README: Update dependencies
svdtools is needed now instead of PyYAML.
Signed-off-by: Rahix <rahix@rahix.de>
         
        
        
        
        
        
        
        
        
          
patches: Include _svd tag
The _svd: tag is needed for upstream svdtools to find the corresponding
svd file for each patch.
Signed-off-by: Rahix <rahix@rahix.de>
         
        
        
          
Add basic support for ATmega644
         
        
        
        
        
        
        
          
Simplify ATtiny84 ADC patch
         
        
        
          
Extract common EXINT patch from tiny84/85
         
        
        
          
Extract common EEPROM patch from tiny84/85/88
         
        
        
          
Extract common USI patch from tiny84/85
         
        
        
          
Add PINx patch to ATtiny84
         
        
        
        
        
          
Add support for the ATtiny84
         
        
        
          
ATtiny85 TC0 patch also applies to ATtiny84
         
        
        
          
svdpatch: create fields element if register has no fields
         
        
        
          
Add atmega48p device support
         
        
        
        
        
          
Make the PINx registers writeable