dwxe(4) diff for testing

[Mark Kettenis]

Driver for the onboard Ethernet on many boards with an Allwinner SoCs.
If you have one, please make sure your network connection still works
after applying this patch.

Thanks,

Mark


Index: dev/fdt/if_dwxe.c
===================================================================
RCS file: /cvs/src/sys/dev/fdt/if_dwxe.c,v
retrieving revision 1.23
diff -u -p -r1.23 if_dwxe.c
--- dev/fdt/if_dwxe.c   10 Nov 2023 15:51:19 -0000      1.23
+++ dev/fdt/if_dwxe.c   16 Feb 2024 23:49:02 -0000
@@ -374,8 +374,10 @@ dwxe_attach(struct device *parent, struc
 {
        struct dwxe_softc *sc = (void *)self;
        struct fdt_attach_args *faa = aux;
+       char phy_mode[16] = { 0 };
        struct ifnet *ifp;
        uint32_t phy;
+       int mii_flags = 0;
        int node;
 
        sc->sc_node = faa->fa_node;
@@ -387,6 +389,16 @@ dwxe_attach(struct device *parent, struc
        }
        sc->sc_dmat = faa->fa_dmat;
 
+       OF_getprop(faa->fa_node, "phy-mode", phy_mode, sizeof(phy_mode));
+       if (strcmp(phy_mode, "rgmii") == 0)
+               mii_flags |= MIIF_SETDELAY;
+       else if (strcmp(phy_mode, "rgmii-rxid") == 0)
+               mii_flags |= MIIF_SETDELAY | MIIF_RXID;
+       else if (strcmp(phy_mode, "rgmii-txid") == 0)
+               mii_flags |= MIIF_SETDELAY | MIIF_TXID;
+       else if (strcmp(phy_mode, "rgmii-id") == 0)
+               mii_flags |= MIIF_SETDELAY | MIIF_RXID | MIIF_TXID;
+
        /* Lookup PHY. */
        phy = OF_getpropint(faa->fa_node, "phy-handle", 0);
        node = OF_getnodebyphandle(phy);
@@ -394,6 +406,7 @@ dwxe_attach(struct device *parent, struc
                sc->sc_phyloc = OF_getpropint(node, "reg", MII_PHY_ANY);
        else
                sc->sc_phyloc = MII_PHY_ANY;
+       sc->sc_mii.mii_node = node;
 
        sc->sc_clk = clock_get_frequency(faa->fa_node, "stmmaceth");
        if (sc->sc_clk > 160000000)
@@ -435,7 +448,7 @@ dwxe_attach(struct device *parent, struc
        ifmedia_init(&sc->sc_media, 0, dwxe_media_change, dwxe_media_status);
 
        mii_attach(self, &sc->sc_mii, 0xffffffff, sc->sc_phyloc,
-           MII_OFFSET_ANY, MIIF_NOISOLATE);
+           MII_OFFSET_ANY, MIIF_NOISOLATE | mii_flags);
        if (LIST_FIRST(&sc->sc_mii.mii_phys) == NULL) {
                printf("%s: no PHY found!\n", sc->sc_dev.dv_xname);
                ifmedia_add(&sc->sc_media, IFM_ETHER|IFM_MANUAL, 0, NULL);