drivers: hwinfo: cc23x0: Add support for cc23x0 in hwinfo

Add support for get_reset_cause and get_supported_reset_cause.

Signed-off-by: Stoyan Bogdanov <[email protected]>

Author: bogdanovs

drivers/hwinfo/CMakeLists.txt

@@ -12,6 +12,7 @@ zephyr_library_sources_ifdef(CONFIG_HWINFO_SHELL       hwinfo_shell.c)
 zephyr_library_sources_ifdef(CONFIG_HWINFO_AMBIQ       hwinfo_ambiq.c)
 zephyr_library_sources_ifdef(CONFIG_HWINFO_ANDES       hwinfo_andes.c)
 zephyr_library_sources_ifdef(CONFIG_HWINFO_CC13XX_CC26XX hwinfo_cc13xx_cc26xx.c)
+zephyr_library_sources_ifdef(CONFIG_HWINFO_CC23X0      hwinfo_cc23x0.c)
 zephyr_library_sources_ifdef(CONFIG_HWINFO_ESP32       hwinfo_esp32.c)
 zephyr_library_sources_ifdef(CONFIG_HWINFO_GECKO       hwinfo_gecko.c)
 zephyr_library_sources_ifdef(CONFIG_HWINFO_IMXRT       hwinfo_imxrt.c)

drivers/hwinfo/Kconfig

@@ -62,6 +62,14 @@ endchoice
 
 endif # HWINFO_CC13XX_CC26XX
 
+config HWINFO_CC23X0
+	bool "TI CC23X0 hwinfo"
+	default y
+	depends on SOC_FAMILY_TI_SIMPLELINK && SOC_SERIES_CC23X0
+	select HWINFO_HAS_DRIVER
+	help
+	  Enable CC23X0 hwinfo driver.
+
 config HWINFO_STM32
 	bool "STM32 hwinfo"
 	default y

drivers/hwinfo/hwinfo_cc23x0.c

@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2025 Baylibre, SAS
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/drivers/hwinfo.h>
+#include <string.h>
+
+#include <driverlib/pmctl.h>
+
+int z_impl_hwinfo_get_supported_reset_cause(uint32_t *supported)
+{
+	*supported = (RESET_PIN
+		      | RESET_SOFTWARE
+		      | RESET_BROWNOUT
+		      | RESET_POR
+		      | RESET_WATCHDOG
+		      | RESET_DEBUG
+		      | RESET_CPU_LOCKUP
+		      | RESET_CLOCK
+		      | RESET_TEMPERATURE);
+
+	return 0;
+}
+
+int z_impl_hwinfo_get_reset_cause(uint32_t *cause)
+{
+	uint32_t rststa = PMCTLGetResetReason();
+
+	switch (rststa) {
+	case PMCTL_RESET_PIN:
+		*cause = RESET_PIN;
+		break;
+	case PMCTL_RESET_SYSTEM:
+		*cause = RESET_SOFTWARE;
+		break;
+	case PMCTL_RESET_VDDR:
+	case PMCTL_RESET_VDDS:
+		*cause = RESET_BROWNOUT;
+		break;
+	case PMCTL_RESET_POR:
+		*cause = RESET_POR;
+		break;
+	case PMCTL_RESET_WATCHDOG:
+		*cause = RESET_WATCHDOG;
+		break;
+	case PMCTL_RESET_SWD:
+	case PMCTL_RESET_SHUTDOWN_SWD:
+		*cause = RESET_DEBUG;
+		break;
+	case PMCTL_RESET_LOCKUP:
+		*cause = RESET_CPU_LOCKUP;
+		break;
+	case PMCTL_RESET_LFXT:
+		*cause = RESET_CLOCK;
+		break;
+	case PMCTL_RESET_TSD:
+		*cause = RESET_TEMPERATURE;
+		break;
+	default:
+		*cause = 0;
+		break;
+	}
+
+	return 0;
+}