[PATCH edk2-platforms 2/3] Silicon/NXP: LS1043A: Add Serdes Support

[Wasim Khan <wasim.khan@oss.nxp.com>]

From: Wasim Khan <wasim.khan@nxp.com>

Based on serdes protocol value in reset configuration word (RCW)
different IP blocks gets enabled in HW.
Add SoC specific serdes configuration for LS1043A, which can be
used by different IPs to know the enabled interfaces and perform
the required initialization.

Signed-off-by: Wasim Khan <wasim.khan@nxp.com>
---
 Silicon/NXP/LS1043A/LS1043A.dsc.inc           |  2 +
 Silicon/NXP/LS1043A/Library/SocLib/SocLib.inf |  6 ++
 Silicon/NXP/Include/Library/SerDes.h          | 28 ++++++++
 Silicon/NXP/LS1043A/Include/SocSerDes.h       | 68 ++++++++++++++++++
 Silicon/NXP/LS1043A/Library/SocLib/SerDes.c   | 75 ++++++++++++++++++++
 5 files changed, 179 insertions(+)

diff --git a/Silicon/NXP/LS1043A/LS1043A.dsc.inc b/Silicon/NXP/LS1043A/LS1043A.dsc.inc
index e023bfbc7c04..b598b5790b65 100644
--- a/Silicon/NXP/LS1043A/LS1043A.dsc.inc
+++ b/Silicon/NXP/LS1043A/LS1043A.dsc.inc
@@ -12,6 +12,7 @@
 [LibraryClasses.common]
   SocLib|Silicon/NXP/LS1043A/Library/SocLib/SocLib.inf
   SerialPortLib|Silicon/NXP/Library/DUartPortLib/DUartPortLib.inf
+  SerDesHelperLib|Silicon/NXP/Library/SerDesHelperLib/SerDesHelperLib.inf
 
 ################################################################################
 #
@@ -37,4 +38,5 @@ [PcdsFixedAtBuild.common]
   gNxpQoriqLsTokenSpaceGuid.PcdNumPciController|3
   gNxpQoriqLsTokenSpaceGuid.PcdPcieLutBase|0x10000
   gNxpQoriqLsTokenSpaceGuid.PcdPcieLutDbg|0x7FC
+  gNxpQoriqLsTokenSpaceGuid.PcdSerdesLanes|0x4
 ##
diff --git a/Silicon/NXP/LS1043A/Library/SocLib/SocLib.inf b/Silicon/NXP/LS1043A/Library/SocLib/SocLib.inf
index 3d0f988e1c67..4731bea8b92e 100644
--- a/Silicon/NXP/LS1043A/Library/SocLib/SocLib.inf
+++ b/Silicon/NXP/LS1043A/Library/SocLib/SocLib.inf
@@ -22,6 +22,12 @@ [Packages]
 [LibraryClasses]
   ChassisLib
   DebugLib
+  PcdLib
+  SerDesHelperLib
 
 [Sources.common]
   SocLib.c
+  SerDes.c
+
+[FixedPcd]
+  gNxpQoriqLsTokenSpaceGuid.PcdSerdesLanes
diff --git a/Silicon/NXP/Include/Library/SerDes.h b/Silicon/NXP/Include/Library/SerDes.h
new file mode 100644
index 000000000000..d846589401c6
--- /dev/null
+++ b/Silicon/NXP/Include/Library/SerDes.h
@@ -0,0 +1,28 @@
+/** SerDes.h
+  Header file for SoC specific Serdes routines
+
+  Copyright 2017-2020 NXP
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#ifndef SERDES_H
+#define SERDES_H
+
+VOID
+GetSerdesProtocolMaps (
+  OUT UINT64               *SerDesPrtclMap
+  );
+
+typedef VOID
+(*SERDES_PROBE_LANES_CALLBACK) (
+  IN UINT32 LaneProtocol,
+  IN VOID *Arg
+  );
+
+VOID
+SerDesProbeLanes (
+  IN SERDES_PROBE_LANES_CALLBACK SerDesLaneProbeCallback,
+  IN VOID                        *Arg
+  );
+#endif
diff --git a/Silicon/NXP/LS1043A/Include/SocSerDes.h b/Silicon/NXP/LS1043A/Include/SocSerDes.h
new file mode 100644
index 000000000000..5bf93cb32df6
--- /dev/null
+++ b/Silicon/NXP/LS1043A/Include/SocSerDes.h
@@ -0,0 +1,68 @@
+/** @file
+  SoC Specific header file for Serdes mapping
+
+  Copyright 2017-2020 NXP
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef SOC_SERDES_H
+#define SOC_SERDES_H
+
+typedef enum {
+  NONE = 0,
+  PCIE1,
+  PCIE2,
+  PCIE3,
+  SATA,
+  SGMII_FM1_DTSEC1,
+  SGMII_FM1_DTSEC2,
+  SGMII_FM1_DTSEC5,
+  SGMII_FM1_DTSEC6,
+  SGMII_FM1_DTSEC9,
+  SGMII_FM1_DTSEC10,
+  QSGMII_FM1_A,
+  XFI_FM1_MAC9,
+  XFI_FM1_MAC10,
+  SGMII_2500_FM1_DTSEC2,
+  SGMII_2500_FM1_DTSEC5,
+  SGMII_2500_FM1_DTSEC9,
+  SGMII_2500_FM1_DTSEC10,
+  SERDES_PRTCL_COUNT
+} SERDES_PROTOCOL;
+
+SERDES_CONFIG SerDes1ConfigTbl[] = {
+        /* SerDes 1 */
+  {0x1555, {XFI_FM1_MAC9, PCIE1, PCIE2, PCIE3 } },
+  {0x2555, {SGMII_2500_FM1_DTSEC9, PCIE1, PCIE2, PCIE3 } },
+  {0x4555, {QSGMII_FM1_A, PCIE1, PCIE2, PCIE3 } },
+  {0x4558, {QSGMII_FM1_A,  PCIE1, PCIE2, SATA } },
+  {0x1355, {XFI_FM1_MAC9, SGMII_FM1_DTSEC2, PCIE2, PCIE3 } },
+  {0x2355, {SGMII_2500_FM1_DTSEC9, SGMII_FM1_DTSEC2, PCIE2, PCIE3 } },
+  {0x3335, {SGMII_FM1_DTSEC9, SGMII_FM1_DTSEC2, SGMII_FM1_DTSEC5, PCIE3 } },
+  {0x3355, {SGMII_FM1_DTSEC9, SGMII_FM1_DTSEC2, PCIE2, PCIE3 } },
+  {0x3358, {SGMII_FM1_DTSEC9, SGMII_FM1_DTSEC2, PCIE2, SATA } },
+  {0x3555, {SGMII_FM1_DTSEC9, PCIE1, PCIE2, PCIE3 } },
+  {0x3558, {SGMII_FM1_DTSEC9, PCIE1, PCIE2, SATA } },
+  {0x7000, {PCIE1, PCIE1, PCIE1, PCIE1 } },
+  {0x9998, {PCIE1, PCIE2, PCIE3, SATA } },
+  {0x6058, {PCIE1, PCIE1, PCIE2, SATA } },
+  {0x1455, {XFI_FM1_MAC9, QSGMII_FM1_A, PCIE2, PCIE3 } },
+  {0x2455, {SGMII_2500_FM1_DTSEC9, QSGMII_FM1_A, PCIE2, PCIE3 } },
+  {0x2255, {SGMII_2500_FM1_DTSEC9, SGMII_2500_FM1_DTSEC2, PCIE2, PCIE3 } },
+  {0x3333, {SGMII_FM1_DTSEC9, SGMII_FM1_DTSEC2, SGMII_FM1_DTSEC5, SGMII_FM1_DTSEC6 } },
+  {0x1460, {XFI_FM1_MAC9, QSGMII_FM1_A, PCIE3, PCIE3 } },
+  {0x2460, {SGMII_2500_FM1_DTSEC9, QSGMII_FM1_A, PCIE3, PCIE3 } },
+  {0x3460, {SGMII_FM1_DTSEC9, QSGMII_FM1_A, PCIE3, PCIE3 } },
+  {0x3455, {SGMII_FM1_DTSEC9, QSGMII_FM1_A, PCIE2, PCIE3 } },
+  {0x9960, {PCIE1, PCIE2, PCIE3, PCIE3 } },
+  {0x2233, {SGMII_2500_FM1_DTSEC9, SGMII_FM1_DTSEC2, SGMII_FM1_DTSEC5, SGMII_FM1_DTSEC6 } },
+  {0x2533, {SGMII_2500_FM1_DTSEC9, PCIE1, SGMII_FM1_DTSEC5, SGMII_FM1_DTSEC6 } },
+  {}
+};
+
+SERDES_CONFIG *SerDesConfigTbl[] = {
+  SerDes1ConfigTbl
+};
+#endif
diff --git a/Silicon/NXP/LS1043A/Library/SocLib/SerDes.c b/Silicon/NXP/LS1043A/Library/SocLib/SerDes.c
new file mode 100644
index 000000000000..c27367621168
--- /dev/null
+++ b/Silicon/NXP/LS1043A/Library/SocLib/SerDes.c
@@ -0,0 +1,75 @@
+/** SerDes.c
+  Provides SoC specific serdes interface
+
+  Copyright 2017-2020 NXP
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#include <Library/ChassisLib.h>
+#include <Library/DebugLib.h>
+#include <Library/SerDesHelperLib.h>
+#include <Soc.h>
+#include <SocSerDes.h>
+#include <Uefi.h>
+
+#define RCWSR_SRDS1_PRTCL_MASK     0xffff0000
+#define RCWSR_SRDS1_PRTCL_SHIFT    16
+
+/**
+  Probe all serdes lanes for lane protocol and execute provided callback function.
+
+  @param  SerDesLaneProbeCallback Pointer Callback function to be called for Lane protocol
+  @param  Arg                     Pointer to Arguments to be passed to callback function.
+
+**/
+VOID
+SerDesProbeLanes (
+  IN SERDES_PROBE_LANES_CALLBACK SerDesLaneProbeCallback,
+  IN VOID                        *Arg
+  )
+{
+  UINT32                 SrdsProt;
+  LS1043A_DEVICE_CONFIG  *Dcfg;
+
+  Dcfg = (LS1043A_DEVICE_CONFIG  *)LS1043A_DCFG_ADDRESS;
+  SrdsProt = DcfgRead32 ((UINTN)&Dcfg->RcwSr[4]) & RCWSR_SRDS1_PRTCL_MASK;
+  SrdsProt >>= RCWSR_SRDS1_PRTCL_SHIFT;
+
+  SerDesInstanceProbeLanes (SRDS_1, SrdsProt,
+                                    FixedPcdGet8 (PcdSerdesLanes),
+                                    SERDES_PRTCL_COUNT,
+                                    SerDesConfigTbl[SRDS_1],
+                                    SerDesLaneProbeCallback,
+                                    Arg);
+}
+
+/**
+  Function to return Serdes protocol map for all serdes available on board.
+
+  @param  SerDesPrtclMap   Pointer to Serdes protocl map.
+
+**/
+VOID
+GetSerdesProtocolMaps (
+  OUT UINT64   *SerDesPrtclMap
+  )
+{
+  UINT32                 SrdsProt;
+  LS1043A_DEVICE_CONFIG  *Dcfg;
+  EFI_STATUS             Status;
+
+  *SerDesPrtclMap = 0x0;
+  Dcfg = (LS1043A_DEVICE_CONFIG  *)LS1043A_DCFG_ADDRESS;
+  SrdsProt = DcfgRead32 ((UINTN)&Dcfg->RcwSr[4]) & RCWSR_SRDS1_PRTCL_MASK;
+  SrdsProt >>= RCWSR_SRDS1_PRTCL_SHIFT;
+
+  Status = GetSerDesMap (SRDS_1, SrdsProt, FixedPcdGet8 (PcdSerdesLanes),
+                          SERDES_PRTCL_COUNT, SerDesConfigTbl[SRDS_1],
+                          SerDesPrtclMap);
+
+  if (Status != EFI_SUCCESS) {
+    DEBUG ((DEBUG_ERROR, "%a: failed for Serdes1 \n",__FUNCTION__));
+    *SerDesPrtclMap = 0x0;
+  }
+}
-- 
2.7.4