uboot-phytec
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committed 4a5b6a356a7/* * Module name: %M% * Description: * Serial Presence Detect Definitions Module * SCCS identification: %I% * Branch: %B% * Sequence: %S% * Date newest applied delta was created (MM/DD/YY): %G% * Time newest applied delta was created (HH:MM:SS): %U% * SCCS file name %F% * Fully qualified SCCS file name: * %P% * Copyright: * (C) COPYRIGHT MOTOROLA, INC. 1996 * ALL RIGHTS RESERVED * Notes: * 1. All data was taken from an IBM application note titled * "Serial Presence Detect Definitions". * History: * Date Who * * 10/24/96 Rob Baxter * Initial release. * *//* * serial PD byte assignment address map (256 byte EEPROM) */typedef struct dimm{ uchar n_bytes; /* 00 number of bytes written/used */ uchar t_bytes; /* 01 total number of bytes in serial PD device */ uchar fmt; /* 02 fundamental memory type (FPM/EDO/SDRAM) */ uchar n_row; /* 03 number of rows */ uchar n_col; /* 04 number of columns */ uchar n_banks; /* 05 number of banks */ uchar data_w_lo; /* 06 data width */ uchar data_w_hi; /* 07 data width */ uchar ifl; /* 08 interface levels */ uchar a_ras; /* 09 RAS access */ uchar a_cas; /* 0A CAS access */ uchar ct; /* 0B configuration type (non-parity/parity/ECC) */ uchar refresh_rt; /* 0C refresh rate/type */ uchar p_dram_o; /* 0D primary DRAM organization */ uchar s_dram_o; /* 0E secondary DRAM organization (parity/ECC-checkbits) */ uchar reserved[17]; /* 0F reserved fields for future offerings */ uchar ss_info[32]; /* 20 superset information (may be used in the future) */ uchar m_info[64]; /* 40 manufacturer information (optional) */ uchar unused[128]; /* 80 unused storage locations */} dimm_t;/* * memory type definitions *//* standard FPM (fast page mode) DRAM *//* EDO (extended data out) *//* pipelined nibble *//* SDRAM (synchronous DRAM) */