edison.c 1.5 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778
  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright (c) 2017 Intel Corporation
  4. */
  5. #include <common.h>
  6. #include <env.h>
  7. #include <init.h>
  8. #include <mmc.h>
  9. #include <u-boot/md5.h>
  10. #include <asm/cache.h>
  11. #include <asm/pmu.h>
  12. #include <asm/scu.h>
  13. #include <asm/u-boot-x86.h>
  14. /* List of Intel Tangier LSSs */
  15. #define PMU_LSS_TANGIER_SDIO0_01 1
  16. int board_early_init_r(void)
  17. {
  18. pmu_turn_power(PMU_LSS_TANGIER_SDIO0_01, true);
  19. return 0;
  20. }
  21. static void assign_serial(void)
  22. {
  23. struct mmc *mmc = find_mmc_device(0);
  24. unsigned char ssn[16];
  25. char usb0addr[18];
  26. char serial[33];
  27. int i;
  28. if (!mmc)
  29. return;
  30. md5((unsigned char *)mmc->cid, sizeof(mmc->cid), ssn);
  31. snprintf(usb0addr, sizeof(usb0addr), "02:00:86:%02x:%02x:%02x",
  32. ssn[13], ssn[14], ssn[15]);
  33. env_set("usb0addr", usb0addr);
  34. for (i = 0; i < 16; i++)
  35. snprintf(&serial[2 * i], 3, "%02x", ssn[i]);
  36. env_set("serial#", serial);
  37. #if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
  38. env_save();
  39. #endif
  40. }
  41. static void assign_hardware_id(void)
  42. {
  43. struct ipc_ifwi_version v;
  44. char hardware_id[4];
  45. int ret;
  46. ret = scu_ipc_command(IPCMSG_GET_FW_REVISION, 1, NULL, 0, (u32 *)&v, 4);
  47. if (ret < 0)
  48. printf("Can't retrieve hardware revision\n");
  49. snprintf(hardware_id, sizeof(hardware_id), "%02X", v.hardware_id);
  50. env_set("hardware_id", hardware_id);
  51. #if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
  52. env_save();
  53. #endif
  54. }
  55. int board_late_init(void)
  56. {
  57. if (!env_get("serial#"))
  58. assign_serial();
  59. if (!env_get("hardware_id"))
  60. assign_hardware_id();
  61. return 0;
  62. }