diff options
Diffstat (limited to 'board/freescale/p1022ds/ddr.c')
-rw-r--r-- | board/freescale/p1022ds/ddr.c | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/board/freescale/p1022ds/ddr.c b/board/freescale/p1022ds/ddr.c deleted file mode 100644 index 70932115f4..0000000000 --- a/board/freescale/p1022ds/ddr.c +++ /dev/null @@ -1,106 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Copyright 2010 Freescale Semiconductor, Inc. - * Authors: Srikanth Srinivasan <srikanth.srinivasan@freescale.com> - * Timur Tabi <timur@freescale.com> - */ - -#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; /* Range: 0-8 */ - u32 cpo; /* Range: 2-31 */ - u32 write_data_delay; /* Range: 0-6 */ - 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. - */ -static const struct board_specific_parameters dimm0[] = { - /* - * memory controller 0 - * num| hi| clk| cpo|wrdata|2T - * ranks| mhz|adjst| | delay| - */ - {1, 549, 5, 31, 3, 0}, - {1, 850, 5, 31, 5, 0}, - {2, 549, 5, 31, 3, 0}, - {2, 850, 5, 31, 5, 0}, - {} -}; - -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; - unsigned long ddr_freq; - unsigned 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. */ - 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->clk_adjust; - popts->cpo_override = pbsp->cpo; - popts->write_data_delay = pbsp->write_data_delay; - popts->twot_en = pbsp->force_2t; - } else { - panic("DIMM is not supported by this board"); - } - -found: - popts->half_strength_driver_enable = 1; - - /* Per AN4039, enable ZQ calibration. */ - popts->zq_en = 1; - - /* - * For wake-up on ARP, we need auto self refresh enabled - */ - popts->auto_self_refresh_en = 1; - popts->sr_it = 0xb; -} |