From: robh@kernel•org (Rob Herring)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 4/7] dt-bindings: spi: add binding file for NXP FlexSPI driver
Date: Mon, 3 Sep 2018 20:33:25 -0500 [thread overview]
Message-ID: <5b8e8a7b.1c69fb81.f713b.79ea@mx.google.com> (raw)
In-Reply-To: <1535711404-29528-5-git-send-email-yogeshnarayan.gaur@nxp.com>
On Fri, Aug 31, 2018 at 04:00:01PM +0530, Yogesh Gaur wrote:
> Add binding file for NXP FlexSPI driver.
Bindings are for h/w, not drivers.
>
> Signed-off-by: Yogesh Gaur <yogeshnarayan.gaur@nxp•com>
> ---
> .../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..9f07116
> --- /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: iconfiguration 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:
> +
> +fspi0: flexspi at 20c0000 {
spi at ...
> + 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";
> +
> + flash0: mt35xu512aba at 0 {
flash at 0
> + reg = <0>;
> + ....
> + };
> +
> + flash1: mt35xu512aba at 1 {
flash at 1
Make sure to fix the dts patch too.
> + reg = <1>;
> + ....
> + };
> +};
> --
> 2.7.4
>
next prev parent reply other threads:[~2018-09-04 1:33 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-31 10:29 [PATCH 0/7] spi: spi-mem: Add a driver for NXP FlexSPI controller Yogesh Gaur
2018-08-31 10:29 ` [PATCH 1/7] spi: add slave device size in spi_device struct Yogesh Gaur
2018-08-31 11:41 ` Geert Uytterhoeven
2018-08-31 11:58 ` Lothar Waßmann
2018-09-03 4:47 ` Yogesh Narayan Gaur
2018-09-03 8:36 ` Boris Brezillon
2018-08-31 10:29 ` [PATCH 2/7] spi: add flags for octal I/O data transfer Yogesh Gaur
2018-08-31 10:30 ` [PATCH 3/7] spi: spi-mem: Add a driver for NXP FlexSPI controller Yogesh Gaur
2018-09-04 14:58 ` Boris Brezillon
2018-09-05 10:07 ` Yogesh Narayan Gaur
2018-09-06 8:26 ` Frieder Schrempf
2018-09-06 11:35 ` Yogesh Narayan Gaur
2018-09-06 11:43 ` Boris Brezillon
2018-09-06 12:23 ` Yogesh Narayan Gaur
2018-08-31 10:30 ` [PATCH 4/7] dt-bindings: spi: add binding file for NXP FlexSPI driver Yogesh Gaur
2018-09-03 9:54 ` Prabhakar Kushwaha
2018-09-04 5:37 ` Yogesh Narayan Gaur
2018-09-04 12:46 ` Boris Brezillon
2018-09-06 7:08 ` Jagdish Gediya
2018-09-04 1:33 ` Rob Herring [this message]
2018-08-31 10:30 ` [PATCH 5/7] arm64: dts: lx2160a: add fspi node property Yogesh Gaur
2018-09-03 3:01 ` Shawn Guo
2018-08-31 10:30 ` [PATCH 6/7] arm64: defconfig: enable NXP FlexSPI driver Yogesh Gaur
2018-08-31 10:30 ` [PATCH 7/7] MAINTAINERS: add maintainers for the " Yogesh Gaur
2018-09-04 12:43 ` [PATCH 0/7] spi: spi-mem: Add a driver for NXP FlexSPI controller Boris Brezillon
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