flashrom v1.0 on Linux 4.17.3-1-ARCH (x86_64)
flashrom was built with libpci 3.2.1, GCC 4.9.2, little endian
Command line (9 args): ./flashrom -VVV -p nicamd -c SST39SF020A -w ../rom/pattern.bin -o ../log/20180729/nicamd-rc2-write5.log
Using clock_gettime for delay loops (clk_id: 1, resolution: 1ns).
Initializing nicamd programmer
Found "AMD PCNET32: Am79C971 PCI 10/100 Mbps" (1022:2000, BDF 07:04.0).
===
This PCI device is UNTESTED. Please report the 'flashrom -p xxxx' output 
to flashrom@flashrom.org if it works for you. Please add the name of your
PCI device to the subject. Thank you for your help!
===
PCI header type 0x00
Requested BAR is of type I/O
PCI header type 0x00
Requested BAR is of type I/O
[nicamd] Enabling/verifying 32-bit I/O.
[nicamd] Entering STOP mode.
The following protocols are supported: Parallel.
Probing for SST SST39SF020A, 256 kB: programmer_map_flash_region: mapping SST39SF020A from 0x00000000fffc0000 to 0x0000000000000000
probe_jedec_common: id1 0xbf, id2 0xb6
Found SST flash chip "SST39SF020A" (256 kB, Parallel) on nicamd.
programmer_unmap_flash_region: unmapped 0x0000000000000000
programmer_map_flash_region: mapping SST39SF020A from 0x00000000fffc0000 to 0x0000000000000000
Reading old flash chip contents... done.
Erasing and writing flash chip... Trying erase function 0... 0x000000-0x000fff:EW, 0x001000-0x001fff:EW, 0x002000-0x002fff:EW, 0x003000-0x003fff:EW, 0x004000-0x004fff:EW, 0x005000-0x005fff:EW, 0x006000-0x006fff:EW, 0x007000-0x007fff:EW, 0x008000-0x008fff:EW, 0x009000-0x009fff:EW, 0x00a000-0x00afff:EW, 0x00b000-0x00bfff:EW, 0x00c000-0x00cfff:EW, 0x00d000-0x00dfff:EW, 0x00e000-0x00efff:EW, 0x00f000-0x00ffff:EW, 0x010000-0x010fff:EW, 0x011000-0x011fff:EW, 0x012000-0x012fff:EW, 0x013000-0x013fff:EW, 0x014000-0x014fff:EW, 0x015000-0x015fff:EW, 0x016000-0x016fff:EW, 0x017000-0x017fff:EW, 0x018000-0x018fff:EW, 0x019000-0x019fff:EW, 0x01a000-0x01afff:EW, 0x01b000-0x01bfff:EW, 0x01c000-0x01cfff:EW, 0x01d000-0x01dfff:EW, 0x01e000-0x01efff:EW, 0x01f000-0x01ffff:EW, 0x020000-0x020fff:EW, 0x021000-0x021fff:EW, 0x022000-0x022fff:EW, 0x023000-0x023fff:EW, 0x024000-0x024fff:EW, 0x025000-0x025fff:EW, 0x026000-0x026fff:EW, 0x027000-0x027fff:EW, 0x028000-0x028fff:EW, 0x029000-0x029fff:EW, 0x02a000-0x02afff:EW, 0x02b000-0x02bfff:EW, 0x02c000-0x02cfff:EW, 0x02d000-0x02dfff:EW, 0x02e000-0x02efff:EW, 0x02f000-0x02ffff:EW, 0x030000-0x030fff:EW, 0x031000-0x031fff:EW, 0x032000-0x032fff:EW, 0x033000-0x033fff:EW, 0x034000-0x034fff:EW, 0x035000-0x035fff:EW, 0x036000-0x036fff:EW, 0x037000-0x037fff:EW, 0x038000-0x038fff:EW, 0x039000-0x039fff:EW, 0x03a000-0x03afff:EW, 0x03b000-0x03bfff:EW, 0x03c000-0x03cfff:EW, 0x03d000-0x03dfff:EW, 0x03e000-0x03efff:EW, 0x03f000-0x03ffff:EW
Erase/write done.
Verifying flash... FAILED at 0x0001fd86! Expected=0x86, Found=0x85, failed byte count from 0x00000000-0x0003ffff: 0x1
Your flash chip is in an unknown state.
Please report this on IRC at chat.freenode.net (channel #flashrom) or
mail flashrom@flashrom.org, thanks!
programmer_unmap_flash_region: unmapped 0x0000000000000000