Device tree data for the EMIF sdram controllers in OMAP4
and DDR memories attached to OMAP4 boards.
Cc: Rajendra Nayak <rnayak@xxxxxx>
Cc: Benoit Cousson <b-cousson@xxxxxx>
Signed-off-by: Aneesh V <aneesh@xxxxxx>
---
arch/arm/boot/dts/omap-common-devices.dtsi | 63 ++++++++++++++++++++++++++++
arch/arm/boot/dts/omap4-panda.dts | 13 ++++++
arch/arm/boot/dts/omap4-sdp.dts | 13 ++++++
arch/arm/boot/dts/omap4.dtsi | 19 ++++++++
4 files changed, 108 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/boot/dts/omap-common-devices.dtsi
diff --git a/arch/arm/boot/dts/omap-common-devices.dtsi b/arch/arm/boot/dts/omap-common-devices.dtsi
new file mode 100644
index 0000000..bac2a40
--- /dev/null
+++ b/arch/arm/boot/dts/omap-common-devices.dtsi
@@ -0,0 +1,63 @@
+/*
+ * Common devices used in different OMAP boards
+ */
+
+/ {
+ elpida_ECB240ABACN: ddr {
+ compatible = "Elpida,ECB240ABACN","jedec,lpddr2-s4";
+ density = "2Gb";
+ io-width = "x32";
+
+ tRPab-min-nCK = <3>;
+ tRCD-min-nCK = <3>;
+ tWR-min-nCK = <3>;
+ tRASmin-min-nCK = <3>;
+ tRRD-min-nCK = <2>;
+ tWTR-min-nCK = <2>;
+ tXP-min-nCK = <2>;
+ tRTP-min-nCK = <2>;
+ tCKE-min-nCK = <3>;
+ tCKESR-min-nCK = <3>;
+ tFAW-min-nCK = <8>;
+
+ timings_elpida_ECB240ABACN_400mhz: ddr-timings@1 {
+ min-freq = <10000000>;
+ max-freq = <400000000>;
+ tRPab-ps = <21000>;
+ tRCD-ps = <18000>;
+ tWR-ps = <15000>;
+ tRAS-min-ps = <42000>;
+ tRRD-ps = <10000>;
+ tWTR-ps = <7500>;
+ tXP-ps = <7500>;
+ tRTP-ps = <7500>;
+ tCKESR-ps = <15000>;
+ tDQSCK-max-ps = <5500>;
+ tFAW-ps = <50000>;
+ tZQCS-ps = <90000>;
+ tZQCL-ps = <360000>;
+ tZQinit-ps = <1000000>;
+ tRAS-max-ns = <70000>;
+ };
+
+ timings_elpida_ECB240ABACN_200mhz: ddr-timings@ {
+ min-freq = <10000000>;
+ max-freq = <200000000>;
+ tRPab-ps = <21000>;
+ tRCD-ps = <18000>;
+ tWR-ps = <15000>;
+ tRAS-min-ps = <42000>;
+ tRRD-ps = <10000>;
+ tWTR-ps = <10000>;
+ tXP-ps = <7500>;
+ tRTP-ps = <7500>;
+ tCKESR-ps = <15000>;
+ tDQSCK-max-ps = <5500>;
+ tFAW-ps = <50000>;
+ tZQCS-ps = <90000>;
+ tZQCL-ps = <360000>;
+ tZQinit-ps = <1000000>;
+ tRAS-max-ns = <70000>;
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/omap4-panda.dts b/arch/arm/boot/dts/omap4-panda.dts
index c702657..3446f4f 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/ "omap-common-devices.dtsi"
/ {
model = "TI OMAP4 PandaBoard";
@@ -26,4 +27,16 @@
device_type = "memory";
reg = <0x80000000 0x40000000>; /* 1 GB */
};
+
+ ocp {
+ emif1: emif@0x4c000000 {
+ cs1-used;
+ ddr-handle = <&elpida_ECB240ABACN>;
+ };
+
+ emif2: emif@0x4d000000 {
+ cs1-used;
+ ddr-handle = <&elpida_ECB240ABACN>;
+ };
+ };
};
diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
index 066e28c..799ac0a 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/ "omap-common-devices.dtsi"
/ {
model = "TI OMAP4 SDP board";
@@ -26,4 +27,16 @@
device_type = "memory";
reg = <0x80000000 0x40000000>; /* 1 GB */
};
+
+ ocp {
+ emif1: emif@0x4c000000 {
+ cs1-used;
+ ddr-handle = <&elpida_ECB240ABACN>;
+ };
+
+ emif2: emif@0x4d000000 {
+ cs1-used;
+ ddr-handle = <&elpida_ECB240ABACN>;
+ };
+ };
};
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 4c61c82..5393ae5 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -99,5 +99,24 @@
reg = <0x48241000 0x1000>,
<0x48240100 0x0100>;
};
+
+ emif1: emif@0x4c000000 {
+ compatible = "ti,emif-lpddr2";
+ ti,hwmods = "emif1";
+ phy-type = "phy-type-omap4";
+ hw-caps-read-idle-ctrl;
+ hw-caps-ll-interface;
+ hw-caps-temp-alert;
+ };
+
+ emif2: emif@0x4d000000 {
+ compatible = "ti,emif-lpddr2";
+ ti,hwmods = "emif2";
+ phy-type = "phy-type-omap4";
+ hw-caps-read-idle-ctrl;
+ hw-caps-ll-interface;
+ hw-caps-temp-alert;
+ };
+
};
};
--
1.7.1
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