diff options
| -rw-r--r-- | Documentation/mainboard/lenovo/t440p.md | 6 | ||||
| -rw-r--r-- | src/northbridge/intel/haswell/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/northbridge/intel/haswell/acpi/haswell.asl | 1 | ||||
| -rw-r--r-- | src/northbridge/intel/haswell/acpi/hostbridge.asl | 3 | ||||
| -rw-r--r-- | src/northbridge/intel/haswell/acpi/peg.asl | 60 | ||||
| -rw-r--r-- | src/northbridge/intel/haswell/pcie.c | 88 |
6 files changed, 154 insertions, 5 deletions
diff --git a/Documentation/mainboard/lenovo/t440p.md b/Documentation/mainboard/lenovo/t440p.md index 98c1da54ac..fb0187075c 100644 --- a/Documentation/mainboard/lenovo/t440p.md +++ b/Documentation/mainboard/lenovo/t440p.md @@ -36,10 +36,7 @@ the laptop able to power on. - Cannot get the mainboard serial number from the mainboard: the OEM UEFI firmware gets the serial number from an "emulated EEPROM" via I/O port 0x1630/0x1634, but it's still unknown how to make it work - -## Untested - -- the dGPU model +- The dGPU does not currently work in Windows. ## Working @@ -61,6 +58,7 @@ the laptop able to power on. - CMOS options: wlan, trackpoint, fn_ctrl_swap - internal flashing when IFD is unlocked - using `me_cleaner` +- dGPU (must be enabled in CMOS options) [Lenovo ThinkPad T440p]: https://pcsupport.lenovo.com/us/zh/products/laptops-and-netbooks/thinkpad-t-series-laptops/thinkpad-t440p [Hardware Maintenance Manual]: https://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles_pdf/t440p_hmm_en_sp40a25467_04.pdf diff --git a/src/northbridge/intel/haswell/Makefile.inc b/src/northbridge/intel/haswell/Makefile.inc index b9863367c9..73a20f2dfb 100644 --- a/src/northbridge/intel/haswell/Makefile.inc +++ b/src/northbridge/intel/haswell/Makefile.inc @@ -19,6 +19,7 @@ bootblock-y += bootblock.c ramstage-y += memmap.c ramstage-y += northbridge.c +ramstage-y += pcie.c ramstage-y += gma.c ramstage-y += acpi.c diff --git a/src/northbridge/intel/haswell/acpi/haswell.asl b/src/northbridge/intel/haswell/acpi/haswell.asl index 45ebff29f1..2db72d7842 100644 --- a/src/northbridge/intel/haswell/acpi/haswell.asl +++ b/src/northbridge/intel/haswell/acpi/haswell.asl @@ -16,6 +16,7 @@ #include "../haswell.h" #include "hostbridge.asl" +#include "peg.asl" #include <southbridge/intel/common/rcba.h> /* PCI Device Resource Consumption */ diff --git a/src/northbridge/intel/haswell/acpi/hostbridge.asl b/src/northbridge/intel/haswell/acpi/hostbridge.asl index 19d788ce26..d567701cb7 100644 --- a/src/northbridge/intel/haswell/acpi/hostbridge.asl +++ b/src/northbridge/intel/haswell/acpi/hostbridge.asl @@ -36,7 +36,8 @@ Device (MCHC) MHEN, 1, // Enable , 13, // MHBR, 22, // MCHBAR - + Offset (0x54), + DVEN, 32, Offset (0x60), // PCIe BAR PXEN, 1, // Enable PXSZ, 2, // BAR size diff --git a/src/northbridge/intel/haswell/acpi/peg.asl b/src/northbridge/intel/haswell/acpi/peg.asl new file mode 100644 index 0000000000..c4af375422 --- /dev/null +++ b/src/northbridge/intel/haswell/acpi/peg.asl @@ -0,0 +1,60 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2017-2018 Patrick Rudolph <siro@das-labor.org> + * + * 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 (PEGP) +{ + Name (_ADR, 0x00010000) + + Method (_STA) + { + Return (((\_SB.PCI0.MCHC.DVEN >> 3) & 1) * 0xf) + } + + Device (DEV0) + { + Name(_ADR, 0x00000000) + } +} + +Device (PEG1) +{ + Name (_ADR, 0x00010001) + + Method (_STA) + { + Return (((\_SB.PCI0.MCHC.DVEN >> 2) & 1) * 0xf) + } + + Device (DEV0) + { + Name(_ADR, 0x00000000) + } +} + +Device (PEG2) +{ + Name (_ADR, 0x00010002) + + Method (_STA) + { + Return (((\_SB.PCI0.MCHC.DVEN >> 1) & 1) * 0xf) + } + + Device (DEV0) + { + Name(_ADR, 0x00000000) + } +} diff --git a/src/northbridge/intel/haswell/pcie.c b/src/northbridge/intel/haswell/pcie.c new file mode 100644 index 0000000000..b3a21bfc3e --- /dev/null +++ b/src/northbridge/intel/haswell/pcie.c @@ -0,0 +1,88 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2017-2018 Patrick Rudolph <siro@das-labor.org> + * + * 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. + */ + +#include <console/console.h> +#include <device/device.h> +#include <device/pci.h> +#include <device/pciexp.h> +#include <device/pci_ids.h> +#include <assert.h> + +static void pcie_disable(struct device *dev) +{ + printk(BIOS_INFO, "%s: Disabling device\n", dev_path(dev)); + dev->enabled = 0; +} + +#if CONFIG(HAVE_ACPI_TABLES) +static const char *pcie_acpi_name(const struct device *dev) +{ + assert(dev); + + if (dev->path.type != DEVICE_PATH_PCI) + return NULL; + + assert(dev->bus); + if (dev->bus->secondary == 0) + switch (dev->path.pci.devfn) { + case PCI_DEVFN(1, 0): + return "PEGP"; + case PCI_DEVFN(1, 1): + return "PEG1"; + case PCI_DEVFN(1, 2): + return "PEG2"; + }; + + struct device *const port = dev->bus->dev; + assert(port); + assert(port->bus); + + if (dev->path.pci.devfn == PCI_DEVFN(0, 0) && + port->bus->secondary == 0 && + (port->path.pci.devfn == PCI_DEVFN(1, 0) || + port->path.pci.devfn == PCI_DEVFN(1, 1) || + port->path.pci.devfn == PCI_DEVFN(1, 2))) + return "DEV0"; + + return NULL; +} +#endif + +static struct pci_operations pci_ops = { + .set_subsystem = pci_dev_set_subsystem, +}; + +static struct device_operations device_ops = { + .read_resources = pci_bus_read_resources, + .set_resources = pci_dev_set_resources, + .enable_resources = pci_bus_enable_resources, + .scan_bus = pciexp_scan_bridge, + .reset_bus = pci_bus_reset, + .disable = pcie_disable, + .init = pci_dev_init, + .ops_pci = &pci_ops, +#if CONFIG(HAVE_ACPI_TABLES) + .acpi_name = pcie_acpi_name, +#endif +}; + +static const unsigned short pci_device_ids[] = { 0x0c01, 0x0c05, 0x0c09, 0x0c0d, 0 }; + +static const struct pci_driver pch_pcie __pci_driver = { + .ops = &device_ops, + .vendor = PCI_VENDOR_ID_INTEL, + .devices = pci_device_ids, +}; |