diff --git a/boards/silabs/dev_kits/sltb010a/Kconfig.defconfig b/boards/silabs/dev_kits/sltb010a/Kconfig.defconfig
index 850f2cd8538bb08..624ce4109811380 100644
--- a/boards/silabs/dev_kits/sltb010a/Kconfig.defconfig
+++ b/boards/silabs/dev_kits/sltb010a/Kconfig.defconfig
@@ -26,6 +26,9 @@ config MAIN_STACK_SIZE
 	default 3072 if PM
 	default 2304
 
+config BT_TINYCRYPT_ECC
+	default y
+
 endif # BT
 
 config REGULATOR
diff --git a/boards/silabs/dev_kits/xg24_dk2601b/Kconfig.defconfig b/boards/silabs/dev_kits/xg24_dk2601b/Kconfig.defconfig
index 098b80000ac657b..e1377ea7172f469 100644
--- a/boards/silabs/dev_kits/xg24_dk2601b/Kconfig.defconfig
+++ b/boards/silabs/dev_kits/xg24_dk2601b/Kconfig.defconfig
@@ -31,6 +31,9 @@ config COMMON_LIBC_MALLOC_ARENA_SIZE
 config MAIN_STACK_SIZE
 	default 2304
 
+config BT_TINYCRYPT_ECC
+	default y
+
 if SHELL
 
 config SHELL_STACK_SIZE
diff --git a/boards/silabs/dev_kits/xg27_dk2602a/Kconfig.defconfig b/boards/silabs/dev_kits/xg27_dk2602a/Kconfig.defconfig
index 850f2cd8538bb08..624ce4109811380 100644
--- a/boards/silabs/dev_kits/xg27_dk2602a/Kconfig.defconfig
+++ b/boards/silabs/dev_kits/xg27_dk2602a/Kconfig.defconfig
@@ -26,6 +26,9 @@ config MAIN_STACK_SIZE
 	default 3072 if PM
 	default 2304
 
+config BT_TINYCRYPT_ECC
+	default y
+
 endif # BT
 
 config REGULATOR
diff --git a/boards/silabs/radio_boards/slwrb4104a/Kconfig.defconfig b/boards/silabs/radio_boards/slwrb4104a/Kconfig.defconfig
index 37a549f4fa7ea6b..82e9c90c97c7946 100644
--- a/boards/silabs/radio_boards/slwrb4104a/Kconfig.defconfig
+++ b/boards/silabs/radio_boards/slwrb4104a/Kconfig.defconfig
@@ -37,6 +37,9 @@ config MAIN_STACK_SIZE
 	default 3072 if PM
 	default 2304
 
+config BT_TINYCRYPT_ECC
+	default y
+
 endif # BT
 
 endif # BOARD_SLWRB4104A
diff --git a/boards/silabs/radio_boards/slwrb4161a/Kconfig.defconfig b/boards/silabs/radio_boards/slwrb4161a/Kconfig.defconfig
index 0c706e35bcbfabc..cbc8b977f2fc47e 100644
--- a/boards/silabs/radio_boards/slwrb4161a/Kconfig.defconfig
+++ b/boards/silabs/radio_boards/slwrb4161a/Kconfig.defconfig
@@ -37,6 +37,9 @@ config MAIN_STACK_SIZE
 	default 3072 if PM
 	default 2304
 
+config BT_TINYCRYPT_ECC
+	default y
+
 endif # BT
 
 endif # BOARD_SLWRB4161A
diff --git a/boards/silabs/radio_boards/slwrb4170a/Kconfig.defconfig b/boards/silabs/radio_boards/slwrb4170a/Kconfig.defconfig
index b9054a3c46c515e..8e010d623e1fde3 100644
--- a/boards/silabs/radio_boards/slwrb4170a/Kconfig.defconfig
+++ b/boards/silabs/radio_boards/slwrb4170a/Kconfig.defconfig
@@ -37,6 +37,9 @@ config MAIN_STACK_SIZE
 	default 3072 if PM
 	default 2304
 
+config BT_TINYCRYPT_ECC
+	default y
+
 endif # BT
 
 endif # BOARD_SLWRB4170A
diff --git a/boards/silabs/radio_boards/slwrb4180a/Kconfig.defconfig b/boards/silabs/radio_boards/slwrb4180a/Kconfig.defconfig
index 5f917d659c6c646..280b237bf415b73 100644
--- a/boards/silabs/radio_boards/slwrb4180a/Kconfig.defconfig
+++ b/boards/silabs/radio_boards/slwrb4180a/Kconfig.defconfig
@@ -37,6 +37,9 @@ config MAIN_STACK_SIZE
 	default 3072 if PM
 	default 2304
 
+config BT_TINYCRYPT_ECC
+	default y
+
 endif # BT
 
 endif # BOARD_SLWRB4180A
diff --git a/boards/silabs/radio_boards/slwrb4250b/Kconfig.defconfig b/boards/silabs/radio_boards/slwrb4250b/Kconfig.defconfig
index 489fc5c7a6989a9..c88aa4227e3aef2 100644
--- a/boards/silabs/radio_boards/slwrb4250b/Kconfig.defconfig
+++ b/boards/silabs/radio_boards/slwrb4250b/Kconfig.defconfig
@@ -37,6 +37,9 @@ config MAIN_STACK_SIZE
 	default 3072 if PM
 	default 2304
 
+config BT_TINYCRYPT_ECC
+	default y
+
 endif # BT
 
 endif # BOARD_SLWRB4250B
diff --git a/boards/silabs/radio_boards/slwrb4255a/Kconfig.defconfig b/boards/silabs/radio_boards/slwrb4255a/Kconfig.defconfig
index c0ac1bf3b3af38c..b0ad7cecd3b23e7 100644
--- a/boards/silabs/radio_boards/slwrb4255a/Kconfig.defconfig
+++ b/boards/silabs/radio_boards/slwrb4255a/Kconfig.defconfig
@@ -37,6 +37,9 @@ config MAIN_STACK_SIZE
 	default 3072 if PM
 	default 2304
 
+config BT_TINYCRYPT_ECC
+	default y
+
 endif # BT
 
 endif # BOARD_SLWRB4255A
diff --git a/boards/silabs/radio_boards/xg24_rb4187c/Kconfig.defconfig b/boards/silabs/radio_boards/xg24_rb4187c/Kconfig.defconfig
index 0d0d7b04ce2831b..8451f605b652616 100644
--- a/boards/silabs/radio_boards/xg24_rb4187c/Kconfig.defconfig
+++ b/boards/silabs/radio_boards/xg24_rb4187c/Kconfig.defconfig
@@ -37,6 +37,9 @@ config MAIN_STACK_SIZE
 	default 3072 if PM
 	default 2304
 
+config BT_TINYCRYPT_ECC
+	default y
+
 endif # BT
 
 endif # BOARD_XG24_RB4187C