mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-05 20:54:31 +00:00
380b8f307c
Currently, there is only one EEPROM on c29xpcie board which is AT24C1024. We program the SPD data at beginning of the AT24C1024.But the AT24C1024 has a 16-bit sub-address mode. This patch is tomake it work when getting SPD in a 16-bit sub-address EEPROM. Signed-off-by: Po Liu <Po.Liu@freescale.com> Acked-by: York Sun <yorksun@freescale.com>
107 lines
2.4 KiB
C
107 lines
2.4 KiB
C
/*
|
|
* Copyright 2013 Freescale Semiconductor, Inc.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <i2c.h>
|
|
#include <asm/fsl_law.h>
|
|
#include <fsl_ddr_sdram.h>
|
|
#include <fsl_ddr_dimm_params.h>
|
|
|
|
#include "cpld.h"
|
|
|
|
#define C29XPCIE_HARDWARE_REVA 0x40
|
|
/*
|
|
* Micron MT41J128M16HA-15E
|
|
* */
|
|
dimm_params_t ddr_raw_timing = {
|
|
.n_ranks = 1,
|
|
.rank_density = 536870912u,
|
|
.capacity = 536870912u,
|
|
.primary_sdram_width = 32,
|
|
.ec_sdram_width = 8,
|
|
.registered_dimm = 0,
|
|
.mirrored_dimm = 0,
|
|
.n_row_addr = 14,
|
|
.n_col_addr = 10,
|
|
.n_banks_per_sdram_device = 8,
|
|
.edc_config = 2,
|
|
.burst_lengths_bitmask = 0x0c,
|
|
|
|
.tckmin_x_ps = 1650,
|
|
.caslat_x = 0x7e << 4, /* 5,6,7,8,9,10 */
|
|
.taa_ps = 14050,
|
|
.twr_ps = 15000,
|
|
.trcd_ps = 13500,
|
|
.trrd_ps = 75000,
|
|
.trp_ps = 13500,
|
|
.tras_ps = 40000,
|
|
.trc_ps = 49500,
|
|
.trfc_ps = 160000,
|
|
.twtr_ps = 75000,
|
|
.trtp_ps = 75000,
|
|
.refresh_rate_ps = 7800000,
|
|
.tfaw_ps = 30000,
|
|
};
|
|
|
|
int fsl_ddr_get_dimm_params(dimm_params_t *pdimm,
|
|
unsigned int controller_number,
|
|
unsigned int dimm_number)
|
|
{
|
|
const char dimm_model[] = "Fixed DDR on board";
|
|
|
|
if ((controller_number == 0) && (dimm_number == 0)) {
|
|
memcpy(pdimm, &ddr_raw_timing, sizeof(dimm_params_t));
|
|
memset(pdimm->mpart, 0, sizeof(pdimm->mpart));
|
|
memcpy(pdimm->mpart, dimm_model, sizeof(dimm_model) - 1);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void fsl_ddr_board_options(memctl_options_t *popts,
|
|
dimm_params_t *pdimm,
|
|
unsigned int ctrl_num)
|
|
{
|
|
struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
|
|
int i;
|
|
|
|
popts->clk_adjust = 4;
|
|
popts->cpo_override = 0x1f;
|
|
popts->write_data_delay = 4;
|
|
popts->half_strength_driver_enable = 1;
|
|
popts->bstopre = 0x3cf;
|
|
popts->quad_rank_present = 1;
|
|
popts->rtt_override = 1;
|
|
popts->rtt_override_value = 1;
|
|
popts->dynamic_power = 1;
|
|
/* Write leveling override */
|
|
popts->wrlvl_en = 1;
|
|
popts->wrlvl_override = 1;
|
|
popts->wrlvl_sample = 0xf;
|
|
popts->wrlvl_start = 0x4;
|
|
popts->trwt_override = 1;
|
|
popts->trwt = 0;
|
|
|
|
if (in_8(&cpld_data->hwver) == C29XPCIE_HARDWARE_REVA)
|
|
popts->ecc_mode = 0;
|
|
|
|
for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
|
|
popts->cs_local_opts[i].odt_rd_cfg = FSL_DDR_ODT_NEVER;
|
|
popts->cs_local_opts[i].odt_wr_cfg = FSL_DDR_ODT_CS;
|
|
}
|
|
}
|
|
|
|
void get_spd(generic_spd_eeprom_t *spd, u8 i2c_address)
|
|
{
|
|
int ret = i2c_read(i2c_address, 0, 2, (uint8_t *)spd,
|
|
sizeof(generic_spd_eeprom_t));
|
|
|
|
if (ret) {
|
|
printf("DDR: failed to read SPD from address %u\n",
|
|
i2c_address);
|
|
memset(spd, 0, sizeof(generic_spd_eeprom_t));
|
|
}
|
|
}
|