The following OpenSolaris files implement use of Tomatillo:
usr/src/cmd/fm/eversholt/files/sparc/sun4u/Makefile
usr/src/uts/sun4u/cpu/us3_jalapeno_asm.s
usr/src/uts/sun4u/io/pci/pci_dma.c
usr/src/uts/sun4u/io/pci/pci_intr.c
usr/src/uts/sun4u/io/pci/pci_space.c
usr/src/uts/sun4u/io/pci/pcisch_asm.s
usr/src/uts/sun4u/io/pci/pcisch.c
usr/src/uts/sun4u/io/ppm/jbusppm.c
usr/src/uts/sun4u/sys/pci/pci_cb.h
usr/src/uts/sun4u/sys/pci/pci_iommu.h
usr/src/uts/sun4u/sys/pci/pci_pbm.h
usr/src/uts/sun4u/sys/pci/pci_space.h
usr/src/uts/sun4u/sys/pci/pcisch_asm.h
usr/src/uts/sun4u/sys/pci/pcisch.h
(This list kindly provided by James McPherson)