diff --git a/debian/changelog b/debian/changelog
index 590de2406..35a13e401 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -20,7 +20,9 @@ linux-2.6 (3.1.6-2) UNRELEASED; urgency=low
     kernel (Closes: #601962)
   
   [ Aurelien Jarno ]
-  * [sh4] Remove core-modules udeb as it is empty. 
+  * [sh4] Remove core-modules udeb as it is empty.
+  * [sh4/sh7751r] Disable CONFIG_RTS7751R2D_1. Support for this board 
+    implies IRQless IDE, which causes data corruption.
 
  -- Ben Hutchings <ben@decadent.org.uk>  Tue, 27 Dec 2011 20:54:23 +0100
 
diff --git a/debian/config/sh4/config.sh7751r b/debian/config/sh4/config.sh7751r
index c035a843b..37f629d11 100644
--- a/debian/config/sh4/config.sh7751r
+++ b/debian/config/sh4/config.sh7751r
@@ -17,7 +17,6 @@ CONFIG_SH_RTS7751R2D=y
 ## file: arch/sh/boards/mach-r2d/Kconfig
 ##
 CONFIG_RTS7751R2D_PLUS=y
-CONFIG_RTS7751R2D_1=y
 
 ##
 ## file: arch/sh/Kconfig.cpu