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
board_early_init_r(void)19 int board_early_init_r(void)
20 {
21 pmu_turn_power(PMU_LSS_TANGIER_SDIO0_01, true);
22 return 0;
23 }
24
assign_serial(void)25 static 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
assign_hardware_id(void)51 static 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
board_late_init(void)69 int 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