From: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Date: Sun, 2 Sep 2018 10:08:31 +0000 (+0200)
Subject: ARM: tegra: colibri_t20: iris: integrate i2c real time clock support
X-Git-Tag: v4.20-rc1~66^2~31^2~37
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3ef8af133e87d631cf96833e114ca55112096e1d;p=thirdparty%2Flinux.git

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 496b96e229d21..b6d05da8c93c2 100644
--- 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";
 	};