Hi Soren
On Thu, Apr 3, 2014 at 11:20 PM, Sören Brinkmann
<soren.brinkmann@xxxxxxxxxx> wrote:
> Hi Punnaiah,
>
> On Thu, 2014-04-03 at 10:33PM +0530, Punnaiah Choudary Kalluri wrote:
>> Add bindings documentation for Zynq Quad SPI driver.
>>
>> Signed-off-by: Punnaiah Choudary Kalluri <punnaia@xxxxxxxxxx>
>> ---
>> .../devicetree/bindings/spi/spi-zynq-qspi.txt | 26 ++++++++++++++++++++
>> 1 file changed, 26 insertions(+)
>> create mode 100644 Documentation/devicetree/bindings/spi/spi-zynq-qspi.txt
>>
>> diff --git a/Documentation/devicetree/bindings/spi/spi-zynq-qspi.txt b/Documentation/devicetree/bindings/spi/spi-zynq-qspi.txt
>> new file mode 100644
>> index 0000000..88e00f8
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/spi/spi-zynq-qspi.txt
>> @@ -0,0 +1,26 @@
>> +Xilinx Zynq QSPI controller Device Tree Bindings
>> +-------------------------------------------------
>> +
>> +Required properties:
>> +- compatible : Should be "xlnx,zynq-qspi-1.0".
>> +- reg : Physical base address and size of QSPI registers map.
>> +- interrupts : Property with a value describing the interrupt
>> + number.
>> +- interrupt-parent : Must be core interrupt controller
>> +- clock-names : List of input clock names - "ref_clk", "aper_clk"
>> + (See clock bindings for details).
>> +- clocks : Clock phandles (see clock bindings for details).
>> +
>> +Optional properties:
>> +- num-cs : Number of chip selects used.
>> +
>> +Example:
>> + qspi@e000d000 {
>> + compatible = "xlnx,zynq-qspi-1.0";
>> + clock-names = "ref_clk", "aper_clk";
>
> These seem to be the SOC names of the clocks. Doesn't have the IP its
> own naming for these clock inputs?
>
The IP design spec uses the name ref_clk.
There is no particular clock name used for for APB clock.
So I think aper_clk is a valid name to use.
Regards,
Harini
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