diff options
Diffstat (limited to 'board/freescale/ls2085ardb/ddr.c')
-rw-r--r-- | board/freescale/ls2085ardb/ddr.c | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/board/freescale/ls2085ardb/ddr.c b/board/freescale/ls2085ardb/ddr.c deleted file mode 100644 index 8d71ae1..0000000 --- a/board/freescale/ls2085ardb/ddr.c +++ /dev/null @@ -1,196 +0,0 @@ -/* - * Copyright 2015 Freescale Semiconductor, Inc. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <fsl_ddr_sdram.h> -#include <fsl_ddr_dimm_params.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) -{ - u8 dq_mapping_0, dq_mapping_2, dq_mapping_3; - const struct board_specific_parameters *pbsp, *pbsp_highest = NULL; - ulong ddr_freq; - int slot; - - if (ctrl_num > 2) { - printf("Not supported controller number %d\n", ctrl_num); - return; - } - - for (slot = 0; slot < CONFIG_DIMM_SLOTS_PER_CTLR; slot++) { - if (pdimm[slot].n_ranks) - break; - } - - if (slot >= CONFIG_DIMM_SLOTS_PER_CTLR) - return; - - /* - * we use identical timing for all slots. If needed, change the code - * to pbsp = rdimms[ctrl_num] or pbsp = udimms[ctrl_num]; - */ - if (popts->registered_dimm_en) - pbsp = rdimms[ctrl_num]; - else - pbsp = udimms[ctrl_num]; - - - /* Get clk_adjust, wrlvl_start, wrlvl_ctl, according to the board ddr - * freqency and n_banks specified in board_specific_parameters table. - */ - ddr_freq = get_ddr_freq(ctrl_num) / 1000000; - while (pbsp->datarate_mhz_high) { - if (pbsp->n_ranks == pdimm[slot].n_ranks && - (pdimm[slot].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 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->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); - - if (ctrl_num == CONFIG_DP_DDR_CTRL) { - /* force DDR bus width to 32 bits */ - popts->data_bus_width = 1; - popts->otf_burst_chop_en = 0; - popts->burst_length = DDR_BL8; - popts->bstopre = 0; /* enable auto precharge */ - /* - * Layout optimization results byte mapping - * Byte 0 -> Byte ECC - * Byte 1 -> Byte 3 - * Byte 2 -> Byte 2 - * Byte 3 -> Byte 1 - * Byte ECC -> Byte 0 - */ - dq_mapping_0 = pdimm[slot].dq_mapping[0]; - dq_mapping_2 = pdimm[slot].dq_mapping[2]; - dq_mapping_3 = pdimm[slot].dq_mapping[3]; - pdimm[slot].dq_mapping[0] = pdimm[slot].dq_mapping[8]; - pdimm[slot].dq_mapping[1] = pdimm[slot].dq_mapping[9]; - pdimm[slot].dq_mapping[2] = pdimm[slot].dq_mapping[6]; - pdimm[slot].dq_mapping[3] = pdimm[slot].dq_mapping[7]; - pdimm[slot].dq_mapping[6] = dq_mapping_2; - pdimm[slot].dq_mapping[7] = dq_mapping_3; - pdimm[slot].dq_mapping[8] = dq_mapping_0; - pdimm[slot].dq_mapping[9] = 0; - pdimm[slot].dq_mapping[10] = 0; - pdimm[slot].dq_mapping[11] = 0; - pdimm[slot].dq_mapping[12] = 0; - pdimm[slot].dq_mapping[13] = 0; - pdimm[slot].dq_mapping[14] = 0; - pdimm[slot].dq_mapping[15] = 0; - pdimm[slot].dq_mapping[16] = 0; - pdimm[slot].dq_mapping[17] = 0; - } - /* To work at higher than 1333MT/s */ - popts->half_strength_driver_enable = 0; - /* - * Write leveling override - */ - popts->wrlvl_override = 1; - popts->wrlvl_sample = 0x0; /* 32 clocks */ - - /* - * Rtt and Rtt_WR override - */ - popts->rtt_override = 0; - - /* Enable ZQ calibration */ - popts->zq_en = 1; - - if (ddr_freq < 2350) { - popts->ddr_cdr1 = DDR_CDR1_DHC_EN | - DDR_CDR1_ODT(DDR_CDR_ODT_60ohm); - popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_60ohm) | - DDR_CDR2_VREF_RANGE_2; - } else { - popts->ddr_cdr1 = DDR_CDR1_DHC_EN | - DDR_CDR1_ODT(DDR_CDR_ODT_100ohm); - popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_100ohm) | - DDR_CDR2_VREF_RANGE_2; - } -} - -phys_size_t initdram(int board_type) -{ - phys_size_t dram_size; - -#if defined(CONFIG_SPL) && !defined(CONFIG_SPL_BUILD) - return fsl_ddr_sdram_size(); -#else - puts("Initializing DDR....using SPD\n"); - - dram_size = fsl_ddr_sdram(); -#endif - - return dram_size; -} - -void dram_init_banksize(void) -{ -#ifdef CONFIG_SYS_DP_DDR_BASE_PHY - phys_size_t dp_ddr_size; -#endif - - gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; - if (gd->ram_size > CONFIG_SYS_LS2_DDR_BLOCK1_SIZE) { - gd->bd->bi_dram[0].size = CONFIG_SYS_LS2_DDR_BLOCK1_SIZE; - gd->bd->bi_dram[1].start = CONFIG_SYS_DDR_BLOCK2_BASE; - gd->bd->bi_dram[1].size = gd->ram_size - - CONFIG_SYS_LS2_DDR_BLOCK1_SIZE; - } else { - gd->bd->bi_dram[0].size = gd->ram_size; - } - -#ifdef CONFIG_SYS_DP_DDR_BASE_PHY - /* initialize DP-DDR here */ - puts("DP-DDR: "); - /* - * DDR controller use 0 as the base address for binding. - * It is mapped to CONFIG_SYS_DP_DDR_BASE for core to access. - */ - dp_ddr_size = fsl_other_ddr_sdram(CONFIG_SYS_DP_DDR_BASE_PHY, - CONFIG_DP_DDR_CTRL, - CONFIG_DP_DDR_NUM_CTRLS, - CONFIG_DP_DDR_DIMM_SLOTS_PER_CTLR, - NULL, NULL, NULL); - if (dp_ddr_size) { - gd->bd->bi_dram[2].start = CONFIG_SYS_DP_DDR_BASE; - gd->bd->bi_dram[2].size = dp_ddr_size; - } else { - puts("Not detected"); - } -#endif -} |