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@@ -0,0 +1,74 @@
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+* MARVELL MMP DMA controller
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+
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+Marvell Peripheral DMA Controller
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+Used platfroms: pxa688, pxa910, pxa3xx, etc
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+
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+Required properties:
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+- compatible: Should be "marvell,pdma-1.0"
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+- reg: Should contain DMA registers location and length.
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+- interrupts: Either contain all of the per-channel DMA interrupts
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+ or one irq for pdma device
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+- #dma-channels: Number of DMA channels supported by the controller.
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+
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+"marvell,pdma-1.0"
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+Used platfroms: pxa25x, pxa27x, pxa3xx, pxa93x, pxa168, pxa910, pxa688.
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+
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+Examples:
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+
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+/*
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+ * Each channel has specific irq
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+ * ICU parse out irq channel from ICU register,
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+ * while DMA controller may not able to distinguish the irq channel
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+ * Using this method, interrupt-parent is required as demuxer
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+ * For example, pxa688 icu register 0x128, bit 0~15 is PDMA channel irq,
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+ * 18~21 is ADMA irq
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+ */
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+pdma: dma-controller@d4000000 {
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+ compatible = "marvell,pdma-1.0";
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+ reg = <0xd4000000 0x10000>;
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+ interrupts = <0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15>;
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+ interrupt-parent = <&intcmux32>;
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+ #dma-channels = <16>;
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+ };
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+
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+/*
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+ * One irq for all channels
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+ * Dmaengine driver (DMA controller) distinguish irq channel via
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+ * parsing internal register
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+ */
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+pdma: dma-controller@d4000000 {
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+ compatible = "marvell,pdma-1.0";
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+ reg = <0xd4000000 0x10000>;
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+ interrupts = <47>;
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+ #dma-channels = <16>;
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+ };
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+
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+
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+Marvell Two Channel DMA Controller used specifically for audio
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+Used platfroms: pxa688, pxa910
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+
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+Required properties:
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+- compatible: Should be "marvell,adma-1.0" or "marvell,pxa910-squ"
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+- reg: Should contain DMA registers location and length.
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+- interrupts: Either contain all of the per-channel DMA interrupts
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+ or one irq for dma device
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+
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+"marvell,adma-1.0" used on pxa688
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+"marvell,pxa910-squ" used on pxa910
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+
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+Examples:
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+
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+/* each channel has specific irq */
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+adma0: dma-controller@d42a0800 {
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+ compatible = "marvell,adma-1.0";
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+ reg = <0xd42a0800 0x100>;
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+ interrupts = <18 19>;
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+ interrupt-parent = <&intcmux32>;
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+ };
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+
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+/* One irq for all channels */
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+squ: dma-controller@d42a0800 {
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+ compatible = "marvell,pxa910-squ";
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+ reg = <0xd42a0800 0x100>;
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+ interrupts = <46>;
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+ };
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