diff options
Diffstat (limited to 'sys/arm/ti/am335x/am335x_usb_phy.c')
-rw-r--r-- | sys/arm/ti/am335x/am335x_usb_phy.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/sys/arm/ti/am335x/am335x_usb_phy.c b/sys/arm/ti/am335x/am335x_usb_phy.c new file mode 100644 index 000000000000..00e28122dcec --- /dev/null +++ b/sys/arm/ti/am335x/am335x_usb_phy.c @@ -0,0 +1,121 @@ +/*- + * + * Copyright (c) 2020 Oskar Holmlund <oskar.holmlund@ohdata.se> + * + * 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 ``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 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. + * + * $FreeBSD$ + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/bus.h> +#include <sys/fbio.h> +#include <sys/kernel.h> +#include <sys/module.h> +#include <sys/rman.h> +#include <sys/resource.h> +#include <machine/bus.h> +#include <vm/vm.h> +#include <vm/vm_extern.h> +#include <vm/vm_kern.h> +#include <vm/pmap.h> + +#include <dev/fdt/simplebus.h> + +#include <dev/ofw/ofw_bus.h> +#include <dev/ofw/ofw_bus_subr.h> + +#define TI_AM335X_USB_PHY 1 +#define TI_AM335X_USB_PHY_END 0 + +static struct ofw_compat_data compat_data[] = { + { "ti,am335x-usb-phy", TI_AM335X_USB_PHY }, + { NULL, TI_AM335X_USB_PHY_END } +}; + +struct ti_usb_phy_softc { + device_t dev; +}; + +static int ti_usb_phy_probe(device_t dev); +static int ti_usb_phy_attach(device_t dev); +static int ti_usb_phy_detach(device_t dev); + +static int +ti_usb_phy_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, "TI AM335x USB PHY"); + if (!bootverbose) + device_quiet(dev); + + return (BUS_PROBE_DEFAULT); +} + +static int +ti_usb_phy_attach(device_t dev) +{ + struct ti_usb_phy_softc *sc; + phandle_t node; + + sc = device_get_softc(dev); + sc->dev = dev; + node = ofw_bus_get_node(dev); + + /* FIXME: Add dev/extres/phy/ interface */ + + return (bus_generic_attach(dev)); +} + +static int +ti_usb_phy_detach(device_t dev) +{ + return (EBUSY); +} + +static device_method_t ti_usb_phy_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, ti_usb_phy_probe), + DEVMETHOD(device_attach, ti_usb_phy_attach), + DEVMETHOD(device_detach, ti_usb_phy_detach), + + DEVMETHOD_END +}; + +DEFINE_CLASS_1(ti_usb_phy, ti_usb_phy_driver, ti_usb_phy_methods, + sizeof(struct ti_usb_phy_softc), simplebus_driver); + +static devclass_t ti_usb_phy_devclass; + +EARLY_DRIVER_MODULE(ti_usb_phy, simplebus, ti_usb_phy_driver, + ti_usb_phy_devclass, 0, 0, BUS_PASS_BUS + BUS_PASS_ORDER_FIRST); +MODULE_VERSION(ti_usb_phy, 1); +MODULE_DEPEND(ti_usb_phy, ti_sysc, 1, 1, 1); |