Re: [PATCH v2 4/4] arm64: dts: ti: k3-am654-base-board: Add I2C nodes

From: Nishanth Menon
Date: Sat Nov 17 2018 - 11:10:18 EST

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On 11:31-20181113, Vignesh R wrote:
> Add DT entries for I2C instances present in AM654 SoC.
>

I2C does'nt really belong to a series introducing pinmux ;)... but yeah,
I get the dependency of pinmux.

> Signed-off-by: Vignesh R <vigneshr@xxxxxx>
> ---
> arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 44 ++++++++++++
> arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi | 11 +++
> arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi | 11 +++
> arch/arm64/boot/dts/ti/k3-am65.dtsi | 6 ++
> .../arm64/boot/dts/ti/k3-am654-base-board.dts | 70 +++++++++++++++++++
> 5 files changed, 142 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> index f7c2a60d5c80..916434839603 100644
> --- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> @@ -85,4 +85,48 @@
> pinctrl-single,register-width = <32>;
> pinctrl-single,function-mask = <0xffffffff>;
> };
> +
> + main_i2c0: i2c@2000000 {
> + compatible = "ti,am654-i2c", "ti,omap4-i2c";
> + reg = <0x0 0x2000000 0x0 0x100>;
> + interrupts = <GIC_SPI 200 IRQ_TYPE_LEVEL_HIGH>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + clock-names = "fck";
> + clocks = <&k3_clks 110 1>;
> + power-domains = <&k3_pds 110>;
> + };
> +
> + main_i2c1: i2c@2010000 {
> + compatible = "ti,am654-i2c", "ti,omap4-i2c";
> + reg = <0x0 0x2010000 0x0 0x100>;
> + interrupts = <GIC_SPI 201 IRQ_TYPE_LEVEL_HIGH>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + clock-names = "fck";
> + clocks = <&k3_clks 111 1>;
> + power-domains = <&k3_pds 111>;
> + };
> +
> + main_i2c2: i2c@2020000 {
> + compatible = "ti,am654-i2c", "ti,omap4-i2c";
> + reg = <0x0 0x2020000 0x0 0x100>;
> + interrupts = <GIC_SPI 202 IRQ_TYPE_LEVEL_HIGH>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + clock-names = "fck";
> + clocks = <&k3_clks 112 1>;
> + power-domains = <&k3_pds 112>;
> + };
> +
> + main_i2c3: i2c@2030000 {
> + compatible = "ti,am654-i2c", "ti,omap4-i2c";
> + reg = <0x0 0x2030000 0x0 0x100>;
> + interrupts = <GIC_SPI 203 IRQ_TYPE_LEVEL_HIGH>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + clock-names = "fck";
> + clocks = <&k3_clks 113 1>;
> + power-domains = <&k3_pds 113>;
> + };
> };
> diff --git a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
> index 8c611d16df44..1fd027748e1f 100644
> --- a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
> @@ -15,4 +15,15 @@
> clock-frequency = <96000000>;
> current-speed = <115200>;
> };
> +
> + mcu_i2c0: i2c@40b00000 {
> + compatible = "ti,am654-i2c", "ti,omap4-i2c";
> + reg = <0x0 0x40b00000 0x0 0x100>;
> + interrupts = <GIC_SPI 564 IRQ_TYPE_LEVEL_HIGH>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + clock-names = "fck";
> + clocks = <&k3_clks 114 1>;
> + power-domains = <&k3_pds 114>;
> + };
> };
> diff --git a/arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi
> index 19b46f40789b..9e8467ce7ad8 100644
> --- a/arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi
> @@ -51,4 +51,15 @@
> clock-frequency = <48000000>;
> current-speed = <115200>;
> };
> +
> + wkup_i2c0: i2c@42120000 {
> + compatible = "ti,am654-i2c", "ti,omap4-i2c";
> + reg = <0x42120000 0x100>;
> + interrupts = <GIC_SPI 696 IRQ_TYPE_LEVEL_HIGH>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + clock-names = "fck";
> + clocks = <&k3_clks 115 1>;
> + power-domains = <&k3_pds 115>;
> + };
> };
> diff --git a/arch/arm64/boot/dts/ti/k3-am65.dtsi b/arch/arm64/boot/dts/ti/k3-am65.dtsi
> index 6fdfc7815811..50f4be2047a9 100644
> --- a/arch/arm64/boot/dts/ti/k3-am65.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am65.dtsi
> @@ -23,6 +23,12 @@
> serial2 = &main_uart0;
> serial3 = &main_uart1;
> serial4 = &main_uart2;
> + i2c0 = &wkup_i2c0;
> + i2c1 = &mcu_i2c0;
> + i2c2 = &main_i2c0;
> + i2c3 = &main_i2c1;
> + i2c4 = &main_i2c2;
> + i2c5 = &main_i2c3;
> };
>
> chosen { };
> diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
> index cbf9d3dfeaa3..bd5a0069191d 100644
> --- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
> @@ -35,6 +35,15 @@
> };
> };
>
> +&wkup_pmx0 {
> + wkup_i2c0_pins_default: wkup-i2c0-pins-default {
> + pinctrl-single,pins = <
> + AM65X_WKUP_IOPAD(0x00e0, PIN_INPUT, 0) /* (AC7) WKUP_I2C0_SCL */
> + AM65X_WKUP_IOPAD(0x00e4, PIN_INPUT, 0) /* (AD6) WKUP_I2C0_SDA */
> + >;
> + };
> +};
> +
> &main_pmx0 {
> main_uart0_pins_default: main-uart0-pins-default {
> pinctrl-single,pins = <
> @@ -44,6 +53,29 @@
> AM65X_IOPAD(0x01f0, PIN_OUTPUT, 0) /* (AD11) UART0_RTSn */
> >;
> };
> +
> + main_i2c2_pins_default: main-i2c2-pins-default {
> + pinctrl-single,pins = <
> + AM65X_IOPAD(0x0074, PIN_INPUT, 5) /* (T27) GPMC0_CSn3.I2C2_SCL */
> + AM65X_IOPAD(0x0070, PIN_INPUT, 5) /* (R25) GPMC0_CSn2.I2C2_SDA */
> + >;
> + };
> +};
> +
> +&main_pmx1 {
> + main_i2c0_pins_default: main-i2c0-pins-default {
> + pinctrl-single,pins = <
> + AM65X_IOPAD(0x0000, PIN_INPUT, 0) /* (D20) I2C0_SCL */
> + AM65X_IOPAD(0x0004, PIN_INPUT, 0) /* (C21) I2C0_SDA */
> + >;
> + };
> +
> + main_i2c1_pins_default: main-i2c1-pins-default {
> + pinctrl-single,pins = <
> + AM65X_IOPAD(0x0008, PIN_INPUT, 0) /* (B21) I2C1_SCL */
> + AM65X_IOPAD(0x000c, PIN_INPUT, 0) /* (E21) I2C1_SDA */
> + >;
> + };
> };
>
> &wkup_uart0 {
> @@ -55,3 +87,41 @@
> pinctrl-names = "default";
> pinctrl-0 = <&main_uart0_pins_default>;
> };
> +
> +&wkup_i2c0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&wkup_i2c0_pins_default>;
> + clock-frequency = <400000>;
> +
> + pca9554: gpio@39 {
> + compatible = "nxp,pca9554";
> + reg = <0x39>;
> + gpio-controller;
> + #gpio-cells = <2>;

Do make sure that defconfig has the GPIO expander built as modules at
the very least.

> + };
> +};
> +
> +&main_i2c0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&main_i2c0_pins_default>;
> + clock-frequency = <400000>;
> +
> + pca9555: gpio@21 {
> + compatible = "nxp,pca9555";
> + reg = <0x21>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + };
> +};
> +
> +&main_i2c1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&main_i2c1_pins_default>;
> + clock-frequency = <400000>;
> +};
> +
> +&main_i2c2 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&main_i2c2_pins_default>;
> + clock-frequency = <400000>;
> +};
> --
> 2.19.1
>

Acked-by: Nishanth Menon <nm@xxxxxx>

--
Regards,
Nishanth Menon

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