Add extsys0 remoteproc node as a child node of syscon extsys0 describes the Corstone-1000 external system [1] (the remote processor).
The host (Cortex-A35) can control the external system through memory mapped registers located in a memory area called the Host Base System Control [2][3]. This area is part of the host memory space. We use syscon to represent the Host Base System Control area and the remoteproc node is a child node. [1]: Documentation/devicetree/bindings/remoteproc/arm,sse710-extsys.yaml [2]: https://developer.arm.com/documentation/102342/0000/Programmers-model/Register-descriptions/Host-Base-System-Control-register-summary [3]: Documentation/devicetree/bindings/arm/arm,sse710-host-base-sysctrl.yaml Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhl...@arm.com> --- arch/arm64/boot/dts/arm/corstone1000.dtsi | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm64/boot/dts/arm/corstone1000.dtsi b/arch/arm64/boot/dts/arm/corstone1000.dtsi index 01c65195ca53..17d6638f9ca6 100644 --- a/arch/arm64/boot/dts/arm/corstone1000.dtsi +++ b/arch/arm64/boot/dts/arm/corstone1000.dtsi @@ -103,6 +103,18 @@ soc { interrupt-parent = <&gic>; ranges; + syscon@1a010000 { + compatible = "arm,sse710-host-base-sysctrl", + "simple-mfd", "syscon"; + reg = <0x1a010000 0x1000>; + + extsys0 { + compatible = "arm,sse710-extsys"; + #extsys-id = <0>; + firmware-name = "es_flashfw.elf"; + }; + }; + timer@1a220000 { compatible = "arm,armv7-timer-mem"; reg = <0x1a220000 0x1000>; -- 2.25.1
