ARM: AM335x: add support for reading cpsw 2nd mac address from efuse

Adding support for reading cpsw 2nd mac address from efuse and pass it
to kernel via dtb which will be used in dual emac mode of cpsw.
Also adding mii command support to am335x common config.

Acked-by: Tom Rini <trini@ti.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>

board/ti/am335x/board.c

@@ -602,6 +602,21 @@ int board_eth_init(bd_t *bis)
 	}
 
 #ifdef CONFIG_DRIVER_TI_CPSW
+
+	mac_lo = readl(&cdev->macid1l);
+	mac_hi = readl(&cdev->macid1h);
+	mac_addr[0] = mac_hi & 0xFF;
+	mac_addr[1] = (mac_hi & 0xFF00) >> 8;
+	mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
+	mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
+	mac_addr[4] = mac_lo & 0xFF;
+	mac_addr[5] = (mac_lo & 0xFF00) >> 8;
+
+	if (!getenv("eth1addr")) {
+		if (is_valid_ether_addr(mac_addr))
+			eth_setenv_enetaddr("eth1addr", mac_addr);
+	}
+
 	if (read_eeprom(&header) < 0)
 		puts("Could not get board ID.\n");
 

include/configs/ti_am335x_common.h

@@ -30,6 +30,7 @@
 /* Network defines. */
 #define CONFIG_CMD_NET			/* 'bootp' and 'tftp' */
 #define CONFIG_CMD_DHCP
+#define CONFIG_CMD_MII
 #define CONFIG_BOOTP_DNS		/* Configurable parts of CMD_DHCP */
 #define CONFIG_BOOTP_DNS2
 #define CONFIG_BOOTP_SEND_HOSTNAME