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usr
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src
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linux-headers-6.8.0-36
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include
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linux
/
mtd
/ [
drwxr-xr-x
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onfi.h
/* 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 ONFI related definitions */ #ifndef __LINUX_MTD_ONFI_H #define __LINUX_MTD_ONFI_H #include <linux/types.h> #include <linux/bitfield.h> /* ONFI version bits */ #define ONFI_VERSION_1_0 BIT(1) #define ONFI_VERSION_2_0 BIT(2) #define ONFI_VERSION_2_1 BIT(3) #define ONFI_VERSION_2_2 BIT(4) #define ONFI_VERSION_2_3 BIT(5) #define ONFI_VERSION_3_0 BIT(6) #define ONFI_VERSION_3_1 BIT(7) #define ONFI_VERSION_3_2 BIT(8) #define ONFI_VERSION_4_0 BIT(9) /* ONFI features */ #define ONFI_FEATURE_16_BIT_BUS BIT(0) #define ONFI_FEATURE_NV_DDR BIT(5) #define ONFI_FEATURE_EXT_PARAM_PAGE BIT(7) /* ONFI timing mode, used in both asynchronous and synchronous mode */ #define ONFI_DATA_INTERFACE_SDR 0 #define ONFI_DATA_INTERFACE_NVDDR BIT(4) #define ONFI_DATA_INTERFACE_NVDDR2 BIT(5) #define ONFI_TIMING_MODE_0 BIT(0) #define ONFI_TIMING_MODE_1 BIT(1) #define ONFI_TIMING_MODE_2 BIT(2) #define ONFI_TIMING_MODE_3 BIT(3) #define ONFI_TIMING_MODE_4 BIT(4) #define ONFI_TIMING_MODE_5 BIT(5) #define ONFI_TIMING_MODE_UNKNOWN BIT(6) #define ONFI_TIMING_MODE_PARAM(x) FIELD_GET(GENMASK(3, 0), (x)) /* ONFI feature number/address */ #define ONFI_FEATURE_NUMBER 256 #define ONFI_FEATURE_ADDR_TIMING_MODE 0x1 /* Vendor-specific feature address (Micron) */ #define ONFI_FEATURE_ADDR_READ_RETRY 0x89 #define ONFI_FEATURE_ON_DIE_ECC 0x90 #define ONFI_FEATURE_ON_DIE_ECC_EN BIT(3) /* ONFI subfeature parameters length */ #define ONFI_SUBFEATURE_PARAM_LEN 4 /* ONFI optional commands SET/GET FEATURES supported? */ #define ONFI_OPT_CMD_READ_CACHE BIT(1) #define ONFI_OPT_CMD_SET_GET_FEATURES BIT(2) struct nand_onfi_params { /* rev info and features block */ /* 'O' 'N' 'F' 'I' */ u8 sig[4]; __le16 revision; __le16 features; __le16 opt_cmd; u8 reserved0[2]; __le16 ext_param_page_length; /* since ONFI 2.1 */ u8 num_of_param_pages; /* since ONFI 2.1 */ u8 reserved1[17]; /* manufacturer information block */ char manufacturer[12]; char model[20]; u8 jedec_id; __le16 date_code; u8 reserved2[13]; /* memory organization block */ __le32 byte_per_page; __le16 spare_bytes_per_page; __le32 data_bytes_per_ppage; __le16 spare_bytes_per_ppage; __le32 pages_per_block; __le32 blocks_per_lun; u8 lun_count; u8 addr_cycles; u8 bits_per_cell; __le16 bb_per_lun; __le16 block_endurance; u8 guaranteed_good_blocks; __le16 guaranteed_block_endurance; u8 programs_per_page; u8 ppage_attr; u8 ecc_bits; u8 interleaved_bits; u8 interleaved_ops; u8 reserved3[13]; /* electrical parameter block */ u8 io_pin_capacitance_max; __le16 sdr_timing_modes; __le16 program_cache_timing_mode; __le16 t_prog; __le16 t_bers; __le16 t_r; __le16 t_ccs; u8 nvddr_timing_modes; u8 nvddr2_timing_modes; u8 nvddr_nvddr2_features; __le16 clk_pin_capacitance_typ; __le16 io_pin_capacitance_typ; __le16 input_pin_capacitance_typ; u8 input_pin_capacitance_max; u8 driver_strength_support; __le16 t_int_r; __le16 t_adl; u8 reserved4[8]; /* vendor */ __le16 vendor_revision; u8 vendor[88]; __le16 crc; } __packed; #define ONFI_CRC_BASE 0x4F4E /* Extended ECC information Block Definition (since ONFI 2.1) */ struct onfi_ext_ecc_info { u8 ecc_bits; u8 codeword_size; __le16 bb_per_lun; __le16 block_endurance; u8 reserved[2]; } __packed; #define ONFI_SECTION_TYPE_0 0 /* Unused section. */ #define ONFI_SECTION_TYPE_1 1 /* for additional sections. */ #define ONFI_SECTION_TYPE_2 2 /* for ECC information. */ struct onfi_ext_section { u8 type; u8 length; } __packed; #define ONFI_EXT_SECTION_MAX 8 /* Extended Parameter Page Definition (since ONFI 2.1) */ struct onfi_ext_param_page { __le16 crc; u8 sig[4]; /* 'E' 'P' 'P' 'S' */ u8 reserved0[10]; struct onfi_ext_section sections[ONFI_EXT_SECTION_MAX]; /* * The actual size of the Extended Parameter Page is in * @ext_param_page_length of nand_onfi_params{}. * The following are the variable length sections. * So we do not add any fields below. Please see the ONFI spec. */ } __packed; /** * struct onfi_params - ONFI specific parameters that will be reused * @version: ONFI version (BCD encoded), 0 if ONFI is not supported * @tPROG: Page program time * @tBERS: Block erase time * @tR: Page read time * @tCCS: Change column setup time * @fast_tCAD: Command/Address/Data slow or fast delay (NV-DDR only) * @sdr_timing_modes: Supported asynchronous/SDR timing modes * @nvddr_timing_modes: Supported source synchronous/NV-DDR timing modes * @vendor_revision: Vendor specific revision number * @vendor: Vendor specific data */ struct onfi_params { int version; u16 tPROG; u16 tBERS; u16 tR; u16 tCCS; bool fast_tCAD; u16 sdr_timing_modes; u16 nvddr_timing_modes; u16 vendor_revision; u8 vendor[88]; }; #endif /* __LINUX_MTD_ONFI_H */
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