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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright © 2000-2010 David Woodhouse <dwmw2@infradead.org>
* Steven J. Hill <sjhill@realitydiluted.com>
* Thomas Gleixner <tglx@linutronix.de>
*
* 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 */