| Message ID | 20190416111631.356803-2-tmaimon77@gmail.com |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | misc: Add NPCM LPC BPC driver support | expand |
| Context | Check | Description |
|---|---|---|
| robh/checkpatch | success |
On Tue, Apr 16, 2019 at 02:16:30PM +0300, Tomer Maimon wrote: > Added device tree binding documentation for Nuvoton BMC > NPCM BIOS Post Code (BPC) and Apeed AST2500 LPC snoop. s/Apeed/Aspeed/ > The LPC snoop monitoring two configurable I/O addresses > written by the host on Low Pin Count (LPC) bus. > > Signed-off-by: Tomer Maimon <tmaimon77@gmail.com> > Reviewed-by: Andrew Jeffery <andrew@aj.id.au> > --- > .../devicetree/bindings/misc/lpc-snoop.txt | 27 ++++++++++++++++++++++ > 1 file changed, 27 insertions(+) > create mode 100644 Documentation/devicetree/bindings/misc/lpc-snoop.txt > > diff --git a/Documentation/devicetree/bindings/misc/lpc-snoop.txt b/Documentation/devicetree/bindings/misc/lpc-snoop.txt > new file mode 100644 > index 000000000000..c21cb8df4ffb > --- /dev/null > +++ b/Documentation/devicetree/bindings/misc/lpc-snoop.txt > @@ -0,0 +1,27 @@ > +LPC snoop interface > + > +The LPC snoop (BIOS Post Code) interface can monitor > +two configurable I/O addresses written by the host on > +the Low Pin Count (LPC) bus. > + > +Nuvoton NPCM7xx LPC snoop supports capture double words, > +when using capture double word only I/O address 1 is monitored. > + > +Required properties for lpc-snoop node > +- compatible : "nuvoton,npcm750-lpc-bpc-snoop" for Poleg NPCM7XX > + "aspeed,ast2500-lpc-snoop" for Aspeed AST2500. > +- reg : specifies physical base address and size of the registers. > +- interrupts : contain the LPC snoop interrupt with flags for falling edge. > +- snoop-ports : contain monitor I/O addresses, at least one monitor I/O > + address required > + > +Optional property for NPCM7xx lpc-snoop node > +- nuvoton,lpc-en-dwcapture : enable capture double words support. > + > +Example: > + lpc-snoop: lpc_snoop@f0007040 { lpc-snoop@... With that, Reviewed-by: Rob Herring <robh@kernel.org> > + compatible = "nuvoton,npcm750-lpc-bpc-snoop"; > + reg = <0xf0007040 0x14>; > + snoop-ports = <0x80>; > + interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>; > + }; > -- > 2.14.1 >
diff --git a/Documentation/devicetree/bindings/misc/lpc-snoop.txt b/Documentation/devicetree/bindings/misc/lpc-snoop.txt new file mode 100644 index 000000000000..c21cb8df4ffb --- /dev/null +++ b/Documentation/devicetree/bindings/misc/lpc-snoop.txt @@ -0,0 +1,27 @@ +LPC snoop interface + +The LPC snoop (BIOS Post Code) interface can monitor +two configurable I/O addresses written by the host on +the Low Pin Count (LPC) bus. + +Nuvoton NPCM7xx LPC snoop supports capture double words, +when using capture double word only I/O address 1 is monitored. + +Required properties for lpc-snoop node +- compatible : "nuvoton,npcm750-lpc-bpc-snoop" for Poleg NPCM7XX + "aspeed,ast2500-lpc-snoop" for Aspeed AST2500. +- reg : specifies physical base address and size of the registers. +- interrupts : contain the LPC snoop interrupt with flags for falling edge. +- snoop-ports : contain monitor I/O addresses, at least one monitor I/O + address required + +Optional property for NPCM7xx lpc-snoop node +- nuvoton,lpc-en-dwcapture : enable capture double words support. + +Example: + lpc-snoop: lpc_snoop@f0007040 { + compatible = "nuvoton,npcm750-lpc-bpc-snoop"; + reg = <0xf0007040 0x14>; + snoop-ports = <0x80>; + interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>; + };