return 0;
        i2c_inited = 1;
 
-       if (!machine_is(powermac))
-               return 0;
-
        /* Probe keywest-i2c busses */
        kw_i2c_probe();
 
 
        return 0;
 }
-arch_initcall(pmac_i2c_init);
+machine_arch_initcall(powermac, pmac_i2c_init);
 
 /* Since pmac_i2c_init can be called too early for the platform device
  * registration, we need to do it at a later time. In our case, subsys
 
        return 0;
 }
-subsys_initcall(pmac_i2c_create_platform_devices);
+machine_subsys_initcall(powermac, pmac_i2c_create_platform_devices);
 
        sysdev_driver_register(&pmacpic_sysclass, &driver_pmacpic);
        return 0;
 }
-
-subsys_initcall(init_pmacpic_sysfs);
+machine_subsys_initcall(powermac, init_pmacpic_sysfs);
 
 
 
 static int pmac_late_init(void)
 {
-       if (!machine_is(powermac))
-               return -ENODEV;
-
        initializing = 0;
        /* this is udbg (which is __init) and we can later use it during
         * cpu hotplug (in smp_core99_kick_cpu) */
        ppc_md.progress = NULL;
        return 0;
 }
-
-late_initcall(pmac_late_init);
+machine_late_initcall(powermac, pmac_late_init);
 
 /*
  * This is __init_refok because we check for "initializing" before
        if (machine_is(chrp))
                return -1;
 
-       if (!machine_is(powermac))
-               return 0;
-
        np = of_find_node_by_name(NULL, "valkyrie");
        if (np)
                of_platform_device_create(np, "valkyrie", NULL);
 
        return 0;
 }
-
-device_initcall(pmac_declare_of_platform_devices);
+machine_device_initcall(powermac, pmac_declare_of_platform_devices);
 
 /*
  * Called very early, MMU is off, device-tree isn't unflattened