Author: manu
Date: Wed Feb 27 20:52:35 2019
New Revision: 344633
URL: https://svnweb.freebsd.org/changeset/base/344633
Log:
usb_nop_xceiv: Add support for this pseudo device
This is a "fake" phy that handle regulator, clocks and reset gpio.
Only clock and regulator is supported for now.
Sponsored-by: Rubicon Communications, LCC ("Netgate")
Added:
head/sys/dev/usb/controller/usb_nop_xceiv.c (contents, props changed)
Modified:
head/sys/conf/files.arm64
Modified: head/sys/conf/files.arm64
==============================================================================
--- head/sys/conf/files.arm64 Wed Feb 27 20:24:23 2019 (r344632)
+++ head/sys/conf/files.arm64 Wed Feb 27 20:52:35 2019 (r344633)
@@ -234,6 +234,7 @@ dev/usb/controller/generic_ehci.c optional ehci acpi
dev/usb/controller/generic_ohci.c optional ohci fdt
dev/usb/controller/generic_usb_if.m optional ohci fdt
dev/usb/controller/xhci_mv.c optional xhci_mv fdt
+dev/usb/controller/usb_nop_xceiv.c optional fdt ext_resources
dev/vnic/mrml_bridge.c optional vnic fdt
dev/vnic/nic_main.c optional vnic pci
dev/vnic/nicvf_main.c optional vnic pci pci_iov
Added: head/sys/dev/usb/controller/usb_nop_xceiv.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/dev/usb/controller/usb_nop_xceiv.c Wed Feb 27 20:52:35 2019
(r344633)
@@ -0,0 +1,211 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2019 Rubicon Communications, LLC (Netgate)
+ *
+ * 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 <sys/rman.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+
+#include <machine/bus.h>
+
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+
+#include <dev/extres/clk/clk.h>
+#include <dev/extres/regulator/regulator.h>
+#include <dev/extres/phy/phy_usb.h>
+
+#include "phynode_if.h"
+
+struct usb_nop_xceiv_softc {
+ device_t dev;
+ regulator_t vcc_supply;
+ clk_t clk;
+ uint32_t clk_freq;
+};
+
+static struct ofw_compat_data compat_data[] = {
+ {"usb-nop-xceiv", 1},
+ {NULL, 0}
+};
+
+/* Phy class and methods. */
+static int usb_nop_xceiv_phy_enable(struct phynode *phy, bool enable);
+static phynode_usb_method_t usb_nop_xceiv_phynode_methods[] = {
+ PHYNODEMETHOD(phynode_enable, usb_nop_xceiv_phy_enable),
+
+ PHYNODEMETHOD_END
+};
+DEFINE_CLASS_1(usb_nop_xceiv_phynode, usb_nop_xceiv_phynode_class,
+ usb_nop_xceiv_phynode_methods,
+ sizeof(struct phynode_usb_sc), phynode_usb_class);
+
+static int
+usb_nop_xceiv_phy_enable(struct phynode *phynode, bool enable)
+{
+ struct usb_nop_xceiv_softc *sc;
+ device_t dev;
+ intptr_t phy;
+ int error;
+
+ dev = phynode_get_device(phynode);
+ phy = phynode_get_id(phynode);
+ sc = device_get_softc(dev);
+
+ if (phy != 0)
+ return (ERANGE);
+
+ /* Enable the phy clock */
+ if (sc->clk_freq != 0) {
+ if (enable) {
+ error = clk_set_freq(sc->clk, sc->clk_freq,
+ CLK_SET_ROUND_ANY);
+ if (error != 0) {
+ device_printf(dev, "Cannot set clock to
%dMhz\n",
+ sc->clk_freq);
+ goto fail;
+ }
+
+ error = clk_enable(sc->clk);
+ } else
+ error = clk_disable(sc->clk);
+
+ if (error != 0) {
+ device_printf(dev, "Cannot %sable the clock\n",
+ enable ? "En" : "Dis");
+ goto fail;
+ }
+ }
+ if (sc->vcc_supply) {
+ if (enable)
+ error = regulator_enable(sc->vcc_supply);
+ else
+ error = regulator_disable(sc->vcc_supply);
+ if (error != 0) {
+ device_printf(dev, "Cannot %sable the regulator\n",
+ enable ? "En" : "Dis");
+ goto fail;
+ }
+ }
+
+ return (0);
+
+fail:
+ return (ENXIO);
+}
+
+static int
+usb_nop_xceiv_probe(device_t dev)
+{
+
+ if (!ofw_bus_status_okay(dev))
+ return (ENXIO);
+
+ if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
+ return (ENXIO);
+
+ device_set_desc(dev, "USB NOP PHY");
+ return (BUS_PROBE_DEFAULT);
+}
+
+static int
+usb_nop_xceiv_attach(device_t dev)
+{
+ struct usb_nop_xceiv_softc *sc;
+ struct phynode *phynode;
+ struct phynode_init_def phy_init;
+ phandle_t node;
+ int error;
+
+ sc = device_get_softc(dev);
+ sc->dev = dev;
+ node = ofw_bus_get_node(dev);
+
+ /* Parse the optional properties */
+ OF_getencprop(node, "clock-frequency", &sc->clk_freq, sizeof(uint32_t));
+
+ error = clk_get_by_ofw_name(dev, node, "main_clk", &sc->clk);
+ if (error != 0 && sc->clk_freq != 0) {
+ device_printf(dev, "clock property is mandatory if
clock-frequency is present\n");
+ return (ENXIO);
+ }
+
+ regulator_get_by_ofw_property(dev, node, "vcc-supply", &sc->vcc_supply);
+
+ phy_init.id = 0;
+ phy_init.ofw_node = node;
+ phynode = phynode_create(dev, &usb_nop_xceiv_phynode_class,
+ &phy_init);
+ if (phynode == NULL) {
+ device_printf(dev, "failed to create USB NOP PHY\n");
+ return (ENXIO);
+ }
+ if (phynode_register(phynode) == NULL) {
+ device_printf(dev, "failed to create USB NOP PHY\n");
+ return (ENXIO);
+ }
+
+ OF_device_register_xref(OF_xref_from_node(node), dev);
+
+ return (0);
+}
+
+static int
+usb_nop_xceiv_detach(device_t dev)
+{
+
+ return (EBUSY);
+}
+
+static device_method_t usb_nop_xceiv_methods[] = {
+ /* Device interface */
+ DEVMETHOD(device_probe, usb_nop_xceiv_probe),
+ DEVMETHOD(device_attach, usb_nop_xceiv_attach),
+ DEVMETHOD(device_detach, usb_nop_xceiv_detach),
+
+ DEVMETHOD_END
+};
+
+static devclass_t usb_nop_xceiv_devclass;
+
+static driver_t usb_nop_xceiv_driver = {
+ "usb_nop_xceiv",
+ usb_nop_xceiv_methods,
+ sizeof(struct usb_nop_xceiv_softc),
+};
+
+EARLY_DRIVER_MODULE(usb_nop_xceiv, simplebus, usb_nop_xceiv_driver,
+ usb_nop_xceiv_devclass, 0, 0, BUS_PASS_SUPPORTDEV + BUS_PASS_ORDER_MIDDLE);
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