JtagKey-Tiny and SST25VF040B detected but read error.

[Carlos C]

Hi,

I'm testing an Amontec JtagKey-tiny interface for programming a 
SST25VF040B eeprom i'm using in a project.
The Jtagkey-tiny is detected without problems, it reads the eeprom ID 
and is detected.

But when i try to read it contents, i get an error:

$ ./flashrom -p ft2232_spi:type=jtagkey,port=A -Vr test.bin
    flashrom v0.9.3-r1205 on Linux 2.6.32-26-generic (i686), built with
    libpci 3.0.0, GCC 4.4.3, little endian
    flashrom is free software, get the source code at
    http://www.flashrom.org

Calibrating delay loop... OS timer resolution is 2 usecs, 1000M
    loops per second, 10 myus = 11 us, 100 myus = 91 us, 1000 myus = 904
    us, 10000 myus = 9823 us, 8 myus = 10 us, OK.
    Initializing ft2232_spi programmer
    Using device type Amontec JTAGkey interface A
    Set clock divisor
    SPI clock is 2.000000MHz
    No loopback of TDI/DO TDO/DI
    Set data bits
    [Probings ommited]
    Probing for SST SST25VF040B, 512 KB: probe_spi_rdid_generic: id1
    0xbf, id2 0x258d
    Chip status register is bf
    Chip status register: Block Protect Write Disable (BPL) is set
    Chip status register: Auto Address Increment Programming (AAI) is
    not set
    Chip status register: Bit 5 / Block Protect 3 (BP3) is set
    Chip status register: Bit 4 / Block Protect 2 (BP2) is set
    Chip status register: Bit 3 / Block Protect 1 (BP1) is set
    Chip status register: Bit 2 / Block Protect 0 (BP0) is set
    Chip status register: Write Enable Latch (WEL) is set
    Chip status register: Write In Progress (WIP/BUSY) is set
    Resulting block protection : all blocks
    Found chip "SST SST25VF040B" (512 KB, SPI) at physical address
    0xfff80000.
    [More probings ommited]
    [UNTESTED status warning ommited]
    Some block protection in effect, disabling
    Missing status register write definition, assuming EWSR is needed
    Reading flash... ftdi_write_data: -110, usb bulk write failed
    send_buf failed at end: 1
    Read operation failed!
    FAILED.

As you can see, i tried to low the SPI speed to 2MHz.
Any idea? I know this part is marked as UNTESTED, but it should work as 
SST25VF080B do.

Thanks,
Carlos