162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0-only
262306a36Sopenharmony_ci/*
362306a36Sopenharmony_ci *  Copyright (C) 2002 Thomas Gleixner (tglx@linutronix.de)
462306a36Sopenharmony_ci */
562306a36Sopenharmony_ci
662306a36Sopenharmony_ci#include <linux/sizes.h>
762306a36Sopenharmony_ci
862306a36Sopenharmony_ci#include "internals.h"
962306a36Sopenharmony_ci
1062306a36Sopenharmony_ci#define LP_OPTIONS 0
1162306a36Sopenharmony_ci#define LP_OPTIONS16 (LP_OPTIONS | NAND_BUSWIDTH_16)
1262306a36Sopenharmony_ci
1362306a36Sopenharmony_ci#define SP_OPTIONS NAND_NEED_READRDY
1462306a36Sopenharmony_ci#define SP_OPTIONS16 (SP_OPTIONS | NAND_BUSWIDTH_16)
1562306a36Sopenharmony_ci
1662306a36Sopenharmony_ci/*
1762306a36Sopenharmony_ci * The chip ID list:
1862306a36Sopenharmony_ci *    name, device ID, page size, chip size in MiB, eraseblock size, options
1962306a36Sopenharmony_ci *
2062306a36Sopenharmony_ci * If page size and eraseblock size are 0, the sizes are taken from the
2162306a36Sopenharmony_ci * extended chip ID.
2262306a36Sopenharmony_ci */
2362306a36Sopenharmony_cistruct nand_flash_dev nand_flash_ids[] = {
2462306a36Sopenharmony_ci	/*
2562306a36Sopenharmony_ci	 * Some incompatible NAND chips share device ID's and so must be
2662306a36Sopenharmony_ci	 * listed by full ID. We list them first so that we can easily identify
2762306a36Sopenharmony_ci	 * the most specific match.
2862306a36Sopenharmony_ci	 */
2962306a36Sopenharmony_ci	{"TC58NVG0S3E 1G 3.3V 8-bit",
3062306a36Sopenharmony_ci		{ .id = {0x98, 0xd1, 0x90, 0x15, 0x76, 0x14, 0x01, 0x00} },
3162306a36Sopenharmony_ci		  SZ_2K, SZ_128, SZ_128K, 0, 8, 64, NAND_ECC_INFO(1, SZ_512), },
3262306a36Sopenharmony_ci	{"TC58NVG2S0F 4G 3.3V 8-bit",
3362306a36Sopenharmony_ci		{ .id = {0x98, 0xdc, 0x90, 0x26, 0x76, 0x15, 0x01, 0x08} },
3462306a36Sopenharmony_ci		  SZ_4K, SZ_512, SZ_256K, 0, 8, 224, NAND_ECC_INFO(4, SZ_512) },
3562306a36Sopenharmony_ci	{"TC58NVG2S0H 4G 3.3V 8-bit",
3662306a36Sopenharmony_ci		{ .id = {0x98, 0xdc, 0x90, 0x26, 0x76, 0x16, 0x08, 0x00} },
3762306a36Sopenharmony_ci		  SZ_4K, SZ_512, SZ_256K, 0, 8, 256, NAND_ECC_INFO(8, SZ_512) },
3862306a36Sopenharmony_ci	{"TC58NVG3S0F 8G 3.3V 8-bit",
3962306a36Sopenharmony_ci		{ .id = {0x98, 0xd3, 0x90, 0x26, 0x76, 0x15, 0x02, 0x08} },
4062306a36Sopenharmony_ci		  SZ_4K, SZ_1K, SZ_256K, 0, 8, 232, NAND_ECC_INFO(4, SZ_512) },
4162306a36Sopenharmony_ci	{"TC58NVG5D2 32G 3.3V 8-bit",
4262306a36Sopenharmony_ci		{ .id = {0x98, 0xd7, 0x94, 0x32, 0x76, 0x56, 0x09, 0x00} },
4362306a36Sopenharmony_ci		  SZ_8K, SZ_4K, SZ_1M, 0, 8, 640, NAND_ECC_INFO(40, SZ_1K) },
4462306a36Sopenharmony_ci	{"TC58NVG6D2 64G 3.3V 8-bit",
4562306a36Sopenharmony_ci		{ .id = {0x98, 0xde, 0x94, 0x82, 0x76, 0x56, 0x04, 0x20} },
4662306a36Sopenharmony_ci		  SZ_8K, SZ_8K, SZ_2M, 0, 8, 640, NAND_ECC_INFO(40, SZ_1K) },
4762306a36Sopenharmony_ci	{"SDTNQGAMA 64G 3.3V 8-bit",
4862306a36Sopenharmony_ci		{ .id = {0x45, 0xde, 0x94, 0x93, 0x76, 0x57} },
4962306a36Sopenharmony_ci		  SZ_16K, SZ_8K, SZ_4M, 0, 6, 1280, NAND_ECC_INFO(40, SZ_1K) },
5062306a36Sopenharmony_ci	{"SDTNRGAMA 64G 3.3V 8-bit",
5162306a36Sopenharmony_ci		{ .id = {0x45, 0xde, 0x94, 0x93, 0x76, 0x50} },
5262306a36Sopenharmony_ci		  SZ_16K, SZ_8K, SZ_4M, 0, 6, 1280, NAND_ECC_INFO(40, SZ_1K) },
5362306a36Sopenharmony_ci	{"H27UCG8T2ATR-BC 64G 3.3V 8-bit",
5462306a36Sopenharmony_ci		{ .id = {0xad, 0xde, 0x94, 0xda, 0x74, 0xc4} },
5562306a36Sopenharmony_ci		  SZ_8K, SZ_8K, SZ_2M, NAND_NEED_SCRAMBLING, 6, 640,
5662306a36Sopenharmony_ci		  NAND_ECC_INFO(40, SZ_1K) },
5762306a36Sopenharmony_ci	{"H27UCG8T2ETR-BC 64G 3.3V 8-bit",
5862306a36Sopenharmony_ci		{ .id = {0xad, 0xde, 0x14, 0xa7, 0x42, 0x4a} },
5962306a36Sopenharmony_ci		  SZ_16K, SZ_8K, SZ_4M, NAND_NEED_SCRAMBLING, 6, 1664,
6062306a36Sopenharmony_ci		  NAND_ECC_INFO(40, SZ_1K) },
6162306a36Sopenharmony_ci	{"TH58NVG2S3HBAI4 4G 3.3V 8-bit",
6262306a36Sopenharmony_ci		{ .id = {0x98, 0xdc, 0x91, 0x15, 0x76} },
6362306a36Sopenharmony_ci		  SZ_2K, SZ_512, SZ_128K, 0, 5, 128, NAND_ECC_INFO(8, SZ_512) },
6462306a36Sopenharmony_ci	{"TH58NVG3S0HBAI4 8G 3.3V 8-bit",
6562306a36Sopenharmony_ci		{ .id = {0x98, 0xd3, 0x91, 0x26, 0x76} },
6662306a36Sopenharmony_ci		  SZ_4K, SZ_1K, SZ_256K, 0, 5, 256, NAND_ECC_INFO(8, SZ_512)},
6762306a36Sopenharmony_ci
6862306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 4MiB 5V 8-bit",   0x6B, 4, SZ_8K, SP_OPTIONS),
6962306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 4MiB 3,3V 8-bit", 0xE3, 4, SZ_8K, SP_OPTIONS),
7062306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 4MiB 3,3V 8-bit", 0xE5, 4, SZ_8K, SP_OPTIONS),
7162306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 8MiB 3,3V 8-bit", 0xD6, 8, SZ_8K, SP_OPTIONS),
7262306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 8MiB 3,3V 8-bit", 0xE6, 8, SZ_8K, SP_OPTIONS),
7362306a36Sopenharmony_ci
7462306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 16MiB 1,8V 8-bit",  0x33, 16, SZ_16K, SP_OPTIONS),
7562306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 16MiB 3,3V 8-bit",  0x73, 16, SZ_16K, SP_OPTIONS),
7662306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 16MiB 1,8V 16-bit", 0x43, 16, SZ_16K, SP_OPTIONS16),
7762306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 16MiB 3,3V 16-bit", 0x53, 16, SZ_16K, SP_OPTIONS16),
7862306a36Sopenharmony_ci
7962306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 32MiB 1,8V 8-bit",  0x35, 32, SZ_16K, SP_OPTIONS),
8062306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 32MiB 3,3V 8-bit",  0x75, 32, SZ_16K, SP_OPTIONS),
8162306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 32MiB 1,8V 16-bit", 0x45, 32, SZ_16K, SP_OPTIONS16),
8262306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 32MiB 3,3V 16-bit", 0x55, 32, SZ_16K, SP_OPTIONS16),
8362306a36Sopenharmony_ci
8462306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 64MiB 1,8V 8-bit",  0x36, 64, SZ_16K, SP_OPTIONS),
8562306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 64MiB 3,3V 8-bit",  0x76, 64, SZ_16K, SP_OPTIONS),
8662306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 64MiB 1,8V 16-bit", 0x46, 64, SZ_16K, SP_OPTIONS16),
8762306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 64MiB 3,3V 16-bit", 0x56, 64, SZ_16K, SP_OPTIONS16),
8862306a36Sopenharmony_ci
8962306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 128MiB 1,8V 8-bit",  0x78, 128, SZ_16K, SP_OPTIONS),
9062306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 128MiB 1,8V 8-bit",  0x39, 128, SZ_16K, SP_OPTIONS),
9162306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 128MiB 3,3V 8-bit",  0x79, 128, SZ_16K, SP_OPTIONS),
9262306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 128MiB 1,8V 16-bit", 0x72, 128, SZ_16K, SP_OPTIONS16),
9362306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 128MiB 1,8V 16-bit", 0x49, 128, SZ_16K, SP_OPTIONS16),
9462306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 128MiB 3,3V 16-bit", 0x74, 128, SZ_16K, SP_OPTIONS16),
9562306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 128MiB 3,3V 16-bit", 0x59, 128, SZ_16K, SP_OPTIONS16),
9662306a36Sopenharmony_ci
9762306a36Sopenharmony_ci	LEGACY_ID_NAND("NAND 256MiB 3,3V 8-bit", 0x71, 256, SZ_16K, SP_OPTIONS),
9862306a36Sopenharmony_ci
9962306a36Sopenharmony_ci	/*
10062306a36Sopenharmony_ci	 * These are the new chips with large page size. Their page size and
10162306a36Sopenharmony_ci	 * eraseblock size are determined from the extended ID bytes.
10262306a36Sopenharmony_ci	 */
10362306a36Sopenharmony_ci
10462306a36Sopenharmony_ci	/* 512 Megabit */
10562306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 64MiB 1,8V 8-bit",  0xA2,  64, LP_OPTIONS),
10662306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 64MiB 1,8V 8-bit",  0xA0,  64, LP_OPTIONS),
10762306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 64MiB 3,3V 8-bit",  0xF2,  64, LP_OPTIONS),
10862306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 64MiB 3,3V 8-bit",  0xD0,  64, LP_OPTIONS),
10962306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 64MiB 3,3V 8-bit",  0xF0,  64, LP_OPTIONS),
11062306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 64MiB 1,8V 16-bit", 0xB2,  64, LP_OPTIONS16),
11162306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 64MiB 1,8V 16-bit", 0xB0,  64, LP_OPTIONS16),
11262306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 64MiB 3,3V 16-bit", 0xC2,  64, LP_OPTIONS16),
11362306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 64MiB 3,3V 16-bit", 0xC0,  64, LP_OPTIONS16),
11462306a36Sopenharmony_ci
11562306a36Sopenharmony_ci	/* 1 Gigabit */
11662306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 128MiB 1,8V 8-bit",  0xA1, 128, LP_OPTIONS),
11762306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 128MiB 3,3V 8-bit",  0xF1, 128, LP_OPTIONS),
11862306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 128MiB 3,3V 8-bit",  0xD1, 128, LP_OPTIONS),
11962306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 128MiB 1,8V 16-bit", 0xB1, 128, LP_OPTIONS16),
12062306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 128MiB 3,3V 16-bit", 0xC1, 128, LP_OPTIONS16),
12162306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 128MiB 1,8V 16-bit", 0xAD, 128, LP_OPTIONS16),
12262306a36Sopenharmony_ci
12362306a36Sopenharmony_ci	/* 2 Gigabit */
12462306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 256MiB 1,8V 8-bit",  0xAA, 256, LP_OPTIONS),
12562306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 256MiB 3,3V 8-bit",  0xDA, 256, LP_OPTIONS),
12662306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 256MiB 1,8V 16-bit", 0xBA, 256, LP_OPTIONS16),
12762306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 256MiB 3,3V 16-bit", 0xCA, 256, LP_OPTIONS16),
12862306a36Sopenharmony_ci
12962306a36Sopenharmony_ci	/* 4 Gigabit */
13062306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 512MiB 1,8V 8-bit",  0xAC, 512, LP_OPTIONS),
13162306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 512MiB 3,3V 8-bit",  0xDC, 512, LP_OPTIONS),
13262306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 512MiB 1,8V 16-bit", 0xBC, 512, LP_OPTIONS16),
13362306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 512MiB 3,3V 16-bit", 0xCC, 512, LP_OPTIONS16),
13462306a36Sopenharmony_ci
13562306a36Sopenharmony_ci	/* 8 Gigabit */
13662306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 1GiB 1,8V 8-bit",  0xA3, 1024, LP_OPTIONS),
13762306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 1GiB 3,3V 8-bit",  0xD3, 1024, LP_OPTIONS),
13862306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 1GiB 1,8V 16-bit", 0xB3, 1024, LP_OPTIONS16),
13962306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 1GiB 3,3V 16-bit", 0xC3, 1024, LP_OPTIONS16),
14062306a36Sopenharmony_ci
14162306a36Sopenharmony_ci	/* 16 Gigabit */
14262306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 2GiB 1,8V 8-bit",  0xA5, 2048, LP_OPTIONS),
14362306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 2GiB 3,3V 8-bit",  0xD5, 2048, LP_OPTIONS),
14462306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 2GiB 1,8V 16-bit", 0xB5, 2048, LP_OPTIONS16),
14562306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 2GiB 3,3V 16-bit", 0xC5, 2048, LP_OPTIONS16),
14662306a36Sopenharmony_ci
14762306a36Sopenharmony_ci	/* 32 Gigabit */
14862306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 4GiB 1,8V 8-bit",  0xA7, 4096, LP_OPTIONS),
14962306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 4GiB 3,3V 8-bit",  0xD7, 4096, LP_OPTIONS),
15062306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 4GiB 1,8V 16-bit", 0xB7, 4096, LP_OPTIONS16),
15162306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 4GiB 3,3V 16-bit", 0xC7, 4096, LP_OPTIONS16),
15262306a36Sopenharmony_ci
15362306a36Sopenharmony_ci	/* 64 Gigabit */
15462306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 8GiB 1,8V 8-bit",  0xAE, 8192, LP_OPTIONS),
15562306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 8GiB 3,3V 8-bit",  0xDE, 8192, LP_OPTIONS),
15662306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 8GiB 1,8V 16-bit", 0xBE, 8192, LP_OPTIONS16),
15762306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 8GiB 3,3V 16-bit", 0xCE, 8192, LP_OPTIONS16),
15862306a36Sopenharmony_ci
15962306a36Sopenharmony_ci	/* 128 Gigabit */
16062306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 16GiB 1,8V 8-bit",  0x1A, 16384, LP_OPTIONS),
16162306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 16GiB 3,3V 8-bit",  0x3A, 16384, LP_OPTIONS),
16262306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 16GiB 1,8V 16-bit", 0x2A, 16384, LP_OPTIONS16),
16362306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 16GiB 3,3V 16-bit", 0x4A, 16384, LP_OPTIONS16),
16462306a36Sopenharmony_ci
16562306a36Sopenharmony_ci	/* 256 Gigabit */
16662306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 32GiB 1,8V 8-bit",  0x1C, 32768, LP_OPTIONS),
16762306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 32GiB 3,3V 8-bit",  0x3C, 32768, LP_OPTIONS),
16862306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 32GiB 1,8V 16-bit", 0x2C, 32768, LP_OPTIONS16),
16962306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 32GiB 3,3V 16-bit", 0x4C, 32768, LP_OPTIONS16),
17062306a36Sopenharmony_ci
17162306a36Sopenharmony_ci	/* 512 Gigabit */
17262306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 64GiB 1,8V 8-bit",  0x1E, 65536, LP_OPTIONS),
17362306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 64GiB 3,3V 8-bit",  0x3E, 65536, LP_OPTIONS),
17462306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 64GiB 1,8V 16-bit", 0x2E, 65536, LP_OPTIONS16),
17562306a36Sopenharmony_ci	EXTENDED_ID_NAND("NAND 64GiB 3,3V 16-bit", 0x4E, 65536, LP_OPTIONS16),
17662306a36Sopenharmony_ci
17762306a36Sopenharmony_ci	{NULL}
17862306a36Sopenharmony_ci};
17962306a36Sopenharmony_ci
18062306a36Sopenharmony_ci/* Manufacturer IDs */
18162306a36Sopenharmony_cistatic const struct nand_manufacturer_desc nand_manufacturer_descs[] = {
18262306a36Sopenharmony_ci	{NAND_MFR_AMD, "AMD/Spansion", &amd_nand_manuf_ops},
18362306a36Sopenharmony_ci	{NAND_MFR_ATO, "ATO"},
18462306a36Sopenharmony_ci	{NAND_MFR_EON, "Eon"},
18562306a36Sopenharmony_ci	{NAND_MFR_ESMT, "ESMT", &esmt_nand_manuf_ops},
18662306a36Sopenharmony_ci	{NAND_MFR_FUJITSU, "Fujitsu"},
18762306a36Sopenharmony_ci	{NAND_MFR_HYNIX, "Hynix", &hynix_nand_manuf_ops},
18862306a36Sopenharmony_ci	{NAND_MFR_INTEL, "Intel"},
18962306a36Sopenharmony_ci	{NAND_MFR_MACRONIX, "Macronix", &macronix_nand_manuf_ops},
19062306a36Sopenharmony_ci	{NAND_MFR_MICRON, "Micron", &micron_nand_manuf_ops},
19162306a36Sopenharmony_ci	{NAND_MFR_NATIONAL, "National"},
19262306a36Sopenharmony_ci	{NAND_MFR_RENESAS, "Renesas"},
19362306a36Sopenharmony_ci	{NAND_MFR_SAMSUNG, "Samsung", &samsung_nand_manuf_ops},
19462306a36Sopenharmony_ci	{NAND_MFR_SANDISK, "SanDisk", &sandisk_nand_manuf_ops},
19562306a36Sopenharmony_ci	{NAND_MFR_STMICRO, "ST Micro"},
19662306a36Sopenharmony_ci	{NAND_MFR_TOSHIBA, "Toshiba", &toshiba_nand_manuf_ops},
19762306a36Sopenharmony_ci	{NAND_MFR_WINBOND, "Winbond"},
19862306a36Sopenharmony_ci};
19962306a36Sopenharmony_ci
20062306a36Sopenharmony_ci/**
20162306a36Sopenharmony_ci * nand_get_manufacturer_desc - Get manufacturer information from the
20262306a36Sopenharmony_ci *                              manufacturer ID
20362306a36Sopenharmony_ci * @id: manufacturer ID
20462306a36Sopenharmony_ci *
20562306a36Sopenharmony_ci * Returns a nand_manufacturer_desc object if the manufacturer is defined
20662306a36Sopenharmony_ci * in the NAND manufacturers database, NULL otherwise.
20762306a36Sopenharmony_ci */
20862306a36Sopenharmony_ciconst struct nand_manufacturer_desc *nand_get_manufacturer_desc(u8 id)
20962306a36Sopenharmony_ci{
21062306a36Sopenharmony_ci	int i;
21162306a36Sopenharmony_ci
21262306a36Sopenharmony_ci	for (i = 0; i < ARRAY_SIZE(nand_manufacturer_descs); i++)
21362306a36Sopenharmony_ci		if (nand_manufacturer_descs[i].id == id)
21462306a36Sopenharmony_ci			return &nand_manufacturer_descs[i];
21562306a36Sopenharmony_ci
21662306a36Sopenharmony_ci	return NULL;
21762306a36Sopenharmony_ci}
218