add a driver for BCM2835 obio gpio
This commit is contained in:
kardel
parent
033b7adbef
commit
511648e509
@ -1,4 +1,4 @@
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# $NetBSD: mi,v 1.1469 2014/04/15 22:09:27 ginsbach Exp $
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# $NetBSD: mi,v 1.1470 2014/04/22 18:51:35 kardel Exp $
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#
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# Note: don't delete entries from here - mark them as "obsolete" instead.
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#
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@ -901,6 +901,7 @@
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./usr/share/man/cat4/battery_pmu.0 man-sys-catman .cat
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./usr/share/man/cat4/bba.0 man-sys-catman .cat
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./usr/share/man/cat4/bce.0 man-sys-catman .cat
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./usr/share/man/cat4/bcmgpio.0 man-sys-catman .cat
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./usr/share/man/cat4/bcsp.0 man-sys-catman .cat
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./usr/share/man/cat4/be.0 man-sys-catman .cat
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./usr/share/man/cat4/bge.0 man-sys-catman .cat
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@ -3941,6 +3942,7 @@
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./usr/share/man/html4/battery_pmu.html man-sys-htmlman html
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./usr/share/man/html4/bba.html man-sys-htmlman html
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./usr/share/man/html4/bce.html man-sys-htmlman html
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./usr/share/man/html4/bcmgpio.html man-sys-htmlman html
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./usr/share/man/html4/bcsp.html man-sys-htmlman html
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./usr/share/man/html4/be.html man-sys-htmlman html
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./usr/share/man/html4/bge.html man-sys-htmlman html
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@ -6745,6 +6747,7 @@
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./usr/share/man/man4/battery_pmu.4 man-sys-man .man
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./usr/share/man/man4/bba.4 man-sys-man .man
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./usr/share/man/man4/bce.4 man-sys-man .man
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./usr/share/man/man4/bcmgpio.4 man-sys-man .man
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./usr/share/man/man4/bcsp.4 man-sys-man .man
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./usr/share/man/man4/be.4 man-sys-man .man
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./usr/share/man/man4/bge.4 man-sys-man .man
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@ -1,4 +1,4 @@
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# LIST OF CHANGES FROM LAST RELEASE: <$Revision: 1.1918 $>
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# LIST OF CHANGES FROM LAST RELEASE: <$Revision: 1.1919 $>
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#
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#
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# [Note: This file does not mention every change made to the NetBSD source tree.
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@ -401,7 +401,7 @@ Changes from NetBSD 6.0 to NetBSD 7.0:
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ptyfs: Allow multiple mounts and support proper device visibility
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in chroots (Ilya Zykov) [christos 20140404]
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i386: Switched to GCC 4.8. [christos 20140404]
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mcp23s17gpio: Add Microchip MCP23S17 16-bit GPIO chip driver.
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mcp23s17gpio(4): Add Microchip MCP23S17 16-bit GPIO chip driver.
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e.g. Raspberry Pi interface boards [kardel 20140406]
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OpenSSL: Imported 1.0.1g [christos 20140407]
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sparc64: Switched to TOPDOWN_VM [martin 20140414]
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@ -411,3 +411,5 @@ Changes from NetBSD 6.0 to NetBSD 7.0:
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hp300: Add HP9000/425e RTC support. [tsutsui 20140419]
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ubsec(4): Add support for AES-CBC modes and BCM586x chips.
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[bad 20140419]
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bcmgpio(4): Add BCM2835 GPIO obio driver.
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[kardel 20140422]
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63
share/man/man4/bcmgpio.4
Normal file
63
share/man/man4/bcmgpio.4
Normal file
@ -0,0 +1,63 @@
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.\" $NetBSD: bcmgpio.4,v 1.1 2014/04/22 18:51:35 kardel Exp $
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.\"
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.\"Copyright (c) 2014 Frank Kardel
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.\"All rights reserved.
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.\"
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.\"Redistribution and use in source and binary forms, with or without
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.\"modification, are permitted provided that the following conditions
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.\"are met:
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.\"1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\"2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\"THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS
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.\"``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\"TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\"PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\"BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\"CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\"SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\"INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\"CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\"ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\"POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd April 21, 2014
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.Dt BCMGPIO 4
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.Os
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.Sh NAME
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.Nm bcmgpio
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.Nd Driver for BCM2835 onboard gpio
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.Sh SYNOPSIS
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.Cd "bcmgpio0 at obio?"
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.Cd "bcmgpio1 at obio?"
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.Cd "gpio* at gpiobus?"
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.Sh DESCRIPTION
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The
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.Nm
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driver supports up to two instances.
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Access to the pins is provided by the
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.Xr gpio 4
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interface.
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The
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.Nm
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.Ar unitnumber
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argument selects the pin range. Unit 0 covers GPIO pins 0 through 31 and
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unit 1 covers pins 32 through 53. GPIO pins being used in alternate configurations
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are not available for GPIO operations.
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.Sh SEE ALSO
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.Xr gpio 4 ,
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.Xr intro 4
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.Sh HISTORY
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The
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.Nm
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driver first appeared in
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.Nx 7.0 .
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.Sh AUTHORS
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.An -nosplit
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The
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.Nm
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driver was written by
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.An Frank Kardel Aq Mt kardel@NetBSD.org .
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265
sys/arch/arm/broadcom/bcm2835_gpio.c
Normal file
265
sys/arch/arm/broadcom/bcm2835_gpio.c
Normal file
@ -0,0 +1,265 @@
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/* $NetBSD: bcm2835_gpio.c,v 1.1 2014/04/22 18:51:35 kardel Exp $ */
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/*-
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* Copyright (c) 2014 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Frank Kardel.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: bcm2835_gpio.c,v 1.1 2014/04/22 18:51:35 kardel Exp $");
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/*
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* Driver for BCM2835 GPIO
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*
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* see: http://www.raspberrypi.org/wp-content/uploads/2012/02/BCM2835-ARM-Peripherals.pdf
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*/
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#include "gpio.h"
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/systm.h>
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#include <sys/mutex.h>
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#include <sys/bus.h>
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#include <sys/intr.h>
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#include <sys/kernel.h>
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#include <sys/gpio.h>
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#include <dev/gpio/gpiovar.h>
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#include <sys/bitops.h>
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#include <arm/broadcom/bcm_amba.h>
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#include <arm/broadcom/bcm2835reg.h>
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#include <arm/broadcom/bcm2835_gpioreg.h>
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#include <arm/broadcom/bcm2835_gpio_subr.h>
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/* #define BCM2835_GPIO_DEBUG */
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#ifdef BCM2835_GPIO_DEBUG
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int bcm2835gpiodebug = 3;
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#define DPRINTF(l, x) do { if (l <= bcm2835gpiodebug) { printf x; } } while (0)
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#else
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#define DPRINTF(l, x)
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#endif
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struct bcmgpio_softc {
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device_t sc_dev;
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bus_space_tag_t sc_iot;
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bus_space_handle_t sc_ioh;
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struct gpio_chipset_tag sc_gpio_gc;
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gpio_pin_t sc_gpio_pins[32];
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};
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static int bcmgpio_match(device_t, cfdata_t, void *);
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static void bcmgpio_attach(device_t, device_t, void *);
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#if NGPIO > 0
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static int bcm2835gpio_gpio_pin_read(void *, int);
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static void bcm2835gpio_gpio_pin_write(void *, int, int);
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static void bcm2835gpio_gpio_pin_ctl(void *, int, int);
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#endif
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CFATTACH_DECL_NEW(bcmgpio, sizeof(struct bcmgpio_softc),
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bcmgpio_match, bcmgpio_attach, NULL, NULL);
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static int
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bcmgpio_match(device_t parent, cfdata_t cf, void *aux)
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{
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struct amba_attach_args * const aaa = aux;
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if (strcmp(aaa->aaa_name, "bcmgpio") != 0)
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return 0;
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return 1;
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}
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static void
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bcmgpio_attach(device_t parent, device_t self, void *aux)
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{
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struct bcmgpio_softc * const sc = device_private(self);
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#if NGPIO > 0
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int pin, minpin, maxpin;
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u_int func;
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struct gpiobus_attach_args gba;
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#endif
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sc->sc_dev = self;
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if (device_unit(sc->sc_dev) > 1) {
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aprint_naive(" NO GPIO\n");
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aprint_normal(": NO GPIO\n");
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return;
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} else if (device_unit(sc->sc_dev) == 1) {
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maxpin = 53;
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minpin = 32;
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} else {
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maxpin = 31;
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minpin = 0;
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}
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aprint_naive("\n");
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aprint_normal(": GPIO [%d...%d]\n", minpin, maxpin);
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/* already mapped - nothing to gain from struct amba_attach_args */
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sc->sc_iot = &bcm2835_bs_tag;
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sc->sc_ioh = BCM2835_IOPHYSTOVIRT(BCM2835_GPIO_BASE);
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#if NGPIO > 0
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for (pin = minpin; pin <= maxpin; pin++) {
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int epin = pin - minpin;
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sc->sc_gpio_pins[epin].pin_num = epin;
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/*
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* find out pins still available for GPIO
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*/
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func = bcm2835gpio_function_read(pin);
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if (func == BCM2835_GPIO_IN ||
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func == BCM2835_GPIO_OUT) {
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sc->sc_gpio_pins[epin].pin_caps = GPIO_PIN_INPUT |
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GPIO_PIN_OUTPUT |
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GPIO_PIN_PUSHPULL | GPIO_PIN_TRISTATE |
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GPIO_PIN_PULLUP | GPIO_PIN_PULLDOWN;
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/* read initial state */
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sc->sc_gpio_pins[epin].pin_state =
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bcm2835gpio_gpio_pin_read(sc, epin);
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DPRINTF(1, ("%s: attach pin %d\n", device_xname(sc->sc_dev), pin));
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} else {
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sc->sc_gpio_pins[epin].pin_caps = 0;
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sc->sc_gpio_pins[epin].pin_state = 0;
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DPRINTF(1, ("%s: skip pin %d - func = 0x%x\n", device_xname(sc->sc_dev), pin, func));
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}
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}
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/* create controller tag */
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sc->sc_gpio_gc.gp_cookie = sc;
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sc->sc_gpio_gc.gp_pin_read = bcm2835gpio_gpio_pin_read;
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sc->sc_gpio_gc.gp_pin_write = bcm2835gpio_gpio_pin_write;
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sc->sc_gpio_gc.gp_pin_ctl = bcm2835gpio_gpio_pin_ctl;
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gba.gba_gc = &sc->sc_gpio_gc;
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gba.gba_pins = sc->sc_gpio_pins;
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gba.gba_npins = maxpin - minpin + 1;
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config_found_ia(self, "gpiobus", &gba, gpiobus_print);
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#else
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aprint_normal_dev(sc->sc_dev, "no GPIO configured in kernel");
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#endif
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}
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#if NGPIO > 0
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/* GPIO support functions */
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static int
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bcm2835gpio_gpio_pin_read(void *arg, int pin)
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{
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struct bcmgpio_softc *sc = arg;
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int epin = pin + device_unit(sc->sc_dev) * 32;
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uint32_t val;
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int res;
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if (device_unit(sc->sc_dev) > 1) {
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return 0;
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}
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val = bus_space_read_4(sc->sc_iot, sc->sc_ioh,
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BCM2835_GPIO_GPLEV(epin / BCM2835_GPIO_GPLEV_PINS_PER_REGISTER));
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res = val & (1 << (epin % BCM2835_GPIO_GPLEV_PINS_PER_REGISTER)) ?
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GPIO_PIN_HIGH : GPIO_PIN_LOW;
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DPRINTF(2, ("%s: gpio_read pin %d->%d\n", device_xname(sc->sc_dev), epin, (res == GPIO_PIN_HIGH)));
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return res;
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}
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static void
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bcm2835gpio_gpio_pin_write(void *arg, int pin, int value)
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{
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struct bcmgpio_softc *sc = arg;
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int epin = pin + device_unit(sc->sc_dev) * 32;
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bus_size_t reg;
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if (device_unit(sc->sc_dev) > 1) {
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return;
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}
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if (value == GPIO_PIN_HIGH) {
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reg = BCM2835_GPIO_GPSET(epin / BCM2835_GPIO_GPSET_PINS_PER_REGISTER);
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} else {
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reg = BCM2835_GPIO_GPCLR(epin / BCM2835_GPIO_GPCLR_PINS_PER_REGISTER);
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}
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bus_space_write_4(sc->sc_iot, sc->sc_ioh,
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reg, 1 << (epin % BCM2835_GPIO_GPSET_PINS_PER_REGISTER));
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DPRINTF(2, ("%s: gpio_write pin %d<-%d\n", device_xname(sc->sc_dev), epin, (value == GPIO_PIN_HIGH)));
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}
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static void
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bcm2835gpio_gpio_pin_ctl(void *arg, int pin, int flags)
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{
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struct bcmgpio_softc *sc = arg;
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uint32_t cmd;
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int epin = pin + device_unit(sc->sc_dev) * 32;
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if (device_unit(sc->sc_dev) > 1) {
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return;
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}
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DPRINTF(2, ("%s: gpio_ctl pin %d flags 0x%x\n", device_xname(sc->sc_dev), epin, flags));
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if (flags & (GPIO_PIN_OUTPUT|GPIO_PIN_INPUT)) {
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if ((flags & GPIO_PIN_INPUT) || !(flags & GPIO_PIN_OUTPUT)) {
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/* for safety INPUT will overide output */
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bcm2835gpio_function_select(epin, BCM2835_GPIO_IN);
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} else {
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bcm2835gpio_function_select(epin, BCM2835_GPIO_OUT);
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}
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}
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if (flags & (GPIO_PIN_PULLUP|GPIO_PIN_PULLDOWN)) {
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cmd = (flags & GPIO_PIN_PULLUP) ?
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BCM2835_GPIO_GPPUD_PULLUP : BCM2835_GPIO_GPPUD_PULLDOWN;
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} else {
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cmd = BCM2835_GPIO_GPPUD_PULLOFF;
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}
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/* set up control signal */
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bus_space_write_4(sc->sc_iot, sc->sc_ioh,
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BCM2835_GPIO_GPPUD, cmd);
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delay(1); /* wait 150 cycles */
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/* set clock signal */
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bus_space_write_4(sc->sc_iot, sc->sc_ioh,
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BCM2835_GPIO_GPPUDCLK(device_unit(sc->sc_dev)),
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1 << (epin % BCM2835_GPIO_GPPUD_PINS_PER_REGISTER));
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delay(1); /* wait 150 cycles */
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/* reset control signal and clock */
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bus_space_write_4(sc->sc_iot, sc->sc_ioh,
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BCM2835_GPIO_GPPUD, BCM2835_GPIO_GPPUD_PULLOFF);
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bus_space_write_4(sc->sc_iot, sc->sc_ioh,
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BCM2835_GPIO_GPPUDCLK(device_unit(sc->sc_dev)),
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0);
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}
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#endif /* NGPIO > 0 */
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@ -1,4 +1,4 @@
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/* $NetBSD: bcm2835_gpio_subr.c,v 1.2 2013/01/09 01:58:41 jmcneill Exp $ */
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/* $NetBSD: bcm2835_gpio_subr.c,v 1.3 2014/04/22 18:51:35 kardel Exp $ */
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/*
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* Copyright (c) 2013 Jonathan A. Kollasch
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@ -27,7 +27,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: bcm2835_gpio_subr.c,v 1.2 2013/01/09 01:58:41 jmcneill Exp $");
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__KERNEL_RCSID(0, "$NetBSD: bcm2835_gpio_subr.c,v 1.3 2014/04/22 18:51:35 kardel Exp $");
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#include <sys/param.h>
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#include <sys/device.h>
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@ -51,7 +51,6 @@ bcm2835gpio_function_select(u_int pin, u_int func)
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BCM2835_GPIO_GPFSEL_BITS_PER_PIN;
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uint32_t v;
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|
||||
|
||||
KASSERT(func <= mask);
|
||||
|
||||
v = bus_space_read_4(iot, ioh, BCM2835_GPIO_GPFSEL(regid));
|
||||
@ -67,3 +66,19 @@ bcm2835gpio_function_select(u_int pin, u_int func)
|
||||
|
||||
bus_space_write_4(iot, ioh, BCM2835_GPIO_GPFSEL(regid), v);
|
||||
}
|
||||
|
||||
u_int
|
||||
bcm2835gpio_function_read(u_int pin)
|
||||
{
|
||||
const bus_space_tag_t iot = &bcm2835_bs_tag;
|
||||
const bus_space_handle_t ioh = BCM2835_IOPHYSTOVIRT(BCM2835_GPIO_BASE);
|
||||
const u_int mask = (1 << BCM2835_GPIO_GPFSEL_BITS_PER_PIN) - 1;
|
||||
const u_int regid = (pin / BCM2835_GPIO_GPFSEL_PINS_PER_REGISTER);
|
||||
const u_int shift = (pin % BCM2835_GPIO_GPFSEL_PINS_PER_REGISTER) *
|
||||
BCM2835_GPIO_GPFSEL_BITS_PER_PIN;
|
||||
uint32_t v;
|
||||
|
||||
v = bus_space_read_4(iot, ioh, BCM2835_GPIO_GPFSEL(regid));
|
||||
|
||||
return ((v >> shift) & mask);
|
||||
}
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
/* $NetBSD: bcm2835_gpio_subr.h,v 1.1 2013/01/05 19:55:18 jakllsch Exp $ */
|
||||
/* $NetBSD: bcm2835_gpio_subr.h,v 1.2 2014/04/22 18:51:35 kardel Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 2013 Jonathan A. Kollasch
|
||||
@ -31,6 +31,7 @@
|
||||
|
||||
#include <arm/broadcom/bcm2835_gpioreg.h>
|
||||
|
||||
void bcm2835gpio_function_select(u_int, u_int);
|
||||
void bcm2835gpio_function_select(u_int, u_int);
|
||||
u_int bcm2835gpio_function_read(u_int);
|
||||
|
||||
#endif /* _BROADCOM_BCM2835_GPIOVAR_H_ */
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
/* $NetBSD: bcm2835_gpioreg.h,v 1.2 2013/04/14 15:11:52 skrll Exp $ */
|
||||
/* $NetBSD: bcm2835_gpioreg.h,v 1.3 2014/04/22 18:51:35 kardel Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 2013 Jonathan A. Kollasch
|
||||
@ -33,6 +33,26 @@
|
||||
#define BCM2835_GPIO_GPFSEL_PINS_PER_REGISTER 10
|
||||
#define BCM2835_GPIO_GPFSEL_BITS_PER_PIN 3
|
||||
|
||||
#define BCM2835_GPIO_GPSET(x) (0x01C + (x) * sizeof(uint32_t))
|
||||
#define BCM2835_GPIO_GPSET_PINS_PER_REGISTER 32
|
||||
#define BCM2835_GPIO_GPCLR(x) (0x028 + (x) * sizeof(uint32_t))
|
||||
#define BCM2835_GPIO_GPCLR_PINS_PER_REGISTER BCM2835_GPIO_GPSET_PINS_PER_REGISTER
|
||||
#define BCM2835_GPIO_GPLEV(x) (0x034 + (x) * sizeof(uint32_t))
|
||||
#define BCM2835_GPIO_GPLEV_PINS_PER_REGISTER 32
|
||||
#define BCM2835_GPIO_GPEDS(x) (0x040 + (x) * sizeof(uint32_t))
|
||||
#define BCM2835_GPIO_GPREN(x) (0x04C + (x) * sizeof(uint32_t))
|
||||
#define BCM2835_GPIO_GPFEN(x) (0x058 + (x) * sizeof(uint32_t))
|
||||
#define BCM2835_GPIO_GPHEN(x) (0x064 + (x) * sizeof(uint32_t))
|
||||
#define BCM2835_GPIO_GPLEN(x) (0x070 + (x) * sizeof(uint32_t))
|
||||
#define BCM2835_GPIO_GPAREN(x) (0x07C + (x) * sizeof(uint32_t))
|
||||
#define BCM2835_GPIO_GPAFEN(x) (0x088 + (x) * sizeof(uint32_t))
|
||||
#define BCM2835_GPIO_GPPUD (0x094)
|
||||
#define BCM2835_GPIO_GPPUD_PULLOFF 0x0
|
||||
#define BCM2835_GPIO_GPPUD_PULLDOWN 0x1
|
||||
#define BCM2835_GPIO_GPPUD_PULLUP 0x2
|
||||
#define BCM2835_GPIO_GPPUDCLK(x) (0x098 + (x) * sizeof(uint32_t))
|
||||
#define BCM2835_GPIO_GPPUD_PINS_PER_REGISTER 32
|
||||
|
||||
#define BCM2835_GPIO_IN 00
|
||||
#define BCM2835_GPIO_OUT 01
|
||||
#define BCM2835_GPIO_ALT5 02
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
/* $NetBSD: bcm2835_obio.c,v 1.19 2013/10/15 09:07:48 skrll Exp $ */
|
||||
/* $NetBSD: bcm2835_obio.c,v 1.20 2014/04/22 18:51:35 kardel Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2012 The NetBSD Foundation, Inc.
|
||||
* Copyright (c) 2012, 2014 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
@ -30,7 +30,7 @@
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__KERNEL_RCSID(0, "$NetBSD: bcm2835_obio.c,v 1.19 2013/10/15 09:07:48 skrll Exp $");
|
||||
__KERNEL_RCSID(0, "$NetBSD: bcm2835_obio.c,v 1.20 2014/04/22 18:51:35 kardel Exp $");
|
||||
|
||||
#include "locators.h"
|
||||
#include "obio.h"
|
||||
@ -157,6 +157,20 @@ static const struct ambadev_locators bcm2835_ambadev_locs[] = {
|
||||
.ad_size = BCM2835_BSC_SIZE,
|
||||
.ad_intr = BCM2835_INT_BSC,
|
||||
},
|
||||
{
|
||||
/* gpio */
|
||||
.ad_name = "bcmgpio",
|
||||
.ad_addr = BCM2835_GPIO_BASE,
|
||||
.ad_size = BCM2835_GPIO_SIZE,
|
||||
.ad_intr = -1,
|
||||
},
|
||||
{
|
||||
/* gpio */
|
||||
.ad_name = "bcmgpio",
|
||||
.ad_addr = BCM2835_GPIO_BASE,
|
||||
.ad_size = BCM2835_GPIO_SIZE,
|
||||
.ad_intr = -1,
|
||||
},
|
||||
{
|
||||
/* Terminator */
|
||||
.ad_name = NULL,
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
# $NetBSD: files.bcm2835,v 1.20 2013/11/01 12:23:12 skrll Exp $
|
||||
# $NetBSD: files.bcm2835,v 1.21 2014/04/22 18:51:35 kardel Exp $
|
||||
#
|
||||
# Configuration info for Broadcom BCM2835 ARM Peripherals
|
||||
#
|
||||
@ -83,3 +83,8 @@ include "external/bsd/vchiq/conf/files.vchiq"
|
||||
device vcaudio: audiobus, auconv, mulaw, aurateconv
|
||||
attach vcaudio at vchiqbus
|
||||
file arch/arm/broadcom/bcm2835_vcaudio.c vcaudio
|
||||
|
||||
# GPIO
|
||||
device bcmgpio: gpiobus
|
||||
attach bcmgpio at obio
|
||||
file arch/arm/broadcom/bcm2835_gpio.c
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#
|
||||
# $NetBSD: RPI,v 1.43 2014/04/06 17:59:39 kardel Exp $
|
||||
# $NetBSD: RPI,v 1.44 2014/04/22 18:51:35 kardel Exp $
|
||||
#
|
||||
# RPi -- Raspberry Pi
|
||||
#
|
||||
@ -202,6 +202,10 @@ bcmpm0 at obio?
|
||||
# Random number generator
|
||||
bcmrng0 at obio?
|
||||
|
||||
# GPIO
|
||||
bcmgpio0 at obio? # pins 0 ... 31
|
||||
bcmgpio1 at obio? # pins 32 ... 53
|
||||
|
||||
# Arasan SD/MMC Interface
|
||||
sdhc* at obio?
|
||||
sdmmc* at sdhc?
|
||||
@ -231,8 +235,8 @@ spi* at spibus?
|
||||
#mcp23s17gpio2 at spi? slave 0 flags 2
|
||||
#mcp23s17gpio3 at spi? slave 0 flags 3
|
||||
|
||||
# gpio support (e. g. mcp23s17gpio)
|
||||
#gpio* at gpiobus?
|
||||
# gpio support (e. g. mcp23s17gpio, bcmgpio)
|
||||
gpio* at gpiobus?
|
||||
|
||||
# various options for wscons - we try to look as much like a standard
|
||||
# sun console as possible
|
||||
|
||||
Loading…
Reference in New Issue
Block a user