1 * EMIF family of TI SDRAM controllers
3 EMIF - External Memory Interface - is an SDRAM controller used in
4 TI SoCs. EMIF supports, based on the IP revision, one or more of
5 DDR2/DDR3/LPDDR2 protocols. This binding describes a given instance
6 of the EMIF IP and memory parts attached to it.
9 - compatible : Should be of the form "ti,emif-<ip-rev>" where <ip-rev>
10 is the IP revision of the specific EMIF instance. For newer controllers,
11 compatible should be one of the following:
15 - phy-type : <u32> indicating the DDR phy type. Following are the
20 - device-handle : phandle to a "lpddr2" node representing the memory part
22 - ti,hwmods : For TI hwmods processing and omap device creation
23 the value shall be "emif<n>" where <n> is the number of the EMIF
26 Required only for "ti,emif-am3352" and "ti,emif-am4372":
27 - sram : Phandles for generic sram driver nodes,
28 first should be type 'protect-exec' for the driver to use to copy
29 and run PM functions, second should be regular pool to be used for
30 data region for code. See Documentation/devicetree/bindings/sram/sram.txt
34 - cs1-used : Have this property if CS1 of this EMIF
35 instance has a memory part attached to it. If there is a memory
36 part attached to CS1, it should be the same type as the one on CS0,
37 so there is no need to give the details of this memory part.
39 - cal-resistor-per-cs : Have this property if the board has one
40 calibration resistor per chip-select.
42 - hw-caps-read-idle-ctrl: Have this property if the controller
43 supports read idle window programming
45 - hw-caps-dll-calib-ctrl: Have this property if the controller
46 supports dll calibration control
48 - hw-caps-ll-interface : Have this property if the controller
49 has a low latency interface and corresponding interrupt events
51 - hw-caps-temp-alert : Have this property if the controller
52 has capability for generating SDRAM temperature alerts
56 emif1: emif@4c000000 {
57 compatible = "ti,emif-4d";
60 device-handle = <&elpida_ECB240ABACN>;
62 hw-caps-read-idle-ctrl;
67 /* From am33xx.dtsi */
69 compatible = "ti,emif-am3352";
70 reg = <0x4C000000 0x1000>;