diff options
Diffstat (limited to 'qemu/roms/u-boot/doc/README.ARM-SoC')
| -rw-r--r-- | qemu/roms/u-boot/doc/README.ARM-SoC | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/doc/README.ARM-SoC b/qemu/roms/u-boot/doc/README.ARM-SoC new file mode 100644 index 000000000..d6bd62488 --- /dev/null +++ b/qemu/roms/u-boot/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 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 |