1 files changed, 80 insertions, 0 deletions

diff --git a/include/asm-mips/mach-excite/excite_fpga.h b/include/asm-mips/mach-excite/excite_fpga.h
new file mode 100644
index 000000000000..38fcda703a0b
--- /dev/null
+++ b/include/asm-mips/mach-excite/excite_fpga.h
@@ -0,0 +1,80 @@
+#ifndef EXCITE_FPGA_H_INCLUDED
+#define EXCITE_FPGA_H_INCLUDED
+
+
+/**
+ * Adress alignment of the individual FPGA bytes.
+ * The address arrangement of the individual bytes of the FPGA is two
+ * byte aligned at the embedded MK2 platform.
+ */
+#ifdef EXCITE_CCI_FPGA_MK2
+typedef unsigned char excite_cci_fpga_align_t __attribute__ ((aligned(2)));
+#else
+typedef unsigned char excite_cci_fpga_align_t;
+#endif
+
+
+/**
+ * Size of Dual Ported RAM.
+ */
+#define EXCITE_DPR_SIZE 263
+
+
+/**
+ * Size of Reserved Status Fields in Dual Ported RAM.
+ */
+#define EXCITE_DPR_STATUS_SIZE 7
+
+
+
+/**
+ * FPGA.
+ * Hardware register layout of the FPGA interface. The FPGA must accessed
+ * byte wise solely.
+ * @see EXCITE_CCI_DPR_MK2
+ */
+typedef struct excite_fpga {
+
+        /**
+         * Dual Ported RAM.
+         */
+        excite_cci_fpga_align_t dpr[EXCITE_DPR_SIZE];
+
+        /**
+         * Status.
+         */
+        excite_cci_fpga_align_t status[EXCITE_DPR_STATUS_SIZE];
+
+#ifdef EXCITE_CCI_FPGA_MK2
+        /**
+         * RM9000 Interrupt.
+         * Write access initiates interrupt at the RM9000 (MIPS) processor of the eXcite.
+         */
+        excite_cci_fpga_align_t rm9k_int;
+#else
+        /**
+         * MK2 Interrupt.
+         * Write access initiates interrupt at the ARM processor of the MK2.
+         */
+        excite_cci_fpga_align_t mk2_int;
+
+        excite_cci_fpga_align_t gap[0x1000-0x10f];
+
+        /**
+         * IRQ Source/Acknowledge.
+         */
+        excite_cci_fpga_align_t rm9k_irq_src;
+
+        /**
+         * IRQ Mask.
+         * Set bits enable the related interrupt.
+         */
+        excite_cci_fpga_align_t rm9k_irq_mask;
+#endif
+
+
+} excite_fpga;
+
+
+
+#endif  /* ndef EXCITE_FPGA_H_INCLUDED */