1 /* $OpenBSD: if_bse_acpi.c,v 1.3 2020/05/08 11:18:01 kettenis Exp $ */ 2 /* 3 * Copyright (c) 2020 Mark Kettenis 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #include <sys/param.h> 19 #include <sys/systm.h> 20 #include <sys/device.h> 21 22 #include <machine/bus.h> 23 #include <machine/intr.h> 24 25 #include <net/if.h> 26 #include <net/if_media.h> 27 #include <netinet/in.h> 28 #include <netinet/if_ether.h> 29 30 #include <dev/acpi/acpireg.h> 31 #include <dev/acpi/acpivar.h> 32 #include <dev/acpi/acpidev.h> 33 #include <dev/acpi/amltypes.h> 34 #include <dev/acpi/dsdt.h> 35 36 #include <dev/mii/miivar.h> 37 #include <dev/ic/bcmgenetvar.h> 38 39 struct bse_acpi_softc { 40 struct genet_softc sc; 41 struct acpi_softc *sc_acpi; 42 struct aml_node *sc_node; 43 }; 44 45 int bse_acpi_match(struct device *, void *, void *); 46 void bse_acpi_attach(struct device *, struct device *, void *); 47 48 struct cfattach bse_acpi_ca = { 49 sizeof(struct bse_acpi_softc), bse_acpi_match, bse_acpi_attach 50 }; 51 52 const char *bse_hids[] = { 53 "BCM6E4E", 54 NULL 55 }; 56 57 int 58 bse_acpi_match(struct device *parent, void *match, void *aux) 59 { 60 struct acpi_attach_args *aaa = aux; 61 struct cfdata *cf = match; 62 63 return acpi_matchhids(aaa, bse_hids, cf->cf_driver->cd_name); 64 } 65 66 void 67 bse_acpi_attach(struct device *parent, struct device *self, void *aux) 68 { 69 struct bse_acpi_softc *sc = (struct bse_acpi_softc *)self; 70 struct acpi_attach_args *aaa = aux; 71 char phy_mode[16] = { 0 }; 72 int error; 73 74 sc->sc_acpi = (struct acpi_softc *)parent; 75 sc->sc_node = aaa->aaa_node; 76 printf(" %s", sc->sc_node->name); 77 78 if (aaa->aaa_naddr < 1) { 79 printf(": no registers\n"); 80 return; 81 } 82 83 if (aaa->aaa_nirq < 1) { 84 printf(": no interrupt\n"); 85 return; 86 } 87 88 printf(" addr 0x%llx/0x%llx", aaa->aaa_addr[0], aaa->aaa_size[0]); 89 printf(" irq %d", aaa->aaa_irq[0]); 90 91 sc->sc.sc_bst = aaa->aaa_bst[0]; 92 sc->sc.sc_dmat = aaa->aaa_dmat; 93 94 if (bus_space_map(sc->sc.sc_bst, aaa->aaa_addr[0], aaa->aaa_size[0], 95 0, &sc->sc.sc_bsh)) { 96 printf(": can't map registers\n"); 97 return; 98 } 99 100 sc->sc.sc_ih = acpi_intr_establish(aaa->aaa_irq[0], 101 aaa->aaa_irq_flags[0], IPL_NET, genet_intr, 102 sc, sc->sc.sc_dev.dv_xname); 103 if (sc->sc.sc_ih == NULL) { 104 printf(": can't establish interrupt\n"); 105 goto unmap; 106 } 107 108 /* 109 * UEFI firmware initializes the hardware MAC address 110 * registers. Read them here before we reset the hardware. 111 */ 112 genet_lladdr_read(&sc->sc, sc->sc.sc_lladdr); 113 114 acpi_getprop(sc->sc_node, "phy-mode", phy_mode, sizeof(phy_mode)); 115 if (strcmp(phy_mode, "rgmii-id") == 0) 116 sc->sc.sc_phy_mode = GENET_PHY_MODE_RGMII_ID; 117 else if (strcmp(phy_mode, "rgmii-rxid") == 0) 118 sc->sc.sc_phy_mode = GENET_PHY_MODE_RGMII_RXID; 119 else if (strcmp(phy_mode, "rgmii-txid") == 0) 120 sc->sc.sc_phy_mode = GENET_PHY_MODE_RGMII_TXID; 121 else 122 sc->sc.sc_phy_mode = GENET_PHY_MODE_RGMII; 123 124 sc->sc.sc_phy_id = MII_PHY_ANY; 125 error = genet_attach(&sc->sc); 126 if (error) 127 goto disestablish; 128 129 return; 130 131 disestablish: 132 #ifdef notyet 133 acpi_intr_disestablish(sc->sc.sc_ih); 134 #endif 135 unmap: 136 bus_space_unmap(sc->sc.sc_bst, sc->sc.sc_bsh, aaa->aaa_size[0]); 137 } 138