/*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright © 2021-2022 Dmitry Salychev * Copyright © 2022 Bjoern A. Zeeb * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include /* * The DPAA2 Management Complex (MC) Bus Driver (FDT-based). * * MC is a hardware resource manager which can be found in several NXP * SoCs (LX2160A, for example) and provides an access to the specialized * hardware objects used in network-oriented packet processing applications. */ #include #include #include #include #include #include #include #include #include #include #include #include #include "pcib_if.h" #include "pci_if.h" #include "ofw_bus_if.h" #include "dpaa2_mcp.h" #include "dpaa2_mc.h" #include "dpaa2_mc_if.h" struct dpaa2_mac_fdt_softc { uint32_t reg; phandle_t sfp; phandle_t pcs_handle; phandle_t phy_handle; char managed[64]; char phy_conn_type[64]; }; #if 0 ethernet@1 { compatible = "fsl,qoriq-mc-dpmac"; reg = <0x1>; sfp = <0x14>; pcs-handle = <0x15>; phy-connection-type = "10gbase-r"; managed = "in-band-status"; }; ethernet@3 { compatible = "fsl,qoriq-mc-dpmac"; reg = <0x3>; phy-handle = <0x18>; phy-connection-type = "qsgmii"; managed = "in-band-status"; pcs-handle = <0x19>; }; #endif static int dpaa2_mac_dev_probe(device_t dev) { phandle_t node; uint64_t reg; ssize_t s; node = ofw_bus_get_node(dev); if (!ofw_bus_node_is_compatible(node, "fsl,qoriq-mc-dpmac")) { device_printf(dev, "'%s' not fsl,qoriq-mc-dpmac compatible\n", ofw_bus_get_name(dev)); return (ENXIO); } s = device_get_property(dev, "reg", ®, sizeof(reg), DEVICE_PROP_UINT32); if (s == -1) { device_printf(dev, "%s: '%s' has no 'reg' property, s %zd\n", __func__, ofw_bus_get_name(dev), s); return (ENXIO); } device_set_desc(dev, "DPAA2 MAC DEV"); return (BUS_PROBE_DEFAULT); } static int dpaa2_mac_fdt_attach(device_t dev) { struct dpaa2_mac_fdt_softc *sc; phandle_t node; ssize_t s; sc = device_get_softc(dev); node = ofw_bus_get_node(dev); s = device_get_property(dev, "reg", &sc->reg, sizeof(sc->reg), DEVICE_PROP_UINT32); if (s == -1) { device_printf(dev, "Cannot find 'reg' property: %zd\n", s); return (ENXIO); } s = device_get_property(dev, "managed", sc->managed, sizeof(sc->managed), DEVICE_PROP_ANY); s = device_get_property(dev, "phy-connection-type", sc->phy_conn_type, sizeof(sc->phy_conn_type), DEVICE_PROP_ANY); s = device_get_property(dev, "pcs-handle", &sc->pcs_handle, sizeof(sc->pcs_handle), DEVICE_PROP_HANDLE); /* 'sfp' and 'phy-handle' are optional but we need one or the other. */ s = device_get_property(dev, "sfp", &sc->sfp, sizeof(sc->sfp), DEVICE_PROP_HANDLE); s = device_get_property(dev, "phy-handle", &sc->phy_handle, sizeof(sc->phy_handle), DEVICE_PROP_HANDLE); if (bootverbose) device_printf(dev, "node %#x '%s': reg %#x sfp %#x pcs-handle " "%#x phy-handle %#x managed '%s' phy-conn-type '%s'\n", node, ofw_bus_get_name(dev), sc->reg, sc->sfp, sc->pcs_handle, sc->phy_handle, sc->managed, sc->phy_conn_type); return (0); } static bool dpaa2_mac_fdt_match_id(device_t dev, uint32_t id) { struct dpaa2_mac_fdt_softc *sc; if (dev == NULL) return (false); sc = device_get_softc(dev); if (sc->reg == id) return (true); return (false); } static device_t dpaa2_mac_fdt_get_phy_dev(device_t dev) { struct dpaa2_mac_fdt_softc *sc; if (dev == NULL) return (NULL); sc = device_get_softc(dev); if (sc->phy_handle == 0 && sc->sfp == 0) return (NULL); #ifdef __not_yet__ /* No sff,sfp support yet. */ if (sc->sfp != 0) { device_t xdev; xdev = OF_device_from_xref(OF_xref_from_node(sc->sfp)); if (xdev != NULL) return (xdev); } #endif return (OF_device_from_xref(OF_xref_from_node(sc->phy_handle))); } static device_method_t dpaa2_mac_fdt_methods[] = { /* Device interface */ DEVMETHOD(device_probe, dpaa2_mac_dev_probe), DEVMETHOD(device_attach, dpaa2_mac_fdt_attach), DEVMETHOD(device_detach, bus_generic_detach), DEVMETHOD_END }; DEFINE_CLASS_0(dpaa2_mac_fdt, dpaa2_mac_fdt_driver, dpaa2_mac_fdt_methods, sizeof(struct dpaa2_mac_fdt_softc)); DRIVER_MODULE(dpaa2_mac_fdt, dpaa2_mc, dpaa2_mac_fdt_driver, 0, 0); MODULE_DEPEND(dpaa2_mac_fdt, memac_mdio_fdt, 1, 1, 1); /* * Device interface. */ static int dpaa2_mc_fdt_probe(device_t dev) { if (!ofw_bus_status_okay(dev)) return (ENXIO); if (!ofw_bus_is_compatible(dev, "fsl,qoriq-mc")) return (ENXIO); device_set_desc(dev, "DPAA2 Management Complex"); return (BUS_PROBE_DEFAULT); } static int dpaa2_mc_fdt_probe_child(device_t bus, phandle_t child) { device_t childdev; /* make sure we do not aliready have a device. */ childdev = ofw_bus_find_child_device_by_phandle(bus, child); if (childdev != NULL) return (0); childdev = simplebus_add_device(bus, child, 0, "dpaa2_mac_fdt", -1, NULL); if (childdev == NULL) return (ENXIO); return (device_probe_and_attach(childdev)); } static int dpaa2_mc_fdt_attach(device_t dev) { struct dpaa2_mc_softc *sc; phandle_t node; phandle_t child; sc = device_get_softc(dev); sc->acpi_based = false; sc->ofw_node = ofw_bus_get_node(dev); bus_generic_probe(dev); bus_enumerate_hinted_children(dev); bus_generic_probe(dev); bus_enumerate_hinted_children(dev); /* * Attach the children represented in the device tree. */ /* fsl-mc -> dpamcs */ node = OF_child(sc->ofw_node); simplebus_init(dev, node); /* Attach the dpmac children represented in the device tree. */ child = ofw_bus_find_compatible(node, "fsl,qoriq-mc-dpmac"); for (; child > 0; child = OF_peer(child)) { if (!ofw_bus_node_is_compatible(child, "fsl,qoriq-mc-dpmac")) continue; if (!OF_hasprop(child, "reg")) continue; if (dpaa2_mc_fdt_probe_child(dev, child) != 0) continue; } return (dpaa2_mc_attach(dev)); } /* * FDT compat layer. */ static device_t dpaa2_mc_fdt_find_dpaa2_mac_dev(device_t dev, uint32_t id) { int devcount, error, i, len; device_t *devlist, mdev; const char *mdevname; error = device_get_children(dev, &devlist, &devcount); if (error != 0) return (NULL); for (i = 0; i < devcount; i++) { mdev = devlist[i]; mdevname = device_get_name(mdev); if (mdevname == NULL) continue; len = strlen(mdevname); if (strncmp("dpaa2_mac_fdt", mdevname, len) != 0) continue; if (!device_is_attached(mdev)) continue; if (dpaa2_mac_fdt_match_id(mdev, id)) return (mdev); } return (NULL); } static int dpaa2_mc_fdt_get_phy_dev(device_t dev, device_t *phy_dev, uint32_t id) { device_t mdev, pdev; mdev = dpaa2_mc_fdt_find_dpaa2_mac_dev(dev, id); if (mdev == NULL) { device_printf(dev, "%s: error finding dpmac device with id=%u\n", __func__, id); return (ENXIO); } pdev = dpaa2_mac_fdt_get_phy_dev(mdev); if (pdev == NULL) { device_printf(dev, "%s: error getting MDIO device for dpamc %s " "(id=%u)\n", __func__, device_get_nameunit(mdev), id); return (ENXIO); } if (phy_dev != NULL) *phy_dev = pdev; if (bootverbose) device_printf(dev, "dpmac_id %u mdev %p (%s) pdev %p (%s)\n", id, mdev, device_get_nameunit(mdev), pdev, device_get_nameunit(pdev)); return (0); } static const struct ofw_bus_devinfo * dpaa2_mc_simplebus_get_devinfo(device_t bus, device_t child) { return (OFW_BUS_GET_DEVINFO(device_get_parent(bus), child)); } static device_method_t dpaa2_mc_fdt_methods[] = { /* Device interface */ DEVMETHOD(device_probe, dpaa2_mc_fdt_probe), DEVMETHOD(device_attach, dpaa2_mc_fdt_attach), DEVMETHOD(device_detach, dpaa2_mc_detach), /* Bus interface */ DEVMETHOD(bus_alloc_resource, dpaa2_mc_alloc_resource), DEVMETHOD(bus_adjust_resource, dpaa2_mc_adjust_resource), DEVMETHOD(bus_release_resource, dpaa2_mc_release_resource), DEVMETHOD(bus_activate_resource, dpaa2_mc_activate_resource), DEVMETHOD(bus_deactivate_resource, dpaa2_mc_deactivate_resource), DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), /* Pseudo-PCIB interface */ DEVMETHOD(pcib_alloc_msi, dpaa2_mc_alloc_msi), DEVMETHOD(pcib_release_msi, dpaa2_mc_release_msi), DEVMETHOD(pcib_map_msi, dpaa2_mc_map_msi), DEVMETHOD(pcib_get_id, dpaa2_mc_get_id), /* DPAA2 MC bus interface */ DEVMETHOD(dpaa2_mc_manage_dev, dpaa2_mc_manage_dev), DEVMETHOD(dpaa2_mc_get_free_dev,dpaa2_mc_get_free_dev), DEVMETHOD(dpaa2_mc_get_dev, dpaa2_mc_get_dev), DEVMETHOD(dpaa2_mc_get_shared_dev, dpaa2_mc_get_shared_dev), DEVMETHOD(dpaa2_mc_reserve_dev, dpaa2_mc_reserve_dev), DEVMETHOD(dpaa2_mc_release_dev, dpaa2_mc_release_dev), DEVMETHOD(dpaa2_mc_get_phy_dev, dpaa2_mc_fdt_get_phy_dev), /* OFW/simplebus */ DEVMETHOD(ofw_bus_get_devinfo, dpaa2_mc_simplebus_get_devinfo), DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat), DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model), DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name), DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node), DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type), DEVMETHOD_END }; DEFINE_CLASS_1(dpaa2_mc, dpaa2_mc_fdt_driver, dpaa2_mc_fdt_methods, sizeof(struct dpaa2_mc_softc), dpaa2_mc_driver); DRIVER_MODULE(dpaa2_mc, simplebus, dpaa2_mc_fdt_driver, 0, 0);