1 files changed, 163 insertions, 0 deletions
diff --git a/src/vendorcode/cavium/bdk/libbdk-dram/bdk-dram-config.c b/src/vendorcode/cavium/bdk/libbdk-dram/bdk-dram-config.c
new file mode 100644
index 0000000000..3465c5d98b
--- /dev/null
+++ b/src/vendorcode/cavium/bdk/libbdk-dram/bdk-dram-config.c
@@ -0,0 +1,163 @@
+/***********************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**************************************/
+#include <bdk.h>
+#include <unistd.h>
+
+BDK_REQUIRE_DEFINE(DRAM_CONFIG);
+
+/**
+ * Lookup a DRAM configuration by name and initialize DRAM using it
+ *
+ * @param node   Node to configure
+ * @param ddr_clock_override
+ *               If non zero, override the DRAM frequency specified
+ *               in the config with this value
+ *
+ * @return Amount of DRAM in MB, or negative on failure
+ */
+int bdk_dram_config(int node, int ddr_clock_override)
+{
+    const dram_config_t *config = libdram_config_load(node);
+    if (!config)
+    {
+        printf("N%d: No DRAM config specified, skipping DRAM init\n", node);
+        return 0;
+    }
+
+    BDK_TRACE(DRAM, "N%d: Starting DRAM init (config=%p, ddr_clock_override=%d)\n", node, config, ddr_clock_override);
+    int mbytes = libdram_config(node, config, ddr_clock_override);
+    BDK_TRACE(DRAM, "N%d: DRAM init returned %d\n", node, mbytes);
+    if (mbytes <= 0)
+    {
+        printf("ERROR: DDR initialization failed\n");
+        return -1;
+    }
+
+    return mbytes;
+}
+
+/**
+ * Do DRAM configuration tuning
+ *
+ * @param node   Node to tune
+ *
+ * @return Success or Fail
+ */
+int bdk_dram_tune(int node)
+{
+    int ret;
+    BDK_TRACE(DRAM, "N%d: Starting DRAM tuning\n", node);
+    ret = libdram_tune(node);
+    BDK_TRACE(DRAM, "N%d: DRAM tuning returned %d\n", node, ret);
+    return ret;
+}
+
+/**
+ * Do all the DRAM Margin tests 
+ *
+ * @param node   Node to test
+ *
+ * @return Success or Fail
+ */
+void bdk_dram_margin(int node)
+{
+    BDK_TRACE(DRAM, "N%d: Starting DRAM margining\n", node);
+    libdram_margin(node);
+    BDK_TRACE(DRAM, "N%d: Finished DRAM margining.\n", node);
+    return;
+}
+
+/**
+ * Return the string of the DRAM configuration info at the specified node.
+ * If the node is not configured, NULL is returned.
+ *
+ * @param node   node to retrieve
+ *
+ * @return string or NULL
+ */
+const char* bdk_dram_get_info_string(int node)
+{
+    #define INFO_STRING_LEN 40
+    static char info_string[INFO_STRING_LEN];
+    static const char *info_ptr = info_string;
+
+    snprintf(info_string, INFO_STRING_LEN,
+             " %ld MB, %ld MT/s, %s %s",
+             bdk_dram_get_size_mbytes(node),
+             bdk_config_get_int(BDK_CONFIG_DDR_SPEED, node),
+             (__bdk_dram_is_ddr4(node, 0)) ? "DDR4" : "DDR3",
+             (__bdk_dram_is_rdimm(node, 0)) ? "RDIMM" : "UDIMM");
+
+    return info_ptr;
+}
+
+
+/**
+ * Return the highest address currently used by the BDK. This address will
+ * be about 4MB above the top of the BDK to make sure small growths between the
+ * call and its use don't cause corruption. Any call to memory allocation can
+ * change this value.
+ *
+ * @return Size of the BDK in bytes
+ */
+uint64_t bdk_dram_get_top_of_bdk(void)
+{
+    /* Make sure the start address is higher that the BDK's active range.
+     *
+     * As sbrk() returns a node address, mask off the node portion of
+     * the address to make it a physical offset. Doing this simplifies the
+     * address checks and calculations which only work with physical offsets.
+     */
+    uint64_t top_of_bdk = (bdk_ptr_to_phys(sbrk(0)) & bdk_build_mask(40));
+    uint64_t l2_size = bdk_l2c_get_cache_size_bytes(bdk_numa_master());
+    if (top_of_bdk <= l2_size)
+    {
+        /* Early BDK code takes care of the first L2 sized area of memory */
+        top_of_bdk = l2_size;
+    }
+    else
+    {
+        /* Give 4MB of extra so the BDK has room to grow */
+        top_of_bdk += 4 << 20;
+        /* Align it on a 64KB boundary */
+        top_of_bdk >>= 16;
+        top_of_bdk <<= 16;
+    }
+    return top_of_bdk;
+}