Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / powerpc / fsl / cpm_qe / qe / usb.txt

diff --git a/kernel/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/usb.txt b/kernel/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/usb.txt
new file mode 100644 (file)
index 0000000..9ccd5f3
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/usb.txt
@@ -0,0 +1,37 @@
+Freescale QUICC Engine USB Controller
+
+Required properties:
+- compatible : should be "fsl,<chip>-qe-usb", "fsl,mpc8323-qe-usb".
+- reg : the first two cells should contain usb registers location and
+  length, the next two two cells should contain PRAM location and
+  length.
+- interrupts : should contain USB interrupt.
+- interrupt-parent : interrupt source phandle.
+- fsl,fullspeed-clock : specifies the full speed USB clock source:
+  "none": clock source is disabled
+  "brg1" through "brg16": clock source is BRG1-BRG16, respectively
+  "clk1" through "clk24": clock source is CLK1-CLK24, respectively
+- fsl,lowspeed-clock : specifies the low speed USB clock source:
+  "none": clock source is disabled
+  "brg1" through "brg16": clock source is BRG1-BRG16, respectively
+  "clk1" through "clk24": clock source is CLK1-CLK24, respectively
+- hub-power-budget : USB power budget for the root hub, in mA.
+- gpios : should specify GPIOs in this order: USBOE, USBTP, USBTN, USBRP,
+  USBRN, SPEED (optional), and POWER (optional).
+
+Example:
+
+usb@6c0 {
+       compatible = "fsl,mpc8360-qe-usb", "fsl,mpc8323-qe-usb";
+       reg = <0x6c0 0x40 0x8b00 0x100>;
+       interrupts = <11>;
+       interrupt-parent = <&qeic>;
+       fsl,fullspeed-clock = "clk21";
+       gpios = <&qe_pio_b  2 0 /* USBOE */
+                &qe_pio_b  3 0 /* USBTP */
+                &qe_pio_b  8 0 /* USBTN */
+                &qe_pio_b  9 0 /* USBRP */
+                &qe_pio_b 11 0 /* USBRN */
+                &qe_pio_e 20 0 /* SPEED */
+                &qe_pio_e 21 0 /* POWER */>;
+};