LXR uboot/board/intel/edison/edison.c

   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
  19static 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
  26int usb_gadget_handle_interrupts(int controller_index)
  27{
  28        dwc3_uboot_handle_interrupt(controller_index);
  29        WATCHDOG_RESET();
  30        return 0;
  31}
  32
  33int 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
  40int 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
  49static 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
  75static 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
  93int 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