diff options
| -rw-r--r-- | src/mainboard/pcengines/apu2/mainboard.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/mainboard/pcengines/apu2/mainboard.c b/src/mainboard/pcengines/apu2/mainboard.c index 742135571a..d2ab63822b 100644 --- a/src/mainboard/pcengines/apu2/mainboard.c +++ b/src/mainboard/pcengines/apu2/mainboard.c @@ -191,6 +191,38 @@ static void mainboard_enable(device_t dev) } /* + * We will stuff a modified version of the first NICs (BDF 1:0.0) MAC address + * into the smbios serial number location. + */ +const char *smbios_mainboard_serial_number(void) +{ + static char serial[10]; + device_t nic_dev; + uintptr_t bar10; + u32 mac_addr = 0; + int i; + + nic_dev = dev_find_slot(1, PCI_DEVFN(0, 0)); + if ((serial[0] != 0) || !nic_dev) + return serial; + + /* Read in the last 3 bytes of NIC's MAC address. */ + bar10 = pci_read_config32(nic_dev, 0x10); + bar10 &= 0xFFFE0000; + bar10 += 0x5400; + for (i = 3; i < 6; i++) { + mac_addr <<= 8; + mac_addr |= read8((u8 *)bar10 + i); + } + mac_addr &= 0x00FFFFFF; + mac_addr /= 4; + mac_addr -= 64; + + snprintf(serial, sizeof(serial), "%d", mac_addr); + return serial; +} + +/* * We will stuff the memory size into the smbios sku location. */ const char *smbios_mainboard_sku(void) |