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