mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-27 04:18:51 +09:00
![York Sun](/assets/img/avatar_default.png)
Freescale DDR driver has been used for mpc83xx, mpc85xx, mpc86xx SoCs. The similar DDR controllers will be used for ARM-based SoCs. Signed-off-by: York Sun <yorksun@freescale.com>
35 lines
965 B
C
35 lines
965 B
C
/*
|
|
* Copyright 2009-2010 eXMeritus, A Boeing Company
|
|
* Copyright 2008-2009 Freescale Semiconductor, Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* Version 2 as published by the Free Software Foundation.
|
|
*/
|
|
|
|
#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)
|
|
{
|
|
/*
|
|
* We only support one DIMM, so according to the P2020 docs we should
|
|
* set the options as follows:
|
|
*/
|
|
popts->cs_local_opts[0].odt_rd_cfg = 0;
|
|
popts->cs_local_opts[0].odt_wr_cfg = 4;
|
|
popts->cs_local_opts[1].odt_rd_cfg = 0;
|
|
popts->cs_local_opts[1].odt_wr_cfg = 0;
|
|
popts->half_strength_driver_enable = 0;
|
|
|
|
/* Manually configured for our static clock rate */
|
|
popts->clk_adjust = 4;
|
|
popts->cpo_override = 4;
|
|
popts->write_data_delay = 2;
|
|
popts->twot_en = 0;
|
|
}
|