diff options
Diffstat (limited to 'board/toradex/common/tdx-cfg-block.c')
| -rw-r--r-- | board/toradex/common/tdx-cfg-block.c | 42 |
1 files changed, 38 insertions, 4 deletions
diff --git a/board/toradex/common/tdx-cfg-block.c b/board/toradex/common/tdx-cfg-block.c index a74707208d..07179f5057 100644 --- a/board/toradex/common/tdx-cfg-block.c +++ b/board/toradex/common/tdx-cfg-block.c @@ -163,6 +163,42 @@ const char * const toradex_display_adapters[] = { [159] = "Verdin DSI to LVDS Adapter", }; +const u32 toradex_ouis[] = { + [0] = 0x00142dUL, + [1] = 0x8c06cbUL, +}; + +static u32 get_serial_from_mac(struct toradex_eth_addr *eth_addr) +{ + int i; + u32 oui = ntohl(eth_addr->oui) >> 8; + u32 nic = ntohl(eth_addr->nic) >> 8; + + for (i = 0; i < ARRAY_SIZE(toradex_ouis); i++) { + if (toradex_ouis[i] == oui) + break; + } + + return (u32)((i << 24) + nic); +} + +void get_mac_from_serial(u32 tdx_serial, struct toradex_eth_addr *eth_addr) +{ + u8 oui_index = tdx_serial >> 24; + u32 nic = tdx_serial & GENMASK(23, 0); + u32 oui; + + if (oui_index >= ARRAY_SIZE(toradex_ouis)) { + puts("Can't find OUI for this serial#\n"); + oui_index = 0; + } + + oui = toradex_ouis[oui_index]; + + eth_addr->oui = htonl(oui << 8); + eth_addr->nic = htonl(nic << 8); +} + #ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_MMC static int tdx_cfg_block_mmc_storage(u8 *config_block, int write) { @@ -335,8 +371,7 @@ int read_tdx_cfg_block(void) memcpy(&tdx_eth_addr, config_block + offset, 6); - /* NIC part of MAC address is serial number */ - tdx_serial = ntohl(tdx_eth_addr.nic) >> 8; + tdx_serial = get_serial_from_mac(&tdx_eth_addr); break; case TAG_HW: memcpy(&tdx_hw_tag, config_block + offset, 8); @@ -974,8 +1009,7 @@ static int do_cfgblock_create(struct cmd_tbl *cmdtp, int flag, int argc, } /* Convert serial number to MAC address (the storage format) */ - tdx_eth_addr.oui = htonl(0x00142dUL << 8); - tdx_eth_addr.nic = htonl(tdx_serial << 8); + get_mac_from_serial(tdx_serial, &tdx_eth_addr); /* Valid Tag */ write_tag(config_block, &offset, TAG_VALID, NULL, 0); |