/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright © 2000-2010 David Woodhouse <dwmw2@infradead.org>
 *                       Steven J. Hill <sjhill@realitydiluted.com>
 *                       Thomas Gleixner <tglx@kernel.org>
 *
 * Contains all JEDEC related definitions
 */

#ifndef __LINUX_MTD_JEDEC_H
#define __LINUX_MTD_JEDEC_H

struct jedec_ecc_info {
        u8 ecc_bits;
        u8 codeword_size;
        __le16 bb_per_lun;
        __le16 block_endurance;
        u8 reserved[2];
} __packed;

/* JEDEC features */
#define JEDEC_FEATURE_16_BIT_BUS        (1 << 0)

/* JEDEC Optional Commands */
#define JEDEC_OPT_CMD_READ_CACHE        BIT(1)

struct nand_jedec_params {
        /* rev info and features block */
        /* 'J' 'E' 'S' 'D'  */
        u8 sig[4];
        __le16 revision;
        __le16 features;
        u8 opt_cmd[3];
        __le16 sec_cmd;
        u8 num_of_param_pages;
        u8 reserved0[18];

        /* manufacturer information block */
        char manufacturer[12];
        char model[20];
        u8 jedec_id[6];
        u8 reserved1[10];

        /* memory organization block */
        __le32 byte_per_page;
        __le16 spare_bytes_per_page;
        u8 reserved2[6];
        __le32 pages_per_block;
        __le32 blocks_per_lun;
        u8 lun_count;
        u8 addr_cycles;
        u8 bits_per_cell;
        u8 programs_per_page;
        u8 multi_plane_addr;
        u8 multi_plane_op_attr;
        u8 reserved3[38];

        /* electrical parameter block */
        __le16 async_sdr_speed_grade;
        __le16 toggle_ddr_speed_grade;
        __le16 sync_ddr_speed_grade;
        u8 async_sdr_features;
        u8 toggle_ddr_features;
        u8 sync_ddr_features;
        __le16 t_prog;
        __le16 t_bers;
        __le16 t_r;
        __le16 t_r_multi_plane;
        __le16 t_ccs;
        __le16 io_pin_capacitance_typ;
        __le16 input_pin_capacitance_typ;
        __le16 clk_pin_capacitance_typ;
        u8 driver_strength_support;
        __le16 t_adl;
        u8 reserved4[36];

        /* ECC and endurance block */
        u8 guaranteed_good_blocks;
        __le16 guaranteed_block_endurance;
        struct jedec_ecc_info ecc_info[4];
        u8 reserved5[29];

        /* reserved */
        u8 reserved6[148];

        /* vendor */
        __le16 vendor_rev_num;
        u8 reserved7[88];

        /* CRC for Parameter Page */
        __le16 crc;
} __packed;

#endif /* __LINUX_MTD_JEDEC_H */