diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index e2bdf2591c10..5adccaed7d01 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -471,7 +471,7 @@ source "arch/arm/mach-zynq/Kconfig"
 
 # ARMv7-M architecture
 config ARCH_LPC18XX
-	bool "NXP LPC18xx/LPC43xx"
+	bool "NXP LPC18xx/LPC43xx (DEPRECATED)"
 	depends on ARM_SINGLE_ARMV7M
 	select ARCH_HAS_RESET_CONTROLLER
 	select ARM_AMBA
@@ -481,8 +481,10 @@ config ARCH_LPC18XX
 	  Support for NXP's LPC18xx Cortex-M3 and LPC43xx Cortex-M4
 	  high performance microcontrollers.
 
+	  This platform is scheduled for removal in early 2027
+
 config ARCH_MPS2
-	bool "ARM MPS2 platform"
+	bool "ARM MPS2 platform (DEPRECATED)"
 	depends on ARM_SINGLE_ARMV7M
 	select ARM_AMBA
 	select CLKSRC_MPS2
@@ -493,6 +495,8 @@ config ARCH_MPS2
 	  Please, note that depends which Application Note is used memory map
 	  for the platform may vary, so adjustment of RAM base might be needed.
 
+	  This platform is scheduled for removal in early 2027
+
 # Definitions to make life easier
 config ARCH_ACORN
 	bool
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index c5ef27e3cd8f..cb0e3ff8e0ca 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -15,13 +15,15 @@ menuconfig ARCH_AT91
 
 if ARCH_AT91
 config SOC_SAMV7
-	bool "SAM Cortex-M7 family" if ARM_SINGLE_ARMV7M
+	bool "SAM Cortex-M7 family (DEPRECATED)" if ARM_SINGLE_ARMV7M
 	select COMMON_CLK_AT91
 	select PINCTRL_AT91
 	help
 	  Select this if you are using an SoC from Microchip's SAME7, SAMS7 or SAMV7
 	  families.
 
+	  This platform is scheduled for removal in early 2027
+
 config SOC_SAMA5D2
 	bool "SAMA5D2 family"
 	depends on ARCH_MULTI_V7
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index f85a5f8c0a58..3f0521c652cb 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -219,12 +219,14 @@ config SOC_IMX7ULP
 	  This enables support for Freescale i.MX7 Ultra Low Power processor.
 
 config SOC_IMXRT
-	bool "i.MXRT support"
+	bool "i.MXRT support (DEPRECATED)"
 	depends on ARM_SINGLE_ARMV7M
 	select ARMV7M_SYSTICK if ARM_SINGLE_ARMV7M
 	help
 	  This enables support for Freescale i.MXRT Crossover processor.
 
+	  This platform is scheduled for removal in early 2027
+
 config SOC_VF610
 	bool "Vybrid Family VF610 support"
 	select ARM_GIC if ARCH_MULTI_V7
diff --git a/arch/arm/mach-stm32/Kconfig b/arch/arm/mach-stm32/Kconfig
index 630b992f32b1..4ac3384e397a 100644
--- a/arch/arm/mach-stm32/Kconfig
+++ b/arch/arm/mach-stm32/Kconfig
@@ -14,30 +14,32 @@ menuconfig ARCH_STM32
 	select STM32_EXTI if ARM_SINGLE_ARMV7M
 	select STM32_FIREWALL
 	help
-	  Support for STMicroelectronics STM32 processors.
+	  Support for STMicroelectronics STM32MP1 processors using Cortex-A7
+	  cores. Note that support for the earlier Cortex-M based variants
+	  is deprecated and scheduled for removal in early 2027.
 
 if ARCH_STM32
 
 if ARM_SINGLE_ARMV7M
 
 config MACH_STM32F429
-	bool "STMicroelectronics STM32F429"
+	bool "STMicroelectronics STM32F429 (DEPRECATED)"
 	default y
 
 config MACH_STM32F469
-	bool "STMicroelectronics STM32F469"
+	bool "STMicroelectronics STM32F469 (DEPRECATED)"
 	default y
 
 config MACH_STM32F746
-	bool "STMicroelectronics STM32F746"
+	bool "STMicroelectronics STM32F746 (DEPRECATED)"
 	default y
 
 config MACH_STM32F769
-	bool "STMicroelectronics STM32F769"
+	bool "STMicroelectronics STM32F769 (DEPRECATED)"
 	default y
 
 config MACH_STM32H743
-	bool "STMicroelectronics STM32H743"
+	bool "STMicroelectronics STM32H743 (DEPRECATED)"
 	default y
 
 endif # ARMv7-M