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drivers/asmedia: Add ASPM blacklist 

To be selected by mainboard Kconfig if the board hosts an ASMedia chip
that spuriously advertises ASPM features.

Change-Id: I05f9789bc14db56d2ac085f4f14047d80c3aefb5
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/25619
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Nico Huber 2017-08-31 12:28:15 +02:00 committed by Patrick Georgi
parent f7caa67ebc
commit d1a3366d56
3 changed files with 61 additions and 0 deletions
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2
src/drivers/asmedia/Kconfig Normal file
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config DRIVERS_ASMEDIA_ASPM_BLACKLIST
bool

16
src/drivers/asmedia/Makefile.inc Normal file
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##
## This file is part of the coreboot project.
##
## Copyright (C) 2018 secunet Security Networks AG
##
## 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.
##
ramstage-$(CONFIG_DRIVERS_ASMEDIA_ASPM_BLACKLIST) += aspm_blacklist.c

43
src/drivers/asmedia/aspm_blacklist.c Normal file
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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2018 secunet Security Networks AG
*
* 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>
static void disable_aspm(struct device *const dev)
{
printk(BIOS_INFO, "Disabling ASPM for %s [%04x/%04x]\n",
dev_path(dev), dev->vendor, dev->device);
dev->disable_pcie_aspm = 1;
}
static struct device_operations asmedia_noaspm_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.enable = disable_aspm,
};
static const unsigned short pci_device_ids[] = {
0x0611, /* ASM1061 SATA IDE Controller */
0
};
static const struct pci_driver asmedia_noaspm __pci_driver = {
.ops = &asmedia_noaspm_ops,
.vendor = 0x1b21,
.devices = pci_device_ids,
};