From 81247249691bdb0df333b3a326abe9b821f57acc Mon Sep 17 00:00:00 2001
From: Marti Bolivar <marti.bolivar@linaro.org>
Date: Wed, 20 Sep 2017 15:47:20 -0400
Subject: [PATCH] dts: stm32f4: add flash write-block-size

This makes the SoC flash compatible with the common nonvolatile flash
YAML schema, and provides a write alignment. It mirrors work done on
nRF chips for the DFU subsystem.

Signed-off-by: Marti Bolivar <marti.bolivar@linaro.org>
---
 dts/arm/st/stm32f4.dtsi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dts/arm/st/stm32f4.dtsi b/dts/arm/st/stm32f4.dtsi
index 638c2738b08..23f4174df07 100644
--- a/dts/arm/st/stm32f4.dtsi
+++ b/dts/arm/st/stm32f4.dtsi
@@ -23,7 +23,10 @@
 	};
 
 	flash0: flash@8000000 {
+		compatible = "soc-nv-flash";
 		reg = <0x08000000 DT_FLASH_SIZE>;
+
+		write-block-size = <1>;
 	};
 
 	sram0: memory@20000000 {