clk-54xx.c 12 KB

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  1. /*
  2. * OMAP5 Clock init
  3. *
  4. * Copyright (C) 2013 Texas Instruments, Inc.
  5. *
  6. * Tero Kristo (t-kristo@ti.com)
  7. *
  8. * This program is free software; you can redistribute it and/or modify
  9. * it under the terms of the GNU General Public License version 2 as
  10. * published by the Free Software Foundation.
  11. */
  12. #include <linux/kernel.h>
  13. #include <linux/list.h>
  14. #include <linux/clk.h>
  15. #include <linux/clkdev.h>
  16. #include <linux/io.h>
  17. #include <linux/clk/ti.h>
  18. #include "clock.h"
  19. #define OMAP5_DPLL_ABE_DEFFREQ 98304000
  20. /*
  21. * OMAP543x TRM, section "3.6.3.9.5 DPLL_USB Preferred Settings"
  22. * states it must be at 960MHz
  23. */
  24. #define OMAP5_DPLL_USB_DEFFREQ 960000000
  25. static struct ti_dt_clk omap54xx_clks[] = {
  26. DT_CLK(NULL, "pad_clks_src_ck", "pad_clks_src_ck"),
  27. DT_CLK(NULL, "pad_clks_ck", "pad_clks_ck"),
  28. DT_CLK(NULL, "secure_32k_clk_src_ck", "secure_32k_clk_src_ck"),
  29. DT_CLK(NULL, "slimbus_src_clk", "slimbus_src_clk"),
  30. DT_CLK(NULL, "slimbus_clk", "slimbus_clk"),
  31. DT_CLK(NULL, "sys_32k_ck", "sys_32k_ck"),
  32. DT_CLK(NULL, "virt_12000000_ck", "virt_12000000_ck"),
  33. DT_CLK(NULL, "virt_13000000_ck", "virt_13000000_ck"),
  34. DT_CLK(NULL, "virt_16800000_ck", "virt_16800000_ck"),
  35. DT_CLK(NULL, "virt_19200000_ck", "virt_19200000_ck"),
  36. DT_CLK(NULL, "virt_26000000_ck", "virt_26000000_ck"),
  37. DT_CLK(NULL, "virt_27000000_ck", "virt_27000000_ck"),
  38. DT_CLK(NULL, "virt_38400000_ck", "virt_38400000_ck"),
  39. DT_CLK(NULL, "sys_clkin", "sys_clkin"),
  40. DT_CLK(NULL, "xclk60mhsp1_ck", "xclk60mhsp1_ck"),
  41. DT_CLK(NULL, "xclk60mhsp2_ck", "xclk60mhsp2_ck"),
  42. DT_CLK(NULL, "abe_dpll_bypass_clk_mux", "abe_dpll_bypass_clk_mux"),
  43. DT_CLK(NULL, "abe_dpll_clk_mux", "abe_dpll_clk_mux"),
  44. DT_CLK(NULL, "dpll_abe_ck", "dpll_abe_ck"),
  45. DT_CLK(NULL, "dpll_abe_x2_ck", "dpll_abe_x2_ck"),
  46. DT_CLK(NULL, "dpll_abe_m2x2_ck", "dpll_abe_m2x2_ck"),
  47. DT_CLK(NULL, "abe_24m_fclk", "abe_24m_fclk"),
  48. DT_CLK(NULL, "abe_clk", "abe_clk"),
  49. DT_CLK(NULL, "abe_iclk", "abe_iclk"),
  50. DT_CLK(NULL, "abe_lp_clk_div", "abe_lp_clk_div"),
  51. DT_CLK(NULL, "dpll_abe_m3x2_ck", "dpll_abe_m3x2_ck"),
  52. DT_CLK(NULL, "dpll_core_ck", "dpll_core_ck"),
  53. DT_CLK(NULL, "dpll_core_x2_ck", "dpll_core_x2_ck"),
  54. DT_CLK(NULL, "dpll_core_h21x2_ck", "dpll_core_h21x2_ck"),
  55. DT_CLK(NULL, "c2c_fclk", "c2c_fclk"),
  56. DT_CLK(NULL, "c2c_iclk", "c2c_iclk"),
  57. DT_CLK(NULL, "custefuse_sys_gfclk_div", "custefuse_sys_gfclk_div"),
  58. DT_CLK(NULL, "dpll_core_h11x2_ck", "dpll_core_h11x2_ck"),
  59. DT_CLK(NULL, "dpll_core_h12x2_ck", "dpll_core_h12x2_ck"),
  60. DT_CLK(NULL, "dpll_core_h13x2_ck", "dpll_core_h13x2_ck"),
  61. DT_CLK(NULL, "dpll_core_h14x2_ck", "dpll_core_h14x2_ck"),
  62. DT_CLK(NULL, "dpll_core_h22x2_ck", "dpll_core_h22x2_ck"),
  63. DT_CLK(NULL, "dpll_core_h23x2_ck", "dpll_core_h23x2_ck"),
  64. DT_CLK(NULL, "dpll_core_h24x2_ck", "dpll_core_h24x2_ck"),
  65. DT_CLK(NULL, "dpll_core_m2_ck", "dpll_core_m2_ck"),
  66. DT_CLK(NULL, "dpll_core_m3x2_ck", "dpll_core_m3x2_ck"),
  67. DT_CLK(NULL, "iva_dpll_hs_clk_div", "iva_dpll_hs_clk_div"),
  68. DT_CLK(NULL, "dpll_iva_ck", "dpll_iva_ck"),
  69. DT_CLK(NULL, "dpll_iva_x2_ck", "dpll_iva_x2_ck"),
  70. DT_CLK(NULL, "dpll_iva_h11x2_ck", "dpll_iva_h11x2_ck"),
  71. DT_CLK(NULL, "dpll_iva_h12x2_ck", "dpll_iva_h12x2_ck"),
  72. DT_CLK(NULL, "mpu_dpll_hs_clk_div", "mpu_dpll_hs_clk_div"),
  73. DT_CLK(NULL, "dpll_mpu_ck", "dpll_mpu_ck"),
  74. DT_CLK(NULL, "dpll_mpu_m2_ck", "dpll_mpu_m2_ck"),
  75. DT_CLK(NULL, "per_dpll_hs_clk_div", "per_dpll_hs_clk_div"),
  76. DT_CLK(NULL, "dpll_per_ck", "dpll_per_ck"),
  77. DT_CLK(NULL, "dpll_per_x2_ck", "dpll_per_x2_ck"),
  78. DT_CLK(NULL, "dpll_per_h11x2_ck", "dpll_per_h11x2_ck"),
  79. DT_CLK(NULL, "dpll_per_h12x2_ck", "dpll_per_h12x2_ck"),
  80. DT_CLK(NULL, "dpll_per_h14x2_ck", "dpll_per_h14x2_ck"),
  81. DT_CLK(NULL, "dpll_per_m2_ck", "dpll_per_m2_ck"),
  82. DT_CLK(NULL, "dpll_per_m2x2_ck", "dpll_per_m2x2_ck"),
  83. DT_CLK(NULL, "dpll_per_m3x2_ck", "dpll_per_m3x2_ck"),
  84. DT_CLK(NULL, "dpll_unipro1_ck", "dpll_unipro1_ck"),
  85. DT_CLK(NULL, "dpll_unipro1_clkdcoldo", "dpll_unipro1_clkdcoldo"),
  86. DT_CLK(NULL, "dpll_unipro1_m2_ck", "dpll_unipro1_m2_ck"),
  87. DT_CLK(NULL, "dpll_unipro2_ck", "dpll_unipro2_ck"),
  88. DT_CLK(NULL, "dpll_unipro2_clkdcoldo", "dpll_unipro2_clkdcoldo"),
  89. DT_CLK(NULL, "dpll_unipro2_m2_ck", "dpll_unipro2_m2_ck"),
  90. DT_CLK(NULL, "usb_dpll_hs_clk_div", "usb_dpll_hs_clk_div"),
  91. DT_CLK(NULL, "dpll_usb_ck", "dpll_usb_ck"),
  92. DT_CLK(NULL, "dpll_usb_clkdcoldo", "dpll_usb_clkdcoldo"),
  93. DT_CLK(NULL, "dpll_usb_m2_ck", "dpll_usb_m2_ck"),
  94. DT_CLK(NULL, "dss_syc_gfclk_div", "dss_syc_gfclk_div"),
  95. DT_CLK(NULL, "func_128m_clk", "func_128m_clk"),
  96. DT_CLK(NULL, "func_12m_fclk", "func_12m_fclk"),
  97. DT_CLK(NULL, "func_24m_clk", "func_24m_clk"),
  98. DT_CLK(NULL, "func_48m_fclk", "func_48m_fclk"),
  99. DT_CLK(NULL, "func_96m_fclk", "func_96m_fclk"),
  100. DT_CLK(NULL, "l3_iclk_div", "l3_iclk_div"),
  101. DT_CLK(NULL, "gpu_l3_iclk", "gpu_l3_iclk"),
  102. DT_CLK(NULL, "l3init_60m_fclk", "l3init_60m_fclk"),
  103. DT_CLK(NULL, "wkupaon_iclk_mux", "wkupaon_iclk_mux"),
  104. DT_CLK(NULL, "l3instr_ts_gclk_div", "l3instr_ts_gclk_div"),
  105. DT_CLK(NULL, "l4_root_clk_div", "l4_root_clk_div"),
  106. DT_CLK(NULL, "dss_32khz_clk", "dss_32khz_clk"),
  107. DT_CLK(NULL, "dss_48mhz_clk", "dss_48mhz_clk"),
  108. DT_CLK(NULL, "dss_dss_clk", "dss_dss_clk"),
  109. DT_CLK(NULL, "dss_sys_clk", "dss_sys_clk"),
  110. DT_CLK(NULL, "gpio1_dbclk", "gpio1_dbclk"),
  111. DT_CLK(NULL, "gpio2_dbclk", "gpio2_dbclk"),
  112. DT_CLK(NULL, "gpio3_dbclk", "gpio3_dbclk"),
  113. DT_CLK(NULL, "gpio4_dbclk", "gpio4_dbclk"),
  114. DT_CLK(NULL, "gpio5_dbclk", "gpio5_dbclk"),
  115. DT_CLK(NULL, "gpio6_dbclk", "gpio6_dbclk"),
  116. DT_CLK(NULL, "gpio7_dbclk", "gpio7_dbclk"),
  117. DT_CLK(NULL, "gpio8_dbclk", "gpio8_dbclk"),
  118. DT_CLK(NULL, "iss_ctrlclk", "iss_ctrlclk"),
  119. DT_CLK(NULL, "lli_txphy_clk", "lli_txphy_clk"),
  120. DT_CLK(NULL, "lli_txphy_ls_clk", "lli_txphy_ls_clk"),
  121. DT_CLK(NULL, "mmc1_32khz_clk", "mmc1_32khz_clk"),
  122. DT_CLK(NULL, "sata_ref_clk", "sata_ref_clk"),
  123. DT_CLK(NULL, "slimbus1_slimbus_clk", "slimbus1_slimbus_clk"),
  124. DT_CLK(NULL, "usb_host_hs_hsic480m_p1_clk", "usb_host_hs_hsic480m_p1_clk"),
  125. DT_CLK(NULL, "usb_host_hs_hsic480m_p2_clk", "usb_host_hs_hsic480m_p2_clk"),
  126. DT_CLK(NULL, "usb_host_hs_hsic480m_p3_clk", "usb_host_hs_hsic480m_p3_clk"),
  127. DT_CLK(NULL, "usb_host_hs_hsic60m_p1_clk", "usb_host_hs_hsic60m_p1_clk"),
  128. DT_CLK(NULL, "usb_host_hs_hsic60m_p2_clk", "usb_host_hs_hsic60m_p2_clk"),
  129. DT_CLK(NULL, "usb_host_hs_hsic60m_p3_clk", "usb_host_hs_hsic60m_p3_clk"),
  130. DT_CLK(NULL, "usb_host_hs_utmi_p1_clk", "usb_host_hs_utmi_p1_clk"),
  131. DT_CLK(NULL, "usb_host_hs_utmi_p2_clk", "usb_host_hs_utmi_p2_clk"),
  132. DT_CLK(NULL, "usb_host_hs_utmi_p3_clk", "usb_host_hs_utmi_p3_clk"),
  133. DT_CLK(NULL, "usb_otg_ss_refclk960m", "usb_otg_ss_refclk960m"),
  134. DT_CLK(NULL, "usb_phy_cm_clk32k", "usb_phy_cm_clk32k"),
  135. DT_CLK(NULL, "usb_tll_hs_usb_ch0_clk", "usb_tll_hs_usb_ch0_clk"),
  136. DT_CLK(NULL, "usb_tll_hs_usb_ch1_clk", "usb_tll_hs_usb_ch1_clk"),
  137. DT_CLK(NULL, "usb_tll_hs_usb_ch2_clk", "usb_tll_hs_usb_ch2_clk"),
  138. DT_CLK(NULL, "aess_fclk", "aess_fclk"),
  139. DT_CLK(NULL, "dmic_sync_mux_ck", "dmic_sync_mux_ck"),
  140. DT_CLK(NULL, "dmic_gfclk", "dmic_gfclk"),
  141. DT_CLK(NULL, "fdif_fclk", "fdif_fclk"),
  142. DT_CLK(NULL, "gpu_core_gclk_mux", "gpu_core_gclk_mux"),
  143. DT_CLK(NULL, "gpu_hyd_gclk_mux", "gpu_hyd_gclk_mux"),
  144. DT_CLK(NULL, "hsi_fclk", "hsi_fclk"),
  145. DT_CLK(NULL, "mcasp_sync_mux_ck", "mcasp_sync_mux_ck"),
  146. DT_CLK(NULL, "mcasp_gfclk", "mcasp_gfclk"),
  147. DT_CLK(NULL, "mcbsp1_sync_mux_ck", "mcbsp1_sync_mux_ck"),
  148. DT_CLK(NULL, "mcbsp1_gfclk", "mcbsp1_gfclk"),
  149. DT_CLK(NULL, "mcbsp2_sync_mux_ck", "mcbsp2_sync_mux_ck"),
  150. DT_CLK(NULL, "mcbsp2_gfclk", "mcbsp2_gfclk"),
  151. DT_CLK(NULL, "mcbsp3_sync_mux_ck", "mcbsp3_sync_mux_ck"),
  152. DT_CLK(NULL, "mcbsp3_gfclk", "mcbsp3_gfclk"),
  153. DT_CLK(NULL, "mmc1_fclk_mux", "mmc1_fclk_mux"),
  154. DT_CLK(NULL, "mmc1_fclk", "mmc1_fclk"),
  155. DT_CLK(NULL, "mmc2_fclk_mux", "mmc2_fclk_mux"),
  156. DT_CLK(NULL, "mmc2_fclk", "mmc2_fclk"),
  157. DT_CLK(NULL, "timer10_gfclk_mux", "timer10_gfclk_mux"),
  158. DT_CLK(NULL, "timer11_gfclk_mux", "timer11_gfclk_mux"),
  159. DT_CLK(NULL, "timer1_gfclk_mux", "timer1_gfclk_mux"),
  160. DT_CLK(NULL, "timer2_gfclk_mux", "timer2_gfclk_mux"),
  161. DT_CLK(NULL, "timer3_gfclk_mux", "timer3_gfclk_mux"),
  162. DT_CLK(NULL, "timer4_gfclk_mux", "timer4_gfclk_mux"),
  163. DT_CLK(NULL, "timer5_gfclk_mux", "timer5_gfclk_mux"),
  164. DT_CLK(NULL, "timer6_gfclk_mux", "timer6_gfclk_mux"),
  165. DT_CLK(NULL, "timer7_gfclk_mux", "timer7_gfclk_mux"),
  166. DT_CLK(NULL, "timer8_gfclk_mux", "timer8_gfclk_mux"),
  167. DT_CLK(NULL, "timer9_gfclk_mux", "timer9_gfclk_mux"),
  168. DT_CLK(NULL, "utmi_p1_gfclk", "utmi_p1_gfclk"),
  169. DT_CLK(NULL, "utmi_p2_gfclk", "utmi_p2_gfclk"),
  170. DT_CLK(NULL, "auxclk0_src_ck", "auxclk0_src_ck"),
  171. DT_CLK(NULL, "auxclk0_ck", "auxclk0_ck"),
  172. DT_CLK(NULL, "auxclkreq0_ck", "auxclkreq0_ck"),
  173. DT_CLK(NULL, "auxclk1_src_ck", "auxclk1_src_ck"),
  174. DT_CLK(NULL, "auxclk1_ck", "auxclk1_ck"),
  175. DT_CLK(NULL, "auxclkreq1_ck", "auxclkreq1_ck"),
  176. DT_CLK(NULL, "auxclk2_src_ck", "auxclk2_src_ck"),
  177. DT_CLK(NULL, "auxclk2_ck", "auxclk2_ck"),
  178. DT_CLK(NULL, "auxclkreq2_ck", "auxclkreq2_ck"),
  179. DT_CLK(NULL, "auxclk3_src_ck", "auxclk3_src_ck"),
  180. DT_CLK(NULL, "auxclk3_ck", "auxclk3_ck"),
  181. DT_CLK(NULL, "auxclkreq3_ck", "auxclkreq3_ck"),
  182. DT_CLK("omap_i2c.1", "ick", "dummy_ck"),
  183. DT_CLK("omap_i2c.2", "ick", "dummy_ck"),
  184. DT_CLK("omap_i2c.3", "ick", "dummy_ck"),
  185. DT_CLK("omap_i2c.4", "ick", "dummy_ck"),
  186. DT_CLK(NULL, "mailboxes_ick", "dummy_ck"),
  187. DT_CLK("omap_hsmmc.0", "ick", "dummy_ck"),
  188. DT_CLK("omap_hsmmc.1", "ick", "dummy_ck"),
  189. DT_CLK("omap_hsmmc.2", "ick", "dummy_ck"),
  190. DT_CLK("omap_hsmmc.3", "ick", "dummy_ck"),
  191. DT_CLK("omap_hsmmc.4", "ick", "dummy_ck"),
  192. DT_CLK("omap-mcbsp.1", "ick", "dummy_ck"),
  193. DT_CLK("omap-mcbsp.2", "ick", "dummy_ck"),
  194. DT_CLK("omap-mcbsp.3", "ick", "dummy_ck"),
  195. DT_CLK("omap-mcbsp.4", "ick", "dummy_ck"),
  196. DT_CLK("omap2_mcspi.1", "ick", "dummy_ck"),
  197. DT_CLK("omap2_mcspi.2", "ick", "dummy_ck"),
  198. DT_CLK("omap2_mcspi.3", "ick", "dummy_ck"),
  199. DT_CLK("omap2_mcspi.4", "ick", "dummy_ck"),
  200. DT_CLK(NULL, "uart1_ick", "dummy_ck"),
  201. DT_CLK(NULL, "uart2_ick", "dummy_ck"),
  202. DT_CLK(NULL, "uart3_ick", "dummy_ck"),
  203. DT_CLK(NULL, "uart4_ick", "dummy_ck"),
  204. DT_CLK("usbhs_omap", "usbhost_ick", "dummy_ck"),
  205. DT_CLK("usbhs_omap", "usbtll_fck", "dummy_ck"),
  206. DT_CLK("omap_wdt", "ick", "dummy_ck"),
  207. DT_CLK(NULL, "timer_32k_ck", "sys_32k_ck"),
  208. DT_CLK(NULL, "sys_clkin_ck", "sys_clkin"),
  209. DT_CLK("4ae18000.timer", "timer_sys_ck", "sys_clkin"),
  210. DT_CLK("48032000.timer", "timer_sys_ck", "sys_clkin"),
  211. DT_CLK("48034000.timer", "timer_sys_ck", "sys_clkin"),
  212. DT_CLK("48036000.timer", "timer_sys_ck", "sys_clkin"),
  213. DT_CLK("4803e000.timer", "timer_sys_ck", "sys_clkin"),
  214. DT_CLK("48086000.timer", "timer_sys_ck", "sys_clkin"),
  215. DT_CLK("48088000.timer", "timer_sys_ck", "sys_clkin"),
  216. DT_CLK("40138000.timer", "timer_sys_ck", "dss_syc_gfclk_div"),
  217. DT_CLK("4013a000.timer", "timer_sys_ck", "dss_syc_gfclk_div"),
  218. DT_CLK("4013c000.timer", "timer_sys_ck", "dss_syc_gfclk_div"),
  219. DT_CLK("4013e000.timer", "timer_sys_ck", "dss_syc_gfclk_div"),
  220. { .node_name = NULL },
  221. };
  222. int __init omap5xxx_dt_clk_init(void)
  223. {
  224. int rc;
  225. struct clk *abe_dpll_ref, *abe_dpll, *sys_32k_ck, *usb_dpll;
  226. ti_dt_clocks_register(omap54xx_clks);
  227. omap2_clk_disable_autoidle_all();
  228. abe_dpll_ref = clk_get_sys(NULL, "abe_dpll_clk_mux");
  229. sys_32k_ck = clk_get_sys(NULL, "sys_32k_ck");
  230. rc = clk_set_parent(abe_dpll_ref, sys_32k_ck);
  231. abe_dpll = clk_get_sys(NULL, "dpll_abe_ck");
  232. if (!rc)
  233. rc = clk_set_rate(abe_dpll, OMAP5_DPLL_ABE_DEFFREQ);
  234. if (rc)
  235. pr_err("%s: failed to configure ABE DPLL!\n", __func__);
  236. abe_dpll = clk_get_sys(NULL, "dpll_abe_m2x2_ck");
  237. if (!rc)
  238. rc = clk_set_rate(abe_dpll, OMAP5_DPLL_ABE_DEFFREQ * 2);
  239. if (rc)
  240. pr_err("%s: failed to configure ABE m2x2 DPLL!\n", __func__);
  241. usb_dpll = clk_get_sys(NULL, "dpll_usb_ck");
  242. rc = clk_set_rate(usb_dpll, OMAP5_DPLL_USB_DEFFREQ);
  243. if (rc)
  244. pr_err("%s: failed to configure USB DPLL!\n", __func__);
  245. usb_dpll = clk_get_sys(NULL, "dpll_usb_m2_ck");
  246. rc = clk_set_rate(usb_dpll, OMAP5_DPLL_USB_DEFFREQ/2);
  247. if (rc)
  248. pr_err("%s: failed to set USB_DPLL M2 OUT\n", __func__);
  249. return 0;
  250. }