18 files changed, 36 insertions, 0 deletions
diff --git a/payloads/external/BOOTBOOT/Kconfig b/payloads/external/BOOTBOOT/Kconfig
index c9d7133b71..2fe124b103 100644
--- a/payloads/external/BOOTBOOT/Kconfig
+++ b/payloads/external/BOOTBOOT/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 if PAYLOAD_BOOTBOOT
 
 config PAYLOAD_FILE
diff --git a/payloads/external/BOOTBOOT/Kconfig.name b/payloads/external/BOOTBOOT/Kconfig.name
index 082a9b1ec2..83a523abb7 100644
--- a/payloads/external/BOOTBOOT/Kconfig.name
+++ b/payloads/external/BOOTBOOT/Kconfig.name
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config PAYLOAD_BOOTBOOT
 	bool "BOOTBOOT"
 	depends on ARCH_X86 || ARCH_ARM64
diff --git a/payloads/external/FILO/Kconfig b/payloads/external/FILO/Kconfig
index dae8715eed..1ba0ed20ad 100644
--- a/payloads/external/FILO/Kconfig
+++ b/payloads/external/FILO/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 if PAYLOAD_FILO
 
 choice
diff --git a/payloads/external/FILO/Kconfig.name b/payloads/external/FILO/Kconfig.name
index 37b1f2c28a..07982b6ac0 100644
--- a/payloads/external/FILO/Kconfig.name
+++ b/payloads/external/FILO/Kconfig.name
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config PAYLOAD_FILO
 	bool "FILO"
 	depends on ARCH_X86
diff --git a/payloads/external/GRUB2/Kconfig b/payloads/external/GRUB2/Kconfig
index 7adbdd08a3..1fde6cadaf 100644
--- a/payloads/external/GRUB2/Kconfig
+++ b/payloads/external/GRUB2/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config PAYLOAD_BUILD_GRUB2
 	bool
 
diff --git a/payloads/external/GRUB2/Kconfig.name b/payloads/external/GRUB2/Kconfig.name
index bfa4af41e4..c90c036232 100644
--- a/payloads/external/GRUB2/Kconfig.name
+++ b/payloads/external/GRUB2/Kconfig.name
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config PAYLOAD_GRUB2
 	bool "GRUB2"
 	depends on ARCH_X86 || ARCH_ARM
diff --git a/payloads/external/Memtest86Plus/Kconfig.secondary b/payloads/external/Memtest86Plus/Kconfig.secondary
index d357399f09..991e089ffd 100644
--- a/payloads/external/Memtest86Plus/Kconfig.secondary
+++ b/payloads/external/Memtest86Plus/Kconfig.secondary
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 if MEMTEST_SECONDARY_PAYLOAD
 
 comment "Memtest86+"
diff --git a/payloads/external/SeaBIOS/Kconfig b/payloads/external/SeaBIOS/Kconfig
index 31b9989e5b..b12af46a14 100644
--- a/payloads/external/SeaBIOS/Kconfig
+++ b/payloads/external/SeaBIOS/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config PAYLOAD_BUILD_SEABIOS
 	bool
 
diff --git a/payloads/external/SeaBIOS/Kconfig.name b/payloads/external/SeaBIOS/Kconfig.name
index d452b387cf..e4f687a6c1 100644
--- a/payloads/external/SeaBIOS/Kconfig.name
+++ b/payloads/external/SeaBIOS/Kconfig.name
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config PAYLOAD_SEABIOS
 	bool "SeaBIOS"
 	depends on ARCH_X86
diff --git a/payloads/external/U-Boot/Kconfig b/payloads/external/U-Boot/Kconfig
index ccd8006e60..c7c44e2231 100644
--- a/payloads/external/U-Boot/Kconfig
+++ b/payloads/external/U-Boot/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 if PAYLOAD_UBOOT
 
 config PAYLOAD_SPECIFIC_OPTIONS
diff --git a/payloads/external/U-Boot/Kconfig.name b/payloads/external/U-Boot/Kconfig.name
index 5f24280701..897f1a345b 100644
--- a/payloads/external/U-Boot/Kconfig.name
+++ b/payloads/external/U-Boot/Kconfig.name
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config PAYLOAD_UBOOT
 	bool "U-Boot"
 	depends on ARCH_X86
diff --git a/payloads/external/coreDOOM/Kconfig.secondary b/payloads/external/coreDOOM/Kconfig.secondary
index 9f13cfe98c..522134c5da 100644
--- a/payloads/external/coreDOOM/Kconfig.secondary
+++ b/payloads/external/coreDOOM/Kconfig.secondary
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 if COREDOOM_SECONDARY_PAYLOAD
 
 config COREDOOM_WAD_FILE
diff --git a/payloads/external/depthcharge/Kconfig b/payloads/external/depthcharge/Kconfig
index 89c81ef70e..c531aa05b8 100644
--- a/payloads/external/depthcharge/Kconfig
+++ b/payloads/external/depthcharge/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 if PAYLOAD_DEPTHCHARGE
 
 choice
diff --git a/payloads/external/depthcharge/Kconfig.name b/payloads/external/depthcharge/Kconfig.name
index fc080aaf12..45da10b3ca 100644
--- a/payloads/external/depthcharge/Kconfig.name
+++ b/payloads/external/depthcharge/Kconfig.name
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config PAYLOAD_DEPTHCHARGE
 	bool "Depthcharge"
 	depends on CHROMEOS
diff --git a/payloads/external/edk2/Kconfig b/payloads/external/edk2/Kconfig
index 554b786f66..e2cfb4836e 100644
--- a/payloads/external/edk2/Kconfig
+++ b/payloads/external/edk2/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 if PAYLOAD_EDK2
 
 config PAYLOAD_FILE
diff --git a/payloads/external/edk2/Kconfig.name b/payloads/external/edk2/Kconfig.name
index 4afa551409..3e2bf7e570 100644
--- a/payloads/external/edk2/Kconfig.name
+++ b/payloads/external/edk2/Kconfig.name
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config PAYLOAD_EDK2
 	bool "edk2 payload"
 	depends on ARCH_X86 || ARCH_ARM64
diff --git a/payloads/external/linux/Kconfig b/payloads/external/linux/Kconfig
index 8b15f99cdc..5cb46d1f04 100644
--- a/payloads/external/linux/Kconfig
+++ b/payloads/external/linux/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 if PAYLOAD_LINUX
 
 config PAYLOAD_FILE
diff --git a/payloads/external/linux/Kconfig.name b/payloads/external/linux/Kconfig.name
index 493eb982ef..1d8fcd08f6 100644
--- a/payloads/external/linux/Kconfig.name
+++ b/payloads/external/linux/Kconfig.name
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config PAYLOAD_LINUX
 	bool "A Linux payload"
 	depends on ARCH_X86 || ARCH_ARM || ARCH_RISCV