mirror of https://gitee.com/openkylin/linux.git
51 lines
1.8 KiB
Plaintext
51 lines
1.8 KiB
Plaintext
* Serial NOR flash controller for MediaTek SoCs
|
|
|
|
Required properties:
|
|
- compatible: For mt8173, compatible should be "mediatek,mt8173-nor",
|
|
and it's the fallback compatible for other Soc.
|
|
For every other SoC, should contain both the SoC-specific compatible
|
|
string and "mediatek,mt8173-nor".
|
|
The possible values are:
|
|
"mediatek,mt2701-nor", "mediatek,mt8173-nor"
|
|
"mediatek,mt2712-nor", "mediatek,mt8173-nor"
|
|
"mediatek,mt7622-nor", "mediatek,mt8173-nor"
|
|
"mediatek,mt7623-nor", "mediatek,mt8173-nor"
|
|
"mediatek,mt7629-nor", "mediatek,mt8173-nor"
|
|
"mediatek,mt8173-nor"
|
|
- reg: physical base address and length of the controller's register
|
|
- clocks: the phandle of the clocks needed by the nor controller
|
|
- clock-names: the names of the clocks
|
|
the clocks should be named "spi" and "sf". "spi" is used for spi bus,
|
|
and "sf" is used for controller, these are the clocks witch
|
|
hardware needs to enabling nor flash and nor flash controller.
|
|
See Documentation/devicetree/bindings/clock/clock-bindings.txt for details.
|
|
- #address-cells: should be <1>
|
|
- #size-cells: should be <0>
|
|
|
|
The SPI flash must be a child of the nor_flash node and must have a
|
|
compatible property. Also see jedec,spi-nor.txt.
|
|
|
|
Required properties:
|
|
- compatible: May include a device-specific string consisting of the manufacturer
|
|
and name of the chip. Must also include "jedec,spi-nor" for any
|
|
SPI NOR flash that can be identified by the JEDEC READ ID opcode (0x9F).
|
|
- reg : Chip-Select number
|
|
|
|
Example:
|
|
|
|
nor_flash: spi@1100d000 {
|
|
compatible = "mediatek,mt8173-nor";
|
|
reg = <0 0x1100d000 0 0xe0>;
|
|
clocks = <&pericfg CLK_PERI_SPI>,
|
|
<&topckgen CLK_TOP_SPINFI_IFR_SEL>;
|
|
clock-names = "spi", "sf";
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
|
|
flash@0 {
|
|
compatible = "jedec,spi-nor";
|
|
reg = <0>;
|
|
};
|
|
};
|
|
|