diff options
Diffstat (limited to 'src/soc/intel/fsp_broadwell_de/vtd.c')
| -rw-r--r-- | src/soc/intel/fsp_broadwell_de/vtd.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/soc/intel/fsp_broadwell_de/vtd.c b/src/soc/intel/fsp_broadwell_de/vtd.c index 318927ab80..9e03e9ba6a 100644 --- a/src/soc/intel/fsp_broadwell_de/vtd.c +++ b/src/soc/intel/fsp_broadwell_de/vtd.c @@ -18,8 +18,10 @@ #include <device/pci_ids.h> #include <soc/pci_devs.h> #include <soc/acpi.h> +#include <soc/vtd.h> #include <soc/broadwell_de.h> +#if ENV_RAMSTAGE static void vtd_read_resources(struct device *dev) { @@ -44,3 +46,14 @@ static const struct pci_driver vtd_driver __pci_driver = { .vendor = PCI_VENDOR_ID_INTEL, .device = VTD_DEVID, }; + +#endif + +uint8_t get_busno1(void) +{ + uint32_t reg32; + + /* Figure out what bus number is assigned for CPUBUSNO(1) */ + reg32 = pci_mmio_read_config32(VTD_PCI_DEV, VTD_CPUBUSNO); + return ((reg32 >> VTD_CPUBUSNO_BUS1_SHIFT) & VTD_CPUBUSNO_BUS1_MASK); +} |