Morgan Jang has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/37545 )
Change subject: rc/soc/intel/fsp_broadwell_de/acpi: Support Linux GPIO driver for Monolake platform ......................................................................
rc/soc/intel/fsp_broadwell_de/acpi: Support Linux GPIO driver for Monolake platform
TEST=Test with the Linux Kernel that enables GPIO sysfs interface, Intel ICH GPIO and Intel Lynxpoint GPIO support in kernel config.
Change-Id: I6387faed4dc97c9efc130aa3ade4754118edc8b8 Signed-off-by: Morgan Jang Morgan_Jang@wiwynn.com --- M src/soc/intel/fsp_broadwell_de/acpi.c A src/soc/intel/fsp_broadwell_de/acpi/gpio.asl M src/soc/intel/fsp_broadwell_de/acpi/lpc.asl 3 files changed, 162 insertions(+), 2 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/45/37545/1
diff --git a/src/soc/intel/fsp_broadwell_de/acpi.c b/src/soc/intel/fsp_broadwell_de/acpi.c index 5349c30..0ba9159 100644 --- a/src/soc/intel/fsp_broadwell_de/acpi.c +++ b/src/soc/intel/fsp_broadwell_de/acpi.c @@ -117,7 +117,7 @@ unsigned long acpi_fill_mcfg(unsigned long current) { current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *)current, - MCFG_BASE_ADDRESS, 0, 0, 255); + MCFG_BASE_ADDRESS, 0, 0, 255); return current; }
@@ -532,7 +532,7 @@
irqovr = (void *)current; current += acpi_create_madt_irqoverride(irqovr, 0, sci_irq, sci_irq, - sci_flags); + sci_flags);
return current; } diff --git a/src/soc/intel/fsp_broadwell_de/acpi/gpio.asl b/src/soc/intel/fsp_broadwell_de/acpi/gpio.asl new file mode 100644 index 0000000..d1132d4 --- /dev/null +++ b/src/soc/intel/fsp_broadwell_de/acpi/gpio.asl @@ -0,0 +1,133 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2014 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +Device (GPIO) +{ + // GPIO Controller + Method (_HID) + { + // LynxPoint-LP + Return ("INT33C7") + } + Name (_UID, 1) + + Name (RBUF, ResourceTemplate() + { + DWordIo (ResourceProducer, + MinFixed, // IsMinFixed + MaxFixed, // IsMaxFixed + PosDecode, // Decode + EntireRange, // ISARanges + 0x00000000, // AddressGranularity + 0x00000000, // AddressMinimum + 0x00000000, // AddressMaximum + 0x00000000, // AddressTranslation + 0x00000000, // RangeLength + , // ResourceSourceIndex + , // ResourceSource + BAR0) + // Disabled due to IRQ storm: http://crosbug.com/p/29548 + //Interrupt (ResourceConsumer, + // Level, ActiveHigh, Shared, , , ) {14} + }) + + Method (_CRS, 0, NotSerialized) + { + CreateDwordField (^RBUF, ^BAR0._MIN, BMIN) + CreateDwordField (^RBUF, ^BAR0._MAX, BMAX) + CreateDwordField (^RBUF, ^BAR0._LEN, BLEN) + + Store (GPIO_BASE_SIZE, BLEN) + Store (GPIO_BASE_ADDRESS, BMIN) + Store (Subtract (Add (GPIO_BASE_ADDRESS, + GPIO_BASE_SIZE), 1), BMAX) + + Return (RBUF) + } + + Method (_STA, 0, NotSerialized) + { + Return (0xF) + } + + // GWAK: Setup GPIO as ACPI GPE for Wake + // Arg0: GPIO Number + Method (GWAK, 1, Serialized) + { + // Local0 = GPIO Base Address + Store (And (GPBS, Not(0x1)), Local0) + + // Local1 = BANK, Local2 = OFFSET + Divide (Arg0, 32, Local2, Local1) + + // + // Set OWNER to ACPI + // + + // Local3 = GPIOBASE + GPIO_OWN(BANK) + Store (Add (Local0, Multiply (Local1, 0x4)), Local3) + + // GPIO_OWN(BANK) + OperationRegion (IOWN, SystemIO, Local3, 4) + Field (IOWN, AnyAcc, NoLock, Preserve) { + GOWN, 32, + } + + // GPIO_OWN[GPIO] = 0 (ACPI) + Store (And (GOWN, Not (ShiftLeft (0x1, Local2))), GOWN) + + // + // Set ROUTE to SCI + // + + // Local3 = GPIOBASE + GPIO_ROUTE(BANK) + Store (Add (Add (Local0, 0x30), Multiply (Local1, 0x4)), Local3) + + // GPIO_ROUTE(BANK) + OperationRegion (IROU, SystemIO, Local3, 4) + Field (IROU, AnyAcc, NoLock, Preserve) { + GROU, 32, + } + + // GPIO_ROUTE[GPIO] = 0 (SCI) + Store (And (GROU, Not (ShiftLeft (0x1, Local2))), GROU) + + // + // Set GPnCONFIG to GPIO|INPUT|INVERT + // + + // Local3 = GPIOBASE + GPnCONFIG0(GPIO) + Store (Add (Add (Local0, 0x100), Multiply (Arg0, 0x8)), Local3) + + // GPnCONFIG(GPIO) + OperationRegion (GPNC, SystemIO, Local3, 8) + Field (GPNC, AnyAcc, NoLock, Preserve) { + GMOD, 1, // MODE: 0=NATIVE 1=GPIO + , 1, + GIOS, 1, // IO_SEL: 0=OUTPUT 1=INPUT + GINV, 1, // INVERT: 0=NORMAL 1=INVERT + GLES, 1, // LxEB: 0=EDGE 1=LEVEL + , 24, + ILVL, 1, // INPUT: 0=LOW 1=HIGH + OLVL, 1, // OUTPUT: 0=LOW 1=HIGH + GPWP, 2, // PULLUP: 00=NONE 01=DOWN 10=UP 11=INVALID + ISEN, 1, // SENSE: 0=ENABLE 1=DISABLE + } + + Store (0x1, GMOD) // GPIO + Store (0x1, GIOS) // INPUT + Store (0x1, GINV) // INVERT + } +} diff --git a/src/soc/intel/fsp_broadwell_de/acpi/lpc.asl b/src/soc/intel/fsp_broadwell_de/acpi/lpc.asl index ef1e655..24da73e 100644 --- a/src/soc/intel/fsp_broadwell_de/acpi/lpc.asl +++ b/src/soc/intel/fsp_broadwell_de/acpi/lpc.asl @@ -23,6 +23,31 @@
#include "irqlinks.asl"
+ OperationRegion(LPC0, PCI_Config, 0x00, 0x100) + Field (LPC0, AnyAcc, NoLock, Preserve) + { + Offset (0x02), + PDID, 16, // Device ID + Offset (0x40), + PMBS, 16, // PMBASE + Offset (0x48), + GPBS, 16, // GPIOBASE + Offset (0x60), // Interrupt Routing Registers + PRTA, 8, + PRTB, 8, + PRTC, 8, + PRTD, 8, + Offset (0x68), + PRTE, 8, + PRTF, 8, + PRTG, 8, + PRTH, 8, + + Offset (0x80), // IO Decode Ranges + IOD0, 8, + IOD1, 8, + } + Device (FWH) // Firmware Hub { Name (_HID, EISAID("INT0800")) @@ -89,4 +114,6 @@ IRQNoFlags() {0} }) } + + #include "gpio.asl" }