提交 22f090a4 编写于 作者: L Linus Walleij 提交者: Brian Norris

mtd: add DT bindings for the Cortina Systems Gemini Flash

This adds device tree bindings for the Cortina systems Gemini
flash controller, a simple physmap which however need a few
syscon bits to be poked to operate properly.

Cc: Janos Laube <janos.dev@gmail.com>
Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Reviewed-by: NMarek Vasut <marek.vasut@gmail.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NBrian Norris <computersforpeace@gmail.com>
上级 be5e5099
Flash device on Cortina Systems Gemini SoC
This flash is regular CFI compatible (Intel or AMD extended) flash chips with
some special bits that can be controlled by the machine's system controller.
Required properties:
- compatible : must be "cortina,gemini-flash", "cfi-flash";
- reg : memory address for the flash chip
- syscon : must be a phandle to the system controller
- bank-width : width in bytes of flash interface, should be <2>
For the rest of the properties, see mtd-physmap.txt.
The device tree may optionally contain sub-nodes describing partitions of the
address space. See partition.txt for more detail.
Example:
flash@30000000 {
compatible = "cortina,gemini-flash", "cfi-flash";
reg = <0x30000000 0x01000000>;
syscon = <&syscon>;
bank-width = <2>;
};
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