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

source/bootloader/u-boot-2020.01/board/xilinx/common/board.c

@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2014 - 2019 Xilinx, Inc.
+ * Michal Simek <michal.simek@xilinx.com>
+ */
+
+#include <common.h>
+#include <dm/uclass.h>
+#include <i2c.h>
+
+int zynq_board_read_rom_ethaddr(unsigned char *ethaddr)
+{
+	int ret = -EINVAL;
+
+#if defined(CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET)
+	struct udevice *dev;
+	ofnode eeprom;
+
+	eeprom = ofnode_get_chosen_node("xlnx,eeprom");
+	if (!ofnode_valid(eeprom))
+		return -ENODEV;
+
+	debug("%s: Path to EEPROM %s\n", __func__,
+	      ofnode_get_chosen_prop("xlnx,eeprom"));
+
+	ret = uclass_get_device_by_ofnode(UCLASS_I2C_EEPROM, eeprom, &dev);
+	if (ret)
+		return ret;
+
+	ret = dm_i2c_read(dev, CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET, ethaddr, 6);
+	if (ret)
+		debug("%s: I2C EEPROM MAC address read failed\n", __func__);
+	else
+		debug("%s: I2C EEPROM MAC %pM\n", __func__, ethaddr);
+#endif
+
+	return ret;
+}
+
+#if defined(CONFIG_OF_BOARD)
+void *board_fdt_blob_setup(void)
+{
+	static void *fw_dtb = (void *)CONFIG_XILINX_OF_BOARD_DTB_ADDR;
+
+	if (fdt_magic(fw_dtb) != FDT_MAGIC) {
+		printf("DTB is not passed via %p\n", fw_dtb);
+		return NULL;
+	}
+
+	return fw_dtb;
+}
+#endif