This patch adds documentation for the APM X-Gene SoC EDAC DTS binding.
Signed-off-by: Feng Kan <fkan@xxxxxxx>
Signed-off-by: Loc Ho <lho@xxxxxxx>
---
.../devicetree/bindings/edac/apm-xgene-edac.txt | 81 ++++++++++++++++++++
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create mode 100644 Documentation/devicetree/bindings/edac/apm-xgene-edac.txt
diff --git a/Documentation/devicetree/bindings/edac/apm-xgene-edac.txt b/Documentation/devicetree/bindings/edac/apm-xgene-edac.txt
new file mode 100644
index 0000000..fc3dbbc
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+* APM X-Gene EDAC nodes
+
+EDAC nodes are defined to describe on-chip error detection and correction.
+There are four types of EDAC:
+
+ memory controller - Memory controller
+ PMD (L1/L2) - Processor module unit (PMD) L1/L2 cache
+ L3 - CPU L3 cache
+ SoC - SoC IP such as SATA, Ethernet, and etc
+
+The following section describes the memory controller DT node binding.
+
+Required properties:
+- compatible : Shall be "apm,xgene-edac-mc".
+- reg : First resource shall be the PCP resource.
+ Second resource shall be the CSW resource.
+ Third resource shall be the MCB-A resource.
+ Fourth resource shall be the MCB-B resource.
+ Fifth resource shall be the MCU resource.
+- interrupts : Interrupt-specifier for MCU error IRQ(s).
+
+The following section describes the L1/L2 DT node binding.
+
+- compatible : Shall be "apm,xgene-edac-pmd".
+- reg : First resource shall be the PCP resource.
+ Second resource shall be the PMD resource.
+ Third resource shall be the PMD efuse resource.
+- interrupts : Interrupt-specifier for PMD error IRQ(s).
+
+The following section describes the L3 DT node binding.
+
+- compatible : Shall be "apm,xgene-edac-l3".
+- reg : First resource shall be the PCP resource.
+ Second resource shall be the L3 resource.
+- interrupts : Interrupt-specifier for L3 error IRQ(s).
+
+The following section describes the SOC DT node binding.
+
+- compatible : Shall be "apm,xgene-edac-soc"".
+- reg : First resource shall be the PCP resource.
+ Second resource shall be the SOC resource.
+- interrupts : nterrupt-specifier for SoC error IRQ(s).
+
+Example:
+ edacmc0: edacmc0@7e800000 {
+ compatible = "apm,xgene-edac-mc";
+ reg = <0x0 0x78800000 0x0 0x1000>,
+ <0x0 0x7e200000 0x0 0x1000>,
+ <0x0 0x7e700000 0x0 0x1000>,
+ <0x0 0x7e720000 0x0 0x1000>,
+ <0x0 0x7e800000 0x0 0x1000>;
+ interrupts = <0x0 0x20 0x4>,
+ <0x0 0x21 0x4>;
+ };
+
+ edacl3: edacl3@7e600000 {
+ compatible = "apm,xgene-edac-l3";
+ reg = <0x0 0x78800000 0x0 0x1000>,
+ <0x0 0x7e600000 0x0 0x1000>;
+ interrupts = <0x0 0x20 0x4>,
+ <0x0 0x21 0x4>;
+ };
+
+ edacpmd0: edacpmd0@7c000000 {
+ compatible = "apm,xgene-edac-pmd";
+ reg = <0x0 0x78800000 0x0 0x1000>,
+ <0x0 0x7c000000 0x0 0x200000>,
+ <0x0 0x1054a000 0x0 0x10>;
+ interrupts = <0x0 0x20 0x4>,
+ <0x0 0x21 0x4>;
+ };
+
+ edacsoc: edacsoc@7e930000 {
+ compatible = "apm,xgene-edac-soc";
+ reg = <0x0 0x78800000 0x0 0x1000>,
+ <0x0 0x7e930000 0x0 0x1000>;
+ interrupts = <0x0 0x20 0x4>,
+ <0x0 0x21 0x4>,
+ <0x0 0x27 0x4>;
+ };
+
--
1.5.5
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