All boot device drivers are now lumped together in boot_drivers

src/arch/i386/scripts/i386.lds

 	*(.data.*)
 
 	/* Various tables */
-	pci_drivers = .;
-	*(.drivers.pci)
-	pci_drivers_end = .;
-	isa_drivers = .;
-	*(.drivers.isa)
-	isa_drivers_end = .;
+	boot_drivers = .;
+	*(.boot_drivers)
+	boot_drivers_end = .;
 	console_drivers = .;
 	*(.drivers.console)
 	console_drivers_end = .;