From fc95c1137968488a172c45dc66813fd3e79286e8 Mon Sep 17 00:00:00 2001
From: Igor Opaniuk <igor.opaniuk@toradex.com>
Date: Tue, 26 May 2020 13:23:43 +0300
Subject: overlays: add initial overlays

Naming format:
<machine>_<function>_overlay.dts

Signed-off-by: Igor Opaniuk <igor.opaniuk@toradex.com>
---
 overlays/apalis-imx8qm_st-m41t0_overlay.dts | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 overlays/apalis-imx8qm_st-m41t0_overlay.dts

(limited to 'overlays/apalis-imx8qm_st-m41t0_overlay.dts')

diff --git a/overlays/apalis-imx8qm_st-m41t0_overlay.dts b/overlays/apalis-imx8qm_st-m41t0_overlay.dts
new file mode 100644
index 0000000..5a91eef
--- /dev/null
+++ b/overlays/apalis-imx8qm_st-m41t0_overlay.dts
@@ -0,0 +1,29 @@
+// Enble the external m41t0 RTC from ST
+
+/dts-v1/;
+/plugin/;
+
+#include "dt-bindings/interrupt-controller/irq.h"
+#include "dt-bindings/gpio/gpio.h"
+
+/ {
+	compatible = "toradex,apalis-imx8qm";
+	fragment@0 {
+		target = <&i2c2>;
+		__overlay__ {
+			/* M41T0M6 real time clock on carrier board */
+			rtc_i2c: rtc@68 {
+				compatible = "st,m41t0";
+				reg = <0x68>;
+			};
+		};
+	};
+	fragment@1 {
+		target-path = "/aliases";
+		__overlay__ {
+			aliases {
+				rtc0 = &rtc_i2c;
+			};
+		};
+	};
+};
-- 
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