/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright © 2000-2010 David Woodhouse <dwmw2@infradead.org>
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* Steven J. Hill <sjhill@realitydiluted.com>
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* Thomas Gleixner <tglx@linutronix.de>
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*
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* Contains all JEDEC related definitions
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*/
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#ifndef __LINUX_MTD_JEDEC_H
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#define __LINUX_MTD_JEDEC_H
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struct jedec_ecc_info {
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u8 ecc_bits;
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u8 codeword_size;
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__le16 bb_per_lun;
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__le16 block_endurance;
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u8 reserved[2];
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} __packed;
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/* JEDEC features */
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#define JEDEC_FEATURE_16_BIT_BUS (1 << 0)
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struct nand_jedec_params {
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/* rev info and features block */
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/* 'J' 'E' 'S' 'D' */
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u8 sig[4];
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__le16 revision;
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__le16 features;
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u8 opt_cmd[3];
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__le16 sec_cmd;
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u8 num_of_param_pages;
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u8 reserved0[18];
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/* manufacturer information block */
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char manufacturer[12];
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char model[20];
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u8 jedec_id[6];
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u8 reserved1[10];
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/* memory organization block */
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__le32 byte_per_page;
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__le16 spare_bytes_per_page;
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u8 reserved2[6];
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__le32 pages_per_block;
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__le32 blocks_per_lun;
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u8 lun_count;
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u8 addr_cycles;
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u8 bits_per_cell;
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u8 programs_per_page;
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u8 multi_plane_addr;
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u8 multi_plane_op_attr;
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u8 reserved3[38];
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/* electrical parameter block */
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__le16 async_sdr_speed_grade;
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__le16 toggle_ddr_speed_grade;
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__le16 sync_ddr_speed_grade;
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u8 async_sdr_features;
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u8 toggle_ddr_features;
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u8 sync_ddr_features;
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__le16 t_prog;
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__le16 t_bers;
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__le16 t_r;
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__le16 t_r_multi_plane;
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__le16 t_ccs;
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__le16 io_pin_capacitance_typ;
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__le16 input_pin_capacitance_typ;
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__le16 clk_pin_capacitance_typ;
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u8 driver_strength_support;
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__le16 t_adl;
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u8 reserved4[36];
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/* ECC and endurance block */
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u8 guaranteed_good_blocks;
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__le16 guaranteed_block_endurance;
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struct jedec_ecc_info ecc_info[4];
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u8 reserved5[29];
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/* reserved */
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u8 reserved6[148];
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/* vendor */
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__le16 vendor_rev_num;
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u8 reserved7[88];
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/* CRC for Parameter Page */
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__le16 crc;
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} __packed;
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#endif /* __LINUX_MTD_JEDEC_H */
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