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>
14 static void get_spd(ddr2_spd_eeprom_t *spd, unsigned char i2c_address)
16 i2c_read(i2c_address, 0, 1, (uchar *)spd, sizeof(ddr2_spd_eeprom_t));
19 unsigned int fsl_ddr_get_mem_data_rate(void)
21 return get_ddr_freq(0);
24 void fsl_ddr_get_spd(ddr2_spd_eeprom_t *ctrl_dimms_spd,
25 unsigned int ctrl_num)
30 printf("%s unexpected ctrl_num = %u\n", __FUNCTION__, ctrl_num);
34 for (i = 0; i < CONFIG_DIMM_SLOTS_PER_CTLR; i++) {
35 get_spd(&(ctrl_dimms_spd[i]), SPD_EEPROM_ADDRESS);
39 void fsl_ddr_board_options(memctl_options_t *popts, unsigned int ctrl_num)
42 * Factors to consider for clock adjust:
43 * - number of chips on bus
48 * This needs to be determined on a board-by-board basis.
52 popts->clk_adjust = 7;
55 * Factors to consider for CPO:
59 popts->cpo_override = 10;
62 * Factors to consider for write data delay:
72 popts->write_data_delay = 3;
75 * Factors to consider for half-strength driver enable:
76 * - number of DIMMs installed
78 popts->half_strength_driver_enable = 0;