Re: [PATCH] ARM: dts: imx5: Add dts files for USB armory.

[Andrej Rosano]

Hi Shawn,

On Mon, Apr 27, 2015 at 07:57:48PM +0800, Shawn Guo wrote:
> +Peter
> 
> On Fri, Mar 27, 2015 at 01:23:00PM -0700, Vagrant Cascadian wrote:
> > Add support for the USB armory board by Inverse Path. This board
> > features a Freescale iMX53 SoC, 512MB RAM, and USB OTG operating in
> > either peripheral or host mode, and 5 GPIO pins.
> > 
> > One .dtb is generated for operating in peripheral mode, and one is
> > generated for operating in host mode.
> 
> Vagrant,
> 
> Does that mean this board can work in peripheral or host mode but can
> switch between them at run-time?

The board can switch between host and peripheral mode without any
hardware modification, but it need to reboot itself to pick up the
corresponding dtb file. I am not sure if there is possible using the
devicetree overlay feature to switch between the two modes runtime.

Andrej

> 
> Shawn
> 
> > 
> > Signed-off-by: Vagrant Cascadian <vagrant@xxxxxxxxxx>
> > Cc: Andrej Rosano <andrej@xxxxxxxxxxxxxxx>
> > Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> > Cc: Pawel Moll <pawel.moll@xxxxxxx>
> > Cc: Mark Rutland <mark.rutland@xxxxxxx>
> > Cc: Ian Campbell <ijc+devicetree@xxxxxxxxxxxxxx>
> > Cc: Kumar Gala <galak@xxxxxxxxxxxxxx>
> > Cc: Russell King <linux@xxxxxxxxxxxxxxxx>
> > Cc: Shawn Guo <shawn.guo@xxxxxxxxxx>
> > Cc: Sascha Hauer <kernel@xxxxxxxxxxxxxx>
> > Cc: devicetree@xxxxxxxxxxxxxxx
> > Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> > Cc: linux-kernel@xxxxxxxxxxxxxxx
> > ---
> >  arch/arm/boot/dts/Makefile                      |   2 +
> >  arch/arm/boot/dts/imx53-usbarmory-host_mode.dts |  17 +++
> >  arch/arm/boot/dts/imx53-usbarmory.dts           |  13 ++
> >  arch/arm/boot/dts/imx53-usbarmory.dtsi          | 183 ++++++++++++++++++++++++
> >  4 files changed, 215 insertions(+)
> >  create mode 100644 arch/arm/boot/dts/imx53-usbarmory-host_mode.dts
> >  create mode 100644 arch/arm/boot/dts/imx53-usbarmory.dts
> >  create mode 100644 arch/arm/boot/dts/imx53-usbarmory.dtsi
> > 
> > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> > index a1c776b..bd2258b 100644
> > --- a/arch/arm/boot/dts/Makefile
> > +++ b/arch/arm/boot/dts/Makefile
> > @@ -244,6 +244,8 @@ dtb-$(CONFIG_SOC_IMX53) += \
> >  	imx53-smd.dtb \
> >  	imx53-tx53-x03x.dtb \
> >  	imx53-tx53-x13x.dtb \
> > +	imx53-usbarmory.dtb \
> > +	imx53-usbarmory-host_mode.dtb \
> >  	imx53-voipac-bsb.dtb
> >  dtb-$(CONFIG_SOC_IMX6Q) += \
> >  	imx6dl-aristainetos_4.dtb \
> > diff --git a/arch/arm/boot/dts/imx53-usbarmory-host_mode.dts b/arch/arm/boot/dts/imx53-usbarmory-host_mode.dts
> > new file mode 100644
> > index 0000000..a94cb1d
> > --- /dev/null
> > +++ b/arch/arm/boot/dts/imx53-usbarmory-host_mode.dts
> > @@ -0,0 +1,17 @@
> > +/*
> > + * Copyright 2015 Inverse Path, S.r.l.
> > + *
> > + * The code contained herein is licensed under the GNU General Public
> > + * License. You may obtain a copy of the GNU General Public License
> > + * Version 2 or later at the following locations:
> > + *
> > + * http://www.opensource.org/licenses/gpl-license.html
> > + * http://www.gnu.org/copyleft/gpl.html
> > + */
> > +
> > +/dts-v1/;
> > +#include "imx53-usbarmory.dtsi"
> > +
> > +&usbotg {
> > +	dr_mode = "host";
> > +};
> > diff --git a/arch/arm/boot/dts/imx53-usbarmory.dts b/arch/arm/boot/dts/imx53-usbarmory.dts
> > new file mode 100644
> > index 0000000..c86a4d8
> > --- /dev/null
> > +++ b/arch/arm/boot/dts/imx53-usbarmory.dts
> > @@ -0,0 +1,13 @@
> > +/*
> > + * Copyright 2015 Inverse Path, S.r.l.
> > + *
> > + * The code contained herein is licensed under the GNU General Public
> > + * License. You may obtain a copy of the GNU General Public License
> > + * Version 2 or later at the following locations:
> > + *
> > + * http://www.opensource.org/licenses/gpl-license.html
> > + * http://www.gnu.org/copyleft/gpl.html
> > + */
> > +
> > +/dts-v1/;
> > +#include "imx53-usbarmory.dtsi"
> > diff --git a/arch/arm/boot/dts/imx53-usbarmory.dtsi b/arch/arm/boot/dts/imx53-usbarmory.dtsi
> > new file mode 100644
> > index 0000000..b4a9052
> > --- /dev/null
> > +++ b/arch/arm/boot/dts/imx53-usbarmory.dtsi
> > @@ -0,0 +1,183 @@
> > +/*
> > + * Copyright 2015 Inverse Path, S.r.l.
> > + *
> > + * The code contained herein is licensed under the GNU General Public
> > + * License. You may obtain a copy of the GNU General Public License
> > + * Version 2 or later at the following locations:
> > + *
> > + * http://www.opensource.org/licenses/gpl-license.html
> > + * http://www.gnu.org/copyleft/gpl.html
> > + */
> > +
> > +#include "imx53.dtsi"
> > +
> > +/ {
> > +	model = "Inverse Path USB armory";
> > +	compatible = "inversepath,imx53-usbarmory", "fsl,imx53";
> > +};
> > +
> > +/ {
> > +	chosen {
> > +		stdout-path = &uart1;
> > +	};
> > +
> > +	memory {
> > +		reg = <0x70000000 0x20000000>;
> > +	};
> > +
> > +	leds {
> > +		compatible = "gpio-leds";
> > +		pinctrl-names = "default";
> > +		pinctrl-0 = <&led_pin_gpio4_27>;
> > +
> > +		user {
> > +			label = "LED";
> > +			gpios = <&gpio4 27 0>;
> > +			linux,default-trigger = "heartbeat";
> > +		};
> > +	};
> > +};
> > +
> > +&esdhc1 {
> > +	pinctrl-names = "default";
> > +	pinctrl-0 = <&pinctrl_esdhc1>;
> > +	status = "okay";
> > +};
> > +
> > +&iomuxc {
> > +	pinctrl-names = "default";
> > +	pinctrl-0 = <&pinctrl_hog>;
> > +
> > +	imx53-usbarmory {
> > +		pinctrl_hog: hoggrp {
> > +			fsl,pins = <
> > +				MX53_PAD_GPIO_0__CCM_SSI_EXT1_CLK 0x80000000
> > +				MX53_PAD_GPIO_8__GPIO1_8          0x80000000
> > +				MX53_PAD_PATA_DATA14__GPIO2_14    0x80000000
> > +				MX53_PAD_PATA_DATA15__GPIO2_15    0x80000000
> > +				MX53_PAD_EIM_DA11__GPIO3_11       0x80000000
> > +				MX53_PAD_EIM_DA12__GPIO3_12       0x80000000
> > +				MX53_PAD_PATA_DA_0__GPIO7_6       0x80000000
> > +				MX53_PAD_PATA_DA_2__GPIO7_8	  0x80000000
> > +				MX53_PAD_GPIO_16__GPIO7_11        0x80000000
> > +			>;
> > +		};
> > +
> > +		led_pin_gpio4_27: led_gpio4_27@0 {
> > +			fsl,pins = <
> > +				MX53_PAD_DISP0_DAT6__GPIO4_27 0x80000000
> > +			>;
> > +		};
> > +
> > +		pinctrl_esdhc1: esdhc1grp {
> > +			fsl,pins = <
> > +				MX53_PAD_SD1_DATA0__ESDHC1_DAT0		0x1d5
> > +				MX53_PAD_SD1_DATA1__ESDHC1_DAT1		0x1d5
> > +				MX53_PAD_SD1_DATA2__ESDHC1_DAT2		0x1d5
> > +				MX53_PAD_SD1_DATA3__ESDHC1_DAT3		0x1d5
> > +				MX53_PAD_SD1_CMD__ESDHC1_CMD		0x1d5
> > +				MX53_PAD_SD1_CLK__ESDHC1_CLK		0x1d5
> > +			>;
> > +		};
> > +
> > +		pinctrl_i2c1: i2c1grp {
> > +			fsl,pins = <
> > +				MX53_PAD_CSI0_DAT8__I2C1_SDA	0xc0000000
> > +				MX53_PAD_CSI0_DAT9__I2C1_SCL	0xc0000000
> > +			>;
> > +		};
> > +
> > +		pinctrl_uart1: uart1grp {
> > +			fsl,pins = <
> > +				MX53_PAD_CSI0_DAT10__UART1_TXD_MUX	0x1e4
> > +				MX53_PAD_CSI0_DAT11__UART1_RXD_MUX	0x1e4
> > +			>;
> > +		};
> > +	};
> > +};
> > +
> > +&uart1 {
> > +	pinctrl-names = "default";
> > +	pinctrl-0 = <&pinctrl_uart1>;
> > +	status = "okay";
> > +};
> > +
> > +&vpu {
> > +	status = "okay";
> > +};
> > +
> > +&usbotg {
> > +	dr_mode = "peripheral";
> > +	status = "okay";
> > +};
> > +
> > +&i2c1 {
> > +	ltc3589: pmic@34 {
> > +		compatible = "lltc,ltc3589-2";
> > +		reg = <0x34>;
> > +
> > +		regulators {
> > +			sw1_reg: sw1 {
> > +				regulator-min-microvolt = <591930>;
> > +				regulator-max-microvolt = <1224671>;
> > +				lltc,fb-voltage-divider = <100000 158000>;
> > +				regulator-ramp-delay = <7000>;
> > +				regulator-boot-on;
> > +				regulator-always-on;
> > +			};
> > +
> > +			sw2_reg: sw2 {
> > +				regulator-min-microvolt = <704123>;
> > +				regulator-max-microvolt = <1456803>;
> > +				lltc,fb-voltage-divider = <180000 191000>;
> > +				regulator-ramp-delay = <7000>;
> > +				regulator-boot-on;
> > +				regulator-always-on;
> > +			};
> > +
> > +			sw3_reg: sw3 {
> > +				regulator-min-microvolt = <1341250>;
> > +				regulator-max-microvolt = <2775000>;
> > +				lltc,fb-voltage-divider = <270000 100000>;
> > +				regulator-ramp-delay = <7000>;
> > +				regulator-boot-on;
> > +				regulator-always-on;
> > +			};
> > +
> > +			bb_out_reg: bb-out {
> > +				regulator-min-microvolt = <3387341>;
> > +				regulator-max-microvolt = <3387341>;
> > +				lltc,fb-voltage-divider = <511000 158000>;
> > +				regulator-boot-on;
> > +				regulator-always-on;
> > +			};
> > +			ldo1_reg: ldo1 {
> > +				regulator-min-microvolt = <1306329>;
> > +				regulator-max-microvolt = <1306329>;
> > +				lltc,fb-voltage-divider = <100000 158000>;
> > +				regulator-boot-on;
> > +				regulator-always-on;
> > +			};
> > +
> > +			ldo2_reg: ldo2 {
> > +				regulator-min-microvolt = <704123>;
> > +				regulator-max-microvolt = <1456806>;
> > +				lltc,fb-voltage-divider = <180000 191000>;
> > +				regulator-ramp-delay = <7000>;
> > +				regulator-boot-on;
> > +				regulator-always-on;
> > +			};
> > +
> > +			ldo3_reg: ldo3 {
> > +				regulator-min-microvolt = <2800000>;
> > +				regulator-max-microvolt = <2800000>;
> > +				regulator-boot-on;
> > +			};
> > +
> > +			ldo4_reg: ldo4 {
> > +				regulator-min-microvolt = <1200000>;
> > +				regulator-max-microvolt = <3200000>;
> > +			};
> > +		};
> > +	};
> > +};
> > -- 
> > 2.1.4
> > 
> 
> 

--
Andrej Rosano                                           Inverse Path Srl
<andrej@xxxxxxxxxxxxxxx>                      http://www.inversepath.com

0x01939B21            5BB8 574E 68E8 D841 E18F  D5E9 CEAD E0CF 0193 9B21
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