PS3 Dev judges has released a early version of SPIway, which is a flasher for the PS4 and is for dumping MX25L25635FMI-10G, which is the main memory of the PS4, for more information, check the link below and remember, this is a work in progress and not the final release: SPIway – Teensy++ 2.0 SPI flasher for PS4 will post more info once i get more originally posted over on ps3hax
Saw this on ps3hax to judges added support for the other 2 8pin serial flash chips too (same pinout), table extended on psdevwiki.com/ps4/