ARM: dts: EMIF and LPDDR2 device tree data for OMAP4 boards

Device tree data for the EMIF sdram controllers in OMAP4
and LPDDR2 memory devices attached to OMAP4 boards.

Reviewed-by: Grant Likely <grant.likely@secretlab.ca>
Tested-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Aneesh V <aneesh@ti.com>
[santosh.shilimkar@ti.com: Rebased against 3.6-rc]
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
[b-cousson@ti.com: Use label in board to access EMIF nodes]
Signed-off-by: Benoit Cousson <b-cousson@ti.com>

4 files changed, 107 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/elpida_ecb240abacn.dtsi b/arch/arm/boot/dts/elpida_ecb240abacn.dtsi
new file mode 100644
index 0000000..f97f70f8
--- /dev/null
+++ b/arch/arm/boot/dts/elpida_ecb240abacn.dtsi
@@ -0,0 +1,67 @@
+/*
+ * Common devices used in different OMAP boards
+ */
+
+/ {
+	elpida_ECB240ABACN: lpddr2 {
+		compatible	= "Elpida,ECB240ABACN","jedec,lpddr2-s4";
+		density		= <2048>;
+		io-width	= <32>;
+
+		tRPab-min-tck	= <3>;
+		tRCD-min-tck	= <3>;
+		tWR-min-tck	= <3>;
+		tRASmin-min-tck	= <3>;
+		tRRD-min-tck	= <2>;
+		tWTR-min-tck	= <2>;
+		tXP-min-tck	= <2>;
+		tRTP-min-tck	= <2>;
+		tCKE-min-tck	= <3>;
+		tCKESR-min-tck	= <3>;
+		tFAW-min-tck	= <8>;
+
+		timings_elpida_ECB240ABACN_400mhz: lpddr2-timings@0 {
+			compatible	= "jedec,lpddr2-timings";
+			min-freq	= <10000000>;
+			max-freq	= <400000000>;
+			tRPab		= <21000>;
+			tRCD		= <18000>;
+			tWR		= <15000>;
+			tRAS-min	= <42000>;
+			tRRD		= <10000>;
+			tWTR		= <7500>;
+			tXP		= <7500>;
+			tRTP		= <7500>;
+			tCKESR		= <15000>;
+			tDQSCK-max	= <5500>;
+			tFAW		= <50000>;
+			tZQCS		= <90000>;
+			tZQCL		= <360000>;
+			tZQinit		= <1000000>;
+			tRAS-max-ns	= <70000>;
+			tDQSCK-max-derated = <6000>;
+		};
+
+		timings_elpida_ECB240ABACN_200mhz: lpddr2-timings@1 {
+			compatible	= "jedec,lpddr2-timings";
+			min-freq	= <10000000>;
+			max-freq	= <200000000>;
+			tRPab		= <21000>;
+			tRCD		= <18000>;
+			tWR		= <15000>;
+			tRAS-min	= <42000>;
+			tRRD		= <10000>;
+			tWTR		= <10000>;
+			tXP		= <7500>;
+			tRTP		= <7500>;
+			tCKESR		= <15000>;
+			tDQSCK-max	= <5500>;
+			tFAW		= <50000>;
+			tZQCS		= <90000>;
+			tZQCL		= <360000>;
+			tZQinit		= <1000000>;
+			tRAS-max-ns	= <70000>;
+			tDQSCK-max-derated = <6000>;
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/omap4-panda.dts b/arch/arm/boot/dts/omap4-panda.dts
index 9880c12..20b966e 100644
--- a/arch/arm/boot/dts/omap4-panda.dts
+++ b/arch/arm/boot/dts/omap4-panda.dts
@@ -8,6 +8,7 @@
 /dts-v1/;
 
 /include/ "omap4.dtsi"
+/include/ "elpida_ecb240abacn.dtsi"
 
 / {
 	model = "TI OMAP4 PandaBoard";
@@ -126,3 +127,13 @@
 	ti,non-removable;
 	bus-width = <4>;
 };
+
+&emif1 {
+	cs1-used;
+	device-handle = <&elpida_ECB240ABACN>;
+};
+
+&emif2 {
+	cs1-used;
+	device-handle = <&elpida_ECB240ABACN>;
+};
diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
index 8869c1e..7e83a61 100644
--- a/arch/arm/boot/dts/omap4-sdp.dts
+++ b/arch/arm/boot/dts/omap4-sdp.dts
@@ -8,6 +8,7 @@
 /dts-v1/;
 
 /include/ "omap4.dtsi"
+/include/ "elpida_ecb240abacn.dtsi"
 
 / {
 	model = "TI OMAP4 SDP board";
@@ -227,6 +228,16 @@
 	ti,non-removable;
 };
 
+&emif1 {
+	cs1-used;
+	device-handle = <&elpida_ECB240ABACN>;
+};
+
+&emif2 {
+	cs1-used;
+	device-handle = <&elpida_ECB240ABACN>;
+};
+
 &keypad {
 	keypad,num-rows = <8>;
 	keypad,num-columns = <8>;
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 7fc45bb..c7dc11f 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -300,5 +300,23 @@
 			compatible = "ti,omap4-keypad";
 			ti,hwmods = "kbd";
 		};
+
+		emif1: emif@4c000000 {
+			compatible = "ti,emif-4d";
+			ti,hwmods = "emif1";
+			phy-type = <1>;
+			hw-caps-read-idle-ctrl;
+			hw-caps-ll-interface;
+			hw-caps-temp-alert;
+		};
+
+		emif2: emif@4d000000 {
+			compatible = "ti,emif-4d";
+			ti,hwmods = "emif2";
+			phy-type = <1>;
+			hw-caps-read-idle-ctrl;
+			hw-caps-ll-interface;
+			hw-caps-temp-alert;
+		};
 	};
 };