Date: Wed, 12 Dec 2018 22:00:05 +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: r342011 - in head/sys: arm/mv arm64/conf conf Message-ID: <201812122200.wBCM05kK004858@repo.freebsd.org>
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Author: manu Date: Wed Dec 12 22:00:05 2018 New Revision: 342011 URL: https://svnweb.freebsd.org/changeset/base/342011 Log: arm64: mvebu_pinctrl: Add driver for Marvell Pinmux Controller Add a driver compatible with Marvell mvebu-pinctrl and add ap806-pinctrl support. Sponsored by: Rubicon Communications, LCC ("Netgate") Added: head/sys/arm/mv/mvebu_pinctrl.c (contents, props changed) Modified: head/sys/arm64/conf/GENERIC head/sys/conf/files.arm64 Added: head/sys/arm/mv/mvebu_pinctrl.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm/mv/mvebu_pinctrl.c Wed Dec 12 22:00:05 2018 (r342011) @@ -0,0 +1,246 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (c) 2018 Rubicon Communications, LLC (Netgate) + * + * 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. + * + * $FreeBSD$ + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/bus.h> + +#include <sys/kernel.h> +#include <sys/module.h> +#include <sys/rman.h> +#include <sys/lock.h> +#include <sys/mutex.h> + +#include <machine/bus.h> +#include <machine/resource.h> +#include <machine/intr.h> + +#include <dev/fdt/simplebus.h> + +#include <dev/ofw/ofw_bus.h> +#include <dev/ofw/ofw_bus_subr.h> + +#include <dev/fdt/fdt_pinctrl.h> + +#include "opt_soc.h" + +#define PINS_PER_REG 8 +#define BITS_PER_PIN 4 +#define PINS_MASK 0xf +#define MAX_PIN_FUNC 5 + +struct mv_pins { + const char *name; + const char *functions[MAX_PIN_FUNC]; +}; + +struct mv_padconf { + const struct mv_pins *pins; + size_t npins; +}; + +#ifdef SOC_MARVELL_8K +const static struct mv_pins ap806_pins[] = { + {"mpp0", {"gpio", "sdio", NULL, "spi0"}}, + {"mpp1", {"gpio", "sdio", NULL, "spi0"}}, + {"mpp2", {"gpio", "sdio", NULL, "spi0"}}, + {"mpp3", {"gpio", "sdio", NULL, "spi0"}}, + {"mpp4", {"gpio", "sdio", NULL, "i2c0"}}, + {"mpp5", {"gpio", "sdio", NULL, "i2c0"}}, + {"mpp6", {"gpio", "sdio", NULL, NULL}}, + {"mpp7", {"gpio", "sdio", NULL, "uart1"}}, + {"mpp8", {"gpio", "sdio", NULL, "uart1"}}, + {"mpp9", {"gpio", "sdio", NULL, "spi0"}}, + {"mpp10", {"gpio", "sdio", NULL, NULL}}, + {"mpp11", {"gpio", NULL, NULL, "uart0"}}, + {"mpp12", {"gpio", "sdio", "sdio", NULL}}, + {"mpp13", {"gpio", NULL, NULL}}, + {"mpp14", {"gpio", NULL, NULL}}, + {"mpp15", {"gpio", NULL, NULL}}, + {"mpp16", {"gpio", NULL, NULL}}, + {"mpp17", {"gpio", NULL, NULL}}, + {"mpp18", {"gpio", NULL, NULL}}, + {"mpp19", {"gpio", NULL, NULL, "uart0", "sdio"}}, +}; + +const struct mv_padconf ap806_padconf = { + .npins = nitems(ap806_pins), + .pins = ap806_pins, +}; +#endif + +struct mv_pinctrl_softc { + device_t dev; + struct resource *res; + + struct mv_padconf *padconf; +}; + +static struct resource_spec mv_pinctrl_res_spec[] = { + { SYS_RES_MEMORY, 0, RF_ACTIVE | RF_SHAREABLE }, + { -1, 0 } +}; + +static struct ofw_compat_data compat_data[] = { +#ifdef SOC_MARVELL_8K + {"marvell,ap806-pinctrl", (uintptr_t)&ap806_padconf}, +#endif + {NULL, 0} +}; + +#define RD4(sc, reg) bus_read_4((sc)->res, (reg)) +#define WR4(sc, reg, val) bus_write_4((sc)->res, (reg), (val)) + +static void +mv_pinctrl_configure_pin(struct mv_pinctrl_softc *sc, uint32_t pin, + uint32_t function) +{ + uint32_t offset, shift, reg; + + offset = (pin / PINS_PER_REG) * BITS_PER_PIN; + shift = (pin % PINS_PER_REG) * BITS_PER_PIN; + reg = RD4(sc, offset); + reg &= ~(PINS_MASK << shift); + reg |= function << shift; + WR4(sc, offset, reg); +} + +static int +mv_pinctrl_configure_pins(device_t dev, phandle_t cfgxref) +{ + struct mv_pinctrl_softc *sc; + phandle_t node; + char *function; + const char **pins; + int i, pin_num, pin_func, npins; + + sc = device_get_softc(dev); + node = OF_node_from_xref(cfgxref); + + if (OF_getprop_alloc(node, "marvell,function", + (void **)&function) == -1) + return (ENOMEM); + + npins = ofw_bus_string_list_to_array(node, "marvell,pins", &pins); + if (npins == -1) + return (ENOMEM); + + for (i = 0; i < npins; i++) { + for (pin_num = 0; pin_num < sc->padconf->npins; pin_num++) { + if (strcmp(pins[i], sc->padconf->pins[pin_num].name) == 0) + break; + } + if (pin_num == sc->padconf->npins) + continue; + + for (pin_func = 0; pin_func < MAX_PIN_FUNC; pin_func++) + if (sc->padconf->pins[pin_num].functions[pin_func] && + strcmp(function, sc->padconf->pins[pin_num].functions[pin_func]) == 0) + break; + + if (pin_func == MAX_PIN_FUNC) + continue; + + mv_pinctrl_configure_pin(sc, pin_num, pin_func); + } + + OF_prop_free(pins); + + return (0); +} + +static int +mv_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, "Marvell Pinctrl controller"); + return (BUS_PROBE_DEFAULT); +} + +static int +mv_pinctrl_attach(device_t dev) +{ + struct mv_pinctrl_softc *sc; + phandle_t node; + + sc = device_get_softc(dev); + sc->dev = dev; + sc->padconf = (struct mv_padconf *)ofw_bus_search_compatible(dev, compat_data)->ocd_data; + + if (bus_alloc_resources(dev, mv_pinctrl_res_spec, &sc->res) != 0) { + device_printf(dev, "cannot allocate resources for device\n"); + return (ENXIO); + } + + node = ofw_bus_get_node(dev); + + fdt_pinctrl_register(dev, "marvell,pins"); + fdt_pinctrl_configure_tree(dev); + + return (0); +} + +static int +mv_pinctrl_detach(device_t dev) +{ + + return (EBUSY); +} + +static device_method_t mv_pinctrl_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, mv_pinctrl_probe), + DEVMETHOD(device_attach, mv_pinctrl_attach), + DEVMETHOD(device_detach, mv_pinctrl_detach), + + /* fdt_pinctrl interface */ + DEVMETHOD(fdt_pinctrl_configure,mv_pinctrl_configure_pins), + + DEVMETHOD_END +}; + +static devclass_t mv_pinctrl_devclass; + +static driver_t mv_pinctrl_driver = { + "mv_pinctrl", + mv_pinctrl_methods, + sizeof(struct mv_pinctrl_softc), +}; + +EARLY_DRIVER_MODULE(mv_pinctrl, simplebus, mv_pinctrl_driver, + mv_pinctrl_devclass, 0, 0, BUS_PASS_INTERRUPT + BUS_PASS_ORDER_LATE); Modified: head/sys/arm64/conf/GENERIC ============================================================================== --- head/sys/arm64/conf/GENERIC Wed Dec 12 21:58:30 2018 (r342010) +++ head/sys/arm64/conf/GENERIC Wed Dec 12 22:00:05 2018 (r342011) @@ -199,11 +199,12 @@ device muge device smcphy device smsc -# GPIO +# GPIO / PINCTRL device aw_gpio # Allwinner GPIO controller device gpio device gpioled device fdt_pinctrl +device mvebu_pinctrl # Marvell Pinmux Controller # I2C device aw_rsb # Allwinner Reduced Serial Bus Modified: head/sys/conf/files.arm64 ============================================================================== --- head/sys/conf/files.arm64 Wed Dec 12 21:58:30 2018 (r342010) +++ head/sys/conf/files.arm64 Wed Dec 12 22:00:05 2018 (r342011) @@ -89,6 +89,7 @@ arm/broadcom/bcm2835/bcm2835_vcio.c optional soc_brcm arm/broadcom/bcm2835/bcm2835_wdog.c optional soc_brcm_bcm2837 fdt arm/broadcom/bcm2835/bcm2836.c optional soc_brcm_bcm2837 fdt arm/broadcom/bcm2835/bcm283x_dwc_fdt.c optional dwcotg fdt soc_brcm_bcm2837 +arm/mv/mvebu_pinctrl.c optional mvebu_pinctrl fdt arm/mv/armada38x/armada38x_rtc.c optional mv_rtc fdt arm/xilinx/uart_dev_cdnc.c optional uart soc_xilinx_zynq arm64/acpica/acpi_machdep.c optional acpi
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