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
This commit is contained in:
parent
f5be484b45
commit
7d888a5b2b
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=354088
@ -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
|
||||
|
201
sys/arm64/rockchip/rk_dwc3.c
Normal file
201
sys/arm64/rockchip/rk_dwc3.c
Normal file
@ -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);
|
@ -292,6 +292,7 @@ cddl/dev/fbt/aarch64/fbt_isa.c optional dtrace_fbt | dtraceall compile-with "
|
||||
|
||||
# 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
|
||||
|
Loading…
Reference in New Issue
Block a user