romstage_fsp_params.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <console/console.h>
#include <fsp/api.h>
#include <soc/romstage.h>
#include <spd_bin.h>
#include "board_id.h"
#include "spd/spd.h"
 
void mainboard_memory_init_params(FSPM_UPD *mupd)
{
        FSP_M_CONFIG *mem_cfg = &mupd->FspmConfig;
        u8 spd_index = (get_board_id() & 0x1F) & 0x7;
        printk(BIOS_DEBUG, "spd index is 0x%x\n", spd_index);
 
        if (spd_index > 0 && spd_index != 2) {
                mem_cfg->MemorySpdDataLen = CONFIG_DIMM_SPD_SIZE;
 
                /* Memory leak is ok since we have memory mapped boot media */
                mem_cfg->MemorySpdPtr00 = spd_cbfs_map(spd_index);
                if (!mem_cfg->MemorySpdPtr00)
                        die("spd.bin not found\n");
                mem_cfg->MemorySpdPtr10 = mem_cfg->MemorySpdPtr00;
 
                mem_cfg->SpdAddressTable[0] = 0x0;
                mem_cfg->SpdAddressTable[1] = 0x0;
                mem_cfg->SpdAddressTable[2] = 0x0;
                mem_cfg->SpdAddressTable[3] = 0x0;
        } else {
                mem_cfg->MemorySpdPtr00 = 0;
                mem_cfg->MemorySpdPtr01 = 0;
                mem_cfg->MemorySpdPtr10 = 0;
                mem_cfg->MemorySpdPtr11 = 0;
 
                mem_cfg->SpdAddressTable[0] = 0xA0;
                mem_cfg->SpdAddressTable[1] = 0xA2;
                mem_cfg->SpdAddressTable[2] = 0xA4;
                mem_cfg->SpdAddressTable[3] = 0xA6;
        }
        mem_cfg->DqPinsInterleaved = 0;
        mem_cfg->CaVrefConfig = 0x2; /* VREF_CA->CHA/CHB */
        mem_cfg->ECT = 1; /* Early Command Training Enabled */
        mem_cfg->RefClk = 0; /* Auto Select CLK freq */
 
        mainboard_fill_dq_map_ch0(&mem_cfg->DqByteMapCh0);
        mainboard_fill_dq_map_ch1(&mem_cfg->DqByteMapCh1);
        mainboard_fill_dqs_map_ch0(&mem_cfg->DqsMapCpu2DramCh0);
        mainboard_fill_dqs_map_ch1(&mem_cfg->DqsMapCpu2DramCh1);
        mainboard_fill_rcomp_res_data(&mem_cfg->RcompResistor);
        mainboard_fill_rcomp_strength_data(&mem_cfg->RcompTarget);
}