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03de305ec4
As part of bringing the master branch back in to next, we need to allow for all of these changes to exist here. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
81 lines
1.6 KiB
C
81 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2022 Marek Vasut <marex@denx.de>
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* Copyright 2022 DENX Software Engineering GmbH, Philip Oberfichtner <pro@denx.de>
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*/
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#include <dm.h>
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#include <i2c_eeprom.h>
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#include <net.h>
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#include "dh_common.h"
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bool dh_mac_is_in_env(const char *env)
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{
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unsigned char enetaddr[6];
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return eth_env_get_enetaddr(env, enetaddr);
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}
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int dh_get_mac_is_enabled(const char *alias)
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{
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ofnode node = ofnode_path(alias);
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if (!ofnode_valid(node))
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return -EINVAL;
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if (!ofnode_is_enabled(node))
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return -ENODEV;
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return 0;
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}
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int dh_get_mac_from_eeprom(unsigned char *enetaddr, const char *alias)
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{
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struct udevice *dev;
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int ret;
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ofnode node;
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node = ofnode_path(alias);
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if (!ofnode_valid(node)) {
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printf("%s: ofnode for %s not found!", __func__, alias);
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return -ENOENT;
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}
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ret = uclass_get_device_by_ofnode(UCLASS_I2C_EEPROM, node, &dev);
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if (ret) {
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printf("%s: Cannot find EEPROM! ret = %d\n", __func__, ret);
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return ret;
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}
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ret = i2c_eeprom_read(dev, 0xfa, enetaddr, 0x6);
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if (ret) {
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printf("%s: Error reading EEPROM! ret = %d\n", __func__, ret);
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return ret;
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}
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if (!is_valid_ethaddr(enetaddr)) {
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printf("%s: Address read from EEPROM is invalid!\n", __func__);
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return -EINVAL;
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}
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return 0;
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}
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__weak int dh_setup_mac_address(void)
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{
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unsigned char enetaddr[6];
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if (dh_mac_is_in_env("ethaddr"))
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return 0;
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if (dh_get_mac_is_enabled("ethernet0"))
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return 0;
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if (!dh_get_mac_from_eeprom(enetaddr, "eeprom0"))
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return eth_env_set_enetaddr("ethaddr", enetaddr);
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printf("%s: Unable to set mac address!\n", __func__);
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return -ENXIO;
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}
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