diff options
Diffstat (limited to 'src/vendorcode/cavium/bdk/libdram/dram-init-ddr3.h')
| -rw-r--r-- | src/vendorcode/cavium/bdk/libdram/dram-init-ddr3.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/src/vendorcode/cavium/bdk/libdram/dram-init-ddr3.h b/src/vendorcode/cavium/bdk/libdram/dram-init-ddr3.h new file mode 100644 index 0000000000..ba1060e5e0 --- /dev/null +++ b/src/vendorcode/cavium/bdk/libdram/dram-init-ddr3.h @@ -0,0 +1,97 @@ +/***********************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**************************************/ + +/** + * Function for DDR3 init. Internal use only. + */ + +extern void perform_octeon3_ddr3_sequence(bdk_node_t node, int rank_mask, + int ddr_interface_num, int sequence); +extern void perform_ddr_init_sequence(bdk_node_t node, int rank_mask, + int ddr_interface_num); +extern int ddr_memory_preserved(bdk_node_t node); + +extern int init_octeon3_ddr3_interface(bdk_node_t node, + const ddr_configuration_t *ddr_configuration, uint32_t ddr_hertz, + uint32_t cpu_hertz, uint32_t ddr_ref_hertz, int board_type, + int board_rev_maj, int board_rev_min, int ddr_interface_num, + uint32_t ddr_interface_mask); + +extern void +set_vref(bdk_node_t node, int ddr_interface_num, int rank, + int range, int value); + +typedef struct { + unsigned char *rodt_ohms; + unsigned char *rtt_nom_ohms; + unsigned char *rtt_nom_table; + unsigned char *rtt_wr_ohms; + unsigned char *dic_ohms; + short *drive_strength; + short *dqx_strength; +} impedence_values_t; + +extern impedence_values_t ddr4_impedence_values; + +extern int +compute_vref_value(bdk_node_t node, int ddr_interface_num, + int rankx, int dimm_count, int rank_count, + impedence_values_t *imp_values, int is_stacked_die); + +extern unsigned short +load_dac_override(int node, int ddr_interface_num, + int dac_value, int byte); +extern int +read_DAC_DBI_settings(int node, int ddr_interface_num, + int dac_or_dbi, int *settings); +extern void +display_DAC_DBI_settings(int node, int ddr_interface_num, int dac_or_dbi, + int ecc_ena, int *settings, char *title); + +#define RODT_OHMS_COUNT 8 +#define RTT_NOM_OHMS_COUNT 8 +#define RTT_NOM_TABLE_COUNT 8 +#define RTT_WR_OHMS_COUNT 8 +#define DIC_OHMS_COUNT 3 +#define DRIVE_STRENGTH_COUNT 15 + +extern uint64_t hertz_to_psecs(uint64_t hertz); +extern uint64_t psecs_to_mts(uint64_t psecs); +extern uint64_t mts_to_hertz(uint64_t mts); +extern uint64_t pretty_psecs_to_mts(uint64_t psecs); |