From 01bf599ea86abb360b0a57b892484dbb9c3ba387 Mon Sep 17 00:00:00 2001 From: Kyösti Mälkki Date: Mon, 16 Jan 2017 19:50:28 +0200 Subject: pcengines/apu2: Add serial number in SMBIOS MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Change-Id: Ic8149b1dd19d70935e00881cffa7ead0960d1c78 Signed-off-by: Kyösti Mälkki Reviewed-on: https://review.coreboot.org/18154 Tested-by: build bot (Jenkins) Reviewed-by: Piotr Król --- src/mainboard/pcengines/apu2/mainboard.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) 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 @@ -190,6 +190,38 @@ static void mainboard_enable(device_t dev) pirq_setup(); } +/* + * 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. */ -- cgit v1.2.3