From 91a7f89c8f88d3a7e102b2db13288e14864c7b65 Mon Sep 17 00:00:00 2001
From: Amelie Delaunay <amelie.delaunay@st.com>
Date: Thu, 23 Mar 2017 14:28:40 +0100
Subject: [PATCH] ARM: dts: stm32: set HSE_RTC clock frequency to 1 MHz on
 stm32f746

This patch set HSE_RTC clock frequency to 1 MHz, as the clock supplied to
the RTC must be 1 MHz.

Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
---
 arch/arm/boot/dts/stm32f746.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/stm32f746.dtsi b/arch/arm/boot/dts/stm32f746.dtsi
index 09d6649471b5..af4bfd4a40be 100644
--- a/arch/arm/boot/dts/stm32f746.dtsi
+++ b/arch/arm/boot/dts/stm32f746.dtsi
@@ -320,6 +320,8 @@
 			reg = <0x40023800 0x400>;
 			clocks = <&clk_hse>, <&clk_i2s_ckin>;
 			st,syscfg = <&pwrcfg>;
+			assigned-clocks = <&rcc 1 CLK_HSE_RTC>;
+			assigned-clock-rates = <1000000>;
 		};
 	};
 };