From: Yogesh Narayan Gaur <yogeshnarayan.gaur@nxp.com>
To: "linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>,
"boris.brezillon@bootlin.com" <boris.brezillon@bootlin.com>,
"marek.vasut@gmail.com" <marek.vasut@gmail.com>,
"broonie@kernel.org" <broonie@kernel.org>,
"linux-spi@vger.kernel.org" <linux-spi@vger.kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>
Cc: "robh@kernel.org" <robh@kernel.org>,
"mark.rutland@arm.com" <mark.rutland@arm.com>,
"shawnguo@kernel.org" <shawnguo@kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"computersforpeace@gmail.com" <computersforpeace@gmail.com>,
"frieder.schrempf@exceet.de" <frieder.schrempf@exceet.de>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Yogesh Narayan Gaur <yogeshnarayan.gaur@nxp.com>
Subject: [PATCH RESEND v4 2/5] dt-bindings: spi: add binding file for NXP FlexSPI controller
Date: Tue, 23 Oct 2018 08:56:53 +0000 [thread overview]
Message-ID: <1540284888-32307-3-git-send-email-yogeshnarayan.gaur@nxp.com> (raw)
In-Reply-To: <1540284888-32307-1-git-send-email-yogeshnarayan.gaur@nxp.com>
Add binding file for NXP FlexSPI controller
Signed-off-by: Yogesh Gaur <yogeshnarayan.gaur@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
Changes for v4:
- Incorporated Rob review comments.
Changes for v3:
- Removed node property 'big-endian'.
Changes for v2:
- Incorporated Rob review comments.
.../devicetree/bindings/spi/spi-nxp-fspi.txt | 39 ++++++++++++++++++++++
1 file changed, 39 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..2cd67eb
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/spi-nxp-fspi.txt
@@ -0,0 +1,39 @@
+* 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
+
+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: spi@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";
+
+ mt35xu512aba0: flash@0 {
+ reg = <0>;
+ ....
+ };
+
+ mt35xu512aba1: flash@1 {
+ reg = <1>;
+ ....
+ };
+};
--
2.7.4
next prev parent reply other threads:[~2018-10-23 8:57 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-23 8:56 [PATCH RESEND v4 0/5] spi: spi-mem: Add driver for NXP FlexSPI controller Yogesh Narayan Gaur
2018-10-23 8:56 ` [PATCH RESEND v4 1/5] " Yogesh Narayan Gaur
2018-10-23 9:06 ` Boris Brezillon
2018-10-23 9:12 ` Yogesh Narayan Gaur
2018-11-07 16:21 ` Schrempf Frieder
2018-11-13 7:04 ` Yogesh Narayan Gaur
2018-11-13 7:26 ` Schrempf Frieder
2018-10-23 8:56 ` Yogesh Narayan Gaur [this message]
2018-10-23 8:57 ` [PATCH RESEND v4 3/5] arm64: dts: lx2160a: add FlexSPI node property Yogesh Narayan Gaur
2018-10-23 8:57 ` [PATCH RESEND v4 4/5] arm64: defconfig: enable NXP FlexSPI driver Yogesh Narayan Gaur
2018-10-23 8:57 ` [PATCH RESEND v4 5/5] MAINTAINERS: add maintainers for the " Yogesh Narayan Gaur
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