179 lines
4.4 KiB
C
179 lines
4.4 KiB
C
/* 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 ONFI related definitions
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*/
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#ifndef __LINUX_MTD_ONFI_H
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#define __LINUX_MTD_ONFI_H
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#include <linux/types.h>
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/* ONFI version bits */
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#define ONFI_VERSION_1_0 BIT(1)
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#define ONFI_VERSION_2_0 BIT(2)
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#define ONFI_VERSION_2_1 BIT(3)
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#define ONFI_VERSION_2_2 BIT(4)
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#define ONFI_VERSION_2_3 BIT(5)
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#define ONFI_VERSION_3_0 BIT(6)
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#define ONFI_VERSION_3_1 BIT(7)
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#define ONFI_VERSION_3_2 BIT(8)
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#define ONFI_VERSION_4_0 BIT(9)
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/* ONFI features */
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#define ONFI_FEATURE_16_BIT_BUS (1 << 0)
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#define ONFI_FEATURE_EXT_PARAM_PAGE (1 << 7)
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/* ONFI timing mode, used in both asynchronous and synchronous mode */
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#define ONFI_TIMING_MODE_0 (1 << 0)
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#define ONFI_TIMING_MODE_1 (1 << 1)
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#define ONFI_TIMING_MODE_2 (1 << 2)
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#define ONFI_TIMING_MODE_3 (1 << 3)
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#define ONFI_TIMING_MODE_4 (1 << 4)
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#define ONFI_TIMING_MODE_5 (1 << 5)
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#define ONFI_TIMING_MODE_UNKNOWN (1 << 6)
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/* ONFI feature number/address */
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#define ONFI_FEATURE_NUMBER 256
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#define ONFI_FEATURE_ADDR_TIMING_MODE 0x1
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/* Vendor-specific feature address (Micron) */
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#define ONFI_FEATURE_ADDR_READ_RETRY 0x89
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#define ONFI_FEATURE_ON_DIE_ECC 0x90
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#define ONFI_FEATURE_ON_DIE_ECC_EN BIT(3)
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/* ONFI subfeature parameters length */
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#define ONFI_SUBFEATURE_PARAM_LEN 4
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/* ONFI optional commands SET/GET FEATURES supported? */
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#define ONFI_OPT_CMD_SET_GET_FEATURES (1 << 2)
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struct nand_onfi_params {
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/* rev info and features block */
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/* 'O' 'N' 'F' 'I' */
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u8 sig[4];
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__le16 revision;
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__le16 features;
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__le16 opt_cmd;
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u8 reserved0[2];
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__le16 ext_param_page_length; /* since ONFI 2.1 */
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u8 num_of_param_pages; /* since ONFI 2.1 */
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u8 reserved1[17];
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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;
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__le16 date_code;
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u8 reserved2[13];
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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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__le32 data_bytes_per_ppage;
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__le16 spare_bytes_per_ppage;
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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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__le16 bb_per_lun;
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__le16 block_endurance;
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u8 guaranteed_good_blocks;
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__le16 guaranteed_block_endurance;
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u8 programs_per_page;
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u8 ppage_attr;
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u8 ecc_bits;
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u8 interleaved_bits;
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u8 interleaved_ops;
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u8 reserved3[13];
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/* electrical parameter block */
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u8 io_pin_capacitance_max;
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__le16 async_timing_mode;
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__le16 program_cache_timing_mode;
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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_ccs;
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__le16 src_sync_timing_mode;
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u8 src_ssync_features;
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__le16 clk_pin_capacitance_typ;
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__le16 io_pin_capacitance_typ;
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__le16 input_pin_capacitance_typ;
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u8 input_pin_capacitance_max;
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u8 driver_strength_support;
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__le16 t_int_r;
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__le16 t_adl;
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u8 reserved4[8];
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/* vendor */
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__le16 vendor_revision;
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u8 vendor[88];
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__le16 crc;
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} __packed;
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#define ONFI_CRC_BASE 0x4F4E
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/* Extended ECC information Block Definition (since ONFI 2.1) */
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struct onfi_ext_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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#define ONFI_SECTION_TYPE_0 0 /* Unused section. */
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#define ONFI_SECTION_TYPE_1 1 /* for additional sections. */
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#define ONFI_SECTION_TYPE_2 2 /* for ECC information. */
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struct onfi_ext_section {
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u8 type;
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u8 length;
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} __packed;
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#define ONFI_EXT_SECTION_MAX 8
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/* Extended Parameter Page Definition (since ONFI 2.1) */
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struct onfi_ext_param_page {
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__le16 crc;
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u8 sig[4]; /* 'E' 'P' 'P' 'S' */
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u8 reserved0[10];
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struct onfi_ext_section sections[ONFI_EXT_SECTION_MAX];
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/*
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* The actual size of the Extended Parameter Page is in
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* @ext_param_page_length of nand_onfi_params{}.
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* The following are the variable length sections.
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* So we do not add any fields below. Please see the ONFI spec.
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*/
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} __packed;
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/**
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* struct onfi_params - ONFI specific parameters that will be reused
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* @version: ONFI version (BCD encoded), 0 if ONFI is not supported
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* @tPROG: Page program time
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* @tBERS: Block erase time
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* @tR: Page read time
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* @tCCS: Change column setup time
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* @async_timing_mode: Supported asynchronous timing mode
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* @vendor_revision: Vendor specific revision number
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* @vendor: Vendor specific data
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*/
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struct onfi_params {
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int version;
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u16 tPROG;
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u16 tBERS;
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u16 tR;
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u16 tCCS;
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u16 async_timing_mode;
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u16 vendor_revision;
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u8 vendor[88];
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};
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#endif /* __LINUX_MTD_ONFI_H */
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