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author | gjb <gjb@FreeBSD.org> | 2016-04-11 15:24:59 +0000 |
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committer | gjb <gjb@FreeBSD.org> | 2016-04-11 15:24:59 +0000 |
commit | e0e3598ce13850597a66fd28d102b36881f7d610 (patch) | |
tree | f5194d1ce3fa45b67cf63080fc519fec83abc57a /sys/mips/mediatek/mtk_pinctrl.c | |
parent | cbc3bd9845ba5fd58e8132f9565cfbc41433938d (diff) | |
parent | 26836fccd261358467b3d92e77ff4695af286de9 (diff) | |
download | FreeBSD-src-e0e3598ce13850597a66fd28d102b36881f7d610.zip FreeBSD-src-e0e3598ce13850597a66fd28d102b36881f7d610.tar.gz |
MFH
Sponsored by: The FreeBSD Foundation
Diffstat (limited to 'sys/mips/mediatek/mtk_pinctrl.c')
-rw-r--r-- | sys/mips/mediatek/mtk_pinctrl.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/sys/mips/mediatek/mtk_pinctrl.c b/sys/mips/mediatek/mtk_pinctrl.c new file mode 100644 index 0000000..489be5b --- /dev/null +++ b/sys/mips/mediatek/mtk_pinctrl.c @@ -0,0 +1,114 @@ +/*- + * Copyright (c) 2016 Stanislav Galabov + * 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, + * without modification, immediately at the beginning of the file. + * 2. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * 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/kernel.h> +#include <sys/bus.h> +#include <sys/module.h> + +#include <dev/fdt/fdt_common.h> +#include <dev/ofw/openfirm.h> +#include <dev/ofw/ofw_bus.h> +#include <dev/ofw/ofw_bus_subr.h> + +#include <dev/fdt/fdt_pinctrl.h> +#include <mips/mediatek/mtk_sysctl.h> + +#include "fdt_pinctrl_if.h" + +static const struct ofw_compat_data compat_data[] = { + { "ralink,rt2880-pinctrl", 1 }, + + /* Sentinel */ + { NULL, 0 } +}; + +static int +mtk_pinctrl_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, "MTK Pin Controller"); + + return (0); +} + +static int +mtk_pinctrl_attach(device_t dev) +{ + + if (device_get_unit(dev) != 0) { + device_printf(dev, "Only one pin control allowed\n"); + return (ENXIO); + } + + fdt_pinctrl_register(dev, "pinctrl-single,bits"); + fdt_pinctrl_configure_tree(dev); + + if (bootverbose) + device_printf(dev, "GPIO mode: 0x%08x\n", + mtk_sysctl_get(SYSCTL_GPIOMODE)); + + return (0); +} + +static int +mtk_pinctrl_configure(device_t dev, phandle_t cfgxref) +{ + + return (EINVAL); +} + +static device_method_t mtk_pinctrl_methods[] = { + DEVMETHOD(device_probe, mtk_pinctrl_probe), + DEVMETHOD(device_attach, mtk_pinctrl_attach), + + /* fdt_pinctrl interface */ + DEVMETHOD(fdt_pinctrl_configure, mtk_pinctrl_configure), + + DEVMETHOD_END +}; + +static driver_t mtk_pinctrl_driver = { + "pinctrl", + mtk_pinctrl_methods, + 0, +}; +static devclass_t mtk_pinctrl_devclass; + +EARLY_DRIVER_MODULE(mtk_pinctrl, simplebus, mtk_pinctrl_driver, + mtk_pinctrl_devclass, 0, 0, BUS_PASS_INTERRUPT + BUS_PASS_ORDER_EARLY); + +MODULE_DEPEND(mtk_pinctrl, mtk_sysctl, 1, 1, 1); |