1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright 2017 NXP
4 *
5 * Peng Fan <peng.fan@nxp.com>
6 */
7
8#include <common.h>
9#include <asm/arch/imx-regs.h>
10#include <asm/io.h>
11#include <asm/arch/sys_proto.h>
12#include <errno.h>
13
14struct imx_mac_fuse {
15	u32 mac_addr0;
16	u32 rsvd0[3];
17	u32 mac_addr1;
18	u32 rsvd1[3];
19	u32 mac_addr2;
20	u32 rsvd2[7];
21};
22
23#define MAC_FUSE_MX6_OFFSET	0x620
24#define MAC_FUSE_MX7_OFFSET	0x640
25
26void imx_get_mac_from_fuse(int dev_id, unsigned char *mac)
27{
28	struct imx_mac_fuse *fuse;
29	u32 offset;
30	bool has_second_mac;
31
32	offset = is_mx6() ? MAC_FUSE_MX6_OFFSET : MAC_FUSE_MX7_OFFSET;
33	fuse = (struct imx_mac_fuse *)(ulong)(OCOTP_BASE_ADDR + offset);
34	has_second_mac = is_mx7() || is_mx6sx() || is_mx6ul() || is_mx6ull() || is_imx8mp();
35
36	if (has_second_mac && dev_id == 1) {
37		u32 value = readl(&fuse->mac_addr2);
38
39		mac[0] = value >> 24;
40		mac[1] = value >> 16;
41		mac[2] = value >> 8;
42		mac[3] = value;
43
44		value = readl(&fuse->mac_addr1);
45		mac[4] = value >> 24;
46		mac[5] = value >> 16;
47
48	} else {
49		u32 value = readl(&fuse->mac_addr1);
50
51		mac[0] = value >> 8;
52		mac[1] = value;
53
54		value = readl(&fuse->mac_addr0);
55		mac[2] = value >> 24;
56		mac[3] = value >> 16;
57		mac[4] = value >> 8;
58		mac[5] = value;
59	}
60}
61