1 files changed, 121 insertions, 0 deletions
diff --git a/arch/x86/include/asm/arch-baytrail/acpi/lpc.asl b/arch/x86/include/asm/arch-baytrail/acpi/lpc.asl
new file mode 100644
index 0000000000..1dca9770c5
--- /dev/null
+++ b/arch/x86/include/asm/arch-baytrail/acpi/lpc.asl
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2007-2009 coresystems GmbH
+ * Copyright (C) 2013 Google Inc.
+ * Copyright (C) 2016 Bin Meng <bmeng.cn@gmail.com>
+ *
+ * Modified from coreboot src/soc/intel/baytrail/acpi/lpc.asl
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/* Intel LPC Bus Device - 0:1f.0 */
+
+Device (LPCB)
+{
+	Name(_ADR, 0x001f0000)
+
+	#include "irqlinks.asl"
+
+	/* Firmware Hub */
+	Device (FWH)
+	{
+		Name(_HID, EISAID("INT0800"))
+		Name(_CRS, ResourceTemplate()
+		{
+			Memory32Fixed(ReadOnly, 0xff000000, 0x01000000)
+		})
+	}
+
+	/* 8259 Interrupt Controller */
+	Device (PIC)
+	{
+		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 }
+		})
+	}
+
+	/* 8254 timer */
+	Device (TIMR)
+	{
+		Name(_HID, EISAID("PNP0100"))
+		Name(_CRS, ResourceTemplate()
+		{
+			IO(Decode16, 0x40, 0x40, 0x01, 0x04)
+			IO(Decode16, 0x50, 0x50, 0x10, 0x04)
+			IRQNoFlags() { 0 }
+		})
+	}
+
+	/* HPET */
+	Device (HPET)
+	{
+		Name(_HID, EISAID("PNP0103"))
+		Name(_CID, 0x010CD041)
+		Name(_CRS, ResourceTemplate()
+		{
+			Memory32Fixed(ReadOnly, HPET_BASE_ADDRESS, HPET_BASE_SIZE)
+		})
+
+		Method(_STA)
+		{
+			Return (STA_VISIBLE)
+		}
+	}
+
+	/* Real Time Clock */
+	Device (RTC)
+	{
+		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 } */
+		})
+	}
+
+	/* LPC device: Resource consumption */
+	Device (LDRC)
+	{
+		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)
+		}
+	}
+}