as I only found pages in chinese for the ks107/108 based display HJ19264A - data sheet: http://www.huijinglcd.com/UploadFiles/201192313837201.rar
(got it on ebay for 19$) and the default GLCD (v3) ks108 panel definition needed tweaking for proper chip selection, thought to share the resulting header file to save the hassle for others.
The display is ks108 (or equivalent) based, 192x64; 3 chips with 3 CS pins that need to be set as follows:
|chip / pin||CS0||CS1||CS2|
It is implemented in the file attached. Enjoy!