Enabling Text mode on Graphics

I am working on the Graphic Card 69030(asiliant driver) porting on MIPS Board. I need to implement the Text support on Graphics. I am implementing the Framebuffer concept, where I have taken the reference of the BEBOX Frame Buffer implementation concept. Will the card supports the Text mode on Graphics and how to implement in NetBSD? And when I call wsdisplay_cnattach() from the attach function of FrameBuffer (This is done after the initialization of the Hardware), the code will hung in cn_tab of (/dev/wscons/wdisplay.c). At this position the card will get detected and only able to display some color (which varies every time). This color I am not able to change also. The Hardware is just getting initialized, but it is not allowing me to write anything with respect to color or Text. Please put some light on it. what are the factors do I need to consider to enable the Text mode on Grahics mode/video mode.