[PATCH v10 3/5] Documentation: Add documentation for the APM X-Gene SoC EDAC DTS binding

Loc Ho
2015-05-18T23:24:39Z

This patch adds documentation for the APM X-Gene SoC EDAC DTS binding.

Signed-off-by: Loc Ho <lho@apm.com>
---
.../devicetree/bindings/edac/apm-xgene-edac.txt | 74 ++++++++++++++++++++
1 files changed, 74 insertions(+), 0 deletions(-)
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..d8f2782
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@@ -0,0 +1,74 @@
+* APM X-Gene SoC EDAC node
+
+EDAC node is defined to describe on-chip error detection and correction.
+The follow error types are supported:
+
+ memory controller - Memory controller
+ PMD (L1/L2) - Processor module unit (PMD) L1/L2 cache
+
+The following section describes the EDAC DT node binding.
+
+Required properties:
+- compatible : Shall be "apm,xgene-edac".
+- regmap-csw : Regmap of the CPU switch fabric (CSW) resource.
+- regmap-mcba : Regmap of the MCB-A (memory bridge) resource.
+- regmap-mcbb : Regmap of the MCB-B (memory bridge) resource.
+- regmap-efuse : Regmap of the PMD efuse resource.
+- reg : First resource shall be the CPU bus (PCP) resource.
+- interrupts : Interrupt-specifier for MCU, PMD, L3, or SoC error
+ IRQ(s).
+
+Required properties for memory controller subnode:
+- compatible : Shall be "apm,xgene-edac-mc".
+- reg : First resource shall be the memory controller unit
+ (MCU) resource.
+
+Required properties for PMD subnode:
+- compatible : Shall be "apm,xgene-edac-pmd".
+- reg : First resource shall be the PMD resource.
+
+Example:
+ csw: csw at 7e200000 {
+ compatible = "syscon";
+ reg = <0x0 0x7e200000 0x0 0x1000>;
+ };
+
+ mcba: mcba at 7e700000 {
+ compatible = "syscon";
+ reg = <0x0 0x7e700000 0x0 0x1000>;
+ };
+
+ mcbb: mcbb at 7e720000 {
+ compatible = "syscon";
+ reg = <0x0 0x7e720000 0x0 0x1000>;
+ };
+
+ efuse: efuse at 1054a000 {
+ compatible = "syscon";
+ reg = <0x0 0x1054a000 0x0 0x20>;
+ };
+
+ edac at 78800000 {
+ compatible = "apm,xgene-edac";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+ regmap-csw = <&csw>;
+ regmap-mcba = <&mcba>;
+ regmap-mcbb = <&mcbb>;
+ regmap-efuse = <&efuse>;
+ reg = <0x0 0x78800000 0x0 0x100>;
+ interrupts = <0x0 0x20 0x4>,
+ <0x0 0x21 0x4>,
+ <0x0 0x27 0x4>;
+
+ edacmc at 7e800000 {
+ compatible = "apm,xgene-edac-mc";
+ reg = <0x0 0x7e800000 0x0 0x1000>;
+ };
+
+ edacpmd at 7c000000 {
+ compatible = "apm,xgene-edac-pmd";
+ reg = <0x0 0x7c000000 0x0 0x200000>;
+ };
+ };
--
1.7.1