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sb/intel/{bd82x6x|ibexpeak}: Drop p_cnt_throttling_supported

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The processor P_BLK doesn't support throttling. This behaviour could be
emulated with SMM, but instead just update the FADT to indicate no support
for legacy I/O based throttling using P_CNT.

We have _PTC defined in SSDT, which should be used in favour of P_CNT by
ACPI aware OS, so this change has no effect on modern OS.

Drop all occurences of p_cnt_throttling_supported and update autoport
to not generate it any more.

Change-Id: Iaf82518d5114d6de7cef01dca2d3087eea8ff927
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34351
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This commit is contained in:
Patrick Rudolph
2019-07-15 18:04:23 +02:00
committed by Patrick Rudolph
parent fa0ef81d15
commit b30a47b841
47 changed files with 8 additions and 57 deletions
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src/mainboard/google/parrot/devicetree.cb
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@@ -62,7 +62,6 @@ chip northbridge/intel/sandybridge
register "pcie_port_coalesce" = "1"
register "c2_latency" = "1"
register "p_cnt_throttling_supported" = "0"
device pci 16.0 on end # Management Engine Interface 1
device pci 16.1 off end # Management Engine Interface 2