1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (c) 2017 Intel Corporation
4 */
5 #include <common.h>
6 #include <dwc3-uboot.h>
7 #include <env.h>
8 #include <init.h>
9 #include <mmc.h>
10 #include <u-boot/md5.h>
11 #include <usb.h>
12 #include <watchdog.h>
13
14 #include <linux/usb/gadget.h>
15
16 #include <asm/cache.h>
17 #include <asm/pmu.h>
18 #include <asm/scu.h>
19 #include <asm/u-boot-x86.h>
20
21 /* List of Intel Tangier LSSs */
22 #define PMU_LSS_TANGIER_SDIO0_01 1
23
board_early_init_r(void)24 int board_early_init_r(void)
25 {
26 pmu_turn_power(PMU_LSS_TANGIER_SDIO0_01, true);
27 return 0;
28 }
29
30 static struct dwc3_device dwc3_device_data = {
31 .maximum_speed = USB_SPEED_HIGH,
32 .base = CONFIG_SYS_USB_OTG_BASE,
33 .dr_mode = USB_DR_MODE_PERIPHERAL,
34 .index = 0,
35 };
36
usb_gadget_handle_interrupts(int controller_index)37 int usb_gadget_handle_interrupts(int controller_index)
38 {
39 dwc3_uboot_handle_interrupt(controller_index);
40 WATCHDOG_RESET();
41 return 0;
42 }
43
board_usb_init(int index,enum usb_init_type init)44 int board_usb_init(int index, enum usb_init_type init)
45 {
46 if (index == 0 && init == USB_INIT_DEVICE)
47 return dwc3_uboot_init(&dwc3_device_data);
48 return -EINVAL;
49 }
50
board_usb_cleanup(int index,enum usb_init_type init)51 int board_usb_cleanup(int index, enum usb_init_type init)
52 {
53 if (index == 0 && init == USB_INIT_DEVICE) {
54 dwc3_uboot_exit(index);
55 return 0;
56 }
57 return -EINVAL;
58 }
59
assign_serial(void)60 static void assign_serial(void)
61 {
62 struct mmc *mmc = find_mmc_device(0);
63 unsigned char ssn[16];
64 char usb0addr[18];
65 char serial[33];
66 int i;
67
68 if (!mmc)
69 return;
70
71 md5((unsigned char *)mmc->cid, sizeof(mmc->cid), ssn);
72
73 snprintf(usb0addr, sizeof(usb0addr), "02:00:86:%02x:%02x:%02x",
74 ssn[13], ssn[14], ssn[15]);
75 env_set("usb0addr", usb0addr);
76
77 for (i = 0; i < 16; i++)
78 snprintf(&serial[2 * i], 3, "%02x", ssn[i]);
79 env_set("serial#", serial);
80
81 #if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
82 env_save();
83 #endif
84 }
85
assign_hardware_id(void)86 static void assign_hardware_id(void)
87 {
88 struct ipc_ifwi_version v;
89 char hardware_id[4];
90 int ret;
91
92 ret = scu_ipc_command(IPCMSG_GET_FW_REVISION, 1, NULL, 0, (u32 *)&v, 4);
93 if (ret < 0)
94 printf("Can't retrieve hardware revision\n");
95
96 snprintf(hardware_id, sizeof(hardware_id), "%02X", v.hardware_id);
97 env_set("hardware_id", hardware_id);
98
99 #if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
100 env_save();
101 #endif
102 }
103
board_late_init(void)104 int board_late_init(void)
105 {
106 if (!env_get("serial#"))
107 assign_serial();
108
109 if (!env_get("hardware_id"))
110 assign_hardware_id();
111
112 return 0;
113 }
114