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files.omap4
(630 B)
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omap4_gpio.c
(4.2 KB)
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omap4_l2cache.c
(2.68 KB)
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omap4_machdep.h
(1.71 KB)
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omap4_mp.c
(2.39 KB)
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omap4_prcm_clks.c
(43.28 KB)
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omap4_reg.h
(28.83 KB)
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omap4_scm_padconf.c
(27.18 KB)
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omap4_scm_padconf.h
(4.24 KB)
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omap4_smc.h
(2.17 KB)
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omap4_wugen.c
(6.63 KB)
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pandaboard
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std.omap4
(140 B)
Editing: omap4_gpio.c
/*- * Copyright (c) 2011 Ben Gray <ben.r.gray@gmail.com>. * Copyright (c) 2014 Andrew Turner <andrew@FreeBSD.org> * 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. * 3. The name of the company nor the name of the author may be used to * endorse or promote products derived from this software without specific * prior written permission. * * THIS SOFTWARE IS PROVIDED BY BEN GRAY ``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 BEN GRAY 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/systm.h> #include <sys/kernel.h> #include <sys/module.h> #include <sys/bus.h> #include <sys/gpio.h> #include <machine/bus.h> #include <machine/intr.h> #include <dev/ofw/ofw_bus.h> #include <dev/ofw/ofw_bus_subr.h> #include <arm/ti/ti_cpuid.h> #include <arm/ti/ti_gpio.h> #include <arm/ti/ti_pinmux.h> #include <arm/ti/omap4/omap4_scm_padconf.h> #include "ti_gpio_if.h" static struct ofw_compat_data compat_data[] = { {"ti,omap4-gpio", 1}, {"ti,gpio", 1}, {NULL, 0}, }; static int omap4_gpio_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); if (ti_chip() != CHIP_OMAP_4) return (ENXIO); device_set_desc(dev, "TI OMAP4 General Purpose I/O (GPIO)"); return (0); } static int omap4_gpio_set_flags(device_t dev, uint32_t gpio, uint32_t flags) { unsigned int state = 0; struct ti_gpio_softc *sc; sc = device_get_softc(dev); /* First the SCM driver needs to be told to put the pad into GPIO mode */ if (flags & GPIO_PIN_OUTPUT) state = PADCONF_PIN_OUTPUT; else if (flags & GPIO_PIN_INPUT) { if (flags & GPIO_PIN_PULLUP) state = PADCONF_PIN_INPUT_PULLUP; else if (flags & GPIO_PIN_PULLDOWN) state = PADCONF_PIN_INPUT_PULLDOWN; else state = PADCONF_PIN_INPUT; } return ti_pinmux_padconf_set_gpiomode((sc->sc_bank-1)*32 + gpio, state); } static int omap4_gpio_get_flags(device_t dev, uint32_t gpio, uint32_t *flags) { unsigned int state; struct ti_gpio_softc *sc; sc = device_get_softc(dev); /* Get the current pin state */ if (ti_pinmux_padconf_get_gpiomode((sc->sc_bank-1)*32 + gpio, &state) != 0) { *flags = 0; return (EINVAL); } else { switch (state) { case PADCONF_PIN_OUTPUT: *flags = GPIO_PIN_OUTPUT; break; case PADCONF_PIN_INPUT: *flags = GPIO_PIN_INPUT; break; case PADCONF_PIN_INPUT_PULLUP: *flags = GPIO_PIN_INPUT | GPIO_PIN_PULLUP; break; case PADCONF_PIN_INPUT_PULLDOWN: *flags = GPIO_PIN_INPUT | GPIO_PIN_PULLDOWN; break; default: *flags = 0; break; } } return (0); } static device_method_t omap4_gpio_methods[] = { /* bus interface */ DEVMETHOD(device_probe, omap4_gpio_probe), /* ti_gpio interface */ DEVMETHOD(ti_gpio_set_flags, omap4_gpio_set_flags), DEVMETHOD(ti_gpio_get_flags, omap4_gpio_get_flags), DEVMETHOD_END }; extern driver_t ti_gpio_driver; static devclass_t omap4_gpio_devclass; DEFINE_CLASS_1(gpio, omap4_gpio_driver, omap4_gpio_methods, sizeof(struct ti_gpio_softc), ti_gpio_driver); DRIVER_MODULE(omap4_gpio, simplebus, omap4_gpio_driver, omap4_gpio_devclass, 0, 0);
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