From c6ed90b54f0869bddcd3f4c200edfcec3d1b9ae8 Mon Sep 17 00:00:00 2001 From: Tomer Maimon Date: Wed, 6 Nov 2019 16:53:29 +0200 Subject: dt-bindings: reset: add NPCM reset controller documentation Added device tree binding documentation for Nuvoton BMC NPCM reset controller. Signed-off-by: Tomer Maimon Reviewed-by: Rob Herring Signed-off-by: Philipp Zabel --- .../bindings/reset/nuvoton,npcm-reset.txt | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/reset/nuvoton,npcm-reset.txt (limited to 'Documentation/devicetree/bindings') 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 . -- cgit v1.2.3