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author | Ingo Molnar <mingo@kernel.org> | 2015-05-11 17:05:09 +0300 |
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committer | Ingo Molnar <mingo@kernel.org> | 2015-05-11 17:05:09 +0300 |
commit | 191a66353b22fad8ac89404ab4c929cbe7b0afb2 (patch) | |
tree | bd7affc4bc640eb42e5ff3285922497285f8fdd7 /Documentation/devicetree/bindings/dma/apm-xgene-dma.txt | |
parent | f5d6a52f511157c7476590532a23b5664b1ed877 (diff) | |
parent | f21262b8e092a770e39fbd405cc18a0247c3af68 (diff) | |
download | linux-191a66353b22fad8ac89404ab4c929cbe7b0afb2.tar.xz |
Merge branch 'x86/asm' into x86/apic, to resolve a conflict
Conflicts:
arch/x86/kernel/apic/io_apic.c
arch/x86/kernel/apic/vector.c
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/dma/apm-xgene-dma.txt')
-rw-r--r-- | Documentation/devicetree/bindings/dma/apm-xgene-dma.txt | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/apm-xgene-dma.txt b/Documentation/devicetree/bindings/dma/apm-xgene-dma.txt new file mode 100644 index 000000000000..d3058768b23d --- /dev/null +++ b/Documentation/devicetree/bindings/dma/apm-xgene-dma.txt @@ -0,0 +1,47 @@ +Applied Micro X-Gene SoC DMA nodes + +DMA nodes are defined to describe on-chip DMA interfaces in +APM X-Gene SoC. + +Required properties for DMA interfaces: +- compatible: Should be "apm,xgene-dma". +- device_type: set to "dma". +- reg: Address and length of the register set for the device. + It contains the information of registers in the following order: + 1st - DMA control and status register address space. + 2nd - Descriptor ring control and status register address space. + 3rd - Descriptor ring command register address space. + 4th - Soc efuse register address space. +- interrupts: DMA has 5 interrupts sources. 1st interrupt is + DMA error reporting interrupt. 2nd, 3rd, 4th and 5th interrupts + are completion interrupts for each DMA channels. +- clocks: Reference to the clock entry. + +Optional properties: +- dma-coherent : Present if dma operations are coherent + +Example: + dmaclk: dmaclk@1f27c000 { + compatible = "apm,xgene-device-clock"; + #clock-cells = <1>; + clocks = <&socplldiv2 0>; + reg = <0x0 0x1f27c000 0x0 0x1000>; + reg-names = "csr-reg"; + clock-output-names = "dmaclk"; + }; + + dma: dma@1f270000 { + compatible = "apm,xgene-storm-dma"; + device_type = "dma"; + reg = <0x0 0x1f270000 0x0 0x10000>, + <0x0 0x1f200000 0x0 0x10000>, + <0x0 0x1b008000 0x0 0x2000>, + <0x0 0x1054a000 0x0 0x100>; + interrupts = <0x0 0x82 0x4>, + <0x0 0xb8 0x4>, + <0x0 0xb9 0x4>, + <0x0 0xba 0x4>, + <0x0 0xbb 0x4>; + dma-coherent; + clocks = <&dmaclk 0>; + }; |