4721f43390
Add a support for generating USB port descriptors for ACPI based
on their definition by the board in devicetree.cb. This will
generate a _UPC and _PLD for each port, using a generic _PLD by
default. The _PLD can also be customized for more accurate
descriptions if necessary.
This sample devictree.cb shows a USB 2.0 type-A port behind a root
hub connected to an xHCI controller:
device pci 14.0 on
chip drivers/usb/acpi
register "desc" = ""Root Hub""
register "type" = "UPC_TYPE_HUB"
device usb 0.0 on
chip drivers/usb/acpi
register "desc" = ""USB 2.0 Type-A""
register "type" = "UPC_TYPE_A"
device usb 2.0 on end
end
end
end
end
It will generate the following ACPI code in the SSDT:
Scope (\_SB.PCI0.XHCI.RHUB.HS01)
{
Name (_DDN, "USB 2.0 Type-A")
Name (_UPC, Package (0x04)
{
0xFF,
0x00,
Zero,
Zero
})
Name (_PLD, ToPLD (
PLD_Revision = 0x2,
PLD_IgnoreColor = 0x1,
PLD_Red = 0x0,
PLD_Green = 0x0,
PLD_Blue = 0x0,
PLD_Width = 0x0,
PLD_Height = 0x0,
PLD_UserVisible = 0x1,
PLD_Dock = 0x0,
PLD_Lid = 0x0,
PLD_Panel = "UNKNOWN",
PLD_VerticalPosition = "CENTER",
PLD_HorizontalPosition = "CENTER",
PLD_Shape = "RECTANGLE",
PLD_GroupOrientation = 0x0,
PLD_GroupToken = 0x0,
PLD_GroupPosition = 0x0,
PLD_Bay = 0x0,
PLD_Ejectable = 0x0,
PLD_EjectRequired = 0x0,
PLD_CabinetNumber = 0x0,
PLD_CardCageNumber = 0x0,
PLD_Reference = 0x0,
PLD_Rotation = 0x0,
PLD_Order = 0x0,
PLD_VerticalOffset = 0x0,
PLD_HorizontalOffset = 0x0)
)
}
Change-Id: I7024390e407fda4b195211bd4755bb5ca53b2b37
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/26173
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
4 lines
70 B
Text
4 lines
70 B
Text
config DRIVERS_USB_ACPI
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bool
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default n
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depends on HAVE_ACPI_TABLES
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