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- * EMIF family of TI SDRAM controllers
- EMIF - External Memory Interface - is an SDRAM controller used in
- TI SoCs. EMIF supports, based on the IP revision, one or more of
- DDR2/DDR3/LPDDR2 protocols. This binding describes a given instance
- of the EMIF IP and memory parts attached to it.
- Required properties:
- - compatible : Should be of the form "ti,emif-<ip-rev>" where <ip-rev>
- is the IP revision of the specific EMIF instance.
- For am437x should be ti,emif-am4372.
- - phy-type : <u32> indicating the DDR phy type. Following are the
- allowed values
- <1> : Attila PHY
- <2> : Intelli PHY
- - device-handle : phandle to a "lpddr2" node representing the memory part
- - ti,hwmods : For TI hwmods processing and omap device creation
- the value shall be "emif<n>" where <n> is the number of the EMIF
- instance with base 1.
- Optional properties:
- - cs1-used : Have this property if CS1 of this EMIF
- instance has a memory part attached to it. If there is a memory
- part attached to CS1, it should be the same type as the one on CS0,
- so there is no need to give the details of this memory part.
- - cal-resistor-per-cs : Have this property if the board has one
- calibration resistor per chip-select.
- - hw-caps-read-idle-ctrl: Have this property if the controller
- supports read idle window programming
- - hw-caps-dll-calib-ctrl: Have this property if the controller
- supports dll calibration control
- - hw-caps-ll-interface : Have this property if the controller
- has a low latency interface and corresponding interrupt events
- - hw-caps-temp-alert : Have this property if the controller
- has capability for generating SDRAM temperature alerts
- Example:
- emif1: emif@0x4c000000 {
- compatible = "ti,emif-4d";
- ti,hwmods = "emif2";
- phy-type = <1>;
- device-handle = <&elpida_ECB240ABACN>;
- cs1-used;
- hw-caps-read-idle-ctrl;
- hw-caps-ll-interface;
- hw-caps-temp-alert;
- };
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