+#define LPD270_IRQ(x) (IRQ_BOARD_START + (x))
+#define LPD270_USBC_IRQ LPD270_IRQ(2)
+#define LPD270_ETHERNET_IRQ LPD270_IRQ(3)
+#define LPD270_AC97_IRQ LPD270_IRQ(4)
+
+#define MAINSTONE_IRQ(x) (IRQ_BOARD_START + (x))
+#define MAINSTONE_MMC_IRQ MAINSTONE_IRQ(0)
+#define MAINSTONE_USIM_IRQ MAINSTONE_IRQ(1)
+#define MAINSTONE_USBC_IRQ MAINSTONE_IRQ(2)
+#define MAINSTONE_ETHERNET_IRQ MAINSTONE_IRQ(3)
+#define MAINSTONE_AC97_IRQ MAINSTONE_IRQ(4)
+#define MAINSTONE_PEN_IRQ MAINSTONE_IRQ(5)
+#define MAINSTONE_MSINS_IRQ MAINSTONE_IRQ(6)
+#define MAINSTONE_EXBRD_IRQ MAINSTONE_IRQ(7)
+#define MAINSTONE_S0_CD_IRQ MAINSTONE_IRQ(9)
+#define MAINSTONE_S0_STSCHG_IRQ MAINSTONE_IRQ(10)
+#define MAINSTONE_S0_IRQ MAINSTONE_IRQ(11)
+#define MAINSTONE_S1_CD_IRQ MAINSTONE_IRQ(13)
+#define MAINSTONE_S1_STSCHG_IRQ MAINSTONE_IRQ(14)
+#define MAINSTONE_S1_IRQ MAINSTONE_IRQ(15)
+
+/* LoCoMo Interrupts (CONFIG_SHARP_LOCOMO) */
+#define IRQ_LOCOMO_KEY_BASE (IRQ_BOARD_START + 0)
+#define IRQ_LOCOMO_GPIO_BASE (IRQ_BOARD_START + 1)
+#define IRQ_LOCOMO_LT_BASE (IRQ_BOARD_START + 2)
+#define IRQ_LOCOMO_SPI_BASE (IRQ_BOARD_START + 3)