+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright 2009 Freescale Semiconductor, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * Version 2 as published by the Free Software Foundation.
*/
#include <common.h>
-#include <i2c.h>
-#include <asm/fsl_ddr_sdram.h>
-#include <asm/fsl_ddr_dimm_params.h>
-
-static void
-get_spd(ddr3_spd_eeprom_t *spd, unsigned char i2c_address)
-{
- i2c_read(i2c_address, 0, 1, (uchar *)spd, sizeof(ddr3_spd_eeprom_t));
-}
-
-
-unsigned int fsl_ddr_get_mem_data_rate(void)
-{
- return get_ddr_freq(0);
-}
-
-void fsl_ddr_get_spd(ddr3_spd_eeprom_t *ctrl_dimms_spd,
- unsigned int ctrl_num)
-{
- unsigned int i;
- unsigned int i2c_address = 0;
-
- for (i = 0; i < CONFIG_DIMM_SLOTS_PER_CTLR; i++) {
- if (ctrl_num == 0 && i == 0)
- i2c_address = SPD_EEPROM_ADDRESS1;
- if (ctrl_num == 0 && i == 1)
- i2c_address = SPD_EEPROM_ADDRESS2;
- get_spd(&(ctrl_dimms_spd[i]), i2c_address);
- }
-}
+#include <fsl_ddr_sdram.h>
+#include <fsl_ddr_dimm_params.h>
void fsl_ddr_board_options(memctl_options_t *popts,
dimm_params_t *pdimm,
popts->write_data_delay = 2;
/*
- * Factors to consider for half-strength driver enable:
- * - number of DIMMs installed
+ * Enable half drive strength
*/
- popts->half_strength_driver_enable = 0;
+ popts->half_strength_driver_enable = 1;
+
+ /* Write leveling override */
+ popts->wrlvl_en = 1;
+ popts->wrlvl_override = 1;
+ popts->wrlvl_sample = 0xa;
+ popts->wrlvl_start = 0x4;
+
+ /* Rtt and Rtt_W override */
+ popts->rtt_override = 1;
+ popts->rtt_override_value = DDR3_RTT_60_OHM;
+ popts->rtt_wr_override_value = 0; /* Rtt_WR= dynamic ODT off */
}