linux-kernel - Re: [PATCH v7 3/8] arm64: dts: ti: k3-j721s2-mcu-wakeup: Add support of OSPI

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Message-ID: <a925a78d-cc36-241b-948e-b506560a9a55@ti.com>
Date:   Tue, 29 Nov 2022 11:34:28 -0600
From:   Andrew Davis <afd@...com>
To:     Matt Ranostay <mranostay@...com>, <nm@...com>, <vigneshr@...com>,
        <kristo@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <s-vadapalli@...com>,
        <r-gunasekaran@...com>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v7 3/8] arm64: dts: ti: k3-j721s2-mcu-wakeup: Add support
 of OSPI

On 11/22/22 4:16 AM, Matt Ranostay wrote:
> From: Aswath Govindraju <a-govindraju@...com>
> 
> Add support for two instance of OSPI in J721S2 SoC.
> 
> Signed-off-by: Aswath Govindraju <a-govindraju@...com>
> Signed-off-by: Matt Ranostay <mranostay@...com>
> ---
>   .../boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi     | 40 +++++++++++++++++++
>   1 file changed, 40 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
> index 0af242aa9816..a588ab8d867b 100644
> --- a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
> @@ -306,4 +306,44 @@ cpts@...00 {
>   			ti,cpts-periodic-outputs = <2>;
>   		};
>   	};
> +
> +	fss: syscon@...00000 {
> +		compatible = "simple-bus";
> +		reg = <0x00 0x47000000 0x00 0x100>;

You do not need "reg" property here, "ranges" below takes care of the translations.

Andrew

> +		#address-cells = <2>;
> +		#size-cells = <2>;
> +		ranges;
> +
> +		ospi0: spi@...40000 {
> +			compatible = "ti,am654-ospi", "cdns,qspi-nor";
> +			reg = <0x00 0x47040000 0x00 0x100>,
> +			      <0x5 0x0000000 0x1 0x0000000>;
> +			interrupts = <GIC_SPI 840 IRQ_TYPE_LEVEL_HIGH>;
> +			cdns,fifo-depth = <256>;
> +			cdns,fifo-width = <4>;
> +			cdns,trigger-address = <0x0>;
> +			clocks = <&k3_clks 109 5>;
> +			assigned-clocks = <&k3_clks 109 5>;
> +			assigned-clock-parents = <&k3_clks 109 7>;
> +			assigned-clock-rates = <166666666>;
> +			power-domains = <&k3_pds 109 TI_SCI_PD_EXCLUSIVE>;
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +		};
> +
> +		ospi1: spi@...50000 {
> +			compatible = "ti,am654-ospi", "cdns,qspi-nor";
> +			reg = <0x00 0x47050000 0x00 0x100>,
> +			      <0x7 0x0000000 0x1 0x0000000>;
> +			interrupts = <GIC_SPI 841 IRQ_TYPE_LEVEL_HIGH>;
> +			cdns,fifo-depth = <256>;
> +			cdns,fifo-width = <4>;
> +			cdns,trigger-address = <0x0>;
> +			clocks = <&k3_clks 110 5>;
> +			power-domains = <&k3_pds 110 TI_SCI_PD_EXCLUSIVE>;
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +		};
> +
> +	};
>   };