Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

LCD 16207 + NIOS2 MMU - Kernel Panic

I'm working on tring to run LCD 16207 driver on NIOS2 with MMU. The driver which is included in kernel and relased on this website: http://www.alterawiki.com/wiki/lcd_16207 is I mean for NIOS2 withou...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

The 'Unable to handle kernel paging request' error sounds like you are running a system with an mmu.

A driver written for an mmu-less system won't work (actually, I'm not sure that one works anyway since that write probably need to bypass any data cache as well).

You need to map the physical addresses into the virtual address space.