From: Songjun Wu <songjun.wu@atmel.com>
Date: Mon, 20 Jun 2016 05:22:39 +0000 (+0800)
Subject: i2c: atmel: DT binding for i2c driver
X-Git-Tag: v2016.09-rc2~47^2~10
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=e3b7599be71aea67c67edfc44fcbd529df0c0eab;p=u-boot

i2c: atmel: DT binding for i2c driver

DT binding documentation for atmel i2c driver.

Signed-off-by: Songjun Wu <songjun.wu@atmel.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Acked-by: Heiko Schocher <hs@denx.de>
---

diff --git a/doc/device-tree-bindings/i2c/i2c-at91.txt b/doc/device-tree-bindings/i2c/i2c-at91.txt
new file mode 100644
index 0000000000..2065b7341a
--- /dev/null
+++ b/doc/device-tree-bindings/i2c/i2c-at91.txt
@@ -0,0 +1,26 @@
+I2C for Atmel platforms
+
+Required properties :
+- compatible : Must be "atmel,at91rm9200-i2c", "atmel,at91sam9261-i2c",
+     "atmel,at91sam9260-i2c", "atmel,at91sam9g20-i2c", "atmel,at91sam9g10-i2c",
+     "atmel,at91sam9x5-i2c", "atmel,sama5d4-i2c" or "atmel,sama5d2-i2c".
+- reg: physical base address of the controller and length of memory mapped
+     region.
+- #address-cells = <1>;
+- #size-cells = <0>;
+- clocks: phandles to input clocks.
+
+Optional properties:
+- clock-frequency: Desired I2C bus frequency in Hz, default value is 100000.
+- Child nodes conforming to i2c bus binding.
+
+Examples :
+
+i2c0: i2c@f8028000 {
+	compatible = "atmel,sama5d2-i2c";
+	reg = <0xf8028000 0x100>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+	clocks = <&twi0_clk>;
+	clock-frequency = <100000>;
+};