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DM3730支持NAND启动，但是却没有找到对FLASH型号选取的说明。
在DVSDK中找到两个nand_ids.c文件，里面包含了一部分FLASH的参数，请问是否是只有满足其对应参数才能实现从NAND启动呢，或者有其他信息我遗漏了？ 拷贝代码如下: /* * drivers/mtd/nandids.c * * Copyright (C) 2002 Thomas Gleixner (tglx@linutronix.de) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * */ #include #include /* * Chip ID list * * Name. ID code, pagesize, chipsize in MegaByte, eraseblock size, * options * * Pagesize; 0, 256, 512 * 0 get this information from the extended chip ID + 256 256 Byte page size * 512 512 Byte page size */ struct nand_flash_dev nand_flash_ids[] = [ #ifdef CONFIG_MTD_NAND_MUSEUM_IDS ["NAND 1MiB 5V 8-bit", 0x6e, 256, 1, 0x1000, 0], ["NAND 2MiB 5V 8-bit", 0x64, 256, 2, 0x1000, 0], ["NAND 4MiB 5V 8-bit", 0x6b, 512, 4, 0x2000, 0], ["NAND 1MiB 3,3V 8-bit", 0xe8, 256, 1, 0x1000, 0], ["NAND 1MiB 3,3V 8-bit", 0xec, 256, 1, 0x1000, 0], ["NAND 2MiB 3,3V 8-bit", 0xea, 256, 2, 0x1000, 0], ["NAND 4MiB 3,3V 8-bit", 0xd5, 512, 4, 0x2000, 0], ["NAND 4MiB 3,3V 8-bit", 0xe3, 512, 4, 0x2000, 0], ["NAND 4MiB 3,3V 8-bit", 0xe5, 512, 4, 0x2000, 0], ["NAND 8MiB 3,3V 8-bit", 0xd6, 512, 8, 0x2000, 0], ["NAND 8MiB 1,8V 8-bit", 0x39, 512, 8, 0x2000, 0], ["NAND 8MiB 3,3V 8-bit", 0xe6, 512, 8, 0x2000, 0], ["NAND 8MiB 1,8V 16-bit", 0x49, 512, 8, 0x2000, NAND_BUSWIDTH_16], ["NAND 8MiB 3,3V 16-bit", 0x59, 512, 8, 0x2000, NAND_BUSWIDTH_16], #endif ["NAND 16MiB 1,8V 8-bit", 0x33, 512, 16, 0x4000, 0], ["NAND 16MiB 3,3V 8-bit", 0x73, 512, 16, 0x4000, 0], ["NAND 16MiB 1,8V 16-bit", 0x43, 512, 16, 0x4000, NAND_BUSWIDTH_16], ["NAND 16MiB 3,3V 16-bit", 0x53, 512, 16, 0x4000, NAND_BUSWIDTH_16], ["NAND 32MiB 1,8V 8-bit", 0x35, 512, 32, 0x4000, 0], ["NAND 32MiB 3,3V 8-bit", 0x75, 512, 32, 0x4000, 0], ["NAND 32MiB 1,8V 16-bit", 0x45, 512, 32, 0x4000, NAND_BUSWIDTH_16], ["NAND 32MiB 3,3V 16-bit", 0x55, 512, 32, 0x4000, NAND_BUSWIDTH_16], ["NAND 64MiB 1,8V 8-bit", 0x36, 512, 64, 0x4000, 0], ["NAND 64MiB 3,3V 8-bit", 0x76, 512, 64, 0x4000, 0], ["NAND 64MiB 1,8V 16-bit", 0x46, 512, 64, 0x4000, NAND_BUSWIDTH_16], ["NAND 64MiB 3,3V 16-bit", 0x56, 512, 64, 0x4000, NAND_BUSWIDTH_16], ["NAND 128MiB 1,8V 8-bit", 0x78, 512, 128, 0x4000, 0], ["NAND 128MiB 1,8V 8-bit", 0x39, 512, 128, 0x4000, 0], ["NAND 128MiB 3,3V 8-bit", 0x79, 512, 128, 0x4000, 0], ["NAND 128MiB 1,8V 16-bit", 0x72, 512, 128, 0x4000, NAND_BUSWIDTH_16], ["NAND 128MiB 1,8V 16-bit", 0x49, 512, 128, 0x4000, NAND_BUSWIDTH_16], ["NAND 128MiB 3,3V 16-bit", 0x74, 512, 128, 0x4000, NAND_BUSWIDTH_16], ["NAND 128MiB 3,3V 16-bit", 0x59, 512, 128, 0x4000, NAND_BUSWIDTH_16], ["NAND 256MiB 3,3V 8-bit", 0x71, 512, 256, 0x4000, 0], /* * These are the new chips with large page size. The pagesize and the * erasesize is determined from the extended id bytes */ #define LP_OPTIONS (NAND_SAMSUNG_LP_OPTIONS | NAND_NO_READRDY | NAND_NO_AUTOINCR) #define LP_OPTIONS16 (LP_OPTIONS | NAND_BUSWIDTH_16) /*512 Megabit */ ["NAND 64MiB 1,8V 8-bit", 0xA2, 0, 64, 0, LP_OPTIONS], ["NAND 64MiB 3,3V 8-bit", 0xF2, 0, 64, 0, LP_OPTIONS], ["NAND 64MiB 1,8V 16-bit", 0xB2, 0, 64, 0, LP_OPTIONS16], ["NAND 64MiB 3,3V 16-bit", 0xC2, 0, 64, 0, LP_OPTIONS16], /* 1 Gigabit */ ["NAND 128MiB 1,8V 8-bit", 0xA1, 0, 128, 0, LP_OPTIONS], ["NAND 128MiB 3,3V 8-bit", 0xF1, 0, 128, 0, LP_OPTIONS], ["NAND 128MiB 1,8V 16-bit", 0xB1, 0, 128, 0, LP_OPTIONS16], ["NAND 128MiB 3,3V 16-bit", 0xC1, 0, 128, 0, LP_OPTIONS16], /* 2 Gigabit */ ["NAND 256MiB 1,8V 8-bit", 0xAA, 0, 256, 0, LP_OPTIONS], ["NAND 256MiB 3,3V 8-bit", 0xDA, 0, 256, 0, LP_OPTIONS], ["NAND 256MiB 1,8V 16-bit", 0xBA, 0, 256, 0, LP_OPTIONS16], ["NAND 256MiB 3,3V 16-bit", 0xCA, 0, 256, 0, LP_OPTIONS16], /* 4 Gigabit */ ["NAND 512MiB 1,8V 8-bit", 0xAC, 0, 512, 0, LP_OPTIONS], ["NAND 512MiB 3,3V 8-bit", 0xDC, 0, 512, 0, LP_OPTIONS], ["NAND 512MiB 1,8V 16-bit", 0xBC, 0, 512, 0, LP_OPTIONS16], ["NAND 512MiB 3,3V 16-bit", 0xCC, 0, 512, 0, LP_OPTIONS16], /* 8 Gigabit */ ["NAND 1GiB 1,8V 8-bit", 0xA3, 0, 1024, 0, LP_OPTIONS], ["NAND 1GiB 3,3V 8-bit", 0xD3, 0, 1024, 0, LP_OPTIONS], ["NAND 1GiB 1,8V 16-bit", 0xB3, 0, 1024, 0, LP_OPTIONS16], ["NAND 1GiB 3,3V 16-bit", 0xC3, 0, 1024, 0, LP_OPTIONS16], /* 16 Gigabit */ ["NAND 2GiB 1,8V 8-bit", 0xA5, 0, 2048, 0, LP_OPTIONS], ["NAND 2GiB 3,3V 8-bit", 0xD5, 0, 2048, 0, LP_OPTIONS], ["NAND 2GiB 1,8V 16-bit", 0xB5, 0, 2048, 0, LP_OPTIONS16], ["NAND 2GiB 3,3V 16-bit", 0xC5, 0, 2048, 0, LP_OPTIONS16], /* * Renesas AND 1 Gigabit. Those chips do not support extended id and * have a strange page/block layout ! The chosen minimum erasesize is * 4 * 2 * 2048 = 16384 Byte, as those chips have an array of 4 page * planes 1 block = 2 pages, but due to plane arrangement the blocks * 0-3 consists of page 0 + 4,1 + 5, 2 + 6, 3 + 7 Anyway JFFS2 would * increase the eraseblock size so we chose a combined one which can be * erased in one go There are more speed improvements for reads and * writes possible, but not implemented now */ ["AND 128MiB 3,3V 8-bit", 0x01, 2048, 128, 0x4000, NAND_IS_AND | NAND_NO_AUTOINCR |NAND_NO_READRDY | NAND_4PAGE_ARRAY | BBT_AUTO_REFRESH ], [NULL,] ]; /* * Manufacturer ID list */ struct nand_manufacturers nand_manuf_ids[] = [ [NAND_MFR_TOSHIBA, "Toshiba"], [NAND_MFR_SAMSUNG, "Samsung"], [NAND_MFR_FUJITSU, "Fujitsu"], [NAND_MFR_NATIONAL, "National"], [NAND_MFR_RENESAS, "Renesas"], [NAND_MFR_STMICRO, "ST Micro"], [NAND_MFR_HYNIX, "Hynix"], [NAND_MFR_MICRON, "Micron"], [NAND_MFR_AMD, "AMD"], [0x0, "Unknown"] ]; 
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