[PATCH 03/14] arch: arm: dts: k3-j7200-som: Enable I2C

[Nishanth Menon]

On 09:43-20230503, Udit Kumar wrote:
> Upstream linux patch posted at
> https://lore.kernel.org/all/20230419040007.3022780-3-u-kumar1@ti.com/
> 
a) link here does'nt belong to commit message.
b) Let this be accepted into k.org master prior to u-boot sync.
> 
> This patch enables wkup_i2c0 node in board dts file
> along with pin mux and speed.
> Also enables underneath eeprom CAV24C256WE.
> 
> J7200 Datasheet (Table 6-106, Section 6.4 Pin Multiplexing) :
> https://www.ti.com/lit/ds/symlink/dra821u.pdf
> 
> J7200 User Guide (Section 4.3, Table 4-2) :
> https://www.ti.com/lit/ug/spruiw7a/spruiw7a.pdf
> 
> Signed-off-by: Udit Kumar <u-kumar1 at ti.com>
> ---
>  .../arm/dts/k3-j7200-r5-common-proc-board.dts |  7 -------
>  arch/arm/dts/k3-j7200-som-p0.dtsi             | 21 +++++++++++++++++++
>  2 files changed, 21 insertions(+), 7 deletions(-)
> 
> diff --git a/arch/arm/dts/k3-j7200-r5-common-proc-board.dts b/arch/arm/dts/k3-j7200-r5-common-proc-board.dts
> index e62f9218e8..9d9ffcbb89 100644
> --- a/arch/arm/dts/k3-j7200-r5-common-proc-board.dts
> +++ b/arch/arm/dts/k3-j7200-r5-common-proc-board.dts
> @@ -126,13 +126,6 @@
>  		>;
>  	};
>  
> -	wkup_i2c0_pins_default: wkup-i2c0-pins-default {
> -		pinctrl-single,pins = <
> -			J721E_WKUP_IOPAD(0x100, PIN_INPUT_PULLUP, 0) /* (F20) WKUP_I2C0_SCL */
> -			J721E_WKUP_IOPAD(0x104, PIN_INPUT_PULLUP, 0) /* (H21) WKUP_I2C0_SDA */
> -		>;
> -	};
> -
>  	mcu_fss0_hpb0_pins_default: mcu-fss0-hpb0-pins-default {
>  		pinctrl-single,pins = <
>  			J721E_WKUP_IOPAD(0x0, PIN_OUTPUT, 1) /* (E20) MCU_OSPI0_CLK.MCU_HYPERBUS0_CK */
> diff --git a/arch/arm/dts/k3-j7200-som-p0.dtsi b/arch/arm/dts/k3-j7200-som-p0.dtsi
> index fa44ed4c17..2694241547 100644
> --- a/arch/arm/dts/k3-j7200-som-p0.dtsi
> +++ b/arch/arm/dts/k3-j7200-som-p0.dtsi
> @@ -118,6 +118,15 @@
>  	};
>  };
>  
> +&wkup_pmx2 {
> +	wkup_i2c0_pins_default: wkup-i2c0-pins-default {
> +			pinctrl-single,pins = <
> +			J721E_WKUP_IOPAD(0x98, PIN_INPUT_PULLUP, 0) /* (F20) WKUP_I2C0_SCL */
> +			J721E_WKUP_IOPAD(0x9c, PIN_INPUT_PULLUP, 0) /* (H21) WKUP_I2C0_SDA */
> +		>;
> +	};
> +};
> +
>  &main_pmx0 {
>  	main_i2c0_pins_default: main-i2c0-pins-default {
>  		pinctrl-single,pins = <
> @@ -214,6 +223,18 @@
>  	};
>  };
>  
> +&wkup_i2c0 {
> +	status = "okay";
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&wkup_i2c0_pins_default>;
> +	clock-frequency = <400000>;
> +
> +	eeprom at 50 {
> +		compatible = "atmel,24c256";
> +		reg = <0x50>;
> +	};
> +};
> +
>  &ospi0 {
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&mcu_fss0_ospi0_pins_default>;
> -- 
> 2.34.1
> 

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D