mirror of
https://github.com/AsahiLinux/u-boot
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
106 lines
2.4 KiB
C
106 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2013 Freescale Semiconductor, Inc.
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*/
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#include <common.h>
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#include <i2c.h>
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#include <asm/fsl_law.h>
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#include <fsl_ddr_sdram.h>
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#include <fsl_ddr_dimm_params.h>
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#include "cpld.h"
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#define C29XPCIE_HARDWARE_REVA 0x40
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/*
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* Micron MT41J128M16HA-15E
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* */
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dimm_params_t ddr_raw_timing = {
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.n_ranks = 1,
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.rank_density = 536870912u,
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.capacity = 536870912u,
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.primary_sdram_width = 32,
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.ec_sdram_width = 8,
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.registered_dimm = 0,
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.mirrored_dimm = 0,
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.n_row_addr = 14,
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.n_col_addr = 10,
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.n_banks_per_sdram_device = 8,
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.edc_config = 2,
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.burst_lengths_bitmask = 0x0c,
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.tckmin_x_ps = 1650,
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.caslat_x = 0x7e << 4, /* 5,6,7,8,9,10 */
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.taa_ps = 14050,
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.twr_ps = 15000,
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.trcd_ps = 13500,
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.trrd_ps = 75000,
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.trp_ps = 13500,
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.tras_ps = 40000,
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.trc_ps = 49500,
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.trfc_ps = 160000,
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.twtr_ps = 75000,
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.trtp_ps = 75000,
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.refresh_rate_ps = 7800000,
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.tfaw_ps = 30000,
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};
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int fsl_ddr_get_dimm_params(dimm_params_t *pdimm,
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unsigned int controller_number,
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unsigned int dimm_number)
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{
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const char dimm_model[] = "Fixed DDR on board";
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if ((controller_number == 0) && (dimm_number == 0)) {
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memcpy(pdimm, &ddr_raw_timing, sizeof(dimm_params_t));
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memset(pdimm->mpart, 0, sizeof(pdimm->mpart));
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memcpy(pdimm->mpart, dimm_model, sizeof(dimm_model) - 1);
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}
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return 0;
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}
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void fsl_ddr_board_options(memctl_options_t *popts,
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dimm_params_t *pdimm,
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unsigned int ctrl_num)
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{
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struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
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int i;
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popts->clk_adjust = 4;
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popts->cpo_override = 0x1f;
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popts->write_data_delay = 4;
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popts->half_strength_driver_enable = 1;
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popts->bstopre = 0x3cf;
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popts->quad_rank_present = 1;
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popts->rtt_override = 1;
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popts->rtt_override_value = 1;
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popts->dynamic_power = 1;
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/* Write leveling override */
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popts->wrlvl_en = 1;
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popts->wrlvl_override = 1;
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popts->wrlvl_sample = 0xf;
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popts->wrlvl_start = 0x4;
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popts->trwt_override = 1;
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popts->trwt = 0;
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if (in_8(&cpld_data->hwver) == C29XPCIE_HARDWARE_REVA)
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popts->ecc_mode = 0;
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for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
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popts->cs_local_opts[i].odt_rd_cfg = FSL_DDR_ODT_NEVER;
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popts->cs_local_opts[i].odt_wr_cfg = FSL_DDR_ODT_CS;
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}
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}
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void get_spd(generic_spd_eeprom_t *spd, u8 i2c_address)
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{
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int ret = i2c_read(i2c_address, 0, 2, (uint8_t *)spd,
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sizeof(generic_spd_eeprom_t));
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if (ret) {
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printf("DDR: failed to read SPD from address %u\n",
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i2c_address);
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memset(spd, 0, sizeof(generic_spd_eeprom_t));
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}
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}
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