diff --git a/arch/x86/configs/micro_galileo_defconfig b/arch/x86/configs/micro_galileo_defconfig
index b4ae2f2a35a..4910a2064a2 100644
--- a/arch/x86/configs/micro_galileo_defconfig
+++ b/arch/x86/configs/micro_galileo_defconfig
@@ -15,6 +15,7 @@ CONFIG_GPIO=y
 CONFIG_I2C=y
 CONFIG_I2C_DW=y
 CONFIG_I2C_DW_0=y
+CONFIG_I2C_DW_0_IRQ_SHARED=y
 CONFIG_GPIO_PCAL9535A=y
 CONFIG_GPIO_PCAL9535A_DEBUG=y
 CONFIG_GPIO_MMIO=y
@@ -23,3 +24,5 @@ CONFIG_GPIO_MMIO_0_ACCESS_IO=y
 CONFIG_GPIO_MMIO_1=y
 CONFIG_GPIO_MMIO_1_ACCESS_IO=y
 CONFIG_I2C_DW_IRQ_LEVEL_LOW=y
+CONFIG_SHARED_IRQ=y
+CONFIG_SHARED_IRQ_0_LEVEL_LOW=y
diff --git a/arch/x86/configs/nano_galileo_defconfig b/arch/x86/configs/nano_galileo_defconfig
index d8f01b244dd..e6df74d5a50 100644
--- a/arch/x86/configs/nano_galileo_defconfig
+++ b/arch/x86/configs/nano_galileo_defconfig
@@ -11,6 +11,10 @@ CONFIG_UART_CONSOLE=y
 CONFIG_HPET_TIMER_LEVEL_LOW=y
 CONFIG_SERIAL_INTERRUPT_LOW=y
 CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=25000000
+CONFIG_I2C=y
+CONFIG_I2C_DW=y
+CONFIG_I2C_DW_0=y
+CONFIG_I2C_DW_0_IRQ_SHARED=y
 CONFIG_GPIO=y
 CONFIG_GPIO_PCAL9535A=y
 CONFIG_GPIO_PCAL9535A_DEBUG=y
@@ -23,3 +27,5 @@ CONFIG_GPIO_MMIO_0_ACCESS_IO=y
 CONFIG_GPIO_MMIO_1=y
 CONFIG_GPIO_MMIO_1_ACCESS_IO=y
 CONFIG_I2C_DW_IRQ_LEVEL_LOW=y
+CONFIG_SHARED_IRQ=y
+CONFIG_SHARED_IRQ_0_LEVEL_LOW=y
diff --git a/arch/x86/platforms/galileo/Kconfig b/arch/x86/platforms/galileo/Kconfig
index e8a0ecdba66..9fdfae8f5d3 100644
--- a/arch/x86/platforms/galileo/Kconfig
+++ b/arch/x86/platforms/galileo/Kconfig
@@ -53,6 +53,17 @@ config PINMUX
 config I2C
 	def_bool y
 
+if SHARED_IRQ
+config SHARED_IRQ_0
+	def_bool y
+config SHARED_IRQ_0_NAME
+	default "SHARED_IRQ0"
+config SHARED_IRQ_0_IRQ
+	default 18
+config SHARED_IRQ_0_PRI
+	default 0
+endif
+
 if I2C
 config I2C_CLOCK_SPEED
 	default 25
@@ -84,6 +95,8 @@ config I2C_DW_0_FUNCTION
 	default 2
 config I2C_DW_0_BAR
 	default 0
+config I2C_DW_0_IRQ_SHARED_NAME
+	default "SHARED_IRQ0" if SHARED_IRQ
 endif
 
 if GPIO && I2C