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0dd38a35f4
Some DDR related structures present in fsl_ddr_dimm_params.h, fsl_ddr_sdram.h, ddr_spd.h has various parameters with embedded acronyms capitalized that trigger the CamelCase warning in checkpatch.pl Convert those variable names to smallcase naming convention and modify all files which are using these structures with modified structures. Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
/*
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* Copyright 2008 Freescale Semiconductor, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* Version 2 as published by the Free Software Foundation.
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*/
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#include <common.h>
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#include <asm/fsl_ddr_sdram.h>
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#include <asm/fsl_ddr_dimm_params.h>
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void fsl_ddr_board_options(memctl_options_t *popts,
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dimm_params_t *pdimm,
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unsigned int ctrl_num)
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{
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/*
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* Factors to consider for clock adjust:
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* - number of chips on bus
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* - position of slot
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* - DDR1 vs. DDR2?
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* - ???
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*
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* This needs to be determined on a board-by-board basis.
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* 0110 3/4 cycle late
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* 0111 7/8 cycle late
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*/
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popts->clk_adjust = 7;
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/*
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* Factors to consider for CPO:
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* - frequency
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* - ddr1 vs. ddr2
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*/
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popts->cpo_override = 10;
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/*
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* Factors to consider for write data delay:
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* - number of DIMMs
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*
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* 1 = 1/4 clock delay
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* 2 = 1/2 clock delay
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* 3 = 3/4 clock delay
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* 4 = 1 clock delay
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* 5 = 5/4 clock delay
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* 6 = 3/2 clock delay
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*/
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popts->write_data_delay = 3;
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/* 2T timing enable */
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popts->twot_en = 1;
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/*
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* Factors to consider for half-strength driver enable:
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* - number of DIMMs installed
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*/
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popts->half_strength_driver_enable = 0;
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}
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