GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/board/atmel/common/mac_eeprom.c

@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2017 Microchip
+ *		      Wenyou Yang <wenyou.yang@microchip.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <eeprom.h>
+#include <env.h>
+#include <i2c_eeprom.h>
+#include <netdev.h>
+
+int at91_set_ethaddr(int offset)
+{
+	const int ETH_ADDR_LEN = 6;
+	unsigned char ethaddr[ETH_ADDR_LEN];
+	const char *ETHADDR_NAME = "ethaddr";
+	struct udevice *dev;
+	int ret;
+
+	if (env_get(ETHADDR_NAME))
+		return 0;
+
+	ret = uclass_first_device_err(UCLASS_I2C_EEPROM, &dev);
+	if (ret)
+		return ret;
+
+	ret = i2c_eeprom_read(dev, offset, ethaddr, 6);
+	if (ret)
+		return ret;
+
+	if (is_valid_ethaddr(ethaddr))
+		eth_env_set_enetaddr(ETHADDR_NAME, ethaddr);
+
+	return 0;
+}