| /* 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) |
| |
| 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 */ |
