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| author |   Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2021-06-18 13:45:53 +1000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2021-06-21 21:15:58 +1000 |
| commit | aa9c5adf2f61da39c92280d9336e091852e292ff (patch) | |
| tree | 68ec33035c8024e57c2b1ea64e7612a7b9721f09 /arch/powerpc/boot | |
| parent | powerpc/microwatt: Populate platform bus from device-tree (diff) | |
| download | linux-dev-aa9c5adf2f61da39c92280d9336e091852e292ff.tar.xz linux-dev-aa9c5adf2f61da39c92280d9336e091852e292ff.zip | |
powerpc/xics: Add a native ICS backend for microwatt
This is a simple native ICS backend that matches the layout of
the Microwatt implementation of ICS.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Reviewed-by: Segher Boessenkool <segher@kernel.crashing.org>
[mpe: Add empty ics_native_init() to unbreak non-microwatt builds]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
fixup-ics
Link: https://lore.kernel.org/r/YMwW8cxrwB2W5EUN@thinks.paulus.ozlabs.org
Diffstat (limited to 'arch/powerpc/boot')
| -rw-r--r-- | arch/powerpc/boot/dts/microwatt.dts | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/powerpc/boot/dts/microwatt.dts b/arch/powerpc/boot/dts/microwatt.dts index 9b6140c90370..04e5dd92270e 100644 --- a/arch/powerpc/boot/dts/microwatt.dts +++ b/arch/powerpc/boot/dts/microwatt.dts @@ -99,7 +99,25 @@ compatible = "simple-bus"; #address-cells = <1>; #size-cells = <1>; + interrupt-parent = <&ICS>; ranges = <0 0 0xc0000000 0x40000000>; + + interrupt-controller@4000 { + compatible = "openpower,xics-presentation", "ibm,ppc-xicp"; + ibm,interrupt-server-ranges = <0x0 0x1>; + reg = <0x4000 0x100>; + }; + + ICS: interrupt-controller@5000 { + compatible = "openpower,xics-sources"; + interrupt-controller; + interrupt-ranges = <0x10 0x10>; + reg = <0x5000 0x100>; + #address-cells = <0>; + #size-cells = <0>; + #interrupt-cells = <2>; + }; + }; }; |