From: Rafał Miłecki <rafal@xxxxxxxxxx>
BCM4908 is a SoC family with PCIe controller sharing design with the one
for STB. BCM4908 has different power management and memory controller so
few tweaks are required.
PERST# signal on BCM4908 is handled by an external MISC block so it
needs specifying a reset phandle.
Signed-off-by: Rafał Miłecki <rafal@xxxxxxxxxx>
---
.../bindings/pci/brcm,stb-pcie.yaml | 30 +++++++++++++++++--
1 file changed, 28 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
index 807694b4f41f..d3ab9e22f97c 100644
--- a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
@@ -14,6 +14,7 @@ properties:
items:
- enum:
- brcm,bcm2711-pcie # The Raspberry Pi 4
+ - brcm,bcm4908-pcie
- brcm,bcm7211-pcie # Broadcom STB version of RPi4
- brcm,bcm7278-pcie # Broadcom 7278 Arm
- brcm,bcm7216-pcie # Broadcom 7216 Arm
@@ -64,8 +65,6 @@ properties:
aspm-no-l0s: true
resets:
- description: for "brcm,bcm7216-pcie", must be a valid reset
- phandle pointing to the RESCAL reset controller provider node.
$ref: "/schemas/types.yaml#/definitions/phandle"
reset-names:
@@ -98,12 +97,39 @@ required:
allOf:
- $ref: /schemas/pci/pci-bus.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: brcm,bcm4908-pcie
+ then:
+ properties:
+ resets:
+ items:
+ - description: reset controller handling the PERST# signal
+
+ reset-names:
+ items:
+ - const: perst
+
+ required:
+ - resets
+ - reset-names
- if:
properties:
compatible:
contains:
const: brcm,bcm7216-pcie
then:
+ properties:
+ resets:
+ items:
+ - description: phandle pointing to the RESCAL reset controller
+
+ reset-names:
+ items:
+ - const: rescal
+
required:
- resets
- reset-names
--
2.26.2
