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| -rw-r--r-- | doc/README.ARM-SoC | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/doc/README.ARM-SoC b/doc/README.ARM-SoC new file mode 100644 index 0000000..0f2677f --- /dev/null +++ b/doc/README.ARM-SoC @@ -0,0 +1,31 @@ +[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 |