From: Andrei Pistirica <andrei.pistirica@xxxxxxxxxxxxx>
Document the devicetree bindings for the SDHC peripheral found on
Microchip PIC32 class devices.
Signed-off-by: Andrei Pistirica <andrei.pistirica@xxxxxxxxxxxxx>
Signed-off-by: Joshua Henderson <joshua.henderson@xxxxxxxxxxxxx>
---
.../devicetree/bindings/mmc/sdhci-pic32.txt | 24 ++++++++++++++++++++
1 file changed, 24 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mmc/sdhci-pic32.txt
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-pic32.txt b/Documentation/devicetree/bindings/mmc/sdhci-pic32.txt
new file mode 100644
index 0000000..f16388c
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/sdhci-pic32.txt
@@ -0,0 +1,24 @@
+* Microchip PIC32 SDHCI Controller
+
+This file documents differences between the core properties in mmc.txt
+and the properties used by the sdhci-pic32 driver.
+
+Required properties:
+- compatible: Should be "microchip,pic32-sdhci"
+- reg: Should contain registers location and length
+- interrupts: Should contain interrupt
+- pinctrl: Should contain pinctrl for data and command lines
+
+Optional properties:
+- no-1-8-v: 1.8V voltage selection not supported
+- piomode: disable DMA support
+
+Example:
+
+ sdhci@1f8ec000 {
+ compatible = "microchip,pic32-sdhci";
+ reg = <0x1f8ec000 0x100>;
+ interrupts = <SDHC_EVENT DEFAULT_INT_PRI IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&REFCLKO4>, <&PBCLK5>;
+ clock-names = "base_clk", "sys_clk";
+ };
--
1.7.9.5
