| [By Steven Scholz <steven.scholz@imc-berlin.de>, 16 Aug 2004] | 
 |  | 
 | Since the cpu/ directory gets clobbered with peripheral driver code I | 
 | started cleaning up cpu/arm920t. | 
 |  | 
 | I introduced the concept of Soc (system on a chip) into the ./cpu | 
 | directory. That means that code that is cpu (i.e. core) specific | 
 | resides in | 
 |  | 
 | 	cpu/$(CPU)/ | 
 |  | 
 | and code that is specific to some SoC (i.e. vendor specific | 
 | peripherals around the core) is moved into | 
 |  | 
 | 	cpu/$(CPU)/$(SOC)/ | 
 |  | 
 | Thus a library/archive "cpu/$(CPU)/$(SOC)/lib$(SOC).a" will be build | 
 | and linked. Examples will be | 
 |  | 
 | 	cpu/arm920t/imx/ | 
 | 	cpu/arm920t/s3c24x0 | 
 |  | 
 | One can select an SoC by passing the name of it to ./mkconfig just | 
 | like | 
 |  | 
 | 	@./mkconfig $(@:_config=) arm arm920t vcma9 mpl s3c24x0 | 
 |  | 
 | If there's no VENDOR field (like "mpl" in the above line) one has to | 
 | pass NULL instead: | 
 |  | 
 | 	@./mkconfig $(@:_config=) arm arm920t mx1ads NULL imx |