1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * Copyright (C) 2007-2009 coresystems GmbH
4 * Copyright (C) 2013 Google Inc.
5 * Copyright (C) 2016 Bin Meng <bmeng.cn@gmail.com>
6 *
7 * Modified from coreboot src/soc/intel/baytrail/acpi/lpc.asl
8 */
9
10/* Intel LPC Bus Device - 0:1f.0 */
11
12Scope (\)
13{
14	/* Intel Legacy Block */
15	OperationRegion(ILBS, SystemMemory, ILB_BASE_ADDRESS, ILB_BASE_SIZE)
16	Field(ILBS, AnyAcc, NoLock, Preserve) {
17		Offset (0x8),
18		PRTA, 8,
19		PRTB, 8,
20		PRTC, 8,
21		PRTD, 8,
22		PRTE, 8,
23		PRTF, 8,
24		PRTG, 8,
25		PRTH, 8,
26		Offset (0x88),
27		    , 3,
28		UI3E, 1,
29		UI4E, 1
30	}
31}
32
33Device (LPCB)
34{
35	Name(_ADR, 0x001f0000)
36
37	OperationRegion(LPC0, PCI_Config, 0x00, 0x100)
38	Field(LPC0, AnyAcc, NoLock, Preserve) {
39		Offset(0x08),
40		SRID, 8,
41		Offset(0x80),
42		C1EN, 1,
43		Offset(0x84)
44	}
45
46	#include <asm/acpi/irqlinks.asl>
47
48	/* Firmware Hub */
49	Device (FWH)
50	{
51		Name(_HID, EISAID("INT0800"))
52		Name(_CRS, ResourceTemplate()
53		{
54			Memory32Fixed(ReadOnly, 0xff000000, 0x01000000)
55		})
56	}
57
58	/* 8259 Interrupt Controller */
59	Device (PIC)
60	{
61		Name(_HID, EISAID("PNP0000"))
62		Name(_CRS, ResourceTemplate()
63		{
64			IO(Decode16, 0x20, 0x20, 0x01, 0x02)
65			IO(Decode16, 0x24, 0x24, 0x01, 0x02)
66			IO(Decode16, 0x28, 0x28, 0x01, 0x02)
67			IO(Decode16, 0x2c, 0x2c, 0x01, 0x02)
68			IO(Decode16, 0x30, 0x30, 0x01, 0x02)
69			IO(Decode16, 0x34, 0x34, 0x01, 0x02)
70			IO(Decode16, 0x38, 0x38, 0x01, 0x02)
71			IO(Decode16, 0x3c, 0x3c, 0x01, 0x02)
72			IO(Decode16, 0xa0, 0xa0, 0x01, 0x02)
73			IO(Decode16, 0xa4, 0xa4, 0x01, 0x02)
74			IO(Decode16, 0xa8, 0xa8, 0x01, 0x02)
75			IO(Decode16, 0xac, 0xac, 0x01, 0x02)
76			IO(Decode16, 0xb0, 0xb0, 0x01, 0x02)
77			IO(Decode16, 0xb4, 0xb4, 0x01, 0x02)
78			IO(Decode16, 0xb8, 0xb8, 0x01, 0x02)
79			IO(Decode16, 0xbc, 0xbc, 0x01, 0x02)
80			IO(Decode16, 0x4d0, 0x4d0, 0x01, 0x02)
81			IRQNoFlags () { 2 }
82		})
83	}
84
85	/* 8254 timer */
86	Device (TIMR)
87	{
88		Name(_HID, EISAID("PNP0100"))
89		Name(_CRS, ResourceTemplate()
90		{
91			IO(Decode16, 0x40, 0x40, 0x01, 0x04)
92			IO(Decode16, 0x50, 0x50, 0x10, 0x04)
93			IRQNoFlags() { 0 }
94		})
95	}
96
97	/* HPET */
98	Device (HPET)
99	{
100		Name(_HID, EISAID("PNP0103"))
101		Name(_CID, 0x010CD041)
102		Name(_CRS, ResourceTemplate()
103		{
104			Memory32Fixed(ReadOnly, HPET_BASE_ADDRESS, HPET_BASE_SIZE)
105		})
106
107		Method(_STA)
108		{
109			Return (STA_VISIBLE)
110		}
111	}
112
113	/* Internal UART */
114	Device (IURT)
115	{
116		Name(_HID, EISAID("PNP0501"))
117		Name(_UID, 1)
118
119		Method(_STA, 0, Serialized)
120		{
121			If (LEqual(IURE, 1)) {
122				Store(1, UI3E)
123				Store(1, UI4E)
124				Store(1, C1EN)
125				Return (STA_VISIBLE)
126			} Else {
127				Return (STA_MISSING)
128			}
129
130		}
131
132		Method(_DIS, 0, Serialized)
133		{
134			Store(0, UI3E)
135			Store(0, UI4E)
136			Store(0, C1EN)
137		}
138
139		Name(BUF0, ResourceTemplate()
140		{
141			IO(Decode16, 0x03f8, 0x03f8, 0x01, 0x08)
142			IRQNoFlags() { 3 }
143		})
144
145		Name(BUF1, ResourceTemplate()
146		{
147			IO(Decode16, 0x03f8, 0x03f8, 0x01, 0x08)
148			IRQNoFlags() { 4 }
149		})
150
151		Method(_CRS, 0, Serialized)
152		{
153			If (LLessEqual(SRID, 0x04)) {
154				Return (BUF0)
155			} Else {
156				Return (BUF1)
157			}
158		}
159	}
160
161	/* Real Time Clock */
162	Device (RTC)
163	{
164		Name(_HID, EISAID("PNP0B00"))
165		Name(_CRS, ResourceTemplate()
166		{
167			IO(Decode16, 0x70, 0x70, 1, 8)
168			/*
169			 * Disable as Windows doesn't like it, and systems
170			 * don't seem to use it
171			 */
172			/* IRQNoFlags() { 8 } */
173		})
174	}
175
176	/* LPC device: Resource consumption */
177	Device (LDRC)
178	{
179		Name(_HID, EISAID("PNP0C02"))
180		Name(_UID, 2)
181
182		Name(RBUF, ResourceTemplate()
183		{
184			IO(Decode16, 0x61, 0x61, 0x1, 0x01) /* NMI Status */
185			IO(Decode16, 0x63, 0x63, 0x1, 0x01) /* CPU Reserved */
186			IO(Decode16, 0x65, 0x65, 0x1, 0x01) /* CPU Reserved */
187			IO(Decode16, 0x67, 0x67, 0x1, 0x01) /* CPU Reserved */
188			IO(Decode16, 0x80, 0x80, 0x1, 0x01) /* Port 80 Post */
189			IO(Decode16, 0x92, 0x92, 0x1, 0x01) /* CPU Reserved */
190			IO(Decode16, 0xb2, 0xb2, 0x1, 0x02) /* SWSMI */
191		})
192
193		Method(_CRS, 0, NotSerialized)
194		{
195			Return (RBUF)
196		}
197	}
198}
199