1 files changed, 89 insertions, 0 deletions

diff --git a/arch/m68k/include/asm/mcfintc.h b/arch/m68k/include/asm/mcfintc.h
new file mode 100644
index 000000000000..4183320a3813
--- /dev/null
+++ b/arch/m68k/include/asm/mcfintc.h
@@ -0,0 +1,89 @@
+/****************************************************************************/
+
+/*
+ *      mcfintc.h -- support definitions for the simple ColdFire
+ *                   Interrupt Controller
+ *
+ *      (C) Copyright 2009,  Greg Ungerer <gerg@uclinux.org>
+ */
+
+/****************************************************************************/
+#ifndef mcfintc_h
+#define mcfintc_h
+/****************************************************************************/
+
+/*
+ * Most of the older ColdFire parts use the same simple interrupt
+ * controller. This is currently used on the 5206, 5206e, 5249, 5307
+ * and 5407 parts.
+ *
+ * The builtin peripherals are masked through dedicated bits in the
+ * Interrupt Mask register (IMR) - and this is not indexed (or in any way
+ * related to) the actual interrupt number they use. So knowing the IRQ
+ * number doesn't explicitly map to a certain internal device for
+ * interrupt control purposes.
+ */
+
+/*
+ * Bit definitions for the ICR family of registers.
+ */
+#define MCFSIM_ICR_AUTOVEC      0x80            /* Auto-vectored intr */
+#define MCFSIM_ICR_LEVEL0       0x00            /* Level 0 intr */
+#define MCFSIM_ICR_LEVEL1       0x04            /* Level 1 intr */
+#define MCFSIM_ICR_LEVEL2       0x08            /* Level 2 intr */
+#define MCFSIM_ICR_LEVEL3       0x0c            /* Level 3 intr */
+#define MCFSIM_ICR_LEVEL4       0x10            /* Level 4 intr */
+#define MCFSIM_ICR_LEVEL5       0x14            /* Level 5 intr */
+#define MCFSIM_ICR_LEVEL6       0x18            /* Level 6 intr */
+#define MCFSIM_ICR_LEVEL7       0x1c            /* Level 7 intr */
+
+#define MCFSIM_ICR_PRI0         0x00            /* Priority 0 intr */
+#define MCFSIM_ICR_PRI1         0x01            /* Priority 1 intr */
+#define MCFSIM_ICR_PRI2         0x02            /* Priority 2 intr */
+#define MCFSIM_ICR_PRI3         0x03            /* Priority 3 intr */
+
+/*
+ * IMR bit position definitions. Not all ColdFire parts with this interrupt
+ * controller actually support all of these interrupt sources. But the bit
+ * numbers are the same in all cores.
+ */
+#define MCFINTC_EINT1           1               /* External int #1 */
+#define MCFINTC_EINT2           2               /* External int #2 */
+#define MCFINTC_EINT3           3               /* External int #3 */
+#define MCFINTC_EINT4           4               /* External int #4 */
+#define MCFINTC_EINT5           5               /* External int #5 */
+#define MCFINTC_EINT6           6               /* External int #6 */
+#define MCFINTC_EINT7           7               /* External int #7 */
+#define MCFINTC_SWT             8               /* Software Watchdog */
+#define MCFINTC_TIMER1          9
+#define MCFINTC_TIMER2          10
+#define MCFINTC_I2C             11              /* I2C / MBUS */
+#define MCFINTC_UART0           12
+#define MCFINTC_UART1           13
+#define MCFINTC_DMA0            14
+#define MCFINTC_DMA1            15
+#define MCFINTC_DMA2            16
+#define MCFINTC_DMA3            17
+#define MCFINTC_QSPI            18
+
+#ifndef __ASSEMBLER__
+
+/*
+ * There is no one-is-one correspondance between the interrupt number (irq)
+ * and the bit fields on the mask register. So we create a per-cpu type
+ * mapping of irq to mask bit. The CPU platform code needs to register
+ * its supported irq's at init time, using this function.
+ */
+extern unsigned char mcf_irq2imr[];
+static inline void mcf_mapirq2imr(int irq, int imr)
+{
+        mcf_irq2imr[irq] = imr;
+}
+
+void mcf_autovector(int irq);
+void mcf_setimr(int index);
+void mcf_clrimr(int index);
+#endif
+
+/****************************************************************************/
+#endif  /* mcfintc_h */