290 lines
11 KiB
Plaintext
290 lines
11 KiB
Plaintext
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MSM SoC HSUSB controllers
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OTG:
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Required properties :
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- compatible : should be "qcom,hsusb-otg"
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- regs : offset and length of the register set in the memory map
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- interrupts: IRQ line
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- interrupt-names: OTG interrupt name(s) referenced in interrupts above
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HSUSB OTG expects "core_irq" which is IRQ line from CORE and
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optional ones are described in next section.
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- qcom,hsusb-otg-phy-type: PHY type can be one of
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1 - Chipidea 45nm PHY
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2 - Synopsis 28nm PHY
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- qcom,hsusb-otg-mode: Operational mode. Can be one of
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1 - Peripheral only mode
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2 - Host only mode
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3 - OTG mode
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Based on the mode, OTG driver registers platform devices for
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gadget and host.
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- qcom,hsusb-otg-control: OTG control (VBUS and ID notifications)
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can be one of
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1 - PHY control
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2 - PMIC control
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3 - User control (via debugfs)
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- <supply-name>-supply: handle to the regulator device tree node
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Required "supply-name" is "HSUSB_VDDCX" (when voting for VDDCX) or
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"hsusb_vdd_dig" (when voting for VDDCX Corner voltage),
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"HSUSB_1p8-supply" and "HSUSB_3p3-supply".
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Optional properties :
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- interrupt-names : Optional interrupt resource entries are:
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"async_irq" : Interrupt from HSPHY for asynchronous wakeup events in LPM.
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"pmic_id_irq" : Interrupt from PMIC for external ID pin notification.
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- qcom,hsusb-otg-disable-reset: If present then core is RESET only during
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init, otherwise core is RESET for every cable disconnect as well
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- qcom,hsusb-otg-pnoc-errata-fix: If present then workaround for PNOC
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performance issue is applied which requires changing the mem-type
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attribute via VMIDMT.
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- qcom,hsusb-otg-default-mode: The default USB mode after boot-up.
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Applicable only when OTG is controlled by user. Can be one of
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0 - None. Low power mode
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1 - Peripheral
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2 - Host
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- qcom,hsusb-otg-phy-init-seq: PHY configuration sequence. val, reg pairs
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terminate with -1
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- qcom,hsusb-otg-power-budget: VBUS power budget in mA
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0 will be treated as 500mA
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- qcom,hsusb-otg-pclk-src-name: The source of pclk
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- Refer to "Documentation/devicetree/bindings/arm/msm/msm_bus.txt" for
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below optional properties:
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- qcom,msm_bus,name
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- qcom,msm_bus,num_cases
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- qcom,msm_bus,active_only
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- qcom,msm_bus,num_paths
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- qcom,msm_bus,vectors
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- qcom,hsusb-otg-lpm-on-dev-suspend: If present then USB enter to
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low power mode upon receiving bus suspend.
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- qcom,hsusb-otg-clk-always-on-workaround: If present then USB core clocks
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remain active upon receiving bus suspend and USB cable is connected.
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Used for allowing USB to respond for remote wakup.
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- qcom,hsusb-otg-delay-lpm: If present then USB core will wait one second
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after disconnect before entering low power mode.
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- qcom,hsusb-otg-delay-lpm-hndshk-on-disconnect: If present then USB core will
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wait for the handshake with the IPA to complete before entering low
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power mode.
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- <supply-name>-supply: handle to the regulator device tree node.
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Optional "supply-name" is "vbus_otg" to supply vbus in host mode.
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- qcom,vdd-voltage-level: This property must be a list of three integer
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values (no, min, max) where each value represents either a voltage
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in microvolts or a value corresponding to voltage corner.
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- qcom,dp-manual-pullup: If present, vbus is not routed to USB controller/phy
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and controller driver therefore enables pull-up explicitly before
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starting controller using usbcmd run/stop bit.
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- qcom,usb2-enable-hsphy2: If present then USB2 controller is connected to 2nd
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HSPHY.
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- qcom,hsusb-log2-itc: value of 2^(log2_itc-1) will be used as the
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interrupt threshold (ITC), when log2_itc is between 1 to 7.
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- qcom,hsusb-l1-supported: If present, the device supports l1 (Link power
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management).
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- qcom,hsusb-otg-dpsehv-int: If present, indicates mpm interrupt to be configured
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for detection of dp line transition during VDD minimization.
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- qcom,hsusb-otg-dmsehv-int: If present, indicates mpm interrupt to be configured
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for detection of dm line transition during VDD minimization.
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- qcom,hsusb-otg-vddmin-gpio = If present, indicates a gpio that will be used
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to supply voltage to the D+ line during VDD minimization and peripheral
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bus suspend. If not exists, then VDD minimization will not be allowed
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during peripheral bus suspend.
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Example HSUSB OTG controller device node :
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usb@f9690000 {
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compatible = "qcom,hsusb-otg";
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reg = <0xf9690000 0x400>;
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interrupts = <134>;
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interrupt-names = "core_irq";
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qcom,hsusb-otg-phy-type = <2>;
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qcom,hsusb-otg-mode = <1>;
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qcom,hsusb-otg-otg-control = <1>;
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qcom,hsusb-otg-disable-reset;
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qcom,hsusb-otg-pnoc-errata-fix;
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qcom,hsusb-otg-default-mode = <2>;
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qcom,hsusb-otg-phy-init-seq = <0x01 0x90 0xffffffff>;
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qcom,hsusb-otg-power-budget = <500>;
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qcom,hsusb-otg-pclk-src-name = "dfab_usb_clk";
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qcom,hsusb-otg-lpm-on-dev-suspend;
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qcom,hsusb-otg-clk-always-on-workaround;
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hsusb_vdd_dig-supply = <&pm8226_s1_corner>;
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HSUSB_1p8-supply = <&pm8226_l10>;
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HSUSB_3p3-supply = <&pm8226_l20>;
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qcom,vdd-voltage-level = <1 5 7>;
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qcom,dp-manual-pullup;
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qcom,hsusb-otg-dpsehv-int = <49>;
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qcom,hsusb-otg-dmsehv-int = <58>;
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qcom,msm_bus,name = "usb2";
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qcom,msm_bus,num_cases = <2>;
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qcom,msm_bus,active_only = <0>;
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qcom,msm_bus,num_paths = <1>;
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qcom,msm_bus,vectors =
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<87 512 0 0>,
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<87 512 60000000 960000000>;
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qcom,hsusb-otg-vddmin-gpio = <&pm8019_mpps 6 0>;
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};
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MSM HSUSB EHCI controller
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Required properties :
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- compatible : should be "qcom,ehci-host"
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- reg : offset and length of the register set in the memory map
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- interrupts: IRQ lines used by this controller
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- interrupt-names : Required interrupt resource entries are:
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HSUSB EHCI expects "core_irq" and optionally "async_irq".
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- <supply-name>-supply: handle to the regulator device tree node
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Required "supply-name" is "HSUSB_VDDCX" "HSUSB_1p8-supply" "HSUSB_3p3-supply".
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- qcom,usb2-power-budget: maximum vbus power (in mA) that can be provided.
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Optional properties :
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- qcom,usb2-enable-hsphy2: If present, select second PHY for USB operation.
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Example MSM HSUSB EHCI controller device node :
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ehci: qcom,ehci-host@f9a55000 {
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compatible = "qcom,ehci-host";
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reg = <0xf9a55000 0x400>;
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interrupts = <0 134 0>, <0 140 0>;
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interrupt-names = "core_irq", "async_irq";
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HSUSB_VDDCX-supply = <&pm8841_s2>;
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HSUSB_1p8-supply = <&pm8941_l6>;
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HSUSB_3p3-supply = <&pm8941_l24>;
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qcom,usb2-enable-hsphy2;
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qcom,usb2-power-budget = <500>;
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};
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ANDROID USB:
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Required properties:
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- compatible: should be "qcom,android-usb"
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Optional properties :
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- reg : offset and length of memory region that is used by device to
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update USB PID and serial numbers used by bootloader in DLOAD mode.
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- qcom,android-usb-swfi-latency : value to be used by device to vote
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for DMA latency in microsecs.
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- qcom,android-usb-cdrom : if this property is present then device creates
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a new LUN as CD-ROM
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Example Android USB device node :
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android_usb@fc42b0c8 {
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compatible = "qcom,android-usb";
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reg = <0xfc42b0c8 0xc8>;
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qcom,android-usb-swfi-latency = <1>;
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};
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BAM:
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Required properties:
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- compatible: should be "qcom,usb-bam-msm"
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- reg : pairs of physical base addresses and region sizes
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of all the memory mapped BAM devices present
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- reg-names : Register region name(s), in 1-1 correspondence with the
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registers in 'reg'. This list should contain at least as many names
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as the number of unique values given in both 'usb-active-bam' and
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all the subnodes' 'usb-bam-type' properties.
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If SSUSB_BAM is used, "ssusb" should be present.
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If HSUSB_BAM is used, "hsusb" should be present.
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If HSIC_BAM is used, "hsic" should be present.
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If a QSCRATCH RAM1 register is designated for providing USB3
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private memory to use as a BAM FIFO, specify "qscratch_ram1_reg".
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- interrupts: IRQ lines for BAM devices
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- interrupt-names: BAM interrupt name(s), in 1-1 correspondence with
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'interrupts' above.
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If SSUSB_BAM is used, "ssusb" should be present.
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If HSUSB_BAM is used, "hsusb" should be present.
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If HSIC_BAM is used, "hsic" should be present.
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- qcom,usb-bam-num-pipes: max number of pipes that can be used
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Optional properties:
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- qcom,usb-bam-fifo-baseaddr: base address for bam pipe's data and descriptor
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fifos. This can be on chip memory (ocimem) or usb private memory. This
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property is required if sub-node's mem-type is ocimem or usb private mem.
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A number of USB BAM pipe parameters are represented as sub-nodes:
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Subnode Required:
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- label: a string describing uniquely the usb bam pipe. The string can be
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constracted as follows: <core>-<peer>-<direction>-<pipe num>.
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core options: hsusb, ssusb/dwc3, hsic
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peer options: qdss, ipa, a2
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direction options: in (from peer to usb), out (from usb to peer)
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pipe num options: 0..127
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- qcom,usb-bam-mem-type: Type of memory used by this PIPE. Can be one of
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0 - Uses SPS's dedicated pipe memory
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1 - USB's private memory residing @ 'qcom,usb-bam-fifo-baseaddr'
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2 - System RAM allocated by driver
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3 - OCI memory residing @ 'qcom,usb-bam-fifo-baseaddr'
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- qcom,bam-type: BAM type can be one of
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0 - SSUSB_BAM
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1 - HSUSB_BAM
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2 - HSIC_BAM
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- qcom,dir: pipe direction
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0 - from usb (out)
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1 - to usb (in)
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- qcom,pipe-num: pipe number
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- qcom,peer-bam: peer BAM can be one of
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0 - A2_P_BAM
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1 - QDSS_P_BAM
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2 - IPA_P_BAM
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- qcom,data-fifo-size: data fifo size
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- qcom,descriptor-fifo-size: descriptor fifo size
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Optional Properties for Subnode:
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- qcom,reset-bam-on-connect: If present then BAM is RESET before connecting
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pipe. This may be required if BAM peripheral is also reset before connect.
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- qcom,dst-bam-physical-address: destination BAM physical address
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- qcom,dst-bam-pipe-index: destination BAM pipe index
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- qcom,src-bam-physical-address: source BAM physical address
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- qcom,src-bam-pipe-index: source BAM pipe index
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- qcom,data-fifo-offset: data fifo offset address
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- qcom,descriptor-fifo-offset: descriptor fifo offset address
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Optional properties :
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- qcom,ignore-core-reset-ack: If present then BAM ignores ACK from USB core
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while performing PIPE RESET
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- qcom,disable-clk-gating: If present then disable BAM clock gating.
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Example USB BAM controller device node:
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qcom,usbbam@f9a44000 {
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compatible = "qcom,usb-bam-msm";
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reg = <0xf9a44000 0x11000>;
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reg-names = "hsusb";
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interrupts = <0 135 0>;
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interrupt-names = "hsusb";
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qcom,usb-bam-num-pipes = <16>;
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qcom,ignore-core-reset-ack;
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qcom,disable-clk-gating;
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qcom,pipe0 {
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label = "hsusb-ipa-out-0";
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qcom,usb-bam-mem-type = <0>;
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qcom,bam-type = <1>;
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qcom,dir = <0>;
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qcom,pipe-num = <0>;
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qcom,peer-bam = <2>;
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qcom,src-bam-physical-address = <0xf9a44000>;
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qcom,src-bam-pipe-index = <1>;
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qcom,data-fifo-offset = <0x2200>;
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qcom,data-fifo-size = <0x1e00>;
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qcom,descriptor-fifo-offset = <0x2100>;
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qcom,descriptor-fifo-size = <0x100>;
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};
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qcom,pipe1 {
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label = "hsusb-ipa-in-0";
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qcom,usb-bam-mem-type = <0>;
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qcom,bam-type = <1>;
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qcom,dir = <1>;
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qcom,pipe-num = <0>;
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qcom,peer-bam = <2>;
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qcom,dst-bam-physical-address = <0xf9a44000>;
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qcom,dst-bam-pipe-index = <0>;
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qcom,data-fifo-offset = <0x300>;
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qcom,data-fifo-size = <0x1e00>;
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qcom,descriptor-fifo-offset = <0>;
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qcom,descriptor-fifo-size = <0x300>;
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};
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};
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