Flashrom Write Verification Failure on Conga-TC570 (Intel Tiger Lake)

[ליאור סלמונה]

*Dear Flashrom Developers,*

I am experiencing an issue with *flashrom v1.1* on *Linux 5.15.86 (x86_64)*
while attempting to flash a *Macronix MX25L25635E* SPI NOR flash chip on my
*Conga-TC570* board, which features an *Intel® Core™ i5-1145GRE (Tiger
Lake)* processor.
*Issue Details:*

- When the flash is *clean* (filled with 0xFF), I can *erase* and *write*
   successfully.
   - However, *verification fails*, reporting mismatched data.
   - The failure occurs *at address 0x00000000*, with the following error:

FAILED at 0x00000000! Expected=0x11, found=0x00
   Failed byte count from 0x000000 - 0x01FFFFF: 0x8DD2A6

*Steps Taken So Far:*

1. *Checked Write Protection* using flashrom -p internal --wp-status →
   No active protection.
   2. *Attempted manual erase* before writing:

flash_erase /dev/mtd0 0 0
   flashrom -p internal -w bios.bin

3. *Loaded Intel SPI modules*:

modprobe intel_spi_pci
   modprobe intel_spi_platform

4. *Verified SPI device detection*:

ls /sys/bus/spi/devices/

The SPI device appears correctly.
   5. *Tested alternative flashing methods*:
      - Using dd:

dd if=bios.bin of=/dev/mtd0 bs=4096

Result: *Write completes, but verification still fails.*
      - Using flashrom -p internal -V for verbose output (logs available on
      request).

*Questions:*

1. Is this a known issue with flashrom on *Tiger Lake* platforms?
   2. Could the *Intel SPI controller* be interfering with writes?
   3. Are there any debugging steps or patches I should try?

Any guidance would be greatly appreciated. Thank you for your support!

Best regards,
*Lior Salmona*

[Anastasia Klimchuk]

Hello Lior,

I have a few questions.

You said you are using flashrom v1.1, and that you checked
write-protection with --wp-status command
But --wp-status command was only released in v1.3

Also you are using
flash_erase /dev/mtd0 0 0
bur flash_erase is not flashrom?

‪On Thu, Mar 6, 2025 at 6:48 PM ‫ליאור סלמונה‬‎  wrote:‬
> Dear Flashrom Developers,
>
> I am experiencing an issue with flashrom v1.1 on Linux 5.15.86 (x86_64) while attempting to flash a Macronix MX25L25635E SPI NOR flash chip on my Conga-TC570 board, which features an Intel® Core™ i5-1145GRE (Tiger Lake) processor.
>
> Issue Details:
>
> When the flash is clean (filled with 0xFF), I can erase and write successfully.
> However, verification fails, reporting mismatched data.
> The failure occurs at address 0x00000000, with the following error:
>
> FAILED at 0x00000000! Expected=0x11, found=0x00
> Failed byte count from 0x000000 - 0x01FFFFF: 0x8DD2A6
>
> Steps Taken So Far:
>
> Checked Write Protection using flashrom -p internal --wp-status → No active protection.
> Attempted manual erase before writing:
>
> flash_erase /dev/mtd0 0 0
> flashrom -p internal -w bios.bin
>
> Loaded Intel SPI modules:
>
> modprobe intel_spi_pci
> modprobe intel_spi_platform
>
> Verified SPI device detection:
>
> ls /sys/bus/spi/devices/
>
> The SPI device appears correctly.
> Tested alternative flashing methods:
>
> Using dd:
>
> dd if=bios.bin of=/dev/mtd0 bs=4096
>
> Result: Write completes, but verification still fails.
> Using flashrom -p internal -V for verbose output (logs available on request).
>
> Questions:
>
> Is this a known issue with flashrom on Tiger Lake platforms?
> Could the Intel SPI controller be interfering with writes?
> Are there any debugging steps or patches I should try?
>
> Any guidance would be greatly appreciated. Thank you for your support!
>
> Best regards,
> Lior Salmona
>
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