[PATCH v2 11/13] ArmPlatformPkg: remove unused PL310 driver

[Ard Biesheuvel <ard.biesheuvel@linaro.org>]

This driver is not used by any platforms so remove it.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by-if-no-comments-by-15-Dec: Leif Lindholm <leif.lindholm@linaro.org>
---
 ArmPlatformPkg/Drivers/PL310L2Cache/PL310L2Cache.c      | 126 --------------------
 ArmPlatformPkg/Drivers/PL310L2Cache/PL310L2CacheSec.inf |  31 -----
 ArmPlatformPkg/Include/Drivers/PL310L2Cache.h           |  79 ------------
 3 files changed, 236 deletions(-)

diff --git a/ArmPlatformPkg/Drivers/PL310L2Cache/PL310L2Cache.c b/ArmPlatformPkg/Drivers/PL310L2Cache/PL310L2Cache.c
deleted file mode 100644
index 1a6ab33720e5..000000000000
--- a/ArmPlatformPkg/Drivers/PL310L2Cache/PL310L2Cache.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/** @file
-*
-*  Copyright (c) 2011, ARM Limited. All rights reserved.
-*
-*  This program and the accompanying materials
-*  are licensed and made available under the terms and conditions of the BSD License
-*  which accompanies this distribution.  The full text of the license may be found at
-*  http://opensource.org/licenses/bsd-license.php
-*
-*  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-*  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-*
-**/
-
-#include <Library/IoLib.h>
-#include <Library/DebugLib.h>
-#include <Library/ArmLib.h>
-#include <Drivers/PL310L2Cache.h>
-#include <Library/PcdLib.h>
-
-#define L2x0WriteReg(reg,val)               MmioWrite32(PcdGet32(PcdL2x0ControllerBase) + reg, val)
-#define L2x0ReadReg(reg)                    MmioRead32(PcdGet32(PcdL2x0ControllerBase) + reg)
-
-// Initialize PL320 L2 Cache Controller
-VOID
-L2x0CacheInit (
-  IN  UINTN   L2x0Base,
-  IN  UINT32  L2x0TagLatencies,
-  IN  UINT32  L2x0DataLatencies,
-  IN  UINT32  L2x0AuxValue,
-  IN  UINT32  L2x0AuxMask,
-  IN  BOOLEAN CacheEnabled
-  )
-{
-  UINT32 Data;
-  UINT32 Revision;
-  UINT32 Aux;
-  UINT32 PfCtl;
-  UINT32 PwrCtl;
-
-  // Check if L2x0 is present and is an ARM implementation
-  Data = L2x0ReadReg(L2X0_CACHEID);
-  if ((Data >> 24) != L2X0_CACHEID_IMPLEMENTER_ARM) {
-    ASSERT(0);
-    return;
-  }
-
-  // Check if L2x0 is PL310
-  if (((Data >> 6) & 0xF) != L2X0_CACHEID_PARTNUM_PL310) {
-    ASSERT(0);
-    return;
-  }
-
-  // RTL release
-  Revision = Data & 0x3F;
-
-  // Check if L2x0 is already enabled then we disable it
-  Data = L2x0ReadReg(L2X0_CTRL);
-  if (Data & L2X0_CTRL_ENABLED) {
-    L2x0WriteReg(L2X0_CTRL, L2X0_CTRL_DISABLED);
-  }
-
-  //
-  // Set up global configurations
-  //
-
-  // Auxiliary register: Non-secure interrupt access Control + Event monitor bus enable + SBO
-  Aux = L2X0_AUXCTRL_NSAC | L2X0_AUXCTRL_EM | L2X0_AUXCTRL_SBO;
-  // Use AWCACHE attributes for WA
-  Aux |= L2x0_AUXCTRL_AW_AWCACHE;
-  // Use default Size
-  Data = L2x0ReadReg(L2X0_AUXCTRL);
-  Aux |= Data & L2X0_AUXCTRL_WAYSIZE_MASK;
-  // Use default associativity
-  Aux |= Data & L2X0_AUXCTRL_ASSOCIATIVITY;
-  // Enabled I & D Prefetch
-  Aux |= L2x0_AUXCTRL_IPREFETCH | L2x0_AUXCTRL_DPREFETCH;
-
-  if (Revision >= 5) {
-    // Prefetch Offset Register
-    PfCtl = L2x0ReadReg(L2X0_PFCTRL);
-    // - Prefetch increment set to 0
-    // - Prefetch dropping off
-    // - Double linefills off
-    L2x0WriteReg(L2X0_PFCTRL, PfCtl);
-
-    // Power Control Register - L2X0_PWRCTRL
-    PwrCtl = L2x0ReadReg(L2X0_PWRCTRL);
-    // - Standby when idle off
-    // - Dynamic clock gating off
-    // - Nc,NC-shared dropping off
-    L2x0WriteReg(L2X0_PWRCTRL, PwrCtl);
-  }
-
-  if (Revision >= 2) {
-    L2x0WriteReg(L230_TAG_LATENCY, L2x0TagLatencies);
-    L2x0WriteReg(L230_DATA_LATENCY, L2x0DataLatencies);
-  } else {
-    // PL310 old style latency is not supported yet
-    ASSERT(0);
-  }
-
-  // Set the platform specific values
-  Aux = (Aux & L2x0AuxMask) | L2x0AuxValue;
-
-  // Write Auxiliary value
-  L2x0WriteReg(L2X0_AUXCTRL, Aux);
-
-  //
-  // Invalidate all entries in cache
-  //
-  L2x0WriteReg(L2X0_INVWAY, 0xffff);
-  // Poll cache maintenance register until invalidate operation is complete
-  while(L2x0ReadReg(L2X0_INVWAY) & 0xffff);
-
-  // Write to the Lockdown D and Lockdown I Register 9 if required
-  // - Not required
-
-  // Clear any residual raw interrupts
-  L2x0WriteReg(L2X0_INTCLEAR, 0x1FF);
-
-  // Enable the cache
-  if (CacheEnabled) {
-    L2x0WriteReg(L2X0_CTRL, L2X0_CTRL_ENABLED);
-  }
-}
diff --git a/ArmPlatformPkg/Drivers/PL310L2Cache/PL310L2CacheSec.inf b/ArmPlatformPkg/Drivers/PL310L2Cache/PL310L2CacheSec.inf
deleted file mode 100644
index 78f952a1d0c8..000000000000
--- a/ArmPlatformPkg/Drivers/PL310L2Cache/PL310L2CacheSec.inf
+++ /dev/null
@@ -1,31 +0,0 @@
-#/* @file
-#  Copyright (c) 2011, ARM Limited. All rights reserved.
-#
-#  This program and the accompanying materials
-#  are licensed and made available under the terms and conditions of the BSD License
-#  which accompanies this distribution.  The full text of the license may be found at
-#  http://opensource.org/licenses/bsd-license.php
-#
-#  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-#  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-#
-#*/
-
-[Defines]
-  INF_VERSION                    = 0x00010005
-  BASE_NAME                      = PL310L2Cache
-  FILE_GUID                      = 16ad4fe0-b5b1-11df-8cbf-0002a5d5c51b
-  MODULE_TYPE                    = SEC
-  VERSION_STRING                 = 1.0
-  LIBRARY_CLASS                  = L2X0CacheLib
-
-[Sources]
-  PL310L2Cache.c
-
-[Packages]
-  ArmPkg/ArmPkg.dec
-  ArmPlatformPkg/ArmPlatformPkg.dec
-  MdePkg/MdePkg.dec
-
-[FixedPcd]
-  gArmTokenSpaceGuid.PcdL2x0ControllerBase
diff --git a/ArmPlatformPkg/Include/Drivers/PL310L2Cache.h b/ArmPlatformPkg/Include/Drivers/PL310L2Cache.h
deleted file mode 100644
index a61099806269..000000000000
--- a/ArmPlatformPkg/Include/Drivers/PL310L2Cache.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/** @file
-*
-*  Copyright (c) 2011, ARM Limited. All rights reserved.
-*
-*  This program and the accompanying materials
-*  are licensed and made available under the terms and conditions of the BSD License
-*  which accompanies this distribution.  The full text of the license may be found at
-*  http://opensource.org/licenses/bsd-license.php
-*
-*  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-*  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-*
-**/
-
-#ifndef L2CACHELIB_H_
-#define L2CACHELIB_H_
-
-#define L2X0_CACHEID            0x000
-#define L2X0_CTRL               0x100
-#define L2X0_AUXCTRL            0x104
-#define L230_TAG_LATENCY        0x108
-#define L230_DATA_LATENCY       0x10C
-#define L2X0_INTCLEAR           0x220
-#define L2X0_CACHE_SYNC         0x730
-#define L2X0_INVWAY             0x77C
-#define L2X0_CLEAN_WAY          0x7BC
-#define L2X0_PFCTRL             0xF60
-#define L2X0_PWRCTRL            0xF80
-
-#define L2X0_CACHEID_IMPLEMENTER_ARM        0x41
-#define L2X0_CACHEID_PARTNUM_PL310          0x03
-
-#define L2X0_CTRL_ENABLED                   0x1
-#define L2X0_CTRL_DISABLED                  0x0
-
-#define L2X0_AUXCTRL_EXCLUSIVE              (1 << 12)
-#define L2X0_AUXCTRL_ASSOCIATIVITY          (1 << 16)
-#define L2X0_AUXCTRL_WAYSIZE_MASK           (3 << 17)
-#define L2X0_AUXCTRL_WAYSIZE_16KB           (1 << 17)
-#define L2X0_AUXCTRL_WAYSIZE_32KB           (2 << 17)
-#define L2X0_AUXCTRL_WAYSIZE_64KB           (3 << 17)
-#define L2X0_AUXCTRL_WAYSIZE_128KB          (4 << 17)
-#define L2X0_AUXCTRL_WAYSIZE_256KB          (5 << 17)
-#define L2X0_AUXCTRL_WAYSIZE_512KB          (6 << 17)
-#define L2X0_AUXCTRL_EM                     (1 << 20)
-#define L2X0_AUXCTRL_SHARED_OVERRIDE        (1 << 22)
-#define L2x0_AUXCTRL_AW_AWCACHE             (0 << 23)
-#define L2x0_AUXCTRL_AW_NOALLOC             (1 << 23)
-#define L2x0_AUXCTRL_AW_OVERRIDE            (2 << 23)
-#define L2X0_AUXCTRL_SBO                    (1 << 25)
-#define L2X0_AUXCTRL_NSAC                   (1 << 27)
-#define L2x0_AUXCTRL_DPREFETCH              (1 << 28)
-#define L2x0_AUXCTRL_IPREFETCH              (1 << 29)
-#define L2x0_AUXCTRL_EARLY_BRESP            (1 << 30)
-
-#define L2x0_LATENCY_1_CYCLE                 0
-#define L2x0_LATENCY_2_CYCLES                1
-#define L2x0_LATENCY_3_CYCLES                2
-#define L2x0_LATENCY_4_CYCLES                3
-#define L2x0_LATENCY_5_CYCLES                4
-#define L2x0_LATENCY_6_CYCLES                5
-#define L2x0_LATENCY_7_CYCLES                6
-#define L2x0_LATENCY_8_CYCLES                7
-
-#define PL310_LATENCIES(Write,Read,Setup)      (((Write) << 8) | ((Read) << 4) | (Setup))
-#define PL310_TAG_LATENCIES(Write,Read,Setup)  PL310_LATENCIES(Write,Read,Setup)
-#define PL310_DATA_LATENCIES(Write,Read,Setup) PL310_LATENCIES(Write,Read,Setup)
-
-VOID
-L2x0CacheInit (
-  IN  UINTN   L2x0Base,
-  IN  UINT32  L2x0TagLatencies,
-  IN  UINT32  L2x0DataLatencies,
-  IN  UINT32  L2x0AuxValue,
-  IN  UINT32  L2x0AuxMask,
-  IN  BOOLEAN CacheEnabled
-  );
-
-#endif /* L2CACHELIB_H_ */
-- 
2.11.0