91cc58af37
On Raspberry Pi platform GPIO controller also responsible for pins multiplexing. Pi code predates proper FDT support in FreeBSD so a lot of pinmux info is hardcoded. This patch: - Implements pinctl methods in bcm2835_gpio - Converts all devices with ad-hoc pinmux info to proper pin control mechanisms and adds pinmux info in FreeBSD's custom dts files. - Adds fdt_pinctrl option to RPI2 and RPI-B kernels - Adds SPI pinmux config to FreeBSD's customization of GNU DTS. Reviewed by: imp, manu Differential Revision: https://reviews.freebsd.org/D14104
104 lines
2.8 KiB
Plaintext
104 lines
2.8 KiB
Plaintext
/*
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* Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@bluezbox.com>
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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 ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include "bcm2836-rpi-2-b.dts"
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/ {
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/* This is only necessary for FDT_DTB_STATIC */
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memory {
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device_type = "memory";
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reg = <0 0x8000000>; /* 128MB, Set by VideoCore */
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};
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rpi_ft5406 {
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compatible = "rpi,rpi-ft5406";
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status = "okay";
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};
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/* Temporary patches */
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soc {
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sdhost: mmc@7e202000 {
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status = "disabled";
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}
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sdhci@7e300000 {
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status = "okay";
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};
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spi@7e204000 {
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status = "okay";
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pinctrl-names = "default";
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pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
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};
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gpio@7e200000 {
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/* Pins that can short 3.3V to GND in output mode: 46-47
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* Pins used by VideoCore: 48-53
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*/
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broadcom,read-only = <46>, <47>, <48>, <49>, <50>,
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<51>, <52>, <53>;
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/* Reserved */
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pins_reserved: reserved {
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broadcom,pins = <48>, <49>, <50>, <51>, <52>,
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<53>;
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};
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spi0_pins: spi0_pins {
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brcm,pins = <9 10 11>;
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brcm,function = <4>; /* alt0 */
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};
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spi0_cs_pins: spi0_cs_pins {
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brcm,pins = <8 7>;
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brcm,function = <1>; /* output */
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};
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}
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vchiq {
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compatible = "brcm,bcm2835-vchiq";
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reg = <0x7e00b840 0xf>;
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interrupts = <0 2>;
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cache-line-size = <32>;
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};
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display {
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compatible = "broadcom,bcm2835-fb", "broadcom,bcm2708-fb";
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broadcom,vc-mailbox = <&mailbox>;
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broadcom,vc-channel = <1>;
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broadcom,width = <0>; /* Set by VideoCore */
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broadcom,height = <0>; /* Set by VideoCore */
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broadcom,depth = <0>; /* Set by VideoCore */
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};
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};
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};
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