diff options
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/fsp_baytrail/southcluster.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/soc/intel/fsp_baytrail/southcluster.c b/src/soc/intel/fsp_baytrail/southcluster.c index 3ad692fb2a..f493d2b07d 100644 --- a/src/soc/intel/fsp_baytrail/southcluster.c +++ b/src/soc/intel/fsp_baytrail/southcluster.c @@ -208,6 +208,16 @@ static void write_pci_config_irqs(void) if (targ_dev == NULL || new_int_pin < 1) continue; + /* + * Adjust the INT routing for the PCIe root ports + * See 'Interrupt Generated for INT[A-D] Interrupts' + * Table 241 in Document Number: 538136, Rev. 3.9 + */ + if (PCI_SLOT(targ_dev->path.pci.devfn) == PCIE_DEV && + targ_dev != irq_dev) + new_int_pin = ((new_int_pin - 1 + + PCI_FUNC(targ_dev->path.pci.devfn)) % 4) + 1; + /* Get the original INT_PIN for record keeping */ original_int_pin = pci_read_config8(irq_dev, PCI_INTERRUPT_PIN); |