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397 lines
10 KiB
C
397 lines
10 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright © 2021-2022 Dmitry Salychev
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* Copyright © 2022 Bjoern A. Zeeb
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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/*
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* The DPAA2 Management Complex (MC) Bus Driver (FDT-based).
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*
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* MC is a hardware resource manager which can be found in several NXP
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* SoCs (LX2160A, for example) and provides an access to the specialized
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* hardware objects used in network-oriented packet processing applications.
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*/
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/bus.h>
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#include <sys/rman.h>
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#include <sys/module.h>
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#include <sys/malloc.h>
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#include <sys/mutex.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <dev/ofw/ofw_bus.h>
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#include <dev/ofw/ofw_bus_subr.h>
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#include <dev/fdt/simplebus.h>
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#include "pcib_if.h"
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#include "pci_if.h"
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#include "ofw_bus_if.h"
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#include "dpaa2_mcp.h"
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#include "dpaa2_mc.h"
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#include "dpaa2_mc_if.h"
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struct dpaa2_mac_fdt_softc {
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uint32_t reg;
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phandle_t sfp;
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phandle_t pcs_handle;
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phandle_t phy_handle;
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char managed[64];
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char phy_conn_type[64];
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};
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#if 0
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ethernet@1 {
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compatible = "fsl,qoriq-mc-dpmac";
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reg = <0x1>;
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sfp = <0x14>;
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pcs-handle = <0x15>;
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phy-connection-type = "10gbase-r";
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managed = "in-band-status";
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};
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ethernet@3 {
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compatible = "fsl,qoriq-mc-dpmac";
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reg = <0x3>;
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phy-handle = <0x18>;
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phy-connection-type = "qsgmii";
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managed = "in-band-status";
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pcs-handle = <0x19>;
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};
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#endif
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static int
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dpaa2_mac_dev_probe(device_t dev)
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{
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phandle_t node;
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uint64_t reg;
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ssize_t s;
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node = ofw_bus_get_node(dev);
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if (!ofw_bus_node_is_compatible(node, "fsl,qoriq-mc-dpmac")) {
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device_printf(dev, "'%s' not fsl,qoriq-mc-dpmac compatible\n",
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ofw_bus_get_name(dev));
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return (ENXIO);
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}
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s = device_get_property(dev, "reg", ®, sizeof(reg),
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DEVICE_PROP_UINT32);
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if (s == -1) {
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device_printf(dev, "%s: '%s' has no 'reg' property, s %zd\n",
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__func__, ofw_bus_get_name(dev), s);
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return (ENXIO);
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}
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device_set_desc(dev, "DPAA2 MAC DEV");
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return (BUS_PROBE_DEFAULT);
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}
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static int
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dpaa2_mac_fdt_attach(device_t dev)
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{
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struct dpaa2_mac_fdt_softc *sc;
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phandle_t node;
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ssize_t s;
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sc = device_get_softc(dev);
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node = ofw_bus_get_node(dev);
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s = device_get_property(dev, "reg", &sc->reg, sizeof(sc->reg),
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DEVICE_PROP_UINT32);
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if (s == -1) {
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device_printf(dev, "Cannot find 'reg' property: %zd\n", s);
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return (ENXIO);
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}
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s = device_get_property(dev, "managed", sc->managed,
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sizeof(sc->managed), DEVICE_PROP_ANY);
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s = device_get_property(dev, "phy-connection-type", sc->phy_conn_type,
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sizeof(sc->phy_conn_type), DEVICE_PROP_ANY);
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s = device_get_property(dev, "pcs-handle", &sc->pcs_handle,
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sizeof(sc->pcs_handle), DEVICE_PROP_HANDLE);
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/* 'sfp' and 'phy-handle' are optional but we need one or the other. */
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s = device_get_property(dev, "sfp", &sc->sfp, sizeof(sc->sfp),
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DEVICE_PROP_HANDLE);
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s = device_get_property(dev, "phy-handle", &sc->phy_handle,
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sizeof(sc->phy_handle), DEVICE_PROP_HANDLE);
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if (bootverbose)
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device_printf(dev, "node %#x '%s': reg %#x sfp %#x pcs-handle "
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"%#x phy-handle %#x managed '%s' phy-conn-type '%s'\n",
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node, ofw_bus_get_name(dev),
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sc->reg, sc->sfp, sc->pcs_handle, sc->phy_handle,
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sc->managed, sc->phy_conn_type);
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return (0);
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}
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static bool
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dpaa2_mac_fdt_match_id(device_t dev, uint32_t id)
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{
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struct dpaa2_mac_fdt_softc *sc;
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if (dev == NULL)
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return (false);
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sc = device_get_softc(dev);
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if (sc->reg == id)
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return (true);
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return (false);
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}
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static device_t
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dpaa2_mac_fdt_get_phy_dev(device_t dev)
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{
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struct dpaa2_mac_fdt_softc *sc;
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if (dev == NULL)
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return (NULL);
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sc = device_get_softc(dev);
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if (sc->phy_handle == 0 && sc->sfp == 0)
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return (NULL);
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#ifdef __not_yet__ /* No sff,sfp support yet. */
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if (sc->sfp != 0) {
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device_t xdev;
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xdev = OF_device_from_xref(OF_xref_from_node(sc->sfp));
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if (xdev != NULL)
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return (xdev);
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}
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#endif
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return (OF_device_from_xref(OF_xref_from_node(sc->phy_handle)));
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}
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static device_method_t dpaa2_mac_fdt_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, dpaa2_mac_dev_probe),
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DEVMETHOD(device_attach, dpaa2_mac_fdt_attach),
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DEVMETHOD(device_detach, bus_generic_detach),
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DEVMETHOD_END
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};
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DEFINE_CLASS_0(dpaa2_mac_fdt, dpaa2_mac_fdt_driver, dpaa2_mac_fdt_methods,
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sizeof(struct dpaa2_mac_fdt_softc));
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DRIVER_MODULE(dpaa2_mac_fdt, dpaa2_mc, dpaa2_mac_fdt_driver, 0, 0);
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MODULE_DEPEND(dpaa2_mac_fdt, memac_mdio_fdt, 1, 1, 1);
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/*
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* Device interface.
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*/
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static int
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dpaa2_mc_fdt_probe(device_t dev)
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{
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if (!ofw_bus_status_okay(dev))
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return (ENXIO);
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if (!ofw_bus_is_compatible(dev, "fsl,qoriq-mc"))
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return (ENXIO);
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device_set_desc(dev, "DPAA2 Management Complex");
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return (BUS_PROBE_DEFAULT);
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}
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static int
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dpaa2_mc_fdt_probe_child(device_t bus, phandle_t child)
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{
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device_t childdev;
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/* make sure we do not aliready have a device. */
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childdev = ofw_bus_find_child_device_by_phandle(bus, child);
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if (childdev != NULL)
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return (0);
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childdev = simplebus_add_device(bus, child, 0, "dpaa2_mac_fdt", -1,
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NULL);
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if (childdev == NULL)
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return (ENXIO);
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return (device_probe_and_attach(childdev));
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}
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static int
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dpaa2_mc_fdt_attach(device_t dev)
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{
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struct dpaa2_mc_softc *sc;
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phandle_t node;
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phandle_t child;
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sc = device_get_softc(dev);
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sc->acpi_based = false;
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sc->ofw_node = ofw_bus_get_node(dev);
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bus_generic_probe(dev);
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bus_enumerate_hinted_children(dev);
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bus_generic_probe(dev);
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bus_enumerate_hinted_children(dev);
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/*
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* Attach the children represented in the device tree.
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*/
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/* fsl-mc -> dpamcs */
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node = OF_child(sc->ofw_node);
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simplebus_init(dev, node);
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/* Attach the dpmac children represented in the device tree. */
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child = ofw_bus_find_compatible(node, "fsl,qoriq-mc-dpmac");
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for (; child > 0; child = OF_peer(child)) {
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if (!ofw_bus_node_is_compatible(child, "fsl,qoriq-mc-dpmac"))
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continue;
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if (!OF_hasprop(child, "reg"))
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continue;
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if (dpaa2_mc_fdt_probe_child(dev, child) != 0)
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continue;
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}
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return (dpaa2_mc_attach(dev));
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}
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/*
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* FDT compat layer.
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*/
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static device_t
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dpaa2_mc_fdt_find_dpaa2_mac_dev(device_t dev, uint32_t id)
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{
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int devcount, error, i, len;
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device_t *devlist, mdev;
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const char *mdevname;
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error = device_get_children(dev, &devlist, &devcount);
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if (error != 0)
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return (NULL);
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for (i = 0; i < devcount; i++) {
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mdev = devlist[i];
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mdevname = device_get_name(mdev);
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if (mdevname == NULL)
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continue;
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len = strlen(mdevname);
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if (strncmp("dpaa2_mac_fdt", mdevname, len) != 0)
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continue;
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if (!device_is_attached(mdev))
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continue;
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if (dpaa2_mac_fdt_match_id(mdev, id))
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return (mdev);
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}
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return (NULL);
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}
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static int
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dpaa2_mc_fdt_get_phy_dev(device_t dev, device_t *phy_dev, uint32_t id)
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{
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device_t mdev, pdev;
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mdev = dpaa2_mc_fdt_find_dpaa2_mac_dev(dev, id);
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if (mdev == NULL) {
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device_printf(dev, "%s: error finding dpmac device with id=%u\n",
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__func__, id);
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return (ENXIO);
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}
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pdev = dpaa2_mac_fdt_get_phy_dev(mdev);
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if (pdev == NULL) {
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device_printf(dev, "%s: error getting MDIO device for dpamc %s "
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"(id=%u)\n", __func__, device_get_nameunit(mdev), id);
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return (ENXIO);
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}
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if (phy_dev != NULL)
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*phy_dev = pdev;
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if (bootverbose)
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device_printf(dev, "dpmac_id %u mdev %p (%s) pdev %p (%s)\n",
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id, mdev, device_get_nameunit(mdev),
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pdev, device_get_nameunit(pdev));
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return (0);
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}
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static const struct ofw_bus_devinfo *
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dpaa2_mc_simplebus_get_devinfo(device_t bus, device_t child)
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{
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return (OFW_BUS_GET_DEVINFO(device_get_parent(bus), child));
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}
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static device_method_t dpaa2_mc_fdt_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, dpaa2_mc_fdt_probe),
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DEVMETHOD(device_attach, dpaa2_mc_fdt_attach),
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DEVMETHOD(device_detach, dpaa2_mc_detach),
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/* Bus interface */
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DEVMETHOD(bus_get_rman, dpaa2_mc_rman),
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DEVMETHOD(bus_alloc_resource, dpaa2_mc_alloc_resource),
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DEVMETHOD(bus_adjust_resource, dpaa2_mc_adjust_resource),
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DEVMETHOD(bus_release_resource, dpaa2_mc_release_resource),
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DEVMETHOD(bus_activate_resource, dpaa2_mc_activate_resource),
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DEVMETHOD(bus_deactivate_resource, dpaa2_mc_deactivate_resource),
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DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
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DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
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/* Pseudo-PCIB interface */
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DEVMETHOD(pcib_alloc_msi, dpaa2_mc_alloc_msi),
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DEVMETHOD(pcib_release_msi, dpaa2_mc_release_msi),
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DEVMETHOD(pcib_map_msi, dpaa2_mc_map_msi),
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DEVMETHOD(pcib_get_id, dpaa2_mc_get_id),
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/* DPAA2 MC bus interface */
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DEVMETHOD(dpaa2_mc_manage_dev, dpaa2_mc_manage_dev),
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DEVMETHOD(dpaa2_mc_get_free_dev,dpaa2_mc_get_free_dev),
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DEVMETHOD(dpaa2_mc_get_dev, dpaa2_mc_get_dev),
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DEVMETHOD(dpaa2_mc_get_shared_dev, dpaa2_mc_get_shared_dev),
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DEVMETHOD(dpaa2_mc_reserve_dev, dpaa2_mc_reserve_dev),
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DEVMETHOD(dpaa2_mc_release_dev, dpaa2_mc_release_dev),
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DEVMETHOD(dpaa2_mc_get_phy_dev, dpaa2_mc_fdt_get_phy_dev),
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/* OFW/simplebus */
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DEVMETHOD(ofw_bus_get_devinfo, dpaa2_mc_simplebus_get_devinfo),
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DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat),
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DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model),
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DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name),
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DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
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DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
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DEVMETHOD_END
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};
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DEFINE_CLASS_1(dpaa2_mc, dpaa2_mc_fdt_driver, dpaa2_mc_fdt_methods,
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sizeof(struct dpaa2_mc_softc), dpaa2_mc_driver);
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DRIVER_MODULE(dpaa2_mc, simplebus, dpaa2_mc_fdt_driver, 0, 0);
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