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53 lines
1.4 KiB
53 lines
1.4 KiB
/*
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* Copyright (c) 2019-2023, STMicroelectronics - All Rights Reserved
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef DRIVERS_SPI_NAND_H
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#define DRIVERS_SPI_NAND_H
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#include <drivers/nand.h>
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#include <drivers/spi_mem.h>
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#define SPI_NAND_OP_GET_FEATURE 0x0FU
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#define SPI_NAND_OP_SET_FEATURE 0x1FU
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#define SPI_NAND_OP_READ_ID 0x9FU
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#define SPI_NAND_OP_LOAD_PAGE 0x13U
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#define SPI_NAND_OP_RESET 0xFFU
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#define SPI_NAND_OP_READ_FROM_CACHE 0x03U
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#define SPI_NAND_OP_READ_FROM_CACHE_2X 0x3BU
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#define SPI_NAND_OP_READ_FROM_CACHE_4X 0x6BU
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/* Configuration register */
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#define SPI_NAND_REG_CFG 0xB0U
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#define SPI_NAND_CFG_ECC_EN BIT(4)
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#define SPI_NAND_CFG_QE BIT(0)
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/* Status register */
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#define SPI_NAND_REG_STATUS 0xC0U
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#define SPI_NAND_STATUS_BUSY BIT(0)
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#define SPI_NAND_STATUS_ECC_UNCOR BIT(5)
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/* Flags for specific configuration */
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#define SPI_NAND_HAS_QE_BIT BIT(0)
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struct spinand_device {
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struct nand_device *nand_dev;
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struct spi_mem_op spi_read_cache_op;
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uint32_t flags;
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uint8_t cfg_cache; /* Cached value of SPI NAND device register CFG */
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};
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int spi_nand_init(unsigned long long *size, unsigned int *erase_size);
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/*
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* Platform can implement this to override default SPI-NAND instance
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* configuration.
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*
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* @device: target SPI-NAND instance.
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* Return 0 on success, negative value otherwise.
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*/
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int plat_get_spi_nand_data(struct spinand_device *device);
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#endif /* DRIVERS_SPI_NAND_H */
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