On 2016/12/5 11:24, Marek Vasut wrote:
> On 12/05/2016 03:56 AM, Shawn Lin wrote:
>> Add binding document for the Rockchip serial flash controller.
>>
>> Signed-off-by: Shawn Lin <shawn.lin at rock-chips.com>
>>
>> Acked-by: Rob Herring <robh at kernel.org>
>> ---
>>
>> Changes in v3:
>> - rename sfc-no-dma to sfc-no-DMA
>>
>> Changes in v2: None
>>
>> .../devicetree/bindings/mtd/rockchip-sfc.txt | 31 ++++++++++++++++++++++
>> 1 file changed, 31 insertions(+)
>> create mode 100644 Documentation/devicetree/bindings/mtd/rockchip-sfc.txt
>>
>> diff --git a/Documentation/devicetree/bindings/mtd/rockchip-sfc.txt b/Documentation/devicetree/bindings/mtd/rockchip-sfc.txt
>> new file mode 100644
>> index 0000000..c6b4f58
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/mtd/rockchip-sfc.txt
>> @@ -0,0 +1,31 @@
>> +Rockchip Serial Flash Controller
>> +
>> +Required properties:
>> +- compatible : Should be
>> + "rockchip,rk1108-sfc", "rockchip,sfc" for ROCKCHIP RK1108.
>> +- address-cells : Should be 1.
>> +- size-cells : Should be 0.
>> +- clocks: Must contain two entries for each entry in clock-names.
>> +- clock-names: Shall be "sfc" for the transfer-clock, and "hsfc" for
>> + the peripheral clock.
>> +- interrupts : Should contain the interrupt for the device.
>> +- reg: Physical base address of the controller and length of memory mapped.
>> +
>> +Optional properties:
>
> Uhhh, I apologize for the miscommunication.
>
>> +- rockchip,sfc-no-DMA: Indicate the controller doesn't support dma transfer.
> I didn't mean this ^^^ DMA, that should be lowercase. I meant ^^^
> this one. The property should be lowercase, the description
> should be uppercase.
Ah, got it.
>
>> +
>> +Example:
>> +nor_flash: sfc at 301c0000 {
>> + compatible = "rockchip,rk1108-sfc", "rockchip,sfc";
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> + clocks = <&cru SCLK_SFC>, <&cru HCLK_SFC>;
>> + clock-names = "sfc", "hsfc";
>> + interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
>> + reg = <0x301c0000 0x1000>;
>> + spi-nor at 0 {
>> + compatible = "jedec,spi-nor";
>> + spi-max-frequency = <12000000>;
>> + reg = <0>;
>> + };
>> +};
>>
>
>
--
Best Regards
Shawn Lin
