From: Nelson Pereira <[email protected]> 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. Signed-off-by: Nelson Pereira <[email protected]> Cc: Vineet Gupta <[email protected]> Signed-off-by: Alexey Brodkin <[email protected]> --- 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 -- 2.4.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
