d3be981999
Rework the dTSEC and FMan drivers to be more like a full bus relationship, so that dtsec can use bus_alloc_resource() instead of trying to handle the offset from the dts. This required taking some code from the sparc64 ebus driver to allow subdividing the fman region for the dTSEC devices.
236 lines
6.4 KiB
C
236 lines
6.4 KiB
C
/*-
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* Copyright (c) 2012 Semihalf.
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* All rights reserved.
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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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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/bus.h>
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#include <sys/module.h>
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#include <sys/rman.h>
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#include <sys/socket.h>
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#include <machine/bus.h>
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#include <powerpc/mpc85xx/mpc85xx.h>
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#include <net/if.h>
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#include <net/if_media.h>
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#include <dev/mii/mii.h>
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#include <dev/mii/miivar.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/ofw/openfirm.h>
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#include "miibus_if.h"
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#include <contrib/ncsw/inc/Peripherals/fm_port_ext.h>
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#include <contrib/ncsw/inc/xx_ext.h>
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#include "if_dtsec.h"
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#include "fman.h"
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static int dtsec_fdt_probe(device_t dev);
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static int dtsec_fdt_attach(device_t dev);
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static device_method_t dtsec_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, dtsec_fdt_probe),
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DEVMETHOD(device_attach, dtsec_fdt_attach),
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DEVMETHOD(device_detach, dtsec_detach),
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DEVMETHOD(device_shutdown, dtsec_shutdown),
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DEVMETHOD(device_suspend, dtsec_suspend),
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DEVMETHOD(device_resume, dtsec_resume),
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/* Bus interface */
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DEVMETHOD(bus_print_child, bus_generic_print_child),
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DEVMETHOD(bus_driver_added, bus_generic_driver_added),
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/* MII interface */
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DEVMETHOD(miibus_readreg, dtsec_miibus_readreg),
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DEVMETHOD(miibus_writereg, dtsec_miibus_writereg),
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DEVMETHOD(miibus_statchg, dtsec_miibus_statchg),
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{ 0, 0 }
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};
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static driver_t dtsec_driver = {
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"dtsec",
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dtsec_methods,
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sizeof(struct dtsec_softc),
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};
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static devclass_t dtsec_devclass;
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DRIVER_MODULE(dtsec, fman, dtsec_driver, dtsec_devclass, 0, 0);
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DRIVER_MODULE(miibus, dtsec, miibus_driver, miibus_devclass, 0, 0);
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MODULE_DEPEND(dtsec, ether, 1, 1, 1);
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MODULE_DEPEND(dtsec, miibus, 1, 1, 1);
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static int
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dtsec_fdt_probe(device_t dev)
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{
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if (!ofw_bus_is_compatible(dev, "fsl,fman-dtsec") &&
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!ofw_bus_is_compatible(dev, "fsl,fman-xgec"))
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return (ENXIO);
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device_set_desc(dev, "Freescale Data Path Triple Speed Ethernet "
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"Controller");
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return (BUS_PROBE_DEFAULT);
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}
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static int
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find_mdio(phandle_t phy_node, device_t mac, device_t *mdio_dev)
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{
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device_t bus;
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while (phy_node > 0) {
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if (ofw_bus_node_is_compatible(phy_node, "fsl,fman-mdio"))
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break;
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phy_node = OF_parent(phy_node);
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}
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if (phy_node <= 0)
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return (ENOENT);
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bus = device_get_parent(mac);
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*mdio_dev = ofw_bus_find_child_device_by_phandle(bus, phy_node);
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return (0);
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}
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static int
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dtsec_fdt_attach(device_t dev)
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{
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struct dtsec_softc *sc;
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phandle_t enet_node, phy_node;
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phandle_t fman_rxtx_node[2];
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char phy_type[6];
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pcell_t fman_tx_cell;
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int rid;
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sc = device_get_softc(dev);
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enet_node = ofw_bus_get_node(dev);
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if (OF_getprop(enet_node, "local-mac-address",
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(void *)sc->sc_mac_addr, 6) == -1) {
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device_printf(dev,
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"Could not load local-mac-addr property from DTS\n");
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return (ENXIO);
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}
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/* Get link speed */
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if (ofw_bus_is_compatible(dev, "fsl,fman-dtsec") != 0)
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sc->sc_eth_dev_type = ETH_DTSEC;
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else if (ofw_bus_is_compatible(dev, "fsl,fman-xgec") != 0)
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sc->sc_eth_dev_type = ETH_10GSEC;
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else
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return(ENXIO);
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/* Get MAC memory offset in SoC */
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rid = 0;
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sc->sc_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
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if (sc->sc_mem == NULL)
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return (ENXIO);
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/* Get PHY address */
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if (OF_getprop(enet_node, "phy-handle", (void *)&phy_node,
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sizeof(phy_node)) <= 0)
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return (ENXIO);
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phy_node = OF_instance_to_package(phy_node);
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if (OF_getprop(phy_node, "reg", (void *)&sc->sc_phy_addr,
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sizeof(sc->sc_phy_addr)) <= 0)
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return (ENXIO);
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if (find_mdio(phy_node, dev, &sc->sc_mdio) != 0)
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return (ENXIO);
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/* Get PHY connection type */
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if (OF_getprop(enet_node, "phy-connection-type", (void *)phy_type,
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sizeof(phy_type)) <= 0)
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return (ENXIO);
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if (!strcmp(phy_type, "sgmii"))
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sc->sc_mac_enet_mode = e_ENET_MODE_SGMII_1000;
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else if (!strcmp(phy_type, "rgmii"))
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sc->sc_mac_enet_mode = e_ENET_MODE_RGMII_1000;
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else if (!strcmp(phy_type, "xgmii"))
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/* We set 10 Gigabit mode flag however we don't support it */
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sc->sc_mac_enet_mode = e_ENET_MODE_XGMII_10000;
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else
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return (ENXIO);
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/* Get RX/TX port handles */
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if (OF_getprop(enet_node, "fsl,fman-ports", (void *)fman_rxtx_node,
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sizeof(fman_rxtx_node)) <= 0)
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return (ENXIO);
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if (fman_rxtx_node[0] == 0)
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return (ENXIO);
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if (fman_rxtx_node[1] == 0)
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return (ENXIO);
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fman_rxtx_node[0] = OF_instance_to_package(fman_rxtx_node[0]);
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fman_rxtx_node[1] = OF_instance_to_package(fman_rxtx_node[1]);
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if (ofw_bus_node_is_compatible(fman_rxtx_node[0],
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"fsl,fman-v2-port-rx") == 0)
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return (ENXIO);
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if (ofw_bus_node_is_compatible(fman_rxtx_node[1],
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"fsl,fman-v2-port-tx") == 0)
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return (ENXIO);
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/* Get RX port HW id */
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if (OF_getprop(fman_rxtx_node[0], "reg", (void *)&sc->sc_port_rx_hw_id,
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sizeof(sc->sc_port_rx_hw_id)) <= 0)
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return (ENXIO);
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/* Get TX port HW id */
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if (OF_getprop(fman_rxtx_node[1], "reg", (void *)&sc->sc_port_tx_hw_id,
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sizeof(sc->sc_port_tx_hw_id)) <= 0)
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return (ENXIO);
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if (OF_getprop(fman_rxtx_node[1], "cell-index", &fman_tx_cell,
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sizeof(fman_tx_cell)) <= 0)
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return (ENXIO);
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/* Get QMan channel */
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sc->sc_port_tx_qman_chan = fman_qman_channel_id(device_get_parent(dev),
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fman_tx_cell);
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return (dtsec_attach(dev));
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}
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