|  | [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 |