soc/cavium: import raw BDK sources

This imports common BDK sources that will be used in subsequent
patches.
The BDK is licensed under BSD and will be reduced in size and optimized to
compile under coreboot.

Change-Id: Icb32ee670d9fa9e5c10f9abb298cebf616fa67ad
Signed-off-by: David Hendricks <dhendricks@fb.com>
Reviewed-on: https://review.coreboot.org/25524
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>

1 files changed, 100 insertions, 0 deletions

diff --git a/src/vendorcode/cavium/include/bdk/libbdk-arch/bdk-lmt.h b/src/vendorcode/cavium/include/bdk/libbdk-arch/bdk-lmt.h
new file mode 100644
index 0000000000..49a69dfb76
--- /dev/null
+++ b/src/vendorcode/cavium/include/bdk/libbdk-arch/bdk-lmt.h
@@ -0,0 +1,100 @@
+/***********************license start***********************************
+* Copyright (c) 2003-2017  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
+ *
+ * Defiens and functions for performing LMT operations, such as
+ * LMTST and LMTCANCEL
+ *
+ * @defgroup lmt Local Memory Transaction (LMT) support
+ * @{
+ */
+#include "libbdk-arch/bdk-csrs-lmt.h"
+
+/**
+ * Address of the LMT store area in physical memory
+ */
+#define __BDK_LMTLINE_CN83XX 0x87F100000000ull
+
+/**
+ * Flush the LMTLINE area of all previous writes and clear the valid flag
+ */
+static inline void bdk_lmt_cancel(void)
+{
+    if (CAVIUM_IS_MODEL(CAVIUM_CN83XX))
+        *(volatile uint64_t *)(__BDK_LMTLINE_CN83XX | (1 << 10)) = 0;
+    else
+        BDK_CSR_WRITE(bdk_numa_local(), BDK_LMT_LF_LMTCANCEL, 0);
+}
+
+/**
+ * Return a volatile pointer to the LMTLINE area in 64bit words. Good programming
+ * practice would to always store sequencially, incrementing the pointer for each
+ * word written.
+ *
+ * @return Voltaile uint64_t pointer to LMTLINE
+ */
+static inline volatile uint64_t *bdk_lmt_store_ptr(void)
+{
+    if (CAVIUM_IS_MODEL(CAVIUM_CN83XX))
+        return (volatile uint64_t *)__BDK_LMTLINE_CN83XX;
+    else
+        return (volatile uint64_t *)BDK_LMT_LF_LMTLINEX(0);
+}
+
+/**
+ * Send the data stored to LMTLINE to an IO block. This call may
+ * fail if the hardware has invalidated the LMTLINE area. If it
+ * fails, you must issue all LMT stores again and redo this
+ * call. Note the return status of this function is backwards
+ * to most BDK functions. It matches the LMTST hardware result.
+ *
+ * @param io_address 48 bit IO address where the LMTLINE data will be sent
+ *
+ * @return Zero on failure, non-zero on success
+ */
+static inline int bdk_lmt_submit(uint64_t io_address)
+{
+    int64_t result = 0;
+    asm volatile ("LDEOR xzr,%x[rf],[%[rs]]" : [rf] "=r"(result): [rs] "r"(io_address));
+    return bdk_le64_to_cpu(result);
+}
+
+/** @} */