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-rw-r--r--board/freescale/p2020ds/ddr.c129
1 files changed, 0 insertions, 129 deletions
diff --git a/board/freescale/p2020ds/ddr.c b/board/freescale/p2020ds/ddr.c
deleted file mode 100644
index debe70b18b..0000000000
--- a/board/freescale/p2020ds/ddr.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- * 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>
-
-struct board_specific_parameters {
- u32 n_ranks;
- u32 datarate_mhz_high;
- u32 clk_adjust;
- u32 cpo;
- u32 write_data_delay;
- u32 force_2t;
-};
-
-
-/*
- * This table contains all valid speeds we want to override with board
- * specific parameters. datarate_mhz_high values need to be in ascending order
- * for each n_ranks group.
- *
- * ranges for parameters:
- * wr_data_delay = 0-6
- * clk adjust = 0-8
- * cpo 2-0x1E (30)
- */
-static const struct board_specific_parameters dimm0[] = {
- /*
- * memory controller 0
- * num| hi| clk| cpo|wrdata|2T
- * ranks| mhz|adjst| | delay|
- */
-#ifdef CONFIG_SYS_FSL_DDR2
- {2, 549, 4, 0x1f, 2, 0},
- {2, 680, 4, 0x1f, 3, 0},
- {2, 850, 4, 0x1f, 4, 0},
- {1, 549, 4, 0x1f, 2, 0},
- {1, 680, 4, 0x1f, 3, 0},
- {1, 850, 4, 0x1f, 4, 0},
-#else
- {2, 850, 6, 0x1f, 4, 0},
- {1, 850, 4, 0x1f, 4, 0},
-#endif
- {}
-};
-
-void fsl_ddr_board_options(memctl_options_t *popts,
- dimm_params_t *pdimm,
- unsigned int ctrl_num)
-{
- const struct board_specific_parameters *pbsp, *pbsp_highest = NULL;
- ulong ddr_freq;
- int i;
-
- if (ctrl_num) {
- printf("Wrong parameter for controller number %d", ctrl_num);
- return;
- }
- if (!pdimm->n_ranks)
- return;
-
- /*
- * set odt_rd_cfg and odt_wr_cfg. If the there is only one dimm in
- * that controller, set odt_wr_cfg to 4 for CS0, and 0 to CS1. If
- * there are two dimms in the controller, set odt_rd_cfg to 3 and
- * odt_wr_cfg to 3 for the even CS, 0 for the odd CS.
- */
- for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
- popts->cs_local_opts[i].odt_rd_cfg = 0;
- popts->cs_local_opts[i].odt_wr_cfg = 1;
- }
-
- pbsp = dimm0;
-
- /* Get clk_adjust, cpo, write_data_delay,2T, according to the board ddr
- * freqency and n_banks specified in board_specific_parameters table.
- */
- ddr_freq = get_ddr_freq(0) / 1000000;
- while (pbsp->datarate_mhz_high) {
- if (pbsp->n_ranks == pdimm->n_ranks) {
- if (ddr_freq <= pbsp->datarate_mhz_high) {
- popts->clk_adjust = pbsp->clk_adjust;
- popts->cpo_override = pbsp->cpo;
- popts->write_data_delay =
- pbsp->write_data_delay;
- popts->twot_en = pbsp->force_2t;
- goto found;
- }
- pbsp_highest = pbsp;
- }
- pbsp++;
- }
-
- if (pbsp_highest) {
- printf("Error: board specific timing not found "
- "for data rate %lu MT/s!\n"
- "Trying to use the highest speed (%u) parameters\n",
- ddr_freq, pbsp_highest->datarate_mhz_high);
- popts->clk_adjust = pbsp_highest->clk_adjust;
- popts->cpo_override = pbsp_highest->cpo;
- popts->write_data_delay = pbsp_highest->write_data_delay;
- popts->twot_en = pbsp_highest->force_2t;
- } else {
- panic("DIMM is not supported by this board");
- }
-
-found:
- /*
- * Factors to consider for half-strength driver enable:
- * - number of DIMMs installed
- */
- popts->half_strength_driver_enable = 0;
- popts->wrlvl_en = 1;
- /* Write leveling override */
- popts->wrlvl_override = 1;
- popts->wrlvl_sample = 0xa;
- popts->wrlvl_start = 0x8;
- /* Rtt and Rtt_WR override */
- popts->rtt_override = 1;
- popts->rtt_override_value = DDR3_RTT_120_OHM;
- popts->rtt_wr_override_value = 0; /* Rtt_WR= dynamic ODT off */
-}
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