SPI flash

Thanx anakha for your quick reply!

I have some problem with my SPI flash; I'm using an Spansion S25FL204K0TMFI04, it works in active serial mode and my FPGA loads correctly from it, but when I try to program it with the "NIOS II flash programmer" I receive the following messages:

Using cable "USB-Blaster [USB-0]", device 1, instance 0x00

Resetting and pausing target processor: OK

Processor data bus width is 32 bits

Looking for EPCS registers at address 0x00011000 (with 32bit alignment)

Initial values: 0001703A 04C00074 9801483A 9CFFF804 983FFD1E 0000203A

Not here: reserved fields are non-zero

Looking for EPCS registers at address 0x00011100 (with 32bit alignment)

Initial values: 92400237 4A40100C 483FFD26 90000135 92400237 4A40200C

Not here: reserved fields are non-zero

Looking for EPCS registers at address 0x00011200 (with 32bit alignment)

Initial values: 108001C4 1004D0FA 002EE03A 003F9C06 002EE03A 003F9506

Not here: reserved fields are non-zero

Looking for EPCS registers at address 0x00011300 (with 32bit alignment)

Initial values: 00000000 00000000 00000000 00000000 00000000 00000000

Not here: SPI_SLAVE_SEL has 0 valid bits (should be between 1 and 16)

Looking for EPCS registers at address 0x00011400 (with 32bit alignment)

Initial values: 00000000 00000000 00000260 00000000 00000000 00000001

Valid registers found

EPCS signature is 0x12

EPCS identifier is 0x014013

No EPCS layout data - looking for section [EPCS-014013]

Unable to use EPCS device

Leaving target processor paused

Do you have any ideas?

Thanx in advance