Loading Documentation/devicetree/bindings/dma/owl-dma.txt 0 → 100644 +47 −0 Original line number Diff line number Diff line * Actions Semi Owl SoCs DMA controller This binding follows the generic DMA bindings defined in dma.txt. Required properties: - compatible: Should be "actions,s900-dma". - reg: Should contain DMA registers location and length. - interrupts: Should contain 4 interrupts shared by all channel. - #dma-cells: Must be <1>. Used to represent the number of integer cells in the dmas property of client device. - dma-channels: Physical channels supported. - dma-requests: Number of DMA request signals supported by the controller. Refer to Documentation/devicetree/bindings/dma/dma.txt - clocks: Phandle and Specifier of the clock feeding the DMA controller. Example: Controller: dma: dma-controller@e0260000 { compatible = "actions,s900-dma"; reg = <0x0 0xe0260000 0x0 0x1000>; interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>; #dma-cells = <1>; dma-channels = <12>; dma-requests = <46>; clocks = <&clock CLK_DMAC>; }; Client: DMA clients connected to the Actions Semi Owl SoCs DMA controller must use the format described in the dma.txt file, using a two-cell specifier for each channel. The two cells in order are: 1. A phandle pointing to the DMA controller. 2. The channel id. uart5: serial@e012a000 { ... dma-names = "tx", "rx"; dmas = <&dma 26>, <&dma 27>; ... }; drivers/dma/Kconfig +8 −0 Original line number Diff line number Diff line Loading @@ -413,6 +413,14 @@ config NBPFAXI_DMA help Support for "Type-AXI" NBPF DMA IPs from Renesas config OWL_DMA tristate "Actions Semi Owl SoCs DMA support" depends on ARCH_ACTIONS select DMA_ENGINE select DMA_VIRTUAL_CHANNELS help Enable support for the Actions Semi Owl SoCs DMA controller. config PCH_DMA tristate "Intel EG20T PCH / LAPIS Semicon IOH(ML7213/ML7223/ML7831) DMA" depends on PCI && (X86_32 || COMPILE_TEST) Loading drivers/dma/Makefile +1 −0 Original line number Diff line number Diff line Loading @@ -52,6 +52,7 @@ obj-$(CONFIG_MV_XOR_V2) += mv_xor_v2.o obj-$(CONFIG_MXS_DMA) += mxs-dma.o obj-$(CONFIG_MX3_IPU) += ipu/ obj-$(CONFIG_NBPFAXI_DMA) += nbpfaxi.o obj-$(CONFIG_OWL_DMA) += owl-dma.o obj-$(CONFIG_PCH_DMA) += pch_dma.o obj-$(CONFIG_PL330_DMA) += pl330.o obj-$(CONFIG_PPC_BESTCOMM) += bestcomm/ Loading Loading
Documentation/devicetree/bindings/dma/owl-dma.txt 0 → 100644 +47 −0 Original line number Diff line number Diff line * Actions Semi Owl SoCs DMA controller This binding follows the generic DMA bindings defined in dma.txt. Required properties: - compatible: Should be "actions,s900-dma". - reg: Should contain DMA registers location and length. - interrupts: Should contain 4 interrupts shared by all channel. - #dma-cells: Must be <1>. Used to represent the number of integer cells in the dmas property of client device. - dma-channels: Physical channels supported. - dma-requests: Number of DMA request signals supported by the controller. Refer to Documentation/devicetree/bindings/dma/dma.txt - clocks: Phandle and Specifier of the clock feeding the DMA controller. Example: Controller: dma: dma-controller@e0260000 { compatible = "actions,s900-dma"; reg = <0x0 0xe0260000 0x0 0x1000>; interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>; #dma-cells = <1>; dma-channels = <12>; dma-requests = <46>; clocks = <&clock CLK_DMAC>; }; Client: DMA clients connected to the Actions Semi Owl SoCs DMA controller must use the format described in the dma.txt file, using a two-cell specifier for each channel. The two cells in order are: 1. A phandle pointing to the DMA controller. 2. The channel id. uart5: serial@e012a000 { ... dma-names = "tx", "rx"; dmas = <&dma 26>, <&dma 27>; ... };
drivers/dma/Kconfig +8 −0 Original line number Diff line number Diff line Loading @@ -413,6 +413,14 @@ config NBPFAXI_DMA help Support for "Type-AXI" NBPF DMA IPs from Renesas config OWL_DMA tristate "Actions Semi Owl SoCs DMA support" depends on ARCH_ACTIONS select DMA_ENGINE select DMA_VIRTUAL_CHANNELS help Enable support for the Actions Semi Owl SoCs DMA controller. config PCH_DMA tristate "Intel EG20T PCH / LAPIS Semicon IOH(ML7213/ML7223/ML7831) DMA" depends on PCI && (X86_32 || COMPILE_TEST) Loading
drivers/dma/Makefile +1 −0 Original line number Diff line number Diff line Loading @@ -52,6 +52,7 @@ obj-$(CONFIG_MV_XOR_V2) += mv_xor_v2.o obj-$(CONFIG_MXS_DMA) += mxs-dma.o obj-$(CONFIG_MX3_IPU) += ipu/ obj-$(CONFIG_NBPFAXI_DMA) += nbpfaxi.o obj-$(CONFIG_OWL_DMA) += owl-dma.o obj-$(CONFIG_PCH_DMA) += pch_dma.o obj-$(CONFIG_PL330_DMA) += pl330.o obj-$(CONFIG_PPC_BESTCOMM) += bestcomm/ Loading