Index: linux-2.6.15-rc2/arch/arm/configs/spitz_defconfig
===================================================================
--- linux-2.6.15-rc2.orig/arch/arm/configs/spitz_defconfig	2005-12-01 09:32:25.000000000 +0000
+++ linux-2.6.15-rc2/arch/arm/configs/spitz_defconfig	2005-12-01 10:21:13.000000000 +0000
@@ -897,7 +897,24 @@
 #
 # I2C support
 #
-# CONFIG_I2C is not set
+CONFIG_I2C=y
+# CONFIG_I2C_CHARDEV is not set
+
+#
+# I2C Algorithms
+#
+# CONFIG_I2C_ALGOBIT is not set
+# CONFIG_I2C_ALGOPCF is not set
+# CONFIG_I2C_ALGOPCA is not set
+
+#
+# I2C Hardware Bus support
+#
+CONFIG_I2C_PXA=y
+# CONFIG_I2C_PXA_SLAVE is not set
+# CONFIG_I2C_PARPORT_LIGHT is not set
+# CONFIG_I2C_STUB is not set
+# CONFIG_I2C_PCA_ISA is not set
 
 #
 # Hardware Monitoring support
Index: linux-2.6.15-rc2/arch/arm/mach-pxa/Kconfig
===================================================================
--- linux-2.6.15-rc2.orig/arch/arm/mach-pxa/Kconfig	2005-12-01 10:14:09.000000000 +0000
+++ linux-2.6.15-rc2/arch/arm/mach-pxa/Kconfig	2005-12-01 10:24:20.000000000 +0000
@@ -77,6 +77,8 @@
 	depends PXA_SHARPSL_27x
 	select PXA_SHARP_Cxx00
 	select MACH_SPITZ
+	select I2C
+	select I2C_PXA
 
 config MACH_SPITZ
 	bool "Enable Sharp Zaurus SL-3000 (Spitz) Support"