On Thu, Jun 23, 2011 at 8:55 AM, Grant Likely <grant.likely@xxxxxxxxxxxx> wrote:
> On Thu, Jun 23, 2011 at 8:08 AM, Jamie Iles <jamie@xxxxxxxxxxxxx> wrote:
>> The of_serial bindings can be used to register a number of serial
>> devices. Document this binding with all of the others.
>>
>> Cc: Grant Likely <grant.likely@xxxxxxxxxxxx>
>> Cc: Arnd Bergmann <arnd@xxxxxxxx>
>> Signed-off-by: Jamie Iles <jamie@xxxxxxxxxxxxx>
>> ---
>> .../devicetree/bindings/tty/serial/of-serial.txt | 34 ++++++++++++++++++++
>> 1 files changed, 34 insertions(+), 0 deletions(-)
>> create mode 100644 Documentation/devicetree/bindings/tty/serial/of-serial.txt
>>
>> diff --git a/Documentation/devicetree/bindings/tty/serial/of-serial.txt b/Documentation/devicetree/bindings/tty/serial/of-serial.txt
>> new file mode 100644
>> index 0000000..b0c52c2
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/tty/serial/of-serial.txt
>> @@ -0,0 +1,34 @@
>> +* UART (Universal Asynchronous Receiver/Transmitter)
>> +
>> +Required properties:
>> +- compatible : one of:
>> + - "ns8250"
>> + - "ns16450"
>> + - "ns16550a"
>> + - "ns16550"
>> + - "ns16750"
>> + - "ns16850"
>> + - "nvidia,tegra250-uart"
>> + - "ibm,qpace-nwp-serial"
>> + - "serial" if the port type is unknown.
>> +- reg : offset and length of the register set for the device.
>> +- interrupts : should contain uart interrupt.
>> +- clock-frequency : the input clock frequency for the UART.
>> +
>> +Optional properties:
>> +- current-speed : the current active speed of the UART.
>> +- reg-offset : offset to apply to the mapbase from the start of the registers.
>> +- reg-shift : quantity to shift the register offsets by.
>> +- used-by-rtas : set to indicate that the port is in use by the firmware and
>> + should not be registered.
>> +
>> +Example:
>> +
>> + uart@80230000 {
>> + compatible = "ns8250";
>> + device-type = "serial";
>
> Drop device-type. Otherwise looks good.
Although the used-by-rtas description should probably mention
specifically that it is used by OpenFirmware RTAS.
g.
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