diff options
Diffstat (limited to 'src/soc/intel/fsp_broadwell_de/southcluster.c')
| -rw-r--r-- | src/soc/intel/fsp_broadwell_de/southcluster.c | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/src/soc/intel/fsp_broadwell_de/southcluster.c b/src/soc/intel/fsp_broadwell_de/southcluster.c index 599b8c5e7f..cb52e56e8a 100644 --- a/src/soc/intel/fsp_broadwell_de/southcluster.c +++ b/src/soc/intel/fsp_broadwell_de/southcluster.c @@ -33,6 +33,7 @@ #include <soc/pci_devs.h> #include <soc/ramstage.h> #include <soc/acpi.h> +#include <soc/ubox.h> #include "chip.h" typedef struct soc_intel_fsp_broadwell_de_config config_t; @@ -250,12 +251,25 @@ void southcluster_enable_dev(struct device *dev) { uint32_t reg32; - if (!dev->enabled) { - int slot = PCI_SLOT(dev->path.pci.devfn); - int func = PCI_FUNC(dev->path.pci.devfn); - printk(BIOS_DEBUG, "%s: Disabling device: %02x.%01x\n", - dev_path(dev), slot, func); + if (dev->enabled) + return; + const int slot = PCI_SLOT(dev->path.pci.devfn); + const int func = PCI_FUNC(dev->path.pci.devfn); + + switch (slot) { + case PCIE_IIO_PORT_0_DEV: + die("should not hide PCH link"); + case PCIE_IIO_PORT_1_DEV: /* fallthrough */ + case PCIE_IIO_PORT_2_DEV: /* fallthrough */ + case PCIE_IIO_PORT_3_DEV: /* fallthrough */ + printk(BIOS_DEBUG, "%s: Disabling IOU bridge %02x.%01x\n", dev_path(dev), slot, + func); + iio_hide(slot, func); + break; + default: + printk(BIOS_DEBUG, "%s: Disabling device: %02x.%01x\n", dev_path(dev), slot, + func); /* Ensure memory, io, and bus master are all disabled */ reg32 = pci_read_config32(dev, PCI_COMMAND); reg32 &= ~(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO); |