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authorArjan van de Ven <arjan@linux.intel.com>2008-10-17 09:20:26 -0700
committerArjan van de Ven <arjan@linux.intel.com>2008-10-17 09:20:26 -0700
commit651dab4264e4ba0e563f5ff56f748127246e9065 (patch)
tree016630974bdcb00fe529b673f96d389e0fd6dc94 /arch/mips/include/asm/mach-excite/excite_fpga.h
parent40b8606253552109815786e5d4b0de98782d31f5 (diff)
parent2e532d68a2b3e2aa6b19731501222069735c741c (diff)
downloadlwn-651dab4264e4ba0e563f5ff56f748127246e9065.tar.gz
lwn-651dab4264e4ba0e563f5ff56f748127246e9065.zip
Merge commit 'linus/master' into merge-linus
Conflicts: arch/x86/kvm/i8254.c
Diffstat (limited to 'arch/mips/include/asm/mach-excite/excite_fpga.h')
-rw-r--r--arch/mips/include/asm/mach-excite/excite_fpga.h80
1 files changed, 80 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mach-excite/excite_fpga.h b/arch/mips/include/asm/mach-excite/excite_fpga.h
new file mode 100644
index 000000000000..0a1ef69bece7
--- /dev/null
+++ b/arch/mips/include/asm/mach-excite/excite_fpga.h
@@ -0,0 +1,80 @@
+#ifndef EXCITE_FPGA_H_INCLUDED
+#define EXCITE_FPGA_H_INCLUDED
+
+
+/**
+ * Address 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 */