On Fri, Feb 05, 2016 at 06:34:36PM +0100, Petr Kulhavy wrote: > TI DA8xx MUSB driver equipped with DeviceTree support. > Tested with AM1808 board and USB2.0 (OTG) in host mode. > > Signed-off-by: Petr Kulhavy <petr@xxxxxxxxx> > --- > .../devicetree/bindings/usb/da8xx-usb.txt | 63 ++++++++ > drivers/usb/musb/da8xx.c | 162 +++++++++++++++++++++ > include/linux/platform_data/usb-davinci.h | 3 +- > 3 files changed, 227 insertions(+), 1 deletion(-) > create mode 100644 Documentation/devicetree/bindings/usb/da8xx-usb.txt > > diff --git a/Documentation/devicetree/bindings/usb/da8xx-usb.txt b/Documentation/devicetree/bindings/usb/da8xx-usb.txt > new file mode 100644 > index 0000000..69c0961 > --- /dev/null > +++ b/Documentation/devicetree/bindings/usb/da8xx-usb.txt > @@ -0,0 +1,63 @@ > +TI DA8xx MUSB > +~~~~~~~~~~~~~ > + > +Required properties: > +~~~~~~~~~~~~~~~~~~~~ > + - compatible : Should be "ti,da8xx-musb" > + > + - reg: offset and length of the usbss register sets > + > + - interrupts: USB interrupt number > + > + - interrupt-names: should be set to "mc" Kind of pointless with only one. > + - dr_mode: The USB operation mode. Should be one of "host", "peripheral" or "otg". > + > + - mentor,power : Specifies the maximum current in milli-ampers the controller can > + supply in host mode. The maximum configurable value is 510mA. > + > + - mentor,num-eps : Valid only in host mode. Specifies the number of target endpoints > + supported by the controller. For DA8xx it is "5". If DA8xx is the only thing you support, then why is this needed? > + - mentor,multipoint : Valid only in host mode. Enables addressing of USB hubs, > + which is normally something you want and therefore should be set to "1". > + If set to "0" only point-to-point communication is enabled, i.e. only a single > + device can be attached. Given 1 is a superset of 0, why ever use 0? > + - mentor,ram-bits : This 2-base logarithm value defines the RAM FIFO size of the controller. > + The FIFO size is calculated in 32-bit words. E.g. if your controller has 4kiB of RAM FIFO > + this value should be set to "10": 2^10 = 1024 words of 32-bits, i.e. 4096 bytes. > + For the DA8xx controller this value should be set to 10. Again, if fixed for the compatible string, then don't put into the DT. > + > + > +Optional properties: > + > + - ti,phy20-clkmux-cfg: Integer. Defines the USB 2.0 PHY reference clock source. > + Supported values: "0" for external pin, "1" for internal PLL. > + > + - ti,phy20-refclock-frequency : Integer. Defines the USB 2.0 PHY reference clock input > + frequency in Hz in case the clock is generated by the internal PLL. > + Supported values are 12MHz, 13MHz, 19.2MHz, 20MHz, 24MHz, 26MHz, 38.4MHz, 40MHz, 48MHz Add units suffix (-hz). -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
