From 14e1eb5a91a96d9e1ce8051f752b7b6645bc8e10 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Tue, 4 Feb 2020 15:55:51 -0800 Subject: dt-bindings: arm: Document Broadcom SoCs 'secondary-boot-reg' Consolidate and move the 'secondary-boot-reg' property from the 3 existing binding documents into the main cpus.yaml documentation, also make sure that the property is enforced when relevant. Acked-by: Maxime Ripard Acked-by: Scott Branden Reviewed-by: Rob Herring Signed-off-by: Florian Fainelli --- Documentation/devicetree/bindings/arm/cpus.yaml | 33 +++++++++++++++++++++++++ 1 file changed, 33 insertions(+) (limited to 'Documentation/devicetree/bindings/arm/cpus.yaml') diff --git a/Documentation/devicetree/bindings/arm/cpus.yaml b/Documentation/devicetree/bindings/arm/cpus.yaml index 7a9c3ce2dbef..644dfc5f0731 100644 --- a/Documentation/devicetree/bindings/arm/cpus.yaml +++ b/Documentation/devicetree/bindings/arm/cpus.yaml @@ -287,6 +287,39 @@ properties: While optional, it is the preferred way to get access to the cpu-core power-domains. + secondary-boot-reg: + $ref: '/schemas/types.yaml#/definitions/uint32' + description: | + Required for systems that have an "enable-method" property value of + "brcm,bcm11351-cpu-method", "brcm,bcm23550" or "brcm,bcm-nsp-smp". + + This includes the following SoCs: | + BCM11130, BCM11140, BCM11351, BCM28145, BCM28155, BCM21664, BCM23550 + BCM58522, BCM58525, BCM58535, BCM58622, BCM58623, BCM58625, BCM88312 + + The secondary-boot-reg property is a u32 value that specifies the + physical address of the register used to request the ROM holding pen + code release a secondary CPU. The value written to the register is + formed by encoding the target CPU id into the low bits of the + physical start address it should jump to. + +if: + # If the enable-method property contains one of those values + properties: + enable-method: + contains: + enum: + - brcm,bcm11351-cpu-method + - brcm,bcm23550 + - brcm,bcm-nsp-smp + # and if enable-method is present + required: + - enable-method + +then: + required: + - secondary-boot-reg + required: - device_type - reg -- cgit