61 lines
1.2 KiB
C
61 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2017 NXP
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*
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* Peng Fan <peng.fan@nxp.com>
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*/
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#include <common.h>
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#include <asm/arch/imx-regs.h>
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#include <asm/io.h>
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#include <asm/arch/sys_proto.h>
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#include <errno.h>
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struct imx_mac_fuse {
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u32 mac_addr0;
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u32 rsvd0[3];
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u32 mac_addr1;
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u32 rsvd1[3];
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u32 mac_addr2;
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u32 rsvd2[7];
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};
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#define MAC_FUSE_MX6_OFFSET 0x620
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#define MAC_FUSE_MX7_OFFSET 0x640
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void imx_get_mac_from_fuse(int dev_id, unsigned char *mac)
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{
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struct imx_mac_fuse *fuse;
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u32 offset;
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bool has_second_mac;
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offset = is_mx6() ? MAC_FUSE_MX6_OFFSET : MAC_FUSE_MX7_OFFSET;
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fuse = (struct imx_mac_fuse *)(ulong)(OCOTP_BASE_ADDR + offset);
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has_second_mac = is_mx7() || is_mx6sx() || is_mx6ul() || is_mx6ull();
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if (has_second_mac && dev_id == 1) {
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u32 value = readl(&fuse->mac_addr2);
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mac[0] = value >> 24;
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mac[1] = value >> 16;
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mac[2] = value >> 8;
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mac[3] = value;
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value = readl(&fuse->mac_addr1);
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mac[4] = value >> 24;
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mac[5] = value >> 16;
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} else {
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u32 value = readl(&fuse->mac_addr1);
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mac[0] = value >> 8;
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mac[1] = value;
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value = readl(&fuse->mac_addr0);
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mac[2] = value >> 24;
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mac[3] = value >> 16;
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mac[4] = value >> 8;
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mac[5] = value;
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}
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}
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