1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright (c) 2017 Intel Corporation
4 */
5#include <common.h>
6#include <env.h>
7#include <init.h>
8#include <mmc.h>
9#include <u-boot/md5.h>
10
11#include <asm/cache.h>
12#include <asm/pmu.h>
13#include <asm/scu.h>
14#include <asm/u-boot-x86.h>
15
16/* List of Intel Tangier LSSs */
17#define PMU_LSS_TANGIER_SDIO0_01	1
18
19int board_early_init_r(void)
20{
21	pmu_turn_power(PMU_LSS_TANGIER_SDIO0_01, true);
22	return 0;
23}
24
25static void assign_serial(void)
26{
27	struct mmc *mmc = find_mmc_device(0);
28	unsigned char ssn[16];
29	char usb0addr[18];
30	char serial[33];
31	int i;
32
33	if (!mmc)
34		return;
35
36	md5((unsigned char *)mmc->cid, sizeof(mmc->cid), ssn);
37
38	snprintf(usb0addr, sizeof(usb0addr), "02:00:86:%02x:%02x:%02x",
39		 ssn[13], ssn[14], ssn[15]);
40	env_set("usb0addr", usb0addr);
41
42	for (i = 0; i < 16; i++)
43		snprintf(&serial[2 * i], 3, "%02x", ssn[i]);
44	env_set("serial#", serial);
45
46#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
47	env_save();
48#endif
49}
50
51static void assign_hardware_id(void)
52{
53	struct ipc_ifwi_version v;
54	char hardware_id[4];
55	int ret;
56
57	ret = scu_ipc_command(IPCMSG_GET_FW_REVISION, 1, NULL, 0, (u32 *)&v, 4);
58	if (ret < 0)
59		printf("Can't retrieve hardware revision\n");
60
61	snprintf(hardware_id, sizeof(hardware_id), "%02X", v.hardware_id);
62	env_set("hardware_id", hardware_id);
63
64#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
65	env_save();
66#endif
67}
68
69int board_late_init(void)
70{
71	if (!env_get("serial#"))
72		assign_serial();
73
74	if (!env_get("hardware_id"))
75		assign_hardware_id();
76
77	return 0;
78}
79