stm32_rcc.c 2.1 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. struct stm32_rcc_clk stm32_rcc_clk_mp1 = {
  28. .drv_name = "stm32mp1_clk",
  29. .soc = STM32MP1,
  30. };
  31. static int stm32_rcc_bind(struct udevice *dev)
  32. {
  33. struct udevice *child;
  34. struct driver *drv;
  35. struct stm32_rcc_clk *rcc_clk =
  36. (struct stm32_rcc_clk *)dev_get_driver_data(dev);
  37. int ret;
  38. debug("%s(dev=%p)\n", __func__, dev);
  39. drv = lists_driver_lookup_name(rcc_clk->drv_name);
  40. if (!drv) {
  41. debug("Cannot find driver '%s'\n", rcc_clk->drv_name);
  42. return -ENOENT;
  43. }
  44. ret = device_bind_with_driver_data(dev, drv, rcc_clk->drv_name,
  45. rcc_clk->soc,
  46. dev_ofnode(dev), &child);
  47. if (ret)
  48. return ret;
  49. drv = lists_driver_lookup_name("stm32_rcc_reset");
  50. if (!drv) {
  51. dev_err(dev, "Cannot find driver stm32_rcc_reset'\n");
  52. return -ENOENT;
  53. }
  54. return device_bind_with_driver_data(dev, drv, "stm32_rcc_reset",
  55. rcc_clk->soc,
  56. dev_ofnode(dev), &child);
  57. }
  58. static const struct udevice_id stm32_rcc_ids[] = {
  59. {.compatible = "st,stm32f42xx-rcc", .data = (ulong)&stm32_rcc_clk_f42x },
  60. {.compatible = "st,stm32f469-rcc", .data = (ulong)&stm32_rcc_clk_f469 },
  61. {.compatible = "st,stm32f746-rcc", .data = (ulong)&stm32_rcc_clk_f7 },
  62. {.compatible = "st,stm32h743-rcc", .data = (ulong)&stm32_rcc_clk_h7 },
  63. {.compatible = "st,stm32mp1-rcc", .data = (ulong)&stm32_rcc_clk_mp1 },
  64. { }
  65. };
  66. U_BOOT_DRIVER(stm32_rcc) = {
  67. .name = "stm32-rcc",
  68. .id = UCLASS_NOP,
  69. .of_match = stm32_rcc_ids,
  70. .bind = stm32_rcc_bind,
  71. };