From: Yogesh Gaur <yogeshnarayan.gaur@nxp.com> To: linux-mtd@lists.infradead.org, boris.brezillon@bootlin.com, marek.vasut@gmail.com, linux-spi@vger.kernel.org, devicetree@vger.kernel.org Cc: robh@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org, linux-arm-kernel@lists.infradead.org, computersforpeace@gmail.com, frieder.schrempf@exceet.de, linux-kernel@vger.kernel.org, Yogesh Gaur <yogeshnarayan.gaur@nxp.com> Subject: [PATCH v3 2/5] dt-bindings: spi: add binding file for NXP FlexSPI controller Date: Fri, 21 Sep 2018 15:52:00 +0530 [thread overview] Message-ID: <1537525323-20730-3-git-send-email-yogeshnarayan.gaur@nxp.com> (raw) In-Reply-To: <1537525323-20730-1-git-send-email-yogeshnarayan.gaur@nxp.com> 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 { + 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>; + .... + }; +}; -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: yogeshnarayan.gaur@nxp.com (Yogesh Gaur) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 2/5] dt-bindings: spi: add binding file for NXP FlexSPI controller Date: Fri, 21 Sep 2018 15:52:00 +0530 [thread overview] Message-ID: <1537525323-20730-3-git-send-email-yogeshnarayan.gaur@nxp.com> (raw) In-Reply-To: <1537525323-20730-1-git-send-email-yogeshnarayan.gaur@nxp.com> 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 at 0: flexspi at 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 at 0: mt35xu512aba at 0 { + reg = <0>; + .... + }; + + flash at 1: mt35xu512aba at 1 { + reg = <1>; + .... + }; +}; -- 2.7.4
next prev parent reply other threads:[~2018-09-21 10:24 UTC|newest] Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-09-21 10:21 [PATCH v3 0/5] spi: spi-mem: Add driver for NXP FlexSPI controller Yogesh Gaur 2018-09-21 10:21 ` Yogesh Gaur 2018-09-21 10:21 ` [PATCH v3 1/5] " Yogesh Gaur 2018-09-21 10:21 ` Yogesh Gaur 2018-09-29 15:40 ` Boris Brezillon 2018-09-29 15:40 ` Boris Brezillon 2018-10-01 6:18 ` Frieder Schrempf 2018-10-01 6:18 ` Frieder Schrempf 2018-10-01 6:18 ` Frieder Schrempf 2018-10-01 9:02 ` Yogesh Narayan Gaur 2018-10-01 9:02 ` Yogesh Narayan Gaur 2018-10-01 9:02 ` Yogesh Narayan Gaur 2018-10-01 9:09 ` Boris Brezillon 2018-10-01 9:09 ` Boris Brezillon 2018-10-01 9:09 ` Boris Brezillon 2018-10-08 11:21 ` Yogesh Narayan Gaur 2018-10-08 11:21 ` Yogesh Narayan Gaur 2018-10-08 11:21 ` Yogesh Narayan Gaur 2018-10-08 12:32 ` Boris Brezillon 2018-10-08 12:32 ` Boris Brezillon 2018-10-08 12:32 ` Boris Brezillon 2018-09-21 10:22 ` Yogesh Gaur [this message] 2018-09-21 10:22 ` [PATCH v3 2/5] dt-bindings: spi: add binding file " Yogesh Gaur 2018-09-27 19:10 ` Rob Herring 2018-09-27 19:10 ` Rob Herring 2018-09-21 10:22 ` [PATCH v3 3/5] arm64: dts: lx2160a: add FlexSPI node property Yogesh Gaur 2018-09-21 10:22 ` Yogesh Gaur 2018-09-21 10:22 ` [PATCH v3 4/5] arm64: defconfig: enable NXP FlexSPI driver Yogesh Gaur 2018-09-21 10:22 ` Yogesh Gaur 2018-09-21 10:22 ` [PATCH v3 5/5] MAINTAINERS: add maintainers for the " Yogesh Gaur 2018-09-21 10:22 ` Yogesh Gaur
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