gddr_cal.h

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/*
 * Copyright (c) 2025 Tenstorrent AI ULC
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef GDDR_CAL_H
#define GDDR_CAL_H
 
#include <stdint.h>
 
#define GDDR_CAL_NUM_ASICS       8
#define GDDR_CAL_NUM_CONTROLLERS 8

#define GDDR_CA_VREFC_OFFSET_MAX        0xF
#define GDDR_CA_TERMINATION_OFFSET_MAX  3
#define GDDR_CA_OCD_PULLDOWN_OFFSET_MAX 7
#define GDDR_CA_OCD_PULLDOWN_UNSET      0xFF

typedef struct {
        uint8_t ca_vrefc_offset;
        uint8_t ca_termination_offset;
        uint8_t ca_ocd_pulldown_offset;
        uint8_t valid;
} gddr_cal_entry_t;

typedef struct {
        gddr_cal_entry_t entries[GDDR_CAL_NUM_ASICS][GDDR_CAL_NUM_CONTROLLERS];
} gddr_cal_table_t;

int gddr_cal_read(gddr_cal_table_t *table);

int gddr_cal_write(const gddr_cal_table_t *table);
 
#endif /* GDDR_CAL_H */