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authorfishsoupisgood <github@madingley.org>2019-04-29 01:17:54 +0100
committerfishsoupisgood <github@madingley.org>2019-05-27 03:43:43 +0100
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tree65ca85f13617aee1dce474596800950f266a456c /roms/u-boot/doc/README.ARM-SoC
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Initial import of qemu-2.4.1HEADmaster
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+[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 arch/arm/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
+
+ $(CPUDIR)/
+
+and code that is specific to some SoC (i.e. vendor specific
+peripherals around the core) is moved into
+
+ $(CPUDIR)/$(SOC)/
+
+Thus a library/archive "$(CPUDIR)/$(SOC)/lib$(SOC).a" will be build
+and linked. Examples will be
+
+ arch/arm/cpu/arm920t/imx/
+ arch/arm/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