diff --git a/cpu/atmega1281/ldscripts_compat/README.md b/cpu/atmega1281/ldscripts_compat/README.md
index 1bc6babe5bef..31317f03718b 100644
--- a/cpu/atmega1281/ldscripts_compat/README.md
+++ b/cpu/atmega1281/ldscripts_compat/README.md
@@ -6,3 +6,9 @@ overriden to configure ROM and RAM length.
 
 This ldscript is used for supporting older versions on avr-binutils like on
 ubuntu xenial.
+
+Generated by extracting the output of
+
+    avr-gcc -Wl,--verbose -mmcu=$(CPU)
+
+With avr-binutils 2.26
diff --git a/cpu/atmega1284p/ldscripts_compat/README.md b/cpu/atmega1284p/ldscripts_compat/README.md
index 1bc6babe5bef..31317f03718b 100644
--- a/cpu/atmega1284p/ldscripts_compat/README.md
+++ b/cpu/atmega1284p/ldscripts_compat/README.md
@@ -6,3 +6,9 @@ overriden to configure ROM and RAM length.
 
 This ldscript is used for supporting older versions on avr-binutils like on
 ubuntu xenial.
+
+Generated by extracting the output of
+
+    avr-gcc -Wl,--verbose -mmcu=$(CPU)
+
+With avr-binutils 2.26
diff --git a/cpu/atmega2560/ldscripts_compat/README.md b/cpu/atmega2560/ldscripts_compat/README.md
index 1bc6babe5bef..31317f03718b 100644
--- a/cpu/atmega2560/ldscripts_compat/README.md
+++ b/cpu/atmega2560/ldscripts_compat/README.md
@@ -6,3 +6,9 @@ overriden to configure ROM and RAM length.
 
 This ldscript is used for supporting older versions on avr-binutils like on
 ubuntu xenial.
+
+Generated by extracting the output of
+
+    avr-gcc -Wl,--verbose -mmcu=$(CPU)
+
+With avr-binutils 2.26
diff --git a/cpu/atmega256rfr2/ldscripts_compat/README.md b/cpu/atmega256rfr2/ldscripts_compat/README.md
index 1bc6babe5bef..31317f03718b 100644
--- a/cpu/atmega256rfr2/ldscripts_compat/README.md
+++ b/cpu/atmega256rfr2/ldscripts_compat/README.md
@@ -6,3 +6,9 @@ overriden to configure ROM and RAM length.
 
 This ldscript is used for supporting older versions on avr-binutils like on
 ubuntu xenial.
+
+Generated by extracting the output of
+
+    avr-gcc -Wl,--verbose -mmcu=$(CPU)
+
+With avr-binutils 2.26
diff --git a/cpu/atmega328p/ldscripts_compat/README.md b/cpu/atmega328p/ldscripts_compat/README.md
index 1bc6babe5bef..31317f03718b 100644
--- a/cpu/atmega328p/ldscripts_compat/README.md
+++ b/cpu/atmega328p/ldscripts_compat/README.md
@@ -6,3 +6,9 @@ overriden to configure ROM and RAM length.
 
 This ldscript is used for supporting older versions on avr-binutils like on
 ubuntu xenial.
+
+Generated by extracting the output of
+
+    avr-gcc -Wl,--verbose -mmcu=$(CPU)
+
+With avr-binutils 2.26