From mboxrd@z Thu Jan 1 00:00:00 1970 From: boris.brezillon@free-electrons.com (Boris Brezillon) Date: Wed, 3 Dec 2014 21:44:06 +0100 Subject: [PATCH v5 02/11] mfd: syscon: Add Atmel Matrix bus DT binding documentation In-Reply-To: <1417639455-17410-1-git-send-email-boris.brezillon@free-electrons.com> References: <1417639455-17410-1-git-send-email-boris.brezillon@free-electrons.com> Message-ID: <1417639455-17410-3-git-send-email-boris.brezillon@free-electrons.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org The Matrix registers are provided to configure internal bus behavior on at91 SoCs. Some registers might be accessed by several drivers (e.g. to configure external memory bus timings), hence we declare this register set as a syscon device. Signed-off-by: Boris Brezillon Acked-by: Lee Jones --- .../devicetree/bindings/mfd/atmel-matrix.txt | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/atmel-matrix.txt diff --git a/Documentation/devicetree/bindings/mfd/atmel-matrix.txt b/Documentation/devicetree/bindings/mfd/atmel-matrix.txt new file mode 100644 index 0000000..e3ef50c --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/atmel-matrix.txt @@ -0,0 +1,24 @@ +* Device tree bindings for Atmel Bus Matrix + +The Bus Matrix registers are used to configure Atmel SoCs internal bus +behavior (master/slave priorities, undefined burst length type, ...) + +Required properties: +- compatible: Should be one of the following + "atmel,at91sam9260-matrix", "syscon" + "atmel,at91sam9261-matrix", "syscon" + "atmel,at91sam9263-matrix", "syscon" + "atmel,at91sam9rl-matrix", "syscon" + "atmel,at91sam9g45-matrix", "syscon" + "atmel,at91sam9n12-matrix", "syscon" + "atmel,at91sam9x5-matrix", "syscon" + "atmel,sama5d3-matrix", "syscon" +- reg: Contains offset/length value of the Bus Matrix + memory region. + +Example: + +matrix: matrix at ffffec00 { + compatible = "atmel,sama5d3-matrix", "syscon"; + reg = <0xffffec00 0x200>; +}; -- 1.9.1