ARM: at91: sam9x5 add i2c DT support

For now on use i2c-gpio driver on the same pin as the hardware IP.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
index c294657a1f7e..f0104f4e6ab4 100644
--- a/arch/arm/boot/dts/at91sam9x5.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5.dtsi
@@ -188,4 +188,43 @@
                         status = "disabled";
                 };
         };
+
+        i2c@0 {
+                compatible = "i2c-gpio";
+                gpios = <&pioA 30 0 /* sda */
+                         &pioA 31 0 /* scl */
+                        >;
+                i2c-gpio,sda-open-drain;
+                i2c-gpio,scl-open-drain;
+                i2c-gpio,delay-us = <2>;        /* ~100 kHz */
+                #address-cells = <1>;
+                #size-cells = <0>;
+                status = "disabled";
+        };
+
+        i2c@1 {
+                compatible = "i2c-gpio";
+                gpios = <&pioC 0 0 /* sda */
+                         &pioC 1 0 /* scl */
+                        >;
+                i2c-gpio,sda-open-drain;
+                i2c-gpio,scl-open-drain;
+                i2c-gpio,delay-us = <2>;        /* ~100 kHz */
+                #address-cells = <1>;
+                #size-cells = <0>;
+                status = "disabled";
+        };
+
+        i2c@2 {
+                compatible = "i2c-gpio";
+                gpios = <&pioB 4 0 /* sda */
+                         &pioB 5 0 /* scl */
+                        >;
+                i2c-gpio,sda-open-drain;
+                i2c-gpio,scl-open-drain;
+                i2c-gpio,delay-us = <2>;        /* ~100 kHz */
+                #address-cells = <1>;
+                #size-cells = <0>;
+                status = "disabled";
+        };
 };