arch/arm/mach-imx/mx7/clock_slice.c

   1 /*
   2  * Copyright (C) 2015 Freescale Semiconductor, Inc.
   3  *
   4  * Author:
   5  *      Peng Fan <Peng.Fan@freescale.com>
   6  *
   7  * SPDX-License-Identifier:     GPL-2.0+
   8  */
   9
  10 #include <common.h>
  11 #include <div64.h>
  12 #include <asm/io.h>
  13 #include <linux/errno.h>
  14 #include <asm/arch/imx-regs.h>
  15 #include <asm/arch/crm_regs.h>
  16 #include <asm/arch/clock.h>
  17 #include <asm/arch/sys_proto.h>
  18
  19 struct mxc_ccm_reg *imx_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
  20
  21 static struct clk_root_map root_array[] = {
  22         {ARM_A7_CLK_ROOT, CCM_CORE_CHANNEL,
  23          {OSC_24M_CLK, PLL_ARM_MAIN_800M_CLK, PLL_ENET_MAIN_500M_CLK,
  24           PLL_DRAM_MAIN_1066M_CLK, PLL_SYS_MAIN_480M_CLK,
  25           PLL_SYS_PFD0_392M_CLK, PLL_AUDIO_MAIN_CLK, PLL_USB_MAIN_480M_CLK}
  26         },
  27         {ARM_M4_CLK_ROOT, CCM_BUS_CHANNEL,
  28          {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_250M_CLK,
  29           PLL_SYS_PFD2_270M_CLK, PLL_DRAM_MAIN_533M_CLK, PLL_AUDIO_MAIN_CLK,
  30           PLL_VIDEO_MAIN_CLK, PLL_USB_MAIN_480M_CLK}
  31         },
  32         {ARM_M0_CLK_ROOT, CCM_BUS_CHANNEL,
  33          {OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_ENET_MAIN_125M_CLK,
  34           PLL_SYS_PFD2_135M_CLK, PLL_DRAM_MAIN_533M_CLK, PLL_AUDIO_MAIN_CLK,
  35           PLL_VIDEO_MAIN_CLK, PLL_USB_MAIN_480M_CLK}
  36         },
  37         {MAIN_AXI_CLK_ROOT, CCM_BUS_CHANNEL,
  38          {OSC_24M_CLK, PLL_SYS_PFD1_332M_CLK, PLL_DRAM_MAIN_533M_CLK,
  39           PLL_ENET_MAIN_250M_CLK, PLL_SYS_PFD5_CLK, PLL_AUDIO_MAIN_CLK,
  40           PLL_VIDEO_MAIN_CLK, PLL_SYS_PFD7_CLK}
  41         },
  42         {DISP_AXI_CLK_ROOT, CCM_BUS_CHANNEL,
  43          {OSC_24M_CLK, PLL_SYS_PFD1_332M_CLK, PLL_DRAM_MAIN_533M_CLK,
  44           PLL_ENET_MAIN_250M_CLK, PLL_SYS_PFD6_CLK, PLL_SYS_PFD7_CLK,
  45           PLL_AUDIO_MAIN_CLK, PLL_VIDEO_MAIN_CLK}
  46         },
  47         {ENET_AXI_CLK_ROOT, CCM_IP_CHANNEL,
  48          {OSC_24M_CLK, PLL_SYS_PFD2_270M_CLK, PLL_DRAM_MAIN_533M_CLK,
  49           PLL_ENET_MAIN_250M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_AUDIO_MAIN_CLK,
  50           PLL_VIDEO_MAIN_CLK, PLL_SYS_PFD4_CLK}
  51         },
  52         {NAND_USDHC_BUS_CLK_ROOT, CCM_IP_CHANNEL,
  53          {OSC_24M_CLK, PLL_SYS_PFD2_270M_CLK, PLL_DRAM_MAIN_533M_CLK,
  54           PLL_SYS_MAIN_240M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_PFD6_CLK,
  55           PLL_ENET_MAIN_250M_CLK, PLL_AUDIO_MAIN_CLK}
  56         },
  57         {AHB_CLK_ROOT, CCM_AHB_CHANNEL,
  58          {OSC_24M_CLK, PLL_SYS_PFD2_270M_CLK, PLL_DRAM_MAIN_533M_CLK,
  59           PLL_SYS_PFD0_392M_CLK, PLL_ENET_MAIN_125M_CLK, PLL_USB_MAIN_480M_CLK,
  60           PLL_AUDIO_MAIN_CLK, PLL_VIDEO_MAIN_CLK}
  61         },
  62         {DRAM_PHYM_CLK_ROOT, CCM_DRAM_PHYM_CHANNEL,
  63          {PLL_DRAM_MAIN_1066M_CLK, DRAM_PHYM_ALT_CLK_ROOT}
  64         },
  65         {DRAM_CLK_ROOT, CCM_DRAM_CHANNEL,
  66          {PLL_DRAM_MAIN_1066M_CLK, DRAM_ALT_CLK_ROOT}
  67         },
  68         {DRAM_PHYM_ALT_CLK_ROOT, CCM_IP_CHANNEL,
  69          {OSC_24M_CLK, PLL_DRAM_MAIN_533M_CLK, PLL_SYS_MAIN_480M_CLK,
  70           PLL_ENET_MAIN_500M_CLK, PLL_USB_MAIN_480M_CLK, PLL_SYS_PFD7_CLK,
  71           PLL_AUDIO_MAIN_CLK, PLL_VIDEO_MAIN_CLK}
  72         },
  73         {DRAM_ALT_CLK_ROOT, CCM_IP_CHANNEL,
  74          {OSC_24M_CLK, PLL_DRAM_MAIN_533M_CLK, PLL_SYS_MAIN_480M_CLK,
  75           PLL_ENET_MAIN_500M_CLK, PLL_ENET_MAIN_250M_CLK,
  76           PLL_SYS_PFD0_392M_CLK, PLL_AUDIO_MAIN_CLK, PLL_SYS_PFD2_270M_CLK}
  77         },
  78         {USB_HSIC_CLK_ROOT, CCM_IP_CHANNEL,
  79          {OSC_24M_CLK, PLL_SYS_MAIN_480M_CLK, PLL_USB_MAIN_480M_CLK,
  80           PLL_SYS_PFD3_CLK, PLL_SYS_PFD4_CLK, PLL_SYS_PFD5_CLK,
  81           PLL_SYS_PFD6_CLK, PLL_SYS_PFD7_CLK}
  82         },
  83         {PCIE_CTRL_CLK_ROOT, CCM_IP_CHANNEL,
  84          {OSC_24M_CLK, PLL_ENET_MAIN_250M_CLK, PLL_SYS_MAIN_240M_CLK,
  85           PLL_SYS_PFD2_270M_CLK, PLL_DRAM_MAIN_533M_CLK,
  86           PLL_ENET_MAIN_500M_CLK, PLL_SYS_PFD1_332M_CLK, PLL_SYS_PFD6_CLK}
  87         },
  88         {PCIE_PHY_CLK_ROOT, CCM_IP_CHANNEL,
  89          {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_ENET_MAIN_500M_CLK,
  90           EXT_CLK_1, EXT_CLK_2, EXT_CLK_3,
  91           EXT_CLK_4, PLL_SYS_PFD0_392M_CLK}
  92         },
  93         {EPDC_PIXEL_CLK_ROOT, CCM_IP_CHANNEL,
  94          {OSC_24M_CLK, PLL_SYS_PFD1_332M_CLK, PLL_DRAM_MAIN_533M_CLK,
  95           PLL_SYS_MAIN_480M_CLK, PLL_SYS_PFD5_CLK, PLL_SYS_PFD6_CLK,
  96           PLL_SYS_PFD7_CLK, PLL_VIDEO_MAIN_CLK}
  97         },
  98         {LCDIF_PIXEL_CLK_ROOT, CCM_IP_CHANNEL,
  99          {OSC_24M_CLK, PLL_SYS_PFD5_CLK, PLL_DRAM_MAIN_533M_CLK,
 100           EXT_CLK_3, PLL_SYS_PFD4_CLK, PLL_SYS_PFD2_270M_CLK,
 101           PLL_VIDEO_MAIN_CLK, PLL_USB_MAIN_480M_CLK}
 102         },
 103         {MIPI_DSI_EXTSER_CLK_ROOT, CCM_IP_CHANNEL,
 104          {OSC_24M_CLK, PLL_SYS_PFD5_CLK, PLL_SYS_PFD3_CLK,
 105           PLL_SYS_MAIN_480M_CLK, PLL_SYS_PFD0_196M_CLK, PLL_DRAM_MAIN_533M_CLK,
 106           PLL_VIDEO_MAIN_CLK, PLL_AUDIO_MAIN_CLK}
 107         },
 108         {MIPI_CSI_WARP_CLK_ROOT, CCM_IP_CHANNEL,
 109          {OSC_24M_CLK, PLL_SYS_PFD4_CLK, PLL_SYS_PFD3_CLK,
 110           PLL_SYS_MAIN_480M_CLK, PLL_SYS_PFD0_196M_CLK, PLL_DRAM_MAIN_533M_CLK,
 111           PLL_VIDEO_MAIN_CLK, PLL_AUDIO_MAIN_CLK}
 112         },
 113         {MIPI_DPHY_REF_CLK_ROOT, CCM_IP_CHANNEL,
 114          {OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_DRAM_MAIN_533M_CLK,
 115           PLL_SYS_PFD5_CLK, REF_1M_CLK, EXT_CLK_2,
 116           PLL_VIDEO_MAIN_CLK, EXT_CLK_3}
 117         },
 118         {SAI1_CLK_ROOT, CCM_IP_CHANNEL,
 119          {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_AUDIO_MAIN_CLK,
 120           PLL_DRAM_MAIN_533M_CLK, PLL_VIDEO_MAIN_CLK, PLL_SYS_PFD4_CLK,
 121           PLL_ENET_MAIN_125M_CLK, EXT_CLK_2}
 122         },
 123         {SAI2_CLK_ROOT, CCM_IP_CHANNEL,
 124          {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_AUDIO_MAIN_CLK,
 125           PLL_DRAM_MAIN_533M_CLK, PLL_VIDEO_MAIN_CLK, PLL_SYS_PFD4_CLK,
 126           PLL_ENET_MAIN_125M_CLK, EXT_CLK_2}
 127         },
 128         {SAI3_CLK_ROOT, CCM_IP_CHANNEL,
 129          {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_AUDIO_MAIN_CLK,
 130           PLL_DRAM_MAIN_533M_CLK, PLL_VIDEO_MAIN_CLK, PLL_SYS_PFD4_CLK,
 131           PLL_ENET_MAIN_125M_CLK, EXT_CLK_3}
 132         },
 133         {SPDIF_CLK_ROOT, CCM_IP_CHANNEL,
 134          {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_AUDIO_MAIN_CLK,
 135           PLL_DRAM_MAIN_533M_CLK, PLL_VIDEO_MAIN_CLK, PLL_SYS_PFD4_CLK,
 136           PLL_ENET_MAIN_125M_CLK, EXT_CLK_3}
 137         },
 138         {ENET1_REF_CLK_ROOT, CCM_IP_CHANNEL,
 139          {OSC_24M_CLK, PLL_ENET_MAIN_125M_CLK, PLL_ENET_MAIN_50M_CLK,
 140           PLL_ENET_MAIN_25M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_AUDIO_MAIN_CLK,
 141           PLL_VIDEO_MAIN_CLK, EXT_CLK_4}
 142         },
 143         {ENET1_TIME_CLK_ROOT, CCM_IP_CHANNEL,
 144          {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_AUDIO_MAIN_CLK,
 145           EXT_CLK_1, EXT_CLK_2, EXT_CLK_3,
 146           EXT_CLK_4, PLL_VIDEO_MAIN_CLK}
 147         },
 148         {ENET2_REF_CLK_ROOT, CCM_IP_CHANNEL,
 149          {OSC_24M_CLK, PLL_ENET_MAIN_125M_CLK, PLL_ENET_MAIN_50M_CLK,
 150           PLL_ENET_MAIN_25M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_AUDIO_MAIN_CLK,
 151           PLL_VIDEO_MAIN_CLK, EXT_CLK_4}
 152         },
 153         {ENET2_TIME_CLK_ROOT, CCM_IP_CHANNEL,
 154          {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_AUDIO_MAIN_CLK,
 155           EXT_CLK_1, EXT_CLK_2, EXT_CLK_3,
 156           EXT_CLK_4, PLL_VIDEO_MAIN_CLK}
 157         },
 158         {ENET_PHY_REF_CLK_ROOT, CCM_IP_CHANNEL,
 159          {OSC_24M_CLK, PLL_ENET_MAIN_25M_CLK, PLL_ENET_MAIN_50M_CLK,
 160           PLL_ENET_MAIN_125M_CLK, PLL_DRAM_MAIN_533M_CLK, PLL_AUDIO_MAIN_CLK,
 161           PLL_VIDEO_MAIN_CLK, PLL_SYS_PFD3_CLK}
 162         },
 163         {EIM_CLK_ROOT, CCM_IP_CHANNEL,
 164          {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_MAIN_120M_CLK,
 165           PLL_DRAM_MAIN_533M_CLK, PLL_SYS_PFD2_270M_CLK, PLL_SYS_PFD3_CLK,
 166           PLL_ENET_MAIN_125M_CLK, PLL_USB_MAIN_480M_CLK}
 167         },
 168         {NAND_CLK_ROOT, CCM_IP_CHANNEL,
 169          {OSC_24M_CLK, PLL_SYS_MAIN_480M_CLK, PLL_DRAM_MAIN_533M_CLK,
 170           PLL_SYS_PFD0_392M_CLK, PLL_SYS_PFD3_CLK, PLL_ENET_MAIN_500M_CLK,
 171           PLL_ENET_MAIN_250M_CLK, PLL_VIDEO_MAIN_CLK}
 172         },
 173         {QSPI_CLK_ROOT, CCM_IP_CHANNEL,
 174          {OSC_24M_CLK, PLL_SYS_PFD4_CLK, PLL_DRAM_MAIN_533M_CLK,
 175           PLL_ENET_MAIN_500M_CLK, PLL_SYS_PFD3_CLK, PLL_SYS_PFD2_270M_CLK,
 176           PLL_SYS_PFD6_CLK, PLL_SYS_PFD7_CLK}
 177         },
 178         {USDHC1_CLK_ROOT, CCM_IP_CHANNEL,
 179          {OSC_24M_CLK, PLL_SYS_PFD0_392M_CLK, PLL_DRAM_MAIN_533M_CLK,
 180           PLL_ENET_MAIN_500M_CLK, PLL_SYS_PFD4_CLK, PLL_SYS_PFD2_270M_CLK,
 181           PLL_SYS_PFD6_CLK, PLL_SYS_PFD7_CLK}
 182         },
 183         {USDHC2_CLK_ROOT, CCM_IP_CHANNEL,
 184          {OSC_24M_CLK, PLL_SYS_PFD0_392M_CLK, PLL_DRAM_MAIN_533M_CLK,
 185           PLL_ENET_MAIN_500M_CLK, PLL_SYS_PFD4_CLK, PLL_SYS_PFD2_270M_CLK,
 186           PLL_SYS_PFD6_CLK, PLL_SYS_PFD7_CLK}
 187         },
 188         {USDHC3_CLK_ROOT, CCM_IP_CHANNEL,
 189          {OSC_24M_CLK, PLL_SYS_PFD0_392M_CLK, PLL_DRAM_MAIN_533M_CLK,
 190           PLL_ENET_MAIN_500M_CLK, PLL_SYS_PFD4_CLK, PLL_SYS_PFD2_270M_CLK,
 191           PLL_SYS_PFD6_CLK, PLL_SYS_PFD7_CLK}
 192         },
 193         {CAN1_CLK_ROOT, CCM_IP_CHANNEL,
 194          {OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_DRAM_MAIN_533M_CLK,
 195           PLL_SYS_MAIN_480M_CLK, PLL_ENET_MAIN_40M_CLK, PLL_USB_MAIN_480M_CLK,
 196           EXT_CLK_1, EXT_CLK_4}
 197         },
 198         {CAN2_CLK_ROOT, CCM_IP_CHANNEL,
 199          {OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_DRAM_MAIN_533M_CLK,
 200           PLL_SYS_MAIN_480M_CLK, PLL_ENET_MAIN_40M_CLK, PLL_USB_MAIN_480M_CLK,
 201           EXT_CLK_1, EXT_CLK_3}
 202         },
 203         {I2C1_CLK_ROOT, CCM_IP_CHANNEL,
 204          {OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_ENET_MAIN_50M_CLK,
 205           PLL_DRAM_MAIN_533M_CLK, PLL_AUDIO_MAIN_CLK, PLL_VIDEO_MAIN_CLK,
 206           PLL_USB_MAIN_480M_CLK, PLL_SYS_PFD2_135M_CLK}
 207         },
 208         {I2C2_CLK_ROOT, CCM_IP_CHANNEL,
 209          {OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_ENET_MAIN_50M_CLK,
 210           PLL_DRAM_MAIN_533M_CLK, PLL_AUDIO_MAIN_CLK, PLL_VIDEO_MAIN_CLK,
 211           PLL_USB_MAIN_480M_CLK, PLL_SYS_PFD2_135M_CLK}
 212         },
 213         {I2C3_CLK_ROOT, CCM_IP_CHANNEL,
 214          {OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_ENET_MAIN_50M_CLK,
 215           PLL_DRAM_MAIN_533M_CLK, PLL_AUDIO_MAIN_CLK, PLL_VIDEO_MAIN_CLK,
 216           PLL_USB_MAIN_480M_CLK, PLL_SYS_PFD2_135M_CLK}
 217         },
 218         {I2C4_CLK_ROOT, CCM_IP_CHANNEL,
 219          {OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_ENET_MAIN_50M_CLK,
 220           PLL_DRAM_MAIN_533M_CLK, PLL_AUDIO_MAIN_CLK, PLL_VIDEO_MAIN_CLK,
 221           PLL_USB_MAIN_480M_CLK, PLL_SYS_PFD2_135M_CLK}
 222         },
 223         {UART1_CLK_ROOT, CCM_IP_CHANNEL,
 224          {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
 225           PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_480M_CLK, EXT_CLK_2,
 226           EXT_CLK_4, PLL_USB_MAIN_480M_CLK}
 227         },
 228         {UART2_CLK_ROOT, CCM_IP_CHANNEL,
 229          {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
 230           PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_480M_CLK, EXT_CLK_2,
 231           EXT_CLK_3, PLL_USB_MAIN_480M_CLK}
 232         },
 233         {UART3_CLK_ROOT, CCM_IP_CHANNEL,
 234          {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
 235           PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_480M_CLK, EXT_CLK_2,
 236           EXT_CLK_4, PLL_USB_MAIN_480M_CLK}
 237         },
 238         {UART4_CLK_ROOT, CCM_IP_CHANNEL,
 239          {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
 240           PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_480M_CLK, EXT_CLK_2,
 241           EXT_CLK_3, PLL_USB_MAIN_480M_CLK}
 242         },
 243         {UART5_CLK_ROOT, CCM_IP_CHANNEL,
 244          {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
 245           PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_480M_CLK, EXT_CLK_2,
 246           EXT_CLK_4, PLL_USB_MAIN_480M_CLK}
 247         },
 248         {UART6_CLK_ROOT, CCM_IP_CHANNEL,
 249          {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
 250           PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_480M_CLK, EXT_CLK_2,
 251           EXT_CLK_3, PLL_USB_MAIN_480M_CLK}
 252         },
 253         {UART7_CLK_ROOT, CCM_IP_CHANNEL,
 254          {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
 255           PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_480M_CLK, EXT_CLK_2,
 256           EXT_CLK_4, PLL_USB_MAIN_480M_CLK}
 257         },
 258         {ECSPI1_CLK_ROOT, CCM_IP_CHANNEL,
 259          {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
 260           PLL_SYS_MAIN_120M_CLK, PLL_SYS_MAIN_480M_CLK, PLL_SYS_PFD4_CLK,
 261           PLL_ENET_MAIN_250M_CLK, PLL_USB_MAIN_480M_CLK}
 262         },
 263         {ECSPI2_CLK_ROOT, CCM_IP_CHANNEL,
 264          {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
 265           PLL_SYS_MAIN_120M_CLK, PLL_SYS_MAIN_480M_CLK, PLL_SYS_PFD4_CLK,
 266           PLL_ENET_MAIN_250M_CLK, PLL_USB_MAIN_480M_CLK}
 267         },
 268         {ECSPI3_CLK_ROOT, CCM_IP_CHANNEL,
 269          {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
 270           PLL_SYS_MAIN_120M_CLK, PLL_SYS_MAIN_480M_CLK, PLL_SYS_PFD4_CLK,
 271           PLL_ENET_MAIN_250M_CLK, PLL_USB_MAIN_480M_CLK}
 272         },
 273         {ECSPI4_CLK_ROOT, CCM_IP_CHANNEL,
 274          {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
 275           PLL_SYS_MAIN_120M_CLK, PLL_SYS_MAIN_480M_CLK, PLL_SYS_PFD4_CLK,
 276           PLL_ENET_MAIN_250M_CLK, PLL_USB_MAIN_480M_CLK}
 277         },
 278         {PWM1_CLK_ROOT, CCM_IP_CHANNEL,
 279          {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_120M_CLK,
 280           PLL_ENET_MAIN_40M_CLK, PLL_AUDIO_MAIN_CLK, EXT_CLK_1,
 281           REF_1M_CLK, PLL_VIDEO_MAIN_CLK}
 282         },
 283         {PWM2_CLK_ROOT, CCM_IP_CHANNEL,
 284          {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_120M_CLK,
 285           PLL_ENET_MAIN_40M_CLK, PLL_AUDIO_MAIN_CLK, EXT_CLK_1,
 286           REF_1M_CLK, PLL_VIDEO_MAIN_CLK}
 287         },
 288         {PWM3_CLK_ROOT, CCM_IP_CHANNEL,
 289          {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_120M_CLK,
 290           PLL_ENET_MAIN_40M_CLK, PLL_AUDIO_MAIN_CLK, EXT_CLK_2,
 291           REF_1M_CLK, PLL_VIDEO_MAIN_CLK}
 292         },
 293         {PWM4_CLK_ROOT, CCM_IP_CHANNEL,
 294          {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_120M_CLK,
 295           PLL_ENET_MAIN_40M_CLK, PLL_AUDIO_MAIN_CLK, EXT_CLK_2,
 296           REF_1M_CLK, PLL_VIDEO_MAIN_CLK}
 297         },
 298         {FLEXTIMER1_CLK_ROOT, CCM_IP_CHANNEL,
 299          {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_120M_CLK,
 300           PLL_ENET_MAIN_40M_CLK, PLL_AUDIO_MAIN_CLK, EXT_CLK_3,
 301           REF_1M_CLK, PLL_VIDEO_MAIN_CLK}
 302         },
 303         {FLEXTIMER2_CLK_ROOT, CCM_IP_CHANNEL,
 304          {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_120M_CLK,
 305           PLL_ENET_MAIN_40M_CLK, PLL_AUDIO_MAIN_CLK, EXT_CLK_3,
 306           REF_1M_CLK, PLL_VIDEO_MAIN_CLK}
 307         },
 308         {SIM1_CLK_ROOT, CCM_IP_CHANNEL,
 309          {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_MAIN_120M_CLK,
 310           PLL_DRAM_MAIN_533M_CLK, PLL_USB_MAIN_480M_CLK, PLL_AUDIO_MAIN_CLK,
 311           PLL_ENET_MAIN_125M_CLK, PLL_SYS_PFD7_CLK}
 312         },
 313         {SIM2_CLK_ROOT, CCM_IP_CHANNEL,
 314          {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_MAIN_120M_CLK,
 315           PLL_DRAM_MAIN_533M_CLK, PLL_USB_MAIN_480M_CLK, PLL_VIDEO_MAIN_CLK,
 316           PLL_ENET_MAIN_125M_CLK, PLL_SYS_PFD7_CLK}
 317         },
 318         {GPT1_CLK_ROOT, CCM_IP_CHANNEL,
 319          {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_PFD0_392M_CLK,
 320           PLL_ENET_MAIN_40M_CLK, PLL_VIDEO_MAIN_CLK, REF_1M_CLK,
 321           PLL_AUDIO_MAIN_CLK, EXT_CLK_1}
 322         },
 323         {GPT2_CLK_ROOT, CCM_IP_CHANNEL,
 324          {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_PFD0_392M_CLK,
 325           PLL_ENET_MAIN_40M_CLK, PLL_VIDEO_MAIN_CLK, REF_1M_CLK,
 326           PLL_AUDIO_MAIN_CLK, EXT_CLK_2}
 327         },
 328         {GPT3_CLK_ROOT, CCM_IP_CHANNEL,
 329          {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_PFD0_392M_CLK,
 330           PLL_ENET_MAIN_40M_CLK, PLL_VIDEO_MAIN_CLK, REF_1M_CLK,
 331           PLL_AUDIO_MAIN_CLK, EXT_CLK_3}
 332         },
 333         {GPT4_CLK_ROOT, CCM_IP_CHANNEL,
 334          {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_PFD0_392M_CLK,
 335           PLL_ENET_MAIN_40M_CLK, PLL_VIDEO_MAIN_CLK, REF_1M_CLK,
 336           PLL_AUDIO_MAIN_CLK, EXT_CLK_4}
 337         },
 338         {TRACE_CLK_ROOT, CCM_IP_CHANNEL,
 339          {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_MAIN_120M_CLK,
 340           PLL_DRAM_MAIN_533M_CLK, PLL_ENET_MAIN_125M_CLK, PLL_USB_MAIN_480M_CLK,
 341           EXT_CLK_1, EXT_CLK_3}
 342         },
 343         {WDOG_CLK_ROOT, CCM_IP_CHANNEL,
 344          {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_MAIN_120M_CLK,
 345           PLL_DRAM_MAIN_533M_CLK, PLL_ENET_MAIN_125M_CLK, PLL_USB_MAIN_480M_CLK,
 346           REF_1M_CLK, PLL_SYS_PFD1_166M_CLK}
 347         },
 348         {CSI_MCLK_CLK_ROOT, CCM_IP_CHANNEL,
 349          {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_MAIN_120M_CLK,
 350           PLL_DRAM_MAIN_533M_CLK, PLL_ENET_MAIN_125M_CLK, PLL_AUDIO_MAIN_CLK,
 351           PLL_VIDEO_MAIN_CLK, PLL_USB_MAIN_480M_CLK}
 352         },
 353         {AUDIO_MCLK_CLK_ROOT, CCM_IP_CHANNEL,
 354          {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_MAIN_120M_CLK,
 355           PLL_DRAM_MAIN_533M_CLK, PLL_ENET_MAIN_125M_CLK, PLL_AUDIO_MAIN_CLK,
 356           PLL_VIDEO_MAIN_CLK, PLL_USB_MAIN_480M_CLK}
 357         },
 358         {WRCLK_CLK_ROOT, CCM_IP_CHANNEL,
 359          {OSC_24M_CLK, PLL_ENET_MAIN_40M_CLK, PLL_DRAM_MAIN_533M_CLK,
 360           PLL_USB_MAIN_480M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_SYS_PFD2_270M_CLK,
 361           PLL_ENET_MAIN_500M_CLK, PLL_SYS_PFD7_CLK}
 362         },
 363         {IPP_DO_CLKO1, CCM_IP_CHANNEL,
 364          {OSC_24M_CLK, PLL_SYS_MAIN_480M_CLK, PLL_SYS_MAIN_240M_CLK,
 365           PLL_SYS_PFD0_196M_CLK, PLL_SYS_PFD3_CLK, PLL_ENET_MAIN_500M_CLK,
 366           PLL_DRAM_MAIN_533M_CLK, REF_1M_CLK}
 367         },
 368         {IPP_DO_CLKO2, CCM_IP_CHANNEL,
 369          {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_SYS_PFD0_392M_CLK,
 370           PLL_SYS_PFD1_166M_CLK, PLL_SYS_PFD4_CLK, PLL_AUDIO_MAIN_CLK,
 371           PLL_VIDEO_MAIN_CLK, OSC_32K_CLK}
 372         },
 373 };
 374
 375 /* select which entry of root_array */
 376 static int select(enum clk_root_index clock_id)
 377 {
 378         int i, size;
 379         struct clk_root_map *p = root_array;
 380
 381         size = ARRAY_SIZE(root_array);
 382
 383         for (i = 0; i < size; i++, p++) {
 384                 if (clock_id == p->entry)
 385                         return i;
 386         }
 387
 388         return -EINVAL;
 389 }
 390
 391 static int src_supported(int entry, enum clk_root_src clock_src)
 392 {
 393         int i, size;
 394         struct clk_root_map *p = &root_array[entry];
 395
 396         if ((p->type == CCM_DRAM_PHYM_CHANNEL) || (p->type == CCM_DRAM_CHANNEL))
 397                 size = 2;
 398         else
 399                 size = 8;
 400
 401         for (i = 0; i < size; i++) {
 402                 if (p->src_mux[i] == clock_src)
 403                         return i;
 404         }
 405
 406         return -EINVAL;
 407 }
 408
 409 /* Set src for clock root slice. */
 410 int clock_set_src(enum clk_root_index clock_id, enum clk_root_src clock_src)
 411 {
 412         int root_entry, src_entry;
 413         u32 reg;
 414
 415         if (clock_id >= CLK_ROOT_MAX)
 416                 return -EINVAL;
 417
 418         root_entry = select(clock_id);
 419         if (root_entry < 0)
 420                 return -EINVAL;
 421
 422         src_entry = src_supported(root_entry, clock_src);
 423         if (src_entry < 0)
 424                 return -EINVAL;
 425
 426         reg = __raw_readl(&imx_ccm->root[clock_id].target_root);
 427         reg &= ~CLK_ROOT_MUX_MASK;
 428         reg |= src_entry << CLK_ROOT_MUX_SHIFT;
 429         __raw_writel(reg, &imx_ccm->root[clock_id].target_root);
 430
 431         return 0;
 432 }
 433
 434 /* Get src of a clock root slice. */
 435 int clock_get_src(enum clk_root_index clock_id, enum clk_root_src *p_clock_src)
 436 {
 437         u32 val;
 438         int root_entry;
 439         struct clk_root_map *p;
 440
 441         if (clock_id >= CLK_ROOT_MAX)
 442                 return -EINVAL;
 443
 444         val = __raw_readl(&imx_ccm->root[clock_id].target_root);
 445         val &= CLK_ROOT_MUX_MASK;
 446         val >>= CLK_ROOT_MUX_SHIFT;
 447
 448         root_entry = select(clock_id);
 449         if (root_entry < 0)
 450                 return -EINVAL;
 451
 452         p = &root_array[root_entry];
 453         *p_clock_src = p->src_mux[val];
 454
 455         return 0;
 456 }
 457
 458 int clock_set_prediv(enum clk_root_index clock_id, enum root_pre_div pre_div)
 459 {
 460         int root_entry;
 461         struct clk_root_map *p;
 462         u32 reg;
 463
 464         if (clock_id >= CLK_ROOT_MAX)
 465                 return -EINVAL;
 466
 467         root_entry = select(clock_id);
 468         if (root_entry < 0)
 469                 return -EINVAL;
 470
 471         p = &root_array[root_entry];
 472
 473         if ((p->type == CCM_CORE_CHANNEL) ||
 474             (p->type == CCM_DRAM_PHYM_CHANNEL) ||
 475             (p->type == CCM_DRAM_CHANNEL)) {
 476                 if (pre_div != CLK_ROOT_PRE_DIV1) {
 477                         printf("Error pre div!\n");
 478                         return -EINVAL;
 479                 }
 480         }
 481
 482         reg = __raw_readl(&imx_ccm->root[clock_id].target_root);
 483         reg &= ~CLK_ROOT_PRE_DIV_MASK;
 484         reg |= pre_div << CLK_ROOT_PRE_DIV_SHIFT;
 485         __raw_writel(reg, &imx_ccm->root[clock_id].target_root);
 486
 487         return 0;
 488 }
 489
 490 int clock_get_prediv(enum clk_root_index clock_id, enum root_pre_div *pre_div)
 491 {
 492         u32 val;
 493         int root_entry;
 494         struct clk_root_map *p;
 495
 496         if (clock_id >= CLK_ROOT_MAX)
 497                 return -EINVAL;
 498
 499         root_entry = select(clock_id);
 500         if (root_entry < 0)
 501                 return -EINVAL;
 502
 503         p = &root_array[root_entry];
 504
 505         if ((p->type == CCM_CORE_CHANNEL) ||
 506             (p->type == CCM_DRAM_PHYM_CHANNEL) ||
 507             (p->type == CCM_DRAM_CHANNEL)) {
 508                 *pre_div = 0;
 509                 return 0;
 510         }
 511
 512         val = __raw_readl(&imx_ccm->root[clock_id].target_root);
 513         val &= CLK_ROOT_PRE_DIV_MASK;
 514         val >>= CLK_ROOT_PRE_DIV_SHIFT;
 515
 516         *pre_div = val;
 517
 518         return 0;
 519 }
 520
 521 int clock_set_postdiv(enum clk_root_index clock_id, enum root_post_div div)
 522 {
 523         u32 reg;
 524
 525         if (clock_id >= CLK_ROOT_MAX)
 526                 return -EINVAL;
 527
 528         if (clock_id == DRAM_PHYM_CLK_ROOT) {
 529                 if (div != CLK_ROOT_POST_DIV1) {
 530                         printf("Error post div!\n");
 531                         return -EINVAL;
 532                 }
 533         }
 534
 535         /* Only 3 bit post div. */
 536         if ((clock_id == DRAM_CLK_ROOT) && (div > CLK_ROOT_POST_DIV7)) {
 537                 printf("Error post div!\n");
 538                 return -EINVAL;
 539         }
 540
 541         reg = __raw_readl(&imx_ccm->root[clock_id].target_root);
 542         reg &= ~CLK_ROOT_POST_DIV_MASK;
 543         reg |= div << CLK_ROOT_POST_DIV_SHIFT;
 544         __raw_writel(reg, &imx_ccm->root[clock_id].target_root);
 545
 546         return 0;
 547 }
 548
 549 int clock_get_postdiv(enum clk_root_index clock_id, enum root_post_div *div)
 550 {
 551         u32 val;
 552
 553         if (clock_id >= CLK_ROOT_MAX)
 554                 return -EINVAL;
 555
 556         if (clock_id == DRAM_PHYM_CLK_ROOT) {
 557                 *div = 0;
 558                 return 0;
 559         }
 560
 561         val = __raw_readl(&imx_ccm->root[clock_id].target_root);
 562         if (clock_id == DRAM_CLK_ROOT)
 563                 val &= DRAM_CLK_ROOT_POST_DIV_MASK;
 564         else
 565                 val &= CLK_ROOT_POST_DIV_MASK;
 566         val >>= CLK_ROOT_POST_DIV_SHIFT;
 567
 568         *div = val;
 569
 570         return 0;
 571 }
 572
 573 int clock_set_autopostdiv(enum clk_root_index clock_id, enum root_auto_div div,
 574                           int auto_en)
 575 {
 576         u32 val;
 577         int root_entry;
 578         struct clk_root_map *p;
 579
 580         if (clock_id >= CLK_ROOT_MAX)
 581                 return -EINVAL;
 582
 583         root_entry = select(clock_id);
 584         if (root_entry < 0)
 585                 return -EINVAL;
 586
 587         p = &root_array[root_entry];
 588
 589         if ((p->type != CCM_BUS_CHANNEL) && (p->type != CCM_AHB_CHANNEL)) {
 590                 printf("Auto postdiv not supported.!\n");
 591                 return -EINVAL;
 592         }
 593
 594         /*
 595          * Each time only one filed can be changed, no use target_root_set.
 596          */
 597         val = __raw_readl(&imx_ccm->root[clock_id].target_root);
 598         val &= ~CLK_ROOT_AUTO_DIV_MASK;
 599         val |= (div << CLK_ROOT_AUTO_DIV_SHIFT);
 600
 601         if (auto_en)
 602                 val |= CLK_ROOT_AUTO_EN;
 603         else
 604                 val &= ~CLK_ROOT_AUTO_EN;
 605
 606         __raw_writel(val, &imx_ccm->root[clock_id].target_root);
 607
 608         return 0;
 609 }
 610
 611 int clock_get_autopostdiv(enum clk_root_index clock_id, enum root_auto_div *div,
 612                           int *auto_en)
 613 {
 614         u32 val;
 615         int root_entry;
 616         struct clk_root_map *p;
 617
 618         if (clock_id >= CLK_ROOT_MAX)
 619                 return -EINVAL;
 620
 621         root_entry = select(clock_id);
 622         if (root_entry < 0)
 623                 return -EINVAL;
 624
 625         p = &root_array[root_entry];
 626
 627         /*
 628          * Only bus/ahb channel supports auto div.
 629          * If unsupported, just set auto_en and div with 0.
 630          */
 631         if ((p->type != CCM_BUS_CHANNEL) && (p->type != CCM_AHB_CHANNEL)) {
 632                 *auto_en = 0;
 633                 *div = 0;
 634                 return 0;
 635         }
 636
 637         val = __raw_readl(&imx_ccm->root[clock_id].target_root);
 638         if ((val & CLK_ROOT_AUTO_EN_MASK) == 0)
 639                 *auto_en = 0;
 640         else
 641                 *auto_en = 1;
 642
 643         val &= CLK_ROOT_AUTO_DIV_MASK;
 644         val >>= CLK_ROOT_AUTO_DIV_SHIFT;
 645
 646         *div = val;
 647
 648         return 0;
 649 }
 650
 651 int clock_get_target_val(enum clk_root_index clock_id, u32 *val)
 652 {
 653         if (clock_id >= CLK_ROOT_MAX)
 654                 return -EINVAL;
 655
 656         *val = __raw_readl(&imx_ccm->root[clock_id].target_root);
 657
 658         return 0;
 659 }
 660
 661 int clock_set_target_val(enum clk_root_index clock_id, u32 val)
 662 {
 663         if (clock_id >= CLK_ROOT_MAX)
 664                 return -EINVAL;
 665
 666         __raw_writel(val, &imx_ccm->root[clock_id].target_root);
 667
 668         return 0;
 669 }
 670
 671 /* Auto_div and auto_en is ignored, they are rarely used. */
 672 int clock_root_cfg(enum clk_root_index clock_id, enum root_pre_div pre_div,
 673                    enum root_post_div post_div, enum clk_root_src clock_src)
 674 {
 675         u32 val;
 676         int root_entry, src_entry;
 677         struct clk_root_map *p;
 678
 679         if (clock_id >= CLK_ROOT_MAX)
 680                 return -EINVAL;
 681
 682         root_entry = select(clock_id);
 683         if (root_entry < 0)
 684                 return -EINVAL;
 685
 686         p = &root_array[root_entry];
 687
 688         if ((p->type == CCM_CORE_CHANNEL) ||
 689             (p->type == CCM_DRAM_PHYM_CHANNEL) ||
 690             (p->type == CCM_DRAM_CHANNEL)) {
 691                 if (pre_div != CLK_ROOT_PRE_DIV1) {
 692                         printf("Error pre div!\n");
 693                         return -EINVAL;
 694                 }
 695         }
 696
 697         /* Only 3 bit post div. */
 698         if (p->type == CCM_DRAM_CHANNEL) {
 699                 if (post_div > CLK_ROOT_POST_DIV7) {
 700                         printf("Error post div!\n");
 701                         return -EINVAL;
 702                 }
 703         }
 704
 705         if (p->type == CCM_DRAM_PHYM_CHANNEL) {
 706                 if (post_div != CLK_ROOT_POST_DIV1) {
 707                         printf("Error post div!\n");
 708                         return -EINVAL;
 709                 }
 710         }
 711
 712         src_entry = src_supported(root_entry, clock_src);
 713         if (src_entry < 0)
 714                 return -EINVAL;
 715
 716         val = CLK_ROOT_ON | pre_div << CLK_ROOT_PRE_DIV_SHIFT |
 717               post_div << CLK_ROOT_POST_DIV_SHIFT |
 718               src_entry << CLK_ROOT_MUX_SHIFT;
 719
 720         __raw_writel(val, &imx_ccm->root[clock_id].target_root);
 721
 722         return 0;
 723 }
 724
 725 int clock_root_enabled(enum clk_root_index clock_id)
 726 {
 727         u32 val;
 728
 729         if (clock_id >= CLK_ROOT_MAX)
 730                 return -EINVAL;
 731
 732         /*
 733          * No enable bit for DRAM controller and PHY. Just return enabled.
 734          */
 735         if ((clock_id == DRAM_PHYM_CLK_ROOT) || (clock_id == DRAM_CLK_ROOT))
 736                 return 1;
 737
 738         val = __raw_readl(&imx_ccm->root[clock_id].target_root);
 739
 740         return (val & CLK_ROOT_ENABLE_MASK) ? 1 : 0;
 741 }
 742
 743 /* CCGR gate operation */
 744 int clock_enable(enum clk_ccgr_index index, bool enable)
 745 {
 746         if (index >= CCGR_MAX)
 747                 return -EINVAL;
 748
 749         if (enable)
 750                 __raw_writel(CCM_CLK_ON_MSK,
 751                              &imx_ccm->ccgr_array[index].ccgr_set);
 752         else
 753                 __raw_writel(CCM_CLK_ON_MSK,
 754                              &imx_ccm->ccgr_array[index].ccgr_clr);
 755
 756         return 0;
 757 }