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ARM: dts: EMIF and LPDDR2 device tree data for OMAP4 boards 

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>
hifive-unleashed-5.1
Aneesh V 2012-01-20 20:35:26 +05:30 committed by Benoit Cousson
parent 6bc9c66e56
commit 11c27069cf
4 changed files with 107 additions and 0 deletions
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67
arch/arm/boot/dts/elpida_ecb240abacn.dtsi 100644
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@ -0,0 +1,67 @@
/*
* 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>;
};
};
};

11
arch/arm/boot/dts/omap4-panda.dts
View File

@ -8,6 +8,7 @@
/dts-v1/;
/include/ "omap4.dtsi"
/include/ "elpida_ecb240abacn.dtsi"
/ {
model = "TI OMAP4 PandaBoard";
@ -126,3 +127,13 @@
ti,non-removable;
bus-width = <4>;
};
&emif1 {
cs1-used;
device-handle = <&elpida_ECB240ABACN>;
};
&emif2 {
cs1-used;
device-handle = <&elpida_ECB240ABACN>;
};

11
arch/arm/boot/dts/omap4-sdp.dts
View File

@ -8,6 +8,7 @@
/dts-v1/;
/include/ "omap4.dtsi"
/include/ "elpida_ecb240abacn.dtsi"
/ {
model = "TI OMAP4 SDP board";
@ -227,6 +228,16 @@
ti,non-removable;
};
&emif1 {
cs1-used;
device-handle = <&elpida_ECB240ABACN>;
};
&emif2 {
cs1-used;
device-handle = <&elpida_ECB240ABACN>;
};
&keypad {
keypad,num-rows = <8>;
keypad,num-columns = <8>;

18
arch/arm/boot/dts/omap4.dtsi
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@ -300,5 +300,23 @@
compatible = "ti,omap4-keypad";
ti,hwmods = "kbd";
};
emif1: emif@4c000000 {
compatible = "ti,emif-4d";
ti,hwmods = "emif1";
phy-type = <1>;
hw-caps-read-idle-ctrl;
hw-caps-ll-interface;
hw-caps-temp-alert;
};
emif2: emif@4d000000 {
compatible = "ti,emif-4d";
ti,hwmods = "emif2";
phy-type = <1>;
hw-caps-read-idle-ctrl;
hw-caps-ll-interface;
hw-caps-temp-alert;
};
};
};