| Message ID | 1537525323-20730-3-git-send-email-yogeshnarayan.gaur@nxp.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | spi: spi-mem: Add driver for NXP FlexSPI controller | expand |
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@nxp.com> > --- > 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 >
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 { + 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 { + reg = <0>; + .... + }; + + flash@1: mt35xu512aba@1 { + reg = <1>; + .... + }; +};
Add binding file for NXP FlexSPI controller Signed-off-by: Yogesh Gaur <yogeshnarayan.gaur@nxp.com> --- 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