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| author | Tomer Maimon <tmaimon77@gmail.com> | 2019-11-06 15:53:29 +0100 |
|---|---|---|
| committer | Philipp Zabel <p.zabel@pengutronix.de> | 2020-01-02 12:25:05 +0100 |
| commit | c6ed90b54f0869bddcd3f4c200edfcec3d1b9ae8 (patch) | |
| tree | 6d0799851d09cb4907e0b1fc4b7d38bc36ab0bbb /Documentation | |
| parent | Linux 5.5-rc3 (diff) | |
| download | linux-c6ed90b54f0869bddcd3f4c200edfcec3d1b9ae8.tar.xz linux-c6ed90b54f0869bddcd3f4c200edfcec3d1b9ae8.zip | |
dt-bindings: reset: add NPCM reset controller documentation
Added device tree binding documentation for Nuvoton BMC
NPCM reset controller.
Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/reset/nuvoton,npcm-reset.txt | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/reset/nuvoton,npcm-reset.txt b/Documentation/devicetree/bindings/reset/nuvoton,npcm-reset.txt new file mode 100644 index 000000000000..6e802703af60 --- /dev/null +++ b/Documentation/devicetree/bindings/reset/nuvoton,npcm-reset.txt @@ -0,0 +1,32 @@ +Nuvoton NPCM Reset controller + +Required properties: +- compatible : "nuvoton,npcm750-reset" for NPCM7XX BMC +- reg : specifies physical base address and size of the register. +- #reset-cells: must be set to 2 + +Optional property: +- nuvoton,sw-reset-number - Contains the software reset number to restart the SoC. + NPCM7xx contain four software reset that represent numbers 1 to 4. + + If 'nuvoton,sw-reset-number' is not specfied software reset is disabled. + +Example: + rstc: rstc@f0801000 { + compatible = "nuvoton,npcm750-reset"; + reg = <0xf0801000 0x70>; + #reset-cells = <2>; + nuvoton,sw-reset-number = <2>; + }; + +Specifying reset lines connected to IP NPCM7XX modules +====================================================== +example: + + spi0: spi@..... { + ... + resets = <&rstc NPCM7XX_RESET_IPSRST2 NPCM7XX_RESET_PSPI1>; + ... + }; + +The index could be found in <dt-bindings/reset/nuvoton,npcm7xx-reset.h>. |