diff options
Diffstat (limited to 'qemu/roms/u-boot/board/freescale/t1040qds/ddr.c')
-rw-r--r-- | qemu/roms/u-boot/board/freescale/t1040qds/ddr.c | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/qemu/roms/u-boot/board/freescale/t1040qds/ddr.c b/qemu/roms/u-boot/board/freescale/t1040qds/ddr.c deleted file mode 100644 index 43f952f9c..000000000 --- a/qemu/roms/u-boot/board/freescale/t1040qds/ddr.c +++ /dev/null @@ -1,116 +0,0 @@ -/* - * Copyright 2013-2014 Freescale Semiconductor, Inc. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <i2c.h> -#include <hwconfig.h> -#include <asm/mmu.h> -#include <fsl_ddr_sdram.h> -#include <fsl_ddr_dimm_params.h> -#include <asm/fsl_law.h> -#include "ddr.h" - -DECLARE_GLOBAL_DATA_PTR; - -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; - - if (ctrl_num > 2) { - printf("Not supported controller number %d\n", ctrl_num); - return; - } - if (!pdimm->n_ranks) - return; - - pbsp = udimms[0]; - - /* 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 && - (pdimm->rank_density >> 30) >= pbsp->rank_gb) { - if (ddr_freq <= pbsp->datarate_mhz_high) { - popts->clk_adjust = pbsp->clk_adjust; - popts->wrlvl_start = pbsp->wrlvl_start; - popts->wrlvl_ctl_2 = pbsp->wrlvl_ctl_2; - popts->wrlvl_ctl_3 = pbsp->wrlvl_ctl_3; - goto found; - } - pbsp_highest = pbsp; - } - pbsp++; - } - - if (pbsp_highest) { - printf("Error: board specific timing not found\n"); - printf("for data rate %lu MT/s\n", ddr_freq); - printf("Trying to use the highest speed (%u) parameters\n", - pbsp_highest->datarate_mhz_high); - popts->clk_adjust = pbsp_highest->clk_adjust; - popts->wrlvl_start = pbsp_highest->wrlvl_start; - popts->wrlvl_ctl_2 = pbsp->wrlvl_ctl_2; - popts->wrlvl_ctl_3 = pbsp->wrlvl_ctl_3; - } else { - panic("DIMM is not supported by this board"); - } -found: - debug("Found timing match: n_ranks %d, data rate %d, rank_gb %d\n" - "\tclk_adjust %d, wrlvl_start %d, wrlvl_ctrl_2 0x%x, " - "wrlvl_ctrl_3 0x%x\n", - pbsp->n_ranks, pbsp->datarate_mhz_high, pbsp->rank_gb, - pbsp->clk_adjust, pbsp->wrlvl_start, pbsp->wrlvl_ctl_2, - pbsp->wrlvl_ctl_3); - - /* - * Factors to consider for half-strength driver enable: - * - number of DIMMs installed - */ - popts->half_strength_driver_enable = 1; - /* - * Write leveling override - */ - popts->wrlvl_override = 1; - popts->wrlvl_sample = 0xf; - - /* - * rtt and rtt_wr override - */ - popts->rtt_override = 0; - - /* Enable ZQ calibration */ - popts->zq_en = 1; - - /* DHC_EN =1, ODT = 75 Ohm */ -#ifdef CONFIG_SYS_FSL_DDR4 - popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_80ohm); - popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_80ohm) | - DDR_CDR2_VREF_OVRD(70); /* Vref = 70% */ -#else - popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_75ohm); - popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_75ohm); -#endif -} - -phys_size_t initdram(int board_type) -{ - phys_size_t dram_size; - - puts("Initializing....using SPD\n"); - - dram_size = fsl_ddr_sdram(); - - dram_size = setup_ddr_tlbs(dram_size / 0x100000); - dram_size *= 0x100000; - - puts(" DDR: "); - return dram_size; -} |