spl_sdp.c 1.1 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * (C) Copyright 2016 Toradex
  4. * Author: Stefan Agner <stefan.agner@toradex.com>
  5. */
  6. #include <common.h>
  7. #include <log.h>
  8. #include <spl.h>
  9. #include <usb.h>
  10. #include <g_dnl.h>
  11. #include <sdp.h>
  12. static int spl_sdp_load_image(struct spl_image_info *spl_image,
  13. struct spl_boot_device *bootdev)
  14. {
  15. int ret;
  16. const int controller_index = CONFIG_SPL_SDP_USB_DEV;
  17. usb_gadget_initialize(controller_index);
  18. board_usb_init(0, USB_INIT_DEVICE);
  19. g_dnl_clear_detach();
  20. ret = g_dnl_register("usb_dnl_sdp");
  21. if (ret) {
  22. pr_err("SDP dnl register failed: %d\n", ret);
  23. return ret;
  24. }
  25. ret = sdp_init(controller_index);
  26. if (ret) {
  27. pr_err("SDP init failed: %d\n", ret);
  28. return -ENODEV;
  29. }
  30. /*
  31. * This command either loads a legacy image, jumps and never returns,
  32. * or it loads a FIT image and returns it to be handled by the SPL
  33. * code.
  34. */
  35. ret = spl_sdp_handle(controller_index, spl_image);
  36. debug("SDP ended\n");
  37. usb_gadget_release(controller_index);
  38. return ret;
  39. }
  40. SPL_LOAD_IMAGE_METHOD("USB SDP", 0, BOOT_DEVICE_BOARD, spl_sdp_load_image);