drivers/clk/rockchip/clk-rk1108.c

   1 /*
   2  * Copyright (c) 2016 Rockchip Electronics Co. Ltd.
   3  * Author: Shawn Lin <shawn.lin@rock-chips.com>
   4  *         Andy Yan <andy.yan@rock-chips.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  */
  16
  17 #include <linux/clk-provider.h>
  18 #include <linux/of.h>
  19 #include <linux/of_address.h>
  20 #include <linux/syscore_ops.h>
  21 #include <dt-bindings/clock/rk1108-cru.h>
  22 #include "clk.h"
  23
  24 #define RK1108_GRF_SOC_STATUS0  0x480
  25
  26 enum rk1108_plls {
  27         apll, dpll, gpll,
  28 };
  29
  30 static struct rockchip_pll_rate_table rk1108_pll_rates[] = {
  31         /* _mhz, _refdiv, _fbdiv, _postdiv1, _postdiv2, _dsmpd, _frac */
  32         RK3036_PLL_RATE(1608000000, 1, 67, 1, 1, 1, 0),
  33         RK3036_PLL_RATE(1584000000, 1, 66, 1, 1, 1, 0),
  34         RK3036_PLL_RATE(1560000000, 1, 65, 1, 1, 1, 0),
  35         RK3036_PLL_RATE(1536000000, 1, 64, 1, 1, 1, 0),
  36         RK3036_PLL_RATE(1512000000, 1, 63, 1, 1, 1, 0),
  37         RK3036_PLL_RATE(1488000000, 1, 62, 1, 1, 1, 0),
  38         RK3036_PLL_RATE(1464000000, 1, 61, 1, 1, 1, 0),
  39         RK3036_PLL_RATE(1440000000, 1, 60, 1, 1, 1, 0),
  40         RK3036_PLL_RATE(1416000000, 1, 59, 1, 1, 1, 0),
  41         RK3036_PLL_RATE(1392000000, 1, 58, 1, 1, 1, 0),
  42         RK3036_PLL_RATE(1368000000, 1, 57, 1, 1, 1, 0),
  43         RK3036_PLL_RATE(1344000000, 1, 56, 1, 1, 1, 0),
  44         RK3036_PLL_RATE(1320000000, 1, 55, 1, 1, 1, 0),
  45         RK3036_PLL_RATE(1296000000, 1, 54, 1, 1, 1, 0),
  46         RK3036_PLL_RATE(1272000000, 1, 53, 1, 1, 1, 0),
  47         RK3036_PLL_RATE(1248000000, 1, 52, 1, 1, 1, 0),
  48         RK3036_PLL_RATE(1200000000, 1, 50, 1, 1, 1, 0),
  49         RK3036_PLL_RATE(1188000000, 2, 99, 1, 1, 1, 0),
  50         RK3036_PLL_RATE(1104000000, 1, 46, 1, 1, 1, 0),
  51         RK3036_PLL_RATE(1100000000, 12, 550, 1, 1, 1, 0),
  52         RK3036_PLL_RATE(1008000000, 1, 84, 2, 1, 1, 0),
  53         RK3036_PLL_RATE(1000000000, 6, 500, 2, 1, 1, 0),
  54         RK3036_PLL_RATE( 984000000, 1, 82, 2, 1, 1, 0),
  55         RK3036_PLL_RATE( 960000000, 1, 80, 2, 1, 1, 0),
  56         RK3036_PLL_RATE( 936000000, 1, 78, 2, 1, 1, 0),
  57         RK3036_PLL_RATE( 912000000, 1, 76, 2, 1, 1, 0),
  58         RK3036_PLL_RATE( 900000000, 4, 300, 2, 1, 1, 0),
  59         RK3036_PLL_RATE( 888000000, 1, 74, 2, 1, 1, 0),
  60         RK3036_PLL_RATE( 864000000, 1, 72, 2, 1, 1, 0),
  61         RK3036_PLL_RATE( 840000000, 1, 70, 2, 1, 1, 0),
  62         RK3036_PLL_RATE( 816000000, 1, 68, 2, 1, 1, 0),
  63         RK3036_PLL_RATE( 800000000, 6, 400, 2, 1, 1, 0),
  64         RK3036_PLL_RATE( 700000000, 6, 350, 2, 1, 1, 0),
  65         RK3036_PLL_RATE( 696000000, 1, 58, 2, 1, 1, 0),
  66         RK3036_PLL_RATE( 600000000, 1, 75, 3, 1, 1, 0),
  67         RK3036_PLL_RATE( 594000000, 2, 99, 2, 1, 1, 0),
  68         RK3036_PLL_RATE( 504000000, 1, 63, 3, 1, 1, 0),
  69         RK3036_PLL_RATE( 500000000, 6, 250, 2, 1, 1, 0),
  70         RK3036_PLL_RATE( 408000000, 1, 68, 2, 2, 1, 0),
  71         RK3036_PLL_RATE( 312000000, 1, 52, 2, 2, 1, 0),
  72         RK3036_PLL_RATE( 216000000, 1, 72, 4, 2, 1, 0),
  73         RK3036_PLL_RATE(  96000000, 1, 64, 4, 4, 1, 0),
  74         { /* sentinel */ },
  75 };
  76
  77 #define RK1108_DIV_CORE_MASK            0xf
  78 #define RK1108_DIV_CORE_SHIFT           4
  79
  80 #define RK1108_CLKSEL0(_core_peri_div)  \
  81         {                               \
  82                 .reg = RK1108_CLKSEL_CON(1),    \
  83                 .val = HIWORD_UPDATE(_core_peri_div, RK1108_DIV_CORE_MASK,\
  84                                 RK1108_DIV_CORE_SHIFT)  \
  85         }
  86
  87 #define RK1108_CPUCLK_RATE(_prate, _core_peri_div)                      \
  88         {                                                               \
  89                 .prate = _prate,                                        \
  90                 .divs = {                                               \
  91                         RK1108_CLKSEL0(_core_peri_div),         \
  92                 },                                                      \
  93         }
  94
  95 static struct rockchip_cpuclk_rate_table rk1108_cpuclk_rates[] __initdata = {
  96         RK1108_CPUCLK_RATE(816000000, 4),
  97         RK1108_CPUCLK_RATE(600000000, 4),
  98         RK1108_CPUCLK_RATE(312000000, 4),
  99 };
 100
 101 static const struct rockchip_cpuclk_reg_data rk1108_cpuclk_data = {
 102         .core_reg = RK1108_CLKSEL_CON(0),
 103         .div_core_shift = 0,
 104         .div_core_mask = 0x1f,
 105         .mux_core_alt = 1,
 106         .mux_core_main = 0,
 107         .mux_core_shift = 8,
 108         .mux_core_mask = 0x1,
 109 };
 110
 111 PNAME(mux_pll_p)                = { "xin24m", "xin24m"};
 112 PNAME(mux_ddrphy_p)             = { "dpll_ddr", "gpll_ddr", "apll_ddr" };
 113 PNAME(mux_armclk_p)             = { "apll_core", "gpll_core", "dpll_core" };
 114 PNAME(mux_usb480m_pre_p)        = { "usbphy", "xin24m" };
 115 PNAME(mux_hdmiphy_phy_p)        = { "hdmiphy", "xin24m" };
 116 PNAME(mux_dclk_hdmiphy_pre_p)   = { "dclk_hdmiphy_src_gpll", "dclk_hdmiphy_src_dpll" };
 117 PNAME(mux_pll_src_4plls_p)      = { "dpll", "hdmiphy", "gpll", "usb480m" };
 118 PNAME(mux_pll_src_3plls_p)      = { "apll", "gpll", "dpll" };
 119 PNAME(mux_pll_src_2plls_p)      = { "dpll", "gpll" };
 120 PNAME(mux_pll_src_apll_gpll_p)  = { "apll", "gpll" };
 121 PNAME(mux_aclk_peri_src_p)      = { "aclk_peri_src_dpll", "aclk_peri_src_gpll" };
 122 PNAME(mux_aclk_bus_src_p)       = { "aclk_bus_src_gpll", "aclk_bus_src_apll", "aclk_bus_src_dpll" };
 123 PNAME(mux_mmc_src_p)            = { "dpll", "gpll", "xin24m", "usb480m" };
 124 PNAME(mux_pll_src_dpll_gpll_usb480m_p)  = { "dpll", "gpll", "usb480m" };
 125 PNAME(mux_uart0_p)              = { "uart0_src", "uart0_frac", "xin24m" };
 126 PNAME(mux_uart1_p)              = { "uart1_src", "uart1_frac", "xin24m" };
 127 PNAME(mux_uart2_p)              = { "uart2_src", "uart2_frac", "xin24m" };
 128 PNAME(mux_sclk_macphy_p)        = { "sclk_macphy_pre", "ext_gmac" };
 129 PNAME(mux_i2s0_pre_p)           = { "i2s0_src", "i2s0_frac", "ext_i2s", "xin12m" };
 130 PNAME(mux_i2s_out_p)            = { "i2s0_pre", "xin12m" };
 131 PNAME(mux_i2s1_p)               = { "i2s1_src", "i2s1_frac", "xin12m" };
 132 PNAME(mux_i2s2_p)               = { "i2s2_src", "i2s2_frac", "xin12m" };
 133
 134 static struct rockchip_pll_clock rk1108_pll_clks[] __initdata = {
 135         [apll] = PLL(pll_rk3399, PLL_APLL, "apll", mux_pll_p, 0, RK1108_PLL_CON(0),
 136                      RK1108_PLL_CON(3), 8, 31, 0, rk1108_pll_rates),
 137         [dpll] = PLL(pll_rk3399, PLL_DPLL, "dpll", mux_pll_p, 0, RK1108_PLL_CON(8),
 138                      RK1108_PLL_CON(11), 8, 31, 0, NULL),
 139         [gpll] = PLL(pll_rk3399, PLL_GPLL, "gpll", mux_pll_p, 0, RK1108_PLL_CON(16),
 140                      RK1108_PLL_CON(19), 8, 31, ROCKCHIP_PLL_SYNC_RATE, rk1108_pll_rates),
 141 };
 142
 143 #define MFLAGS CLK_MUX_HIWORD_MASK
 144 #define DFLAGS CLK_DIVIDER_HIWORD_MASK
 145 #define GFLAGS (CLK_GATE_HIWORD_MASK | CLK_GATE_SET_TO_DISABLE)
 146 #define IFLAGS ROCKCHIP_INVERTER_HIWORD_MASK
 147
 148 static struct rockchip_clk_branch rk1108_uart0_fracmux __initdata =
 149         MUX(SCLK_UART0, "sclk_uart0", mux_uart0_p, CLK_SET_RATE_PARENT,
 150                         RK1108_CLKSEL_CON(13), 8, 2, MFLAGS);
 151
 152 static struct rockchip_clk_branch rk1108_uart1_fracmux __initdata =
 153         MUX(SCLK_UART1, "sclk_uart1", mux_uart1_p, CLK_SET_RATE_PARENT,
 154                         RK1108_CLKSEL_CON(14), 8, 2, MFLAGS);
 155
 156 static struct rockchip_clk_branch rk1108_uart2_fracmux __initdata =
 157         MUX(SCLK_UART2, "sclk_uart2", mux_uart2_p, CLK_SET_RATE_PARENT,
 158                         RK1108_CLKSEL_CON(15), 8, 2, MFLAGS);
 159
 160 static struct rockchip_clk_branch rk1108_i2s0_fracmux __initdata =
 161         MUX(0, "i2s0_pre", mux_i2s0_pre_p, CLK_SET_RATE_PARENT,
 162                         RK1108_CLKSEL_CON(5), 12, 2, MFLAGS);
 163
 164 static struct rockchip_clk_branch rk1108_i2s1_fracmux __initdata =
 165         MUX(0, "i2s1_pre", mux_i2s1_p, CLK_SET_RATE_PARENT,
 166                         RK1108_CLKSEL_CON(6), 12, 2, MFLAGS);
 167
 168 static struct rockchip_clk_branch rk1108_i2s2_fracmux __initdata =
 169         MUX(0, "i2s2_pre", mux_i2s2_p, CLK_SET_RATE_PARENT,
 170                         RK1108_CLKSEL_CON(7), 12, 2, MFLAGS);
 171
 172 static struct rockchip_clk_branch rk1108_clk_branches[] __initdata = {
 173         MUX(0, "hdmi_phy", mux_hdmiphy_phy_p, CLK_SET_RATE_PARENT,
 174                         RK1108_MISC_CON, 13, 2, MFLAGS),
 175         MUX(0, "usb480m", mux_usb480m_pre_p, CLK_SET_RATE_PARENT,
 176                         RK1108_MISC_CON, 15, 2, MFLAGS),
 177         /*
 178          * Clock-Architecture Diagram 2
 179          */
 180
 181         /* PD_CORE */
 182         GATE(0, "dpll_core", "dpll", CLK_IGNORE_UNUSED,
 183                         RK1108_CLKGATE_CON(0), 1, GFLAGS),
 184         GATE(0, "apll_core", "apll", CLK_IGNORE_UNUSED,
 185                         RK1108_CLKGATE_CON(0), 0, GFLAGS),
 186         GATE(0, "gpll_core", "gpll", CLK_IGNORE_UNUSED,
 187                         RK1108_CLKGATE_CON(0), 2, GFLAGS),
 188         COMPOSITE_NOMUX(0, "pclken_dbg", "armclk", CLK_IGNORE_UNUSED,
 189                         RK1108_CLKSEL_CON(1), 4, 4, DFLAGS | CLK_DIVIDER_READ_ONLY,
 190                         RK1108_CLKGATE_CON(0), 5, GFLAGS),
 191         COMPOSITE_NOMUX(ACLK_ENMCORE, "aclkenm_core", "armclk", CLK_IGNORE_UNUSED,
 192                         RK1108_CLKSEL_CON(1), 0, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
 193                         RK1108_CLKGATE_CON(0), 4, GFLAGS),
 194         GATE(ACLK_CORE, "aclk_core", "aclkenm_core", CLK_IGNORE_UNUSED,
 195                         RK1108_CLKGATE_CON(11), 0, GFLAGS),
 196         GATE(0, "pclk_dbg", "pclken_dbg", CLK_IGNORE_UNUSED,
 197                         RK1108_CLKGATE_CON(11), 1, GFLAGS),
 198
 199         /* PD_RKVENC */
 200
 201         /* PD_RKVDEC */
 202
 203         /* PD_PMU_wrapper */
 204         COMPOSITE_NOMUX(0, "pmu_24m_ena", "gpll", CLK_IGNORE_UNUSED,
 205                         RK1108_CLKSEL_CON(38), 0, 5, DFLAGS,
 206                         RK1108_CLKGATE_CON(8), 12, GFLAGS),
 207         GATE(0, "pmu", "pmu_24m_ena", CLK_IGNORE_UNUSED,
 208                         RK1108_CLKGATE_CON(10), 0, GFLAGS),
 209         GATE(0, "intmem1", "pmu_24m_ena", CLK_IGNORE_UNUSED,
 210                         RK1108_CLKGATE_CON(10), 1, GFLAGS),
 211         GATE(0, "gpio0_pmu", "pmu_24m_ena", CLK_IGNORE_UNUSED,
 212                         RK1108_CLKGATE_CON(10), 2, GFLAGS),
 213         GATE(0, "pmugrf", "pmu_24m_ena", CLK_IGNORE_UNUSED,
 214                         RK1108_CLKGATE_CON(10), 3, GFLAGS),
 215         GATE(0, "pmu_noc", "pmu_24m_ena", CLK_IGNORE_UNUSED,
 216                         RK1108_CLKGATE_CON(10), 4, GFLAGS),
 217         GATE(0, "i2c0_pmu_pclk", "pmu_24m_ena", CLK_IGNORE_UNUSED,
 218                         RK1108_CLKGATE_CON(10), 5, GFLAGS),
 219         GATE(0, "pwm0_pmu_pclk", "pmu_24m_ena", CLK_IGNORE_UNUSED,
 220                         RK1108_CLKGATE_CON(10), 6, GFLAGS),
 221         COMPOSITE(0, "pwm0_pmu_clk", mux_pll_src_2plls_p, CLK_IGNORE_UNUSED,
 222                         RK1108_CLKSEL_CON(12), 7, 1, MFLAGS, 0, 7, DFLAGS,
 223                         RK1108_CLKGATE_CON(8), 15, GFLAGS),
 224         COMPOSITE(0, "i2c0_pmu_clk", mux_pll_src_2plls_p, CLK_IGNORE_UNUSED,
 225                         RK1108_CLKSEL_CON(19), 7, 1, MFLAGS, 0, 7, DFLAGS,
 226                         RK1108_CLKGATE_CON(8), 14, GFLAGS),
 227         GATE(0, "pvtm_pmu", "xin24m", CLK_IGNORE_UNUSED,
 228                         RK1108_CLKGATE_CON(8), 13, GFLAGS),
 229
 230         /*
 231          * Clock-Architecture Diagram 4
 232          */
 233         COMPOSITE(0, "aclk_vio0_2wrap_occ", mux_pll_src_4plls_p, CLK_IGNORE_UNUSED,
 234                         RK1108_CLKSEL_CON(28), 6, 2, MFLAGS, 0, 5, DFLAGS,
 235                         RK1108_CLKGATE_CON(6), 0, GFLAGS),
 236         GATE(0, "aclk_vio0_pre", "aclk_vio0_2wrap_occ", CLK_IGNORE_UNUSED,
 237                         RK1108_CLKGATE_CON(17), 0, GFLAGS),
 238         COMPOSITE_NOMUX(0, "hclk_vio_pre", "aclk_vio0_pre", 0,
 239                         RK1108_CLKSEL_CON(29), 0, 5, DFLAGS,
 240                         RK1108_CLKGATE_CON(7), 2, GFLAGS),
 241         COMPOSITE_NOMUX(0, "pclk_vio_pre", "aclk_vio0_pre", 0,
 242                         RK1108_CLKSEL_CON(29), 8, 5, DFLAGS,
 243                         RK1108_CLKGATE_CON(7), 3, GFLAGS),
 244
 245         INVERTER(0, "pclk_vip", "ext_vip",
 246                         RK1108_CLKSEL_CON(31), 8, IFLAGS),
 247         GATE(0, "pclk_isp_pre", "pclk_vip", CLK_IGNORE_UNUSED,
 248                         RK1108_CLKGATE_CON(7), 6, GFLAGS),
 249         GATE(0, "pclk_isp", "pclk_isp_pre", CLK_IGNORE_UNUSED,
 250                         RK1108_CLKGATE_CON(18), 10, GFLAGS),
 251         GATE(0, "dclk_hdmiphy_src_gpll", "gpll", CLK_IGNORE_UNUSED,
 252                         RK1108_CLKGATE_CON(6), 5, GFLAGS),
 253         GATE(0, "dclk_hdmiphy_src_dpll", "dpll", CLK_IGNORE_UNUSED,
 254                         RK1108_CLKGATE_CON(6), 4, GFLAGS),
 255         COMPOSITE_NOGATE(0, "dclk_hdmiphy", mux_dclk_hdmiphy_pre_p, 0,
 256                         RK1108_CLKSEL_CON(32), 6, 2, MFLAGS, 8, 6, DFLAGS),
 257
 258         /*
 259          * Clock-Architecture Diagram 5
 260          */
 261
 262         FACTOR(0, "xin12m", "xin24m", 0, 1, 2),
 263
 264         COMPOSITE(0, "i2s0_src", mux_pll_src_2plls_p, 0,
 265                         RK1108_CLKSEL_CON(5), 8, 1, MFLAGS, 0, 7, DFLAGS,
 266                         RK1108_CLKGATE_CON(2), 0, GFLAGS),
 267         COMPOSITE_FRACMUX(0, "i2s1_frac", "i2s1_src", CLK_SET_RATE_PARENT,
 268                         RK1108_CLKSEL_CON(8), 0,
 269                         RK1108_CLKGATE_CON(2), 1, GFLAGS,
 270                         &rk1108_i2s0_fracmux),
 271         GATE(SCLK_I2S0, "sclk_i2s0", "i2s0_pre", CLK_SET_RATE_PARENT,
 272                         RK1108_CLKGATE_CON(2), 2, GFLAGS),
 273         COMPOSITE_NODIV(0, "i2s_out", mux_i2s_out_p, 0,
 274                         RK1108_CLKSEL_CON(5), 15, 1, MFLAGS,
 275                         RK1108_CLKGATE_CON(2), 3, GFLAGS),
 276
 277         COMPOSITE(0, "i2s1_src", mux_pll_src_2plls_p, 0,
 278                         RK1108_CLKSEL_CON(6), 8, 1, MFLAGS, 0, 7, DFLAGS,
 279                         RK1108_CLKGATE_CON(2), 4, GFLAGS),
 280         COMPOSITE_FRACMUX(0, "i2s1_frac", "i2s1_src", CLK_SET_RATE_PARENT,
 281                         RK2928_CLKSEL_CON(9), 0,
 282                         RK2928_CLKGATE_CON(2), 5, GFLAGS,
 283                         &rk1108_i2s1_fracmux),
 284         GATE(SCLK_I2S1, "sclk_i2s1", "i2s1_pre", CLK_SET_RATE_PARENT,
 285                         RK1108_CLKGATE_CON(2), 6, GFLAGS),
 286
 287         COMPOSITE(0, "i2s2_src", mux_pll_src_2plls_p, 0,
 288                         RK1108_CLKSEL_CON(7), 8, 1, MFLAGS, 0, 7, DFLAGS,
 289                         RK1108_CLKGATE_CON(3), 8, GFLAGS),
 290         COMPOSITE_FRACMUX(0, "i2s2_frac", "i2s2_src", CLK_SET_RATE_PARENT,
 291                         RK1108_CLKSEL_CON(10), 0,
 292                         RK1108_CLKGATE_CON(2), 9, GFLAGS,
 293                         &rk1108_i2s2_fracmux),
 294         GATE(SCLK_I2S2, "sclk_i2s2", "i2s2_pre", CLK_SET_RATE_PARENT,
 295                         RK1108_CLKGATE_CON(2), 10, GFLAGS),
 296
 297         /* PD_BUS */
 298         GATE(0, "aclk_bus_src_gpll", "gpll", CLK_IGNORE_UNUSED,
 299                         RK1108_CLKGATE_CON(1), 0, GFLAGS),
 300         GATE(0, "aclk_bus_src_apll", "apll", CLK_IGNORE_UNUSED,
 301                         RK1108_CLKGATE_CON(1), 1, GFLAGS),
 302         GATE(0, "aclk_bus_src_dpll", "dpll", CLK_IGNORE_UNUSED,
 303                         RK1108_CLKGATE_CON(1), 2, GFLAGS),
 304         COMPOSITE_NOGATE(ACLK_PRE, "aclk_bus_pre", mux_aclk_bus_src_p, 0,
 305                         RK1108_CLKSEL_CON(2), 8, 2, MFLAGS, 0, 5, DFLAGS),
 306         COMPOSITE_NOMUX(0, "hclk_bus_pre", "aclk_bus_2wrap_occ", 0,
 307                         RK1108_CLKSEL_CON(3), 0, 5, DFLAGS,
 308                         RK1108_CLKGATE_CON(1), 4, GFLAGS),
 309         COMPOSITE_NOMUX(0, "pclken_bus", "aclk_bus_2wrap_occ", 0,
 310                         RK1108_CLKSEL_CON(3), 8, 5, DFLAGS,
 311                         RK1108_CLKGATE_CON(1), 5, GFLAGS),
 312         GATE(0, "pclk_bus_pre", "pclken_bus", CLK_IGNORE_UNUSED,
 313                         RK1108_CLKGATE_CON(1), 6, GFLAGS),
 314         GATE(0, "pclk_top_pre", "pclken_bus", CLK_IGNORE_UNUSED,
 315                         RK1108_CLKGATE_CON(1), 7, GFLAGS),
 316         GATE(0, "pclk_ddr_pre", "pclken_bus", CLK_IGNORE_UNUSED,
 317                         RK1108_CLKGATE_CON(1), 8, GFLAGS),
 318         GATE(0, "clk_timer0", "mux_pll_p", CLK_IGNORE_UNUSED,
 319                         RK1108_CLKGATE_CON(1), 9, GFLAGS),
 320         GATE(0, "clk_timer1", "mux_pll_p", CLK_IGNORE_UNUSED,
 321                         RK1108_CLKGATE_CON(1), 10, GFLAGS),
 322         GATE(0, "pclk_timer", "pclk_bus_pre", CLK_IGNORE_UNUSED,
 323                         RK1108_CLKGATE_CON(13), 4, GFLAGS),
 324
 325         COMPOSITE(0, "uart0_src", mux_pll_src_dpll_gpll_usb480m_p, CLK_IGNORE_UNUSED,
 326                         RK1108_CLKSEL_CON(13), 12, 2, MFLAGS, 0, 7, DFLAGS,
 327                         RK1108_CLKGATE_CON(3), 1, GFLAGS),
 328         COMPOSITE(0, "uart1_src", mux_pll_src_dpll_gpll_usb480m_p, CLK_IGNORE_UNUSED,
 329                         RK1108_CLKSEL_CON(14), 12, 2, MFLAGS, 0, 7, DFLAGS,
 330                         RK1108_CLKGATE_CON(3), 3, GFLAGS),
 331         COMPOSITE(0, "uart21_src", mux_pll_src_dpll_gpll_usb480m_p, CLK_IGNORE_UNUSED,
 332                         RK1108_CLKSEL_CON(15), 12, 2, MFLAGS, 0, 7, DFLAGS,
 333                         RK1108_CLKGATE_CON(3), 5, GFLAGS),
 334
 335         COMPOSITE_FRACMUX(0, "uart0_frac", "uart0_src", CLK_SET_RATE_PARENT,
 336                         RK1108_CLKSEL_CON(16), 0,
 337                         RK1108_CLKGATE_CON(3), 2, GFLAGS,
 338                         &rk1108_uart0_fracmux),
 339         COMPOSITE_FRACMUX(0, "uart1_frac", "uart1_src", CLK_SET_RATE_PARENT,
 340                         RK1108_CLKSEL_CON(17), 0,
 341                         RK1108_CLKGATE_CON(3), 4, GFLAGS,
 342                         &rk1108_uart1_fracmux),
 343         COMPOSITE_FRACMUX(0, "uart2_frac", "uart2_src", CLK_SET_RATE_PARENT,
 344                         RK1108_CLKSEL_CON(18), 0,
 345                         RK1108_CLKGATE_CON(3), 6, GFLAGS,
 346                         &rk1108_uart2_fracmux),
 347         GATE(PCLK_UART0, "pclk_uart0", "pclk_bus_pre", CLK_IGNORE_UNUSED,
 348                         RK1108_CLKGATE_CON(13), 10, GFLAGS),
 349         GATE(PCLK_UART1, "pclk_uart1", "pclk_bus_pre", CLK_IGNORE_UNUSED,
 350                         RK1108_CLKGATE_CON(13), 11, GFLAGS),
 351         GATE(PCLK_UART2, "pclk_uart2", "pclk_bus_pre", CLK_IGNORE_UNUSED,
 352                         RK1108_CLKGATE_CON(13), 12, GFLAGS),
 353
 354         COMPOSITE(0, "clk_i2c1", mux_pll_src_2plls_p, CLK_IGNORE_UNUSED,
 355                         RK1108_CLKSEL_CON(19), 15, 2, MFLAGS, 8, 7, DFLAGS,
 356                         RK1108_CLKGATE_CON(3), 7, GFLAGS),
 357         COMPOSITE(0, "clk_i2c2", mux_pll_src_2plls_p, CLK_IGNORE_UNUSED,
 358                         RK1108_CLKSEL_CON(20), 7, 2, MFLAGS, 0, 7, DFLAGS,
 359                         RK1108_CLKGATE_CON(3), 8, GFLAGS),
 360         COMPOSITE(0, "clk_i2c3", mux_pll_src_2plls_p, CLK_IGNORE_UNUSED,
 361                         RK1108_CLKSEL_CON(20), 15, 2, MFLAGS, 8, 7, DFLAGS,
 362                         RK1108_CLKGATE_CON(3), 9, GFLAGS),
 363         GATE(0, "pclk_i2c1", "pclk_bus_pre", CLK_IGNORE_UNUSED,
 364                         RK1108_CLKGATE_CON(13), 0, GFLAGS),
 365         GATE(0, "pclk_i2c2", "pclk_bus_pre", CLK_IGNORE_UNUSED,
 366                         RK1108_CLKGATE_CON(13), 1, GFLAGS),
 367         GATE(0, "pclk_i2c3", "pclk_bus_pre", CLK_IGNORE_UNUSED,
 368                         RK1108_CLKGATE_CON(13), 2, GFLAGS),
 369         COMPOSITE(0, "clk_pwm1", mux_pll_src_2plls_p, CLK_IGNORE_UNUSED,
 370                         RK1108_CLKSEL_CON(12), 15, 2, MFLAGS, 8, 7, DFLAGS,
 371                         RK1108_CLKGATE_CON(3), 10, GFLAGS),
 372         GATE(0, "pclk_pwm1", "pclk_bus_pre", CLK_IGNORE_UNUSED,
 373                         RK1108_CLKGATE_CON(13), 6, GFLAGS),
 374         GATE(0, "pclk_wdt", "pclk_bus_pre", CLK_IGNORE_UNUSED,
 375                         RK1108_CLKGATE_CON(13), 3, GFLAGS),
 376         GATE(0, "pclk_gpio1", "pclk_bus_pre", CLK_IGNORE_UNUSED,
 377                         RK1108_CLKGATE_CON(13), 7, GFLAGS),
 378         GATE(0, "pclk_gpio2", "pclk_bus_pre", CLK_IGNORE_UNUSED,
 379                         RK1108_CLKGATE_CON(13), 8, GFLAGS),
 380         GATE(0, "pclk_gpio3", "pclk_bus_pre", CLK_IGNORE_UNUSED,
 381                         RK1108_CLKGATE_CON(13), 9, GFLAGS),
 382
 383         GATE(0, "pclk_grf", "pclk_bus_pre", CLK_IGNORE_UNUSED,
 384                         RK1108_CLKGATE_CON(14), 0, GFLAGS),
 385
 386         GATE(ACLK_DMAC, "aclk_dmac", "aclk_bus_pre", 0,
 387              RK1108_CLKGATE_CON(12), 2, GFLAGS),
 388         GATE(0, "hclk_rom", "hclk_bus_pre", CLK_IGNORE_UNUSED,
 389                         RK1108_CLKGATE_CON(12), 3, GFLAGS),
 390         GATE(0, "aclk_intmem", "aclk_bus_pre", CLK_IGNORE_UNUSED,
 391                         RK1108_CLKGATE_CON(12), 1, GFLAGS),
 392
 393         /* PD_DDR */
 394         GATE(0, "apll_ddr", "apll", CLK_IGNORE_UNUSED,
 395                         RK1108_CLKGATE_CON(0), 8, GFLAGS),
 396         GATE(0, "dpll_ddr", "dpll", CLK_IGNORE_UNUSED,
 397                         RK1108_CLKGATE_CON(0), 9, GFLAGS),
 398         GATE(0, "gpll_ddr", "gpll", CLK_IGNORE_UNUSED,
 399                         RK1108_CLKGATE_CON(0), 10, GFLAGS),
 400         COMPOSITE(0, "ddrphy4x", mux_ddrphy_p, CLK_IGNORE_UNUSED,
 401                         RK1108_CLKSEL_CON(4), 8, 2, MFLAGS, 0, 3,
 402                         DFLAGS | CLK_DIVIDER_POWER_OF_TWO,
 403                         RK1108_CLKGATE_CON(10), 9, GFLAGS),
 404         GATE(0, "ddrupctl", "ddrphy_pre", CLK_IGNORE_UNUSED,
 405                         RK1108_CLKGATE_CON(12), 4, GFLAGS),
 406         GATE(0, "ddrc", "ddrphy", CLK_IGNORE_UNUSED,
 407                         RK1108_CLKGATE_CON(12), 5, GFLAGS),
 408         GATE(0, "ddrmon", "ddrphy_pre", CLK_IGNORE_UNUSED,
 409                         RK1108_CLKGATE_CON(12), 6, GFLAGS),
 410         GATE(0, "timer_clk", "xin24m", CLK_IGNORE_UNUSED,
 411                         RK1108_CLKGATE_CON(0), 11, GFLAGS),
 412
 413         /*
 414          * Clock-Architecture Diagram 6
 415          */
 416
 417         /* PD_PERI */
 418         COMPOSITE_NOMUX(0, "pclk_periph_pre", "gpll", 0,
 419                         RK1108_CLKSEL_CON(23), 10, 5, DFLAGS,
 420                         RK1108_CLKGATE_CON(4), 5, GFLAGS),
 421         GATE(0, "pclk_periph", "pclk_periph_pre", CLK_IGNORE_UNUSED,
 422                         RK1108_CLKGATE_CON(15), 13, GFLAGS),
 423         COMPOSITE_NOMUX(0, "hclk_periph_pre", "gpll", 0,
 424                         RK1108_CLKSEL_CON(23), 5, 5, DFLAGS,
 425                         RK1108_CLKGATE_CON(4), 4, GFLAGS),
 426         GATE(0, "hclk_periph", "hclk_periph_pre", CLK_IGNORE_UNUSED,
 427                         RK1108_CLKGATE_CON(15), 12, GFLAGS),
 428
 429         GATE(0, "aclk_peri_src_dpll", "dpll", CLK_IGNORE_UNUSED,
 430                         RK1108_CLKGATE_CON(4), 1, GFLAGS),
 431         GATE(0, "aclk_peri_src_gpll", "gpll", CLK_IGNORE_UNUSED,
 432                         RK1108_CLKGATE_CON(4), 2, GFLAGS),
 433         COMPOSITE(0, "aclk_periph", mux_aclk_peri_src_p, CLK_IGNORE_UNUSED,
 434                         RK1108_CLKSEL_CON(23), 15, 2, MFLAGS, 0, 5, DFLAGS,
 435                         RK1108_CLKGATE_CON(15), 11, GFLAGS),
 436
 437         COMPOSITE(SCLK_SDMMC, "sclk_sdmmc0", mux_mmc_src_p, 0,
 438                         RK1108_CLKSEL_CON(25), 8, 2, MFLAGS, 0, 8, DFLAGS,
 439                         RK1108_CLKGATE_CON(5), 0, GFLAGS),
 440
 441         COMPOSITE_NODIV(0, "sclk_sdio_src", mux_mmc_src_p, 0,
 442                         RK1108_CLKSEL_CON(25), 10, 2, MFLAGS,
 443                         RK1108_CLKGATE_CON(5), 2, GFLAGS),
 444         DIV(SCLK_SDIO, "sclk_sdio", "sclk_sdio_src", 0,
 445                         RK1108_CLKSEL_CON(26), 0, 8, DFLAGS),
 446
 447         COMPOSITE_NODIV(0, "sclk_emmc_src", mux_mmc_src_p, 0,
 448                         RK1108_CLKSEL_CON(25), 12, 2, MFLAGS,
 449                         RK1108_CLKGATE_CON(5), 1, GFLAGS),
 450         DIV(SCLK_EMMC, "sclk_emmc", "sclk_emmc_src", 0,
 451                         RK2928_CLKSEL_CON(26), 8, 8, DFLAGS),
 452         GATE(HCLK_SDMMC, "hclk_sdmmc", "hclk_periph", 0, RK1108_CLKGATE_CON(15), 0, GFLAGS),
 453         GATE(HCLK_SDIO, "hclk_sdio", "hclk_periph", 0, RK1108_CLKGATE_CON(15), 1, GFLAGS),
 454         GATE(HCLK_EMMC, "hclk_emmc", "hclk_periph", 0, RK1108_CLKGATE_CON(15), 2, GFLAGS),
 455
 456         COMPOSITE(SCLK_NANDC, "sclk_nandc", mux_pll_src_2plls_p, 0,
 457                         RK1108_CLKSEL_CON(27), 14, 2, MFLAGS, 8, 5, DFLAGS,
 458                         RK1108_CLKGATE_CON(5), 3, GFLAGS),
 459         GATE(HCLK_NANDC, "hclk_nandc", "hclk_periph", 0, RK1108_CLKGATE_CON(15), 3, GFLAGS),
 460
 461         COMPOSITE(SCLK_SFC, "sclk_sfc", mux_pll_src_2plls_p, 0,
 462                         RK1108_CLKSEL_CON(27), 7, 2, MFLAGS, 0, 7, DFLAGS,
 463                         RK1108_CLKGATE_CON(5), 4, GFLAGS),
 464         GATE(HCLK_SFC, "hclk_sfc", "hclk_periph", 0, RK1108_CLKGATE_CON(15), 10, GFLAGS),
 465
 466         COMPOSITE(0, "sclk_macphy_pre", mux_pll_src_apll_gpll_p, 0,
 467                         RK1108_CLKSEL_CON(24), 12, 2, MFLAGS, 0, 5, DFLAGS,
 468                         RK1108_CLKGATE_CON(4), 10, GFLAGS),
 469         MUX(0, "sclk_macphy", mux_sclk_macphy_p, CLK_SET_RATE_PARENT,
 470                         RK1108_CLKSEL_CON(24), 8, 2, MFLAGS),
 471         GATE(0, "sclk_macphy_rx", "sclk_macphy", 0, RK1108_CLKGATE_CON(4), 8, GFLAGS),
 472         GATE(0, "sclk_mac_ref", "sclk_macphy", 0, RK1108_CLKGATE_CON(4), 6, GFLAGS),
 473         GATE(0, "sclk_mac_refout", "sclk_macphy", 0, RK1108_CLKGATE_CON(4), 7, GFLAGS),
 474
 475         MMC(SCLK_SDMMC_DRV,    "sdmmc_drv",    "sclk_sdmmc", RK1108_SDMMC_CON0, 1),
 476         MMC(SCLK_SDMMC_SAMPLE, "sdmmc_sample", "sclk_sdmmc", RK1108_SDMMC_CON1, 1),
 477
 478         MMC(SCLK_SDIO_DRV,     "sdio_drv",     "sclk_sdio",  RK1108_SDIO_CON0,  1),
 479         MMC(SCLK_SDIO_SAMPLE,  "sdio_sample",  "sclk_sdio",  RK1108_SDIO_CON1,  1),
 480
 481         MMC(SCLK_EMMC_DRV,     "emmc_drv",     "sclk_emmc",  RK1108_EMMC_CON0,  1),
 482         MMC(SCLK_EMMC_SAMPLE,  "emmc_sample",  "sclk_emmc",  RK1108_EMMC_CON1,  1),
 483 };
 484
 485 static const char *const rk1108_critical_clocks[] __initconst = {
 486         "aclk_core",
 487         "aclk_bus_src_gpll",
 488         "aclk_periph",
 489         "hclk_periph",
 490         "pclk_periph",
 491 };
 492
 493 static void __init rk1108_clk_init(struct device_node *np)
 494 {
 495         struct rockchip_clk_provider *ctx;
 496         void __iomem *reg_base;
 497
 498         reg_base = of_iomap(np, 0);
 499         if (!reg_base) {
 500                 pr_err("%s: could not map cru region\n", __func__);
 501                 return;
 502         }
 503
 504         ctx = rockchip_clk_init(np, reg_base, CLK_NR_CLKS);
 505         if (IS_ERR(ctx)) {
 506                 pr_err("%s: rockchip clk init failed\n", __func__);
 507                 iounmap(reg_base);
 508                 return;
 509         }
 510
 511         rockchip_clk_register_plls(ctx, rk1108_pll_clks,
 512                                    ARRAY_SIZE(rk1108_pll_clks),
 513                                    RK1108_GRF_SOC_STATUS0);
 514         rockchip_clk_register_branches(ctx, rk1108_clk_branches,
 515                                   ARRAY_SIZE(rk1108_clk_branches));
 516         rockchip_clk_protect_critical(rk1108_critical_clocks,
 517                                       ARRAY_SIZE(rk1108_critical_clocks));
 518
 519         rockchip_clk_register_armclk(ctx, ARMCLK, "armclk",
 520                         mux_armclk_p, ARRAY_SIZE(mux_armclk_p),
 521                         &rk1108_cpuclk_data, rk1108_cpuclk_rates,
 522                         ARRAY_SIZE(rk1108_cpuclk_rates));
 523
 524         rockchip_register_softrst(np, 13, reg_base + RK1108_SOFTRST_CON(0),
 525                                   ROCKCHIP_SOFTRST_HIWORD_MASK);
 526
 527         rockchip_register_restart_notifier(ctx, RK1108_GLB_SRST_FST, NULL);
 528
 529         rockchip_clk_of_add_provider(np, ctx);
 530 }
 531 CLK_OF_DECLARE(rk1108_cru, "rockchip,rk1108-cru", rk1108_clk_init);