ARM: tegra: colibri_t20: iris: integrate i2c real time clock support

Integrate support for GEN1_I2C aka I2C_SDA/SCL on SODIMM pin 194/196 and
the M41T0M6 real time clock on the carrier board.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/arch/arm/boot/dts/tegra20-colibri-iris.dts b/arch/arm/boot/dts/tegra20-colibri-iris.dts
index 496b96e..b6d05da 100644 (file)
--- a/arch/arm/boot/dts/tegra20-colibri-iris.dts
+++ b/arch/arm/boot/dts/tegra20-colibri-iris.dts
@@ -56,6 +56,21 @@
                status = "okay";
        };
 
+       /*
+        * GEN1_I2C: I2C_SDA/SCL on SODIMM pin 194/196 (e.g. RTC on carrier
+        * board)
+        */
+       i2c@7000c000 {
+               status = "okay";
+               clock-frequency = <400000>;
+
+               /* M41T0M6 real time clock on carrier board */
+               rtc@68 {
+                       compatible = "st,m41t0";
+                       reg = <0x68>;
+               };
+       };
+
        i2c_ddc: i2c@7000c400 {
                status = "okay";
        };