diff options
Diffstat (limited to 'Vlv2TbltDevicePkg/PlatformDxe/ClockControl.c')
| -rw-r--r-- | Vlv2TbltDevicePkg/PlatformDxe/ClockControl.c | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/Vlv2TbltDevicePkg/PlatformDxe/ClockControl.c b/Vlv2TbltDevicePkg/PlatformDxe/ClockControl.c new file mode 100644 index 0000000000..cc6ca3c44a --- /dev/null +++ b/Vlv2TbltDevicePkg/PlatformDxe/ClockControl.c @@ -0,0 +1,207 @@ +/** @file
+
+ Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
+
+ This program and the accompanying materials are licensed and made available under
+ the terms and conditions of the BSD License that 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.
+
+
+Module Name:
+
+
+ ClockControl.c
+
+Abstract:
+
+ Sets platform/SKU specific clock routing information.
+
+
+
+--*/
+
+#include "PlatformDxe.h"
+#include <Protocol/CK505ClockPlatformInfo.h>
+
+//
+// Default clock routing informtion (All On)
+//
+EFI_CLOCK_PLATFORM_INFO mDefClockPolicy = {NULL, 0, NULL, 0, NULL, 0};
+
+//
+// Clock Settings
+//
+// Static clock table.
+// This should be used to define any clock settings that are static
+// (Always On or Always Off). Dynamic clocks should be set to enabled
+// in this table.
+//
+EFI_STATIC_SIGNALS mAtxStaticClocks[] = {
+ {SrcClk8, Enabled, All},
+ {SrcClk7, Enabled, All},
+ {SrcClk6, Enabled, All},
+ {SrcClk5, Enabled, All},
+ {SrcClk4, Enabled, All},
+ {SrcClk3, Enabled, All},
+ {SrcClk2, Enabled, All},
+ {SrcClk1, Enabled, All},
+ {SrcClk0, Enabled, All},
+ {Ref0, Enabled, All},
+ {Dot96, Enabled, All},
+ {Usb48, Enabled, All},
+ {PciClkF5, Enabled, All},
+ {PciClk0, Enabled, All},
+ {PciClk2, Enabled, All},
+ {PciClk3, Enabled, All},
+ {PciClk4, Disabled, All},
+ {Cr_B, EnabledWithSwitch, All},
+};
+
+//
+// ClockSxInfo Table
+// This is a list of clocks that need to be set to a known state when the
+// system enters S4 or S5.
+//
+EFI_STATIC_SIGNALS mAtxSxClocks[] = {
+ {SaveClockConfiguration, Disabled, All}
+};
+
+//
+// ATX settings structure
+//
+EFI_CLOCK_PLATFORM_INFO mAtxClockSettings = {
+ mAtxStaticClocks,
+ sizeof(mAtxStaticClocks) / sizeof(mAtxStaticClocks[0]),
+ mAtxSxClocks,
+ sizeof(mAtxSxClocks) / sizeof(mAtxSxClocks[0])
+};
+
+#if defined( RVP_SUPPORT ) && RVP_SUPPORT
+//
+// RVP Clock Settings
+//
+// Static clock table.
+// This should be used to define any clock settings that are static
+// (Always On or Always Off). Dynamic clocks should be set to enabled
+// in this table.
+//
+//UPSD_TBD Check with Jan if any porting required.
+//
+EFI_STATIC_SIGNALS mRvpStaticClocks[] = {
+ {SrcClk11, Enabled, All}, // Not used/not present but leave coding enabled
+ {SrcClk10, Enabled, All}, // Not used/not present but leave coding enabled
+ {SrcClk9, Enabled, All}, // Not used/not present but leave coding enabled
+ {SrcClk8, Enabled, All}, // ICHSATAII
+ {SrcClk7, Enabled, All}, // DPL_REFSSCLKIN
+ {SrcClk6, Enabled, All}, // 100M_MCH
+ {SrcClk5, Enabled, All}, // Mini-PCIe //TODO PNV: Need to check ICH GPIO38:
+ // 0: turn on; 1: turn off
+ {SrcClk4, Enabled, All}, // ICHSATA
+ {SrcClk3, Enabled, All}, // 100M_ICH
+ {SrcClk2, Enabled, All}, // 100M_LAN
+ {SrcClk1, Enabled, All}, // 25M_LAN
+ {SrcClk0, Enabled, All}, // 96M_DREF
+ {Ref0, Enabled, All},
+ {Dot96, Enabled, All},
+ {Usb48, Enabled, All},
+ {PciClkF5, Enabled, All}, // 33M_ICH
+ {PciClk0, Enabled, All}, // 33M_RISER
+ {PciClk1, Enabled, All}, // 33M_RISER
+ {PciClk2, Enabled, All}, // VDD_Clock
+ {PciClk3, Enabled, All}, // 33M_S1
+ {PciClk4, Enabled, All}, // 33M_PA
+};
+
+//
+// Dynamic clock table
+// This is used to determine if a clock should be left on or turned off based
+// on the presence of a device. The bridge information is used so the bus
+// number for the device to be detected can be found.
+//
+
+//
+// ClockSxInfo Table
+// This is a list of clocks that need to be set to a known state when the
+// system enters S4 or S5.
+//
+EFI_STATIC_SIGNALS mRvpSxClocks[] = {
+ {SaveClockConfiguration, Disabled, All}
+};
+
+//
+// RVP settings structure
+//
+EFI_CLOCK_PLATFORM_INFO mRvpClockSettings = {
+ mRvpStaticClocks,
+ sizeof(mRvpStaticClocks) / sizeof(mRvpStaticClocks[0]),
+ 0, // No clocks will be turned off mRvpDynamicClocks,
+ 0, // No clocks will be turned off sizeof(mRvpDynamicClocks) / sizeof(mRvpDynamicClocks[0]),
+ mRvpSxClocks,
+ sizeof(mRvpSxClocks) / sizeof(mRvpSxClocks[0])
+};
+#endif
+
+VOID
+InitializeClockRouting(
+ )
+{
+ EFI_STATUS Status;
+ UINTN BoardIdVarSize;
+ EFI_BOARD_FEATURES BoardIdVar;
+ EFI_CLOCK_PLATFORM_INFO *ClockPolicy;
+ EFI_HANDLE Handle;
+
+ ClockPolicy = &mDefClockPolicy;
+
+ //
+ // Do modifications based on board type
+ //
+ BoardIdVarSize = sizeof (EFI_BOARD_FEATURES);
+ Status = gRT->GetVariable (
+ BOARD_FEATURES_NAME,
+ &gEfiBoardFeaturesGuid,
+ NULL,
+ &BoardIdVarSize,
+ &BoardIdVar
+ );
+ if (!EFI_ERROR (Status)) {
+
+#if defined( RVP_SUPPORT ) && RVP_SUPPORT
+ if (BoardIdVar & B_BOARD_FEATURES_RVP) {
+ ClockPolicy = &mRvpClockSettings;
+ }
+#else
+
+ //
+ // Isolate board type information
+ //
+ BoardIdVar = BoardIdVar & (B_BOARD_FEATURES_FORM_FACTOR_ATX |
+ B_BOARD_FEATURES_FORM_FACTOR_BTX |
+ B_BOARD_FEATURES_FORM_FACTOR_MICRO_ATX |
+ B_BOARD_FEATURES_FORM_FACTOR_MICRO_BTX);
+
+ if (BoardIdVar == B_BOARD_FEATURES_FORM_FACTOR_ATX ||
+ BoardIdVar == B_BOARD_FEATURES_FORM_FACTOR_MICRO_ATX) {
+ ClockPolicy = &mAtxClockSettings;
+ }
+
+#endif
+
+ }
+
+ Handle = NULL;
+ Status = gBS->InstallProtocolInterface (
+ &Handle,
+ &gEfiCk505ClockPlatformInfoGuid,
+ EFI_NATIVE_INTERFACE,
+ ClockPolicy
+ );
+ ASSERT_EFI_ERROR(Status);
+
+}
+
+
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