iomux.c 940 B

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright 2018 NXP
  4. */
  5. #include <common.h>
  6. #include <log.h>
  7. #include <asm/global_data.h>
  8. #include <asm/io.h>
  9. #include <asm/arch/iomux.h>
  10. #include <asm/arch/sci/sci.h>
  11. DECLARE_GLOBAL_DATA_PTR;
  12. /*
  13. * configures a single pad in the iomuxer
  14. */
  15. void imx8_iomux_setup_pad(iomux_cfg_t pad)
  16. {
  17. sc_pad_t pin_id = pad & PIN_ID_MASK;
  18. int ret;
  19. u32 val = (u32)((pad & MUX_PAD_CTRL_MASK) >> MUX_PAD_CTRL_SHIFT);
  20. val |= PADRING_IFMUX_EN_MASK;
  21. val |= PADRING_GP_EN_MASK;
  22. ret = sc_pad_set(-1, pin_id, val);
  23. if (ret)
  24. printf("sc_pad_set failed!, pin: %u, val: 0x%x\n", pin_id, val);
  25. debug("iomux: pin %d, val = 0x%x\n", pin_id, val);
  26. }
  27. /* configures a list of pads within declared with IOMUX_PADS macro */
  28. void imx8_iomux_setup_multiple_pads(iomux_cfg_t const *pad_list, u32 count)
  29. {
  30. iomux_cfg_t const *p = pad_list;
  31. int i;
  32. for (i = 0; i < count; i++) {
  33. imx8_iomux_setup_pad(*p);
  34. p++;
  35. }
  36. }