On Fri, Sep 21, 2018 at 03:52:00PM +0530, Yogesh Gaur wrote:
> Add binding file for NXP FlexSPI controller
>
> Signed-off-by: Yogesh Gaur <yogeshnarayan.gaur@xxxxxxx>
> ---
> Changes for v3:
> - None
> Changes for v2:
> - Incorporated Rob review comments.
>
> .../devicetree/bindings/spi/spi-nxp-fspi.txt | 42 ++++++++++++++++++++++
> 1 file changed, 42 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/spi/spi-nxp-fspi.txt
>
> diff --git a/Documentation/devicetree/bindings/spi/spi-nxp-fspi.txt b/Documentation/devicetree/bindings/spi/spi-nxp-fspi.txt
> new file mode 100644
> index 0000000..94b5203
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/spi/spi-nxp-fspi.txt
> @@ -0,0 +1,42 @@
> +* NXP Flex Serial Peripheral Interface (FSPI)
> +
> +Required properties:
> + - compatible : Should be "nxp,lx2160a-fspi"
> + - reg : First contains the register location and length,
> + Second contains the memory mapping address and length
> + - reg-names : Should contain the resource reg names:
> + - fspi_base: configuration register address space
> + - fspi_mmap: memory mapped address space
> + - interrupts : Should contain the interrupt for the device
> +
> +Optional properties:
> + - big-endian : See common-properties.txt.
> +
> +Required SPI slave node properties:
> + - reg : There are two buses (A and B) with two chip selects each.
> + This encodes to which bus and CS the flash is connected:
> + - <0>: Bus A, CS 0
> + - <1>: Bus A, CS 1
> + - <2>: Bus B, CS 0
> + - <3>: Bus B, CS 1
> +
> +Example showing the usage of two SPI NOR slave devices on bus A:
> +
> +fspi@0: flexspi@20c0000 {
Use standard node names.
spi@...
> + compatible = "nxp,lx2160a-fspi";
> + reg = <0x0 0x20c0000 0x0 0x10000>, <0x0 0x20000000 0x0 0x10000000>;
> + reg-names = "fspi_base", "fspi_mmap";
> + interrupts = <0 25 0x4>; /* Level high type */
> + clocks = <&clockgen 4 3>, <&clockgen 4 3>;
> + clock-names = "fspi_en", "fspi";
> +
> + flash@0: mt35xu512aba@0 {
You've got the label and node name reversed. Drop the '@' in the label.
That should be reserved for node names.
> + reg = <0>;
> + ....
> + };
> +
> + flash@1: mt35xu512aba@1 {
> + reg = <1>;
> + ....
> + };
> +};
> --
> 2.7.4
>
