stm32_rcc.c 1.9 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright (C) 2017, STMicroelectronics - All Rights Reserved
  4. * Author(s): Patrice Chotard, <patrice.chotard@st.com> for STMicroelectronics.
  5. */
  6. #include <common.h>
  7. #include <dm.h>
  8. #include <misc.h>
  9. #include <stm32_rcc.h>
  10. #include <dm/device-internal.h>
  11. #include <dm/lists.h>
  12. struct stm32_rcc_clk stm32_rcc_clk_f42x = {
  13. .drv_name = "stm32fx_rcc_clock",
  14. .soc = STM32F42X,
  15. };
  16. struct stm32_rcc_clk stm32_rcc_clk_f469 = {
  17. .drv_name = "stm32fx_rcc_clock",
  18. .soc = STM32F469,
  19. };
  20. struct stm32_rcc_clk stm32_rcc_clk_f7 = {
  21. .drv_name = "stm32fx_rcc_clock",
  22. .soc = STM32F7,
  23. };
  24. struct stm32_rcc_clk stm32_rcc_clk_h7 = {
  25. .drv_name = "stm32h7_rcc_clock",
  26. };
  27. static int stm32_rcc_bind(struct udevice *dev)
  28. {
  29. struct udevice *child;
  30. struct driver *drv;
  31. struct stm32_rcc_clk *rcc_clk =
  32. (struct stm32_rcc_clk *)dev_get_driver_data(dev);
  33. int ret;
  34. debug("%s(dev=%p)\n", __func__, dev);
  35. drv = lists_driver_lookup_name(rcc_clk->drv_name);
  36. if (!drv) {
  37. debug("Cannot find driver '%s'\n", rcc_clk->drv_name);
  38. return -ENOENT;
  39. }
  40. ret = device_bind_with_driver_data(dev, drv, rcc_clk->drv_name,
  41. rcc_clk->soc,
  42. dev_ofnode(dev), &child);
  43. if (ret)
  44. return ret;
  45. return device_bind_driver_to_node(dev, "stm32_rcc_reset",
  46. "stm32_rcc_reset",
  47. dev_ofnode(dev), &child);
  48. }
  49. static const struct misc_ops stm32_rcc_ops = {
  50. };
  51. static const struct udevice_id stm32_rcc_ids[] = {
  52. {.compatible = "st,stm32f42xx-rcc", .data = (ulong)&stm32_rcc_clk_f42x },
  53. {.compatible = "st,stm32f469-rcc", .data = (ulong)&stm32_rcc_clk_f469 },
  54. {.compatible = "st,stm32f746-rcc", .data = (ulong)&stm32_rcc_clk_f7 },
  55. {.compatible = "st,stm32h743-rcc", .data = (ulong)&stm32_rcc_clk_h7 },
  56. { }
  57. };
  58. U_BOOT_DRIVER(stm32_rcc) = {
  59. .name = "stm32-rcc",
  60. .id = UCLASS_MISC,
  61. .of_match = stm32_rcc_ids,
  62. .bind = stm32_rcc_bind,
  63. .ops = &stm32_rcc_ops,
  64. };