diff options
Diffstat (limited to 'arch/x86/include/asm/arch-baytrail/acpi/lpc.asl')
| -rw-r--r-- | arch/x86/include/asm/arch-baytrail/acpi/lpc.asl | 202 |
1 files changed, 202 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..22f0d68f4d --- /dev/null +++ b/arch/x86/include/asm/arch-baytrail/acpi/lpc.asl @@ -0,0 +1,202 @@ +/* + * 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 */ + +Scope (\) +{ + /* Intel Legacy Block */ + OperationRegion(ILBS, SystemMemory, ILB_BASE_ADDRESS, ILB_BASE_SIZE) + Field(ILBS, AnyAcc, NoLock, Preserve) { + Offset (0x8), + PRTA, 8, + PRTB, 8, + PRTC, 8, + PRTD, 8, + PRTE, 8, + PRTF, 8, + PRTG, 8, + PRTH, 8, + Offset (0x88), + , 3, + UI3E, 1, + UI4E, 1 + } +} + +Device (LPCB) +{ + Name(_ADR, 0x001f0000) + + OperationRegion(LPC0, PCI_Config, 0x00, 0x100) + Field(LPC0, AnyAcc, NoLock, Preserve) { + Offset(0x08), + SRID, 8, + Offset(0x80), + C1EN, 1, + Offset(0x84) + } + + #include <asm/acpi/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) + } + } + + /* Internal UART */ + Device (IURT) + { + Name(_HID, EISAID("PNP0501")) + Name(_UID, 1) + + Method(_STA, 0, Serialized) + { + /* + * TODO: + * + * Need to hide the internal UART depending on whether + * internal UART is enabled or not so that external + * SuperIO UART can be exposed to system. + */ + Store(1, UI3E) + Store(1, UI4E) + Store(1, C1EN) + Return (STA_VISIBLE) + + } + + Method(_DIS, 0, Serialized) + { + Store(0, UI3E) + Store(0, UI4E) + Store(0, C1EN) + } + + Method(_CRS, 0, Serialized) + { + Name(BUF0, ResourceTemplate() + { + IO(Decode16, 0x03f8, 0x03f8, 0x01, 0x08) + IRQNoFlags() { 3 } + }) + + Name(BUF1, ResourceTemplate() + { + IO(Decode16, 0x03f8, 0x03f8, 0x01, 0x08) + IRQNoFlags() { 4 } + }) + + If (LLessEqual(SRID, 0x04)) { + Return (BUF0) + } Else { + Return (BUF1) + } + } + } + + /* 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) + } + } +} |
