omap-ssi.rar

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  • Unix_Linux
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  • 2015-05-11 12:14
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I2C driver for PKUnity-v3 SoC Code specific to PKUnity SoC and UniCore ISA.
omap-ssi.rar
  • i2c-puv3.c
    6KB
  • omap-ssi.txt
    2.7KB
内容介绍
OMAP SSI controller bindings OMAP Synchronous Serial Interface (SSI) controller implements a legacy variant of MIPI's High Speed Synchronous Serial Interface (HSI). Required properties: - compatible: Should include "ti,omap3-ssi". - reg-names: Contains the values "sys" and "gdd" (in this order). - reg: Contains a matching register specifier for each entry in reg-names. - interrupt-names: Contains the value "gdd_mpu". - interrupts: Contains matching interrupt information for each entry in interrupt-names. - ranges: Represents the bus address mapping between the main controller node and the child nodes below. - clock-names: Must include the following entries: "ssi_ssr_fck": The OMAP clock of that name "ssi_sst_fck": The OMAP clock of that name "ssi_ick": The OMAP clock of that name - clocks: Contains a matching clock specifier for each entry in clock-names. - #address-cells: Should be set to <1> - #size-cells: Should be set to <1> Each port is represented as a sub-node of the ti,omap3-ssi device. Required Port sub-node properties: - compatible: Should be set to the following value ti,omap3-ssi-port (applicable to OMAP34xx devices) - reg-names: Contains the values "tx" and "rx" (in this order). - reg: Contains a matching register specifier for each entry in reg-names. - interrupt-parent Should be a phandle for the interrupt controller - interrupts: Should contain interrupt specifiers for mpu interrupts 0 and 1 (in this order). - ti,ssi-cawake-gpio: Defines which GPIO pin is used to signify CAWAKE events for the port. This is an optional board-specific property. If it's missing the port will not be enabled. Example for Nokia N900: ssi-controller@48058000 { compatible = "ti,omap3-ssi"; /* needed until hwmod is updated to use the compatible string */ ti,hwmods = "ssi"; reg = <0x48058000 0x1000>, <0x48059000 0x1000>; reg-names = "sys", "gdd"; interrupts = <55>; interrupt-names = "gdd_mpu"; clocks = <&ssi_ssr_fck>, <&ssi_sst_fck>, <&ssi_ick>; clock-names = "ssi_ssr_fck", "ssi_sst_fck", "ssi_ick"; #address-cells = <1>; #size-cells = <1>; ranges; ssi-port@4805a000 { compatible = "ti,omap3-ssi-port"; reg = <0x4805a000 0x800>, <0x4805a800 0x800>; reg-names = "tx", "rx"; interrupt-parent = <&intc>; interrupts = <67>, <68>; ti,ssi-cawake-gpio = <&gpio5 23 GPIO_ACTIVE_HIGH>; /* 151 */ } ssi-port@4805a000 { compatible = "ti,omap3-ssi-port"; reg = <0x4805b000 0x800>, <0x4805b800 0x800>; reg-names = "tx", "rx"; interrupt-parent = <&intc>; interrupts = <69>, <70>; status = "disabled"; /* second port is not used on N900 */ } }
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