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| author | Lokesh Vutla <lokeshvutla@ti.com> | 2012-11-05 13:52:52 +0100 |
|---|---|---|
| committer | Benoit Cousson <b-cousson@ti.com> | 2012-11-05 18:38:27 +0100 |
| commit | 4d2750f31935719453ac65829a09766cb22f9943 (patch) | |
| tree | 787f127990d6759036461b21954091acd234d358 | |
| parent | ARM: dts: omap5: EMIF device tree data for OMAP5 boards (diff) | |
| download | linux-4d2750f31935719453ac65829a09766cb22f9943.tar.xz linux-4d2750f31935719453ac65829a09766cb22f9943.zip | |
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>
| -rw-r--r-- | arch/arm/boot/dts/omap5-evm.dts | 11 | ||||
| -rw-r--r-- | arch/arm/boot/dts/samsung_k3pe0e000b.dtsi | 67 |
2 files changed, 78 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/omap5-evm.dts b/arch/arm/boot/dts/omap5-evm.dts index 88d3d9b8c318..8722c15bbba2 100644 --- 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 index 000000000000..9657a5cbc3ad --- /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>; + }; + }; +}; |