Add a new arm64 device tree binding cpu-return-addr. This binding is recomended for all ARM v8 CPUs that have an "enable-method" property value of "spin-table". The value is a 64 bit physical address that secondary CPU execution will transfer to upon CPU shutdown.
Signed-off-by: Geoff Levand <[email protected]> --- Documentation/devicetree/bindings/arm/cpus.txt | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/Documentation/devicetree/bindings/arm/cpus.txt b/Documentation/devicetree/bindings/arm/cpus.txt index 1fe72a0..42d5d5f 100644 --- a/Documentation/devicetree/bindings/arm/cpus.txt +++ b/Documentation/devicetree/bindings/arm/cpus.txt @@ -201,6 +201,15 @@ nodes to be present and contain the properties described below. property identifying a 64-bit zero-initialised memory location. + - cpu-return-addr + Usage: recomended for all ARM v8 CPUs that have an + "enable-method" property value of "spin-table". + Value type: <prop-encoded-array> + Definition: + # On ARM v8 64-bit systems must be a two cell property. + The value is a 64 bit physical address that secondary + CPU execution will transfer to upon CPU shutdown. + - qcom,saw Usage: required for systems that have an "enable-method" property value of "qcom,kpss-acc-v1" or @@ -285,6 +294,7 @@ cpus { reg = <0x0 0x0>; enable-method = "spin-table"; cpu-release-addr = <0 0x20000000>; + cpu-return-addr = <0 0x20001000> }; cpu@1 { @@ -293,6 +303,7 @@ cpus { reg = <0x0 0x1>; enable-method = "spin-table"; cpu-release-addr = <0 0x20000000>; + cpu-return-addr = <0 0x20001000> }; cpu@100 { @@ -301,6 +312,7 @@ cpus { reg = <0x0 0x100>; enable-method = "spin-table"; cpu-release-addr = <0 0x20000000>; + cpu-return-addr = <0 0x20001000> }; cpu@101 { @@ -309,6 +321,7 @@ cpus { reg = <0x0 0x101>; enable-method = "spin-table"; cpu-release-addr = <0 0x20000000>; + cpu-return-addr = <0 0x20001000> }; cpu@10000 { @@ -317,6 +330,7 @@ cpus { reg = <0x0 0x10000>; enable-method = "spin-table"; cpu-release-addr = <0 0x20000000>; + cpu-return-addr = <0 0x20001000> }; cpu@10001 { @@ -325,6 +339,7 @@ cpus { reg = <0x0 0x10001>; enable-method = "spin-table"; cpu-release-addr = <0 0x20000000>; + cpu-return-addr = <0 0x20001000> }; cpu@10100 { @@ -333,6 +348,7 @@ cpus { reg = <0x0 0x10100>; enable-method = "spin-table"; cpu-release-addr = <0 0x20000000>; + cpu-return-addr = <0 0x20001000> }; cpu@10101 { @@ -341,6 +357,7 @@ cpus { reg = <0x0 0x10101>; enable-method = "spin-table"; cpu-release-addr = <0 0x20000000>; + cpu-return-addr = <0 0x20001000> }; cpu@100000000 { @@ -349,6 +366,7 @@ cpus { reg = <0x1 0x0>; enable-method = "spin-table"; cpu-release-addr = <0 0x20000000>; + cpu-return-addr = <0 0x20001000> }; cpu@100000001 { @@ -357,6 +375,7 @@ cpus { reg = <0x1 0x1>; enable-method = "spin-table"; cpu-release-addr = <0 0x20000000>; + cpu-return-addr = <0 0x20001000> }; cpu@100000100 { @@ -365,6 +384,7 @@ cpus { reg = <0x1 0x100>; enable-method = "spin-table"; cpu-release-addr = <0 0x20000000>; + cpu-return-addr = <0 0x20001000> }; cpu@100000101 { @@ -373,6 +393,7 @@ cpus { reg = <0x1 0x101>; enable-method = "spin-table"; cpu-release-addr = <0 0x20000000>; + cpu-return-addr = <0 0x20001000> }; cpu@100010000 { @@ -381,6 +402,7 @@ cpus { reg = <0x1 0x10000>; enable-method = "spin-table"; cpu-release-addr = <0 0x20000000>; + cpu-return-addr = <0 0x20001000> }; cpu@100010001 { @@ -389,6 +411,7 @@ cpus { reg = <0x1 0x10001>; enable-method = "spin-table"; cpu-release-addr = <0 0x20000000>; + cpu-return-addr = <0 0x20001000> }; cpu@100010100 { @@ -397,6 +420,7 @@ cpus { reg = <0x1 0x10100>; enable-method = "spin-table"; cpu-release-addr = <0 0x20000000>; + cpu-return-addr = <0 0x20001000> }; cpu@100010101 { @@ -405,6 +429,7 @@ cpus { reg = <0x1 0x10101>; enable-method = "spin-table"; cpu-release-addr = <0 0x20000000>; + cpu-return-addr = <0 0x20001000> }; }; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
