stm32_rcc.c 2.2 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@foss.st.com> for STMicroelectronics.
  5. */
  6. #define LOG_CATEGORY UCLASS_NOP
  7. #include <common.h>
  8. #include <dm.h>
  9. #include <log.h>
  10. #include <misc.h>
  11. #include <stm32_rcc.h>
  12. #include <dm/device-internal.h>
  13. #include <dm/device_compat.h>
  14. #include <dm/lists.h>
  15. struct stm32_rcc_clk stm32_rcc_clk_f42x = {
  16. .drv_name = "stm32fx_rcc_clock",
  17. .soc = STM32F42X,
  18. };
  19. struct stm32_rcc_clk stm32_rcc_clk_f469 = {
  20. .drv_name = "stm32fx_rcc_clock",
  21. .soc = STM32F469,
  22. };
  23. struct stm32_rcc_clk stm32_rcc_clk_f7 = {
  24. .drv_name = "stm32fx_rcc_clock",
  25. .soc = STM32F7,
  26. };
  27. struct stm32_rcc_clk stm32_rcc_clk_h7 = {
  28. .drv_name = "stm32h7_rcc_clock",
  29. };
  30. struct stm32_rcc_clk stm32_rcc_clk_mp1 = {
  31. .drv_name = "stm32mp1_clk",
  32. .soc = STM32MP1,
  33. };
  34. static int stm32_rcc_bind(struct udevice *dev)
  35. {
  36. struct udevice *child;
  37. struct driver *drv;
  38. struct stm32_rcc_clk *rcc_clk =
  39. (struct stm32_rcc_clk *)dev_get_driver_data(dev);
  40. int ret;
  41. dev_dbg(dev, "RCC bind\n");
  42. drv = lists_driver_lookup_name(rcc_clk->drv_name);
  43. if (!drv) {
  44. dev_err(dev, "Cannot find driver '%s'\n", rcc_clk->drv_name);
  45. return -ENOENT;
  46. }
  47. ret = device_bind_with_driver_data(dev, drv, dev->name,
  48. rcc_clk->soc,
  49. dev_ofnode(dev), &child);
  50. if (ret)
  51. return ret;
  52. drv = lists_driver_lookup_name("stm32_rcc_reset");
  53. if (!drv) {
  54. dev_err(dev, "Cannot find driver stm32_rcc_reset'\n");
  55. return -ENOENT;
  56. }
  57. return device_bind_with_driver_data(dev, drv, dev->name,
  58. rcc_clk->soc,
  59. dev_ofnode(dev), &child);
  60. }
  61. static const struct udevice_id stm32_rcc_ids[] = {
  62. {.compatible = "st,stm32f42xx-rcc", .data = (ulong)&stm32_rcc_clk_f42x },
  63. {.compatible = "st,stm32f469-rcc", .data = (ulong)&stm32_rcc_clk_f469 },
  64. {.compatible = "st,stm32f746-rcc", .data = (ulong)&stm32_rcc_clk_f7 },
  65. {.compatible = "st,stm32h743-rcc", .data = (ulong)&stm32_rcc_clk_h7 },
  66. {.compatible = "st,stm32mp1-rcc", .data = (ulong)&stm32_rcc_clk_mp1 },
  67. { }
  68. };
  69. U_BOOT_DRIVER(stm32_rcc) = {
  70. .name = "stm32-rcc",
  71. .id = UCLASS_NOP,
  72. .of_match = stm32_rcc_ids,
  73. .bind = stm32_rcc_bind,
  74. };