mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-22 11:17:19 +00:00
0aa4b81381
For now clocks, GPIO, Pinmux, UART, MMC, EHCI is supported. Tested on OrangePi-One Reviewed by: jmcneill Approved by: cognet (mentor) Differential Revision: https://reviews.freebsd.org/D6311
152 lines
3.8 KiB
C
152 lines
3.8 KiB
C
/*-
|
|
* Copyright (c) 2016 Jared McNeill <jmcneill@invisible.ca>
|
|
* 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 ``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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* Allwinner USB PHY
|
|
*/
|
|
|
|
#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 <dev/ofw/ofw_bus.h>
|
|
#include <dev/ofw/ofw_bus_subr.h>
|
|
|
|
#include <dev/extres/clk/clk.h>
|
|
#include <dev/extres/hwreset/hwreset.h>
|
|
#include <dev/extres/regulator/regulator.h>
|
|
|
|
#define USBPHY_NUMOFF 3
|
|
|
|
static struct ofw_compat_data compat_data[] = {
|
|
{ "allwinner,sun4i-a10-usb-phy", 1 },
|
|
{ "allwinner,sun5i-a13-usb-phy", 1 },
|
|
{ "allwinner,sun6i-a31-usb-phy", 1 },
|
|
{ "allwinner,sun7i-a20-usb-phy", 1 },
|
|
{ "allwinner,sun8i-a83t-usb-phy", 1 },
|
|
{ "allwinner,sun8i-h3-usb-phy", 1 },
|
|
{ NULL, 0 }
|
|
};
|
|
|
|
static int
|
|
awusbphy_init(device_t dev)
|
|
{
|
|
char pname[20];
|
|
int error, off;
|
|
regulator_t reg;
|
|
hwreset_t rst;
|
|
clk_t clk;
|
|
|
|
/* Enable clocks */
|
|
for (off = 0; clk_get_by_ofw_index(dev, off, &clk) == 0; off++) {
|
|
error = clk_enable(clk);
|
|
if (error != 0) {
|
|
device_printf(dev, "couldn't enable clock %s\n",
|
|
clk_get_name(clk));
|
|
return (error);
|
|
}
|
|
}
|
|
|
|
/* De-assert resets */
|
|
for (off = 0; hwreset_get_by_ofw_idx(dev, off, &rst) == 0; off++) {
|
|
error = hwreset_deassert(rst);
|
|
if (error != 0) {
|
|
device_printf(dev, "couldn't de-assert reset %d\n",
|
|
off);
|
|
return (error);
|
|
}
|
|
}
|
|
|
|
/* Enable regulator(s) */
|
|
for (off = 0; off < USBPHY_NUMOFF; off++) {
|
|
snprintf(pname, sizeof(pname), "usb%d_vbus-supply", off);
|
|
if (regulator_get_by_ofw_property(dev, pname, ®) != 0)
|
|
continue;
|
|
error = regulator_enable(reg);
|
|
if (error != 0) {
|
|
device_printf(dev, "couldn't enable regulator %s\n",
|
|
pname);
|
|
return (error);
|
|
}
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
awusbphy_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, "Allwinner USB PHY");
|
|
return (BUS_PROBE_DEFAULT);
|
|
}
|
|
|
|
static int
|
|
awusbphy_attach(device_t dev)
|
|
{
|
|
int error;
|
|
|
|
error = awusbphy_init(dev);
|
|
if (error)
|
|
device_printf(dev, "failed to initialize USB PHY, error %d\n",
|
|
error);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static device_method_t awusbphy_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, awusbphy_probe),
|
|
DEVMETHOD(device_attach, awusbphy_attach),
|
|
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
static driver_t awusbphy_driver = {
|
|
"awusbphy",
|
|
awusbphy_methods,
|
|
0,
|
|
};
|
|
|
|
static devclass_t awusbphy_devclass;
|
|
|
|
DRIVER_MODULE(awusbphy, simplebus, awusbphy_driver, awusbphy_devclass, 0, 0);
|
|
MODULE_VERSION(awusbphy, 1);
|