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我们使用美光Nand , MT29F16G08 , 大小是2GB , pagesize 是2048，blocksize 128K .
在 uboot 里面读取偏移0,偏移1GB 的数据是一样的。
nand dump 0 和nand dump 0x40000000. 都是写进去的MLO数据。
nand erase 0x40000000 0x80000 也会将偏移0的数据给擦除掉。
请问这是什么原因？
正确识别这个nand了吗？
如果 Uboot里面配置CONFIG_SYS_NAND_ONFI_DETECTION ，通过ONFI是可以正确检测到Flash信息的。
NAND device: Manufacturer ID: 0x2c, Chip ID: 0xd3 (Micron MT29F16G08AJADAWP)
2048 MiB
这个是个大容量的NAND FLASH，是不是工艺和之前的小容量的有些区别？
应该不会有这个问题， 最好能检查下测试过程。
Yaoming Qin，
先erase chip
然后烧MLO， 然后可以看到 dump 0 和1GB的内容是一样的。
U-Boot# nand dump 0nand dump 00000000Page 00000000 dump: 40 00 00 00 0c 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 43 48 53 45 54 54 49 4e 47 53 00 00 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff c1 c0 c0 c0 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b1 83 01 00 00 04 2f 40 14 00 00 ea 14 f0 9f e5 14 f0 9f e5 14 f0 9f e5 14 f0 9f e5 14 f0 9f e5 14 f0 9f e5 14 f0 9f e5 20 04 2f 40 24 04 2f 40 28 04 2f 40 2c 04 2f 40 30 04 2f 40 34 04 2f 40 38 04 2f 40 78 56 34 12 00 00 80 80 00 fc d0 3f b8 75 01 00 bc 2c d4 3f b8 75 01 00 de c0 ad 0b 82 03 00 eb 00 00 0f e1 1f 00 c0 e3 d3 00 80 e3 00 f0 29 e1 10 0f 11 ee 02 0a c0 e3 10 0f 01 ee 68 00 9f e5 10 0f 0c ee 09 00 00 eb 16 00 00 eb f8 03 00 eb 15 0f 07 ee 9a 0f 07 ee 95 0f 07 ee 48 00 9f e5 09 00 80 e0 10 0f 0c ee 1e ff 2f e1 1e ff 2f e1 00 00 a0 e3 17 0f 08 ee 15 0f 07 ee d5 0f 07 ee 9a 0f 07 ee 95 0f 07 ee 10 0f 11 ee 02 0a c0 e3 07 00 c0 e3 02 00 80 e3 02 0b 80 e3 01 0a 80 e3 10 0f 01 ee 0e f0 a0 e1 10 03 00 ea 00 04 2f 40 00 f0 20 e3 80 30 9f e5 30 40 2d e9 00 20 93 e5 88 10 92 e5 00 20 93 e5 2c 40 92 e5 00 20 93 e5 a8 c0 92 e5 00 20 93 e5 04 50 a0 e3 88 50 82 e5 00 50 93 e5 50 20 9f e5 20 50 95 e5 01 0c 55 e3 fa ff ff 1a a4 39 a0 e1 83 39 a0 e1 17 30 83 e3 00 34 83 e1 00 40 92 e5 1f 00 cc e3 01 00 80 e3 2c 30 84 e5 00 30 92 e5 07 10 81 e3 a8 00 83 e5 00 30 92 e5 88 10 83 e5 00 30 92 e5 20 30 93 e5 01 00 53 e3 fb ff ff 1a 30 80 bd e8 40 7a 30 40 1c 31 9f e5 f0 40 2d e9 00 20 93 e5 90 10 92 e5 00 20 93 e5 68 20 92 e5 00 c0 93 e5 80 50 9c e5 00 c0 93 e5 84 40 9c e5 00 c0 93 e5 d8 c0 9c e5 00 60 93 e5 04 70 a0 e3 90 70 86 e5 03 60 a0 e1 00 70 96 e5 d8 30 9f e5 5c 70 97 e5 01 0c 57 e3 fa ff ff 1a a2 29 a0 e1 32 00 50 e3 82 29 a0 e1 17 00 00 1a 32 2c 82 e3 17 20 82 e3 00 00 93 e5 1f 50 c5 e3 01 50 85 e3 68 20 80 e5 00 20 93 e5 1f 40 c4 e3 01 40 84 e3 80 50 82 e5 00 20 93 e5 1f c0 cc e3 01 c0 8c e3 84 40 82 e5 00 20 93 e5 07 10 81 e3 d8 c0 82 e5 00 20 93 e5 90 10 82 e5 00 20 93 e5 5c 20 92 e5 01 00 52 e3 fb ff ff 1a f0 80 bd e8 fa 2b 82 e3 17 20 82 e3 00 00 93 e5 1f 50 c5 e3 0a 50 85 e3 68 20 80 e5 00 20 93 e5 1f 40 c4 e3 08 40 84 e3 80 50 82 e5 00 20 93 e5 1f c0 cc e3 04 c0 8c e3 84 40 82 e5 00 20 93 e5 07 10 81 e3 d8 c0 82 e5 00 20 93 e5 90 10 82 e5 00 20 93 e5 5c 20 92 e5 01 00 52 e3 fb ff ff 1a f0 80 bd e8 40 7a 30 40 84 30 9f e5 30 40 2d e9 00 20 93 e5 94 10 92 e5 00 20 93 e5 40 40 92 e5 00 20 93 e5 a0 c0 92 e5 07 10 c1 e3 04 10 81 e3 00 20 93 e5 94 10 82 e5 00 50 93 e5 50 20 9f e5 34 50 95 e5 01 0c 15 e3 fa ff ff 0a a4 39 a0 e1 83 39 a0 e1 17 30 83 e3 00 34 83 e1 00 40 92 e5 1f 00 cc e3 01 00 80 e3 40 30 84 e5 00 30 92 e5 07 10 81 e3 a0 00 83 e5 00 30 92 e5 94 10 83 e5 00 30 92 e5 34 30 93 e5 01 00 13 e3 fb ff ff 0a 30 80 bd e8 40 7a 30 40 24 30 9f e5 02 20 a0 e3 00 10 93 e5 d0 20 81 e5 00 10 93 e5 28 20 81 e5 00 20 93 e5 28 20 92 e5 02 00 52 e3 fb ff ff 1a 1e ff 2f e1 44 7a 30 40 10 40 2d e9 4b 0f a0 e3 5f ff ff eb 32 00 a0 e3 80 ff ff eb 5c 33 9f e5 00 20 93 e5 8c 10 92 e5 00 20 93 e5 9c c0 92 e5 00 20 93 e5 ac 00 92 e5 00 20 93 e5 04 40 a0 e3 8c 40 82 e5 00 40 93 e5 30 23 9f e5 70 40 94 e5 01 0c 54 e3 fa ff ff 1a ac 39 a0 e1 83 39 a0 e1 0f 39 83 e3 17 30 83 e3 00 c0 92 e5 7f 00 c0 e3 05 00 80 e3 9c 30 8c e5 00 30 92 e5 07 10 81 e3 ac 00 83 e5 00 30 92 e5 8c 10 83 e5 00 30 92 e5 70 30 93 e5 01 00 53 e3 fb ff ff 1a dc 32 9f e5 03 2c a0 e3 00 30 93 e5 7c 20 83 e5 d0 32 9f e5 02 10 a0 e3 00 20 93 e5 e0 10 82 e5 03 10 a0 e1 00 20 91 e5 b8 32 9f e5 e0 20 92 e5 02 00 52 e3 fa ff ff 1a 00 10 93 e5 60 20 81 e5 03 20 a0 e1 00 30 92 e5 60 30 93 e5 02 00 53 e3 90 12 9f e5 fa ff ff 1a 00 20 91 e5 64 30 82 e5 00 30 91 e5 64 20 93 e5 02 00 52 e3 fb ff ff 1a 6c 32 9f e5 00 10 93 e5 0c 20 81 e5 00 20 93 e5 0c 20 92 e5 02 00 52 e3 fb ff ff 1a 54 32 9f e5 00 10 93 e5 dc 20 81 e5 03 10 a0 e1 00 20 91 e5 40 32 9f e5 dc 20 92 e5 02 00 52 e3 fa ff ff 1a 00 10 93 e5 20 21 81 e5 00 20 93 e5 20 21 92 e5 02 00 52 e3 fb ff ff 1a 14 32 9f e5 00 10 93 e5 08 20 81 e5 03 20 a0 e1 00 30 92 e5 00 12 9f e5 08 30 93 e5 02 00 53 e3 fa ff ff 1a f4 21 9f e5 00 00 92 e5 0c 30 80 e5 00 00 92 e5 00 30 80 e5 00 00 91 e5 00 30 80 e5 00 00 92 e5 08 30 80 e5 00 00 92 e5 04 30 80 e5 00 00 91 e5 04 30 80 e5 00 30 91 e5 04 30 93 e5 02 00 53 e3 fb ff ff 1a 00 20 92 e5 80 30 82 e5 a8 31 9f e5 00 20 93 e5 80 20 92 e5 02 00 52 e3 fb ff ff 1a 98 31 9f e5 01 10 a0 e3 00 30 93 e5 08 10 83 e5 80 31 9f e5 00 10 93 e5 b4 20 81 e5 00 20 93 e5 b4 20 92 e5 02 00 52 e3 fb ff ff 1a 68 31 9f e5 00 10 93 e5 30 20 81 e5 03 10 a0 e1 00 20 91 e5 54 31 9f e5 30 20 92 e5 02 00 52 e3 fa ff ff 1a 00 10 93 e5 40 20 81 e5 03 20 a0 e1 00 30 92 e5 40 30 93 e5 02 00 53 e3 2c 11 9f e5 fa ff ff 1a 00 20 91 e5 3c 30 82 e5 00 30 91 e5 3c 20 93 e5 02 00 52 e3 fb ff ff 1a 08 31 9f e5 00 10 93 e5 b8 20 81 e5 00 20 93 e5 b8 20 92 e5 02 00 52 e3 fb ff ff 1a f0 30 9f e5 00 10 93 e5 ac 20 81 e5 03 10 a0 e1OOB: ff ff c8 b0 e8 12 b2 4a 63 70 83 0f c6 76 57 00 19 5e 31 e9 df 54 40 1d 01 3f 45 6d d6 00 32 15 63 83 fe c7 ca e3 d5 17 30 bf 55 00 81 01 44 31 ea b7 62 2c 4e 16 ea 24 3a 00 ff ff ff ff ff ffU-Boot# nand dump 0x40000000 nand dump 40000000Page 40000000 dump: 40 00 00 00 0c 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 43 48 53 45 54 54 49 4e 47 53 00 00 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff c1 c0 c0 c0 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b1 83 01 00 00 04 2f 40 14 00 00 ea 14 f0 9f e5 14 f0 9f e5 14 f0 9f e5 14 f0 9f e5 14 f0 9f e5 14 f0 9f e5 14 f0 9f e5 20 04 2f 40 24 04 2f 40 28 04 2f 40 2c 04 2f 40 30 04 2f 40 34 04 2f 40 38 04 2f 40 78 56 34 12 00 00 80 80 00 fc d0 3f b8 75 01 00 bc 2c d4 3f b8 75 01 00 de c0 ad 0b 82 03 00 eb 00 00 0f e1 1f 00 c0 e3 d3 00 80 e3 00 f0 29 e1 10 0f 11 ee 02 0a c0 e3 10 0f 01 ee 68 00 9f e5 10 0f 0c ee 09 00 00 eb 16 00 00 eb f8 03 00 eb 15 0f 07 ee 9a 0f 07 ee 95 0f 07 ee 48 00 9f e5 09 00 80 e0 10 0f 0c ee 1e ff 2f e1 1e ff 2f e1 00 00 a0 e3 17 0f 08 ee 15 0f 07 ee d5 0f 07 ee 9a 0f 07 ee 95 0f 07 ee 10 0f 11 ee 02 0a c0 e3 07 00 c0 e3 02 00 80 e3 02 0b 80 e3 01 0a 80 e3 10 0f 01 ee 0e f0 a0 e1 10 03 00 ea 00 04 2f 40 00 f0 20 e3 80 30 9f e5 30 40 2d e9 00 20 93 e5 88 10 92 e5 00 20 93 e5 2c 40 92 e5 00 20 93 e5 a8 c0 92 e5 00 20 93 e5 04 50 a0 e3 88 50 82 e5 00 50 93 e5 50 20 9f e5 20 50 95 e5 01 0c 55 e3 fa ff ff 1a a4 39 a0 e1 83 39 a0 e1 17 30 83 e3 00 34 83 e1 00 40 92 e5 1f 00 cc e3 01 00 80 e3 2c 30 84 e5 00 30 92 e5 07 10 81 e3 a8 00 83 e5 00 30 92 e5 88 10 83 e5 00 30 92 e5 20 30 93 e5 01 00 53 e3 fb ff ff 1a 30 80 bd e8 40 7a 30 40 1c 31 9f e5 f0 40 2d e9 00 20 93 e5 90 10 92 e5 00 20 93 e5 68 20 92 e5 00 c0 93 e5 80 50 9c e5 00 c0 93 e5 84 40 9c e5 00 c0 93 e5 d8 c0 9c e5 00 60 93 e5 04 70 a0 e3 90 70 86 e5 03 60 a0 e1 00 70 96 e5 d8 30 9f e5 5c 70 97 e5 01 0c 57 e3 fa ff ff 1a a2 29 a0 e1 32 00 50 e3 82 29 a0 e1 17 00 00 1a 32 2c 82 e3 17 20 82 e3 00 00 93 e5 1f 50 c5 e3 01 50 85 e3 68 20 80 e5 00 20 93 e5 1f 40 c4 e3 01 40 84 e3 80 50 82 e5 00 20 93 e5 1f c0 cc e3 01 c0 8c e3 84 40 82 e5 00 20 93 e5 07 10 81 e3 d8 c0 82 e5 00 20 93 e5 90 10 82 e5 00 20 93 e5 5c 20 92 e5 01 00 52 e3 fb ff ff 1a f0 80 bd e8 fa 2b 82 e3 17 20 82 e3 00 00 93 e5 1f 50 c5 e3 0a 50 85 e3 68 20 80 e5 00 20 93 e5 1f 40 c4 e3 08 40 84 e3 80 50 82 e5 00 20 93 e5 1f c0 cc e3 04 c0 8c e3 84 40 82 e5 00 20 93 e5 07 10 81 e3 d8 c0 82 e5 00 20 93 e5 90 10 82 e5 00 20 93 e5 5c 20 92 e5 01 00 52 e3 fb ff ff 1a f0 80 bd e8 40 7a 30 40 84 30 9f e5 30 40 2d e9 00 20 93 e5 94 10 92 e5 00 20 93 e5 40 40 92 e5 00 20 93 e5 a0 c0 92 e5 07 10 c1 e3 04 10 81 e3 00 20 93 e5 94 10 82 e5 00 50 93 e5 50 20 9f e5 34 50 95 e5 01 0c 15 e3 fa ff ff 0a a4 39 a0 e1 83 39 a0 e1 17 30 83 e3 00 34 83 e1 00 40 92 e5 1f 00 cc e3 01 00 80 e3 40 30 84 e5 00 30 92 e5 07 10 81 e3 a0 00 83 e5 00 30 92 e5 94 10 83 e5 00 30 92 e5 34 30 93 e5 01 00 13 e3 fb ff ff 0a 30 80 bd e8 40 7a 30 40 24 30 9f e5 02 20 a0 e3 00 10 93 e5 d0 20 81 e5 00 10 93 e5 28 20 81 e5 00 20 93 e5 28 20 92 e5 02 00 52 e3 fb ff ff 1a 1e ff 2f e1 44 7a 30 40 10 40 2d e9 4b 0f a0 e3 5f ff ff eb 32 00 a0 e3 80 ff ff eb 5c 33 9f e5 00 20 93 e5 8c 10 92 e5 00 20 93 e5 9c c0 92 e5 00 20 93 e5 ac 00 92 e5 00 20 93 e5 04 40 a0 e3 8c 40 82 e5 00 40 93 e5 30 23 9f e5 70 40 94 e5 01 0c 54 e3 fa ff ff 1a ac 39 a0 e1 83 39 a0 e1 0f 39 83 e3 17 30 83 e3 00 c0 92 e5 7f 00 c0 e3 05 00 80 e3 9c 30 8c e5 00 30 92 e5 07 10 81 e3 ac 00 83 e5 00 30 92 e5 8c 10 83 e5 00 30 92 e5 70 30 93 e5 01 00 53 e3 fb ff ff 1a dc 32 9f e5 03 2c a0 e3 00 30 93 e5 7c 20 83 e5 d0 32 9f e5 02 10 a0 e3 00 20 93 e5 e0 10 82 e5 03 10 a0 e1 00 20 91 e5 b8 32 9f e5 e0 20 92 e5 02 00 52 e3 fa ff ff 1a 00 10 93 e5 60 20 81 e5 03 20 a0 e1 00 30 92 e5 60 30 93 e5 02 00 53 e3 90 12 9f e5 fa ff ff 1a 00 20 91 e5 64 30 82 e5 00 30 91 e5 64 20 93 e5 02 00 52 e3 fb ff ff 1a 6c 32 9f e5 00 10 93 e5 0c 20 81 e5 00 20 93 e5 0c 20 92 e5 02 00 52 e3 fb ff ff 1a 54 32 9f e5 00 10 93 e5 dc 20 81 e5 03 10 a0 e1 00 20 91 e5 40 32 9f e5 dc 20 92 e5 02 00 52 e3 fa ff ff 1a 00 10 93 e5 20 21 81 e5 00 20 93 e5 20 21 92 e5 02 00 52 e3 fb ff ff 1a 14 32 9f e5 00 10 93 e5 08 20 81 e5 03 20 a0 e1 00 30 92 e5 00 12 9f e5 08 30 93 e5 02 00 53 e3 fa ff ff 1a f4 21 9f e5 00 00 92 e5 0c 30 80 e5 00 00 92 e5 00 30 80 e5 00 00 91 e5 00 30 80 e5 00 00 92 e5 08 30 80 e5 00 00 92 e5 04 30 80 e5 00 00 91 e5 04 30 80 e5 00 30 91 e5 04 30 93 e5 02 00 53 e3 fb ff ff 1a 00 20 92 e5 80 30 82 e5 a8 31 9f e5 00 20 93 e5 80 20 92 e5 02 00 52 e3 fb ff ff 1a 98 31 9f e5 01 10 a0 e3 00 30 93 e5 08 10 83 e5 80 31 9f e5 00 10 93 e5 b4 20 81 e5 00 20 93 e5 b4 20 92 e5 02 00 52 e3 fb ff ff 1a 68 31 9f e5 00 10 93 e5 30 20 81 e5 03 10 a0 e1 00 20 91 e5 54 31 9f e5 30 20 92 e5 02 00 52 e3 fa ff ff 1a 00 10 93 e5 40 20 81 e5 03 20 a0 e1 00 30 92 e5 40 30 93 e5 02 00 53 e3 2c 11 9f e5 fa ff ff 1a 00 20 91 e5 3c 30 82 e5 00 30 91 e5 3c 20 93 e5 02 00 52 e3 fb ff ff 1a 08 31 9f e5 00 10 93 e5 b8 20 81 e5 00 20 93 e5 b8 20 92 e5 02 00 52 e3 fb ff ff 1a f0 30 9f e5 00 10 93 e5 ac 20 81 e5 03 10 a0 e1OOB: ff ff c8 b0 e8 12 b2 4a 63 70 83 0f c6 76 57 00 19 5e 31 e9 df 54 40 1d 01 3f 45 6d d6 00 32 15 63 83 fe c7 ca e3 d5 17 30 bf 55 00 81 01 44 31 ea b7 62 2c 4e 16 ea 24 3a 00 ff ff ff ff ff ff
1, uboot启动时
看到你的nand 大小是多少？是2048MiB吗？
U-Boot 2010.12-rc2 (Jan 12 2011 - 19:44:22)
Cores: ARM 297 MHz DDR: 243 MHz I2C: ready DRAM: 128 MiB NAND: 2048 MiB
2，从NAND FLASH的第8页看到如果要是16Bit的nand flash，需要使用CE#2信号线。8Gbit不需要，请确认你的硬件；
MT29F16G08AJADA 是8bit的，不需要接 CE#2
你uboot启动信息里显示是1024MB 还是2048MiB呢？
帖子上面说了
