From 6c9a10034a21680c4b2595d9b6468a767dedebca Mon Sep 17 00:00:00 2001
From: Vikas Manocha <vikas.manocha@st.com>
Date: Mon, 10 Apr 2017 15:02:56 -0700
Subject: stm32f7: sdram: use sdram device tree node to configure sdram
 controller

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
cc: Christophe KERELLO <christophe.kerello@st.com>
---
 arch/arm/dts/stm32f746-disco.dts | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'arch/arm/dts/stm32f746-disco.dts')

diff --git a/arch/arm/dts/stm32f746-disco.dts b/arch/arm/dts/stm32f746-disco.dts
index 5846b0d7e74..f098d2eba31 100644
--- a/arch/arm/dts/stm32f746-disco.dts
+++ b/arch/arm/dts/stm32f746-disco.dts
@@ -47,6 +47,7 @@
 
 /dts-v1/;
 #include "stm32f746.dtsi"
+#include <dt-bindings/memory/stm32-sdram.h>
 
 / {
 	model = "STMicroelectronics STM32F746-DISCO board";
@@ -81,6 +82,15 @@
 	pinctrl-0 = <&fmc_pins>;
 	pinctrl-names = "default";
 	status = "okay";
+
+	mr-nbanks = <1>;
+	/* sdram memory configuration from sdram datasheet IS42S16400J */
+	bank1: bank@0 {
+	       st,sdram-control = /bits/ 8 <NO_COL_8 NO_ROW_12 MWIDTH_16 BANKS_2
+	       				    CAS_3 RD_BURST_EN RD_PIPE_DL_0>;
+	       st,sdram-timing = /bits/ 8 <TMRD_1 TXSR_60 TRAS_42 TRC_60 TRP_18
+	       				   TRCD_18>;
+       };
 };
 
 &mac {
-- 
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