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ArmPlatformPkg: remove unused PL310 driver

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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: Leif Lindholm <leif.lindholm@linaro.org>
This commit is contained in:
Ard Biesheuvel
2017-11-15 14:39:30 +00:00
parent 1bf597d052
commit cbfe0ee492
3 changed files with 0 additions and 236 deletions
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126
ArmPlatformPkg/Drivers/PL310L2Cache/PL310L2Cache.c
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@@ -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);
}
}

31
ArmPlatformPkg/Drivers/PL310L2Cache/PL310L2CacheSec.inf
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@@ -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