The driver source tree has been reorganized to reduce the existing driver components (DRV and DRV_F) to one generic DRV component. To make this possible, the drv_f source trees have been moved to the drv source tree.
This change is indicated in Figure 11-1 and Figure 11-2.
The src/family Imakefile is able to select the correct family-dependent tree at compile time, for example:
#define IHaveSubdirs SUBDIRS_x86 = x86 SUBDIRS_ppc60x = powerpc SUBDIRS_mpc860 = powerpc SUBDIRS_mpc8260= powerpc SUBDIRS_usparc = usparc SUBDIRS = $(SUBDIRS_$(FAMILY))