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

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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>
This commit is contained in:
Lokesh Vutla 2012-11-05 18:22:52 +05:30 • committed by Benoit Cousson
parent e6900ddf61
commit 4d2750f319
2 changed files with 78 additions and 0 deletions
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11
arch/arm/boot/dts/omap5-evm.dts
View file

@ -8,6 +8,7 @@
/dts-v1/; /dts-v1/;
/include/ "omap5.dtsi" /include/ "omap5.dtsi"
/include/ "samsung_k3pe0e000b.dtsi"
/ { / {
model = "TI OMAP5 EVM board"; model = "TI OMAP5 EVM board";
@ -140,3 +141,13 @@
&mcbsp3 { &mcbsp3 {
status = "disabled"; status = "disabled";
}; };
&emif1 {
cs1-used;
device-handle = <&samsung_K3PE0E000B>;
};
&emif2 {
cs1-used;
device-handle = <&samsung_K3PE0E000B>;
};

67
arch/arm/boot/dts/samsung_k3pe0e000b.dtsi Normal file
View file

@ -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>;
};
};
};