the required alignment", offset);
- return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
- }
-
- if (count & 0x3) {
- uint32_t old_count = count;
- count = (old_count | 3) + 1;
- new_buffer = malloc(count);
- if (new_buffer == NULL) {
- LOG_ERROR("odd number of bytes to write and no memory "
- "for padding buffer");
- return ERROR_FAIL;
- }
- LOG_INFO("odd number of bytes to write (%" PRIu32 "), extending to %" PRIu32 " "
- "and padding with 0xff", old_count, count);
- memset(new_buffer + old_count, 0xff, count - old_count);
- buffer = memcpy(new_buffer, buffer, old_count);
- }
-
- uint32_t words_remaining = count / 4;
-
- kinetis_disable_wdog(bank->target, kinfo->sim_sdid);
-
- /* try using a block write */
- result = kinetis_write_block(bank, buffer, offset, words_remaining);
-
- if (result == ERROR_TARGET_RESOURCE_NOT_AVAILABLE) {
- /* if block write failed (no sufficient working area),
- * we use normal (slow) single word accesses */
- LOG_WARNING("couldn't use block writes, falling back to single "
- "memory accesses");
-
- while (words_remaining) {
- uint8_t ftfx_fstat;
-
- LOG_DEBUG("write longword @ %08" PRIx32, (uint32_t)(bank->base + offset));
-
- result = kinetis_ftfx_command(bank->target, FTFx_CMD_LWORDPROG, kinfo->prog_base + offset,
- buffer[3], buffer[2], buffer[1], buffer[0],
- 0, 0, 0, 0, &ftfx_fstat);
-
- if (result != ERROR_OK) {
- LOG_ERROR("Error writing longword at %08" PRIx32, bank->base + offset);
- break;
- }
-
- if (ftfx_fstat & 0x01)
- LOG_ERROR("Flash write error at %08" PRIx32, bank->base + offset);
-
- buffer += 4;
- offset += 4;
- words_remaining--;
- }
- }
- free(new_buffer);
- } else {
- LOG_ERROR("Flash write strategy not implemented");
- return ERROR_FLASH_OPERATION_FAILED;
- }
-
- kinetis_invalidate_flash_cache(bank);
- return result;
- }
-
-
- static int kinetis_write(struct flash_bank *bank, const uint8_t *buffer,
- uint32_t offset, uint32_t count)
- {
- int result;
- bool set_fcf = false;
- int sect = 0;
-
- result = kinetis_check_run_mode(bank->target);
- if (result != ERROR_OK)
- return result;
-
- /* reset error flags */
- result = kinetis_ftfx_prepare(bank->target);
- if (result != ERROR_OK)
- return result;
-
- if (bank->base == 0 && !allow_fcf_writes) {
- if (bank->sectors[1].offset <= FCF_ADDRESS)
- sect = 1; /* 1kb sector, FCF in 2nd sector */
-
- if (offset < bank->sectors[sect].offset + bank->sectors[sect].size
- && offset + count > bank->sectors[sect].offset)
- set_fcf = true; /* write to any part of sector with FCF */
- }
-
- if (set_fcf) {
- uint8_t fcf_buffer[FCF_SIZE];
- uint8_t fcf_current[FCF_SIZE];
-
- kinetis_fill_fcf(bank, fcf_buffer);
-
- if (offset < FCF_ADDRESS) {
- /* write part preceding FCF */
- result = kinetis_write_inner(bank, buffer, offset, FCF_ADDRESS - offset);
- if (result != ERROR_OK)
- return result;
- }
-
- result = target_read_memory(bank->target, FCF_ADDRESS, 4, FCF_SIZE / 4, fcf_current);
- if (result == ERROR_OK && memcmp(fcf_current, fcf_buffer, FCF_SIZE) == 0)
- set_fcf = false;
-
- if (set_fcf) {
- /* write FCF if differs from flash - eliminate multiple writes */
- result = kinetis_write_inner(bank, fcf_buffer, FCF_ADDRESS, FCF_SIZE);
- if (result != ERROR_OK)
- return result;
- }
-
- LOG_WARNING("Flash Configuration Field written.");
- LOG_WARNING("Reset or power off the device to make settings effective.");
-
- if (offset + count > FCF_ADDRESS + FCF_SIZE) {
- uint32_t delta = FCF_ADDRESS + FCF_SIZE - offset;
- /* write part after FCF */
- result = kinetis_write_inner(bank, buffer + delta, FCF_ADDRESS + FCF_SIZE, count - delta);
- }
- return result;
-
- } else
- /* no FCF fiddling, normal write */
- return kinetis_write_inner(bank, buffer, offset, count);
- }
-
-
- static int kinetis_probe(struct flash_bank *bank)
- {
- int result, i;
- uint8_t fcfg1_nvmsize, fcfg1_pfsize, fcfg1_eesize, fcfg1_depart;
- 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;
- struct target *target = bank->target;
- struct kinetis_flash_bank *kinfo = bank->driver_priv;
-
- kinfo->probed = false;
-
- result = target_read_u32(target, SIM_SDID, &kinfo->sim_sdid);
- if (result != ERROR_OK)
- return result;
-
- if ((kinfo->sim_sdid & (~KINETIS_SDID_K_SERIES_MASK)) == 0) {
- /* older K-series MCU */
- uint32_t mcu_type = kinfo->sim_sdid & KINETIS_K_SDID_TYPE_MASK;
-
- switch (mcu_type) {
- case KINETIS_K_SDID_K10_M50:
- case KINETIS_K_SDID_K20_M50:
- /* 1kB sectors */
- pflash_sector_size_bytes = 1<<10;
- nvm_sector_size_bytes = 1<<10;
- num_blocks = 2;
- 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:
- case KINETIS_K_SDID_K30_M72:
- case KINETIS_K_SDID_K30_M100:
- case KINETIS_K_SDID_K40_M72:
- case KINETIS_K_SDID_K40_M100:
- case KINETIS_K_SDID_K50_M72:
- /* 2kB sectors, 1kB FlexNVM sectors */
- pflash_sector_size_bytes = 2<<10;
- nvm_sector_size_bytes = 1<<10;
- num_blocks = 2;
- 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:
- case KINETIS_K_SDID_K20_M100:
- case KINETIS_K_SDID_K11:
- case KINETIS_K_SDID_K12:
- case KINETIS_K_SDID_K21_M50:
- case KINETIS_K_SDID_K22_M50:
- case KINETIS_K_SDID_K51_M72:
- case KINETIS_K_SDID_K53:
- case KINETIS_K_SDID_K60_M100:
- /* 2kB sectors */
- pflash_sector_size_bytes = 2<<10;
- nvm_sector_size_bytes = 2<<10;
- num_blocks = 2;
- 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:
- /* 4kB sectors (MK21FN1M0, MK21FX512, MK22FN1M0, MK22FX512) */
- pflash_sector_size_bytes = 4<<10;
- 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 | FS_INVALIDATE_CACHE;
- break;
- case KINETIS_K_SDID_K10_M120:
- case KINETIS_K_SDID_K20_M120:
- case KINETIS_K_SDID_K60_M150:
- case KINETIS_K_SDID_K70_M150:
- /* 4kB sectors */
- pflash_sector_size_bytes = 4<<10;
- nvm_sector_size_bytes = 4<<10;
- num_blocks = 4;
- kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR | FS_INVALIDATE_CACHE;
- break;
- default:
- LOG_ERROR("Unsupported K-family FAMID");
- }
- } else {
- /* Newer K-series or KL series MCU */
- switch (kinfo->sim_sdid & KINETIS_SDID_SERIESID_MASK) {
- case KINETIS_SDID_SERIESID_K:
- switch (kinfo->sim_sdid & (KINETIS_SDID_FAMILYID_MASK | KINETIS_SDID_SUBFAMID_MASK)) {
- case KINETIS_SDID_FAMILYID_K0X | KINETIS_SDID_SUBFAMID_KX2:
- /* K02FN64, K02FN128: FTFA, 2kB sectors */
- pflash_sector_size_bytes = 2<<10;
- num_blocks = 1;
- kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_INVALIDATE_CACHE;
- break;
-
- case KINETIS_SDID_FAMILYID_K2X | KINETIS_SDID_SUBFAMID_KX2: {
- /* MK24FN1M reports as K22, this should detect it (according to errata note 1N83J) */
- uint32_t sopt1;
- result = target_read_u32(target, SIM_SOPT1, &sopt1);
- if (result != ERROR_OK)
- return result;
-
- if (((kinfo->sim_sdid & (KINETIS_SDID_DIEID_MASK)) == KINETIS_SDID_DIEID_K24FN1M) &&
- ((sopt1 & KINETIS_SOPT1_RAMSIZE_MASK) == KINETIS_SOPT1_RAMSIZE_K24FN1M)) {
- /* MK24FN1M */
- pflash_sector_size_bytes = 4<<10;
- num_blocks = 2;
- kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR | FS_INVALIDATE_CACHE;
- kinfo->max_flash_prog_size = 1<<10;
- break;
- }
- if ((kinfo->sim_sdid & (KINETIS_SDID_DIEID_MASK)) == KINETIS_SDID_DIEID_K22FN128
- || (kinfo->sim_sdid & (KINETIS_SDID_DIEID_MASK)) == KINETIS_SDID_DIEID_K22FN256
- || (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;
- /* autodetect 1 or 2 blocks */
- kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_INVALIDATE_CACHE;
- break;
- }
- LOG_ERROR("Unsupported Kinetis K22 DIEID");
- break;
- }
- case KINETIS_SDID_FAMILYID_K2X | KINETIS_SDID_SUBFAMID_KX4:
- pflash_sector_size_bytes = 4<<10;
- 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 | FS_INVALIDATE_CACHE;
- break;
- }
- /* K24FN1M without errata 7534 */
- num_blocks = 2;
- kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR | FS_INVALIDATE_CACHE;
- kinfo->max_flash_prog_size = 1<<10;
- break;
-
- case KINETIS_SDID_FAMILYID_K6X | KINETIS_SDID_SUBFAMID_KX3:
- case KINETIS_SDID_FAMILYID_K6X | KINETIS_SDID_SUBFAMID_KX1: /* errata 7534 - should be K63 */
- /* K63FN1M0 */
- case KINETIS_SDID_FAMILYID_K6X | KINETIS_SDID_SUBFAMID_KX4:
- case KINETIS_SDID_FAMILYID_K6X | KINETIS_SDID_SUBFAMID_KX2: /* errata 7534 - should be K64 */
- /* K64FN1M0, K64FX512 */
- pflash_sector_size_bytes = 4<<10;
- 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 | FS_INVALIDATE_CACHE;
- break;
-
- case KINETIS_SDID_FAMILYID_K2X | KINETIS_SDID_SUBFAMID_KX6:
- /* K26FN2M0 */
- case KINETIS_SDID_FAMILYID_K6X | KINETIS_SDID_SUBFAMID_KX6:
- /* K66FN2M0, K66FX1M0 */
- pflash_sector_size_bytes = 4<<10;
- 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 | FS_INVALIDATE_CACHE;
- break;
- default:
- LOG_ERROR("Unsupported Kinetis FAMILYID SUBFAMID");
- }
- break;
-
- case KINETIS_SDID_SERIESID_KL:
- /* KL-series */
- pflash_sector_size_bytes = 1<<10;
- nvm_sector_size_bytes = 1<<10;
- /* autodetect 1 or 2 blocks */
- kinfo->flash_support = FS_PROGRAM_LONGWORD;
- break;
-
- case KINETIS_SDID_SERIESID_KV:
- /* KV-series */
- switch (kinfo->sim_sdid & (KINETIS_SDID_FAMILYID_MASK | KINETIS_SDID_SUBFAMID_MASK)) {
- case KINETIS_SDID_FAMILYID_K1X | KINETIS_SDID_SUBFAMID_KX0:
- /* KV10: FTFA, 1kB sectors */
- pflash_sector_size_bytes = 1<<10;
- num_blocks = 1;
- kinfo->flash_support = FS_PROGRAM_LONGWORD;
- break;
-
- case KINETIS_SDID_FAMILYID_K1X | KINETIS_SDID_SUBFAMID_KX1:
- /* KV11: FTFA, 2kB sectors */
- pflash_sector_size_bytes = 2<<10;
- num_blocks = 1;
- kinfo->flash_support = FS_PROGRAM_LONGWORD;
- break;
-
- case KINETIS_SDID_FAMILYID_K3X | KINETIS_SDID_SUBFAMID_KX0:
- /* KV30: FTFA, 2kB sectors, 1 block */
- case KINETIS_SDID_FAMILYID_K3X | KINETIS_SDID_SUBFAMID_KX1:
- /* KV31: FTFA, 2kB sectors, 2 blocks */
- pflash_sector_size_bytes = 2<<10;
- /* autodetect 1 or 2 blocks */
- kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_INVALIDATE_CACHE;
- break;
-
- case KINETIS_SDID_FAMILYID_K4X | KINETIS_SDID_SUBFAMID_KX2:
- case KINETIS_SDID_FAMILYID_K4X | KINETIS_SDID_SUBFAMID_KX4:
- case KINETIS_SDID_FAMILYID_K4X | KINETIS_SDID_SUBFAMID_KX6:
- /* KV4x: FTFA, 4kB sectors */
- pflash_sector_size_bytes = 4<<10;
- num_blocks = 1;
- kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_INVALIDATE_CACHE;
- break;
-
- default:
- LOG_ERROR("Unsupported KV FAMILYID SUBFAMID");
- }
- break;
-
- default:
- LOG_ERROR("Unsupported K-series");
- }
- }
-
- if (pflash_sector_size_bytes == 0) {
- LOG_ERROR("MCU is unsupported, SDID 0x%08" PRIx32, kinfo->sim_sdid);
- return ERROR_FLASH_OPER_UNSUPPORTED;
- }
-
- result = target_read_u32(target, SIM_FCFG1, &kinfo->sim_fcfg1);
- if (result != ERROR_OK)
- return result;
-
- result = target_read_u32(target, SIM_FCFG2, &kinfo->sim_fcfg2);
- if (result != ERROR_OK)
- return result;
-
- LOG_DEBUG("SDID: 0x%08" PRIX32 " FCFG1: 0x%08" PRIX32 " FCFG2: 0x%08" PRIX32, kinfo->sim_sdid,
- kinfo->sim_fcfg1, kinfo->sim_fcfg2);
-
- fcfg1_nvmsize = (uint8_t)((kinfo->sim_fcfg1 >> 28) & 0x0f);
- fcfg1_pfsize = (uint8_t)((kinfo->sim_fcfg1 >> 24) & 0x0f);
- fcfg1_eesize = (uint8_t)((kinfo->sim_fcfg1 >> 16) & 0x0f);
- 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) {
- switch (fcfg1_nvmsize) {
- case 0x03:
- case 0x05:
- case 0x07:
- case 0x09:
- case 0x0b:
- nvm_size = 1 << (14 + (fcfg1_nvmsize >> 1));
- break;
- case 0x0f:
- if (pflash_sector_size_bytes >= 4<<10)
- nvm_size = 512<<10;
- else
- /* K20_100 */
- nvm_size = 256<<10;
- break;
- default:
- nvm_size = 0;
- break;
- }
-
- switch (fcfg1_eesize) {
- case 0x00:
- case 0x01:
- case 0x02:
- case 0x03:
- case 0x04:
- case 0x05:
- case 0x06:
- case 0x07:
- case 0x08:
- case 0x09:
- ee_size = (16 << (10 - fcfg1_eesize));
- break;
- default:
- ee_size = 0;
- break;
- }
-
- switch (fcfg1_depart) {
- case 0x01:
- case 0x02:
- case 0x03:
- case 0x04:
- case 0x05:
- case 0x06:
- df_size = nvm_size - (4096 << fcfg1_depart);
- break;
- case 0x08:
- df_size = 0;
- break;
- case 0x09:
- case 0x0a:
- case 0x0b:
- case 0x0c:
- case 0x0d:
- df_size = 4096 << (fcfg1_depart & 0x7);
- break;
- default:
- df_size = nvm_size;
- break;
- }
- }
-
- switch (fcfg1_pfsize) {
- case 0x03:
- case 0x05:
- case 0x07:
- case 0x09:
- case 0x0b:
- case 0x0d:
- pf_size = 1 << (14 + (fcfg1_pfsize >> 1));
- break;
- case 0x0f:
- /* 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 = ((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;
- break;
- }
-
- LOG_DEBUG("FlexNVM: %" PRIu32 " PFlash: %" PRIu32 " FlexRAM: %" PRIu32 " PFLSH: %d",
- nvm_size, pf_size, ee_size, fcfg2_pflsh);
-
- num_pflash_blocks = num_blocks / (2 - fcfg2_pflsh);
- first_nvm_bank = num_pflash_blocks;
- num_nvm_blocks = num_blocks - num_pflash_blocks;
-
- LOG_DEBUG("%d blocks total: %d PFlash, %d FlexNVM",
- num_blocks, num_pflash_blocks, num_nvm_blocks);
-
- LOG_INFO("Probing flash info for bank %d", bank->bank_number);
-
- if ((unsigned)bank->bank_number < num_pflash_blocks) {
- /* pflash, banks start at address zero */
- kinfo->flash_class = FC_PFLASH;
- bank->size = (pf_size / num_pflash_blocks);
- bank->base = 0x00000000 + bank->size * bank->bank_number;
- kinfo->prog_base = bank->base;
- kinfo->sector_size = pflash_sector_size_bytes;
- /* pflash is divided into 32 protection areas for
- * parts with more than 32K of PFlash. For parts with
- * less the protection unit is set to 1024 bytes */
- kinfo->protection_size = MAX(pf_size / 32, 1024);
- bank->num_prot_blocks = 32 / num_pflash_blocks;
- kinfo->protection_block = bank->num_prot_blocks * bank->bank_number;
-
- } else if ((unsigned)bank->bank_number < num_blocks) {
- /* nvm, banks start at address 0x10000000 */
- unsigned nvm_ord = bank->bank_number - first_nvm_bank;
- uint32_t limit;
-
- kinfo->flash_class = FC_FLEX_NVM;
- bank->size = (nvm_size / num_nvm_blocks);
- bank->base = 0x10000000 + bank->size * nvm_ord;
- kinfo->prog_base = 0x00800000 + bank->size * nvm_ord;
- kinfo->sector_size = nvm_sector_size_bytes;
- if (df_size == 0) {
- kinfo->protection_size = 0;
- } else {
- for (i = df_size; ~i & 1; i >>= 1)
- ;
- if (i == 1)
- kinfo->protection_size = df_size / 8; /* data flash size = 2^^n */
- else
- kinfo->protection_size = nvm_size / 8; /* TODO: verify on SF1, not documented in RM */
- }
- bank->num_prot_blocks = 8 / num_nvm_blocks;
- kinfo->protection_block = bank->num_prot_blocks * nvm_ord;
-
- /* EEPROM backup part of FlexNVM is not accessible, use df_size as a limit */
- if (df_size > bank->size * nvm_ord)
- limit = df_size - bank->size * nvm_ord;
- else
- limit = 0;
-
- if (bank->size > limit) {
- bank->size = limit;
- LOG_DEBUG("FlexNVM bank %d limited to 0x%08" PRIx32 " due to active EEPROM backup",
- bank->bank_number, limit);
- }
-
- } else if ((unsigned)bank->bank_number == num_blocks) {
- LOG_ERROR("FlexRAM support not yet implemented");
- return ERROR_FLASH_OPER_UNSUPPORTED;
- } else {
- LOG_ERROR("Cannot determine parameters for bank %d, only %d banks on device",
- bank->bank_number, num_blocks);
- 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;
- }
- if (bank->prot_blocks) {
- free(bank->prot_blocks);
- bank->prot_blocks = NULL;
- }
-
- if (kinfo->sector_size == 0) {
- LOG_ERROR("Unknown sector size for bank %d", bank->bank_number);
- return ERROR_FLASH_BANK_INVALID;
- }
-
- if (kinfo->flash_support & FS_PROGRAM_SECTOR
- && kinfo->max_flash_prog_size == 0) {
- kinfo->max_flash_prog_size = kinfo->sector_size;
- /* Program section size is equal to sector size by default */
- }
-
- bank->num_sectors = bank->size / kinfo->sector_size;
-
- if (bank->num_sectors > 0) {
- /* FlexNVM bank can be used for EEPROM backup therefore zero sized */
- bank->sectors = alloc_block_array(0, kinfo->sector_size, bank->num_sectors);
- if (!bank->sectors)
- return ERROR_FAIL;
-
- bank->prot_blocks = alloc_block_array(0, kinfo->protection_size, bank->num_prot_blocks);
- if (!bank->prot_blocks)
- return ERROR_FAIL;
-
- } else {
- bank->num_prot_blocks = 0;
- }
-
- kinfo->probed = true;
-
- return ERROR_OK;
- }
-
- static int kinetis_auto_probe(struct flash_bank *bank)
- {
- struct kinetis_flash_bank *kinfo = bank->driver_priv;
-
- if (kinfo && kinfo->probed)
- return ERROR_OK;
-
- return kinetis_probe(bank);
- }
-
- static int kinetis_info(struct flash_bank *bank, char *buf, int buf_size)
- {
- const char *bank_class_names[] = {
- "(ANY)", "PFlash", "FlexNVM", "FlexRAM"
- };
-
- struct kinetis_flash_bank *kinfo = bank->driver_priv;
-
- (void) snprintf(buf, buf_size,
- "%s driver for %s flash bank %s at 0x%8.8" PRIx32 "",
- bank->driver->name, bank_class_names[kinfo->flash_class],
- bank->name, bank->base);
-
- return ERROR_OK;
- }
-
- static int kinetis_blank_check(struct flash_bank *bank)
- {
- struct kinetis_flash_bank *kinfo = bank->driver_priv;
- int result;
-
- /* suprisingly blank check does not work in VLPR and HSRUN modes */
- result = kinetis_check_run_mode(bank->target);
- if (result != ERROR_OK)
- return result;
-
- /* reset error flags */
- result = kinetis_ftfx_prepare(bank->target);
- if (result != ERROR_OK)
- return result;
-
- if (kinfo->flash_class == FC_PFLASH || kinfo->flash_class == FC_FLEX_NVM) {
- bool block_dirty = false;
- uint8_t ftfx_fstat;
-
- if (kinfo->flash_class == FC_FLEX_NVM) {
- uint8_t fcfg1_depart = (uint8_t)((kinfo->sim_fcfg1 >> 8) & 0x0f);
- /* block operation cannot be used on FlexNVM when EEPROM backup partition is set */
- if (fcfg1_depart != 0xf && fcfg1_depart != 0)
- block_dirty = true;
- }
-
- if (!block_dirty) {
- /* check if whole bank is blank */
- 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))
- block_dirty = true;
- }
-
- if (block_dirty) {
- /* the whole bank is not erased, check sector-by-sector */
- int i;
- for (i = 0; i < bank->num_sectors; i++) {
- /* normal margin */
- 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) {
- bank->sectors[i].is_erased = !(ftfx_fstat & 0x01);
- } else {
- LOG_DEBUG("Ignoring errored PFlash sector blank-check");
- bank->sectors[i].is_erased = -1;
- }
- }
- } else {
- /* the whole bank is erased, update all sectors */
- int i;
- for (i = 0; i < bank->num_sectors; i++)
- bank->sectors[i].is_erased = 1;
- }
- } else {
- LOG_WARNING("kinetis_blank_check not supported yet for FlexRAM");
- return ERROR_FLASH_OPERATION_FAILED;
- }
-
- 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 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;
-
- /* reset error flags */
- result = kinetis_ftfx_prepare(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, NULL);
- 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;
- }
-
- COMMAND_HANDLER(kinetis_fcf_source_handler)
- {
- if (CMD_ARGC > 1)
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- if (CMD_ARGC == 1) {
- if (strcmp(CMD_ARGV[0], "write") == 0)
- allow_fcf_writes = true;
- else if (strcmp(CMD_ARGV[0], "protection") == 0)
- allow_fcf_writes = false;
- else
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- if (allow_fcf_writes) {
- command_print(CMD_CTX, "Arbitrary Flash Configuration Field writes enabled.");
- command_print(CMD_CTX, "Protection info writes to FCF disabled.");
- LOG_WARNING("BEWARE: incorrect flash configuration may permanently lock the device.");
- } else {
- command_print(CMD_CTX, "Protection info writes to Flash Configuration Field enabled.");
- command_print(CMD_CTX, "Arbitrary FCF writes disabled. Mode safe from unwanted locking of the device.");
- }
-
- return ERROR_OK;
- }
-
- COMMAND_HANDLER(kinetis_fopt_handler)
- {
- if (CMD_ARGC > 1)
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- if (CMD_ARGC == 1)
- fcf_fopt = (uint8_t)strtoul(CMD_ARGV[0], NULL, 0);
- else
- command_print(CMD_CTX, "FCF_FOPT 0x%02" PRIx8, fcf_fopt);
-
- return ERROR_OK;
- }
-
-
- static const struct command_registration kinetis_security_command_handlers[] = {
- {
- .name = "check_security",
- .mode = COMMAND_EXEC,
- .help = "Check status of device security lock",
- .usage = "",
- .handler = kinetis_check_flash_security_status,
- },
- {
- .name = "halt",
- .mode = COMMAND_EXEC,
- .help = "Issue a halt via the MDM-AP",
- .usage = "",
- .handler = kinetis_mdm_halt,
- },
- {
- .name = "mass_erase",
- .mode = COMMAND_EXEC,
- .help = "Issue a complete flash erase via the MDM-AP",
- .usage = "",
- .handler = kinetis_mdm_mass_erase,
- },
- { .name = "reset",
- .mode = COMMAND_EXEC,
- .help = "Issue a reset via the MDM-AP",
- .usage = "",
- .handler = kinetis_mdm_reset,
- },
- COMMAND_REGISTRATION_DONE
- };
-
- static const struct command_registration kinetis_exec_command_handlers[] = {
- {
- .name = "mdm",
- .mode = COMMAND_ANY,
- .help = "MDM-AP command group",
- .usage = "",
- .chain = kinetis_security_command_handlers,
- },
- {
- .name = "disable_wdog",
- .mode = COMMAND_EXEC,
- .help = "Disable the watchdog timer",
- .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,
- },
- {
- .name = "fcf_source",
- .mode = COMMAND_EXEC,
- .help = "Use protection as a source for Flash Configuration Field or allow writing arbitrary values to the FCF"
- " Mode 'protection' is safe from unwanted locking of the device.",
- .usage = "['protection'|'write']",
- .handler = kinetis_fcf_source_handler,
- },
- {
- .name = "fopt",
- .mode = COMMAND_EXEC,
- .help = "FCF_FOPT value source in 'kinetis fcf_source protection' mode",
- .usage = "[num]",
- .handler = kinetis_fopt_handler,
- },
- COMMAND_REGISTRATION_DONE
- };
-
- static const struct command_registration kinetis_command_handler[] = {
- {
- .name = "kinetis",
- .mode = COMMAND_ANY,
- .help = "Kinetis flash controller commands",
- .usage = "",
- .chain = kinetis_exec_command_handlers,
- },
- COMMAND_REGISTRATION_DONE
- };
-
-
-
- struct flash_driver kinetis_flash = {
- .name = "kinetis",
- .commands = kinetis_command_handler,
- .flash_bank_command = kinetis_flash_bank_command,
- .erase = kinetis_erase,
- .protect = kinetis_protect,
- .write = kinetis_write,
- .read = default_flash_read,
- .probe = kinetis_probe,
- .auto_probe = kinetis_auto_probe,
- .erase_check = kinetis_blank_check,
- .protect_check = kinetis_protect_check,
- .info = kinetis_info,
- };
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