[ts-7000] 2.6.32 + matt4 can't use flash on TS7250

["j.chitte" <>]

Hi,

I'm having some problems accessing mtd devices with 2.6.32.11 with Matthieu's 
patches .

All works well booting nfs but if I try to mount or erase the mtd devices , no 
go. 

# ls /dev/mtd* -ail                                                             
         
    138 crw-rw----    1 root     root       90,   0 Jun  2 13:50 /dev/mtd0      
         
    139 crw-rw----    1 root     root       90,   1 Jun  2 13:50 /dev/mtd0ro    
         
    140 crw-rw----    1 root     root       90,   2 Jun  2 13:50 /dev/mtd1      
         
    141 crw-rw----    1 root     root       90,   3 Jun  2 13:50 /dev/mtd1ro    
         
    142 crw-rw----    1 root     root       90,   4 Jun  2 13:50 /dev/mtd2      
         
    143 crw-rw----    1 root     root       90,   5 Jun  2 13:50 /dev/mtd2ro    
         
    118 brw-rw----    1 root     root       31,   0 Jun  2 13:50 /dev/mtdblock0 
         
    119 brw-rw----    1 root     root       31,   1 Jun  2 13:50 /dev/mtdblock1 
         
    120 brw-rw----    1 root     root       31,   2 Jun  2 13:50 /dev/mtdblock2 
    


# flash_eraseall /dev/mtd1
flash_eraseall: can't open '/dev/mtd1': Permission denied

Try to mount mtdblock1 spews lots of badness about bad erase blocks. 


>From dmesg:

Searching for NAND flash...                                                     
         
NAND device: Manufacturer ID: 0xec, Chip ID: 0xf1 (Samsung NAND 128MiB 3,3V 
8-bit)       
Scanning device for bad blocks                                                  
         
Bad eraseblock 0 at 0x000000000000                                              
         
cmdlinepart partition parsing not available                                     
         
Using static partition definition                                               
         
Creating 3 MTD partitions on "ts7250-nand":                                     
         
0x000000000000-0x000000004000 : "TS-BOOTROM"                                    
         
mtd: partition "TS-BOOTROM" doesn't end on an erase block -- force read-only    
         
0x000000004000-0x000007d04000 : "Linux"                                         
         
mtd: partition "Linux" doesn't start on an erase block boundary -- force 
read-only       
0x000007d04000-0x000008000000 : "RedBoot"                                       
         
mtd: partition "RedBoot" doesn't start on an erase block boundary -- force 
read-only   


Some digging indicates this seems to be due to incorrect page size , 2k on 
TS7250, but this is coming up at redboot so presumably nothing to do with yaffs 
but mtd.

I see nothing the mtd sections that relates this other than the single option 
to add specific support for ts boards. 

Is this option not aware of different page size or am I missing a trick?

TIA. 



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