dt-bindings: Add devicetree bindings
Add snapshot of device tree bindings from keystone common kernel, branch
"android-mainline-keystone-qcom-release" at c4c12103f9c0 ("Snap for 9228065
from e32903b9a63bb558df8b803b076619c53c16baad to
android-mainline-keystone-qcom-release").
Change-Id: I7682079615cbd9f29340a5c1f2a1d84ec441a1f1
Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
This commit is contained in:
Melody Olvera
44
bindings/hsi/client-devices.txt
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44
bindings/hsi/client-devices.txt
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Each HSI port is supposed to have one child node, which
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symbols the remote device connected to the HSI port. The
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following properties are standardized for HSI clients:
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Required HSI configuration properties:
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- hsi-channel-ids: A list of channel ids
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- hsi-rx-mode: Receiver Bit transmission mode ("stream" or "frame")
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- hsi-tx-mode: Transmitter Bit transmission mode ("stream" or "frame")
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- hsi-mode: May be used instead hsi-rx-mode and hsi-tx-mode if
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the transmission mode is the same for receiver and
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transmitter
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- hsi-speed-kbps: Max bit transmission speed in kbit/s
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- hsi-flow: RX flow type ("synchronized" or "pipeline")
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- hsi-arb-mode: Arbitration mode for TX frame ("round-robin", "priority")
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Optional HSI configuration properties:
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- hsi-channel-names: A list with one name per channel specified in the
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hsi-channel-ids property
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Device Tree node example for an HSI client:
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hsi-controller {
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hsi-port {
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modem: hsi-client {
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compatible = "nokia,n900-modem";
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hsi-channel-ids = <0>, <1>, <2>, <3>;
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hsi-channel-names = "mcsaab-control",
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"speech-control",
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"speech-data",
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"mcsaab-data";
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hsi-speed-kbps = <55000>;
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hsi-mode = "frame";
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hsi-flow = "synchronized";
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hsi-arb-mode = "round-robin";
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/* more client specific properties */
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};
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};
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};
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59
bindings/hsi/nokia-modem.txt
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59
bindings/hsi/nokia-modem.txt
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Nokia modem client bindings
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The Nokia modem HSI client follows the common HSI client binding
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and inherits all required properties. The following additional
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properties are needed by the Nokia modem HSI client:
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Required properties:
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- compatible: Should be one of
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"nokia,n900-modem"
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"nokia,n950-modem"
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"nokia,n9-modem"
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- hsi-channel-names: Should contain the following strings
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"mcsaab-control"
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"speech-control"
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"speech-data"
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"mcsaab-data"
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- gpios: Should provide a GPIO handler for each GPIO listed in
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gpio-names
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- gpio-names: Should contain the following strings
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"cmt_apeslpx" (for n900, n950, n9)
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"cmt_rst_rq" (for n900, n950, n9)
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"cmt_en" (for n900, n950, n9)
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"cmt_rst" (for n900)
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"cmt_bsi" (for n900)
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- interrupts: Should be IRQ handle for modem's reset indication
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Example:
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&ssi_port {
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modem: hsi-client {
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compatible = "nokia,n900-modem";
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pinctrl-names = "default";
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pinctrl-0 = <&modem_pins>;
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hsi-channel-ids = <0>, <1>, <2>, <3>;
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hsi-channel-names = "mcsaab-control",
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"speech-control",
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"speech-data",
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"mcsaab-data";
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hsi-speed-kbps = <55000>;
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hsi-mode = "frame";
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hsi-flow = "synchronized";
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hsi-arb-mode = "round-robin";
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interrupts-extended = <&gpio3 8 IRQ_TYPE_EDGE_FALLING>; /* 72 */
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gpios = <&gpio3 6 GPIO_ACTIVE_HIGH>, /* 70 */
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<&gpio3 9 GPIO_ACTIVE_HIGH>, /* 73 */
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<&gpio3 10 GPIO_ACTIVE_HIGH>, /* 74 */
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<&gpio3 11 GPIO_ACTIVE_HIGH>, /* 75 */
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<&gpio5 29 GPIO_ACTIVE_HIGH>; /* 157 */
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gpio-names = "cmt_apeslpx",
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"cmt_rst_rq",
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"cmt_en",
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"cmt_rst",
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"cmt_bsi";
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};
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};
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102
bindings/hsi/omap-ssi.txt
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102
bindings/hsi/omap-ssi.txt
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OMAP SSI controller bindings
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OMAP3's Synchronous Serial Interface (SSI) controller implements a
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legacy variant of MIPI's High Speed Synchronous Serial Interface (HSI),
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while the controller found inside OMAP4 is supposed to be fully compliant
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with the HSI standard.
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Required properties:
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- compatible: Should include "ti,omap3-ssi" or "ti,omap4-hsi"
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- reg-names: Contains the values "sys" and "gdd" (in this order).
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- reg: Contains a matching register specifier for each entry
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in reg-names.
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- interrupt-names: Contains the value "gdd_mpu".
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- interrupts: Contains matching interrupt information for each entry
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in interrupt-names.
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- ranges: Represents the bus address mapping between the main
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controller node and the child nodes below.
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- clock-names: Must include the following entries:
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"ssi_ssr_fck": The OMAP clock of that name
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"ssi_sst_fck": The OMAP clock of that name
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"ssi_ick": The OMAP clock of that name
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- clocks: Contains a matching clock specifier for each entry in
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clock-names.
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- #address-cells: Should be set to <1>
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- #size-cells: Should be set to <1>
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Each port is represented as a sub-node of the ti,omap3-ssi device.
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Required Port sub-node properties:
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- compatible: Should be set to the following value
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ti,omap3-ssi-port (applicable to OMAP34xx devices)
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ti,omap4-hsi-port (applicable to OMAP44xx devices)
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- reg-names: Contains the values "tx" and "rx" (in this order).
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- reg: Contains a matching register specifier for each entry
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in reg-names.
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- interrupts: Should contain interrupt specifiers for mpu interrupts
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0 and 1 (in this order).
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- ti,ssi-cawake-gpio: Defines which GPIO pin is used to signify CAWAKE
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events for the port. This is an optional board-specific
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property. If it's missing the port will not be
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enabled.
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Optional properties:
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- ti,hwmods: Shall contain TI interconnect module name if needed
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by the SoC
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Example for Nokia N900:
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ssi-controller@48058000 {
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compatible = "ti,omap3-ssi";
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/* needed until hwmod is updated to use the compatible string */
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ti,hwmods = "ssi";
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reg = <0x48058000 0x1000>,
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<0x48059000 0x1000>;
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reg-names = "sys",
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"gdd";
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interrupts = <55>;
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interrupt-names = "gdd_mpu";
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clocks = <&ssi_ssr_fck>,
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<&ssi_sst_fck>,
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<&ssi_ick>;
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clock-names = "ssi_ssr_fck",
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"ssi_sst_fck",
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"ssi_ick";
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#address-cells = <1>;
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#size-cells = <1>;
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ranges;
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ssi-port@4805a000 {
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compatible = "ti,omap3-ssi-port";
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reg = <0x4805a000 0x800>,
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<0x4805a800 0x800>;
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reg-names = "tx",
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"rx";
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interrupt-parent = <&intc>;
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interrupts = <67>,
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<68>;
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ti,ssi-cawake-gpio = <&gpio5 23 GPIO_ACTIVE_HIGH>; /* 151 */
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}
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ssi-port@4805a000 {
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compatible = "ti,omap3-ssi-port";
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reg = <0x4805b000 0x800>,
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<0x4805b800 0x800>;
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reg-names = "tx",
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"rx";
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interrupt-parent = <&intc>;
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interrupts = <69>,
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<70>;
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}
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}
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