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-rw-r--r--Documentation/devicetree/bindings/mtd/gpmc-nand.txt8
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
index 6a983c1d87cd..df338cb5059c 100644
--- a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
@@ -29,6 +29,13 @@ Optional properties:
"bch4" 4-bit BCH ecc code
"bch8" 8-bit BCH ecc code
+ - ti,nand-xfer-type: A string setting the data transfer type. One of:
+
+ "prefetch-polled" Prefetch polled mode (default)
+ "polled" Polled mode, without prefetch
+ "prefetch-dma" Prefetch enabled sDMA mode
+ "prefetch-irq" Prefetch enabled irq mode
+
- elm_id: Specifies elm device node. This is required to support BCH
error correction using ELM module.
@@ -55,6 +62,7 @@ Example for an AM33xx board:
reg = <0 0 0>; /* CS0, offset 0 */
nand-bus-width = <16>;
ti,nand-ecc-opt = "bch8";
+ ti,nand-xfer-type = "polled";
gpmc,sync-clk-ps = <0>;
gpmc,cs-on-ns = <0>;