OSCL-LXR |
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0001 // SPDX-License-Identifier: GPL-2.0
0002 /*
0003 * Common devices used in different OMAP boards
0004 */
0005
0006 / {
0007 elpida_ECB240ABACN: lpddr2 {
0008 compatible = "elpida,ECB240ABACN","jedec,lpddr2-s4";
0009 density = <2048>;
0010 io-width = <32>;
0011
0012 tRPab-min-tck = <3>;
0013 tRCD-min-tck = <3>;
0014 tWR-min-tck = <3>;
0015 tRASmin-min-tck = <3>;
0016 tRRD-min-tck = <2>;
0017 tWTR-min-tck = <2>;
0018 tXP-min-tck = <2>;
0019 tRTP-min-tck = <2>;
0020 tCKE-min-tck = <3>;
0021 tCKESR-min-tck = <3>;
0022 tFAW-min-tck = <8>;
0023
0024 timings_elpida_ECB240ABACN_400mhz: lpddr2-timings@0 {
0025 compatible = "jedec,lpddr2-timings";
0026 min-freq = <10000000>;
0027 max-freq = <400000000>;
0028 tRPab = <21000>;
0029 tRCD = <18000>;
0030 tWR = <15000>;
0031 tRAS-min = <42000>;
0032 tRRD = <10000>;
0033 tWTR = <7500>;
0034 tXP = <7500>;
0035 tRTP = <7500>;
0036 tCKESR = <15000>;
0037 tDQSCK-max = <5500>;
0038 tFAW = <50000>;
0039 tZQCS = <90000>;
0040 tZQCL = <360000>;
0041 tZQinit = <1000000>;
0042 tRAS-max-ns = <70000>;
0043 tDQSCK-max-derated = <6000>;
0044 };
0045
0046 timings_elpida_ECB240ABACN_200mhz: lpddr2-timings@1 {
0047 compatible = "jedec,lpddr2-timings";
0048 min-freq = <10000000>;
0049 max-freq = <200000000>;
0050 tRPab = <21000>;
0051 tRCD = <18000>;
0052 tWR = <15000>;
0053 tRAS-min = <42000>;
0054 tRRD = <10000>;
0055 tWTR = <10000>;
0056 tXP = <7500>;
0057 tRTP = <7500>;
0058 tCKESR = <15000>;
0059 tDQSCK-max = <5500>;
0060 tFAW = <50000>;
0061 tZQCS = <90000>;
0062 tZQCL = <360000>;
0063 tZQinit = <1000000>;
0064 tRAS-max-ns = <70000>;
0065 tDQSCK-max-derated = <6000>;
0066 };
0067 };
0068 };
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