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a825da4e56
This works around bugs in APTIO V NVRAM implementation on Z390 and above. Based off multiple third-party contributions with additional debugging from https://www.hackintosh-forum.de/forum/thread/46154. Also thanks to @vandroiy2013. closes acidanthera/bugtracker#397
40 lines
1.2 KiB
Plaintext
40 lines
1.2 KiB
Plaintext
/*
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* For 300-series only and occasions where SSDT-AWAC is not applicable,
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* which requires variable STAS to be present.
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*
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* On some boards RTC device is disabled by returning 0 from _STA status method and
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* to enable it 0xF will be returned as expected by macOS.
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*/
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DefinitionBlock ("", "SSDT", 2, "ACDT", "RTC0", 0x00000000)
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{
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External (_SB_.PCI0.LPCB, DeviceObj) // (from opcode)
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Scope (_SB.PCI0.LPCB)
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{
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Device (RTC0)
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{
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Name (_HID, EisaId ("PNP0B00")) // _HID: Hardware ID
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Name (_CRS, ResourceTemplate () // _CRS: Current Resource Settings
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{
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IO (Decode16,
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0x0070, // Range Minimum
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0x0070, // Range Maximum
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0x01, // Alignment
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0x08, // Length
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)
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IRQNoFlags ()
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{8}
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})
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Method (_STA, 0, NotSerialized) // _STA: Status
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{
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If (_OSI ("Darwin")) {
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Return (0x0F)
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} Else {
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Return (0);
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}
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}
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}
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}
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}
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