[PATCH v2] ARM: mxs: add support for I2SE's duckbill series

[Shawn Guo]

On Sat, Nov 09, 2013 at 12:14:16PM +0100, Michael Heimpold wrote:
> Signed-off-by: Michael Heimpold <mhei at heimpold.de>
> ---
> 
> Changelog v1->v2:
> - rebased on git://git.linaro.org/people/shawnguo/linux-2.6.git for-next
> - used macros for pinctrl constants
> - used generic name for fixed regulator node
> 
>  arch/arm/boot/dts/Makefile           |    1 +
>  arch/arm/boot/dts/imx28-duckbill.dts |  121 ++++++++++++++++++++++++++++++++++
>  arch/arm/mach-mxs/mach-mxs.c         |   13 ++++
>  3 files changed, 135 insertions(+)
>  create mode 100644 arch/arm/boot/dts/imx28-duckbill.dts
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 3159ab6..5801ed0 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -172,6 +172,7 @@ dtb-$(CONFIG_ARCH_MXS) += imx23-evk.dtb \
>  	imx28-cfa10056.dtb \
>  	imx28-cfa10057.dtb \
>  	imx28-cfa10058.dtb \
> +	imx28-duckbill.dtb \
>  	imx28-evk.dtb \
>  	imx28-m28cu3.dtb \
>  	imx28-m28evk.dtb \
> diff --git a/arch/arm/boot/dts/imx28-duckbill.dts b/arch/arm/boot/dts/imx28-duckbill.dts
> new file mode 100644
> index 0000000..88733c1
> --- /dev/null
> +++ b/arch/arm/boot/dts/imx28-duckbill.dts
> @@ -0,0 +1,121 @@
> +/*
> + * Copyright (C) 2013 Michael Heimpold <mhei at heimpold.de>
> + *
> + * 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/ "imx28.dtsi"

#include "imx28.dtsi"

Otherwise, the DTS does not compile at all.

I just fixed it up and applied the patch.

Shawn

> +
> +/ {
> +	model = "I2SE Duckbill";
> +	compatible = "i2se,duckbill", "fsl,imx28";
> +
> +	memory {
> +		reg = <0x40000000 0x08000000>;
> +	};
> +
> +	apb at 80000000 {
> +		apbh at 80000000 {
> +			ssp0: ssp at 80010000 {
> +				compatible = "fsl,imx28-mmc";
> +				pinctrl-names = "default";
> +				pinctrl-0 = <&mmc0_8bit_pins_a
> +					&mmc0_cd_cfg &mmc0_sck_cfg>;
> +				bus-width = <8>;
> +				vmmc-supply = <&reg_3p3v>;
> +				status = "okay";
> +			};
> +
> +			pinctrl at 80018000 {
> +				pinctrl-names = "default";
> +				pinctrl-0 = <&hog_pins_a>;
> +
> +				hog_pins_a: hog at 0 {
> +					reg = <0>;
> +					fsl,pinmux-ids = <
> +						MX28_PAD_ENET0_RX_CLK__GPIO_4_13 /* PHY Reset */
> +					>;
> +					fsl,drive-strength = <MXS_DRIVE_4mA>;
> +					fsl,voltage = <MXS_VOLTAGE_HIGH>;
> +					fsl,pull-up = <MXS_PULL_DISABLE>;
> +				};
> +
> +				led_pins_a: led_gpio at 0 {
> +					reg = <0>;
> +					fsl,pinmux-ids = <
> +						MX28_PAD_AUART1_RX__GPIO_3_4
> +						MX28_PAD_AUART1_TX__GPIO_3_5
> +					>;
> +					fsl,drive-strength = <MXS_DRIVE_4mA>;
> +					fsl,voltage = <MXS_VOLTAGE_HIGH>;
> +					fsl,pull-up = <MXS_PULL_DISABLE>;
> +				};
> +			};
> +		};
> +
> +		apbx at 80040000 {
> +			duart: serial at 80074000 {
> +				pinctrl-names = "default";
> +				pinctrl-0 = <&duart_pins_a>;
> +				status = "okay";
> +			};
> +
> +			usbphy0: usbphy at 8007c000 {
> +				status = "okay";
> +			};
> +		};
> +	};
> +
> +	ahb at 80080000 {
> +		usb0: usb at 80080000 {
> +			status = "okay";
> +		};
> +
> +		mac0: ethernet at 800f0000 {
> +			phy-mode = "rmii";
> +			pinctrl-names = "default";
> +			pinctrl-0 = <&mac0_pins_a>;
> +			phy-supply = <&reg_3p3v>;
> +			phy-reset-gpios = <&gpio4 13 0>;
> +			phy-reset-duration = <100>;
> +			status = "okay";
> +		};
> +	};
> +
> +	regulators {
> +		compatible = "simple-bus";
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		reg_3p3v: regulator at 0 {
> +			compatible = "regulator-fixed";
> +			reg = <0>;
> +			regulator-name = "3P3V";
> +			regulator-min-microvolt = <3300000>;
> +			regulator-max-microvolt = <3300000>;
> +			regulator-always-on;
> +		};
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&led_pins_a>;
> +
> +		status {
> +			label = "duckbill:green:status";
> +			gpios = <&gpio3 5 0>;
> +		};
> +
> +		failure {
> +			label = "duckbill:red:status";
> +			gpios = <&gpio3 4 0>;
> +		};
> +	};
> +};
> diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c
> index 1dc5acd..3982e12 100644
> --- a/arch/arm/mach-mxs/mach-mxs.c
> +++ b/arch/arm/mach-mxs/mach-mxs.c
> @@ -157,6 +157,7 @@ enum mac_oui {
>  	OUI_FSL,
>  	OUI_DENX,
>  	OUI_CRYSTALFONTZ,
> +	OUI_I2SE,
>  };
>  
>  static void __init update_fec_mac_prop(enum mac_oui oui)
> @@ -211,6 +212,11 @@ static void __init update_fec_mac_prop(enum mac_oui oui)
>  			macaddr[1] = 0xb9;
>  			macaddr[2] = 0xe1;
>  			break;
> +		case OUI_I2SE:
> +			macaddr[0] = 0x00;
> +			macaddr[1] = 0x01;
> +			macaddr[2] = 0x87;
> +			break;
>  		}
>  		val = ocotp[i];
>  		macaddr[3] = (val >> 16) & 0xff;
> @@ -330,6 +336,11 @@ static void __init crystalfontz_init(void)
>  	update_fec_mac_prop(OUI_CRYSTALFONTZ);
>  }
>  
> +static void __init duckbill_init(void)
> +{
> +	update_fec_mac_prop(OUI_I2SE);
> +}
> +
>  static void __init m28cu3_init(void)
>  {
>  	update_fec_mac_prop(OUI_DENX);
> @@ -462,6 +473,8 @@ static void __init mxs_machine_init(void)
>  		apx4devkit_init();
>  	else if (of_machine_is_compatible("crystalfontz,cfa10036"))
>  		crystalfontz_init();
> +	else if (of_machine_is_compatible("i2se,duckbill"))
> +		duckbill_init();
>  	else if (of_machine_is_compatible("msr,m28cu3"))
>  		m28cu3_init();
>  
> -- 
> 1.7.10.4
>