clk_v3s.c 1.9 KB

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  1. // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
  2. /*
  3. * Copyright (C) 2018 Amarula Solutions.
  4. * Author: Jagan Teki <jagan@amarulasolutions.com>
  5. */
  6. #include <common.h>
  7. #include <clk-uclass.h>
  8. #include <dm.h>
  9. #include <errno.h>
  10. #include <asm/arch/ccu.h>
  11. #include <dt-bindings/clock/sun8i-v3s-ccu.h>
  12. #include <dt-bindings/reset/sun8i-v3s-ccu.h>
  13. #include <linux/bitops.h>
  14. static struct ccu_clk_gate v3s_gates[] = {
  15. [CLK_BUS_MMC0] = GATE(0x060, BIT(8)),
  16. [CLK_BUS_MMC1] = GATE(0x060, BIT(9)),
  17. [CLK_BUS_MMC2] = GATE(0x060, BIT(10)),
  18. [CLK_BUS_SPI0] = GATE(0x060, BIT(20)),
  19. [CLK_BUS_OTG] = GATE(0x060, BIT(24)),
  20. [CLK_BUS_UART0] = GATE(0x06c, BIT(16)),
  21. [CLK_BUS_UART1] = GATE(0x06c, BIT(17)),
  22. [CLK_BUS_UART2] = GATE(0x06c, BIT(18)),
  23. [CLK_SPI0] = GATE(0x0a0, BIT(31)),
  24. [CLK_USB_PHY0] = GATE(0x0cc, BIT(8)),
  25. };
  26. static struct ccu_reset v3s_resets[] = {
  27. [RST_USB_PHY0] = RESET(0x0cc, BIT(0)),
  28. [RST_BUS_MMC0] = RESET(0x2c0, BIT(8)),
  29. [RST_BUS_MMC1] = RESET(0x2c0, BIT(9)),
  30. [RST_BUS_MMC2] = RESET(0x2c0, BIT(10)),
  31. [RST_BUS_SPI0] = RESET(0x2c0, BIT(20)),
  32. [RST_BUS_OTG] = RESET(0x2c0, BIT(24)),
  33. [RST_BUS_UART0] = RESET(0x2d8, BIT(16)),
  34. [RST_BUS_UART1] = RESET(0x2d8, BIT(17)),
  35. [RST_BUS_UART2] = RESET(0x2d8, BIT(18)),
  36. };
  37. static const struct ccu_desc v3s_ccu_desc = {
  38. .gates = v3s_gates,
  39. .resets = v3s_resets,
  40. };
  41. static int v3s_clk_bind(struct udevice *dev)
  42. {
  43. return sunxi_reset_bind(dev, ARRAY_SIZE(v3s_resets));
  44. }
  45. static const struct udevice_id v3s_clk_ids[] = {
  46. { .compatible = "allwinner,sun8i-v3s-ccu",
  47. .data = (ulong)&v3s_ccu_desc },
  48. { .compatible = "allwinner,sun8i-v3-ccu",
  49. .data = (ulong)&v3s_ccu_desc },
  50. { }
  51. };
  52. U_BOOT_DRIVER(clk_sun8i_v3s) = {
  53. .name = "sun8i_v3s_ccu",
  54. .id = UCLASS_CLK,
  55. .of_match = v3s_clk_ids,
  56. .priv_auto_alloc_size = sizeof(struct ccu_priv),
  57. .ops = &sunxi_clk_ops,
  58. .probe = sunxi_clk_probe,
  59. .bind = v3s_clk_bind,
  60. };