--- /dev/null
+/******************************************************************************
+*
+* Copyright (C) 2013-2018 Texas Instruments Incorporated - http://www.ti.com/
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+*
+* Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in the
+* documentation and/or other materials provided with the
+* distribution.
+*
+* Neither the name of Texas Instruments Incorporated nor the names of
+* its contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*
+******************************************************************************/
+
+#include <stdint.h>
+#include <stdbool.h>
+#include "driverlib.h"
+
+#include "MSP432P4_FlashLibIf.h"
+
+/* Number of erase repeats until timeout */
+#define FLASH_MAX_REPEATS 5
+
+/* Local prototypes */
+void msp432_flash_init(void);
+void msp432_flash_mass_erase(void);
+void msp432_flash_sector_erase(void);
+void msp432_flash_write(void);
+void msp432_flash_continous_write(void);
+void msp432_flash_exit(void);
+void unlock_flash_sectors(void);
+void unlock_all_flash_sectors(void);
+void lock_all_flash_sectors(void);
+void __cs_set_dco_frequency_range(uint32_t dco_freq);
+static bool program_device(void *src, void *dest, uint32_t length);
+
+struct backup_params {
+ uint32_t BANK0_WAIT_RESTORE;
+ uint32_t BANK1_WAIT_RESTORE;
+ uint32_t CS_DC0_FREQ_RESTORE;
+ uint8_t VCORE_LEVEL_RESTORE;
+ uint8_t PCM_VCORE_LEVEL_RESTORE;
+};
+
+#define BACKUP_PARAMS ((struct backup_params *) 0x20000180)
+#define INFO_FLASH_START __INFO_FLASH_A_TECH_START__
+#define INFO_FLASH_MIDDLE __INFO_FLASH_A_TECH_MIDDLE__
+#define BSL_FLASH_START BSL_API_TABLE_ADDR
+
+/* Main with trampoline */
+int main(void)
+{
+ /* Halt watchdog */
+ MAP_WDT_A_HOLD_TIMER();
+
+ /* Disable interrupts */
+ cpu_cpsid();
+
+ while (1) {
+ switch (FLASH_LOADER->FLASH_FUNCTION) {
+ case FLASH_INIT:
+ FLASH_LOADER->RETURN_CODE = FLASH_BUSY;
+ msp432_flash_init();
+ FLASH_LOADER->FLASH_FUNCTION = 0;
+ break;
+ case FLASH_MASS_ERASE:
+ FLASH_LOADER->RETURN_CODE = FLASH_BUSY;
+ msp432_flash_mass_erase();
+ FLASH_LOADER->FLASH_FUNCTION = 0;
+ break;
+ case FLASH_SECTOR_ERASE:
+ FLASH_LOADER->RETURN_CODE = FLASH_BUSY;
+ msp432_flash_sector_erase();
+ FLASH_LOADER->FLASH_FUNCTION = 0;
+ break;
+ case FLASH_PROGRAM:
+ FLASH_LOADER->RETURN_CODE = FLASH_BUSY;
+ msp432_flash_write();
+ FLASH_LOADER->FLASH_FUNCTION = 0;
+ break;
+ case FLASH_CONTINUOUS_PROGRAM:
+ FLASH_LOADER->RETURN_CODE = FLASH_BUSY;
+ msp432_flash_continous_write();
+ FLASH_LOADER->FLASH_FUNCTION = 0;
+ break;
+ case FLASH_EXIT:
+ FLASH_LOADER->RETURN_CODE = FLASH_BUSY;
+ msp432_flash_exit();
+ FLASH_LOADER->FLASH_FUNCTION = 0;
+ break;
+ case FLASH_NO_COMMAND:
+ break;
+ default:
+ FLASH_LOADER->RETURN_CODE = FLASH_WRONG_COMMAND;
+ break;
+ }
+ }
+}
+
+/* Initialize flash */
+void msp432_flash_init(void)
+{
+ bool success = false;
+
+ /* Point to vector table in RAM */
+ SCB->VTOR = (uint32_t)0x01000000;
+
+ /* backup system parameters */
+ BACKUP_PARAMS->BANK0_WAIT_RESTORE =
+ MAP_FLASH_CTL_A_GET_WAIT_STATE(FLASH_A_BANK0);
+ BACKUP_PARAMS->BANK1_WAIT_RESTORE =
+ MAP_FLASH_CTL_A_GET_WAIT_STATE(FLASH_A_BANK1);
+ BACKUP_PARAMS->VCORE_LEVEL_RESTORE = MAP_PCM_GET_CORE_VOLTAGE_LEVEL();
+ BACKUP_PARAMS->PCM_VCORE_LEVEL_RESTORE = MAP_PCM_GET_POWER_STATE();
+ BACKUP_PARAMS->CS_DC0_FREQ_RESTORE = CS->CTL0 & CS_CTL0_DCORSEL_MASK;
+
+ /* set parameters for flashing */
+ success = MAP_PCM_SET_POWER_STATE(PCM_AM_LDO_VCORE0);
+
+ /* Set Flash wait states to 2 */
+ MAP_FLASH_CTL_A_SET_WAIT_STATE(FLASH_A_BANK0, 2);
+ MAP_FLASH_CTL_A_SET_WAIT_STATE(FLASH_A_BANK1, 2);
+
+ /* Set CPU speed to 24MHz */
+ __cs_set_dco_frequency_range(CS_DCO_FREQUENCY_24);
+
+ if (!success) {
+ /* Indicate failed power switch */
+ FLASH_LOADER->RETURN_CODE = FLASH_POWER_ERROR;
+ } else
+ FLASH_LOADER->RETURN_CODE = FLASH_SUCCESS;
+}
+
+/* Erase entire flash */
+void msp432_flash_mass_erase(void)
+{
+ bool success = false;
+
+ /* Allow flash writes */
+ unlock_flash_sectors();
+
+ /* Allow some mass erase repeats before timeout with error */
+ int erase_repeats = FLASH_MAX_REPEATS;
+ while (!success && (erase_repeats > 0)) {
+ /* Mass erase with post-verify */
+ success = ROM_FLASH_CTL_A_PERFORM_MASS_ERASE();
+ erase_repeats--;
+ }
+
+ if (erase_repeats == 0)
+ FLASH_LOADER->RETURN_CODE = FLASH_VERIFY_ERROR;
+ else
+ FLASH_LOADER->RETURN_CODE = FLASH_SUCCESS;
+
+ /* Block flash writes */
+ lock_all_flash_sectors();
+}
+
+/* Erase one flash sector */
+void msp432_flash_sector_erase(void)
+{
+ bool success = false;
+
+ /* Allow flash writes */
+ unlock_all_flash_sectors();
+
+ /* Allow some sector erase repeats before timeout with error */
+ int erase_repeats = FLASH_MAX_REPEATS;
+ while (!success && (erase_repeats > 0)) {
+ /* Sector erase with post-verify */
+ success = MAP_FLASH_CTL_A_ERASE_SECTOR(FLASH_LOADER->DST_ADDRESS);
+ erase_repeats--;
+ }
+
+ if (erase_repeats == 0)
+ FLASH_LOADER->RETURN_CODE = FLASH_ERROR;
+ else
+ FLASH_LOADER->RETURN_CODE = FLASH_SUCCESS;
+
+ /* Block flash writes */
+ lock_all_flash_sectors();
+}
+
+/* Write data to flash with the help of DriverLib */
+void msp432_flash_write(void)
+{
+ bool success = false;
+
+ /* Allow flash writes */
+ unlock_all_flash_sectors();
+
+ while (!(FLASH_LOADER->BUFFER1_STATUS_REGISTER & BUFFER_DATA_READY))
+ ;
+
+ FLASH_LOADER->BUFFER1_STATUS_REGISTER |= BUFFER_ACTIVE;
+
+ /* Program memory */
+ success = program_device((uint32_t *)RAM_LOADER_BUFFER1,
+ (void *)FLASH_LOADER->DST_ADDRESS, FLASH_LOADER->SRC_LENGTH);
+
+ FLASH_LOADER->BUFFER1_STATUS_REGISTER &=
+ ~(BUFFER_ACTIVE | BUFFER_DATA_READY);
+
+ /* Block flash writes */
+ lock_all_flash_sectors();
+
+ if (!success)
+ FLASH_LOADER->RETURN_CODE = FLASH_ERROR;
+ else
+ FLASH_LOADER->RETURN_CODE = FLASH_SUCCESS;
+}
+
+/* Write data to flash with the help of DriverLib with auto-increment */
+void msp432_flash_continous_write(void)
+{
+ bool buffer1_in_use = false;
+ bool buffer2_in_use = false;
+ uint32_t *src_address = NULL;
+ bool success = false;
+
+ uint32_t bytes_to_write = FLASH_LOADER->SRC_LENGTH;
+ uint32_t write_package = 0;
+ uint32_t start_addr = FLASH_LOADER->DST_ADDRESS;
+
+ while (bytes_to_write > 0) {
+ if (bytes_to_write > SRC_LENGTH_MAX) {
+ write_package = SRC_LENGTH_MAX;
+ bytes_to_write -= write_package;
+ } else {
+ write_package = bytes_to_write;
+ bytes_to_write -= write_package;
+ }
+ unlock_all_flash_sectors();
+ while (!(FLASH_LOADER->BUFFER1_STATUS_REGISTER & BUFFER_DATA_READY) &&
+ !(FLASH_LOADER->BUFFER2_STATUS_REGISTER & BUFFER_DATA_READY))
+ ;
+
+ if (FLASH_LOADER->BUFFER1_STATUS_REGISTER & BUFFER_DATA_READY) {
+ FLASH_LOADER->BUFFER1_STATUS_REGISTER |= BUFFER_ACTIVE;
+ src_address = (uint32_t *) RAM_LOADER_BUFFER1;
+ buffer1_in_use = true;
+ } else if (FLASH_LOADER->BUFFER2_STATUS_REGISTER & BUFFER_DATA_READY) {
+ FLASH_LOADER->BUFFER2_STATUS_REGISTER |= BUFFER_ACTIVE;
+ src_address = (uint32_t *) RAM_LOADER_BUFFER2;
+ buffer2_in_use = true;
+ }
+ if (buffer1_in_use || buffer2_in_use) {
+ success = program_device(src_address, (void *) start_addr, write_package);
+ start_addr += write_package;
+ }
+ if (buffer1_in_use) {
+ FLASH_LOADER->BUFFER1_STATUS_REGISTER &= ~(BUFFER_ACTIVE | BUFFER_DATA_READY);
+ buffer1_in_use = false;
+ } else if (buffer2_in_use) {
+ FLASH_LOADER->BUFFER2_STATUS_REGISTER &= ~(BUFFER_ACTIVE | BUFFER_DATA_READY);
+ buffer2_in_use = false;
+ }
+ /* Block flash writes */
+ lock_all_flash_sectors();
+
+ if (!success) {
+ FLASH_LOADER->RETURN_CODE = FLASH_ERROR;
+ break;
+ }
+ }
+ if (success)
+ FLASH_LOADER->RETURN_CODE = FLASH_SUCCESS;
+}
+
+/* Unlock Main/Info Flash sectors */
+void unlock_flash_sectors(void)
+{
+ if (FLASH_LOADER->ERASE_PARAM & ERASE_MAIN)
+ MAP_FLASH_CTL_A_UNPROTECT_MEMORY(FLASH_BASE, FLASH_BASE +
+ MAP_SYS_CTL_A_GET_FLASH_SIZE() - 1);
+
+ if (FLASH_LOADER->ERASE_PARAM & ERASE_INFO) {
+ MAP_FLASH_CTL_A_UNPROTECT_MEMORY(INFO_FLASH_START, TLV_BASE - 1);
+ if (FLASH_LOADER->UNLOCK_BSL == UNLOCK_BSL_KEY)
+ MAP_FLASH_CTL_A_UNPROTECT_MEMORY(BSL_FLASH_START,
+ INFO_FLASH_MIDDLE - 1);
+ MAP_FLASH_CTL_A_UNPROTECT_MEMORY(INFO_FLASH_MIDDLE, INFO_FLASH_MIDDLE +
+ MAP_SYS_CTL_A_GET_INFO_FLASH_SIZE() - 1);
+ }
+}
+
+/* Unlock All Flash sectors */
+void unlock_all_flash_sectors(void)
+{
+ MAP_FLASH_CTL_A_UNPROTECT_MEMORY(FLASH_BASE, FLASH_BASE +
+ MAP_SYS_CTL_A_GET_FLASH_SIZE() - 1);
+ MAP_FLASH_CTL_A_UNPROTECT_MEMORY(INFO_FLASH_START, TLV_BASE - 1);
+ if (FLASH_LOADER->UNLOCK_BSL == UNLOCK_BSL_KEY)
+ MAP_FLASH_CTL_A_UNPROTECT_MEMORY(BSL_FLASH_START,
+ INFO_FLASH_MIDDLE - 1);
+ MAP_FLASH_CTL_A_UNPROTECT_MEMORY(INFO_FLASH_MIDDLE, INFO_FLASH_MIDDLE +
+ MAP_SYS_CTL_A_GET_INFO_FLASH_SIZE() - 1);
+}
+
+/* Lock all Flash sectors */
+void lock_all_flash_sectors(void)
+{
+ MAP_FLASH_CTL_A_PROTECT_MEMORY(FLASH_BASE, FLASH_BASE +
+ MAP_SYS_CTL_A_GET_FLASH_SIZE() - 1);
+ MAP_FLASH_CTL_A_PROTECT_MEMORY(INFO_FLASH_START, INFO_FLASH_START +
+ MAP_SYS_CTL_A_GET_INFO_FLASH_SIZE() - 1);
+}
+
+/* Force DCO frequency range */
+void __cs_set_dco_frequency_range(uint32_t dco_freq)
+{
+ /* Unlocking the CS Module */
+ CS->KEY = CS_KEY_VAL;
+
+ /* Resetting Tuning Parameters and Setting the frequency */
+ CS->CTL0 = (CS->CTL0 & ~CS_CTL0_DCORSEL_MASK) | dco_freq;
+
+ /* Locking the CS Module */
+ CS->KEY = 0;
+}
+
+/* Exit flash programming */
+void msp432_flash_exit(void)
+{
+ bool success = false;
+
+ /* Restore modified registers, in reverse order */
+ __cs_set_dco_frequency_range(CS_DCO_FREQUENCY_3);
+
+ MAP_FLASH_CTL_A_SET_WAIT_STATE(FLASH_A_BANK0,
+ BACKUP_PARAMS->BANK0_WAIT_RESTORE);
+ MAP_FLASH_CTL_A_SET_WAIT_STATE(FLASH_A_BANK1,
+ BACKUP_PARAMS->BANK1_WAIT_RESTORE);
+
+ success = MAP_PCM_SET_POWER_STATE(BACKUP_PARAMS->PCM_VCORE_LEVEL_RESTORE);
+
+ success &= MAP_PCM_SET_CORE_VOLTAGE_LEVEL(
+ BACKUP_PARAMS->VCORE_LEVEL_RESTORE);
+
+ __cs_set_dco_frequency_range(BACKUP_PARAMS->CS_DC0_FREQ_RESTORE);
+
+ /* Point to vector table in Flash */
+ SCB->VTOR = (uint32_t)0x00000000;
+
+ if (!success)
+ FLASH_LOADER->RETURN_CODE = FLASH_ERROR;
+ else
+ FLASH_LOADER->RETURN_CODE = FLASH_SUCCESS;
+}
+
+static bool program_device(void *src, void *dest, uint32_t length)
+{
+ uint32_t dst_address = (uint32_t)dest;
+
+ /* Flash main memory first, then information memory */
+ if ((dst_address < INFO_FLASH_START) && ((dst_address + length) >
+ INFO_FLASH_START)) {
+ uint32_t block_length = INFO_FLASH_START - dst_address;
+ uint32_t src_address = (uint32_t)src;
+ /* Main memory block */
+ bool success = MAP_FLASH_CTL_A_PROGRAM_MEMORY(src, dest, block_length);
+
+ src_address = src_address + block_length;
+ block_length = length - block_length;
+ /* Information memory block */
+ success &= MAP_FLASH_CTL_A_PROGRAM_MEMORY((void *)src_address,
+ (void *)INFO_FLASH_START, block_length);
+ return success;
+ } else
+ return MAP_FLASH_CTL_A_PROGRAM_MEMORY(src, dest, length);
+}
projects / openocd / blobdiff