diff options
Diffstat (limited to 'src/mainboard/siemens/mc_tcu3/mainboard.c')
| -rw-r--r-- | src/mainboard/siemens/mc_tcu3/mainboard.c | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/src/mainboard/siemens/mc_tcu3/mainboard.c b/src/mainboard/siemens/mc_tcu3/mainboard.c index 8a966dcc84..e9c29a07b5 100644 --- a/src/mainboard/siemens/mc_tcu3/mainboard.c +++ b/src/mainboard/siemens/mc_tcu3/mainboard.c @@ -29,9 +29,47 @@ #include <arch/io.h> #include <arch/interrupt.h> #include <boot/coreboot_tables.h> - +#include <hwilib.h> #include "lcd_panel.h" + +/** \brief This function will search for a MAC address which can be assigned + * to a MACPHY. + * @param pci_bdf Bus, device and function of the given PCI-device + * @param mac buffer where to store the MAC address + * @return cb_err CB_ERR or CB_SUCCESS + */ +enum cb_err mainboard_get_mac_address(u16 bus, u8 devfn, u8 mac[6]) +{ + uint8_t mac_adr[6]; + u32 i; + + /* Open main hwinfo block */ + if (hwilib_find_blocks("hwinfo.hex") != CB_SUCCESS) + return CB_ERR; + /* Get first MAC address from hwinfo. */ + if (hwilib_get_field(Mac1, mac_adr, sizeof(mac_adr)) != sizeof(mac_adr)) + return CB_ERR; + /* Ensure the first MAC-Address is not completely 0x00 or 0xff */ + for (i = 0; i < 6; i++) { + if (mac_adr[i] != 0xFF) + break; + } + if (i == 6){ + return CB_ERR; + } + for (i = 0; i < 6; i++) { + if (mac_adr[i] != 0x00) + break; + } + if (i == 6){ + return CB_ERR; + } else { + memcpy(mac, mac_adr, 6); + return CB_SUCCESS; + } +} + /* * mainboard_enable is executed as first thing after enumerate_buses(). * This is the earliest point to add customization. |