I was in with ADB playing and got this from cat'ing procinfo.
system type : JZ4760
Hardware : PT701
processor : 0
cpu model : Ingenic Xburst V4.15 FPU V0.0
BogoMIPS : 527.56
wait instruction : yes
microsecond timers : no
tlb_entries : 32
extra interrupt vector : yes
hardware watchpoint : yes, count: 1, address/irw mask: [0x0fff]
ASEs implemented : mxu
shadow register sets : 1
core : 0
VCED exceptions : not available
VCEI exceptions : not available
Googling Igenic will find their site for you. Notice the XBurst in the name. They have a lot of PDF's and information on their FTP site which the website links too. Unfortunately they have great detailed PDF's on the JZ4755 but nothing on the JZ4760. Had me wondering if they took a previous design and just customized a bit for the client.
I do realize of course that a LOT can change in even a small revision of a chip. Anyway - for the 4755 they have cross build tools, linux demos, board designs, nand and usbboot instructions etc.. Even the tool chains to build for the mip's.
Man this is the best XMas present my wife has got me in years