ICU (Interrupt Consolidation Unit) is a mechanism, that allows to send a message-based interrupts from the CP110 unit (South Bridge) to the Application Processor hardware block. After dispatching the interrupts in the GIC are generated.
This patch adds a basic version of the library, that allows to configure a static mapping between CP110 interfaces and GIC. It is required for the cases, where the OS does not support the ICU controller on its own (e.g. ACPI boot). Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Marcin Wojtas <m...@semihalf.com> --- Silicon/Marvell/Marvell.dec | 1 + Silicon/Marvell/Include/Library/ArmadaIcuLib.h | 45 ++++++++++++++++++++ 2 files changed, 46 insertions(+) create mode 100644 Silicon/Marvell/Include/Library/ArmadaIcuLib.h diff --git a/Silicon/Marvell/Marvell.dec b/Silicon/Marvell/Marvell.dec index 4def897..616624e 100644 --- a/Silicon/Marvell/Marvell.dec +++ b/Silicon/Marvell/Marvell.dec @@ -61,6 +61,7 @@ [LibraryClasses] ArmadaBoardDescLib|Include/Library/ArmadaBoardDescLib.h + ArmadaIcuLib|Include/Library/ArmadaIcuLib.h ArmadaSoCDescLib|Include/Library/ArmadaSoCDescLib.h SampleAtResetLib|Include/Library/SampleAtResetLib.h diff --git a/Silicon/Marvell/Include/Library/ArmadaIcuLib.h b/Silicon/Marvell/Include/Library/ArmadaIcuLib.h new file mode 100644 index 0000000..9b68934 --- /dev/null +++ b/Silicon/Marvell/Include/Library/ArmadaIcuLib.h @@ -0,0 +1,45 @@ +/** +* +* Copyright (C) 2018, Marvell International Ltd. and its affiliates +* +* 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 __ARMADA_ICU_LIB_H__ +#define __ARMADA_ICU_LIB_H__ + +typedef enum { + Level = 0, + Edge = 1 +} ICU_IRQ_TYPE; + +typedef struct { + UINTN IcuId; + UINTN SpiId; + ICU_IRQ_TYPE IrqType; +} ICU_IRQ; + +typedef struct { + const ICU_IRQ *Map; + UINTN Size; +} ICU_CONFIG_ENTRY; + +typedef struct { + ICU_CONFIG_ENTRY NonSecure; + ICU_CONFIG_ENTRY Sei; + ICU_CONFIG_ENTRY Rei; +} ICU_CONFIG; + +EFI_STATUS +EFIAPI +ArmadaIcuInitialize ( + VOID + ); + +#endif /* __ARMADA_ICU_LIB_H__ */ -- 2.7.4 _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
