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51 lines
1.6 KiB
Plaintext
51 lines
1.6 KiB
Plaintext
/*
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* Intel ACPI Component Architecture
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* AML/ASL+ Disassembler version 20190215 (64-bit version)
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* Copyright (c) 2000 - 2019 Intel Corporation
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*
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* Disassembling to symbolic ASL+ operators
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*
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* Disassembly of iASL8AmXq4.aml, Tue Apr 16 22:05:03 2019
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*
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* Original Table Header:
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* Signature "SSDT"
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* Length 0x0000005E (94)
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* Revision 0x02
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* Checksum 0x8F
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* OEM ID "APPLE "
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* OEM Table ID "EHCx_OFF"
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* OEM Revision 0x00001000 (4096)
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* Compiler ID "INTL"
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* Compiler Version 0x20190215 (538509845)
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*/
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DefinitionBlock ("", "SSDT", 2, "APPLE ", "EHCx_OFF", 0x00001000)
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{
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Scope (\)
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{
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OperationRegion (RCRG, SystemMemory, 0xFED1F418, One)
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Field (RCRG, DWordAcc, Lock, Preserve)
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{
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, 13,
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EH2D, 1,
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, 1,
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EH1D, 1
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}
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Method (_INI, 0, NotSerialized) // _INI: Initialize
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{
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EH1D = One // Disable EHC1
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EH2D = One // Disable EHC2
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}
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}
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}
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// Attention!
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// Only for 7,8,9-series chipsets and 10.11 and newer!
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//
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// To disable EHC1 and EHC2 - set an option "XHCI Mode" to "Enabled" in yours BIOS.
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// If the "XHCI Mode" option is not available in yours BIOS or works incorrectly, then use this ACPI table.
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// Disabling through BIOS is preferable whenever possible.
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//
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// Note: for 7-series you need to use either "EH1D = One" or "EH2D = One" but not both!
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// This is because only one of the devices (EHC1 or EHC2) is used by macOS. Check the IOReg.
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