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>

2 files changed, 57 insertions, 0 deletions

diff --git a/src/drivers/broadcom/Makefile.inc b/src/drivers/broadcom/Makefile.inc
new file mode 100644
index 0000000000..88433d291f
--- /dev/null
+++ b/src/drivers/broadcom/Makefile.inc
@@ -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
diff --git a/src/drivers/broadcom/bcm57xx_aspm_disable.c b/src/drivers/broadcom/bcm57xx_aspm_disable.c
new file mode 100644
index 0000000000..427ba623a2
--- /dev/null
+++ b/src/drivers/broadcom/bcm57xx_aspm_disable.c
@@ -0,0 +1,43 @@
+/*
+ * 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,
+};