spd.h

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#ifndef MAINBOARD_SPD_H
 
#include <fsp/soc_binding.h>
#include <gpio.h>
#include "../gpio.h"
 
#define MAINBOARD_SPD_H
 
#define SPD_LEN                 256
 
#define SPD_DRAM_TYPE           2
#define  SPD_DRAM_DDR3          0x0b
#define  SPD_DRAM_LPDDR3        0xf1
#define SPD_DENSITY_BANKS       4
#define SPD_ADDRESSING          5
#define SPD_ORGANIZATION        7
#define SPD_BUS_DEV_WIDTH       8
#define SPD_PART_OFF            128
#define  SPD_PART_LEN           18
#define SPD_MANU_OFF            148
 
#define HYNIX_SINGLE_CHAN       0x1
#define SAMSUNG_SINGLE_CHAN     0x4
#define MIC_SINGLE_CHAN         0x5
 
/* PCH_MEM_CFG[3:0] */
#define MAX_MEMORY_CONFIG       0x10
#define K4E6E304EE_MEM_ID       0x3
 
static inline int get_spd_index(void) {
        /* PCH_MEM_CFG[3:0] */
        gpio_t spd_gpios[] = {
                GPIO_MEM_CONFIG_0,
                GPIO_MEM_CONFIG_1,
                GPIO_MEM_CONFIG_2,
                GPIO_MEM_CONFIG_3,
        };
        return (gpio_base2_value(spd_gpios, ARRAY_SIZE(spd_gpios)));
}
void mainboard_fill_dq_map_data(void *dq_map_ch0, void *dq_map_ch1);
void mainboard_fill_dqs_map_data(void *dqs_map_ch0, void *dqs_map_ch1);
void mainboard_fill_rcomp_res_data(void *rcomp_ptr);
void mainboard_fill_rcomp_strength_data(void *rcomp_strength_ptr);
uintptr_t mainboard_get_spd_data(void);
int mainboard_has_dual_channel_mem(void);
#endif