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head/sys/arm/allwinner/aw_if_dwc.c
| Property | Old Value | New Value |
|---|---|---|
| svn:eol-style | null | native \ No newline at end of property |
| svn:keywords | null | FreeBSD=%H \ No newline at end of property |
| svn:mime-type | null | text/plain \ No newline at end of property |
| /*- | |||||
| * Copyright (c) 2015 Luiz Otavio O Souza <loos@FreeBSD.org> | |||||
| * All rights reserved. | |||||
| * | |||||
| * 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 <sys/cdefs.h> | |||||
| __FBSDID("$FreeBSD$"); | |||||
| #include <sys/param.h> | |||||
| #include <sys/systm.h> | |||||
| #include <sys/bus.h> | |||||
| #include <sys/kernel.h> | |||||
| #include <sys/module.h> | |||||
| #include <machine/bus.h> | |||||
| #include <dev/dwc/if_dwc.h> | |||||
| #include <dev/dwc/if_dwcvar.h> | |||||
| #include <dev/ofw/ofw_bus.h> | |||||
| #include <dev/ofw/ofw_bus_subr.h> | |||||
| #include <arm/allwinner/allwinner_machdep.h> | |||||
| #include <dev/extres/clk/clk.h> | |||||
| #include <dev/extres/regulator/regulator.h> | |||||
| #include "if_dwc_if.h" | |||||
| static int | |||||
| a20_if_dwc_probe(device_t dev) | |||||
| { | |||||
| if (!ofw_bus_status_okay(dev)) | |||||
| return (ENXIO); | |||||
| if (!ofw_bus_is_compatible(dev, "allwinner,sun7i-a20-gmac")) | |||||
| return (ENXIO); | |||||
| device_set_desc(dev, "A20 Gigabit Ethernet Controller"); | |||||
| return (BUS_PROBE_DEFAULT); | |||||
| } | |||||
| static int | |||||
| a20_if_dwc_init(device_t dev) | |||||
| { | |||||
| const char *tx_parent_name; | |||||
| char *phy_type; | |||||
| clk_t clk_tx, clk_tx_parent; | |||||
| regulator_t reg; | |||||
| phandle_t node; | |||||
| int error; | |||||
| node = ofw_bus_get_node(dev); | |||||
| /* Configure PHY for MII or RGMII mode */ | |||||
| if (OF_getprop_alloc(node, "phy-mode", 1, (void **)&phy_type)) { | |||||
| error = clk_get_by_ofw_name(dev, "allwinner_gmac_tx", &clk_tx); | |||||
| if (error != 0) { | |||||
| device_printf(dev, "could not get tx clk\n"); | |||||
| return (error); | |||||
| } | |||||
| if (strcmp(phy_type, "rgmii") == 0) | |||||
| tx_parent_name = "gmac_int_tx"; | |||||
| else | |||||
| tx_parent_name = "mii_phy_tx"; | |||||
| error = clk_get_by_name(dev, tx_parent_name, &clk_tx_parent); | |||||
| if (error != 0) { | |||||
| device_printf(dev, "could not get clock '%s'\n", | |||||
| tx_parent_name); | |||||
| return (error); | |||||
| } | |||||
| error = clk_set_parent_by_clk(clk_tx, clk_tx_parent); | |||||
| if (error != 0) { | |||||
| device_printf(dev, "could not set tx clk parent\n"); | |||||
| return (error); | |||||
| } | |||||
| } | |||||
| /* Enable PHY regulator if applicable */ | |||||
| if (regulator_get_by_ofw_property(dev, "phy-supply", ®) == 0) { | |||||
| error = regulator_enable(reg); | |||||
| if (error != 0) { | |||||
| device_printf(dev, "could not enable PHY regulator\n"); | |||||
| return (error); | |||||
| } | |||||
| } | |||||
| return (0); | |||||
| } | |||||
| static int | |||||
| a20_if_dwc_mac_type(device_t dev) | |||||
| { | |||||
| return (DWC_GMAC_ALT_DESC); | |||||
| } | |||||
| static int | |||||
| a20_if_dwc_mii_clk(device_t dev) | |||||
| { | |||||
| return (GMAC_MII_CLK_150_250M_DIV102); | |||||
| } | |||||
| static device_method_t a20_dwc_methods[] = { | |||||
| DEVMETHOD(device_probe, a20_if_dwc_probe), | |||||
| DEVMETHOD(if_dwc_init, a20_if_dwc_init), | |||||
| DEVMETHOD(if_dwc_mac_type, a20_if_dwc_mac_type), | |||||
| DEVMETHOD(if_dwc_mii_clk, a20_if_dwc_mii_clk), | |||||
| DEVMETHOD_END | |||||
| }; | |||||
| static devclass_t a20_dwc_devclass; | |||||
| extern driver_t dwc_driver; | |||||
| DEFINE_CLASS_1(dwc, a20_dwc_driver, a20_dwc_methods, sizeof(struct dwc_softc), | |||||
| dwc_driver); | |||||
| DRIVER_MODULE(a20_dwc, simplebus, a20_dwc_driver, a20_dwc_devclass, 0, 0); | |||||
| MODULE_DEPEND(a20_dwc, dwc, 1, 1, 1); | |||||