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>
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;
+ };
};
};