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>
diff --git a/src/soc/amd/cezanne/acpi/mmio.asl b/src/soc/amd/cezanne/acpi/mmio.asl
index fa43db0..a109f53 100644
--- a/src/soc/amd/cezanne/acpi/mmio.asl
+++ b/src/soc/amd/cezanne/acpi/mmio.asl
@@ -14,11 +14,7 @@
{
Memory32Fixed (ReadWrite, ALINK_AHB_ADDRESS, 0x2000)
})
-
- Method (_STA, 0x0, NotSerialized)
- {
- Return (0x0F)
- }
+ Name (_STA, 0xb)
}
Device (GPIO)
diff --git a/src/soc/amd/glinda/acpi/mmio.asl b/src/soc/amd/glinda/acpi/mmio.asl
index 05653e5..07ff790 100644
--- a/src/soc/amd/glinda/acpi/mmio.asl
+++ b/src/soc/amd/glinda/acpi/mmio.asl
@@ -16,11 +16,7 @@
{
Memory32Fixed (ReadWrite, ALINK_AHB_ADDRESS, 0x2000)
})
-
- Method (_STA, 0x0, NotSerialized)
- {
- Return (0x0F)
- }
+ Name (_STA, 0xb)
}
Device (GPIO)
diff --git a/src/soc/amd/mendocino/acpi/mmio.asl b/src/soc/amd/mendocino/acpi/mmio.asl
index 5544016..c4acfb1 100644
--- a/src/soc/amd/mendocino/acpi/mmio.asl
+++ b/src/soc/amd/mendocino/acpi/mmio.asl
@@ -16,11 +16,7 @@
{
Memory32Fixed (ReadWrite, ALINK_AHB_ADDRESS, 0x2000)
})
-
- Method (_STA, 0x0, NotSerialized)
- {
- Return (0x0F)
- }
+ Name (_STA, 0xb)
}
Device (GPIO)
diff --git a/src/soc/amd/morgana/acpi/mmio.asl b/src/soc/amd/morgana/acpi/mmio.asl
index 51a7cbd..f52f0e8 100644
--- a/src/soc/amd/morgana/acpi/mmio.asl
+++ b/src/soc/amd/morgana/acpi/mmio.asl
@@ -16,11 +16,7 @@
{
Memory32Fixed (ReadWrite, ALINK_AHB_ADDRESS, 0x2000)
})
-
- Method (_STA, 0x0, NotSerialized)
- {
- Return (0x0F)
- }
+ Name (_STA, 0xb)
}
Device (GPIO)
diff --git a/src/soc/amd/picasso/acpi/sb_fch.asl b/src/soc/amd/picasso/acpi/sb_fch.asl
index 7ab3b17..d58e044 100644
--- a/src/soc/amd/picasso/acpi/sb_fch.asl
+++ b/src/soc/amd/picasso/acpi/sb_fch.asl
@@ -14,11 +14,7 @@
{
Memory32Fixed (ReadWrite, ALINK_AHB_ADDRESS, 0x2000)
})
-
- Method (_STA, 0x0, NotSerialized)
- {
- Return (0x0F)
- }
+ Name (_STA, 0xb)
}
Device (GPIO)
diff --git a/src/soc/amd/stoneyridge/acpi/sb_fch.asl b/src/soc/amd/stoneyridge/acpi/sb_fch.asl
index 212a111..d7490d7 100644
--- a/src/soc/amd/stoneyridge/acpi/sb_fch.asl
+++ b/src/soc/amd/stoneyridge/acpi/sb_fch.asl
@@ -12,11 +12,7 @@
{
Memory32Fixed (ReadWrite, ALINK_AHB_ADDRESS, 0x2000)
})
-
- Method (_STA, 0x0, NotSerialized)
- {
- Return (0x0F)
- }
+ Name (_STA, 0xb)
}
Device (GPIO)