On Saturday 05 December 2015 12:52 AM, Alexey Brodkin wrote:
> From: Nelson Pereira <npere...@synopsys.com>
>
> ARC SDP baseboard among other peripherals sports
> DesignWare DMA controller.
>
> This enables support of that device.
> Note typically DW DMA controller is used with external devices
> connected to ARC SDP board via HAPS Extension bus.
Such a board config needs to have it's own defconfig / DT (if needed). There's
no
point in enabling this for rest of the world who don't have a use case for this
IP.
So nack !
-Vineet
>
> Signed-off-by: Nelson Pereira <npere...@synopsys.com>
> Cc: Vineet Gupta <vgu...@synopsys.com>
> Signed-off-by: Alexey Brodkin <abrod...@synopsys.com>
> ---
> arch/arc/boot/dts/axs10x_mb.dtsi | 16 ++++++++++++++++
> arch/arc/configs/axs101_defconfig | 5 +++++
> arch/arc/configs/axs103_defconfig | 5 +++++
> arch/arc/configs/axs103_smp_defconfig | 5 +++++
> 4 files changed, 31 insertions(+)
>
> diff --git a/arch/arc/boot/dts/axs10x_mb.dtsi
> b/arch/arc/boot/dts/axs10x_mb.dtsi
> index f3db321..1e57580 100644
> --- a/arch/arc/boot/dts/axs10x_mb.dtsi
> +++ b/arch/arc/boot/dts/axs10x_mb.dtsi
> @@ -220,5 +220,21 @@
> reg = <2>;
> };
> };
> +
> + dmac: dmac@0x80000 {
> + compatible = "snps,dma-spear1340";
> + reg = <0x80000 0x1000>;
> + interrupts = <9>;
> + dma-channels = <4>;
> + dma-requests = <16>;
> + dma-masters = <2>;
> + #dma-cells = <3>;
> + chan_allocation_order = <1>;
> + chan_priority = <1>;
> + block_size = <0xfff>;
> + data_width = <3 3>;
> + clocks = <&apbclk>;
> + clock-names = "hclk";
> + };
> };
> };
> diff --git a/arch/arc/configs/axs101_defconfig
> b/arch/arc/configs/axs101_defconfig
> index 562dac6..405474f 100644
> --- a/arch/arc/configs/axs101_defconfig
> +++ b/arch/arc/configs/axs101_defconfig
> @@ -90,6 +90,11 @@ CONFIG_MMC_SDHCI=y
> CONFIG_MMC_SDHCI_PLTFM=y
> CONFIG_MMC_DW=y
> CONFIG_MMC_DW_IDMAC=y
> +CONFIG_DMADEVICES=y
> +CONFIG_DW_DMAC_CORE=y
> +CONFIG_DW_DMAC=y
> +CONFIG_DMA_ENGINE=y
> +CONFIG_DMA_OF=y
> # CONFIG_IOMMU_SUPPORT is not set
> CONFIG_EXT3_FS=y
> CONFIG_EXT4_FS=y
> diff --git a/arch/arc/configs/axs103_defconfig
> b/arch/arc/configs/axs103_defconfig
> index 83a6d8d..570f06f 100644
> --- a/arch/arc/configs/axs103_defconfig
> +++ b/arch/arc/configs/axs103_defconfig
> @@ -96,6 +96,11 @@ CONFIG_MMC_SDHCI=y
> CONFIG_MMC_SDHCI_PLTFM=y
> CONFIG_MMC_DW=y
> CONFIG_MMC_DW_IDMAC=y
> +CONFIG_DMADEVICES=y
> +CONFIG_DW_DMAC_CORE=y
> +CONFIG_DW_DMAC=y
> +CONFIG_DMA_ENGINE=y
> +CONFIG_DMA_OF=y
> # CONFIG_IOMMU_SUPPORT is not set
> CONFIG_EXT3_FS=y
> CONFIG_EXT4_FS=y
> diff --git a/arch/arc/configs/axs103_smp_defconfig
> b/arch/arc/configs/axs103_smp_defconfig
> index f1e1c84..16cfce8 100644
> --- a/arch/arc/configs/axs103_smp_defconfig
> +++ b/arch/arc/configs/axs103_smp_defconfig
> @@ -97,6 +97,11 @@ CONFIG_MMC_SDHCI=y
> CONFIG_MMC_SDHCI_PLTFM=y
> CONFIG_MMC_DW=y
> CONFIG_MMC_DW_IDMAC=y
> +CONFIG_DMADEVICES=y
> +CONFIG_DW_DMAC_CORE=y
> +CONFIG_DW_DMAC=y
> +CONFIG_DMA_ENGINE=y
> +CONFIG_DMA_OF=y
> # CONFIG_IOMMU_SUPPORT is not set
> CONFIG_EXT3_FS=y
> CONFIG_EXT4_FS=y
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