diff options
Diffstat (limited to 'Documentation/devicetree/bindings/memory-controllers/ti/emif.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/memory-controllers/ti/emif.txt | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/memory-controllers/ti/emif.txt b/Documentation/devicetree/bindings/memory-controllers/ti/emif.txt index 0db60470ebb6..621b41c79faa 100644 --- a/Documentation/devicetree/bindings/memory-controllers/ti/emif.txt +++ b/Documentation/devicetree/bindings/memory-controllers/ti/emif.txt @@ -7,8 +7,10 @@ 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. + is the IP revision of the specific EMIF instance. For newer controllers, + compatible should be one of the following: + "ti,emif-am3352" + "ti,emif-am4372" - phy-type : <u32> indicating the DDR phy type. Following are the allowed values @@ -21,6 +23,13 @@ Required properties: the value shall be "emif<n>" where <n> is the number of the EMIF instance with base 1. +Required only for "ti,emif-am3352" and "ti,emif-am4372": +- sram : Phandles for generic sram driver nodes, + first should be type 'protect-exec' for the driver to use to copy + and run PM functions, second should be regular pool to be used for + data region for code. See Documentation/devicetree/bindings/sram/sram.txt + for more details. + 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 @@ -42,9 +51,9 @@ Optional properties: - hw-caps-temp-alert : Have this property if the controller has capability for generating SDRAM temperature alerts -Example: +-Examples: -emif1: emif@0x4c000000 { +emif1: emif@4c000000 { compatible = "ti,emif-4d"; ti,hwmods = "emif2"; phy-type = <1>; @@ -54,3 +63,11 @@ emif1: emif@0x4c000000 { hw-caps-ll-interface; hw-caps-temp-alert; }; + +/* From am33xx.dtsi */ +emif: emif@4c000000 { + compatible = "ti,emif-am3352"; + reg = <0x4C000000 0x1000>; + sram = <&pm_sram_code + &pm_sram_data>; +}; |