linux-kernel - Re: [PATCH 1/3] arm64: dts: ti: Add GPMC NAND support

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Message-ID: <0994c10b-8805-7ce3-dc1b-13410b3a959c@ti.com>
Date:   Fri, 15 Sep 2023 14:16:06 +0300
From:   Roger Quadros <rogerq@...com>
To:     Nitin Yadav <n-yadav@...com>, <nm@...com>, <vigneshr@...com>
CC:     <kristo@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <catalin.marinas@....com>, <will@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/3] arm64: dts: ti: Add GPMC NAND support

Hi Nitin,

On 13.9.2023 14.47, Nitin Yadav wrote:
> Add support for AM62Q NAND card: X8 NAND EXPANSION
> BOARD card (PROC143E1) for AM62x LP SK board.

This patch is not adding NAND support but GPMC and ELM nodes.

> 
> Signed-off-by: Nitin Yadav <n-yadav@...com>
> ---
>   arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 29 ++++++++++++++++++++++++
>   arch/arm64/boot/dts/ti/k3-am62.dtsi      |  2 ++
>   2 files changed, 31 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
> index 284b90c94da8..e93e79d8083f 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
> @@ -955,4 +955,33 @@ mcasp2: audio-controller@...0000 {
>   		power-domains = <&k3_pds 192 TI_SCI_PD_EXCLUSIVE>;
>   		status = "disabled";
>   	};
> +	gpmc0: memory-controller@...00000 {
> +		status = "disabled";
> +		compatible = "ti,am64-gpmc";
> +		power-domains = <&k3_pds 80 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 80 0>;
> +		clock-names = "fck";
> +		reg = <0x00 0x03b000000 0x00 0x400>,
> +		      <0x00 0x050000000 0x00 0x8000000>;
> +		reg-names = "cfg", "data";
> +		interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
> +		gpmc,num-cs = <3>;
> +		gpmc,num-waitpins = <2>;
> +		#address-cells = <2>;
> +		#size-cells = <1>;
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +		gpio-controller;
> +		#gpio-cells = <2>;
> +	};
> +
> +	elm0: ecc@...10000 {
> +		status = "disabled";
> +		compatible = "ti,am3352-elm";
> +		reg = <0x00 0x25010000 0x00 0x2000>;
> +		interrupts = <GIC_SPI 132 IRQ_TYPE_LEVEL_HIGH>;
> +		power-domains = <&k3_pds 54 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 54 0>;
> +		clock-names = "fck";
> +	};
>   };
> diff --git a/arch/arm64/boot/dts/ti/k3-am62.dtsi b/arch/arm64/boot/dts/ti/k3-am62.dtsi
> index 11f14eef2d44..f7d8aad0a016 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62.dtsi
> @@ -76,6 +76,8 @@ cbass_main: bus@...00 {
>   			 <0x00 0x70000000 0x00 0x70000000 0x00 0x00010000>, /* OCSRAM */
>   			 <0x01 0x00000000 0x01 0x00000000 0x00 0x00310000>, /* A53 PERIPHBASE */
>   			 <0x05 0x00000000 0x05 0x00000000 0x01 0x00000000>, /* FSS0 DAT3 */
> +			 <0x00 0x3b000000 0x00 0x3b000000 0x00 0x00000400>, /* GPMC0_CFG */
> +			 <0x00 0x50000000 0x00 0x50000000 0x00 0x08000000>, /* GPMC0 DATA */
>   
>   			 /* MCU Domain Range */
>   			 <0x00 0x04000000 0x00 0x04000000 0x00 0x01ff1400>,

-- 
cheers,
-roger