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author | Chuanhong Guo <gch981213@gmail.com> | 2020-03-06 11:50:51 +0300 |
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committer | Mark Brown <broonie@kernel.org> | 2020-03-11 22:56:08 +0300 |
commit | 13a971046a23990a00419d031642a09605903caa (patch) | |
tree | 42f6fd571908854098498decf774474dae77d8b0 /Documentation/devicetree/bindings/mtd | |
parent | 881d1ee9fe81ff2be1b90809a07621be97404a57 (diff) | |
download | linux-13a971046a23990a00419d031642a09605903caa.tar.xz |
dt-bindings: convert mtk-quadspi binding doc for spi-mtk-nor
spi-mtk-nor is a driver to replace mtk-quadspi and they have almost
the same device-tree bindings. Reuse this binding documentation and
convert it for new driver:
1. "Mediatek SoCs" -> "Mediatek ARM SoCs" because MTK MIPS SoCs
use different controllers.
2. document "interrupts" as a required property because it's
available on all SoCs with this controller and new driver takes
advantages of it. It's implemented as optional only to maintain
backward compatibility.
3. add a dummy interrupt binding in example.
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
Link: https://lore.kernel.org/r/20200306085052.28258-4-gch981213@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/mtd')
-rw-r--r-- | Documentation/devicetree/bindings/mtd/mtk-quadspi.txt | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt b/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt deleted file mode 100644 index a12e3b5c495d..000000000000 --- a/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt +++ /dev/null @@ -1,50 +0,0 @@ -* 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>; - }; -}; - |