Rpi 3.18.y

Documentation/video4linux/bcm2835-v4l2.txt

@@ -0,0 +1,60 @@
+
+BCM2835 (aka Raspberry Pi) V4L2 driver
+======================================
+
+1. Copyright
+============
+
+Copyright © 2013 Raspberry Pi (Trading) Ltd.
+
+2. License
+==========
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+3. Quick Start
+==============
+
+You need a version 1.0 or later of v4l2-ctl, available from:
+	git://git.linuxtv.org/v4l-utils.git
+
+$ sudo modprobe bcm2835-v4l2
+
+Turn on the overlay:
+
+$ v4l2-ctl --overlay=1
+
+Turn off the overlay:
+
+$ v4l2-ctl --overlay=0
+
+Set the capture format for video:
+
+$ v4l2-ctl  --set-fmt-video=width=1920,height=1088,pixelformat=4
+
+(Note: 1088 not 1080).
+
+Capture:
+
+$ v4l2-ctl --stream-mmap=3 --stream-count=100 --stream-to=somefile.h264
+
+Stills capture:
+
+$ v4l2-ctl  --set-fmt-video=width=2592,height=1944,pixelformat=3
+$ v4l2-ctl --stream-mmap=3 --stream-count=1 --stream-to=somefile.jpg
+
+List of available formats:
+
+$ v4l2-ctl --list-formats

arch/arm/Kconfig

@@ -381,6 +381,23 @@ config ARCH_AT91
 	  This enables support for systems based on Atmel
 	  AT91RM9200 and AT91SAM9* processors.
 
+config ARCH_BCM2708
+	bool "Broadcom BCM2708 family"
+	select CPU_V6
+	select ARM_AMBA
+	select HAVE_SCHED_CLOCK
+	select NEED_MACH_GPIO_H
+	select NEED_MACH_MEMORY_H
+	select COMMON_CLK
+	select ARCH_HAS_CPUFREQ
+	select GENERIC_CLOCKEVENTS
+	select ARM_ERRATA_411920
+	select MACH_BCM2708
+	select VC4
+	select FIQ
+	help
+	  This enables support for Broadcom BCM2708 boards.
+
 config ARCH_CLPS711X
 	bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
 	select ARCH_REQUIRE_GPIOLIB
@@ -972,6 +989,7 @@ source "arch/arm/plat-versatile/Kconfig"
 source "arch/arm/mach-vt8500/Kconfig"
 
 source "arch/arm/mach-w90x900/Kconfig"
+source "arch/arm/mach-bcm2708/Kconfig"
 
 source "arch/arm/mach-zynq/Kconfig"
 

arch/arm/Kconfig.debug

@@ -985,6 +985,14 @@ choice
 		  options; the platform specific options are deprecated
 		  and will be soon removed.
 
+	config DEBUG_BCM2708_UART0
+		bool "Broadcom BCM2708 UART0 (PL011)"
+		depends on MACH_BCM2708
+		help
+		  Say Y here if you want the debug print routines to direct
+		  their output to UART 0. The port must have been initialised
+		  by the boot-loader before use.
+
 endchoice
 
 config DEBUG_EXYNOS_UART

arch/arm/Makefile

@@ -146,6 +146,7 @@ textofs-$(CONFIG_ARCH_AXXIA) := 0x00308000
 machine-$(CONFIG_ARCH_AT91)		+= at91
 machine-$(CONFIG_ARCH_AXXIA)		+= axxia
 machine-$(CONFIG_ARCH_BCM)		+= bcm
+machine-$(CONFIG_ARCH_BCM2708)		+= bcm2708
 machine-$(CONFIG_ARCH_BERLIN)		+= berlin
 machine-$(CONFIG_ARCH_CLPS711X)		+= clps711x
 machine-$(CONFIG_ARCH_CNS3XXX)		+= cns3xxx

arch/arm/boot/dts/Makefile

@@ -53,6 +53,8 @@ dtb-$(CONFIG_ARCH_AT91)	+= at91-sama5d4ek.dtb
 
 dtb-$(CONFIG_ARCH_ATLAS6) += atlas6-evb.dtb
 dtb-$(CONFIG_ARCH_AXXIA) += axm5516-amarillo.dtb
+dtb-$(CONFIG_BCM2708_DT) += bcm2708-rpi-b.dtb
+dtb-$(CONFIG_BCM2708_DT) += bcm2708-rpi-b-plus.dtb
 dtb-$(CONFIG_ARCH_BCM2835) += bcm2835-rpi-b.dtb
 dtb-$(CONFIG_ARCH_BCM_5301X) += bcm4708-netgear-r6250.dtb
 dtb-$(CONFIG_ARCH_BCM_63XX) += bcm963138dvt.dtb
@@ -519,6 +521,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt6589-aquaris5.dtb
 
 targets += dtbs dtbs_install
 targets += $(dtb-y)
+
 endif
 
 # *.dtb used to be generated in the directory above. Clean out the

arch/arm/boot/dts/bcm2708-rpi-b-plus.dts

@@ -0,0 +1,101 @@
+/dts-v1/;
+
+/include/ "bcm2708.dtsi"
+
+/ {
+	compatible = "brcm,bcm2708";
+	model = "Raspberry Pi Model B+";
+
+	aliases {
+		soc = &soc;
+		spi0 = &spi0;
+		i2c0 = &i2c0;
+		i2c1 = &i2c1;
+		i2s  = &i2s;
+		gpio = &gpio;
+		intc = &intc;
+		leds = &leds;
+		sound = &sound;
+	};
+
+	sound: sound {
+	};
+};
+
+&gpio {
+	spi0_pins: spi0_pins {
+		brcm,pins = <7 8 9 10 11>;
+		brcm,function = <4>; /* alt0 */
+	};
+
+	i2c0_pins: i2c0 {
+		brcm,pins = <0 1>;
+		brcm,function = <4>;
+	};
+
+	i2c1_pins: i2c1 {
+		brcm,pins = <2 3>;
+		brcm,function = <4>;
+	};
+
+	i2s_pins: i2s {
+		brcm,pins = <18 19 20 21>;
+		brcm,function = <4>; /* alt0 */
+	};
+};
+
+&spi0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi0_pins>;
+
+	spidev@0{
+		compatible = "spidev";
+		reg = <0>;	/* CE0 */
+		#address-cells = <1>;
+		#size-cells = <0>;
+		spi-max-frequency = <500000>;
+	};
+
+	spidev@1{
+		compatible = "spidev";
+		reg = <1>;	/* CE1 */
+		#address-cells = <1>;
+		#size-cells = <0>;
+		spi-max-frequency = <500000>;
+	};
+};
+
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins>;
+	clock-frequency = <100000>;
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
+	clock-frequency = <100000>;
+};
+
+&i2s {
+	#sound-dai-cells = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2s_pins>;
+};
+
+&act_led {
+	gpios = <&gpio 47 0>;
+};
+
+/ {
+	__overrides__ {
+		i2s = <&i2s>,"status";
+		spi = <&spi0>,"status";
+		i2c0 = <&i2c0>,"status";
+		i2c1 = <&i2c1>,"status";
+
+		act_led_gpio = <&act_led>,"gpios:4";
+		act_led_activelow = <&act_led>,"gpios:8";
+		act_led_trigger = <&act_led>,"linux,default-trigger";
+	};
+};

arch/arm/boot/dts/bcm2708-rpi-b.dts

@@ -0,0 +1,101 @@
+/dts-v1/;
+
+/include/ "bcm2708.dtsi"
+
+/ {
+	compatible = "brcm,bcm2708";
+	model = "Raspberry Pi Model B";
+
+	aliases {
+		soc = &soc;
+		spi0 = &spi0;
+		i2c0 = &i2c0;
+		i2c1 = &i2c1;
+		i2s  = &i2s;
+		gpio = &gpio;
+		intc = &intc;
+		leds = &leds;
+		sound = &sound;
+	};
+
+	sound: sound {
+	};
+};
+
+&gpio {
+	spi0_pins: spi0_pins {
+		brcm,pins = <7 8 9 10 11>;
+		brcm,function = <4>; /* alt0 */
+	};
+
+	i2c0_pins: i2c0 {
+		brcm,pins = <0 1>;
+		brcm,function = <4>;
+	};
+
+	i2c1_pins: i2c1 {
+		brcm,pins = <2 3>;
+		brcm,function = <4>;
+	};
+
+	i2s_pins: i2s {
+		brcm,pins = <28 29 30 31>;
+		brcm,function = <4>; /* alt0 */
+	};
+};
+
+&spi0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi0_pins>;
+
+	spidev@0{
+		compatible = "spidev";
+		reg = <0>;	/* CE0 */
+		#address-cells = <1>;
+		#size-cells = <0>;
+		spi-max-frequency = <500000>;
+	};
+
+	spidev@1{
+		compatible = "spidev";
+		reg = <1>;	/* CE1 */
+		#address-cells = <1>;
+		#size-cells = <0>;
+		spi-max-frequency = <500000>;
+	};
+};
+
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins>;
+	clock-frequency = <100000>;
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
+	clock-frequency = <100000>;
+};
+
+&i2s {
+	#sound-dai-cells = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2s_pins>;
+};
+
+&act_led {
+	gpios = <&gpio 16 1>;
+};
+
+/ {
+	__overrides__ {
+		i2s = <&i2s>,"status";
+		spi = <&spi0>,"status";
+		i2c0 = <&i2c0>,"status";
+		i2c1 = <&i2c1>,"status";
+
+		act_led_gpio = <&act_led>,"gpios:4";
+		act_led_activelow = <&act_led>,"gpios:8";
+		act_led_trigger = <&act_led>,"linux,default-trigger";
+	};
+};