[flashrom] probe for SST20EE010 fails

[Guenter]

Hi,
I've a chip which is from SST and labeled as PH29EE010 150-3CF.
flashrom doesnt detect this chip although it should as -L stats:
flashrom -L | grep 29EE010
SST       SST29EE010            P R W                       128 
Parallel

if I check for the chip it still fails and reads flash content:
flashrom -V -c SST29EE010
flashrom v0.9.2-r1039 on Linux 2.6.27-3 (i586), built with libpci 
2.2.4-pre4, GCC 4.1.2 20061115 (prerelease) (Debian 4.1.1-21), little endian
flashrom is free software, get the source code at http://www.flashrom.org

Calibrating delay loop... OS timer resolution is 9 usecs, 200M loops per 
second, 10 myus = 17 us, 100 myus = 231 us, 1000 myus = 1042 us, 10000 
myus = 10133 us, 36 myus = 45 us, OK.
Initializing internal programmer
No coreboot table found.
DMI string system-manufacturer: "System Manufacturer"
DMI string system-product-name: "System Name"
DMI string system-version: "System Version"
DMI string baseboard-manufacturer: "ASUSTeK Computer INC."
DMI string baseboard-product-name: "P5A-B"
DMI string baseboard-version: "REV 1.XX"
DMI string chassis-type: "Unknown"
Found chipset "ALi M1533", enabling flash write... chipset PCI ID is 
10b9:1533, OK.
This chipset supports the following protocols: Non-SPI.
Probing for SST SST29EE010, 128 KB: probe_jedec_common: id1 0x25, id2 
0xfb, id1 is normal flash content, id2 is normal flash content
No EEPROM/flash device found.
Note: flashrom can never write if the flash chip isn't found automatically.

but if I now probe for Winbond W29C011 then flashrom of course fails but 
shows the right flash ID:
flashrom -V -c W29EE011
flashrom v0.9.2-r1039 on Linux 2.6.27-3 (i586), built with libpci 
2.2.4-pre4, GCC 4.1.2 20061115 (prerelease) (Debian 4.1.1-21), little endian
flashrom is free software, get the source code at http://www.flashrom.org

Calibrating delay loop... OS timer resolution is 8 usecs, 29M loops per 
second, delay more than 10% too short (got 24% of expected delay), 
recalculating... 32M loops per second, delay more than 10% too short 
(got 25% of expected delay), recalculating... 34M loops per second, 
delay more than 10% too short (got 27% of expected delay), 
recalculating... 33M loops per second, delay more than 10% too short 
(got 25% of expected delay), recalculating... 32M loops per second, 
delay loop is unreliable, trying to continue 10 myus = 11 us, 100 myus = 
24 us, 1000 myus = 285 us, 10000 myus = 1605 us, 32 myus = 14 us, OK.
Initializing internal programmer
No coreboot table found.
DMI string system-manufacturer: "System Manufacturer"
DMI string system-product-name: "System Name"
DMI string system-version: "System Version"
DMI string baseboard-manufacturer: "ASUSTeK Computer INC."
DMI string baseboard-product-name: "P5A-B"
DMI string baseboard-version: "REV 1.XX"
DMI string chassis-type: "Unknown"
Found chipset "ALi M1533", enabling flash write... chipset PCI ID is 
10b9:1533, OK.
This chipset supports the following protocols: Non-SPI.
Probing for Winbond W29EE011, 128 KB: probe_w29ee011: id1 0xbf, id2 0x07
No EEPROM/flash device found.
Note: flashrom can never write if the flash chip isn't found automatically.

so what is obvious is the huge difference with the calibrating loop, and 
then that the probe for W29EE011 gives "id1 0xbf, id2 0x07" which is 
exactly what the datasheet from SST outlines for the SST29EE010 ...

I really wonder what goes on there sine - as -L shows - this chip is 
marked as "P R W" ...

Gün.