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openocd/contrib/loaders/flash/msp432/main_msp432p401x.c
Edward Fewell 3e84da55a6 flash/nor: add support for TI MSP432 devices 
Added msp432 flash driver to support the TI MSP432P4x and
MSP432E4x microcontrollers. Implemented the flash algo
helper as used in the TI debug and flash tools. This
implemention supports the MSP432E4, Falcon, and Falcon 2M
variants. The flash driver automatically detects the
connected variant and configures itself appropriately.
Added command to mass erase device for consistency with
TI tools and added command to unlock the protected BSL
region.

Tested using MSP432E401Y, MSP432P401R, and MSP432P4111
LaunchPads.
Tested with embedded XDS110 debug probe in CMSIS-DAP
mode and with external SEGGER J-Link probe.

Removed ti_msp432p4xx.cfg file made obsolete by this
patch.
Change-Id: I3b29d39ccc492524ef2c4a1733f7f9942c2684c0
Signed-off-by: Edward Fewell <efewell@ti.com>
Reviewed-on: http://openocd.zylin.com/4153
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
2018-07-18 21:09:23 +01:00

386 lines
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/******************************************************************************
*
* 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);
}
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