Adding upstream version 4.19.249.upstream/4.19.249upstream

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

1 files changed, 37 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/ata/pata-arasan.txt b/Documentation/devicetree/bindings/ata/pata-arasan.txt
new file mode 100644
index 000000000..872edc105
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/pata-arasan.txt
@@ -0,0 +1,37 @@
+* ARASAN PATA COMPACT FLASH CONTROLLER
+
+Required properties:
+- compatible: "arasan,cf-spear1340"
+- reg: Address range of the CF registers
+- interrupt: Should contain the CF interrupt number
+- clock-frequency: Interface clock rate, in Hz, one of
+       25000000
+       33000000
+       40000000
+       50000000
+       66000000
+       75000000
+      100000000
+      125000000
+      150000000
+      166000000
+      200000000
+
+Optional properties:
+- arasan,broken-udma: if present, UDMA mode is unusable
+- arasan,broken-mwdma: if present, MWDMA mode is unusable
+- arasan,broken-pio: if present, PIO mode is unusable
+- dmas: one DMA channel, as described in bindings/dma/dma.txt
+  required unless both UDMA and MWDMA mode are broken
+- dma-names: the corresponding channel name, must be "data"
+
+Example:
+
+	cf@fc000000 {
+		compatible = "arasan,cf-spear1340";
+		reg = <0xfc000000 0x1000>;
+		interrupt-parent = <&vic1>;
+		interrupts = <12>;
+		dmas = <&dma-controller 23>;
+		dma-names = "data";
+	};