2 * Copyright 2008 Freescale Semiconductor, Inc.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * Version 2 as published by the Free Software Foundation.
12 #include <asm/fsl_ddr_sdram.h>
13 #include <asm/fsl_ddr_dimm_params.h>
16 get_spd(ddr2_spd_eeprom_t *spd, unsigned char i2c_address)
18 i2c_read(i2c_address, 0, 1, (uchar *)spd, sizeof(ddr2_spd_eeprom_t));
21 void fsl_ddr_get_spd(ddr2_spd_eeprom_t *ctrl_dimms_spd,
22 unsigned int ctrl_num)
27 printf("%s unexpected ctrl_num = %u\n", __FUNCTION__, ctrl_num);
31 for (i = 0; i < CONFIG_DIMM_SLOTS_PER_CTLR; i++) {
32 get_spd(&(ctrl_dimms_spd[i]), SPD_EEPROM_ADDRESS);
36 void fsl_ddr_board_options(memctl_options_t *popts,
38 unsigned int ctrl_num)
41 * Factors to consider for clock adjust:
42 * - number of chips on bus
47 * This needs to be determined on a board-by-board basis.
51 popts->clk_adjust = 6;
54 * Factors to consider for CPO:
58 popts->cpo_override = 10;
61 * Factors to consider for write data delay:
71 popts->write_data_delay = 3;
74 * Factors to consider for half-strength driver enable:
75 * - number of DIMMs installed
77 popts->half_strength_driver_enable = 0;