Add a binding document for the XUSB host complex on NVIDIA Tegra124
and later SoCs. The XUSB host complex includes a mailbox for
communication with the XUSB micro-controller and an xHCI host-controller.
Signed-off-by: Andrew Bresticker <abrestic@xxxxxxxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Pawel Moll <pawel.moll@xxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Ian Campbell <ijc+devicetree@xxxxxxxxxxxxxx>
Cc: Kumar Gala <galak@xxxxxxxxxxxxxx>
Cc: Samuel Ortiz <sameo@xxxxxxxxxxxxxxx>
Cc: Lee Jones <lee.jones@xxxxxxxxxx>
---
New for v7.
---
.../bindings/mfd/nvidia,tegra124-xusb.txt | 46 ++++++++++++++++++++++
1 file changed, 46 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/nvidia,tegra124-xusb.txt
diff --git a/Documentation/devicetree/bindings/mfd/nvidia,tegra124-xusb.txt b/Documentation/devicetree/bindings/mfd/nvidia,tegra124-xusb.txt
new file mode 100644
index 0000000..6a46680
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/nvidia,tegra124-xusb.txt
@@ -0,0 +1,46 @@
+NVIDIA Tegra XUSB host copmlex
+==============================
+
+The XUSB host complex on Tegra124 and later SoCs contains an xHCI host
+controller and a mailbox for communication with the XUSB micro-controller.
+
+Required properties:
+--------------------
+ - compatible: For Tegra124, must contain "nvidia,tegra124-xusb".
+ Otherwise, must contain '"nvidia,<chip>-xusb", "nvidia,tegra124-xusb"'
+ where <chip> is tegra132.
+ - reg: Must contain register base and length for each register set listed
+ in reg-names.
+ - reg-names: Must include the following entries:
+ - xhci
+ - fpci
+ - ipfs
+ - interrupts: Must contain an interrupt for each entry in interrupt-names.
+ - interrupt-names: Must include the following entries:
+ - host
+ - smi
+ - pme
+
+Example:
+--------
+ usb@0,70090000 {
+ compatible = "nvidia,tegra124-xusb";
+ reg = <0x0 0x70090000 0x0 0x8000>,
+ <0x0 0x70098000 0x0 0x1000>,
+ <0x0 0x70099000 0x0 0x1000>;
+ reg-names = "xhci", "fpci", "ipfs";
+ interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 40 IRQ_TYPE_LEVEL_HGIH>,
+ <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "host", "smi", "pme";
+
+ usb-host {
+ compatible = "nvidia,tegra124-xhci";
+ ...
+ };
+
+ mailbox {
+ compatible = "nvidia,tegra124-xusb-mbox";
+ ...
+ };
+ };
--
2.2.0.rc0.207.ga3a616c
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