[J-u-boot.git] / arch / arm / mach-imx / mac.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright 2017 NXP
 *
 * Peng Fan <[email protected]>
 */

#include <common.h>
#include <asm/arch/imx-regs.h>
#include <asm/io.h>
#include <asm/arch/sys_proto.h>
#include <errno.h>

struct imx_mac_fuse {
	u32 mac_addr0;
	u32 rsvd0[3];
	u32 mac_addr1;
	u32 rsvd1[3];
	u32 mac_addr2;
	u32 rsvd2[7];
};

#define MAC_FUSE_MX6_OFFSET	0x620
#define MAC_FUSE_MX7_OFFSET	0x640

void imx_get_mac_from_fuse(int dev_id, unsigned char *mac)
{
	struct imx_mac_fuse *fuse;
	u32 offset;
	bool has_second_mac;

	offset = is_mx6() ? MAC_FUSE_MX6_OFFSET : MAC_FUSE_MX7_OFFSET;
	fuse = (struct imx_mac_fuse *)(ulong)(OCOTP_BASE_ADDR + offset);
	has_second_mac = is_mx7() || is_mx6sx() || is_mx6ul() || is_mx6ull();

	if (has_second_mac && dev_id == 1) {
		u32 value = readl(&fuse->mac_addr2);

		mac[0] = value >> 24;
		mac[1] = value >> 16;
		mac[2] = value >> 8;
		mac[3] = value;

		value = readl(&fuse->mac_addr1);
		mac[4] = value >> 24;
		mac[5] = value >> 16;

	} else {
		u32 value = readl(&fuse->mac_addr1);

		mac[0] = value >> 8;
		mac[1] = value;

		value = readl(&fuse->mac_addr0);
		mac[2] = value >> 24;
		mac[3] = value >> 16;
		mac[4] = value >> 8;
		mac[5] = value;
	}
}
Commit	Line	Data
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
6ce8b10b PF	2	/*
	3	* Copyright 2017 NXP
	4	*
	5	* Peng Fan <[email protected]>
6ce8b10b PF	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
	14	struct 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
	26	void 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();
	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	}