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uClinux hardware registers access

Altera_Forum
Honored Contributor II
‎04-16-2012 10:47 AM
983 Views

Hi, 

 

I'm using uClinux from nios2-linux-20090730 and I was stuck triying to manage a simple PIO from a device driver, until I noticed that autogenerated nios2.h file does not enable peripheral adresses bit 31 to '1' in order to bypass cache. 

 

Does anyone know the trick to generate a suitable nios2.h with correct no-cache adressess. 

 

thanks 

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Altera_Forum
Honored Contributor II
‎04-16-2012 11:52 AM
287 Views

ioremap_nocache()

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Altera_Forum
Honored Contributor II
‎04-16-2012 12:06 PM
287 Views

thanks dsl

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