u-boot/arch/x86/include/asm/acpi/irqlinks.asl

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * Copyright (C) 2007-2009 coresystems GmbH
 * Copyright (C) 2016 Bin Meng <bmeng.cn@gmail.com>
 *
 * Modified from coreboot src/soc/intel/baytrail/acpi/irqlinks.asl
 */

/*
 * Intel chipset PIRQ routing control ASL description
 *
 * The programming interface is common to most Intel chipsets. But the PRTx
 * registers may be mapped to different blocks. Some chipsets map them to LPC
 * device (00:1f:00) PCI configuration space (like TunnelCreek, Quark), while
 * some newer Atom SoCs (like BayTrail, Braswell) map them to Intel Legacy
 * Block (ILB) memory space.
 *
 * This file defines 8 PCI IRQ link devices which corresponds to 8 PIRQ lines
 * PIRQ A/B/C/D/E/F/G/H. To incorperate this file, the PRTx registers must be
 * defined somewhere else in the platform's ASL files.
 */

Device (LNKA)
{
	Name(_HID, EISAID("PNP0C0F"))
	Name(_UID, 1)

	/* Disable method */
	Method(_DIS, 0, Serialized)
	{
		Store(0x80, PRTA)
	}

	/* Possible Resource Settings for this Link */
	Name(_PRS, ResourceTemplate()
	{
		IRQ(Level, ActiveLow, Shared) { 5, 6, 7, 10, 11, 12, 14, 15 }
	})

	/* Current Resource Settings for this link */
	Method(_CRS, 0, Serialized)
	{
		Name(RTLA, ResourceTemplate()
		{
			IRQ(Level, ActiveLow, Shared) {}
		})
		CreateWordField(RTLA, 1, IRQ0)

		/* Clear the WordField */
		Store(Zero, IRQ0)

		/* Set the bit from PRTA */
		ShiftLeft(1, And(PRTA, 0x0f), IRQ0)

		Return (RTLA)
	}

	/* Set Resource Setting for this IRQ link */
	Method(_SRS, 1, Serialized)
	{
		CreateWordField(Arg0, 1, IRQ0)

		/* Which bit is set? */
		FindSetRightBit(IRQ0, Local0)

		Decrement(Local0)
		Store(Local0, PRTA)
	}

	/* Status */
	Method(_STA, 0, Serialized)
	{
		If (And(PRTA, 0x80)) {
			Return (STA_DISABLED)
		} Else {
			Return (STA_INVISIBLE)
		}
	}
}

Device (LNKB)
{
	Name(_HID, EISAID("PNP0C0F"))
	Name(_UID, 2)

	/* Disable method */
	Method(_DIS, 0, Serialized)
	{
		Store(0x80, PRTB)
	}

	/* Possible Resource Settings for this Link */
	Name(_PRS, ResourceTemplate()
	{
		IRQ(Level, ActiveLow, Shared) { 5, 6, 7, 10, 11, 12, 14, 15 }
	})

	/* Current Resource Settings for this link */
	Method(_CRS, 0, Serialized)
	{
		Name(RTLB, ResourceTemplate()
		{
			IRQ(Level, ActiveLow, Shared) {}
		})
		CreateWordField(RTLB, 1, IRQ0)

		/* Clear the WordField */
		Store(Zero, IRQ0)

		/* Set the bit from PRTB */
		ShiftLeft(1, And(PRTB, 0x0f), IRQ0)

		Return (RTLB)
	}

	/* Set Resource Setting for this IRQ link */
	Method(_SRS, 1, Serialized)
	{
		CreateWordField(Arg0, 1, IRQ0)

		/* Which bit is set? */
		FindSetRightBit(IRQ0, Local0)

		Decrement(Local0)
		Store(Local0, PRTB)
	}

	/* Status */
	Method(_STA, 0, Serialized)
	{
		If (And(PRTB, 0x80)) {
			Return (STA_DISABLED)
		} Else {
			Return (STA_INVISIBLE)
		}
	}
}

Device (LNKC)
{
	Name(_HID, EISAID("PNP0C0F"))
	Name(_UID, 3)

	/* Disable method */
	Method(_DIS, 0, Serialized)
	{
		Store(0x80, PRTC)
	}

	/* Possible Resource Settings for this Link */
	Name(_PRS, ResourceTemplate()
	{
		IRQ(Level, ActiveLow, Shared) { 5, 6, 7, 10, 11, 12, 14, 15 }
	})

	/* Current Resource Settings for this link */
	Method(_CRS, 0, Serialized)
	{
		Name(RTLC, ResourceTemplate()
		{
			IRQ(Level, ActiveLow, Shared) {}
		})
		CreateWordField(RTLC, 1, IRQ0)

		/* Clear the WordField */
		Store(Zero, IRQ0)

		/* Set the bit from PRTC */
		ShiftLeft(1, And(PRTC, 0x0f), IRQ0)

		Return (RTLC)
	}

	/* Set Resource Setting for this IRQ link */
	Method(_SRS, 1, Serialized)
	{
		CreateWordField(Arg0, 1, IRQ0)

		/* Which bit is set? */
		FindSetRightBit(IRQ0, Local0)

		Decrement(Local0)
		Store(Local0, PRTC)
	}

	/* Status */
	Method(_STA, 0, Serialized)
	{
		If (And(PRTC, 0x80)) {
			Return (STA_DISABLED)
		} Else {
			Return (STA_INVISIBLE)
		}
	}
}

Device (LNKD)
{
	Name(_HID, EISAID("PNP0C0F"))
	Name(_UID, 4)

	/* Disable method */
	Method(_DIS, 0, Serialized)
	{
		Store(0x80, PRTD)
	}

	/* Possible Resource Settings for this Link */
	Name(_PRS, ResourceTemplate()
	{
		IRQ(Level, ActiveLow, Shared) { 5, 6, 7, 10, 11, 12, 14, 15 }
	})

	/* Current Resource Settings for this link */
	Method(_CRS, 0, Serialized)
	{
		Name(RTLD, ResourceTemplate()
		{
			IRQ(Level, ActiveLow, Shared) {}
		})
		CreateWordField(RTLD, 1, IRQ0)

		/* Clear the WordField */
		Store(Zero, IRQ0)

		/* Set the bit from PRTD */
		ShiftLeft(1, And(PRTD, 0x0f), IRQ0)

		Return (RTLD)
	}

	/* Set Resource Setting for this IRQ link */
	Method(_SRS, 1, Serialized)
	{
		CreateWordField(Arg0, 1, IRQ0)

		/* Which bit is set? */
		FindSetRightBit(IRQ0, Local0)

		Decrement(Local0)
		Store(Local0, PRTD)
	}

	/* Status */
	Method(_STA, 0, Serialized)
	{
		If (And(PRTD, 0x80)) {
			Return (STA_DISABLED)
		} Else {
			Return (STA_INVISIBLE)
		}
	}
}

Device (LNKE)
{
	Name(_HID, EISAID("PNP0C0F"))
	Name(_UID, 5)

	/* Disable method */
	Method(_DIS, 0, Serialized)
	{
		Store(0x80, PRTE)
	}

	/* Possible Resource Settings for this Link */
	Name(_PRS, ResourceTemplate()
	{
		IRQ(Level, ActiveLow, Shared) { 5, 6, 7, 10, 11, 12, 14, 15 }
	})

	/* Current Resource Settings for this link */
	Method(_CRS, 0, Serialized)
	{
		Name(RTLE, ResourceTemplate()
		{
			IRQ(Level, ActiveLow, Shared) {}
		})
		CreateWordField(RTLE, 1, IRQ0)

		/* Clear the WordField */
		Store(Zero, IRQ0)

		/* Set the bit from PRTE */
		ShiftLeft(1, And(PRTE, 0x0f), IRQ0)

		Return (RTLE)
	}

	/* Set Resource Setting for this IRQ link */
	Method(_SRS, 1, Serialized)
	{
		CreateWordField(Arg0, 1, IRQ0)

		/* Which bit is set? */
		FindSetRightBit(IRQ0, Local0)

		Decrement(Local0)
		Store(Local0, PRTE)
	}

	/* Status */
	Method(_STA, 0, Serialized)
	{
		If (And(PRTE, 0x80)) {
			Return (STA_DISABLED)
		} Else {
			Return (STA_INVISIBLE)
		}
	}
}

Device (LNKF)
{
	Name(_HID, EISAID("PNP0C0F"))
	Name(_UID, 6)

	/* Disable method */
	Method(_DIS, 0, Serialized)
	{
		Store(0x80, PRTF)
	}

	/* Possible Resource Settings for this Link */
	Name(_PRS, ResourceTemplate()
	{
		IRQ(Level, ActiveLow, Shared) { 5, 6, 7, 10, 11, 12, 14, 15 }
	})

	/* Current Resource Settings for this link */
	Method(_CRS, 0, Serialized)
	{
		Name(RTLF, ResourceTemplate()
		{
			IRQ(Level, ActiveLow, Shared) {}
		})
		CreateWordField(RTLF, 1, IRQ0)

		/* Clear the WordField */
		Store(Zero, IRQ0)

		/* Set the bit from PRTF */
		ShiftLeft(1, And(PRTF, 0x0f), IRQ0)

		Return (RTLF)
	}

	/* Set Resource Setting for this IRQ link */
	Method(_SRS, 1, Serialized)
	{
		CreateWordField(Arg0, 1, IRQ0)

		/* Which bit is set? */
		FindSetRightBit(IRQ0, Local0)

		Decrement(Local0)
		Store(Local0, PRTF)
	}

	/* Status */
	Method(_STA, 0, Serialized)
	{
		If (And(PRTF, 0x80)) {
			Return (STA_DISABLED)
		} Else {
			Return (STA_INVISIBLE)
		}
	}
}

Device (LNKG)
{
	Name(_HID, EISAID("PNP0C0F"))
	Name(_UID, 7)

	/* Disable method */
	Method(_DIS, 0, Serialized)
	{
		Store(0x80, PRTG)
	}

	/* Possible Resource Settings for this Link */
	Name(_PRS, ResourceTemplate()
	{
		IRQ(Level, ActiveLow, Shared) { 5, 6, 7, 10, 11, 12, 14, 15 }
	})

	/* Current Resource Settings for this link */
	Method(_CRS, 0, Serialized)
	{
		Name(RTLG, ResourceTemplate()
		{
			IRQ(Level, ActiveLow, Shared) {}
		})
		CreateWordField(RTLG, 1, IRQ0)

		/* Clear the WordField */
		Store(Zero, IRQ0)

		/* Set the bit from PRTG */
		ShiftLeft(1, And(PRTG, 0x0f), IRQ0)

		Return (RTLG)
	}

	/* Set Resource Setting for this IRQ link */
	Method(_SRS, 1, Serialized)
	{
		CreateWordField(Arg0, 1, IRQ0)

		/* Which bit is set? */
		FindSetRightBit(IRQ0, Local0)

		Decrement(Local0)
		Store(Local0, PRTG)
	}

	/* Status */
	Method(_STA, 0, Serialized)
	{
		If (And(PRTG, 0x80)) {
			Return (STA_DISABLED)
		} Else {
			Return (STA_INVISIBLE)
		}
	}
}

Device (LNKH)
{
	Name(_HID, EISAID("PNP0C0F"))
	Name(_UID, 8)

	/* Disable method */
	Method(_DIS, 0, Serialized)
	{
		Store(0x80, PRTH)
	}

	/* Possible Resource Settings for this Link */
	Name(_PRS, ResourceTemplate()
	{
		IRQ(Level, ActiveLow, Shared) { 5, 6, 7, 10, 11, 12, 14, 15 }
	})

	/* Current Resource Settings for this link */
	Method(_CRS, 0, Serialized)
	{
		Name(RTLH, ResourceTemplate()
		{
			IRQ(Level, ActiveLow, Shared) {}
		})
		CreateWordField(RTLH, 1, IRQ0)

		/* Clear the WordField */
		Store(Zero, IRQ0)

		/* Set the bit from PRTH */
		ShiftLeft(1, And(PRTH, 0x0f), IRQ0)

		Return (RTLH)
	}

	/* Set Resource Setting for this IRQ link */
	Method(_SRS, 1, Serialized)
	{
		CreateWordField(Arg0, 1, IRQ0)

		/* Which bit is set? */
		FindSetRightBit(IRQ0, Local0)

		Decrement(Local0)
		Store(Local0, PRTH)
	}

	/* Status */
	Method(_STA, 0, Serialized)
	{
		If (And(PRTH, 0x80)) {
			Return (STA_DISABLED)
		} Else {
			Return (STA_INVISIBLE)
		}
	}
}