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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2023 Variscite Ltd.
*/
#include <net.h>
#include <miiphy.h>
#include <env.h>
#include "../common/imx9_eeprom.h"
#define CHAR_BIT 8
static u64 mac2int(const u8 hwaddr[])
{
u8 i;
u64 ret = 0;
const u8 *p = hwaddr;
for (i = 6; i > 0; i--)
ret |= (u64)*p++ << (CHAR_BIT * (i - 1));
return ret;
}
static void int2mac(const u64 mac, u8 *hwaddr)
{
u8 i;
u8 *p = hwaddr;
for (i = 6; i > 0; i--)
*p++ = mac >> (CHAR_BIT * (i - 1));
}
int var_setup_mac(struct var_eeprom *eeprom)
{
int ret;
unsigned char enetaddr[6];
u64 addr;
unsigned char enet1addr[6];
ret = eth_env_get_enetaddr("ethaddr", enetaddr);
if (ret)
return 0;
ret = var_eeprom_get_mac(eeprom, enetaddr);
if (ret)
return ret;
if (!is_valid_ethaddr(enetaddr))
return -EINVAL;
eth_env_set_enetaddr("ethaddr", enetaddr);
addr = mac2int(enetaddr);
int2mac(addr + 1, enet1addr);
eth_env_set_enetaddr("eth1addr", enet1addr);
return 0;
}
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