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authorJ. Bruce Fields <bfields@redhat.com>2012-10-09 18:35:22 -0400
committerJ. Bruce Fields <bfields@redhat.com>2012-10-09 18:35:22 -0400
commitf474af7051212b4efc8267583fad9c4ebf33ccff (patch)
tree1aa46ebc8065a341f247c2a2d9af2f624ad1d4f8 /Documentation/devicetree/bindings/dma
parent0d22f68f02c10d5d10ec5712917e5828b001a822 (diff)
parente3dd9a52cb5552c46c2a4ca7ccdfb4dab5c72457 (diff)
nfs: disintegrate UAPI for nfs
This is to complete part of the Userspace API (UAPI) disintegration for which the preparatory patches were pulled recently. After these patches, userspace headers will be segregated into: include/uapi/linux/.../foo.h for the userspace interface stuff, and: include/linux/.../foo.h for the strictly kernel internal stuff. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'Documentation/devicetree/bindings/dma')
-rw-r--r--Documentation/devicetree/bindings/dma/arm-pl330.txt3
-rw-r--r--Documentation/devicetree/bindings/dma/mmp-dma.txt74
2 files changed, 77 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/arm-pl330.txt b/Documentation/devicetree/bindings/dma/arm-pl330.txt
index a4cd273b2a6..36e27d54260 100644
--- a/Documentation/devicetree/bindings/dma/arm-pl330.txt
+++ b/Documentation/devicetree/bindings/dma/arm-pl330.txt
@@ -9,6 +9,9 @@ Required properties:
region.
- interrupts: interrupt number to the cpu.
+Optional properties:
+- dma-coherent : Present if dma operations are coherent
+
Example:
pdma0: pdma@12680000 {
diff --git a/Documentation/devicetree/bindings/dma/mmp-dma.txt b/Documentation/devicetree/bindings/dma/mmp-dma.txt
new file mode 100644
index 00000000000..a4fa4efa1d8
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/mmp-dma.txt
@@ -0,0 +1,74 @@
+* MARVELL MMP DMA controller
+
+Marvell Peripheral DMA Controller
+Used platfroms: pxa688, pxa910, pxa3xx, etc
+
+Required properties:
+- compatible: Should be "marvell,pdma-1.0"
+- reg: Should contain DMA registers location and length.
+- interrupts: Either contain all of the per-channel DMA interrupts
+ or one irq for pdma device
+- #dma-channels: Number of DMA channels supported by the controller.
+
+"marvell,pdma-1.0"
+Used platfroms: pxa25x, pxa27x, pxa3xx, pxa93x, pxa168, pxa910, pxa688.
+
+Examples:
+
+/*
+ * Each channel has specific irq
+ * ICU parse out irq channel from ICU register,
+ * while DMA controller may not able to distinguish the irq channel
+ * Using this method, interrupt-parent is required as demuxer
+ * For example, pxa688 icu register 0x128, bit 0~15 is PDMA channel irq,
+ * 18~21 is ADMA irq
+ */
+pdma: dma-controller@d4000000 {
+ compatible = "marvell,pdma-1.0";
+ reg = <0xd4000000 0x10000>;
+ interrupts = <0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15>;
+ interrupt-parent = <&intcmux32>;
+ #dma-channels = <16>;
+ };
+
+/*
+ * One irq for all channels
+ * Dmaengine driver (DMA controller) distinguish irq channel via
+ * parsing internal register
+ */
+pdma: dma-controller@d4000000 {
+ compatible = "marvell,pdma-1.0";
+ reg = <0xd4000000 0x10000>;
+ interrupts = <47>;
+ #dma-channels = <16>;
+ };
+
+
+Marvell Two Channel DMA Controller used specifically for audio
+Used platfroms: pxa688, pxa910
+
+Required properties:
+- compatible: Should be "marvell,adma-1.0" or "marvell,pxa910-squ"
+- reg: Should contain DMA registers location and length.
+- interrupts: Either contain all of the per-channel DMA interrupts
+ or one irq for dma device
+
+"marvell,adma-1.0" used on pxa688
+"marvell,pxa910-squ" used on pxa910
+
+Examples:
+
+/* each channel has specific irq */
+adma0: dma-controller@d42a0800 {
+ compatible = "marvell,adma-1.0";
+ reg = <0xd42a0800 0x100>;
+ interrupts = <18 19>;
+ interrupt-parent = <&intcmux32>;
+ };
+
+/* One irq for all channels */
+squ: dma-controller@d42a0800 {
+ compatible = "marvell,pxa910-squ";
+ reg = <0xd42a0800 0x100>;
+ interrupts = <46>;
+ };