clk-816x.c 3.0 KB

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  1. // SPDX-License-Identifier: GPL-2.0-only
  2. #include <linux/kernel.h>
  3. #include <linux/list.h>
  4. #include <linux/clk-provider.h>
  5. #include <linux/clk/ti.h>
  6. #include <dt-bindings/clock/dm816.h>
  7. #include "clock.h"
  8. static const struct omap_clkctrl_reg_data dm816_default_clkctrl_regs[] __initconst = {
  9. { DM816_USB_OTG_HS_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk6_ck" },
  10. { 0 },
  11. };
  12. static const struct omap_clkctrl_reg_data dm816_alwon_clkctrl_regs[] __initconst = {
  13. { DM816_UART1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" },
  14. { DM816_UART2_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" },
  15. { DM816_UART3_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" },
  16. { DM816_GPIO1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk6_ck" },
  17. { DM816_GPIO2_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk6_ck" },
  18. { DM816_I2C1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" },
  19. { DM816_I2C2_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" },
  20. { DM816_TIMER1_CLKCTRL, NULL, CLKF_SW_SUP, "timer1_fck" },
  21. { DM816_TIMER2_CLKCTRL, NULL, CLKF_SW_SUP, "timer2_fck" },
  22. { DM816_TIMER3_CLKCTRL, NULL, CLKF_SW_SUP, "timer3_fck" },
  23. { DM816_TIMER4_CLKCTRL, NULL, CLKF_SW_SUP, "timer4_fck" },
  24. { DM816_TIMER5_CLKCTRL, NULL, CLKF_SW_SUP, "timer5_fck" },
  25. { DM816_TIMER6_CLKCTRL, NULL, CLKF_SW_SUP, "timer6_fck" },
  26. { DM816_TIMER7_CLKCTRL, NULL, CLKF_SW_SUP, "timer7_fck" },
  27. { DM816_WD_TIMER_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_NO_IDLEST, "sysclk18_ck" },
  28. { DM816_MCSPI1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" },
  29. { DM816_MAILBOX_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk6_ck" },
  30. { DM816_SPINBOX_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk6_ck" },
  31. { DM816_MMC1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" },
  32. { DM816_GPMC_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk6_ck" },
  33. { DM816_DAVINCI_MDIO_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_NO_IDLEST, "sysclk24_ck" },
  34. { DM816_EMAC1_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_NO_IDLEST, "sysclk24_ck" },
  35. { DM816_MPU_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk2_ck" },
  36. { DM816_RTC_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_NO_IDLEST, "sysclk18_ck" },
  37. { DM816_TPCC_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk4_ck" },
  38. { DM816_TPTC0_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk4_ck" },
  39. { DM816_TPTC1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk4_ck" },
  40. { DM816_TPTC2_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk4_ck" },
  41. { DM816_TPTC3_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk4_ck" },
  42. { 0 },
  43. };
  44. const struct omap_clkctrl_data dm816_clkctrl_data[] __initconst = {
  45. { 0x48180500, dm816_default_clkctrl_regs },
  46. { 0x48181400, dm816_alwon_clkctrl_regs },
  47. { 0 },
  48. };
  49. static struct ti_dt_clk dm816x_clks[] = {
  50. DT_CLK(NULL, "sys_clkin", "sys_clkin_ck"),
  51. DT_CLK(NULL, "timer_sys_ck", "sys_clkin_ck"),
  52. DT_CLK(NULL, "timer_32k_ck", "sysclk18_ck"),
  53. DT_CLK(NULL, "timer_ext_ck", "tclkin_ck"),
  54. { .node_name = NULL },
  55. };
  56. static const char *enable_init_clks[] = {
  57. "ddr_pll_clk1",
  58. "ddr_pll_clk2",
  59. "ddr_pll_clk3",
  60. "sysclk6_ck",
  61. };
  62. int __init dm816x_dt_clk_init(void)
  63. {
  64. ti_dt_clocks_register(dm816x_clks);
  65. omap2_clk_disable_autoidle_all();
  66. ti_clk_add_aliases();
  67. omap2_clk_enable_init_clocks(enable_init_clks,
  68. ARRAY_SIZE(enable_init_clks));
  69. return 0;
  70. }