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drivers: hwinfo: add TI MSPM0 support

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Texas Instruments MSPM0 series supports device id fields with
various part information and also resgister to hold reset reason.
Reset cause register will defaults to 0 after first read.

Signed-off-by: Parthiban Nallathambi <parthiban@linumiz.com>
This commit is contained in:
Parthiban Nallathambi 2025-05-03 21:58:00 +05:30 • committed by Anas Nashif
commit 7e5434f246
2 changed files with 141 additions and 0 deletions
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7
drivers/hwinfo/Kconfig
View file

@ -297,4 +297,11 @@ config HWINFO_RENESAS_RA
help
Enable RENESAS RA hwinfo driver
config HWINFO_MSPM0
bool "TI MSPM0 hwinfo"
default y
depends on SOC_FAMILY_TI_MSPM0
help
Enable TI MSPM0 hwinfo driver
endif

134
drivers/hwinfo/hwinfo_mspm0.c Normal file
View file

@ -0,0 +1,134 @@
/*
* Copyright (c) 2025 Linumiz GmbH
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/device.h>
#include <zephyr/drivers/hwinfo.h>
#include <ti/driverlib/driverlib.h>
#include <string.h>
static uint32_t reset_cause;
ssize_t z_impl_hwinfo_get_device_id(uint8_t *buffer, size_t length)
{
struct mspm0_device_id {
uint16_t manufacturer;
uint16_t partnum;
uint8_t version;
uint32_t traceid;
uint16_t user_partnum;
uint8_t user_var;
};
struct mspm0_device_id info = {0};
info.manufacturer = DL_FactoryRegion_getManufacturerCode();
info.partnum = DL_FactoryRegion_getPartNumber();
info.version = DL_FactoryRegion_getVersion();
info.traceid = DL_FactoryRegion_getTraceID();
info.user_partnum = DL_FactoryRegion_getUserIDPart();
info.user_var = DL_FactoryRegion_getUserIDVariant();
if (length > sizeof(info)) {
length = sizeof(info);
}
memcpy(buffer, &info, length);
return length;
}
int z_impl_hwinfo_get_reset_cause(uint32_t *cause)
{
uint32_t reason;
if (reset_cause != 0) {
*cause = reset_cause;
return 0;
}
reason = DL_SYSCTL_getResetCause();
switch (reason) {
case DL_SYSCTL_RESET_CAUSE_POR_HW_FAILURE:
*cause = RESET_POR;
break;
case DL_SYSCTL_RESET_CAUSE_POR_EXTERNAL_NRST:
__fallthrough;
case DL_SYSCTL_RESET_CAUSE_BOOTRST_EXTERNAL_NRST:
*cause = RESET_PIN;
break;
case DL_SYSCTL_RESET_CAUSE_POR_SW_TRIGGERED:
__fallthrough;
case DL_SYSCTL_RESET_CAUSE_BOOTRST_SW_TRIGGERED:
__fallthrough;
case DL_SYSCTL_RESET_CAUSE_SYSRST_SW_TRIGGERED:
__fallthrough;
case DL_SYSCTL_RESET_CAUSE_CPURST_SW_TRIGGERED:
*cause = RESET_SOFTWARE;
break;
case DL_SYSCTL_RESET_CAUSE_BOR_SUPPLY_FAILURE:
*cause = RESET_BROWNOUT;
break;
case DL_SYSCTL_RESET_CAUSE_BOR_WAKE_FROM_SHUTDOWN:
*cause = RESET_LOW_POWER_WAKE;
break;
case DL_SYSCTL_RESET_CAUSE_BOOTRST_NON_PMU_PARITY_FAULT:
*cause = RESET_PARITY;
break;
case DL_SYSCTL_RESET_CAUSE_BOOTRST_CLOCK_FAULT:
*cause = RESET_CLOCK;
break;
case DL_SYSCTL_RESET_CAUSE_SYSRST_BSL_EXIT:
__fallthrough;
case DL_SYSCTL_RESET_CAUSE_SYSRST_BSL_ENTRY:
*cause = RESET_BOOTLOADER;
break;
case DL_SYSCTL_RESET_CAUSE_SYSRST_WWDT0_VIOLATION:
__fallthrough;
case DL_SYSCTL_RESET_CAUSE_SYSRST_WWDT1_VIOLATION:
*cause = RESET_WATCHDOG;
break;
case DL_SYSCTL_RESET_CAUSE_SYSRST_FLASH_ECC_ERROR:
*cause = RESET_FLASH;
break;
case DL_SYSCTL_RESET_CAUSE_SYSRST_CPU_LOCKUP_VIOLATION:
*cause = RESET_CPU_LOCKUP;
break;
case DL_SYSCTL_RESET_CAUSE_SYSRST_DEBUG_TRIGGERED:
__fallthrough;
case DL_SYSCTL_RESET_CAUSE_CPURST_DEBUG_TRIGGERED:
*cause = RESET_DEBUG;
break;
default:
break;
}
reset_cause = *cause;
return 0;
}
int z_impl_hwinfo_clear_reset_cause(void)
{
reset_cause = 0;
return 0;
}
int z_impl_hwinfo_get_supported_reset_cause(uint32_t *supported)
{
*supported = RESET_POR
| RESET_PIN
| RESET_SOFTWARE
| RESET_BROWNOUT
| RESET_LOW_POWER_WAKE
| RESET_PARITY
| RESET_CLOCK
| RESET_BOOTLOADER
| RESET_WATCHDOG
| RESET_FLASH
| RESET_CPU_LOCKUP
| RESET_DEBUG;
return 0;
}