[PATCH 1/2] ARM: dts: imx6ul: Add DTS for liteSOM module

[PATCH 1/2] ARM: dts: imx6ul: Add DTS for liteSOM module

[Marcin Niestroj]

This is a SOM (System on Module), so it will be part of another boards.
Hence, this is a "dtsi" file that will be included from another device
tree files.

Hardware specification:
 * Freescale i.MX6UL SoC
 * up to 512 MB RAM
 * eMMC on uSDHC2

Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
---
 arch/arm/boot/dts/imx6ul-litesom.dtsi | 52 +++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 arch/arm/boot/dts/imx6ul-litesom.dtsi

diff --git a/arch/arm/boot/dts/imx6ul-litesom.dtsi b/arch/arm/boot/dts/imx6ul-litesom.dtsi
new file mode 100644
index 0000000..7a7f47d
--- /dev/null
+++ b/arch/arm/boot/dts/imx6ul-litesom.dtsi
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2016 Grinn
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include "imx6ul.dtsi"
+
+/ {
+	model = "Grinn i.MX6UL liteSOM";
+	compatible = "grinn,imx6ul-litesom", "fsl,imx6ul";
+
+	memory {
+		reg = <0x80000000 0x20000000>;
+	};
+};
+
+&cpu0 {
+	arm-supply = <&reg_arm>;
+	soc-supply = <&reg_soc>;
+};
+
+&iomuxc {
+	pinctrl_usdhc2: usdhc2grp {
+		fsl,pins = <
+			MX6UL_PAD_NAND_RE_B__USDHC2_CLK	    0x10069
+			MX6UL_PAD_NAND_WE_B__USDHC2_CMD	    0x17059
+			MX6UL_PAD_NAND_DATA00__USDHC2_DATA0 0x17059
+			MX6UL_PAD_NAND_DATA01__USDHC2_DATA1 0x17059
+			MX6UL_PAD_NAND_DATA02__USDHC2_DATA2 0x17059
+			MX6UL_PAD_NAND_DATA03__USDHC2_DATA3 0x17059
+			MX6UL_PAD_NAND_DATA04__USDHC2_DATA4 0x17059
+			MX6UL_PAD_NAND_DATA05__USDHC2_DATA5 0x17059
+			MX6UL_PAD_NAND_DATA06__USDHC2_DATA6 0x17059
+			MX6UL_PAD_NAND_DATA07__USDHC2_DATA7 0x17059
+			MX6UL_PAD_NAND_ALE__USDHC2_RESET_B  0x17059
+		>;
+	};
+};
+
+&usdhc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc2>;
+	no-1-8-v;
+	non-removable;
+	keep-power-in-suspend;
+	wakeup-source;
+	bus-width = <8>;
+	status = "okay";
+};
-- 
2.9.3

[PATCH 2/2] ARM: dts: imx6ul: Add DTS for liteBoard

[Marcin Niestroj]

liteBoard is a development board which uses liteSOM as its base.

Hardware specification:
 * liteSOM (i.MX6UL, DRAM, eMMC)
 * Ethernet PHY (id 0)
 * USB host (usb_otg1)
 * MicroSD slot (uSDHC1)

Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
---
 arch/arm/boot/dts/Makefile             |   1 +
 arch/arm/boot/dts/imx6ul-liteboard.dts | 118 +++++++++++++++++++++++++++++++++
 2 files changed, 119 insertions(+)
 create mode 100644 arch/arm/boot/dts/imx6ul-liteboard.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index faacd52..b149313 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -407,6 +407,7 @@ dtb-$(CONFIG_SOC_IMX6SX) += \
 	imx6sx-sdb.dtb
 dtb-$(CONFIG_SOC_IMX6UL) += \
 	imx6ul-14x14-evk.dtb \
+	imx6ul-liteboard.dtb \
 	imx6ul-pico-hobbit.dtb \
 	imx6ul-tx6ul-0010.dtb \
 	imx6ul-tx6ul-0011.dtb \
diff --git a/arch/arm/boot/dts/imx6ul-liteboard.dts b/arch/arm/boot/dts/imx6ul-liteboard.dts
new file mode 100644
index 0000000..d75b70a
--- /dev/null
+++ b/arch/arm/boot/dts/imx6ul-liteboard.dts
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2016 Grinn
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/dts-v1/;
+
+#include "imx6ul-litesom.dtsi"
+
+/ {
+	model = "Grinn i.MX6UL liteBoard";
+	compatible = "grinn,imx6ul-liteboard", "grinn,imx6ul-litesom",
+		     "fsl,imx6ul";
+
+	chosen {
+		stdout-path = &uart1;
+	};
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		reg_usb_otg1_vbus: usb_otg1_regulator {
+			compatible = "regulator-fixed";
+			pinctrl-names = "defaullt";
+			pinctrl-0 = <&pinctrl_usb_otg1_vbus>;
+			regulator-name = "usb_otg1_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			gpio = <&gpio2 8 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&iomuxc {
+	pinctrl_enet1: enet1grp {
+		fsl,pins = <
+			MX6UL_PAD_GPIO1_IO07__ENET1_MDC		0x1b0b0
+			MX6UL_PAD_GPIO1_IO06__ENET1_MDIO	0x1b0b0
+			MX6UL_PAD_ENET1_RX_EN__ENET1_RX_EN	0x1b0b0
+			MX6UL_PAD_ENET1_RX_ER__ENET1_RX_ER	0x1b0b0
+			MX6UL_PAD_ENET1_RX_DATA0__ENET1_RDATA00 0x1b0b0
+			MX6UL_PAD_ENET1_RX_DATA1__ENET1_RDATA01 0x1b0b0
+			MX6UL_PAD_ENET1_TX_EN__ENET1_TX_EN	0x1b0b0
+			MX6UL_PAD_ENET1_TX_DATA0__ENET1_TDATA00 0x1b0b0
+			MX6UL_PAD_ENET1_TX_DATA1__ENET1_TDATA01 0x1b0b0
+			MX6UL_PAD_ENET1_TX_CLK__ENET1_REF_CLK1	0x4001b031
+		>;
+	};
+
+	pinctrl_uart1: uart1grp {
+		fsl,pins = <
+			MX6UL_PAD_UART1_TX_DATA__UART1_DCE_TX	0x1b0b1
+			MX6UL_PAD_UART1_RX_DATA__UART1_DCE_RX	0x1b0b1
+		>;
+	};
+
+	pinctrl_usdhc1: usdhc1grp {
+		fsl,pins = <
+			MX6UL_PAD_UART1_RTS_B__GPIO1_IO19	0x17059
+			MX6UL_PAD_SD1_CMD__USDHC1_CMD		0x17059
+			MX6UL_PAD_SD1_CLK__USDHC1_CLK		0x10071
+			MX6UL_PAD_SD1_DATA0__USDHC1_DATA0	0x17059
+			MX6UL_PAD_SD1_DATA1__USDHC1_DATA1	0x17059
+			MX6UL_PAD_SD1_DATA2__USDHC1_DATA2	0x17059
+			MX6UL_PAD_SD1_DATA3__USDHC1_DATA3	0x17059
+		>;
+	};
+
+	pinctrl_usb_otg1_vbus: usb_otg1_vbus {
+		fsl,pins = <
+			MX6UL_PAD_ENET2_RX_DATA0__GPIO2_IO08	0x79
+		>;
+	};
+};
+
+&fec1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_enet1>;
+	phy-mode = "rmii";
+	phy-handle = <&ethphy0>;
+	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ethphy0: ethernet-phy at 0 {
+			reg = <0>;
+		};
+	};
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1>;
+	status = "okay";
+};
+
+&usbotg1 {
+	vbus-supply = <&reg_usb_otg1_vbus>;
+	dr_mode = "host";
+	status = "okay";
+};
+
+&usdhc1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc1>;
+	cd-gpios = <&gpio1 19 GPIO_ACTIVE_LOW>;
+	no-1-8-v;
+	keep-power-in-suspend;
+	wakeup-source;
+	status = "okay";
+};
-- 
2.9.3

[PATCH 1/2] ARM: dts: imx6ul: Add DTS for liteSOM module

[Fabio Estevam]

On Fri, Sep 9, 2016 at 7:39 AM, Marcin Niestroj
<m.niestroj@grinn-global.com> wrote:

> --- /dev/null
> +++ b/arch/arm/boot/dts/imx6ul-litesom.dtsi
> @@ -0,0 +1,52 @@
> +/*
> + * Copyright (C) 2016 Grinn
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */

Is it possible to use a dual GPLv2/X11 license?

Patches look good.

[PATCH 1/2] ARM: dts: imx6ul: Add DTS for liteSOM module

[Marcin Niestroj]

On 09.09.2016 19:44, Fabio Estevam wrote:
> On Fri, Sep 9, 2016 at 7:39 AM, Marcin Niestroj
> <m.niestroj@grinn-global.com> wrote:
>
>> --- /dev/null
>> +++ b/arch/arm/boot/dts/imx6ul-litesom.dtsi
>> @@ -0,0 +1,52 @@
>> +/*
>> + * Copyright (C) 2016 Grinn
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> + */
>
> Is it possible to use a dual GPLv2/X11 license?

It is possible. But why should we do that?

>
> Patches look good.
>

-- 
Marcin Niestroj

[PATCH 1/2] ARM: dts: imx6ul: Add DTS for liteSOM module

[Fabio Estevam]

On Mon, Sep 12, 2016 at 5:34 AM, Marcin Niestroj
<m.niestroj@grinn-global.com> wrote:

>> Is it possible to use a dual GPLv2/X11 license?
>
> It is possible. But why should we do that?

So that non-Linux users could reuse the dts. There are many dual
licence examples in arch/arm/boot/dts.

[PATCH 1/2] ARM: dts: imx6ul: Add DTS for liteSOM module

[Marcin Niestroj]

On 12.09.2016 12:36, Fabio Estevam wrote:
> On Mon, Sep 12, 2016 at 5:34 AM, Marcin Niestroj
> <m.niestroj@grinn-global.com> wrote:
>
>>> Is it possible to use a dual GPLv2/X11 license?
>>
>> It is possible. But why should we do that?
>
> So that non-Linux users could reuse the dts. There are many dual
> licence examples in arch/arm/boot/dts.

We are including imx6ul.dtsi which is GPLv2 only. Do you plan to
relicense it?

What do you mean by non-Linux users? What other projects are using dts?


-- 
Marcin Niestroj

[PATCH 1/2] ARM: dts: imx6ul: Add DTS for liteSOM module

[Fabio Estevam]

On Mon, Sep 12, 2016 at 8:16 AM, Marcin Niestroj
<m.niestroj@grinn-global.com> wrote:

> We are including imx6ul.dtsi which is GPLv2 only. Do you plan to
> relicense it?

Yes, I think it is a good idea.

> What do you mean by non-Linux users? What other projects are using dts?

FreeBSD, U-Boot, Barebox.