From mboxrd@z Thu Jan 1 00:00:00 1970 From: boris.brezillon@free-electrons.com (Boris Brezillon) Date: Tue, 30 May 2017 10:32:46 +0200 Subject: [PATCH 1/5] dt-bindings: mtd: atmel-nand: Document the nfc-io bindings In-Reply-To: <1496133171-4787-1-git-send-email-boris.brezillon@free-electrons.com> References: <1496133171-4787-1-git-send-email-boris.brezillon@free-electrons.com> Message-ID: <1496133171-4787-2-git-send-email-boris.brezillon@free-electrons.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org SAMA5 SoCs embed an advanced NAND controller logic to automate READ/WRITE page accesses. This advanced logic is exposed through a separate I/O mem range and is thus represented in a different node with its own compatible. Document the bindings of this nfc-io block. Signed-off-by: Boris Brezillon --- Documentation/devicetree/bindings/mtd/atmel-nand.txt | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/Documentation/devicetree/bindings/mtd/atmel-nand.txt b/Documentation/devicetree/bindings/mtd/atmel-nand.txt index f6bee57e453a..9bb66e476672 100644 --- a/Documentation/devicetree/bindings/mtd/atmel-nand.txt +++ b/Documentation/devicetree/bindings/mtd/atmel-nand.txt @@ -59,8 +59,22 @@ Required properties: - reg: should contain 2 register ranges. The first one is pointing to the PMECC block, and the second one to the PMECC_ERRLOC block. +* SAMA5 NFC I/O bindings: + +SAMA5 SoCs embed an advanced NAND controller logic to automate READ/WRITE page +operations. This interface to this logic is placed in a separate I/O range and +should thus have its own DT node. + +- compatible: should be "atmel,sama5d3-nfc-io", "syscon". +- reg: should contain the I/O range used to interact with the NFC logic. + Example: + nfc_io: nfc-io at 70000000 { + compatible = "atmel,sama5d3-nfc-io", "syscon"; + reg = <0x70000000 0x8000000>; + }; + pmecc: ecc-engine at ffffc070 { compatible = "atmel,at91sam9g45-pmecc"; reg = <0xffffc070 0x490>, -- 2.7.4