Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-mmc.txt b/Documentation/devicetree/bindings/mmc/fsl-imx-mmc.txt
new file mode 100644
index 000000000..184ccffe2
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/fsl-imx-mmc.txt
@@ -0,0 +1,23 @@
+* Freescale Secure Digital Host Controller for i.MX2/3 series
+
+This file documents differences to the properties defined in mmc.txt.
+
+Required properties:
+- compatible : Should be "fsl,<chip>-mmc", chip can be imx21 or imx31
+
+Optional properties:
+- dmas: One DMA phandle with arguments as defined by the devicetree bindings
+	of the used DMA controller.
+- dma-names: Has to be "rx-tx".
+
+Example:
+
+sdhci1: sdhci@10014000 {
+	compatible = "fsl,imx27-mmc", "fsl,imx21-mmc";
+	reg = <0x10014000 0x1000>;
+	interrupts = <11>;
+	dmas = <&dma 7>;
+	dma-names = "rx-tx";
+	bus-width = <4>;
+	cd-gpios = <&gpio3 29>;
+};