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