745 lines
26 KiB
C
745 lines
26 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2005, Intec Automation Inc.
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* Copyright (C) 2014, Freescale Semiconductor, Inc.
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*/
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#ifndef __LINUX_MTD_SPI_NOR_INTERNAL_H
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#define __LINUX_MTD_SPI_NOR_INTERNAL_H
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#include "sfdp.h"
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#define SPI_NOR_MAX_ID_LEN 6
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/* Standard SPI NOR flash operations. */
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#define SPI_NOR_READID_OP(naddr, ndummy, buf, len) \
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SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_RDID, 0), \
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SPI_MEM_OP_ADDR(naddr, 0, 0), \
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SPI_MEM_OP_DUMMY(ndummy, 0), \
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SPI_MEM_OP_DATA_IN(len, buf, 0))
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#define SPI_NOR_WREN_OP \
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SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_WREN, 0), \
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SPI_MEM_OP_NO_ADDR, \
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SPI_MEM_OP_NO_DUMMY, \
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SPI_MEM_OP_NO_DATA)
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#define SPI_NOR_WRDI_OP \
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SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_WRDI, 0), \
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SPI_MEM_OP_NO_ADDR, \
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SPI_MEM_OP_NO_DUMMY, \
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SPI_MEM_OP_NO_DATA)
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#define SPI_NOR_RDSR_OP(buf) \
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SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_RDSR, 0), \
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SPI_MEM_OP_NO_ADDR, \
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SPI_MEM_OP_NO_DUMMY, \
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SPI_MEM_OP_DATA_IN(1, buf, 0))
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#define SPI_NOR_WRSR_OP(buf, len) \
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SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_WRSR, 0), \
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SPI_MEM_OP_NO_ADDR, \
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SPI_MEM_OP_NO_DUMMY, \
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SPI_MEM_OP_DATA_OUT(len, buf, 0))
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#define SPI_NOR_RDSR2_OP(buf) \
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SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_RDSR2, 0), \
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SPI_MEM_OP_NO_ADDR, \
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SPI_MEM_OP_NO_DUMMY, \
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SPI_MEM_OP_DATA_OUT(1, buf, 0))
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#define SPI_NOR_WRSR2_OP(buf) \
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SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_WRSR2, 0), \
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SPI_MEM_OP_NO_ADDR, \
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SPI_MEM_OP_NO_DUMMY, \
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SPI_MEM_OP_DATA_OUT(1, buf, 0))
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#define SPI_NOR_RDCR_OP(buf) \
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SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_RDCR, 0), \
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SPI_MEM_OP_NO_ADDR, \
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SPI_MEM_OP_NO_DUMMY, \
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SPI_MEM_OP_DATA_IN(1, buf, 0))
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#define SPI_NOR_EN4B_EX4B_OP(enable) \
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SPI_MEM_OP(SPI_MEM_OP_CMD(enable ? SPINOR_OP_EN4B : SPINOR_OP_EX4B, 0), \
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SPI_MEM_OP_NO_ADDR, \
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SPI_MEM_OP_NO_DUMMY, \
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SPI_MEM_OP_NO_DATA)
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#define SPI_NOR_BRWR_OP(buf) \
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SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_BRWR, 0), \
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SPI_MEM_OP_NO_ADDR, \
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SPI_MEM_OP_NO_DUMMY, \
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SPI_MEM_OP_DATA_OUT(1, buf, 0))
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#define SPI_NOR_GBULK_OP \
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SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_GBULK, 0), \
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SPI_MEM_OP_NO_ADDR, \
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SPI_MEM_OP_NO_DUMMY, \
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SPI_MEM_OP_NO_DATA)
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#define SPI_NOR_CHIP_ERASE_OP \
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SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_CHIP_ERASE, 0), \
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SPI_MEM_OP_NO_ADDR, \
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SPI_MEM_OP_NO_DUMMY, \
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SPI_MEM_OP_NO_DATA)
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#define SPI_NOR_SECTOR_ERASE_OP(opcode, addr_nbytes, addr) \
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SPI_MEM_OP(SPI_MEM_OP_CMD(opcode, 0), \
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SPI_MEM_OP_ADDR(addr_nbytes, addr, 0), \
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SPI_MEM_OP_NO_DUMMY, \
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SPI_MEM_OP_NO_DATA)
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#define SPI_NOR_READ_OP(opcode) \
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SPI_MEM_OP(SPI_MEM_OP_CMD(opcode, 0), \
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SPI_MEM_OP_ADDR(3, 0, 0), \
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SPI_MEM_OP_DUMMY(1, 0), \
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SPI_MEM_OP_DATA_IN(2, NULL, 0))
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#define SPI_NOR_PP_OP(opcode) \
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SPI_MEM_OP(SPI_MEM_OP_CMD(opcode, 0), \
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SPI_MEM_OP_ADDR(3, 0, 0), \
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SPI_MEM_OP_NO_DUMMY, \
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SPI_MEM_OP_DATA_OUT(2, NULL, 0))
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#define SPINOR_SRSTEN_OP \
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SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_SRSTEN, 0), \
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SPI_MEM_OP_NO_DUMMY, \
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SPI_MEM_OP_NO_ADDR, \
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SPI_MEM_OP_NO_DATA)
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#define SPINOR_SRST_OP \
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SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_SRST, 0), \
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SPI_MEM_OP_NO_DUMMY, \
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SPI_MEM_OP_NO_ADDR, \
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SPI_MEM_OP_NO_DATA)
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/* Keep these in sync with the list in debugfs.c */
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enum spi_nor_option_flags {
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SNOR_F_HAS_SR_TB = BIT(0),
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SNOR_F_NO_OP_CHIP_ERASE = BIT(1),
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SNOR_F_BROKEN_RESET = BIT(2),
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SNOR_F_4B_OPCODES = BIT(3),
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SNOR_F_HAS_4BAIT = BIT(4),
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SNOR_F_HAS_LOCK = BIT(5),
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SNOR_F_HAS_16BIT_SR = BIT(6),
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SNOR_F_NO_READ_CR = BIT(7),
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SNOR_F_HAS_SR_TB_BIT6 = BIT(8),
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SNOR_F_HAS_4BIT_BP = BIT(9),
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SNOR_F_HAS_SR_BP3_BIT6 = BIT(10),
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SNOR_F_IO_MODE_EN_VOLATILE = BIT(11),
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SNOR_F_SOFT_RESET = BIT(12),
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SNOR_F_SWP_IS_VOLATILE = BIT(13),
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SNOR_F_RWW = BIT(14),
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SNOR_F_ECC = BIT(15),
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};
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struct spi_nor_read_command {
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u8 num_mode_clocks;
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u8 num_wait_states;
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u8 opcode;
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enum spi_nor_protocol proto;
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};
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struct spi_nor_pp_command {
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u8 opcode;
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enum spi_nor_protocol proto;
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};
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enum spi_nor_read_command_index {
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SNOR_CMD_READ,
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SNOR_CMD_READ_FAST,
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SNOR_CMD_READ_1_1_1_DTR,
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/* Dual SPI */
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SNOR_CMD_READ_1_1_2,
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SNOR_CMD_READ_1_2_2,
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SNOR_CMD_READ_2_2_2,
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SNOR_CMD_READ_1_2_2_DTR,
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/* Quad SPI */
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SNOR_CMD_READ_1_1_4,
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SNOR_CMD_READ_1_4_4,
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SNOR_CMD_READ_4_4_4,
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SNOR_CMD_READ_1_4_4_DTR,
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/* Octal SPI */
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SNOR_CMD_READ_1_1_8,
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SNOR_CMD_READ_1_8_8,
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SNOR_CMD_READ_8_8_8,
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SNOR_CMD_READ_1_8_8_DTR,
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SNOR_CMD_READ_8_8_8_DTR,
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SNOR_CMD_READ_MAX
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};
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enum spi_nor_pp_command_index {
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SNOR_CMD_PP,
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/* Quad SPI */
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SNOR_CMD_PP_1_1_4,
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SNOR_CMD_PP_1_4_4,
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SNOR_CMD_PP_4_4_4,
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/* Octal SPI */
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SNOR_CMD_PP_1_1_8,
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SNOR_CMD_PP_1_8_8,
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SNOR_CMD_PP_8_8_8,
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SNOR_CMD_PP_8_8_8_DTR,
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SNOR_CMD_PP_MAX
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};
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/**
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* struct spi_nor_erase_type - Structure to describe a SPI NOR erase type
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* @size: the size of the sector/block erased by the erase type.
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* JEDEC JESD216B imposes erase sizes to be a power of 2.
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* @size_shift: @size is a power of 2, the shift is stored in
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* @size_shift.
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* @size_mask: the size mask based on @size_shift.
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* @opcode: the SPI command op code to erase the sector/block.
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* @idx: Erase Type index as sorted in the Basic Flash Parameter
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* Table. It will be used to synchronize the supported
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* Erase Types with the ones identified in the SFDP
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* optional tables.
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*/
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struct spi_nor_erase_type {
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u32 size;
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u32 size_shift;
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u32 size_mask;
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u8 opcode;
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u8 idx;
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};
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/**
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* struct spi_nor_erase_command - Used for non-uniform erases
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* The structure is used to describe a list of erase commands to be executed
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* once we validate that the erase can be performed. The elements in the list
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* are run-length encoded.
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* @list: for inclusion into the list of erase commands.
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* @count: how many times the same erase command should be
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* consecutively used.
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* @size: the size of the sector/block erased by the command.
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* @opcode: the SPI command op code to erase the sector/block.
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*/
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struct spi_nor_erase_command {
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struct list_head list;
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u32 count;
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u32 size;
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u8 opcode;
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};
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/**
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* struct spi_nor_erase_region - Structure to describe a SPI NOR erase region
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* @offset: the offset in the data array of erase region start.
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* LSB bits are used as a bitmask encoding flags to
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* determine if this region is overlaid, if this region is
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* the last in the SPI NOR flash memory and to indicate
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* all the supported erase commands inside this region.
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* The erase types are sorted in ascending order with the
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* smallest Erase Type size being at BIT(0).
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* @size: the size of the region in bytes.
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*/
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struct spi_nor_erase_region {
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u64 offset;
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u64 size;
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};
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#define SNOR_ERASE_TYPE_MAX 4
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#define SNOR_ERASE_TYPE_MASK GENMASK_ULL(SNOR_ERASE_TYPE_MAX - 1, 0)
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#define SNOR_LAST_REGION BIT(4)
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#define SNOR_OVERLAID_REGION BIT(5)
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#define SNOR_ERASE_FLAGS_MAX 6
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#define SNOR_ERASE_FLAGS_MASK GENMASK_ULL(SNOR_ERASE_FLAGS_MAX - 1, 0)
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/**
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* struct spi_nor_erase_map - Structure to describe the SPI NOR erase map
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* @regions: array of erase regions. The regions are consecutive in
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* address space. Walking through the regions is done
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* incrementally.
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* @uniform_region: a pre-allocated erase region for SPI NOR with a uniform
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* sector size (legacy implementation).
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* @erase_type: an array of erase types shared by all the regions.
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* The erase types are sorted in ascending order, with the
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* smallest Erase Type size being the first member in the
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* erase_type array.
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* @uniform_erase_type: bitmask encoding erase types that can erase the
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* entire memory. This member is completed at init by
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* uniform and non-uniform SPI NOR flash memories if they
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* support at least one erase type that can erase the
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* entire memory.
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*/
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struct spi_nor_erase_map {
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struct spi_nor_erase_region *regions;
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struct spi_nor_erase_region uniform_region;
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struct spi_nor_erase_type erase_type[SNOR_ERASE_TYPE_MAX];
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u8 uniform_erase_type;
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};
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/**
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* struct spi_nor_locking_ops - SPI NOR locking methods
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* @lock: lock a region of the SPI NOR.
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* @unlock: unlock a region of the SPI NOR.
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* @is_locked: check if a region of the SPI NOR is completely locked
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*/
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struct spi_nor_locking_ops {
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int (*lock)(struct spi_nor *nor, loff_t ofs, uint64_t len);
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int (*unlock)(struct spi_nor *nor, loff_t ofs, uint64_t len);
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int (*is_locked)(struct spi_nor *nor, loff_t ofs, uint64_t len);
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};
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/**
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* struct spi_nor_otp_organization - Structure to describe the SPI NOR OTP regions
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* @len: size of one OTP region in bytes.
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* @base: start address of the OTP area.
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* @offset: offset between consecutive OTP regions if there are more
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* than one.
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* @n_regions: number of individual OTP regions.
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*/
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struct spi_nor_otp_organization {
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size_t len;
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loff_t base;
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loff_t offset;
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unsigned int n_regions;
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};
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/**
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* struct spi_nor_otp_ops - SPI NOR OTP methods
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* @read: read from the SPI NOR OTP area.
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* @write: write to the SPI NOR OTP area.
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* @lock: lock an OTP region.
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* @erase: erase an OTP region.
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* @is_locked: check if an OTP region of the SPI NOR is locked.
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*/
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struct spi_nor_otp_ops {
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int (*read)(struct spi_nor *nor, loff_t addr, size_t len, u8 *buf);
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int (*write)(struct spi_nor *nor, loff_t addr, size_t len,
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const u8 *buf);
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int (*lock)(struct spi_nor *nor, unsigned int region);
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int (*erase)(struct spi_nor *nor, loff_t addr);
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int (*is_locked)(struct spi_nor *nor, unsigned int region);
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};
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/**
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* struct spi_nor_otp - SPI NOR OTP grouping structure
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* @org: OTP region organization
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* @ops: OTP access ops
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*/
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struct spi_nor_otp {
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const struct spi_nor_otp_organization *org;
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const struct spi_nor_otp_ops *ops;
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};
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/**
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* struct spi_nor_flash_parameter - SPI NOR flash parameters and settings.
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* Includes legacy flash parameters and settings that can be overwritten
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* by the spi_nor_fixups hooks, or dynamically when parsing the JESD216
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* Serial Flash Discoverable Parameters (SFDP) tables.
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*
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* @bank_size: the flash memory bank density in bytes.
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* @size: the total flash memory density in bytes.
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* @writesize Minimal writable flash unit size. Defaults to 1. Set to
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* ECC unit size for ECC-ed flashes.
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* @page_size: the page size of the SPI NOR flash memory.
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* @addr_nbytes: number of address bytes to send.
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* @addr_mode_nbytes: number of address bytes of current address mode. Useful
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* when the flash operates with 4B opcodes but needs the
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* internal address mode for opcodes that don't have a 4B
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* opcode correspondent.
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* @rdsr_dummy: dummy cycles needed for Read Status Register command
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* in octal DTR mode.
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* @rdsr_addr_nbytes: dummy address bytes needed for Read Status Register
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* command in octal DTR mode.
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* @n_dice: number of dice in the flash memory.
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* @vreg_offset: volatile register offset for each die.
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* @hwcaps: describes the read and page program hardware
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* capabilities.
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* @reads: read capabilities ordered by priority: the higher index
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* in the array, the higher priority.
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* @page_programs: page program capabilities ordered by priority: the
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* higher index in the array, the higher priority.
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* @erase_map: the erase map parsed from the SFDP Sector Map Parameter
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* Table.
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* @otp: SPI NOR OTP info.
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* @octal_dtr_enable: enables SPI NOR octal DTR mode.
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* @quad_enable: enables SPI NOR quad mode.
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* @set_4byte_addr_mode: puts the SPI NOR in 4 byte addressing mode.
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* @convert_addr: converts an absolute address into something the flash
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* will understand. Particularly useful when pagesize is
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* not a power-of-2.
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* @setup: (optional) configures the SPI NOR memory. Useful for
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* SPI NOR flashes that have peculiarities to the SPI NOR
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* standard e.g. different opcodes, specific address
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* calculation, page size, etc.
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* @ready: (optional) flashes might use a different mechanism
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* than reading the status register to indicate they
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* are ready for a new command
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* @locking_ops: SPI NOR locking methods.
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* @priv: flash's private data.
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*/
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struct spi_nor_flash_parameter {
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u64 bank_size;
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u64 size;
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u32 writesize;
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u32 page_size;
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u8 addr_nbytes;
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u8 addr_mode_nbytes;
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u8 rdsr_dummy;
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u8 rdsr_addr_nbytes;
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u8 n_dice;
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u32 *vreg_offset;
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struct spi_nor_hwcaps hwcaps;
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struct spi_nor_read_command reads[SNOR_CMD_READ_MAX];
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struct spi_nor_pp_command page_programs[SNOR_CMD_PP_MAX];
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struct spi_nor_erase_map erase_map;
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struct spi_nor_otp otp;
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int (*octal_dtr_enable)(struct spi_nor *nor, bool enable);
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int (*quad_enable)(struct spi_nor *nor);
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int (*set_4byte_addr_mode)(struct spi_nor *nor, bool enable);
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u32 (*convert_addr)(struct spi_nor *nor, u32 addr);
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int (*setup)(struct spi_nor *nor, const struct spi_nor_hwcaps *hwcaps);
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int (*ready)(struct spi_nor *nor);
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const struct spi_nor_locking_ops *locking_ops;
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void *priv;
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};
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/**
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* struct spi_nor_fixups - SPI NOR fixup hooks
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* @default_init: called after default flash parameters init. Used to tweak
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* flash parameters when information provided by the flash_info
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* table is incomplete or wrong.
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* @post_bfpt: called after the BFPT table has been parsed
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* @post_sfdp: called after SFDP has been parsed (is also called for SPI NORs
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* that do not support RDSFDP). Typically used to tweak various
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* parameters that could not be extracted by other means (i.e.
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* when information provided by the SFDP/flash_info tables are
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* incomplete or wrong).
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* @late_init: used to initialize flash parameters that are not declared in the
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* JESD216 SFDP standard, or where SFDP tables not defined at all.
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* Will replace the default_init() hook.
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*
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* Those hooks can be used to tweak the SPI NOR configuration when the SFDP
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* table is broken or not available.
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*/
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struct spi_nor_fixups {
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void (*default_init)(struct spi_nor *nor);
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int (*post_bfpt)(struct spi_nor *nor,
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const struct sfdp_parameter_header *bfpt_header,
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const struct sfdp_bfpt *bfpt);
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int (*post_sfdp)(struct spi_nor *nor);
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int (*late_init)(struct spi_nor *nor);
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};
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/**
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* struct flash_info - SPI NOR flash_info entry.
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* @name: the name of the flash.
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* @id: the flash's ID bytes. The first three bytes are the
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* JEDIC ID. JEDEC ID zero means "no ID" (mostly older chips).
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* @id_len: the number of bytes of ID.
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* @sector_size: the size listed here is what works with SPINOR_OP_SE, which
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* isn't necessarily called a "sector" by the vendor.
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* @n_sectors: the number of sectors.
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* @n_banks: the number of banks.
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* @page_size: the flash's page size.
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* @addr_nbytes: number of address bytes to send.
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*
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* @parse_sfdp: true when flash supports SFDP tables. The false value has no
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* meaning. If one wants to skip the SFDP tables, one should
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* instead use the SPI_NOR_SKIP_SFDP sfdp_flag.
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* @flags: flags that indicate support that is not defined by the
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* JESD216 standard in its SFDP tables. Flag meanings:
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* SPI_NOR_HAS_LOCK: flash supports lock/unlock via SR
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* SPI_NOR_HAS_TB: flash SR has Top/Bottom (TB) protect bit. Must be
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* used with SPI_NOR_HAS_LOCK.
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* SPI_NOR_TB_SR_BIT6: Top/Bottom (TB) is bit 6 of status register.
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* Must be used with SPI_NOR_HAS_TB.
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* SPI_NOR_4BIT_BP: flash SR has 4 bit fields (BP0-3) for block
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* protection.
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* SPI_NOR_BP3_SR_BIT6: BP3 is bit 6 of status register. Must be used with
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* SPI_NOR_4BIT_BP.
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* SPI_NOR_SWP_IS_VOLATILE: flash has volatile software write protection bits.
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* Usually these will power-up in a write-protected
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* state.
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* SPI_NOR_NO_ERASE: no erase command needed.
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* NO_CHIP_ERASE: chip does not support chip erase.
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* SPI_NOR_NO_FR: can't do fastread.
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* SPI_NOR_QUAD_PP: flash supports Quad Input Page Program.
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* SPI_NOR_RWW: flash supports reads while write.
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*
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* @no_sfdp_flags: flags that indicate support that can be discovered via SFDP.
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* Used when SFDP tables are not defined in the flash. These
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* flags are used together with the SPI_NOR_SKIP_SFDP flag.
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* SPI_NOR_SKIP_SFDP: skip parsing of SFDP tables.
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* SECT_4K: SPINOR_OP_BE_4K works uniformly.
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* SPI_NOR_DUAL_READ: flash supports Dual Read.
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* SPI_NOR_QUAD_READ: flash supports Quad Read.
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* SPI_NOR_OCTAL_READ: flash supports Octal Read.
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* SPI_NOR_OCTAL_DTR_READ: flash supports octal DTR Read.
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* SPI_NOR_OCTAL_DTR_PP: flash supports Octal DTR Page Program.
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*
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* @fixup_flags: flags that indicate support that can be discovered via SFDP
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* ideally, but can not be discovered for this particular flash
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* because the SFDP table that indicates this support is not
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* defined by the flash. In case the table for this support is
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* defined but has wrong values, one should instead use a
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* post_sfdp() hook to set the SNOR_F equivalent flag.
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*
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* SPI_NOR_4B_OPCODES: use dedicated 4byte address op codes to support
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* memory size above 128Mib.
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* SPI_NOR_IO_MODE_EN_VOLATILE: flash enables the best available I/O mode
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* via a volatile bit.
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* @mfr_flags: manufacturer private flags. Used in the manufacturer fixup
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* hooks to differentiate support between flashes of the same
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* manufacturer.
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* @otp_org: flash's OTP organization.
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* @fixups: part specific fixup hooks.
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*/
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struct flash_info {
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char *name;
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u8 id[SPI_NOR_MAX_ID_LEN];
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u8 id_len;
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unsigned sector_size;
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u16 n_sectors;
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u16 page_size;
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u8 n_banks;
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u8 addr_nbytes;
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bool parse_sfdp;
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u16 flags;
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#define SPI_NOR_HAS_LOCK BIT(0)
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#define SPI_NOR_HAS_TB BIT(1)
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#define SPI_NOR_TB_SR_BIT6 BIT(2)
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#define SPI_NOR_4BIT_BP BIT(3)
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#define SPI_NOR_BP3_SR_BIT6 BIT(4)
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#define SPI_NOR_SWP_IS_VOLATILE BIT(5)
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#define SPI_NOR_NO_ERASE BIT(6)
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#define NO_CHIP_ERASE BIT(7)
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#define SPI_NOR_NO_FR BIT(8)
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#define SPI_NOR_QUAD_PP BIT(9)
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#define SPI_NOR_RWW BIT(10)
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u8 no_sfdp_flags;
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#define SPI_NOR_SKIP_SFDP BIT(0)
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#define SECT_4K BIT(1)
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#define SPI_NOR_DUAL_READ BIT(3)
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#define SPI_NOR_QUAD_READ BIT(4)
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#define SPI_NOR_OCTAL_READ BIT(5)
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#define SPI_NOR_OCTAL_DTR_READ BIT(6)
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#define SPI_NOR_OCTAL_DTR_PP BIT(7)
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u8 fixup_flags;
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#define SPI_NOR_4B_OPCODES BIT(0)
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#define SPI_NOR_IO_MODE_EN_VOLATILE BIT(1)
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u8 mfr_flags;
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const struct spi_nor_otp_organization otp_org;
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const struct spi_nor_fixups *fixups;
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};
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#define SPI_NOR_ID_2ITEMS(_id) ((_id) >> 8) & 0xff, (_id) & 0xff
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#define SPI_NOR_ID_3ITEMS(_id) ((_id) >> 16) & 0xff, SPI_NOR_ID_2ITEMS(_id)
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#define SPI_NOR_ID(_jedec_id, _ext_id) \
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.id = { SPI_NOR_ID_3ITEMS(_jedec_id), SPI_NOR_ID_2ITEMS(_ext_id) }, \
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.id_len = !(_jedec_id) ? 0 : (3 + ((_ext_id) ? 2 : 0))
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#define SPI_NOR_ID6(_jedec_id, _ext_id) \
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.id = { SPI_NOR_ID_3ITEMS(_jedec_id), SPI_NOR_ID_3ITEMS(_ext_id) }, \
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.id_len = 6
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#define SPI_NOR_GEOMETRY(_sector_size, _n_sectors, _n_banks) \
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.sector_size = (_sector_size), \
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.n_sectors = (_n_sectors), \
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.page_size = 256, \
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.n_banks = (_n_banks)
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/* Used when the "_ext_id" is two bytes at most */
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#define INFO(_jedec_id, _ext_id, _sector_size, _n_sectors) \
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SPI_NOR_ID((_jedec_id), (_ext_id)), \
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SPI_NOR_GEOMETRY((_sector_size), (_n_sectors), 1),
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#define INFOB(_jedec_id, _ext_id, _sector_size, _n_sectors, _n_banks) \
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SPI_NOR_ID((_jedec_id), (_ext_id)), \
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SPI_NOR_GEOMETRY((_sector_size), (_n_sectors), (_n_banks)),
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#define INFO6(_jedec_id, _ext_id, _sector_size, _n_sectors) \
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SPI_NOR_ID6((_jedec_id), (_ext_id)), \
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SPI_NOR_GEOMETRY((_sector_size), (_n_sectors), 1),
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#define CAT25_INFO(_sector_size, _n_sectors, _page_size, _addr_nbytes) \
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.sector_size = (_sector_size), \
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.n_sectors = (_n_sectors), \
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.page_size = (_page_size), \
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.n_banks = 1, \
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.addr_nbytes = (_addr_nbytes), \
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.flags = SPI_NOR_NO_ERASE | SPI_NOR_NO_FR, \
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#define OTP_INFO(_len, _n_regions, _base, _offset) \
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.otp_org = { \
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.len = (_len), \
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.base = (_base), \
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.offset = (_offset), \
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.n_regions = (_n_regions), \
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},
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#define PARSE_SFDP \
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.parse_sfdp = true, \
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#define FLAGS(_flags) \
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.flags = (_flags), \
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#define NO_SFDP_FLAGS(_no_sfdp_flags) \
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.no_sfdp_flags = (_no_sfdp_flags), \
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#define FIXUP_FLAGS(_fixup_flags) \
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.fixup_flags = (_fixup_flags), \
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#define MFR_FLAGS(_mfr_flags) \
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.mfr_flags = (_mfr_flags), \
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|
/**
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|
* struct spi_nor_manufacturer - SPI NOR manufacturer object
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|
* @name: manufacturer name
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|
* @parts: array of parts supported by this manufacturer
|
|
* @nparts: number of entries in the parts array
|
|
* @fixups: hooks called at various points in time during spi_nor_scan()
|
|
*/
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|
struct spi_nor_manufacturer {
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|
const char *name;
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|
const struct flash_info *parts;
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|
unsigned int nparts;
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|
const struct spi_nor_fixups *fixups;
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|
};
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|
|
/**
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|
* struct sfdp - SFDP data
|
|
* @num_dwords: number of entries in the dwords array
|
|
* @dwords: array of double words of the SFDP data
|
|
*/
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|
struct sfdp {
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|
size_t num_dwords;
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|
u32 *dwords;
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|
};
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|
/* Manufacturer drivers. */
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|
extern const struct spi_nor_manufacturer spi_nor_atmel;
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|
extern const struct spi_nor_manufacturer spi_nor_catalyst;
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|
extern const struct spi_nor_manufacturer spi_nor_eon;
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|
extern const struct spi_nor_manufacturer spi_nor_esmt;
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|
extern const struct spi_nor_manufacturer spi_nor_everspin;
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|
extern const struct spi_nor_manufacturer spi_nor_fujitsu;
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|
extern const struct spi_nor_manufacturer spi_nor_gigadevice;
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|
extern const struct spi_nor_manufacturer spi_nor_intel;
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|
extern const struct spi_nor_manufacturer spi_nor_issi;
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|
extern const struct spi_nor_manufacturer spi_nor_macronix;
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|
extern const struct spi_nor_manufacturer spi_nor_micron;
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|
extern const struct spi_nor_manufacturer spi_nor_st;
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|
extern const struct spi_nor_manufacturer spi_nor_spansion;
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|
extern const struct spi_nor_manufacturer spi_nor_sst;
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|
extern const struct spi_nor_manufacturer spi_nor_winbond;
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|
extern const struct spi_nor_manufacturer spi_nor_xilinx;
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|
extern const struct spi_nor_manufacturer spi_nor_xmc;
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|
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|
extern const struct attribute_group *spi_nor_sysfs_groups[];
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|
|
|
void spi_nor_spimem_setup_op(const struct spi_nor *nor,
|
|
struct spi_mem_op *op,
|
|
const enum spi_nor_protocol proto);
|
|
int spi_nor_write_enable(struct spi_nor *nor);
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|
int spi_nor_write_disable(struct spi_nor *nor);
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|
int spi_nor_set_4byte_addr_mode_en4b_ex4b(struct spi_nor *nor, bool enable);
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|
int spi_nor_set_4byte_addr_mode_wren_en4b_ex4b(struct spi_nor *nor,
|
|
bool enable);
|
|
int spi_nor_set_4byte_addr_mode_brwr(struct spi_nor *nor, bool enable);
|
|
int spi_nor_set_4byte_addr_mode(struct spi_nor *nor, bool enable);
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|
int spi_nor_wait_till_ready(struct spi_nor *nor);
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|
int spi_nor_global_block_unlock(struct spi_nor *nor);
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|
int spi_nor_prep_and_lock(struct spi_nor *nor);
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|
void spi_nor_unlock_and_unprep(struct spi_nor *nor);
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|
int spi_nor_sr1_bit6_quad_enable(struct spi_nor *nor);
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|
int spi_nor_sr2_bit1_quad_enable(struct spi_nor *nor);
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|
int spi_nor_sr2_bit7_quad_enable(struct spi_nor *nor);
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|
int spi_nor_read_id(struct spi_nor *nor, u8 naddr, u8 ndummy, u8 *id,
|
|
enum spi_nor_protocol reg_proto);
|
|
int spi_nor_read_sr(struct spi_nor *nor, u8 *sr);
|
|
int spi_nor_sr_ready(struct spi_nor *nor);
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|
int spi_nor_read_cr(struct spi_nor *nor, u8 *cr);
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|
int spi_nor_write_sr(struct spi_nor *nor, const u8 *sr, size_t len);
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|
int spi_nor_write_sr_and_check(struct spi_nor *nor, u8 sr1);
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|
int spi_nor_write_16bit_cr_and_check(struct spi_nor *nor, u8 cr);
|
|
|
|
ssize_t spi_nor_read_data(struct spi_nor *nor, loff_t from, size_t len,
|
|
u8 *buf);
|
|
ssize_t spi_nor_write_data(struct spi_nor *nor, loff_t to, size_t len,
|
|
const u8 *buf);
|
|
int spi_nor_read_any_reg(struct spi_nor *nor, struct spi_mem_op *op,
|
|
enum spi_nor_protocol proto);
|
|
int spi_nor_write_any_volatile_reg(struct spi_nor *nor, struct spi_mem_op *op,
|
|
enum spi_nor_protocol proto);
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|
int spi_nor_erase_sector(struct spi_nor *nor, u32 addr);
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|
|
|
int spi_nor_otp_read_secr(struct spi_nor *nor, loff_t addr, size_t len, u8 *buf);
|
|
int spi_nor_otp_write_secr(struct spi_nor *nor, loff_t addr, size_t len,
|
|
const u8 *buf);
|
|
int spi_nor_otp_erase_secr(struct spi_nor *nor, loff_t addr);
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|
int spi_nor_otp_lock_sr2(struct spi_nor *nor, unsigned int region);
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|
int spi_nor_otp_is_locked_sr2(struct spi_nor *nor, unsigned int region);
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|
|
|
int spi_nor_hwcaps_read2cmd(u32 hwcaps);
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|
int spi_nor_hwcaps_pp2cmd(u32 hwcaps);
|
|
u8 spi_nor_convert_3to4_read(u8 opcode);
|
|
void spi_nor_set_read_settings(struct spi_nor_read_command *read,
|
|
u8 num_mode_clocks,
|
|
u8 num_wait_states,
|
|
u8 opcode,
|
|
enum spi_nor_protocol proto);
|
|
void spi_nor_set_pp_settings(struct spi_nor_pp_command *pp, u8 opcode,
|
|
enum spi_nor_protocol proto);
|
|
|
|
void spi_nor_set_erase_type(struct spi_nor_erase_type *erase, u32 size,
|
|
u8 opcode);
|
|
void spi_nor_mask_erase_type(struct spi_nor_erase_type *erase);
|
|
struct spi_nor_erase_region *
|
|
spi_nor_region_next(struct spi_nor_erase_region *region);
|
|
void spi_nor_init_uniform_erase_map(struct spi_nor_erase_map *map,
|
|
u8 erase_mask, u64 flash_size);
|
|
|
|
int spi_nor_post_bfpt_fixups(struct spi_nor *nor,
|
|
const struct sfdp_parameter_header *bfpt_header,
|
|
const struct sfdp_bfpt *bfpt);
|
|
|
|
void spi_nor_init_default_locking_ops(struct spi_nor *nor);
|
|
void spi_nor_try_unlock_all(struct spi_nor *nor);
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|
void spi_nor_set_mtd_locking_ops(struct spi_nor *nor);
|
|
void spi_nor_set_mtd_otp_ops(struct spi_nor *nor);
|
|
|
|
int spi_nor_controller_ops_read_reg(struct spi_nor *nor, u8 opcode,
|
|
u8 *buf, size_t len);
|
|
int spi_nor_controller_ops_write_reg(struct spi_nor *nor, u8 opcode,
|
|
const u8 *buf, size_t len);
|
|
|
|
int spi_nor_check_sfdp_signature(struct spi_nor *nor);
|
|
int spi_nor_parse_sfdp(struct spi_nor *nor);
|
|
|
|
static inline struct spi_nor *mtd_to_spi_nor(struct mtd_info *mtd)
|
|
{
|
|
return container_of(mtd, struct spi_nor, mtd);
|
|
}
|
|
|
|
#ifdef CONFIG_DEBUG_FS
|
|
void spi_nor_debugfs_register(struct spi_nor *nor);
|
|
void spi_nor_debugfs_shutdown(void);
|
|
#else
|
|
static inline void spi_nor_debugfs_register(struct spi_nor *nor) {}
|
|
static inline void spi_nor_debugfs_shutdown(void) {}
|
|
#endif
|
|
|
|
#endif /* __LINUX_MTD_SPI_NOR_INTERNAL_H */
|