Lines Matching +full:twr +full:- +full:min +full:- +full:tck
1 * LPDDR2 SDRAM memories compliant to JEDEC JESD209-2
4 - compatible : Should be one of - "jedec,lpddr2-nvm", "jedec,lpddr2-s2",
5 "jedec,lpddr2-s4"
7 "ti,jedec-lpddr2-s2" should be listed if the memory part is LPDDR2-S2 type
9 "ti,jedec-lpddr2-s4" should be listed if the memory part is LPDDR2-S4 type
11 "ti,jedec-lpddr2-nvm" should be listed if the memory part is LPDDR2-NVM type
13 - density : <u32> representing density in Mb (Mega bits)
15 - io-width : <u32> representing bus width. Possible values are 8, 16, and 32
21 These values shall be obtained from the device data-sheet.
22 - tRRD-min-tck
23 - tWTR-min-tck
24 - tXP-min-tck
25 - tRTP-min-tck
26 - tCKE-min-tck
27 - tRPab-min-tck
28 - tRCD-min-tck
29 - tWR-min-tck
30 - tRASmin-min-tck
31 - tCKESR-min-tck
32 - tFAW-min-tck
35 - The lpddr2 node may have one or more child nodes of type "lpddr2-timings".
36 "lpddr2-timings" provides AC timing parameters of the device for
37 a given speed-bin. The user may provide the timings for as many
38 speed-bins as is required. Please see Documentation/devicetree/
39 bindings/ddr/lpddr2-timings.txt for more information on "lpddr2-timings"
44 compatible = "Elpida,ECB240ABACN","jedec,lpddr2-s4";
46 io-width = <32>;
48 tRPab-min-tck = <3>;
49 tRCD-min-tck = <3>;
50 tWR-min-tck = <3>;
51 tRASmin-min-tck = <3>;
52 tRRD-min-tck = <2>;
53 tWTR-min-tck = <2>;
54 tXP-min-tck = <2>;
55 tRTP-min-tck = <2>;
56 tCKE-min-tck = <3>;
57 tCKESR-min-tck = <3>;
58 tFAW-min-tck = <8>;
60 timings_elpida_ECB240ABACN_400mhz: lpddr2-timings@0 {
61 compatible = "jedec,lpddr2-timings";
62 min-freq = <10000000>;
63 max-freq = <400000000>;
66 tWR = <15000>;
67 tRAS-min = <42000>;
73 tDQSCK-max = <5500>;
78 tRAS-max-ns = <70000>;
81 timings_elpida_ECB240ABACN_200mhz: lpddr2-timings@1 {
82 compatible = "jedec,lpddr2-timings";
83 min-freq = <10000000>;
84 max-freq = <200000000>;
87 tWR = <15000>;
88 tRAS-min = <42000>;
94 tDQSCK-max = <5500>;
99 tRAS-max-ns = <70000>;