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+/***********************license start***************
+ * Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights
+ * reserved.
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+
+ * * Neither the name of Cavium Inc. nor the names of
+ * its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written
+ * permission.
+
+ * This Software, including technical data, may be subject to U.S. export control
+ * laws, including the U.S. Export Administration Act and its associated
+ * regulations, and may be subject to export or import regulations in other
+ * countries.
+
+ * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
+ * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
+ * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
+ * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
+ * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
+ * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
+ * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
+ * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
+ * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
+ * PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
+ ***********************license end**************************************/
+
+
+
+
+
+
+
+/**
+ * @file
+ *
+ * Interface to the on chip key memory. Key memory is
+ * 8k on chip that is inaccessible from off chip. It can
+ * also be cleared using an external hardware pin.
+ *
+ * <hr>$Revision: 70030 $<hr>
+ *
+ */
+
+#ifndef __CVMX_KEY_H__
+#define __CVMX_KEY_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define CVMX_KEY_MEM_SIZE 8192 /* Size in bytes */
+
+
+/**
+ * Read from KEY memory
+ *
+ * @param address Address (byte) in key memory to read
+ * 0 <= address < CVMX_KEY_MEM_SIZE
+ * @return Value from key memory
+ */
+static inline uint64_t cvmx_key_read(uint64_t address)
+{
+ cvmx_addr_t ptr;
+
+ ptr.u64 = 0;
+ ptr.sio.mem_region = CVMX_IO_SEG;
+ ptr.sio.is_io = 1;
+ ptr.sio.did = CVMX_OCT_DID_KEY_RW;
+ ptr.sio.offset = address;
+
+ return cvmx_read_csr(ptr.u64);
+}
+
+
+/**
+ * Write to KEY memory
+ *
+ * @param address Address (byte) in key memory to write
+ * 0 <= address < CVMX_KEY_MEM_SIZE
+ * @param value Value to write to key memory
+ */
+static inline void cvmx_key_write(uint64_t address, uint64_t value)
+{
+ cvmx_addr_t ptr;
+
+ ptr.u64 = 0;
+ ptr.sio.mem_region = CVMX_IO_SEG;
+ ptr.sio.is_io = 1;
+ ptr.sio.did = CVMX_OCT_DID_KEY_RW;
+ ptr.sio.offset = address;
+
+ cvmx_write_io(ptr.u64, value);
+}
+
+
+/* CSR typedefs have been moved to cvmx-key-defs.h */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __CVMX_KEY_H__ */
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