[U-Boot-Users] Flash driver : help req

batsayan.das at tcs.com batsayan.das at tcs.com
Tue Jan 17 13:38:13 CET 2006


Our MPC8260 based customs board's flash configuration is as follows

Flash Bank      Base Address            Make                    Number of 
flashes per chip size           Total size

CS0             0xFE000000              M29W040B                2  0.5MB   
CS1             0xFE800000              AM29LV160BB             2  2MB  

My question is

1. Is is mandatory that CS0 and CS1 to be contiguous?
2. what should be the value of  CFG_MAX_FLASH_BANKS? 2 or 4? 
3. If for a board, CS0 has "n1" number of flash chips connected and CS1 
has "n2" number of flash chips connected, then what will be the suggested 
structure of flash driver? I found that flash drivers for different board 
does not consider the number of physical flash chips present in a board. 
4.Is there any reference board which has multiple flash chips connected 
both to  CS0  and CS1? 

Batsayan Das

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