[U-Boot] problem detecting CFI

[wpa at fastmail.fm <wpa@fastmail.fm>]

I have a working u-boot 2008.10 on a mips 32 board and am trying to port
it over to u-boot 2009.06.
So I used buildroot 2009.08 to build the tool chain for my mips32 board
as well as u-boot2009.06. I also copied the previous u-boot
initialization code to
initialize timer, serial port, ram and etc from u-boot 2008.10 to
2009.06.

Right now the problem is the new u-boot 2009.06 does not detect cfi of
the flash. I am pretty sure u-boot is running from SDRAM when the
problem happens because the address is in the range of SDRAM. Please let
me know if you have any suggestion - I am running out of ideas. I am
attaching the printout from both the working u-boot 2008.10 and u-boot
2009.06 below.

Thanks a lot.

U-Boot 2009.06 (Sep 30 2009 - 18:41:26)

Reset Cause: Hardware Reset
DRAM:  64 MB
Top of RAM usable for U-Boot at: 98000000
Reserving 139k for U-Boot at: 97fdc000
Reserving 4352k for malloc() at: 97b9c000
Reserving 36 Bytes for Board Info at: 97b9bfdc
Reserving 36 Bytes for Global Data at: 97b9bfb8
Reserving 128k for boot params() at: 97b7bfb8
Stack Pointer at: 97b7bf98
Now running in RAM - U-Boot at: 97fdc000
flash detect cfi
not found
flash detect cfi
not found


U-Boot 2008.10 (Sep 30 2009 - 11:37:03)

Reset Cause: Hardware Reset
DRAM:  64 MB
Top of RAM usable for U-Boot at: 98000000
Reserving 736k for U-Boot at: 97f44000
Reserving 4352k for malloc() at: 97b04000
Reserving 44 Bytes for Board Info at: 97b03fd4
Reserving 36 Bytes for Global Data at: 97b03fb0
Reserving 128k for boot params() at: 97ae3fb0
Stack Pointer at: 97ae3f98
Now running in RAM - U-Boot at: 97f44000
flash detect cfi
fwc addr b0000000 cmd f0 f0 8bit x 8 bit
fwc addr b0000000 cmd ff ff 8bit x 8 bit
fwc addr b0000055 cmd 98 98 8bit x 8 bit
is= cmd 51(Q) addr b0000010 is= 4f 51
fwc addr b0000555 cmd 98 98 8bit x 8 bit
is= cmd 51(Q) addr b0000010 is= 4f 51
fwc addr b0000000 cmd f0 f0f0 16bit x 8 bit
fwc addr b0000000 cmd ff ffff 16bit x 8 bit
fwc addr b00000aa cmd 98 9898 16bit x 8 bit
is= cmd 51(Q) addr b0000020 is= 5151 5151
is= cmd 52(R) addr b0000022 is= 5252 5252
is= cmd 59(Y) addr b0000024 is= 5959 5959
device interface is 2
found port 2 chip 1 port 16 bits chip 8 bits