Hi,
I am using kernel 2.6.25.20 on my Kilauea eval board (ppc405ex). I want to
access some GPIO's. I have configured my u-boot to reflect what GPIO
configuration I need. I try to access my GPIO's in my driver. When accessing
GPIO's, I get this error in the kernel <<Unable to handle kernel paging request
for data at address 0xef600800>>. 0xef600800 is the base address of GPIO in
the ppc405ex.
It looks like GPIO's are not mapped in my kernel. I have tried to add this
entry in my dts file (under POB0: opb ) but it does not work:
GPIO: g...@ef600800
{
compatible = "ibm,gpio-405ex";
reg = <ef600800 00000020>;
};
Any clues on this issues?
Thanks
Sylvain C.
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