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11c27069cf
Device tree data for the EMIF sdram controllers in OMAP4 and LPDDR2 memory devices attached to OMAP4 boards. Reviewed-by: Grant Likely <grant.likely@secretlab.ca> Tested-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Aneesh V <aneesh@ti.com> [santosh.shilimkar@ti.com: Rebased against 3.6-rc] Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> [b-cousson@ti.com: Use label in board to access EMIF nodes] Signed-off-by: Benoit Cousson <b-cousson@ti.com>
68 lines
1.4 KiB
Plaintext
68 lines
1.4 KiB
Plaintext
/*
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* Common devices used in different OMAP boards
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*/
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/ {
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elpida_ECB240ABACN: lpddr2 {
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compatible = "Elpida,ECB240ABACN","jedec,lpddr2-s4";
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density = <2048>;
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io-width = <32>;
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tRPab-min-tck = <3>;
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tRCD-min-tck = <3>;
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tWR-min-tck = <3>;
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tRASmin-min-tck = <3>;
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tRRD-min-tck = <2>;
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tWTR-min-tck = <2>;
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tXP-min-tck = <2>;
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tRTP-min-tck = <2>;
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tCKE-min-tck = <3>;
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tCKESR-min-tck = <3>;
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tFAW-min-tck = <8>;
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timings_elpida_ECB240ABACN_400mhz: lpddr2-timings@0 {
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compatible = "jedec,lpddr2-timings";
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min-freq = <10000000>;
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max-freq = <400000000>;
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tRPab = <21000>;
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tRCD = <18000>;
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tWR = <15000>;
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tRAS-min = <42000>;
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tRRD = <10000>;
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tWTR = <7500>;
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tXP = <7500>;
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tRTP = <7500>;
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tCKESR = <15000>;
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tDQSCK-max = <5500>;
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tFAW = <50000>;
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tZQCS = <90000>;
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tZQCL = <360000>;
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tZQinit = <1000000>;
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tRAS-max-ns = <70000>;
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tDQSCK-max-derated = <6000>;
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};
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timings_elpida_ECB240ABACN_200mhz: lpddr2-timings@1 {
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compatible = "jedec,lpddr2-timings";
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min-freq = <10000000>;
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max-freq = <200000000>;
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tRPab = <21000>;
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tRCD = <18000>;
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tWR = <15000>;
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tRAS-min = <42000>;
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tRRD = <10000>;
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tWTR = <10000>;
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tXP = <7500>;
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tRTP = <7500>;
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tCKESR = <15000>;
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tDQSCK-max = <5500>;
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tFAW = <50000>;
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tZQCS = <90000>;
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tZQCL = <360000>;
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tZQinit = <1000000>;
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tRAS-max-ns = <70000>;
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tDQSCK-max-derated = <6000>;
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};
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};
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};
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