src/soc/intel/baytrail/acpi/lpc.asl

/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */

// Intel LPC Bus Device  - 0:1f.0

Device (LPCB)
{
	Name(_ADR, 0x001f0000)

	#include "irqlinks.asl"

	#include "acpi/ec.asl"

	Device (DMAC)		// DMA Controller
	{
		Name(_HID, EISAID("PNP0200"))
		Name(_CRS, ResourceTemplate()
		{
			IO (Decode16, 0x00, 0x00, 0x01, 0x20)
			IO (Decode16, 0x81, 0x81, 0x01, 0x11)
			IO (Decode16, 0x93, 0x93, 0x01, 0x0d)
			IO (Decode16, 0xc0, 0xc0, 0x01, 0x20)
			DMA (Compatibility, NotBusMaster, Transfer8_16) { 4 }
		})
	}

	Device (FWH)		// Firmware Hub
	{
		Name (_HID, EISAID("INT0800"))
		Name (_CRS, ResourceTemplate()
		{
			Memory32Fixed(ReadOnly, 0xff000000, 0x01000000)
		})
	}

	Device (HPET)
	{
		Name (_HID, EISAID("PNP0103"))
		Name (_CID, 0x010CD041)

		Method (_STA, 0)	// Device Status
		{
			Return (0xf)	// Enable and show device
		}

		Name(_CRS, ResourceTemplate()
		{
			Memory32Fixed(ReadOnly, CONFIG_HPET_ADDRESS, 0x400)
		})
	}

	Device(PIC)	// 8259 Interrupt Controller
	{
		Name(_HID,EISAID("PNP0000"))
		Name(_CRS, ResourceTemplate()
		{
			IO (Decode16, 0x20, 0x20, 0x01, 0x02)
			IO (Decode16, 0x24, 0x24, 0x01, 0x02)
			IO (Decode16, 0x28, 0x28, 0x01, 0x02)
			IO (Decode16, 0x2c, 0x2c, 0x01, 0x02)
			IO (Decode16, 0x30, 0x30, 0x01, 0x02)
			IO (Decode16, 0x34, 0x34, 0x01, 0x02)
			IO (Decode16, 0x38, 0x38, 0x01, 0x02)
			IO (Decode16, 0x3c, 0x3c, 0x01, 0x02)
			IO (Decode16, 0xa0, 0xa0, 0x01, 0x02)
			IO (Decode16, 0xa4, 0xa4, 0x01, 0x02)
			IO (Decode16, 0xa8, 0xa8, 0x01, 0x02)
			IO (Decode16, 0xac, 0xac, 0x01, 0x02)
			IO (Decode16, 0xb0, 0xb0, 0x01, 0x02)
			IO (Decode16, 0xb4, 0xb4, 0x01, 0x02)
			IO (Decode16, 0xb8, 0xb8, 0x01, 0x02)
			IO (Decode16, 0xbc, 0xbc, 0x01, 0x02)
			IO (Decode16, 0x4d0, 0x4d0, 0x01, 0x02)
			IRQNoFlags () { 2 }
		})
	}

	Device(LDRC)	// LPC device: Resource consumption
	{
		Name (_HID, EISAID("PNP0C02"))
		Name (_UID, 2)

		Name (RBUF, ResourceTemplate()
		{
			IO (Decode16, 0x61, 0x61, 0x1, 0x01) // NMI Status
			IO (Decode16, 0x63, 0x63, 0x1, 0x01) // CPU Reserved
			IO (Decode16, 0x65, 0x65, 0x1, 0x01) // CPU Reserved
			IO (Decode16, 0x67, 0x67, 0x1, 0x01) // CPU Reserved
			IO (Decode16, 0x80, 0x80, 0x1, 0x01) // Port 80 Post
			IO (Decode16, 0x92, 0x92, 0x1, 0x01) // CPU Reserved
			IO (Decode16, 0xb2, 0xb2, 0x1, 0x02) // SWSMI
		})

		Method (_CRS, 0, NotSerialized)
		{
			Return (RBUF)
		}
	}

	Device (RTC)	// Real Time Clock
	{
		Name (_HID, EISAID("PNP0B00"))
		Name (_CRS, ResourceTemplate()
		{
			IO (Decode16, 0x70, 0x70, 1, 8)
// Disable as Windows doesn't like it, and systems don't seem to use it.
//			IRQNoFlags() { 8 }
		})
	}

	Device (TIMR)	// Intel 8254 timer
	{
		Name(_HID, EISAID("PNP0100"))
		Name(_CRS, ResourceTemplate()
		{
			IO (Decode16, 0x40, 0x40, 0x01, 0x04)
			IO (Decode16, 0x50, 0x50, 0x10, 0x04)
			IRQNoFlags() {0}
		})
	}

	// Include mainboard's superio.asl file.
	#include "acpi/superio.asl"
}