[U-Boot-Users] CFI compliant memory question

joseph_sacco at comcast.net joseph_sacco at comcast.net
Thu Oct 25 21:36:49 CEST 2007


I am working with a board that has 2 CFI-compliant Spansion S29JL064H flash 
memory devices.  Each device is 64 Megabit (8 M x 8-bit  / 4M x 16-bit) in size. 

The two flash memory devices are connected in "parallel", effectively doubling 
the word size while maintaining the total number of sectors, i.e., 

Single Device
-------------------

Bank      Megabits           Sector Sizes
1              8 Mb                  8    8Kbyte / 4Kword
                                         15    64Kbyte  / 32Kword
2            24Mb                 48    64Kbyte/ 32Kword
3            24Mb                 48    64Kbyte/ 32Kword
4             8 Mb                 15    64Kbyte  / 32Kword
                                           8    8Kbyte / 4Kword

Two devices connected in "parallel"
--------------------------------------------------------------------
Bank      Megabits           Sector Sizes
1             16 Mb                 8      16Kbyte / 8Kword
                                         15    128Kbyte  / 64Kword
2            48Mb                 48    128Kbyte/ 64Kword
3            48Mb                 48    128Kbyte/ 64Kword
4             16Mb                15    128Kbyte / 64Kword
                                            8      16Kbyte / 8Kword
 
Question:

Should I expect u-boot's common CFI driver work with this configuration?


-Joseph

--
joseph_sacco [at] comcast [dot] net




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