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>
15 get_spd(ddr2_spd_eeprom_t
*spd
, unsigned char i2c_address
)
17 i2c_read(i2c_address
, 0, 1, (uchar
*)spd
, sizeof(ddr2_spd_eeprom_t
));
20 unsigned int fsl_ddr_get_mem_data_rate(void)
22 return get_ddr_freq(0);
25 void fsl_ddr_get_spd(ddr2_spd_eeprom_t
*ctrl_dimms_spd
,
26 unsigned int ctrl_num
)
31 printf("%s unexpected ctrl_num = %u\n", __FUNCTION__
, ctrl_num
);
35 for (i
= 0; i
< CONFIG_DIMM_SLOTS_PER_CTLR
; i
++) {
36 get_spd(&(ctrl_dimms_spd
[i
]), SPD_EEPROM_ADDRESS
);
40 void fsl_ddr_board_options(memctl_options_t
*popts
, unsigned int ctrl_num
)
43 * Factors to consider for clock adjust:
44 * - number of chips on bus
49 * This needs to be determined on a board-by-board basis.
53 popts
->clk_adjust
= 7;
56 * Factors to consider for CPO:
60 popts
->cpo_override
= 10;
63 * Factors to consider for write data delay:
73 popts
->write_data_delay
= 3;
76 * Factors to consider for half-strength driver enable:
77 * - number of DIMMs installed
79 popts
->half_strength_driver_enable
= 0;