Re: [PATCH v2 4/5] ARM: dts: imx7: add GPMI NAND

[Han Xu <han.xu@nxp.com>]

On 04/21/2017 08:23 PM, Stefan Agner wrote:
> Add i.MX 7 GPMI NAND module.
>
> Signed-off-by: Stefan Agner <stefan@agner.ch>
> ---
>   arch/arm/boot/dts/imx7s.dtsi | 31 +++++++++++++++++++++++++++++++
>   1 file changed, 31 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi
> index 843eb379e1ea..9645257638d4 100644
> --- a/arch/arm/boot/dts/imx7s.dtsi
> +++ b/arch/arm/boot/dts/imx7s.dtsi
> @@ -995,5 +995,36 @@
>   				status = "disabled";
>   			};
>   		};
> +
> +		dma_apbh: dma-apbh@33000000 {
> +			compatible = "fsl,imx7d-dma-apbh", "fsl,imx28-dma-apbh";
> +			reg = <0x33000000 0x2000>;
> +			interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
> +			interrupt-names = "gpmi0", "gpmi1", "gpmi2", "gpmi3";
> +			#dma-cells = <1>;
> +			dma-channels = <4>;
> +			clocks = <&clks IMX7D_NAND_USDHC_BUS_ROOT_CLK>,
> +				<&clks IMX7D_NAND_ROOT_CLK>;
> +			clock-names = "dma_apbh_bch", "dma_apbh_io";
> +		};
Do you need some patches to enable all clks for APBH DMA? Refer to 
https://patchwork.ozlabs.org/patch/551967/

> +
> +		gpmi: gpmi-nand@33002000{
> +			compatible = "fsl,imx7d-gpmi-nand";
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +			reg = <0x33002000 0x2000>, <0x33004000 0x4000>;
> +			reg-names = "gpmi-nand", "bch";
> +			interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
> +			interrupt-names = "bch";
> +			clocks = <&clks IMX7D_NAND_ROOT_CLK>,
> +				<&clks IMX7D_NAND_USDHC_BUS_ROOT_CLK>;
> +			clock-names = "gpmi_io", "gpmi_bch_apb";
> +			dmas = <&dma_apbh 0>;
> +			dma-names = "rx-tx";
> +			status = "disabled";
> +		};
>   	};
>   };