386 lines
11 KiB
C
386 lines
11 KiB
C
/******************************************************************************
|
|
*
|
|
* 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)
|
|
|
|
/* 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_GET_WAIT_STATE(FLASH_BANK0);
|
|
BACKUP_PARAMS->BANK1_WAIT_RESTORE =
|
|
MAP_FLASH_CTL_GET_WAIT_STATE(FLASH_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_SET_WAIT_STATE(FLASH_BANK0, 2);
|
|
MAP_FLASH_CTL_SET_WAIT_STATE(FLASH_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 = MAP_FLASH_CTL_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_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);
|
|
|
|
if (buffer1_in_use)
|
|
P6->OUT &= ~BIT4; /* Program from B1 */
|
|
else if (buffer2_in_use)
|
|
P3->OUT &= ~BIT6; /* Program from B1 */
|
|
|
|
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_UNPROTECT_SECTOR(FLASH_MAIN_MEMORY_SPACE_BANK0,
|
|
0xFFFFFFFF);
|
|
MAP_FLASH_CTL_UNPROTECT_SECTOR(FLASH_MAIN_MEMORY_SPACE_BANK1,
|
|
0xFFFFFFFF);
|
|
}
|
|
if (FLASH_LOADER->ERASE_PARAM & ERASE_INFO) {
|
|
MAP_FLASH_CTL_UNPROTECT_SECTOR(FLASH_INFO_MEMORY_SPACE_BANK0,
|
|
FLASH_SECTOR0 | FLASH_SECTOR1);
|
|
if (FLASH_LOADER->UNLOCK_BSL == UNLOCK_BSL_KEY)
|
|
MAP_FLASH_CTL_UNPROTECT_SECTOR(FLASH_INFO_MEMORY_SPACE_BANK1,
|
|
FLASH_SECTOR0 | FLASH_SECTOR1);
|
|
}
|
|
}
|
|
|
|
/* Unlock All Flash sectors */
|
|
void unlock_all_flash_sectors(void)
|
|
{
|
|
MAP_FLASH_CTL_UNPROTECT_SECTOR(FLASH_MAIN_MEMORY_SPACE_BANK0, 0xFFFFFFFF);
|
|
MAP_FLASH_CTL_UNPROTECT_SECTOR(FLASH_MAIN_MEMORY_SPACE_BANK1, 0xFFFFFFFF);
|
|
MAP_FLASH_CTL_UNPROTECT_SECTOR(FLASH_INFO_MEMORY_SPACE_BANK0,
|
|
FLASH_SECTOR0 | FLASH_SECTOR1);
|
|
if (FLASH_LOADER->UNLOCK_BSL == UNLOCK_BSL_KEY)
|
|
MAP_FLASH_CTL_UNPROTECT_SECTOR(FLASH_INFO_MEMORY_SPACE_BANK1,
|
|
FLASH_SECTOR0 | FLASH_SECTOR1);
|
|
}
|
|
|
|
|
|
/* Lock all Flash sectors */
|
|
void lock_all_flash_sectors(void)
|
|
{
|
|
MAP_FLASH_CTL_PROTECT_SECTOR(FLASH_MAIN_MEMORY_SPACE_BANK0, 0xFFFFFFFF);
|
|
MAP_FLASH_CTL_PROTECT_SECTOR(FLASH_MAIN_MEMORY_SPACE_BANK1, 0xFFFFFFFF);
|
|
MAP_FLASH_CTL_PROTECT_SECTOR(FLASH_INFO_MEMORY_SPACE_BANK0,
|
|
FLASH_SECTOR0 | FLASH_SECTOR1);
|
|
MAP_FLASH_CTL_PROTECT_SECTOR(FLASH_INFO_MEMORY_SPACE_BANK1,
|
|
FLASH_SECTOR0 | FLASH_SECTOR1);
|
|
}
|
|
|
|
|
|
/* 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_SET_WAIT_STATE(FLASH_BANK0,
|
|
BACKUP_PARAMS->BANK0_WAIT_RESTORE);
|
|
MAP_FLASH_CTL_SET_WAIT_STATE(FLASH_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)
|
|
{
|
|
return MAP_FLASH_CTL_PROGRAM_MEMORY(src, dest, length);
|
|
}
|