The MAC addresses for the PRU Ethernet ports will be available in the board EEPROM as an address range. Populate those MAC addresses (if valid) into the u-boot environment so that they can be passed on to the device tree during fdt_fixup_ethernet().
Signed-off-by: Roger Quadros rogerq@ti.com --- board/ti/am57xx/board.c | 53 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+)
diff --git a/board/ti/am57xx/board.c b/board/ti/am57xx/board.c index 67191af..18416ef 100644 --- a/board/ti/am57xx/board.c +++ b/board/ti/am57xx/board.c @@ -537,12 +537,39 @@ static struct cpsw_platform_data cpsw_data = { .version = CPSW_CTRL_VERSION_2, };
+static u64 mac_to_u64(u8 mac[6]) +{ + int i; + u64 addr = 0; + + for (i = 0; i < 6; i++) { + addr <<= 8; + addr |= mac[i]; + } + + return addr; +} + +static void u64_to_mac(u64 addr, u8 mac[6]) +{ + mac[5] = addr; + mac[4] = addr >> 8; + mac[3] = addr >> 16; + mac[2] = addr >> 24; + mac[1] = addr >> 32; + mac[0] = addr >> 40; +} + int board_eth_init(bd_t *bis) { int ret; uint8_t mac_addr[6]; uint32_t mac_hi, mac_lo; uint32_t ctrl_val; + int i; + u64 mac1, mac2; + u8 mac_addr1[6], mac_addr2[6]; + int num_macs;
/* try reading mac address from efuse */ mac_lo = readl((*ctrl)->control_core_mac_id_0_lo); @@ -583,6 +610,32 @@ int board_eth_init(bd_t *bis) if (ret < 0) printf("Error %d registering CPSW switch\n", ret);
+ /* + * Export any Ethernet MAC addresses from EEPROM. + * On AM57xx the 2 MAC addresses define the address range + */ + board_ti_get_eth_mac_addr(0, mac_addr1); + board_ti_get_eth_mac_addr(1, mac_addr2); + + if (is_valid_ethaddr(mac_addr1) && is_valid_ethaddr(mac_addr2)) { + mac1 = mac_to_u64(mac_addr1); + mac2 = mac_to_u64(mac_addr2); + + /* must contain an address range */ + num_macs = mac2 - mac1 + 1; + /* <= 50 to protect against user programming error */ + if (num_macs > 0 && num_macs <= 50) { + for (i = 0; i < num_macs; i++) { + u64_to_mac(mac1 + i, mac_addr); + if (is_valid_ethaddr(mac_addr)) { + eth_setenv_enetaddr_by_index("eth", + i + 2, + mac_addr); + } + } + } + } + return ret; } #endif