Date: Fri, 25 Oct 2019 18:08:59 +0000 (UTC) From: Emmanuel Vadot <manu@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r354088 - in head/sys: arm64/conf arm64/rockchip conf Message-ID: <201910251808.x9PI8xgg017572@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: manu Date: Fri Oct 25 18:08:59 2019 New Revision: 354088 URL: https://svnweb.freebsd.org/changeset/base/354088 Log: arm64: rockchip: Add rk_dwc3 driver This is a simplebus like driver that attaches the dwc3 child node and enable the clocks needed for the module. MFC after: 1 month Added: head/sys/arm64/rockchip/rk_dwc3.c (contents, props changed) Modified: head/sys/arm64/conf/GENERIC head/sys/conf/files.arm64 Modified: head/sys/arm64/conf/GENERIC ============================================================================== --- head/sys/arm64/conf/GENERIC Fri Oct 25 18:08:25 2019 (r354087) +++ head/sys/arm64/conf/GENERIC Fri Oct 25 18:08:59 2019 (r354088) @@ -215,6 +215,7 @@ device ehci_mv # Marvell EHCI USB interface device xhci # XHCI USB interface (USB 3.0) device dwc3 # Synopsys DWC controller device aw_dwc3 # Allwinner DWC3 controller +device rk_dwc3 # Rockchip DWC3 controller device usb # USB Bus (required) device ukbd # Keyboard device umass # Disks/Mass storage - Requires scbus and da Added: head/sys/arm64/rockchip/rk_dwc3.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm64/rockchip/rk_dwc3.c Fri Oct 25 18:08:59 2019 (r354088) @@ -0,0 +1,201 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (c) 2019 Emmanuel Vadot <manu@FreeBSD.Org> + * + * 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. + */ + +/* + * Rockchip DWC3 glue + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/bus.h> +#include <sys/rman.h> +#include <sys/kernel.h> +#include <sys/module.h> +#include <sys/gpio.h> +#include <machine/bus.h> + + +#include <dev/fdt/simplebus.h> + +#include <dev/fdt/fdt_common.h> +#include <dev/ofw/ofw_bus.h> +#include <dev/ofw/ofw_bus_subr.h> +#include <dev/ofw/ofw_subr.h> + +#include <dev/extres/clk/clk.h> +#include <dev/extres/hwreset/hwreset.h> +#include <dev/extres/phy/phy_usb.h> +#include <dev/extres/syscon/syscon.h> + +static struct ofw_compat_data compat_data[] = { + { "rockchip,rk3399-dwc3", 1 }, + { NULL, 0 } +}; + +struct rk_dwc3_softc { + struct simplebus_softc sc; + device_t dev; + clk_t clk_ref; + clk_t clk_suspend; + clk_t clk_bus; + clk_t clk_axi_perf; + clk_t clk_usb3; + clk_t clk_grf; + hwreset_t rst_usb3; +}; + +static int +rk_dwc3_probe(device_t dev) +{ + phandle_t node; + + if (!ofw_bus_status_okay(dev)) + return (ENXIO); + + if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0) + return (ENXIO); + + /* Binding says that we need a child node for the actual dwc3 controller */ + node = ofw_bus_get_node(dev); + if (OF_child(node) <= 0) + return (ENXIO); + + device_set_desc(dev, "Rockchip RK3399 DWC3"); + return (BUS_PROBE_DEFAULT); +} + +static int +rk_dwc3_attach(device_t dev) +{ + struct rk_dwc3_softc *sc; + device_t cdev; + phandle_t node, child; + int err; + + sc = device_get_softc(dev); + sc->dev = dev; + node = ofw_bus_get_node(dev); + + /* Mandatory clocks */ + if (clk_get_by_ofw_name(dev, 0, "ref_clk", &sc->clk_ref) != 0) { + device_printf(dev, "Cannot get ref_clk clock\n"); + return (ENXIO); + } + err = clk_enable(sc->clk_ref); + if (err != 0) { + device_printf(dev, "Could not enable clock %s\n", + clk_get_name(sc->clk_ref)); + return (ENXIO); + } + if (clk_get_by_ofw_name(dev, 0, "suspend_clk", &sc->clk_suspend) != 0) { + device_printf(dev, "Cannot get suspend_clk clock\n"); + return (ENXIO); + } + err = clk_enable(sc->clk_suspend); + if (err != 0) { + device_printf(dev, "Could not enable clock %s\n", + clk_get_name(sc->clk_suspend)); + return (ENXIO); + } + if (clk_get_by_ofw_name(dev, 0, "bus_clk", &sc->clk_bus) != 0) { + device_printf(dev, "Cannot get bus_clk clock\n"); + return (ENXIO); + } + err = clk_enable(sc->clk_bus); + if (err != 0) { + device_printf(dev, "Could not enable clock %s\n", + clk_get_name(sc->clk_bus)); + return (ENXIO); + } + if (clk_get_by_ofw_name(dev, 0, "grf_clk", &sc->clk_grf) != 0) { + device_printf(dev, "Cannot get grf_clk clock\n"); + return (ENXIO); + } + err = clk_enable(sc->clk_grf); + if (err != 0) { + device_printf(dev, "Could not enable clock %s\n", + clk_get_name(sc->clk_grf)); + return (ENXIO); + } + + /* Optional clocks */ + if (clk_get_by_ofw_name(dev, 0, "aclk_usb3_rksoc_axi_perf", &sc->clk_axi_perf) == 0) { + err = clk_enable(sc->clk_axi_perf); + if (err != 0) { + device_printf(dev, "Could not enable clock %s\n", + clk_get_name(sc->clk_axi_perf)); + return (ENXIO); + } + } + if (clk_get_by_ofw_name(dev, 0, "aclk_usb3", &sc->clk_usb3) == 0) { + err = clk_enable(sc->clk_usb3); + if (err != 0) { + device_printf(dev, "Could not enable clock %s\n", + clk_get_name(sc->clk_usb3)); + return (ENXIO); + } + } + + /* Put module out of reset */ + if (hwreset_get_by_ofw_name(dev, node, "usb3-otg", &sc->rst_usb3) == 0) { + if (hwreset_deassert(sc->rst_usb3) != 0) { + device_printf(dev, "Cannot deassert reset\n"); + return (ENXIO); + } + } + + simplebus_init(dev, node); + if (simplebus_fill_ranges(node, &sc->sc) < 0) { + device_printf(dev, "could not get ranges\n"); + return (ENXIO); + } + + for (child = OF_child(node); child > 0; child = OF_peer(child)) { + cdev = simplebus_add_device(dev, child, 0, NULL, -1, NULL); + if (cdev != NULL) + device_probe_and_attach(cdev); + } + + return (bus_generic_attach(dev)); +} + +static device_method_t rk_dwc3_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, rk_dwc3_probe), + DEVMETHOD(device_attach, rk_dwc3_attach), + + DEVMETHOD_END +}; + +static devclass_t rk_dwc3_devclass; + +DEFINE_CLASS_1(rk_dwc3, rk_dwc3_driver, rk_dwc3_methods, + sizeof(struct rk_dwc3_softc), simplebus_driver); +DRIVER_MODULE(rk_dwc3, simplebus, rk_dwc3_driver, rk_dwc3_devclass, 0, 0); Modified: head/sys/conf/files.arm64 ============================================================================== --- head/sys/conf/files.arm64 Fri Oct 25 18:08:25 2019 (r354087) +++ head/sys/conf/files.arm64 Fri Oct 25 18:08:59 2019 (r354088) @@ -292,6 +292,7 @@ cddl/dev/fbt/aarch64/fbt_isa.c optional dtrace_fbt # RockChip Drivers arm64/rockchip/rk3399_emmcphy.c optional fdt rk_emmcphy soc_rockchip_rk3399 +arm64/rockchip/rk_dwc3.c optional fdt rk_dwc3 soc_rockchip_rk3399 arm64/rockchip/rk_i2c.c optional fdt rk_i2c soc_rockchip_rk3328 | fdt rk_i2c soc_rockchip_rk3399 arm64/rockchip/rk805.c optional fdt rk805 soc_rockchip_rk3328 | fdt rk805 soc_rockchip_rk3399 arm64/rockchip/rk_grf.c optional fdt soc_rockchip_rk3328 | fdt soc_rockchip_rk3399
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201910251808.x9PI8xgg017572>