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drivers/broadcom: Add ASPM blacklist 

The Broadcom BCM5751 NIC on a PCIe card will make the computer hang if
ASPM gets enabled. Blacklist it.

Change-Id: I2cf8d56e9139928a6acfd1d09e47a96b9554fb06
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39193
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This commit is contained in:
Angel Pons 2020-03-02 01:48:56 +01:00 committed by Patrick Georgi
parent 8247cc3328
commit d3b4de7bea
2 changed files with 57 additions and 0 deletions
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14
src/drivers/broadcom/Makefile.inc Normal file
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@ -0,0 +1,14 @@
##
## This file is part of the coreboot project.
##
## 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_PCIEXP_ASPM) += bcm57xx_aspm_disable.c

43
src/drivers/broadcom/bcm57xx_aspm_disable.c Normal file
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/*
* This file is part of the coreboot project.
*
* 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/pci_ids.h>
static void bcm57xx_disable_aspm(struct device *const dev)
{
printk(BIOS_INFO, "bcm57xx: Disabling ASPM for %s [%04x/%04x]\n",
dev_path(dev), dev->vendor, dev->device);
dev->disable_pcie_aspm = 1;
}
static struct device_operations bcm57xx_aspm_fixup_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.enable = bcm57xx_disable_aspm,
};
static const unsigned short pci_device_ids[] = {
0x1677, /* BCM5751 */
0,
};
static const struct pci_driver bcm57xx_aspm_fixup __pci_driver = {
.ops = &bcm57xx_aspm_fixup_ops,
.vendor = PCI_VENDOR_ID_BROADCOM,
.devices = pci_device_ids,
};