ARM: dts: omap5-evm: LPDDR2 memory device details for EVM

Samsung's K3PE0E000B memory part is used in OMAP5-evm board.
Adding timings and geometry details for Samsung's memory part and
attaching the same to device-handle of EMIF1/2.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>

diff --git a/arch/arm/boot/dts/omap5-evm.dts b/arch/arm/boot/dts/omap5-evm.dts
index 88d3d9b8c31876be29ea5ec893f2ab3f0552de88..8722c15bbba2869a0fcd617517b132d930c05899 100644 (file)
--- a/arch/arm/boot/dts/omap5-evm.dts
+++ b/arch/arm/boot/dts/omap5-evm.dts
@@ -8,6 +8,7 @@
 /dts-v1/;
 
 /include/ "omap5.dtsi"
+/include/ "samsung_k3pe0e000b.dtsi"
 
 / {
        model = "TI OMAP5 EVM board";
@@ -140,3 +141,13 @@
 &mcbsp3 {
        status = "disabled";
 };
+
+&emif1 {
+       cs1-used;
+       device-handle = <&samsung_K3PE0E000B>;
+};
+
+&emif2 {
+       cs1-used;
+       device-handle = <&samsung_K3PE0E000B>;
+};

diff --git a/arch/arm/boot/dts/samsung_k3pe0e000b.dtsi b/arch/arm/boot/dts/samsung_k3pe0e000b.dtsi
new file mode 100644 (file)
index 0000000..9657a5c
--- /dev/null
+++ b/arch/arm/boot/dts/samsung_k3pe0e000b.dtsi
@@ -0,0 +1,67 @@
+/*
+ * Timings and Geometry for Samsung K3PE0E000B memory part
+ */
+
+/ {
+       samsung_K3PE0E000B: lpddr2 {
+               compatible      = "Samsung,K3PE0E000B","jedec,lpddr2-s4";
+               density         = <4096>;
+               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_samsung_K3PE0E000B_533MHz: lpddr2-timings@0 {
+                       compatible      = "jedec,lpddr2-timings";
+                       min-freq        = <10000000>;
+                       max-freq        = <533333333>;
+                       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_samsung_K3PE0E000B_266MHz: lpddr2-timings@1 {
+                       compatible      = "jedec,lpddr2-timings";
+                       min-freq        = <10000000>;
+                       max-freq        = <266666666>;
+                       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>;
+               };
+       };
+};