diff options
Diffstat (limited to 'dts/Bindings/dma')
| -rw-r--r-- | dts/Bindings/dma/brcm,bcm2835-dma.txt | 4 | ||||
| -rw-r--r-- | dts/Bindings/dma/mtk-hsdma.txt | 33 | ||||
| -rw-r--r-- | dts/Bindings/dma/qcom_bam_dma.txt | 4 | ||||
| -rw-r--r-- | dts/Bindings/dma/renesas,rcar-dmac.txt | 2 | ||||
| -rw-r--r-- | dts/Bindings/dma/renesas,usb-dmac.txt | 1 | ||||
| -rw-r--r-- | dts/Bindings/dma/snps,dw-axi-dmac.txt | 41 | ||||
| -rw-r--r-- | dts/Bindings/dma/stm32-dma.txt | 6 |
7 files changed, 86 insertions, 5 deletions
diff --git a/dts/Bindings/dma/brcm,bcm2835-dma.txt b/dts/Bindings/dma/brcm,bcm2835-dma.txt index baf9b34d20..b6a8cc0978 100644 --- a/dts/Bindings/dma/brcm,bcm2835-dma.txt +++ b/dts/Bindings/dma/brcm,bcm2835-dma.txt @@ -74,8 +74,8 @@ Example: bcm2835_i2s: i2s@7e203000 { compatible = "brcm,bcm2835-i2s"; - reg = < 0x7e203000 0x20>, - < 0x7e101098 0x02>; + reg = < 0x7e203000 0x24>; + clocks = <&clocks BCM2835_CLOCK_PCM>; dmas = <&dma 2>, <&dma 3>; diff --git a/dts/Bindings/dma/mtk-hsdma.txt b/dts/Bindings/dma/mtk-hsdma.txt new file mode 100644 index 0000000000..4bb317359d --- /dev/null +++ b/dts/Bindings/dma/mtk-hsdma.txt @@ -0,0 +1,33 @@ +MediaTek High-Speed DMA Controller +================================== + +This device follows the generic DMA bindings defined in dma/dma.txt. + +Required properties: + +- compatible: Must be one of + "mediatek,mt7622-hsdma": for MT7622 SoC + "mediatek,mt7623-hsdma": for MT7623 SoC +- reg: Should contain the register's base address and length. +- interrupts: Should contain a reference to the interrupt used by this + device. +- clocks: Should be the clock specifiers corresponding to the entry in + clock-names property. +- clock-names: Should contain "hsdma" entries. +- power-domains: Phandle to the power domain that the device is part of +- #dma-cells: The length of the DMA specifier, must be <1>. This one cell + in dmas property of a client device represents the channel + number. +Example: + + hsdma: dma-controller@1b007000 { + compatible = "mediatek,mt7623-hsdma"; + reg = <0 0x1b007000 0 0x1000>; + interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_LOW>; + clocks = <ðsys CLK_ETHSYS_HSDMA>; + clock-names = "hsdma"; + power-domains = <&scpsys MT2701_POWER_DOMAIN_ETH>; + #dma-cells = <1>; + }; + +DMA clients must use the format described in dma/dma.txt file. diff --git a/dts/Bindings/dma/qcom_bam_dma.txt b/dts/Bindings/dma/qcom_bam_dma.txt index 9cbf5d9df8..cf5b9e4443 100644 --- a/dts/Bindings/dma/qcom_bam_dma.txt +++ b/dts/Bindings/dma/qcom_bam_dma.txt @@ -15,6 +15,10 @@ Required properties: the secure world. - qcom,controlled-remotely : optional, indicates that the bam is controlled by remote proccessor i.e. execution environment. +- num-channels : optional, indicates supported number of DMA channels in a + remotely controlled bam. +- qcom,num-ees : optional, indicates supported number of Execution Environments + in a remotely controlled bam. Example: diff --git a/dts/Bindings/dma/renesas,rcar-dmac.txt b/dts/Bindings/dma/renesas,rcar-dmac.txt index 891db41e94..aadfb236d5 100644 --- a/dts/Bindings/dma/renesas,rcar-dmac.txt +++ b/dts/Bindings/dma/renesas,rcar-dmac.txt @@ -18,6 +18,7 @@ Required Properties: Examples with soctypes are: - "renesas,dmac-r8a7743" (RZ/G1M) - "renesas,dmac-r8a7745" (RZ/G1E) + - "renesas,dmac-r8a77470" (RZ/G1C) - "renesas,dmac-r8a7790" (R-Car H2) - "renesas,dmac-r8a7791" (R-Car M2-W) - "renesas,dmac-r8a7792" (R-Car V2H) @@ -26,6 +27,7 @@ Required Properties: - "renesas,dmac-r8a7795" (R-Car H3) - "renesas,dmac-r8a7796" (R-Car M3-W) - "renesas,dmac-r8a77970" (R-Car V3M) + - "renesas,dmac-r8a77980" (R-Car V3H) - reg: base address and length of the registers block for the DMAC diff --git a/dts/Bindings/dma/renesas,usb-dmac.txt b/dts/Bindings/dma/renesas,usb-dmac.txt index f3d1f151ba..9dc935e24e 100644 --- a/dts/Bindings/dma/renesas,usb-dmac.txt +++ b/dts/Bindings/dma/renesas,usb-dmac.txt @@ -11,6 +11,7 @@ Required Properties: - "renesas,r8a7794-usb-dmac" (R-Car E2) - "renesas,r8a7795-usb-dmac" (R-Car H3) - "renesas,r8a7796-usb-dmac" (R-Car M3-W) + - "renesas,r8a77965-usb-dmac" (R-Car M3-N) - reg: base address and length of the registers block for the DMAC - interrupts: interrupt specifiers for the DMAC, one for each entry in interrupt-names. diff --git a/dts/Bindings/dma/snps,dw-axi-dmac.txt b/dts/Bindings/dma/snps,dw-axi-dmac.txt new file mode 100644 index 0000000000..f237b79282 --- /dev/null +++ b/dts/Bindings/dma/snps,dw-axi-dmac.txt @@ -0,0 +1,41 @@ +Synopsys DesignWare AXI DMA Controller + +Required properties: +- compatible: "snps,axi-dma-1.01a" +- reg: Address range of the DMAC registers. This should include + all of the per-channel registers. +- interrupt: Should contain the DMAC interrupt number. +- interrupt-parent: Should be the phandle for the interrupt controller + that services interrupts for this device. +- dma-channels: Number of channels supported by hardware. +- snps,dma-masters: Number of AXI masters supported by the hardware. +- snps,data-width: Maximum AXI data width supported by hardware. + (0 - 8bits, 1 - 16bits, 2 - 32bits, ..., 6 - 512bits) +- snps,priority: Priority of channel. Array size is equal to the number of + dma-channels. Priority value must be programmed within [0:dma-channels-1] + range. (0 - minimum priority) +- snps,block-size: Maximum block size supported by the controller channel. + Array size is equal to the number of dma-channels. + +Optional properties: +- snps,axi-max-burst-len: Restrict master AXI burst length by value specified + in this property. If this property is missing the maximum AXI burst length + supported by DMAC is used. [1:256] + +Example: + +dmac: dma-controller@80000 { + compatible = "snps,axi-dma-1.01a"; + reg = <0x80000 0x400>; + clocks = <&core_clk>, <&cfgr_clk>; + clock-names = "core-clk", "cfgr-clk"; + interrupt-parent = <&intc>; + interrupts = <27>; + + dma-channels = <4>; + snps,dma-masters = <2>; + snps,data-width = <3>; + snps,block-size = <4096 4096 4096 4096>; + snps,priority = <0 1 2 3>; + snps,axi-max-burst-len = <16>; +}; diff --git a/dts/Bindings/dma/stm32-dma.txt b/dts/Bindings/dma/stm32-dma.txt index 0b55718bf8..c5f5190972 100644 --- a/dts/Bindings/dma/stm32-dma.txt +++ b/dts/Bindings/dma/stm32-dma.txt @@ -62,14 +62,14 @@ channel: a phandle to the DMA controller plus the following four integer cells: 0x1: medium 0x2: high 0x3: very high -4. A 32bit mask specifying the DMA FIFO threshold configuration which are device - dependent: - -bit 0-1: Fifo threshold +4. A 32bit bitfield value specifying DMA features which are device dependent: + -bit 0-1: DMA FIFO threshold selection 0x0: 1/4 full FIFO 0x1: 1/2 full FIFO 0x2: 3/4 full FIFO 0x3: full FIFO + Example: usart1: serial@40011000 { |