diff options
| author | Felix Held <felix-coreboot@felixheld.de> | 2022-10-28 19:25:53 +0200 |
|---|---|---|
| committer | Martin L Roth <gaumless@gmail.com> | 2022-10-29 22:49:33 +0000 |
| commit | 396fb3db74db75d2cace0d9942d9b4ed49a7e497 (patch) | |
| tree | ec085aef3a57095027ad8accb6d71d9ccab59400 /src/soc/amd/picasso/acpi/sb_fch.asl | |
| parent | a6e60f043bc626eac58074a6b64ef04f00071f96 (diff) | |
soc/amd/*/acpi/mmio.asl,sb_fch.asl: hide AAHB device
Don't set bit 2 in _STA in order for Windows not to show a warning about
an unknown device in the device manager for this device. Since the _STA
object just returns a constant, a name definition can be used instead of
a method definition.
TEST=The unknown device with device instance path ACPI\AAHB0000\0
disappeared from the device manager in Windows 10 build 19045 on a
Mandolin board with a Picasso APU.
Just shutting down and then booting it again won't clear some internal
state in Windows, so a reboot is needed instead for the change to become
visible.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I8cb1712756c3623cc3ea16210af69cde0fa18f62
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68961
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Diffstat (limited to 'src/soc/amd/picasso/acpi/sb_fch.asl')
| -rw-r--r-- | src/soc/amd/picasso/acpi/sb_fch.asl | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/src/soc/amd/picasso/acpi/sb_fch.asl b/src/soc/amd/picasso/acpi/sb_fch.asl index 7ab3b17fcb..d58e044882 100644 --- a/src/soc/amd/picasso/acpi/sb_fch.asl +++ b/src/soc/amd/picasso/acpi/sb_fch.asl @@ -14,11 +14,7 @@ Device (AAHB) { Memory32Fixed (ReadWrite, ALINK_AHB_ADDRESS, 0x2000) }) - - Method (_STA, 0x0, NotSerialized) - { - Return (0x0F) - } + Name (_STA, 0xb) } Device (GPIO) |