用SD卡写数据写一半报错。
uboot的nand bad 把几乎所有块标记为坏道。。（连续的地址）。貌似前面的一小块没问题。

请把输出信息发上来看看，尽量完整一些

nand bad输出结果（部分）。

  0cac0000                                                                      
  0cb00000                                                                      
  0cb20000                                                                      
  0cb40000                                                                      
  0cb60000                                                                      
  0cb80000                                                                      
  0cba0000                                                                      
  0cbc0000                                                                      
  0cbe0000                                                                      
  0cc00000                                                                      
  0cc20000                                                                      
  0cc40000                                                                      
  0cc60000                                                                      
  0cc80000                                                                      
  0cca0000                                                                      
  0ccc0000                                                                      
  0cce0000                                                                      
  0cd00000                                                                      
  0cd20000                                                                      
  0cd40000                                                                      
  0cd60000                                                                      
  0cd80000                                                                      
  0cda0000                                                                      
  0cde0000                                                                      
  0ce00000                                                                      
  0ce60000                                                                      
  0cec0000                                                                      
  0cee0000                                                                      
  0cf00000                                                                      
  0cf40000                                                                      
  0cf60000                                                                      
  0cf80000                                                                      
  0cfa0000                                                                      
  0cfc0000                                                                      
  0d000000                                                                      
  0d020000                                                                      
  0d060000                                                                      
  0d0a0000                                                                      
  0d0e0000                                                                      
  0d100000                                                                      
  0d120000                                                                      
  0d140000                                                                      
  0d160000                                                                      
  0d180000                                                                      
  0d1a0000                                                                      
  0d1c0000                                                                      
  0d1e0000                                                                      
  0d200000                                                                      
  0d220000                                                                      
  0d240000                                                                      
  0d260000                                                                      
  0d280000                                                                      
  0d2a0000                                                                      
  0d2e0000                                                                      
  0d300000                                                                      
  0d320000                                                                      
  0d340000                                                                      
  0d360000                                                                      
  0d380000                                                                      
  0d3a0000                                                                      
  0d3c0000                                                                      
  0d3e0000                                                                      
  0d400000                                                                      
  0d420000                                                                      
  0d440000                                                                      
  0d460000                                                                      
  0d480000                                                                      
  0d4e0000                                                                      
  0d500000                                                                      
  0d520000                                                                      
  0d540000                                                                      
  0d560000                                                                      
  0d580000                                                                      
  0d5a0000                                                                      
  0d5c0000                                                                      
  0d5e0000                                                                      
  0d600000                                                                      
  0d640000                                                                      
  0d680000                                                                      
  0d6a0000                                                                      
  0d6c0000                                                                      
  0d6e0000                                                                      
  0d740000                                                                      
  0d760000                                                                      
  0d780000                                                                      
  0d7a0000                                                                      
  0d7c0000                                                                      
  0d7e0000                                                                      
  0d800000                                                                      
  0d820000                                                                      
  0d840000                                                                      
  0d860000                                                                      
  0d8a0000                                                                      
  0d8e0000                                                                      
  0d900000                                                                      
  0d940000                                                                      
  0d960000                                                                      
  0d980000                                                                      
  0d9c0000
好像是从头到尾全部被标记了，都是同样的间隔。

用最新的superboot写linux 。uboot和内核能写入。写yaffs-image的时候99%报错。没提示错误。四个等全亮。急促的短报警音。
试过nand scrub 运行后变成四个坏道。然后写系统也是报错。之后检测就还是全部标记为坏道。

貌似情况变得更糟糕了。
现在开机出现错误。。
U-Boot 1.1.6 (Dec 31 2010 - 14:36:43) for FriendlyARM MINI6410                
                                                                              
                                                                              
CPU:     S3C6410@532MHz                                                        
         Fclk = 532MHz, Hclk = 133MHz, Pclk = 66MHz, Serial = CLKUART (SYNC Mo
Board:   MINI6410                                                              
DRAM:    256 MB                                                                
Flash:   0 kB                                                                  
NAND:    undefined instruction                                                
pc : [<c7e08048>]          lr : [<c7e08860>]                                  
sp : c7ffff3c  ip : c7e08040     fp : 00000000                                
r10: 000000b8  r9 : 00000001     r8 : 2862ab45                                
r7 : 92b946a4  r6 : 00000000     r5 : c7e32fdc  r4 : c7e33090                  
r3 : ffffffff  r2 : 00000000     r1 : 00000090  r0 : c7e32fdc                  
Flags: nZCv  IRQs off  FIQs off  Mode SVC_32                                  
Resetting CPU ...