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Diffstat (limited to 'payloads/libpayload/drivers/pci.c')
| -rw-r--r-- | payloads/libpayload/drivers/pci.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/payloads/libpayload/drivers/pci.c b/payloads/libpayload/drivers/pci.c index fc1940afbc..be92613e88 100644 --- a/payloads/libpayload/drivers/pci.c +++ b/payloads/libpayload/drivers/pci.c @@ -112,3 +112,11 @@ u32 pci_read_resource(pcidev_t dev, int bar) { return pci_read_config32(dev, 0x10 + (bar * 4)); } + +void pci_set_bus_master(pcidev_t dev) +{ + u16 val = pci_read_config16(dev, REG_COMMAND); + val |= REG_COMMAND_BM; + pci_write_config16(dev, REG_COMMAND, val); +} + |