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
/*
|
|
* Common devices used in different OMAP boards
|
|
*/
|
|
|
|
/ {
|
|
elpida_ECB240ABACN: lpddr2 {
|
|
compatible = "Elpida,ECB240ABACN","jedec,lpddr2-s4";
|
|
density = <2048>;
|
|
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_elpida_ECB240ABACN_400mhz: lpddr2-timings@0 {
|
|
compatible = "jedec,lpddr2-timings";
|
|
min-freq = <10000000>;
|
|
max-freq = <400000000>;
|
|
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_elpida_ECB240ABACN_200mhz: lpddr2-timings@1 {
|
|
compatible = "jedec,lpddr2-timings";
|
|
min-freq = <10000000>;
|
|
max-freq = <200000000>;
|
|
tRPab = <21000>;
|
|
tRCD = <18000>;
|
|
tWR = <15000>;
|
|
tRAS-min = <42000>;
|
|
tRRD = <10000>;
|
|
tWTR = <10000>;
|
|
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>;
|
|
};
|
|
};
|
|
};
|