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