Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / mmc / renesas,mmcif.txt

diff --git a/kernel/Documentation/devicetree/bindings/mmc/renesas,mmcif.txt b/kernel/Documentation/devicetree/bindings/mmc/renesas,mmcif.txt
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+* Renesas Multi Media Card Interface (MMCIF) Controller
+
+This file documents differences between the core properties in mmc.txt
+and the properties used by the MMCIF device.
+
+
+Required properties:
+
+- compatible: must contain one of the following
+       - "renesas,mmcif-r8a7740" for the MMCIF found in r8a7740 SoCs
+       - "renesas,mmcif-r8a7790" for the MMCIF found in r8a7790 SoCs
+       - "renesas,mmcif-r8a7791" for the MMCIF found in r8a7791 SoCs
+       - "renesas,sh-mmcif" for the generic MMCIF
+
+- clocks: reference to the functional clock
+
+- dmas: reference to the DMA channels, one per channel name listed in the
+  dma-names property.
+- dma-names: must contain "tx" for the transmit DMA channel and "rx" for the
+  receive DMA channel.
+
+
+Example: R8A7790 (R-Car H2) MMCIF0
+
+       mmcif0: mmc@ee200000 {
+               compatible = "renesas,mmcif-r8a7790", "renesas,sh-mmcif";
+               reg = <0 0xee200000 0 0x80>;
+               interrupts = <0 169 IRQ_TYPE_LEVEL_HIGH>;
+               clocks = <&mstp3_clks R8A7790_CLK_MMCIF0>;
+               dmas = <&dmac0 0xd1>, <&dmac0 0xd2>;
+               dma-names = "tx", "rx";
+       };