This patch introduces new library callback (ArmadaSoCDescMdioGet ()),
which dynamically allocates and fills MV_SOC_MDIO_DESC structure with
the SoC description of Mdio controllers.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
---
 Silicon/Marvell/Armada7k8k/Library/Armada7k8kSoCDescLib/Armada7k8kSoCDescLib.h |  6 ++++
 Silicon/Marvell/Include/Library/ArmadaSoCDescLib.h                             | 15 ++++++++++
 Silicon/Marvell/Armada7k8k/Library/Armada7k8kSoCDescLib/Armada7k8kSoCDescLib.c | 29 ++++++++++++++++++++
 3 files changed, 50 insertions(+)

diff --git a/Silicon/Marvell/Armada7k8k/Library/Armada7k8kSoCDescLib/Armada7k8kSoCDescLib.h b/Silicon/Marvell/Armada7k8k/Library/Armada7k8kSoCDescLib/Armada7k8kSoCDescLib.h
index f254b1c..87fc140 100644
--- a/Silicon/Marvell/Armada7k8k/Library/Armada7k8kSoCDescLib/Armada7k8kSoCDescLib.h
+++ b/Silicon/Marvell/Armada7k8k/Library/Armada7k8kSoCDescLib/Armada7k8kSoCDescLib.h
@@ -38,6 +38,12 @@
 #define MV_SOC_COMPHY_MUX_BITS           4
 
 //
+// Platform description of MDIO controllers
+//
+#define MV_SOC_MDIO_BASE(Cp)             (MV_SOC_CP_BASE (Cp) + 0x12A200)
+#define MV_SOC_MDIO_ID(Cp)               (Cp)
+
+//
 // Platform description of PP2 NIC
 //
 #define MV_SOC_PP2_BASE(Cp)              MV_SOC_CP_BASE (Cp)
diff --git a/Silicon/Marvell/Include/Library/ArmadaSoCDescLib.h b/Silicon/Marvell/Include/Library/ArmadaSoCDescLib.h
index a133d1c..304d068 100644
--- a/Silicon/Marvell/Include/Library/ArmadaSoCDescLib.h
+++ b/Silicon/Marvell/Include/Library/ArmadaSoCDescLib.h
@@ -37,6 +37,21 @@ ArmadaSoCDescComPhyGet (
   );
 
 //
+// MDIO
+//
+typedef struct {
+  UINTN MdioId;
+  UINTN MdioBaseAddress;
+} MV_SOC_MDIO_DESC;
+
+EFI_STATUS
+EFIAPI
+ArmadaSoCDescMdioGet (
+  IN OUT MV_SOC_MDIO_DESC  **MdioDesc,
+  IN OUT UINTN              *DescCount
+  );
+
+//
 // NonDiscoverable devices SoC description
 //
 // AHCI
diff --git a/Silicon/Marvell/Armada7k8k/Library/Armada7k8kSoCDescLib/Armada7k8kSoCDescLib.c b/Silicon/Marvell/Armada7k8k/Library/Armada7k8kSoCDescLib/Armada7k8kSoCDescLib.c
index 580c0f4..652677f 100644
--- a/Silicon/Marvell/Armada7k8k/Library/Armada7k8kSoCDescLib/Armada7k8kSoCDescLib.c
+++ b/Silicon/Marvell/Armada7k8k/Library/Armada7k8kSoCDescLib/Armada7k8kSoCDescLib.c
@@ -63,6 +63,35 @@ ArmadaSoCDescComPhyGet (
 
 EFI_STATUS
 EFIAPI
+ArmadaSoCDescMdioGet (
+  IN OUT MV_SOC_MDIO_DESC  **MdioDesc,
+  IN OUT UINTN              *DescCount
+  )
+{
+  MV_SOC_MDIO_DESC *Desc;
+  UINTN CpCount, CpIndex;
+
+  CpCount = FixedPcdGet8 (PcdMaxCpCount);
+
+  Desc = AllocateZeroPool (CpCount * sizeof (MV_SOC_MDIO_DESC));
+  if (Desc == NULL) {
+    DEBUG ((DEBUG_ERROR, "%a: Cannot allocate memory\n", __FUNCTION__));
+    return EFI_OUT_OF_RESOURCES;
+  }
+
+  for (CpIndex = 0; CpIndex < CpCount; CpIndex++) {
+    Desc[CpIndex].MdioId = MV_SOC_MDIO_ID (CpIndex);
+    Desc[CpIndex].MdioBaseAddress = MV_SOC_MDIO_BASE (CpIndex);
+  }
+
+  *MdioDesc = Desc;
+  *DescCount = CpCount;
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
 ArmadaSoCDescAhciGet (
   IN OUT MV_SOC_AHCI_DESC  **AhciDesc,
   IN OUT UINTN              *DescCount
-- 
2.7.4

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