Hi. I just successfully flashed SST49LF160C on a Wyse S10 terminal and it works fine, so it looks like the chip is fully supported. I'm letting You know, because there are some questions marks in "supported hardware" table near this one.
root@OpenWrt:/# flashrom -p internal -w /tmp/2rom.rom -c SST49LF160C
flashrom v1.0 on Linux 4.14.95 (i586) flashrom is free software, get the source code at https://flashrom.org
Calibrating delay loop... OK. No DMI table found. Found chipset "AMD CS5536". Enabling flash write... OK. Found SST flash chip "SST49LF160C" (2048 kB, LPC) mapped at physical address 0xffe00000. === This flash part has status UNTESTED for operations: ERASE WRITE The test status of this chip may have been updated in the latest development version of flashrom. If you are running the latest development version, please email a report to email@example.com if any of the above operations work correctly for you with this flash chip. Please include the flashrom log file for all operations you tested (see the man page for details), and mention which mainboard or programmer you tested in the subject line. Thanks for your help! Reading old flash chip contents... done. Erasing and writing flash chip... Erase/write done. Verifying flash... VERIFIED.