From: Cyrille Pitchen <cyrille.pitchen@atmel.com>
To: <nicolas.ferre@atmel.com>, <boris.brezillon@free-electrons.com>,
<alexandre.belloni@free-electrons.com>, <sameo@linux.intel.com>,
<lee.jones@linaro.org>
Cc: <linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <robh+dt@kernel.org>,
<pawel.moll@arm.com>, <mark.rutland@arm.com>,
<ijc+devicetree@hellion.org.uk>, <galak@codeaurora.org>,
<devicetree@vger.kernel.org>,
Cyrille Pitchen <cyrille.pitchen@atmel.com>
Subject: [PATCH v2 1/2] mfd: devicetree: add bindings for Atmel Flexcom
Date: Thu, 18 Jun 2015 15:05:09 +0200 [thread overview]
Message-ID: <fa4a9f8193da4e303786b1b4b7deffbdd4d31e16.1434632230.git.cyrille.pitchen@atmel.com> (raw)
In-Reply-To: <cover.1434632230.git.cyrille.pitchen@atmel.com>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
---
.../devicetree/bindings/mfd/atmel-flexcom.txt | 58 ++++++++++++++++++++++
1 file changed, 58 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/atmel-flexcom.txt
diff --git a/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt b/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt
new file mode 100644
index 0000000..38f0e43
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt
@@ -0,0 +1,58 @@
+* Device tree bindings for Atmel Flexcom (Flexible Serial Communication Unit)
+
+The Atmel Flexcom is just a wrapper which embeds a SPI controller, an I2C
+controller and an USART. Only one function can be used at a time and is chosen
+at boot time according to the device tree.
+
+Required properties:
+- compatible: "atmel,sama5d2-flexcom"
+- reg: shall be the offset/length value for Flexcom dedicated I/O registers
+ (without USART, TWI or SPI registers).
+- clocks: shall be the Flexcom peripheral clock from PMC.
+- #address-cells: should be <1>
+- #size-cells: should be <1>
+- ranges: one range for the full I/O register region (including USART, TWI and
+ SPI registers)
+- atmel,flexcom-mode: shall be a string among { "spi", "usart", "i2c", "twi" }.
+ "i2c" and "twi" are synonymous.
+
+Required child:
+a child device of type matching the "atmel,flexcom-mode" property.
+The reg property of this child should be:
+- <0x200 0x200> for USART
+- <0x400 0x200> for SPI
+- <0x600 0x200> for I2C
+The phandle provided by the clocks property of the child is the same as one for
+the Flexcom parent.
+Other properties remain unchanged. See documentation of the respective device.
+
+Example:
+
+flx0: flexcom@f8034000 {
+ compatible = "atmel,sama5d2-flexcom";
+ reg = <0xf8034000 0x200>;
+ clocks = <&flx0_clk>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0xf8034000 0x800>;
+ atmel,flexcom-mode = "spi";
+
+ spi@f8034400 {
+ compatible = "atmel,at91rm9200-spi";
+ reg = <0x400 0x200>;
+ interrupts = <19 IRQ_TYPE_LEVEL_HIGH 7>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flx0_ioset1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&flx0_clk>;
+ clock-names = "spi_clk";
+ atmel,fifo-size = <32>;
+
+ mtd_dataflash@0 {
+ compatible = "atmel,at25f512b";
+ reg = <0>;
+ spi-max-frequency = <20000000>;
+ };
+ };
+};
--
1.8.2.2
WARNING: multiple messages have this Message-ID (diff)
From: Cyrille Pitchen <cyrille.pitchen@atmel.com>
To: nicolas.ferre@atmel.com, boris.brezillon@free-electrons.com,
alexandre.belloni@free-electrons.com, sameo@linux.intel.com,
lee.jones@linaro.org
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, robh+dt@kernel.org,
pawel.moll@arm.com, mark.rutland@arm.com,
ijc+devicetree@hellion.org.uk, galak@codeaurora.org,
devicetree@vger.kernel.org,
Cyrille Pitchen <cyrille.pitchen@atmel.com>
Subject: [PATCH v2 1/2] mfd: devicetree: add bindings for Atmel Flexcom
Date: Thu, 18 Jun 2015 15:05:09 +0200 [thread overview]
Message-ID: <fa4a9f8193da4e303786b1b4b7deffbdd4d31e16.1434632230.git.cyrille.pitchen@atmel.com> (raw)
In-Reply-To: <cover.1434632230.git.cyrille.pitchen@atmel.com>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
---
.../devicetree/bindings/mfd/atmel-flexcom.txt | 58 ++++++++++++++++++++++
1 file changed, 58 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/atmel-flexcom.txt
diff --git a/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt b/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt
new file mode 100644
index 0000000..38f0e43
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt
@@ -0,0 +1,58 @@
+* Device tree bindings for Atmel Flexcom (Flexible Serial Communication Unit)
+
+The Atmel Flexcom is just a wrapper which embeds a SPI controller, an I2C
+controller and an USART. Only one function can be used at a time and is chosen
+at boot time according to the device tree.
+
+Required properties:
+- compatible: "atmel,sama5d2-flexcom"
+- reg: shall be the offset/length value for Flexcom dedicated I/O registers
+ (without USART, TWI or SPI registers).
+- clocks: shall be the Flexcom peripheral clock from PMC.
+- #address-cells: should be <1>
+- #size-cells: should be <1>
+- ranges: one range for the full I/O register region (including USART, TWI and
+ SPI registers)
+- atmel,flexcom-mode: shall be a string among { "spi", "usart", "i2c", "twi" }.
+ "i2c" and "twi" are synonymous.
+
+Required child:
+a child device of type matching the "atmel,flexcom-mode" property.
+The reg property of this child should be:
+- <0x200 0x200> for USART
+- <0x400 0x200> for SPI
+- <0x600 0x200> for I2C
+The phandle provided by the clocks property of the child is the same as one for
+the Flexcom parent.
+Other properties remain unchanged. See documentation of the respective device.
+
+Example:
+
+flx0: flexcom@f8034000 {
+ compatible = "atmel,sama5d2-flexcom";
+ reg = <0xf8034000 0x200>;
+ clocks = <&flx0_clk>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0xf8034000 0x800>;
+ atmel,flexcom-mode = "spi";
+
+ spi@f8034400 {
+ compatible = "atmel,at91rm9200-spi";
+ reg = <0x400 0x200>;
+ interrupts = <19 IRQ_TYPE_LEVEL_HIGH 7>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flx0_ioset1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&flx0_clk>;
+ clock-names = "spi_clk";
+ atmel,fifo-size = <32>;
+
+ mtd_dataflash@0 {
+ compatible = "atmel,at25f512b";
+ reg = <0>;
+ spi-max-frequency = <20000000>;
+ };
+ };
+};
--
1.8.2.2
WARNING: multiple messages have this Message-ID (diff)
From: cyrille.pitchen@atmel.com (Cyrille Pitchen)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 1/2] mfd: devicetree: add bindings for Atmel Flexcom
Date: Thu, 18 Jun 2015 15:05:09 +0200 [thread overview]
Message-ID: <fa4a9f8193da4e303786b1b4b7deffbdd4d31e16.1434632230.git.cyrille.pitchen@atmel.com> (raw)
In-Reply-To: <cover.1434632230.git.cyrille.pitchen@atmel.com>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
---
.../devicetree/bindings/mfd/atmel-flexcom.txt | 58 ++++++++++++++++++++++
1 file changed, 58 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/atmel-flexcom.txt
diff --git a/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt b/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt
new file mode 100644
index 0000000..38f0e43
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt
@@ -0,0 +1,58 @@
+* Device tree bindings for Atmel Flexcom (Flexible Serial Communication Unit)
+
+The Atmel Flexcom is just a wrapper which embeds a SPI controller, an I2C
+controller and an USART. Only one function can be used at a time and is chosen
+at boot time according to the device tree.
+
+Required properties:
+- compatible: "atmel,sama5d2-flexcom"
+- reg: shall be the offset/length value for Flexcom dedicated I/O registers
+ (without USART, TWI or SPI registers).
+- clocks: shall be the Flexcom peripheral clock from PMC.
+- #address-cells: should be <1>
+- #size-cells: should be <1>
+- ranges: one range for the full I/O register region (including USART, TWI and
+ SPI registers)
+- atmel,flexcom-mode: shall be a string among { "spi", "usart", "i2c", "twi" }.
+ "i2c" and "twi" are synonymous.
+
+Required child:
+a child device of type matching the "atmel,flexcom-mode" property.
+The reg property of this child should be:
+- <0x200 0x200> for USART
+- <0x400 0x200> for SPI
+- <0x600 0x200> for I2C
+The phandle provided by the clocks property of the child is the same as one for
+the Flexcom parent.
+Other properties remain unchanged. See documentation of the respective device.
+
+Example:
+
+flx0: flexcom at f8034000 {
+ compatible = "atmel,sama5d2-flexcom";
+ reg = <0xf8034000 0x200>;
+ clocks = <&flx0_clk>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0xf8034000 0x800>;
+ atmel,flexcom-mode = "spi";
+
+ spi at f8034400 {
+ compatible = "atmel,at91rm9200-spi";
+ reg = <0x400 0x200>;
+ interrupts = <19 IRQ_TYPE_LEVEL_HIGH 7>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flx0_ioset1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&flx0_clk>;
+ clock-names = "spi_clk";
+ atmel,fifo-size = <32>;
+
+ mtd_dataflash at 0 {
+ compatible = "atmel,at25f512b";
+ reg = <0>;
+ spi-max-frequency = <20000000>;
+ };
+ };
+};
--
1.8.2.2
next prev parent reply other threads:[~2015-06-18 13:05 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-18 13:05 [PATCH v2 0/2] mfd: flexcom: add a driver for Flexcom Cyrille Pitchen
2015-06-18 13:05 ` Cyrille Pitchen
2015-06-18 13:05 ` Cyrille Pitchen
2015-06-18 13:05 ` Cyrille Pitchen [this message]
2015-06-18 13:05 ` [PATCH v2 1/2] mfd: devicetree: add bindings for Atmel Flexcom Cyrille Pitchen
2015-06-18 13:05 ` Cyrille Pitchen
2015-06-18 13:05 ` [PATCH v2 2/2] mfd: flexcom: add a driver for Atmel Flexible Serial Communication Unit Cyrille Pitchen
2015-06-18 13:05 ` Cyrille Pitchen
2015-06-18 13:05 ` Cyrille Pitchen
2015-06-19 7:34 ` Paul Bolle
2015-06-19 7:34 ` Paul Bolle
2015-06-19 7:34 ` Paul Bolle
2015-06-18 13:09 ` [PATCH v2 0/2] mfd: flexcom: add a driver for Flexcom Boris Brezillon
2015-06-18 13:09 ` Boris Brezillon
2015-06-18 13:09 ` Boris Brezillon
2015-06-18 14:52 ` Alexandre Belloni
2015-06-18 14:52 ` Alexandre Belloni
2015-06-18 14:52 ` Alexandre Belloni
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