common.c 1.2 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * (C) Copyright 2014 CompuLab, Ltd. <www.compulab.co.il>
  4. *
  5. * Authors: Igor Grinberg <grinberg@compulab.co.il>
  6. */
  7. #include <common.h>
  8. #include <malloc.h>
  9. #include <asm/bootm.h>
  10. #include <asm/gpio.h>
  11. #include <asm/setup.h>
  12. #include <linux/delay.h>
  13. #include "common.h"
  14. #include "eeprom.h"
  15. void cl_print_pcb_info(void)
  16. {
  17. u32 board_rev = get_board_rev();
  18. u32 rev_major = board_rev / 100;
  19. u32 rev_minor = board_rev - (rev_major * 100);
  20. if ((rev_minor / 10) * 10 == rev_minor)
  21. rev_minor = rev_minor / 10;
  22. printf("PCB: %u.%u\n", rev_major, rev_minor);
  23. }
  24. #ifdef CONFIG_SERIAL_TAG
  25. void __weak get_board_serial(struct tag_serialnr *serialnr)
  26. {
  27. /*
  28. * This corresponds to what happens when we can communicate with the
  29. * eeprom but don't get a valid board serial value.
  30. */
  31. serialnr->low = 0;
  32. serialnr->high = 0;
  33. };
  34. #endif
  35. #ifdef CONFIG_CMD_USB
  36. int cl_usb_hub_init(int gpio, const char *label)
  37. {
  38. if (gpio_request(gpio, label)) {
  39. printf("Error: can't obtain GPIO%d for %s", gpio, label);
  40. return -1;
  41. }
  42. gpio_direction_output(gpio, 0);
  43. udelay(10);
  44. gpio_set_value(gpio, 1);
  45. udelay(1000);
  46. return 0;
  47. }
  48. void cl_usb_hub_deinit(int gpio)
  49. {
  50. gpio_free(gpio);
  51. }
  52. #endif