arch/arm/mach-imx/clk-imx6q.c

   1 /*
   2  * Copyright 2011-2013 Freescale Semiconductor, Inc.
   3  * Copyright 2011 Linaro Ltd.
   4  *
   5  * The code contained herein is licensed under the GNU General Public
   6  * License. You may obtain a copy of the GNU General Public License
   7  * Version 2 or later at the following locations:
   8  *
   9  * http://www.opensource.org/licenses/gpl-license.html
  10  * http://www.gnu.org/copyleft/gpl.html
  11  */
  12
  13 #include <linux/init.h>
  14 #include <linux/types.h>
  15 #include <linux/clk.h>
  16 #include <linux/clkdev.h>
  17 #include <linux/err.h>
  18 #include <linux/io.h>
  19 #include <linux/of.h>
  20 #include <linux/of_address.h>
  21 #include <linux/of_irq.h>
  22
  23 #include "clk.h"
  24 #include "common.h"
  25 #include "hardware.h"
  26
  27 static const char *step_sels[]  = { "osc", "pll2_pfd2_396m", };
  28 static const char *pll1_sw_sels[]       = { "pll1_sys", "step", };
  29 static const char *periph_pre_sels[]    = { "pll2_bus", "pll2_pfd2_396m", "pll2_pfd0_352m", "pll2_198m", };
  30 static const char *periph_clk2_sels[]   = { "pll3_usb_otg", "osc", "osc", "dummy", };
  31 static const char *periph2_clk2_sels[]  = { "pll3_usb_otg", "pll2_bus", };
  32 static const char *periph_sels[]        = { "periph_pre", "periph_clk2", };
  33 static const char *periph2_sels[]       = { "periph2_pre", "periph2_clk2", };
  34 static const char *axi_sels[]           = { "periph", "pll2_pfd2_396m", "periph", "pll3_pfd1_540m", };
  35 static const char *audio_sels[] = { "pll4_audio_div", "pll3_pfd2_508m", "pll3_pfd3_454m", "pll3_usb_otg", };
  36 static const char *gpu_axi_sels[]       = { "axi", "ahb", };
  37 static const char *gpu2d_core_sels[]    = { "axi", "pll3_usb_otg", "pll2_pfd0_352m", "pll2_pfd2_396m", };
  38 static const char *gpu3d_core_sels[]    = { "mmdc_ch0_axi", "pll3_usb_otg", "pll2_pfd1_594m", "pll2_pfd2_396m", };
  39 static const char *gpu3d_shader_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll2_pfd1_594m", "pll3_pfd0_720m", };
  40 static const char *ipu_sels[]           = { "mmdc_ch0_axi", "pll2_pfd2_396m", "pll3_120m", "pll3_pfd1_540m", };
  41 static const char *ldb_di_sels[]        = { "pll5_video_div", "pll2_pfd0_352m", "pll2_pfd2_396m", "mmdc_ch1_axi", "pll3_usb_otg", };
  42 static const char *ipu_di_pre_sels[]    = { "mmdc_ch0_axi", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0_352m", "pll2_pfd2_396m", "pll3_pfd1_540m", };
  43 static const char *ipu1_di0_sels[]      = { "ipu1_di0_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", };
  44 static const char *ipu1_di1_sels[]      = { "ipu1_di1_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", };
  45 static const char *ipu2_di0_sels[]      = { "ipu2_di0_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", };
  46 static const char *ipu2_di1_sels[]      = { "ipu2_di1_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", };
  47 static const char *hsi_tx_sels[]        = { "pll3_120m", "pll2_pfd2_396m", };
  48 static const char *pcie_axi_sels[]      = { "axi", "ahb", };
  49 static const char *ssi_sels[]           = { "pll3_pfd2_508m", "pll3_pfd3_454m", "pll4_audio_div", };
  50 static const char *usdhc_sels[] = { "pll2_pfd2_396m", "pll2_pfd0_352m", };
  51 static const char *enfc_sels[]  = { "pll2_pfd0_352m", "pll2_bus", "pll3_usb_otg", "pll2_pfd2_396m", };
  52 static const char *emi_sels[]           = { "pll2_pfd2_396m", "pll3_usb_otg", "axi", "pll2_pfd0_352m", };
  53 static const char *emi_slow_sels[]      = { "axi", "pll3_usb_otg", "pll2_pfd2_396m", "pll2_pfd0_352m", };
  54 static const char *vdo_axi_sels[]       = { "axi", "ahb", };
  55 static const char *vpu_axi_sels[]       = { "axi", "pll2_pfd2_396m", "pll2_pfd0_352m", };
  56 static const char *cko1_sels[]  = { "pll3_usb_otg", "pll2_bus", "pll1_sys", "pll5_video_div",
  57                                     "dummy", "axi", "enfc", "ipu1_di0", "ipu1_di1", "ipu2_di0",
  58                                     "ipu2_di1", "ahb", "ipg", "ipg_per", "ckil", "pll4_audio_div", };
  59 static const char *cko2_sels[] = {
  60         "mmdc_ch0_axi", "mmdc_ch1_axi", "usdhc4", "usdhc1",
  61         "gpu2d_axi", "dummy", "ecspi_root", "gpu3d_axi",
  62         "usdhc3", "dummy", "arm", "ipu1",
  63         "ipu2", "vdo_axi", "osc", "gpu2d_core",
  64         "gpu3d_core", "usdhc2", "ssi1", "ssi2",
  65         "ssi3", "gpu3d_shader", "vpu_axi", "can_root",
  66         "ldb_di0", "ldb_di1", "esai", "eim_slow",
  67         "uart_serial", "spdif", "asrc", "hsi_tx",
  68 };
  69 static const char *cko_sels[] = { "cko1", "cko2", };
  70 static const char *lvds_sels[] = {
  71         "dummy", "dummy", "dummy", "dummy", "dummy", "dummy",
  72         "pll4_audio", "pll5_video", "pll8_mlb", "enet_ref",
  73         "pcie_ref", "sata_ref",
  74 };
  75
  76 enum mx6q_clks {
  77         dummy, ckil, ckih, osc, pll2_pfd0_352m, pll2_pfd1_594m, pll2_pfd2_396m,
  78         pll3_pfd0_720m, pll3_pfd1_540m, pll3_pfd2_508m, pll3_pfd3_454m,
  79         pll2_198m, pll3_120m, pll3_80m, pll3_60m, twd, step, pll1_sw,
  80         periph_pre, periph2_pre, periph_clk2_sel, periph2_clk2_sel, axi_sel,
  81         esai_sel, asrc_sel, spdif_sel, gpu2d_axi, gpu3d_axi, gpu2d_core_sel,
  82         gpu3d_core_sel, gpu3d_shader_sel, ipu1_sel, ipu2_sel, ldb_di0_sel,
  83         ldb_di1_sel, ipu1_di0_pre_sel, ipu1_di1_pre_sel, ipu2_di0_pre_sel,
  84         ipu2_di1_pre_sel, ipu1_di0_sel, ipu1_di1_sel, ipu2_di0_sel,
  85         ipu2_di1_sel, hsi_tx_sel, pcie_axi_sel, ssi1_sel, ssi2_sel, ssi3_sel,
  86         usdhc1_sel, usdhc2_sel, usdhc3_sel, usdhc4_sel, enfc_sel, emi_sel,
  87         emi_slow_sel, vdo_axi_sel, vpu_axi_sel, cko1_sel, periph, periph2,
  88         periph_clk2, periph2_clk2, ipg, ipg_per, esai_pred, esai_podf,
  89         asrc_pred, asrc_podf, spdif_pred, spdif_podf, can_root, ecspi_root,
  90         gpu2d_core_podf, gpu3d_core_podf, gpu3d_shader, ipu1_podf, ipu2_podf,
  91         ldb_di0_podf, ldb_di1_podf, ipu1_di0_pre, ipu1_di1_pre, ipu2_di0_pre,
  92         ipu2_di1_pre, hsi_tx_podf, ssi1_pred, ssi1_podf, ssi2_pred, ssi2_podf,
  93         ssi3_pred, ssi3_podf, uart_serial_podf, usdhc1_podf, usdhc2_podf,
  94         usdhc3_podf, usdhc4_podf, enfc_pred, enfc_podf, emi_podf,
  95         emi_slow_podf, vpu_axi_podf, cko1_podf, axi, mmdc_ch0_axi_podf,
  96         mmdc_ch1_axi_podf, arm, ahb, apbh_dma, asrc, can1_ipg, can1_serial,
  97         can2_ipg, can2_serial, ecspi1, ecspi2, ecspi3, ecspi4, ecspi5, enet,
  98         esai, gpt_ipg, gpt_ipg_per, gpu2d_core, gpu3d_core, hdmi_iahb,
  99         hdmi_isfr, i2c1, i2c2, i2c3, iim, enfc, ipu1, ipu1_di0, ipu1_di1, ipu2,
 100         ipu2_di0, ldb_di0, ldb_di1, ipu2_di1, hsi_tx, mlb, mmdc_ch0_axi,
 101         mmdc_ch1_axi, ocram, openvg_axi, pcie_axi, pwm1, pwm2, pwm3, pwm4, per1_bch,
 102         gpmi_bch_apb, gpmi_bch, gpmi_io, gpmi_apb, sata, sdma, spba, ssi1,
 103         ssi2, ssi3, uart_ipg, uart_serial, usboh3, usdhc1, usdhc2, usdhc3,
 104         usdhc4, vdo_axi, vpu_axi, cko1, pll1_sys, pll2_bus, pll3_usb_otg,
 105         pll4_audio, pll5_video, pll8_mlb, pll7_usb_host, pll6_enet, ssi1_ipg,
 106         ssi2_ipg, ssi3_ipg, rom, usbphy1, usbphy2, ldb_di0_div_3_5, ldb_di1_div_3_5,
 107         sata_ref, sata_ref_100m, pcie_ref, pcie_ref_125m, enet_ref, usbphy1_gate,
 108         usbphy2_gate, pll4_post_div, pll5_post_div, pll5_video_div, eim_slow,
 109         spdif, cko2_sel, cko2_podf, cko2, cko, vdoa, pll4_audio_div,
 110         lvds1_sel, lvds2_sel, lvds1_gate, lvds2_gate, clk_max
 111 };
 112
 113 static struct clk *clk[clk_max];
 114 static struct clk_onecell_data clk_data;
 115
 116 static enum mx6q_clks const clks_init_on[] __initconst = {
 117         mmdc_ch0_axi, rom, pll1_sys,
 118 };
 119
 120 static struct clk_div_table clk_enet_ref_table[] = {
 121         { .val = 0, .div = 20, },
 122         { .val = 1, .div = 10, },
 123         { .val = 2, .div = 5, },
 124         { .val = 3, .div = 4, },
 125         { /* sentinel */ }
 126 };
 127
 128 static struct clk_div_table post_div_table[] = {
 129         { .val = 2, .div = 1, },
 130         { .val = 1, .div = 2, },
 131         { .val = 0, .div = 4, },
 132         { /* sentinel */ }
 133 };
 134
 135 static struct clk_div_table video_div_table[] = {
 136         { .val = 0, .div = 1, },
 137         { .val = 1, .div = 2, },
 138         { .val = 2, .div = 1, },
 139         { .val = 3, .div = 4, },
 140         { /* sentinel */ }
 141 };
 142
 143 static void __init imx6q_clocks_init(struct device_node *ccm_node)
 144 {
 145         struct device_node *np;
 146         void __iomem *base;
 147         int i, irq;
 148         int ret;
 149
 150         clk[dummy] = imx_clk_fixed("dummy", 0);
 151         clk[ckil] = imx_obtain_fixed_clock("ckil", 0);
 152         clk[ckih] = imx_obtain_fixed_clock("ckih1", 0);
 153         clk[osc] = imx_obtain_fixed_clock("osc", 0);
 154
 155         np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-anatop");
 156         base = of_iomap(np, 0);
 157         WARN_ON(!base);
 158
 159         /* Audio/video PLL post dividers do not work on i.MX6q revision 1.0 */
 160         if (cpu_is_imx6q() && imx_get_soc_revision() == IMX_CHIP_REVISION_1_0) {
 161                 post_div_table[1].div = 1;
 162                 post_div_table[2].div = 1;
 163                 video_div_table[1].div = 1;
 164                 video_div_table[2].div = 1;
 165         };
 166
 167         /*                   type                               name         parent_name  base     div_mask */
 168         clk[pll1_sys]      = imx_clk_pllv3(IMX_PLLV3_SYS,       "pll1_sys",     "osc", base,        0x7f);
 169         clk[pll2_bus]      = imx_clk_pllv3(IMX_PLLV3_GENERIC,   "pll2_bus",     "osc", base + 0x30, 0x1);
 170         clk[pll3_usb_otg]  = imx_clk_pllv3(IMX_PLLV3_USB,       "pll3_usb_otg", "osc", base + 0x10, 0x3);
 171         clk[pll4_audio]    = imx_clk_pllv3(IMX_PLLV3_AV,        "pll4_audio",   "osc", base + 0x70, 0x7f);
 172         clk[pll5_video]    = imx_clk_pllv3(IMX_PLLV3_AV,        "pll5_video",   "osc", base + 0xa0, 0x7f);
 173         clk[pll6_enet]     = imx_clk_pllv3(IMX_PLLV3_ENET,      "pll6_enet",    "osc", base + 0xe0, 0x3);
 174         clk[pll7_usb_host] = imx_clk_pllv3(IMX_PLLV3_USB,       "pll7_usb_host","osc", base + 0x20, 0x3);
 175
 176         /*
 177          * Bit 20 is the reserved and read-only bit, we do this only for:
 178          * - Do nothing for usbphy clk_enable/disable
 179          * - Keep refcount when do usbphy clk_enable/disable, in that case,
 180          * the clk framework may need to enable/disable usbphy's parent
 181          */
 182         clk[usbphy1] = imx_clk_gate("usbphy1", "pll3_usb_otg", base + 0x10, 20);
 183         clk[usbphy2] = imx_clk_gate("usbphy2", "pll7_usb_host", base + 0x20, 20);
 184
 185         /*
 186          * usbphy*_gate needs to be on after system boots up, and software
 187          * never needs to control it anymore.
 188          */
 189         clk[usbphy1_gate] = imx_clk_gate("usbphy1_gate", "dummy", base + 0x10, 6);
 190         clk[usbphy2_gate] = imx_clk_gate("usbphy2_gate", "dummy", base + 0x20, 6);
 191
 192         clk[sata_ref] = imx_clk_fixed_factor("sata_ref", "pll6_enet", 1, 5);
 193         clk[pcie_ref] = imx_clk_fixed_factor("pcie_ref", "pll6_enet", 1, 4);
 194
 195         clk[sata_ref_100m] = imx_clk_gate("sata_ref_100m", "sata_ref", base + 0xe0, 20);
 196         clk[pcie_ref_125m] = imx_clk_gate("pcie_ref_125m", "pcie_ref", base + 0xe0, 19);
 197
 198         clk[enet_ref] = clk_register_divider_table(NULL, "enet_ref", "pll6_enet", 0,
 199                         base + 0xe0, 0, 2, 0, clk_enet_ref_table,
 200                         &imx_ccm_lock);
 201
 202         clk[lvds1_sel] = imx_clk_mux("lvds1_sel", base + 0x160, 0, 5, lvds_sels, ARRAY_SIZE(lvds_sels));
 203         clk[lvds2_sel] = imx_clk_mux("lvds2_sel", base + 0x160, 5, 5, lvds_sels, ARRAY_SIZE(lvds_sels));
 204
 205         /*
 206          * lvds1_gate and lvds2_gate are pseudo-gates.  Both can be
 207          * independently configured as clock inputs or outputs.  We treat
 208          * the "output_enable" bit as a gate, even though it's really just
 209          * enabling clock output.
 210          */
 211         clk[lvds1_gate] = imx_clk_gate("lvds1_gate", "dummy", base + 0x160, 10);
 212         clk[lvds2_gate] = imx_clk_gate("lvds2_gate", "dummy", base + 0x160, 11);
 213
 214         /*                                name              parent_name        reg       idx */
 215         clk[pll2_pfd0_352m] = imx_clk_pfd("pll2_pfd0_352m", "pll2_bus",     base + 0x100, 0);
 216         clk[pll2_pfd1_594m] = imx_clk_pfd("pll2_pfd1_594m", "pll2_bus",     base + 0x100, 1);
 217         clk[pll2_pfd2_396m] = imx_clk_pfd("pll2_pfd2_396m", "pll2_bus",     base + 0x100, 2);
 218         clk[pll3_pfd0_720m] = imx_clk_pfd("pll3_pfd0_720m", "pll3_usb_otg", base + 0xf0,  0);
 219         clk[pll3_pfd1_540m] = imx_clk_pfd("pll3_pfd1_540m", "pll3_usb_otg", base + 0xf0,  1);
 220         clk[pll3_pfd2_508m] = imx_clk_pfd("pll3_pfd2_508m", "pll3_usb_otg", base + 0xf0,  2);
 221         clk[pll3_pfd3_454m] = imx_clk_pfd("pll3_pfd3_454m", "pll3_usb_otg", base + 0xf0,  3);
 222
 223         /*                                    name         parent_name     mult div */
 224         clk[pll2_198m] = imx_clk_fixed_factor("pll2_198m", "pll2_pfd2_396m", 1, 2);
 225         clk[pll3_120m] = imx_clk_fixed_factor("pll3_120m", "pll3_usb_otg",   1, 4);
 226         clk[pll3_80m]  = imx_clk_fixed_factor("pll3_80m",  "pll3_usb_otg",   1, 6);
 227         clk[pll3_60m]  = imx_clk_fixed_factor("pll3_60m",  "pll3_usb_otg",   1, 8);
 228         clk[twd]       = imx_clk_fixed_factor("twd",       "arm",            1, 2);
 229
 230         clk[pll4_post_div] = clk_register_divider_table(NULL, "pll4_post_div", "pll4_audio", CLK_SET_RATE_PARENT, base + 0x70, 19, 2, 0, post_div_table, &imx_ccm_lock);
 231         clk[pll4_audio_div] = clk_register_divider(NULL, "pll4_audio_div", "pll4_post_div", CLK_SET_RATE_PARENT, base + 0x170, 15, 1, 0, &imx_ccm_lock);
 232         clk[pll5_post_div] = clk_register_divider_table(NULL, "pll5_post_div", "pll5_video", CLK_SET_RATE_PARENT, base + 0xa0, 19, 2, 0, post_div_table, &imx_ccm_lock);
 233         clk[pll5_video_div] = clk_register_divider_table(NULL, "pll5_video_div", "pll5_post_div", CLK_SET_RATE_PARENT, base + 0x170, 30, 2, 0, video_div_table, &imx_ccm_lock);
 234
 235         np = ccm_node;
 236         base = of_iomap(np, 0);
 237         WARN_ON(!base);
 238
 239         imx6q_pm_set_ccm_base(base);
 240
 241         /*                                  name                reg       shift width parent_names     num_parents */
 242         clk[step]             = imx_clk_mux("step",             base + 0xc,  8,  1, step_sels,         ARRAY_SIZE(step_sels));
 243         clk[pll1_sw]          = imx_clk_mux("pll1_sw",          base + 0xc,  2,  1, pll1_sw_sels,      ARRAY_SIZE(pll1_sw_sels));
 244         clk[periph_pre]       = imx_clk_mux("periph_pre",       base + 0x18, 18, 2, periph_pre_sels,   ARRAY_SIZE(periph_pre_sels));
 245         clk[periph2_pre]      = imx_clk_mux("periph2_pre",      base + 0x18, 21, 2, periph_pre_sels,   ARRAY_SIZE(periph_pre_sels));
 246         clk[periph_clk2_sel]  = imx_clk_mux("periph_clk2_sel",  base + 0x18, 12, 2, periph_clk2_sels,  ARRAY_SIZE(periph_clk2_sels));
 247         clk[periph2_clk2_sel] = imx_clk_mux("periph2_clk2_sel", base + 0x18, 20, 1, periph2_clk2_sels, ARRAY_SIZE(periph2_clk2_sels));
 248         clk[axi_sel]          = imx_clk_mux("axi_sel",          base + 0x14, 6,  2, axi_sels,          ARRAY_SIZE(axi_sels));
 249         clk[esai_sel]         = imx_clk_mux("esai_sel",         base + 0x20, 19, 2, audio_sels,        ARRAY_SIZE(audio_sels));
 250         clk[asrc_sel]         = imx_clk_mux("asrc_sel",         base + 0x30, 7,  2, audio_sels,        ARRAY_SIZE(audio_sels));
 251         clk[spdif_sel]        = imx_clk_mux("spdif_sel",        base + 0x30, 20, 2, audio_sels,        ARRAY_SIZE(audio_sels));
 252         clk[gpu2d_axi]        = imx_clk_mux("gpu2d_axi",        base + 0x18, 0,  1, gpu_axi_sels,      ARRAY_SIZE(gpu_axi_sels));
 253         clk[gpu3d_axi]        = imx_clk_mux("gpu3d_axi",        base + 0x18, 1,  1, gpu_axi_sels,      ARRAY_SIZE(gpu_axi_sels));
 254         clk[gpu2d_core_sel]   = imx_clk_mux("gpu2d_core_sel",   base + 0x18, 16, 2, gpu2d_core_sels,   ARRAY_SIZE(gpu2d_core_sels));
 255         clk[gpu3d_core_sel]   = imx_clk_mux("gpu3d_core_sel",   base + 0x18, 4,  2, gpu3d_core_sels,   ARRAY_SIZE(gpu3d_core_sels));
 256         clk[gpu3d_shader_sel] = imx_clk_mux("gpu3d_shader_sel", base + 0x18, 8,  2, gpu3d_shader_sels, ARRAY_SIZE(gpu3d_shader_sels));
 257         clk[ipu1_sel]         = imx_clk_mux("ipu1_sel",         base + 0x3c, 9,  2, ipu_sels,          ARRAY_SIZE(ipu_sels));
 258         clk[ipu2_sel]         = imx_clk_mux("ipu2_sel",         base + 0x3c, 14, 2, ipu_sels,          ARRAY_SIZE(ipu_sels));
 259         clk[ldb_di0_sel]      = imx_clk_mux_flags("ldb_di0_sel", base + 0x2c, 9,  3, ldb_di_sels,      ARRAY_SIZE(ldb_di_sels), CLK_SET_RATE_PARENT);
 260         clk[ldb_di1_sel]      = imx_clk_mux_flags("ldb_di1_sel", base + 0x2c, 12, 3, ldb_di_sels,      ARRAY_SIZE(ldb_di_sels), CLK_SET_RATE_PARENT);
 261         clk[ipu1_di0_pre_sel] = imx_clk_mux("ipu1_di0_pre_sel", base + 0x34, 6,  3, ipu_di_pre_sels,   ARRAY_SIZE(ipu_di_pre_sels));
 262         clk[ipu1_di1_pre_sel] = imx_clk_mux("ipu1_di1_pre_sel", base + 0x34, 15, 3, ipu_di_pre_sels,   ARRAY_SIZE(ipu_di_pre_sels));
 263         clk[ipu2_di0_pre_sel] = imx_clk_mux("ipu2_di0_pre_sel", base + 0x38, 6,  3, ipu_di_pre_sels,   ARRAY_SIZE(ipu_di_pre_sels));
 264         clk[ipu2_di1_pre_sel] = imx_clk_mux("ipu2_di1_pre_sel", base + 0x38, 15, 3, ipu_di_pre_sels,   ARRAY_SIZE(ipu_di_pre_sels));
 265         clk[ipu1_di0_sel]     = imx_clk_mux("ipu1_di0_sel",     base + 0x34, 0,  3, ipu1_di0_sels,     ARRAY_SIZE(ipu1_di0_sels));
 266         clk[ipu1_di1_sel]     = imx_clk_mux("ipu1_di1_sel",     base + 0x34, 9,  3, ipu1_di1_sels,     ARRAY_SIZE(ipu1_di1_sels));
 267         clk[ipu2_di0_sel]     = imx_clk_mux("ipu2_di0_sel",     base + 0x38, 0,  3, ipu2_di0_sels,     ARRAY_SIZE(ipu2_di0_sels));
 268         clk[ipu2_di1_sel]     = imx_clk_mux("ipu2_di1_sel",     base + 0x38, 9,  3, ipu2_di1_sels,     ARRAY_SIZE(ipu2_di1_sels));
 269         clk[hsi_tx_sel]       = imx_clk_mux("hsi_tx_sel",       base + 0x30, 28, 1, hsi_tx_sels,       ARRAY_SIZE(hsi_tx_sels));
 270         clk[pcie_axi_sel]     = imx_clk_mux("pcie_axi_sel",     base + 0x18, 10, 1, pcie_axi_sels,     ARRAY_SIZE(pcie_axi_sels));
 271         clk[ssi1_sel]         = imx_clk_fixup_mux("ssi1_sel",   base + 0x1c, 10, 2, ssi_sels,          ARRAY_SIZE(ssi_sels),          imx_cscmr1_fixup);
 272         clk[ssi2_sel]         = imx_clk_fixup_mux("ssi2_sel",   base + 0x1c, 12, 2, ssi_sels,          ARRAY_SIZE(ssi_sels),          imx_cscmr1_fixup);
 273         clk[ssi3_sel]         = imx_clk_fixup_mux("ssi3_sel",   base + 0x1c, 14, 2, ssi_sels,          ARRAY_SIZE(ssi_sels),          imx_cscmr1_fixup);
 274         clk[usdhc1_sel]       = imx_clk_fixup_mux("usdhc1_sel", base + 0x1c, 16, 1, usdhc_sels,        ARRAY_SIZE(usdhc_sels),        imx_cscmr1_fixup);
 275         clk[usdhc2_sel]       = imx_clk_fixup_mux("usdhc2_sel", base + 0x1c, 17, 1, usdhc_sels,        ARRAY_SIZE(usdhc_sels),        imx_cscmr1_fixup);
 276         clk[usdhc3_sel]       = imx_clk_fixup_mux("usdhc3_sel", base + 0x1c, 18, 1, usdhc_sels,        ARRAY_SIZE(usdhc_sels),        imx_cscmr1_fixup);
 277         clk[usdhc4_sel]       = imx_clk_fixup_mux("usdhc4_sel", base + 0x1c, 19, 1, usdhc_sels,        ARRAY_SIZE(usdhc_sels),        imx_cscmr1_fixup);
 278         clk[enfc_sel]         = imx_clk_mux("enfc_sel",         base + 0x2c, 16, 2, enfc_sels,         ARRAY_SIZE(enfc_sels));
 279         clk[emi_sel]          = imx_clk_fixup_mux("emi_sel",      base + 0x1c, 27, 2, emi_sels,        ARRAY_SIZE(emi_sels),          imx_cscmr1_fixup);
 280         clk[emi_slow_sel]     = imx_clk_fixup_mux("emi_slow_sel", base + 0x1c, 29, 2, emi_slow_sels,   ARRAY_SIZE(emi_slow_sels),     imx_cscmr1_fixup);
 281         clk[vdo_axi_sel]      = imx_clk_mux("vdo_axi_sel",      base + 0x18, 11, 1, vdo_axi_sels,      ARRAY_SIZE(vdo_axi_sels));
 282         clk[vpu_axi_sel]      = imx_clk_mux("vpu_axi_sel",      base + 0x18, 14, 2, vpu_axi_sels,      ARRAY_SIZE(vpu_axi_sels));
 283         clk[cko1_sel]         = imx_clk_mux("cko1_sel",         base + 0x60, 0,  4, cko1_sels,         ARRAY_SIZE(cko1_sels));
 284         clk[cko2_sel]         = imx_clk_mux("cko2_sel",         base + 0x60, 16, 5, cko2_sels,         ARRAY_SIZE(cko2_sels));
 285         clk[cko]              = imx_clk_mux("cko",              base + 0x60, 8, 1,  cko_sels,          ARRAY_SIZE(cko_sels));
 286
 287         /*                              name         reg      shift width busy: reg, shift parent_names  num_parents */
 288         clk[periph]  = imx_clk_busy_mux("periph",  base + 0x14, 25,  1,   base + 0x48, 5,  periph_sels,  ARRAY_SIZE(periph_sels));
 289         clk[periph2] = imx_clk_busy_mux("periph2", base + 0x14, 26,  1,   base + 0x48, 3,  periph2_sels, ARRAY_SIZE(periph2_sels));
 290
 291         /*                                      name                parent_name          reg       shift width */
 292         clk[periph_clk2]      = imx_clk_divider("periph_clk2",      "periph_clk2_sel",   base + 0x14, 27, 3);
 293         clk[periph2_clk2]     = imx_clk_divider("periph2_clk2",     "periph2_clk2_sel",  base + 0x14, 0,  3);
 294         clk[ipg]              = imx_clk_divider("ipg",              "ahb",               base + 0x14, 8,  2);
 295         clk[ipg_per]          = imx_clk_fixup_divider("ipg_per",    "ipg",               base + 0x1c, 0,  6, imx_cscmr1_fixup);
 296         clk[esai_pred]        = imx_clk_divider("esai_pred",        "esai_sel",          base + 0x28, 9,  3);
 297         clk[esai_podf]        = imx_clk_divider("esai_podf",        "esai_pred",         base + 0x28, 25, 3);
 298         clk[asrc_pred]        = imx_clk_divider("asrc_pred",        "asrc_sel",          base + 0x30, 12, 3);
 299         clk[asrc_podf]        = imx_clk_divider("asrc_podf",        "asrc_pred",         base + 0x30, 9,  3);
 300         clk[spdif_pred]       = imx_clk_divider("spdif_pred",       "spdif_sel",         base + 0x30, 25, 3);
 301         clk[spdif_podf]       = imx_clk_divider("spdif_podf",       "spdif_pred",        base + 0x30, 22, 3);
 302         clk[can_root]         = imx_clk_divider("can_root",         "pll3_60m",          base + 0x20, 2,  6);
 303         clk[ecspi_root]       = imx_clk_divider("ecspi_root",       "pll3_60m",          base + 0x38, 19, 6);
 304         clk[gpu2d_core_podf]  = imx_clk_divider("gpu2d_core_podf",  "gpu2d_core_sel",    base + 0x18, 23, 3);
 305         clk[gpu3d_core_podf]  = imx_clk_divider("gpu3d_core_podf",  "gpu3d_core_sel",    base + 0x18, 26, 3);
 306         clk[gpu3d_shader]     = imx_clk_divider("gpu3d_shader",     "gpu3d_shader_sel",  base + 0x18, 29, 3);
 307         clk[ipu1_podf]        = imx_clk_divider("ipu1_podf",        "ipu1_sel",          base + 0x3c, 11, 3);
 308         clk[ipu2_podf]        = imx_clk_divider("ipu2_podf",        "ipu2_sel",          base + 0x3c, 16, 3);
 309         clk[ldb_di0_div_3_5]  = imx_clk_fixed_factor("ldb_di0_div_3_5", "ldb_di0_sel", 2, 7);
 310         clk[ldb_di0_podf]     = imx_clk_divider_flags("ldb_di0_podf", "ldb_di0_div_3_5", base + 0x20, 10, 1, 0);
 311         clk[ldb_di1_div_3_5]  = imx_clk_fixed_factor("ldb_di1_div_3_5", "ldb_di1_sel", 2, 7);
 312         clk[ldb_di1_podf]     = imx_clk_divider_flags("ldb_di1_podf", "ldb_di1_div_3_5", base + 0x20, 11, 1, 0);
 313         clk[ipu1_di0_pre]     = imx_clk_divider("ipu1_di0_pre",     "ipu1_di0_pre_sel",  base + 0x34, 3,  3);
 314         clk[ipu1_di1_pre]     = imx_clk_divider("ipu1_di1_pre",     "ipu1_di1_pre_sel",  base + 0x34, 12, 3);
 315         clk[ipu2_di0_pre]     = imx_clk_divider("ipu2_di0_pre",     "ipu2_di0_pre_sel",  base + 0x38, 3,  3);
 316         clk[ipu2_di1_pre]     = imx_clk_divider("ipu2_di1_pre",     "ipu2_di1_pre_sel",  base + 0x38, 12, 3);
 317         clk[hsi_tx_podf]      = imx_clk_divider("hsi_tx_podf",      "hsi_tx_sel",        base + 0x30, 29, 3);
 318         clk[ssi1_pred]        = imx_clk_divider("ssi1_pred",        "ssi1_sel",          base + 0x28, 6,  3);
 319         clk[ssi1_podf]        = imx_clk_divider("ssi1_podf",        "ssi1_pred",         base + 0x28, 0,  6);
 320         clk[ssi2_pred]        = imx_clk_divider("ssi2_pred",        "ssi2_sel",          base + 0x2c, 6,  3);
 321         clk[ssi2_podf]        = imx_clk_divider("ssi2_podf",        "ssi2_pred",         base + 0x2c, 0,  6);
 322         clk[ssi3_pred]        = imx_clk_divider("ssi3_pred",        "ssi3_sel",          base + 0x28, 22, 3);
 323         clk[ssi3_podf]        = imx_clk_divider("ssi3_podf",        "ssi3_pred",         base + 0x28, 16, 6);
 324         clk[uart_serial_podf] = imx_clk_divider("uart_serial_podf", "pll3_80m",          base + 0x24, 0,  6);
 325         clk[usdhc1_podf]      = imx_clk_divider("usdhc1_podf",      "usdhc1_sel",        base + 0x24, 11, 3);
 326         clk[usdhc2_podf]      = imx_clk_divider("usdhc2_podf",      "usdhc2_sel",        base + 0x24, 16, 3);
 327         clk[usdhc3_podf]      = imx_clk_divider("usdhc3_podf",      "usdhc3_sel",        base + 0x24, 19, 3);
 328         clk[usdhc4_podf]      = imx_clk_divider("usdhc4_podf",      "usdhc4_sel",        base + 0x24, 22, 3);
 329         clk[enfc_pred]        = imx_clk_divider("enfc_pred",        "enfc_sel",          base + 0x2c, 18, 3);
 330         clk[enfc_podf]        = imx_clk_divider("enfc_podf",        "enfc_pred",         base + 0x2c, 21, 6);
 331         clk[emi_podf]         = imx_clk_fixup_divider("emi_podf",   "emi_sel",           base + 0x1c, 20, 3, imx_cscmr1_fixup);
 332         clk[emi_slow_podf]    = imx_clk_fixup_divider("emi_slow_podf", "emi_slow_sel",   base + 0x1c, 23, 3, imx_cscmr1_fixup);
 333         clk[vpu_axi_podf]     = imx_clk_divider("vpu_axi_podf",     "vpu_axi_sel",       base + 0x24, 25, 3);
 334         clk[cko1_podf]        = imx_clk_divider("cko1_podf",        "cko1_sel",          base + 0x60, 4,  3);
 335         clk[cko2_podf]        = imx_clk_divider("cko2_podf",        "cko2_sel",          base + 0x60, 21, 3);
 336
 337         /*                                            name                 parent_name    reg        shift width busy: reg, shift */
 338         clk[axi]               = imx_clk_busy_divider("axi",               "axi_sel",     base + 0x14, 16,  3,   base + 0x48, 0);
 339         clk[mmdc_ch0_axi_podf] = imx_clk_busy_divider("mmdc_ch0_axi_podf", "periph",      base + 0x14, 19,  3,   base + 0x48, 4);
 340         clk[mmdc_ch1_axi_podf] = imx_clk_busy_divider("mmdc_ch1_axi_podf", "periph2",     base + 0x14, 3,   3,   base + 0x48, 2);
 341         clk[arm]               = imx_clk_busy_divider("arm",               "pll1_sw",     base + 0x10, 0,   3,   base + 0x48, 16);
 342         clk[ahb]               = imx_clk_busy_divider("ahb",               "periph",      base + 0x14, 10,  3,   base + 0x48, 1);
 343
 344         /*                                name             parent_name          reg         shift */
 345         clk[apbh_dma]     = imx_clk_gate2("apbh_dma",      "usdhc3",            base + 0x68, 4);
 346         clk[asrc]         = imx_clk_gate2("asrc",          "asrc_podf",         base + 0x68, 6);
 347         clk[can1_ipg]     = imx_clk_gate2("can1_ipg",      "ipg",               base + 0x68, 14);
 348         clk[can1_serial]  = imx_clk_gate2("can1_serial",   "can_root",          base + 0x68, 16);
 349         clk[can2_ipg]     = imx_clk_gate2("can2_ipg",      "ipg",               base + 0x68, 18);
 350         clk[can2_serial]  = imx_clk_gate2("can2_serial",   "can_root",          base + 0x68, 20);
 351         clk[ecspi1]       = imx_clk_gate2("ecspi1",        "ecspi_root",        base + 0x6c, 0);
 352         clk[ecspi2]       = imx_clk_gate2("ecspi2",        "ecspi_root",        base + 0x6c, 2);
 353         clk[ecspi3]       = imx_clk_gate2("ecspi3",        "ecspi_root",        base + 0x6c, 4);
 354         clk[ecspi4]       = imx_clk_gate2("ecspi4",        "ecspi_root",        base + 0x6c, 6);
 355         clk[ecspi5]       = imx_clk_gate2("ecspi5",        "ecspi_root",        base + 0x6c, 8);
 356         clk[enet]         = imx_clk_gate2("enet",          "ipg",               base + 0x6c, 10);
 357         clk[esai]         = imx_clk_gate2("esai",          "esai_podf",         base + 0x6c, 16);
 358         clk[gpt_ipg]      = imx_clk_gate2("gpt_ipg",       "ipg",               base + 0x6c, 20);
 359         clk[gpt_ipg_per]  = imx_clk_gate2("gpt_ipg_per",   "ipg_per",           base + 0x6c, 22);
 360         if (cpu_is_imx6dl())
 361                 /*
 362                  * The multiplexer and divider of imx6q clock gpu3d_shader get
 363                  * redefined/reused as gpu2d_core_sel and gpu2d_core_podf on imx6dl.
 364                  */
 365                 clk[gpu2d_core] = imx_clk_gate2("gpu2d_core", "gpu3d_shader", base + 0x6c, 24);
 366         else
 367                 clk[gpu2d_core] = imx_clk_gate2("gpu2d_core", "gpu2d_core_podf", base + 0x6c, 24);
 368         clk[gpu3d_core]   = imx_clk_gate2("gpu3d_core",    "gpu3d_core_podf",   base + 0x6c, 26);
 369         clk[hdmi_iahb]    = imx_clk_gate2("hdmi_iahb",     "ahb",               base + 0x70, 0);
 370         clk[hdmi_isfr]    = imx_clk_gate2("hdmi_isfr",     "pll3_pfd1_540m",    base + 0x70, 4);
 371         clk[i2c1]         = imx_clk_gate2("i2c1",          "ipg_per",           base + 0x70, 6);
 372         clk[i2c2]         = imx_clk_gate2("i2c2",          "ipg_per",           base + 0x70, 8);
 373         clk[i2c3]         = imx_clk_gate2("i2c3",          "ipg_per",           base + 0x70, 10);
 374         clk[iim]          = imx_clk_gate2("iim",           "ipg",               base + 0x70, 12);
 375         clk[enfc]         = imx_clk_gate2("enfc",          "enfc_podf",         base + 0x70, 14);
 376         clk[vdoa]         = imx_clk_gate2("vdoa",          "vdo_axi",           base + 0x70, 26);
 377         clk[ipu1]         = imx_clk_gate2("ipu1",          "ipu1_podf",         base + 0x74, 0);
 378         clk[ipu1_di0]     = imx_clk_gate2("ipu1_di0",      "ipu1_di0_sel",      base + 0x74, 2);
 379         clk[ipu1_di1]     = imx_clk_gate2("ipu1_di1",      "ipu1_di1_sel",      base + 0x74, 4);
 380         clk[ipu2]         = imx_clk_gate2("ipu2",          "ipu2_podf",         base + 0x74, 6);
 381         clk[ipu2_di0]     = imx_clk_gate2("ipu2_di0",      "ipu2_di0_sel",      base + 0x74, 8);
 382         clk[ldb_di0]      = imx_clk_gate2("ldb_di0",       "ldb_di0_podf",      base + 0x74, 12);
 383         clk[ldb_di1]      = imx_clk_gate2("ldb_di1",       "ldb_di1_podf",      base + 0x74, 14);
 384         clk[ipu2_di1]     = imx_clk_gate2("ipu2_di1",      "ipu2_di1_sel",      base + 0x74, 10);
 385         clk[hsi_tx]       = imx_clk_gate2("hsi_tx",        "hsi_tx_podf",       base + 0x74, 16);
 386         if (cpu_is_imx6dl())
 387                 /*
 388                  * The multiplexer and divider of the imx6q clock gpu2d get
 389                  * redefined/reused as mlb_sys_sel and mlb_sys_clk_podf on imx6dl.
 390                  */
 391                 clk[mlb] = imx_clk_gate2("mlb",            "gpu2d_core_podf",   base + 0x74, 18);
 392         else
 393                 clk[mlb] = imx_clk_gate2("mlb",            "axi",               base + 0x74, 18);
 394         clk[mmdc_ch0_axi] = imx_clk_gate2("mmdc_ch0_axi",  "mmdc_ch0_axi_podf", base + 0x74, 20);
 395         clk[mmdc_ch1_axi] = imx_clk_gate2("mmdc_ch1_axi",  "mmdc_ch1_axi_podf", base + 0x74, 22);
 396         clk[ocram]        = imx_clk_gate2("ocram",         "ahb",               base + 0x74, 28);
 397         clk[openvg_axi]   = imx_clk_gate2("openvg_axi",    "axi",               base + 0x74, 30);
 398         clk[pcie_axi]     = imx_clk_gate2("pcie_axi",      "pcie_axi_sel",      base + 0x78, 0);
 399         clk[per1_bch]     = imx_clk_gate2("per1_bch",      "usdhc3",            base + 0x78, 12);
 400         clk[pwm1]         = imx_clk_gate2("pwm1",          "ipg_per",           base + 0x78, 16);
 401         clk[pwm2]         = imx_clk_gate2("pwm2",          "ipg_per",           base + 0x78, 18);
 402         clk[pwm3]         = imx_clk_gate2("pwm3",          "ipg_per",           base + 0x78, 20);
 403         clk[pwm4]         = imx_clk_gate2("pwm4",          "ipg_per",           base + 0x78, 22);
 404         clk[gpmi_bch_apb] = imx_clk_gate2("gpmi_bch_apb",  "usdhc3",            base + 0x78, 24);
 405         clk[gpmi_bch]     = imx_clk_gate2("gpmi_bch",      "usdhc4",            base + 0x78, 26);
 406         clk[gpmi_io]      = imx_clk_gate2("gpmi_io",       "enfc",              base + 0x78, 28);
 407         clk[gpmi_apb]     = imx_clk_gate2("gpmi_apb",      "usdhc3",            base + 0x78, 30);
 408         clk[rom]          = imx_clk_gate2("rom",           "ahb",               base + 0x7c, 0);
 409         clk[sata]         = imx_clk_gate2("sata",          "ipg",               base + 0x7c, 4);
 410         clk[sdma]         = imx_clk_gate2("sdma",          "ahb",               base + 0x7c, 6);
 411         clk[spba]         = imx_clk_gate2("spba",          "ipg",               base + 0x7c, 12);
 412         clk[spdif]        = imx_clk_gate2("spdif",         "spdif_podf",        base + 0x7c, 14);
 413         clk[ssi1_ipg]     = imx_clk_gate2("ssi1_ipg",      "ipg",               base + 0x7c, 18);
 414         clk[ssi2_ipg]     = imx_clk_gate2("ssi2_ipg",      "ipg",               base + 0x7c, 20);
 415         clk[ssi3_ipg]     = imx_clk_gate2("ssi3_ipg",      "ipg",               base + 0x7c, 22);
 416         clk[uart_ipg]     = imx_clk_gate2("uart_ipg",      "ipg",               base + 0x7c, 24);
 417         clk[uart_serial]  = imx_clk_gate2("uart_serial",   "uart_serial_podf",  base + 0x7c, 26);
 418         clk[usboh3]       = imx_clk_gate2("usboh3",        "ipg",               base + 0x80, 0);
 419         clk[usdhc1]       = imx_clk_gate2("usdhc1",        "usdhc1_podf",       base + 0x80, 2);
 420         clk[usdhc2]       = imx_clk_gate2("usdhc2",        "usdhc2_podf",       base + 0x80, 4);
 421         clk[usdhc3]       = imx_clk_gate2("usdhc3",        "usdhc3_podf",       base + 0x80, 6);
 422         clk[usdhc4]       = imx_clk_gate2("usdhc4",        "usdhc4_podf",       base + 0x80, 8);
 423         clk[eim_slow]     = imx_clk_gate2("eim_slow",      "emi_slow_podf",     base + 0x80, 10);
 424         clk[vdo_axi]      = imx_clk_gate2("vdo_axi",       "vdo_axi_sel",       base + 0x80, 12);
 425         clk[vpu_axi]      = imx_clk_gate2("vpu_axi",       "vpu_axi_podf",      base + 0x80, 14);
 426         clk[cko1]         = imx_clk_gate("cko1",           "cko1_podf",         base + 0x60, 7);
 427         clk[cko2]         = imx_clk_gate("cko2",           "cko2_podf",         base + 0x60, 24);
 428
 429         for (i = 0; i < ARRAY_SIZE(clk); i++)
 430                 if (IS_ERR(clk[i]))
 431                         pr_err("i.MX6q clk %d: register failed with %ld\n",
 432                                 i, PTR_ERR(clk[i]));
 433
 434         clk_data.clks = clk;
 435         clk_data.clk_num = ARRAY_SIZE(clk);
 436         of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
 437
 438         clk_register_clkdev(clk[gpt_ipg], "ipg", "imx-gpt.0");
 439         clk_register_clkdev(clk[gpt_ipg_per], "per", "imx-gpt.0");
 440         clk_register_clkdev(clk[cko1_sel], "cko1_sel", NULL);
 441         clk_register_clkdev(clk[ahb], "ahb", NULL);
 442         clk_register_clkdev(clk[cko1], "cko1", NULL);
 443         clk_register_clkdev(clk[arm], NULL, "cpu0");
 444         clk_register_clkdev(clk[pll4_post_div], "pll4_post_div", NULL);
 445         clk_register_clkdev(clk[pll4_audio], "pll4_audio", NULL);
 446
 447         if ((imx_get_soc_revision() != IMX_CHIP_REVISION_1_0) ||
 448             cpu_is_imx6dl()) {
 449                 clk_set_parent(clk[ldb_di0_sel], clk[pll5_video_div]);
 450                 clk_set_parent(clk[ldb_di1_sel], clk[pll5_video_div]);
 451         }
 452
 453         /*
 454          * The gpmi needs 100MHz frequency in the EDO/Sync mode,
 455          * We can not get the 100MHz from the pll2_pfd0_352m.
 456          * So choose pll2_pfd2_396m as enfc_sel's parent.
 457          */
 458         clk_set_parent(clk[enfc_sel], clk[pll2_pfd2_396m]);
 459
 460         for (i = 0; i < ARRAY_SIZE(clks_init_on); i++)
 461                 clk_prepare_enable(clk[clks_init_on[i]]);
 462
 463         if (IS_ENABLED(CONFIG_USB_MXS_PHY)) {
 464                 clk_prepare_enable(clk[usbphy1_gate]);
 465                 clk_prepare_enable(clk[usbphy2_gate]);
 466         }
 467
 468         /*
 469          * Let's initially set up CLKO with OSC24M, since this configuration
 470          * is widely used by imx6q board designs to clock audio codec.
 471          */
 472         ret = clk_set_parent(clk[cko2_sel], clk[osc]);
 473         if (!ret)
 474                 ret = clk_set_parent(clk[cko], clk[cko2]);
 475         if (ret)
 476                 pr_warn("failed to set up CLKO: %d\n", ret);
 477
 478         /* All existing boards with PCIe use LVDS1 */
 479         if (IS_ENABLED(CONFIG_PCI_IMX6))
 480                 clk_set_parent(clk[lvds1_sel], clk[sata_ref]);
 481
 482         np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-gpt");
 483         base = of_iomap(np, 0);
 484         WARN_ON(!base);
 485         irq = irq_of_parse_and_map(np, 0);
 486         mxc_timer_init(base, irq);
 487 }
 488 CLK_OF_DECLARE(imx6q, "fsl,imx6q-ccm", imx6q_clocks_init);