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- /*
- * Copyright 2008 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier: GPL-2.0
- */
- #include <common.h>
- #include <fsl_ddr_sdram.h>
- #include <fsl_ddr_dimm_params.h>
- void fsl_ddr_board_options(memctl_options_t *popts,
- dimm_params_t *pdimm,
- unsigned int ctrl_num)
- {
- /*
- * Factors to consider for clock adjust:
- * - number of chips on bus
- * - position of slot
- * - DDR1 vs. DDR2?
- * - ???
- *
- * This needs to be determined on a board-by-board basis.
- * 0110 3/4 cycle late
- * 0111 7/8 cycle late
- */
- popts->clk_adjust = 7;
- /*
- * Factors to consider for CPO:
- * - frequency
- * - ddr1 vs. ddr2
- */
- popts->cpo_override = 10;
- /*
- * Factors to consider for write data delay:
- * - number of DIMMs
- *
- * 1 = 1/4 clock delay
- * 2 = 1/2 clock delay
- * 3 = 3/4 clock delay
- * 4 = 1 clock delay
- * 5 = 5/4 clock delay
- * 6 = 3/2 clock delay
- */
- popts->write_data_delay = 3;
- /*
- * Factors to consider for half-strength driver enable:
- * - number of DIMMs installed
- */
- popts->half_strength_driver_enable = 0;
- }
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