On 04/21/2017 08:23 PM, Stefan Agner wrote:
> Add i.MX 7 GPMI NAND module.
>
> Signed-off-by: Stefan Agner <[email protected]>
> ---
> 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";
> + };
> };
> };
