diff --git a/boards/arm/v2m_musca/Kconfig.defconfig b/boards/arm/v2m_musca/Kconfig.defconfig
index 2d3c79b7838..db88d5c19da 100644
--- a/boards/arm/v2m_musca/Kconfig.defconfig
+++ b/boards/arm/v2m_musca/Kconfig.defconfig
@@ -7,6 +7,9 @@ config BOARD
 	default "musca_a" if TRUSTED_EXECUTION_SECURE || !TRUSTED_EXECUTION_NONSECURE
 	default "musca_a_nonsecure"
 
+config BOARD_DEPRECATED_RELEASE
+	default "v2.6.0"
+
 if GPIO
 
 config GPIO_CMSDK_AHB
diff --git a/doc/releases/release-notes-2.5.rst b/doc/releases/release-notes-2.5.rst
index 38ddd376b70..85c5de6703c 100644
--- a/doc/releases/release-notes-2.5.rst
+++ b/doc/releases/release-notes-2.5.rst
@@ -46,6 +46,8 @@ API Changes
 Deprecated in this release
 ==========================
 
+* ARM Musca-A board and SoC support deprecated and planned to be removed in 2.6.0.
+
 Removed APIs in this release
 ============================
 
diff --git a/soc/arm/arm/musca_a/Kconfig.defconfig.musca_a b/soc/arm/arm/musca_a/Kconfig.defconfig.musca_a
index e8ff756f0fa..56f85e59e9e 100644
--- a/soc/arm/arm/musca_a/Kconfig.defconfig.musca_a
+++ b/soc/arm/arm/musca_a/Kconfig.defconfig.musca_a
@@ -3,6 +3,9 @@
 
 if SOC_V2M_MUSCA_A
 
+config SOC_DEPRECATED_RELEASE
+	default "v2.6.0"
+
 config SOC
 	default "musca_a"