Documentation/devicetree/bindings/edac/apm-xgene-edac.txt

   1 * APM X-Gene SoC EDAC node
   2
   3 EDAC node is defined to describe on-chip error detection and correction.
   4 The follow error types are supported:
   5
   6   memory controller     - Memory controller
   7   PMD (L1/L2)           - Processor module unit (PMD) L1/L2 cache
   8   L3                    - L3 cache controller
   9   SoC                   - SoC IP's such as Ethernet, SATA, and etc
  10
  11 The following section describes the EDAC DT node binding.
  12
  13 Required properties:
  14 - compatible            : Shall be "apm,xgene-edac".
  15 - regmap-csw            : Regmap of the CPU switch fabric (CSW) resource.
  16 - regmap-mcba           : Regmap of the MCB-A (memory bridge) resource.
  17 - regmap-mcbb           : Regmap of the MCB-B (memory bridge) resource.
  18 - regmap-efuse          : Regmap of the PMD efuse resource.
  19 - reg                   : First resource shall be the CPU bus (PCP) resource.
  20 - interrupts            : Interrupt-specifier for MCU, PMD, L3, or SoC error
  21                           IRQ(s).
  22
  23 Required properties for memory controller subnode:
  24 - compatible            : Shall be "apm,xgene-edac-mc".
  25 - reg                   : First resource shall be the memory controller unit
  26                           (MCU) resource.
  27 - memory-controller     : Instance number of the memory controller.
  28
  29 Required properties for PMD subnode:
  30 - compatible            : Shall be "apm,xgene-edac-pmd" or
  31                           "apm,xgene-edac-pmd-v2".
  32 - reg                   : First resource shall be the PMD resource.
  33 - pmd-controller        : Instance number of the PMD controller.
  34
  35 Required properties for L3 subnode:
  36 - compatible            : Shall be "apm,xgene-edac-l3" or
  37                           "apm,xgene-edac-l3-v2".
  38 - reg                   : First resource shall be the L3 EDAC resource.
  39
  40 Required properties for SoC subnode:
  41 - compatible            : Shall be "apm,xgene-edac-soc-v1" for revision 1 or
  42                           "apm,xgene-edac-l3-soc" for general value reporting
  43                           only.
  44 - reg                   : First resource shall be the SoC EDAC resource.
  45
  46 Example:
  47         csw: csw@7e200000 {
  48                 compatible = "apm,xgene-csw", "syscon";
  49                 reg = <0x0 0x7e200000 0x0 0x1000>;
  50         };
  51
  52         mcba: mcba@7e700000 {
  53                 compatible = "apm,xgene-mcb", "syscon";
  54                 reg = <0x0 0x7e700000 0x0 0x1000>;
  55         };
  56
  57         mcbb: mcbb@7e720000 {
  58                 compatible = "apm,xgene-mcb", "syscon";
  59                 reg = <0x0 0x7e720000 0x0 0x1000>;
  60         };
  61
  62         efuse: efuse@1054a000 {
  63                 compatible = "apm,xgene-efuse", "syscon";
  64                 reg = <0x0 0x1054a000 0x0 0x20>;
  65         };
  66
  67         edac@78800000 {
  68                 compatible = "apm,xgene-edac";
  69                 #address-cells = <2>;
  70                 #size-cells = <2>;
  71                 ranges;
  72                 regmap-csw = <&csw>;
  73                 regmap-mcba = <&mcba>;
  74                 regmap-mcbb = <&mcbb>;
  75                 regmap-efuse = <&efuse>;
  76                 reg = <0x0 0x78800000 0x0 0x100>;
  77                 interrupts = <0x0 0x20 0x4>,
  78                              <0x0 0x21 0x4>,
  79                              <0x0 0x27 0x4>;
  80
  81                 edacmc@7e800000 {
  82                         compatible = "apm,xgene-edac-mc";
  83                         reg = <0x0 0x7e800000 0x0 0x1000>;
  84                         memory-controller = <0>;
  85                 };
  86
  87                 edacpmd@7c000000 {
  88                         compatible = "apm,xgene-edac-pmd";
  89                         reg = <0x0 0x7c000000 0x0 0x200000>;
  90                         pmd-controller = <0>;
  91                 };
  92
  93                 edacl3@7e600000 {
  94                         compatible = "apm,xgene-edac-l3";
  95                         reg = <0x0 0x7e600000 0x0 0x1000>;
  96                 };
  97
  98                 edacsoc@7e930000 {
  99                         compatible = "apm,xgene-edac-soc-v1";
 100                         reg = <0x0 0x7e930000 0x0 0x1000>;
 101                 };
 102         };