[PATCH v2 1/4] dt-bindings: mtd: atmel-nand: Document the nfc-io bindings
Boris Brezillon
boris.brezillon at free-electrons.com
Tue May 30 02:20:51 PDT 2017
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 <boris.brezillon at free-electrons.com>
---
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
More information about the linux-arm-kernel
mailing list