linux_dsm_epyc7002/Documentation/devicetree/bindings/mtd/gpmc-onenand.txt
Tom Rini a7adb70a73 dt-bindings: gpmc: Correct location of generic gpmc binding
The binding bus/ti-gpmc.txt has been moved to
memory-controllers/omap-gpmc.txt.  Update all references to this in
order to make reading and understanding a given binding easier.

Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc:Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Cyrille Pitchen <cyrille.pitchen@wedev4u.fr>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-06-22 21:12:15 +02:00

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Device tree bindings for GPMC connected OneNANDs
GPMC connected OneNAND (found on OMAP boards) are represented as child nodes of
the GPMC controller with a name of "onenand".
All timing relevant properties as well as generic gpmc child properties are
explained in a separate documents - please refer to
Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
Required properties:
- reg: The CS line the peripheral is connected to
- gpmc,device-width Width of the ONENAND device connected to the GPMC
in bytes. Must be 1 or 2.
Optional properties:
- dma-channel: DMA Channel index
For inline partition table parsing (optional):
- #address-cells: should be set to 1
- #size-cells: should be set to 1
Example for an OMAP3430 board:
gpmc: gpmc@6e000000 {
compatible = "ti,omap3430-gpmc";
ti,hwmods = "gpmc";
reg = <0x6e000000 0x1000000>;
interrupts = <20>;
gpmc,num-cs = <8>;
gpmc,num-waitpins = <4>;
#address-cells = <2>;
#size-cells = <1>;
onenand@0 {
reg = <0 0 0>; /* CS0, offset 0 */
gpmc,device-width = <2>;
#address-cells = <1>;
#size-cells = <1>;
/* partitions go here */
};
};