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coreboot-kgpe-d16/src/soc/intel/apollolake/lpc.c

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soc/apollolake: Add lpc device driver A dedicated pci device driver required for LPC devices as the legacy IO range need to be included to avoid IO resource confilict. Blindly set to 0~0x1000 to also avoid the IO resource of COMA/COMB/LPT/FDD and LPC.Without this driver system will have assertion on load RTC DXE driver in UEFI payloads. Change-Id: Icc462c159c2cf39cc1030d55acee79e73a6bfb35 Signed-off-by: Lance Zhao <lijian.zhao@intel.com> Reviewed-on: https://review.coreboot.org/13356 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Martin Roth <martinroth@google.com>
2015-11-13 03:19:41 +01:00
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2016 Intel Corp.
* (Written by Lance Zhao <lijian.zhao@intel.com> for Intel Corp.)
*
* 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; either version 2 of the License, or
* (at your option) any later version.
soc/intel: Update license headers Update all of the license headers to make sure they are compliant with coreboot's license header policy. Change-Id: I151d058615290e528d9d1738c17804f6b9cc8dce Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/14321 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2016-04-10 19:09:16 +02:00
*
* 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.
soc/apollolake: Add lpc device driver A dedicated pci device driver required for LPC devices as the legacy IO range need to be included to avoid IO resource confilict. Blindly set to 0~0x1000 to also avoid the IO resource of COMA/COMB/LPT/FDD and LPC.Without this driver system will have assertion on load RTC DXE driver in UEFI payloads. Change-Id: Icc462c159c2cf39cc1030d55acee79e73a6bfb35 Signed-off-by: Lance Zhao <lijian.zhao@intel.com> Reviewed-on: https://review.coreboot.org/13356 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Martin Roth <martinroth@google.com>
2015-11-13 03:19:41 +01:00
*/
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
soc/apollolake/acpi: Fill ACPI HPET table HPET table is required to report integrated HPET timer to kernel. Without HPET table added,Linux kernel will panic when loading timer driver. Change-Id: I7368bc29f4e03d5882dcfc4a770fa7bfbc6c26a0 Signed-off-by: Zhao, Lijian <lijian.zhao@intel.com> Reviewed-on: https://review.coreboot.org/13374 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2015-12-01 18:14:20 +01:00
#include <soc/acpi.h>
soc/apollolake: Add lpc device driver A dedicated pci device driver required for LPC devices as the legacy IO range need to be included to avoid IO resource confilict. Blindly set to 0~0x1000 to also avoid the IO resource of COMA/COMB/LPT/FDD and LPC.Without this driver system will have assertion on load RTC DXE driver in UEFI payloads. Change-Id: Icc462c159c2cf39cc1030d55acee79e73a6bfb35 Signed-off-by: Lance Zhao <lijian.zhao@intel.com> Reviewed-on: https://review.coreboot.org/13356 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Martin Roth <martinroth@google.com>
2015-11-13 03:19:41 +01:00
#include <soc/pci_ids.h>
static void soc_lpc_add_io_resources(device_t dev)
{
struct resource *res;
/* Add the default claimed legacy IO range for the LPC device. */
res = new_resource(dev, 0);
res->base = 0;
res->size = 0x1000;
res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
}
static void soc_lpc_read_resources(device_t dev)
{
/* Get the PCI resources of this device. */
pci_dev_read_resources(dev);
/* Add IO resources to LPC. */
soc_lpc_add_io_resources(dev);
}
static struct device_operations device_ops = {
.read_resources = &soc_lpc_read_resources,
.set_resources = &pci_dev_set_resources,
.enable_resources = &pci_dev_enable_resources,
soc/apollolake/acpi: Fill ACPI HPET table HPET table is required to report integrated HPET timer to kernel. Without HPET table added,Linux kernel will panic when loading timer driver. Change-Id: I7368bc29f4e03d5882dcfc4a770fa7bfbc6c26a0 Signed-off-by: Zhao, Lijian <lijian.zhao@intel.com> Reviewed-on: https://review.coreboot.org/13374 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2015-12-01 18:14:20 +01:00
.write_acpi_tables = southbridge_write_acpi_tables,
soc/apollolake: Add lpc device driver A dedicated pci device driver required for LPC devices as the legacy IO range need to be included to avoid IO resource confilict. Blindly set to 0~0x1000 to also avoid the IO resource of COMA/COMB/LPT/FDD and LPC.Without this driver system will have assertion on load RTC DXE driver in UEFI payloads. Change-Id: Icc462c159c2cf39cc1030d55acee79e73a6bfb35 Signed-off-by: Lance Zhao <lijian.zhao@intel.com> Reviewed-on: https://review.coreboot.org/13356 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Martin Roth <martinroth@google.com>
2015-11-13 03:19:41 +01:00
};
static const struct pci_driver soc_lpc __pci_driver = {
.ops = &device_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_APOLLOLAKE_LPC,
};
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