From: Diana Craciun <Diana.Craciun@xxxxxxxxxxxxx>
The CoreNet coherency fabric is a fabric-oriented, conectivity
infrastructure that enables the implementation of coherent, multicore
systems. The CCF acts as a central interconnect for cores,
platform-level caches, memory subsystem, peripheral devices and I/O host
bridges in the system.
Signed-off-by: Diana Craciun <Diana.Craciun@xxxxxxxxxxxxx>
---
v3:
- added port ID mapping
- removed fsl,corenetx-cf
.../devicetree/bindings/powerpc/fsl/ccf.txt | 42 ++++++++++++++++++++++
.../devicetree/bindings/powerpc/fsl/cpus.txt | 8 +++++
.../devicetree/bindings/powerpc/fsl/pamu.txt | 8 +++++
3 files changed, 58 insertions(+)
create mode 100644 Documentation/devicetree/bindings/powerpc/fsl/ccf.txt
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/ccf.txt b/Documentation/devicetree/bindings/powerpc/fsl/ccf.txt
new file mode 100644
index 0000000..1263c29
--- /dev/null
+++ b/Documentation/devicetree/bindings/powerpc/fsl/ccf.txt
@@ -0,0 +1,42 @@
+Freescale CoreNet Coherency Fabric(CCF) Device Tree Binding
+
+DESCRIPTION
+
+The CoreNet coherency fabric is a fabric-oriented, connectivity infrastructure
+that enables the implementation of coherent, multicore systems.
+
+Required properties:
+
+- compatible : <string>
+ fsl,corenet1-cf - CoreNet coherency fabric version 1. Example chips: T4240,
+ B4860
+ fsl,corenet2-cf - CoreNet coherency fabric version 2. Example chips: P5020,
+ P4080, P3041, P2041
+ fsl,corenet-cf - It is used to represent the common registers between
+ CCF version 1 and CCF version 2. This compatible is retained for
+ compatibility reasons as it was already used for both CCF version 1 chips
+ and CCF version 2 chips.
+
+- reg : <prop-encoded-array>
+ A standard property. Represents the CCF registers.
+
+- interrupts : <prop-encoded-array>
+ Interrupt mapping for CCF error interrupt.
+
+- fsl,ccf-num-csdids: <u32>
+ Specifies the number of Coherency Subdomain ID Port Mapping
+ Registers that are supported by the CCF.
+
+- fsl,ccf-num-snoopids: <u32>
+ Specifies the number of Snoop ID Port Mapping Registers that
+ are supported by CCF.
+
+Example:
+
+ corenet-cf@18000 {
+ compatible = "fsl,corenet2-cf", "fsl,corenet-cf";
+ reg = <0x18000 0x1000>;
+ interrupts = <16 2 1 31>;
+ fsl,ccf-num-csdids = <32>;
+ fsl,ccf-num-snoopids = <32>;
+ };
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/cpus.txt b/Documentation/devicetree/bindings/powerpc/fsl/cpus.txt
index 922c30a..09dbc5f 100644
--- a/Documentation/devicetree/bindings/powerpc/fsl/cpus.txt
+++ b/Documentation/devicetree/bindings/powerpc/fsl/cpus.txt
@@ -20,3 +20,11 @@ PROPERTIES
a property named fsl,eref-[CAT], where [CAT] is the abbreviated category
name with all uppercase letters converted to lowercase, indicates that
the category is supported by the implementation.
+
+ - fsl,portid-mapping : <u32>
+ The Coherency Subdomain ID Port Mapping Registers and Snoop ID Port Mapping
+ registers which are part of the CoreNet Coherency fabric (CCF) provide a
+ CoreNet Coherency Subdomain ID/CoreNet Snoop ID to cpu mapping functions.
+ Certain bits from these registers should be set if the coresponding CPU
+ should be snooped. This property defines a bitmask which selects the bit that
+ should be set if this cpu should be snooped.
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/pamu.txt b/Documentation/devicetree/bindings/powerpc/fsl/pamu.txt
index 1f5e329..827c637 100644
--- a/Documentation/devicetree/bindings/powerpc/fsl/pamu.txt
+++ b/Documentation/devicetree/bindings/powerpc/fsl/pamu.txt
@@ -26,6 +26,13 @@ Required properties:
A standard property.
- #size-cells : <u32>
A standard property.
+- fsl,portid-mapping : <u32>
+ The Coherency Subdomain ID Port Mapping Registers and Snoop ID Port Mapping
+ registers which are part of the CoreNet Coherency fabric (CCF) provide a
+ CoreNet Coherency Subdomain ID/CoreNet Snoop ID to pamu mapping functions.
+ Certain bits from these registers should be set if PAMUs should be snooped.
+ This property defines a bitmask which selects the bits that should be set
+ if PAMUs should be snooped.
Optional properties:
- reg : <prop-encoded-array>
@@ -88,6 +95,7 @@ Example:
compatible = "fsl,pamu-v1.0", "fsl,pamu";
reg = <0x20000 0x5000>;
ranges = <0 0x20000 0x5000>;
+ fsl,portid-mapping = <0xf80000>;
#address-cells = <1>;
#size-cells = <1>;
interrupts = <
--
1.7.11.7
--
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