From 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 11:13:47 +0200 Subject: Adding upstream version 2.8.0+dfsg. Signed-off-by: Daniel Baumann --- include/drivers/nand.h | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 include/drivers/nand.h (limited to 'include/drivers/nand.h') diff --git a/include/drivers/nand.h b/include/drivers/nand.h new file mode 100644 index 0000000..5e5607c --- /dev/null +++ b/include/drivers/nand.h @@ -0,0 +1,67 @@ +/* + * Copyright (c) 2019-2022, STMicroelectronics - All Rights Reserved + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef DRIVERS_NAND_H +#define DRIVERS_NAND_H + +#include +#include + +#include + +#define PSEC_TO_MSEC(x) div_round_up((x), 1000000000ULL) + +struct ecc { + unsigned int mode; /* ECC mode NAND_ECC_MODE_{NONE|HW|ONDIE} */ + unsigned int size; /* Data byte per ECC step */ + unsigned int bytes; /* ECC bytes per step */ + unsigned int max_bit_corr; /* Max correctible bits per ECC steps */ +}; + +struct nand_device { + unsigned int block_size; + unsigned int page_size; + unsigned long long size; + unsigned int nb_planes; + unsigned int buswidth; + struct ecc ecc; + int (*mtd_block_is_bad)(unsigned int block); + int (*mtd_read_page)(struct nand_device *nand, unsigned int page, + uintptr_t buffer); +}; + +void plat_get_scratch_buffer(void **buffer_addr, size_t *buf_size); + +/* + * Read bytes from NAND device + * + * @offset: Byte offset to read from in device + * @buffer: [out] Bytes read from device + * @length: Number of bytes to read + * @length_read: [out] Number of bytes read from device + * Return: 0 on success, a negative errno on failure + */ +int nand_read(unsigned int offset, uintptr_t buffer, size_t length, + size_t *length_read); + +/* + * Look for an extra offset to be added in case of bad blocks + * + * @base: Base address of the area + * @offset: Byte offset to read from in device + * @extra_offset: [out] Extra offset to be added if bad blocks are found + * Return: 0 on success, a negative errno on failure + */ +int nand_seek_bb(uintptr_t base, unsigned int offset, size_t *extra_offset); + +/* + * Get NAND device instance + * + * Return: NAND device instance reference + */ +struct nand_device *get_nand_device(void); + +#endif /* DRIVERS_NAND_H */ -- cgit v1.2.3