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 <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
  24int board_early_init_r(void)
  25{
  26        pmu_turn_power(PMU_LSS_TANGIER_SDIO0_01, true);
  27        return 0;
  28}
  29
  30static 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
  37int usb_gadget_handle_interrupts(int controller_index)
  38{
  39        dwc3_uboot_handle_interrupt(controller_index);
  40        WATCHDOG_RESET();
  41        return 0;
  42}
  43
  44int 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
  51int 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
  60static 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
  86static 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
 104int 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