Make early attrbute work here as well. Remove unreachable panic while there.

ok visa@

diff --git a/sys/arch/arm64/dev/mainbus.c b/sys/arch/arm64/dev/mainbus.c
index 1d8c8bb..a5e6bf3 100644 (file)
--- a/sys/arch/arm64/dev/mainbus.c
+++ b/sys/arch/arm64/dev/mainbus.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: mainbus.c,v 1.4 2017/04/27 10:23:19 kettenis Exp $ */
+/* $OpenBSD: mainbus.c,v 1.5 2017/04/30 13:54:00 kettenis Exp $ */
 /*
  * Copyright (c) 2016 Patrick Wildt <patrick@blueri.se>
  * Copyright (c) 2017 Mark Kettenis <kettenis@openbsd.org>
@@ -40,12 +40,14 @@ int mainbus_match_secondary(struct device *, void *, void *);
 
 struct mainbus_softc {
        struct device            sc_dev;
+       int                      sc_node;
        bus_space_tag_t          sc_iot;
        bus_dma_tag_t            sc_dmat;
        int                      sc_acells;
        int                      sc_scells;
        int                     *sc_ranges;
        int                      sc_rangeslen;
+       int                      sc_early;
 };
 
 struct cfattach mainbus_ca = {
@@ -96,18 +98,17 @@ mainbus_attach(struct device *parent, struct device *self, void *aux)
        char model[128];
        int node, len;
 
-       if ((node = OF_peer(0)) == 0)
-               panic("mainbus: no device tree");
-
        arm_intr_init_fdt();
        agtimer_init();
 
+       sc->sc_node = OF_peer(0);
        sc->sc_iot = &arm64_bs_tag;
        sc->sc_dmat = &mainbus_dma_tag;
        sc->sc_acells = OF_getpropint(OF_peer(0), "#address-cells", 1);
        sc->sc_scells = OF_getpropint(OF_peer(0), "#size-cells", 1);
 
-       if ((len = OF_getprop(node, "model", model, sizeof(model))) > 0) {
+       len = OF_getprop(sc->sc_node, "model", model, sizeof(model));
+       if (len > 0) {
                printf(": %s\n", model);
                hw_prod = malloc(len, M_DEVBUF, M_NOWAIT);
                if (hw_prod)
@@ -126,9 +127,14 @@ mainbus_attach(struct device *parent, struct device *self, void *aux)
        }
 
        /* Scan the whole tree. */
-       for (node = OF_child(node); node != 0; node = OF_peer(node))
+       sc->sc_early = 1;
+       for (node = OF_child(sc->sc_node); node != 0; node = OF_peer(node))
                mainbus_attach_node(self, node, NULL);
 
+       sc->sc_early = 0;
+       for (node = OF_child(sc->sc_node); node != 0; node = OF_peer(node))
+               mainbus_attach_node(self, node, NULL);
+       
        /* Attach secondary CPUs. */
        mainbus_attach_cpus(self, mainbus_match_secondary);
 }
@@ -204,6 +210,7 @@ mainbus_attach_node(struct device *self, int node, cfmatch_t submatch)
 int
 mainbus_match_status(struct device *parent, void *match, void *aux)
 {
+       struct mainbus_softc *sc = (struct mainbus_softc *)parent;
        struct fdt_attach_args *fa = aux;
        struct cfdata *cf = match;
        char buf[32];
@@ -212,7 +219,9 @@ mainbus_match_status(struct device *parent, void *match, void *aux)
            strcmp(buf, "disabled") == 0)
                return 0;
 
-       return (*cf->cf_attach->ca_match)(parent, match, aux);
+       if (cf->cf_loc[0] == sc->sc_early)
+               return (*cf->cf_attach->ca_match)(parent, match, aux);
+       return 0;
 }
 
 void