Commit 4d2750f3 authored by Lokesh Vutla's avatar Lokesh Vutla Committed by Benoit Cousson
Browse files

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: default avatarLokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: default avatarBenoit Cousson <b-cousson@ti.com>
parent e6900ddf

arch/arm/boot/dts/omap5-evm.dts

+11 −0
Original line number Diff line number Diff line
@@ -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>;

};

arch/arm/boot/dts/samsung_k3pe0e000b.dtsi

0 → 100644
+67 −0
Original line number Diff line number Diff line 
/*

 * 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>;

		};

	};

};