From mboxrd@z Thu Jan 1 00:00:00 1970 From: alexandre.belloni@free-electrons.com (Alexandre Belloni) Date: Wed, 14 Jan 2015 17:21:56 +0100 Subject: [PATCH 04/12] mfd: syscon: Add Atmel SMC binding doc In-Reply-To: <1421252524-24452-1-git-send-email-alexandre.belloni@free-electrons.com> References: <1421252524-24452-1-git-send-email-alexandre.belloni@free-electrons.com> Message-ID: <1421252524-24452-5-git-send-email-alexandre.belloni@free-electrons.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Boris Brezillon The SMC registers are used to configure Atmel EBI (External Bus Interface) to interface with standard memory devices (NAND, NOR, SRAM or specialized devices like FPGAs). Declare this memory region as a syscon, so that different drivers can configure the SMC interface (mostly timing configuration) according to their need. Signed-off-by: Boris Brezillon Acked-by: Lee Jones --- Documentation/devicetree/bindings/mfd/atmel-smc.txt | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/atmel-smc.txt diff --git a/Documentation/devicetree/bindings/mfd/atmel-smc.txt b/Documentation/devicetree/bindings/mfd/atmel-smc.txt new file mode 100644 index 000000000000..26eeed373934 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/atmel-smc.txt @@ -0,0 +1,19 @@ +* Device tree bindings for Atmel SMC (Static Memory Controller) + +The SMC registers are used to configure Atmel EBI (External Bus Interface) +to interface with standard memory devices (NAND, NOR, SRAM or specialized +devices like FPGAs). + +Required properties: +- compatible: Should be one of the following + "atmel,at91sam9260-smc", "syscon" + "atmel,sama5d3-smc", "syscon" +- reg: Contains offset/length value of the SMC memory + region. + +Example: + +smc: smc at ffffc000 { + compatible = "atmel,sama5d3-smc", "syscon"; + reg = <0xffffc000 0x1000>; +}; -- 2.1.0