upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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80 lines
2.6 KiB
80 lines
2.6 KiB
/* CPU hotplug */
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Scope(\_SB) {
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/* Objects filled in by run-time generated SSDT */
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External(NTFY, MethodObj)
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External(CPON, PkgObj)
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/* Methods called by run-time generated SSDT Processor objects */
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Method(CPMA, 1, NotSerialized) {
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/*
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* _MAT method - create an madt apic buffer
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* Arg0 = Processor ID = Local APIC ID
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* Local0 = CPON flag for this cpu
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*/
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Store(DerefOf(Index(CPON, Arg0)), Local0)
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/* Local1 = Buffer (in madt apic form) to return */
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Store(Buffer(8) {0x00, 0x08, 0x00, 0x00, 0x00, 0, 0, 0}, Local1)
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/* Update the processor id, lapic id, and enable/disable status */
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Store(Arg0, Index(Local1, 2))
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Store(Arg0, Index(Local1, 3))
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Store(Local0, Index(Local1, 4))
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Return (Local1)
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}
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Method(CPST, 1, NotSerialized) {
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/*
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* _STA method - return ON status of cpu
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* Arg0 = Processor ID = Local APIC ID
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* Local0 = CPON flag for this cpu
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*/
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Store(DerefOf(Index(CPON, Arg0)), Local0)
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If (Local0) {
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Return (0xf)
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} Else {
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Return (0x0)
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}
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}
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Method(CPEJ, 2, NotSerialized) {
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/* _EJ0 method - eject callback */
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Sleep(200)
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}
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/* CPU hotplug notify method */
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OperationRegion(PRST, SystemIO, 0xaf00, 32)
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Field(PRST, ByteAcc, NoLock, Preserve) {
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PRS, 256
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}
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Method(PRSC, 0) {
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/* Local5 = active cpu bitmap */
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Store(PRS, Local5)
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/* Local2 = last read byte from bitmap */
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Store(Zero, Local2)
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/* Local0 = Processor ID / APIC ID iterator */
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Store(Zero, Local0)
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While (LLess(Local0, SizeOf(CPON))) {
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/* Local1 = CPON flag for this cpu */
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Store(DerefOf(Index(CPON, Local0)), Local1)
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If (And(Local0, 0x07)) {
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/* Shift down previously read bitmap byte */
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ShiftRight(Local2, 1, Local2)
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} Else {
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/* Read next byte from cpu bitmap */
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Store(DerefOf(Index(Local5, ShiftRight(Local0, 3))), Local2)
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}
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/* Local3 = active state for this cpu */
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Store(And(Local2, 1), Local3)
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If (LNotEqual(Local1, Local3)) {
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/* State change - update CPON with new state */
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Store(Local3, Index(CPON, Local0))
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/* Do CPU notify */
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If (LEqual(Local3, 1)) {
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NTFY(Local0, 1)
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} Else {
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NTFY(Local0, 3)
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}
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}
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Increment(Local0)
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}
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}
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}
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