1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Copyright (c) 2014 MundoReader S.L. 4 * Author: Heiko Stuebner <heiko@sntech.de> 5 * 6 * Copyright (c) 2015 Rockchip Electronics Co. Ltd. 7 * Author: Xing Zheng <zhengxing@rock-chips.com> 8 */ 9 10 #include <linux/clk-provider.h> 11 #include <linux/io.h> 12 #include <linux/of.h> 13 #include <linux/of_address.h> 14 #include <linux/syscore_ops.h> 15 #include <dt-bindings/clock/rk3036-cru.h> 16 #include "clk.h" 17 18 #define RK3036_GRF_SOC_STATUS0 0x14c 19 20 enum rk3036_plls { 21 apll, dpll, gpll, 22 }; 23 24 static struct rockchip_pll_rate_table rk3036_pll_rates[] = { 25 /* _mhz, _refdiv, _fbdiv, _postdiv1, _postdiv2, _dsmpd, _frac */ 26 RK3036_PLL_RATE(1608000000, 1, 67, 1, 1, 1, 0), 27 RK3036_PLL_RATE(1584000000, 1, 66, 1, 1, 1, 0), 28 RK3036_PLL_RATE(1560000000, 1, 65, 1, 1, 1, 0), 29 RK3036_PLL_RATE(1536000000, 1, 64, 1, 1, 1, 0), 30 RK3036_PLL_RATE(1512000000, 1, 63, 1, 1, 1, 0), 31 RK3036_PLL_RATE(1488000000, 1, 62, 1, 1, 1, 0), 32 RK3036_PLL_RATE(1464000000, 1, 61, 1, 1, 1, 0), 33 RK3036_PLL_RATE(1440000000, 1, 60, 1, 1, 1, 0), 34 RK3036_PLL_RATE(1416000000, 1, 59, 1, 1, 1, 0), 35 RK3036_PLL_RATE(1392000000, 1, 58, 1, 1, 1, 0), 36 RK3036_PLL_RATE(1368000000, 1, 57, 1, 1, 1, 0), 37 RK3036_PLL_RATE(1344000000, 1, 56, 1, 1, 1, 0), 38 RK3036_PLL_RATE(1320000000, 1, 55, 1, 1, 1, 0), 39 RK3036_PLL_RATE(1296000000, 1, 54, 1, 1, 1, 0), 40 RK3036_PLL_RATE(1272000000, 1, 53, 1, 1, 1, 0), 41 RK3036_PLL_RATE(1248000000, 1, 52, 1, 1, 1, 0), 42 RK3036_PLL_RATE(1200000000, 1, 50, 1, 1, 1, 0), 43 RK3036_PLL_RATE(1188000000, 2, 99, 1, 1, 1, 0), 44 RK3036_PLL_RATE(1104000000, 1, 46, 1, 1, 1, 0), 45 RK3036_PLL_RATE(1100000000, 12, 550, 1, 1, 1, 0), 46 RK3036_PLL_RATE(1008000000, 1, 84, 2, 1, 1, 0), 47 RK3036_PLL_RATE(1000000000, 6, 500, 2, 1, 1, 0), 48 RK3036_PLL_RATE( 984000000, 1, 82, 2, 1, 1, 0), 49 RK3036_PLL_RATE( 960000000, 1, 80, 2, 1, 1, 0), 50 RK3036_PLL_RATE( 936000000, 1, 78, 2, 1, 1, 0), 51 RK3036_PLL_RATE( 912000000, 1, 76, 2, 1, 1, 0), 52 RK3036_PLL_RATE( 900000000, 4, 300, 2, 1, 1, 0), 53 RK3036_PLL_RATE( 888000000, 1, 74, 2, 1, 1, 0), 54 RK3036_PLL_RATE( 864000000, 1, 72, 2, 1, 1, 0), 55 RK3036_PLL_RATE( 840000000, 1, 70, 2, 1, 1, 0), 56 RK3036_PLL_RATE( 816000000, 1, 68, 2, 1, 1, 0), 57 RK3036_PLL_RATE( 800000000, 6, 400, 2, 1, 1, 0), 58 RK3036_PLL_RATE( 700000000, 6, 350, 2, 1, 1, 0), 59 RK3036_PLL_RATE( 696000000, 1, 58, 2, 1, 1, 0), 60 RK3036_PLL_RATE( 600000000, 1, 75, 3, 1, 1, 0), 61 RK3036_PLL_RATE( 594000000, 2, 99, 2, 1, 1, 0), 62 RK3036_PLL_RATE( 504000000, 1, 63, 3, 1, 1, 0), 63 RK3036_PLL_RATE( 500000000, 6, 250, 2, 1, 1, 0), 64 RK3036_PLL_RATE( 408000000, 1, 68, 2, 2, 1, 0), 65 RK3036_PLL_RATE( 312000000, 1, 52, 2, 2, 1, 0), 66 RK3036_PLL_RATE( 216000000, 1, 72, 4, 2, 1, 0), 67 RK3036_PLL_RATE( 96000000, 1, 64, 4, 4, 1, 0), 68 { /* sentinel */ }, 69 }; 70 71 #define RK3036_DIV_CPU_MASK 0x1f 72 #define RK3036_DIV_CPU_SHIFT 8 73 74 #define RK3036_DIV_PERI_MASK 0xf 75 #define RK3036_DIV_PERI_SHIFT 0 76 #define RK3036_DIV_ACLK_MASK 0x7 77 #define RK3036_DIV_ACLK_SHIFT 4 78 #define RK3036_DIV_HCLK_MASK 0x3 79 #define RK3036_DIV_HCLK_SHIFT 8 80 #define RK3036_DIV_PCLK_MASK 0x7 81 #define RK3036_DIV_PCLK_SHIFT 12 82 83 #define RK3036_CLKSEL1(_core_periph_div) \ 84 { \ 85 .reg = RK2928_CLKSEL_CON(1), \ 86 .val = HIWORD_UPDATE(_core_periph_div, RK3036_DIV_PERI_MASK, \ 87 RK3036_DIV_PERI_SHIFT) \ 88 } 89 90 #define RK3036_CPUCLK_RATE(_prate, _core_periph_div) \ 91 { \ 92 .prate = _prate, \ 93 .divs = { \ 94 RK3036_CLKSEL1(_core_periph_div), \ 95 }, \ 96 } 97 98 static struct rockchip_cpuclk_rate_table rk3036_cpuclk_rates[] __initdata = { 99 RK3036_CPUCLK_RATE(816000000, 4), 100 RK3036_CPUCLK_RATE(600000000, 4), 101 RK3036_CPUCLK_RATE(312000000, 4), 102 }; 103 104 static const struct rockchip_cpuclk_reg_data rk3036_cpuclk_data = { 105 .core_reg[0] = RK2928_CLKSEL_CON(0), 106 .div_core_shift[0] = 0, 107 .div_core_mask[0] = 0x1f, 108 .num_cores = 1, 109 .mux_core_alt = 1, 110 .mux_core_main = 0, 111 .mux_core_shift = 7, 112 .mux_core_mask = 0x1, 113 }; 114 115 PNAME(mux_pll_p) = { "xin24m", "xin24m" }; 116 117 PNAME(mux_armclk_p) = { "apll", "gpll_armclk" }; 118 PNAME(mux_busclk_p) = { "apll", "dpll_cpu", "gpll_cpu" }; 119 PNAME(mux_ddrphy_p) = { "dpll_ddr", "gpll_ddr" }; 120 PNAME(mux_pll_src_3plls_p) = { "apll", "dpll", "gpll" }; 121 PNAME(mux_timer_p) = { "xin24m", "pclk_peri_src" }; 122 123 PNAME(mux_pll_src_apll_dpll_gpll_usb480m_p) = { "apll", "dpll", "gpll", "usb480m" }; 124 PNAME(mux_pll_src_dmyapll_dpll_gpll_xin24_p) = { "dummy_apll", "dpll", "gpll", "xin24m" }; 125 126 PNAME(mux_mmc_src_p) = { "apll", "dpll", "gpll", "xin24m" }; 127 PNAME(mux_i2s_pre_p) = { "i2s_src", "i2s_frac", "ext_i2s", "xin12m" }; 128 PNAME(mux_i2s_clkout_p) = { "i2s_pre", "xin12m" }; 129 PNAME(mux_spdif_p) = { "spdif_src", "spdif_frac", "xin12m" }; 130 PNAME(mux_uart0_p) = { "uart0_src", "uart0_frac", "xin24m" }; 131 PNAME(mux_uart1_p) = { "uart1_src", "uart1_frac", "xin24m" }; 132 PNAME(mux_uart2_p) = { "uart2_src", "uart2_frac", "xin24m" }; 133 PNAME(mux_mac_p) = { "mac_pll_src", "rmii_clkin" }; 134 PNAME(mux_dclk_p) = { "dclk_lcdc", "dclk_cru" }; 135 136 static struct rockchip_pll_clock rk3036_pll_clks[] __initdata = { 137 [apll] = PLL(pll_rk3036, PLL_APLL, "apll", mux_pll_p, 0, RK2928_PLL_CON(0), 138 RK2928_MODE_CON, 0, 5, 0, rk3036_pll_rates), 139 [dpll] = PLL(pll_rk3036, PLL_DPLL, "dpll", mux_pll_p, 0, RK2928_PLL_CON(4), 140 RK2928_MODE_CON, 4, 4, 0, NULL), 141 [gpll] = PLL(pll_rk3036, PLL_GPLL, "gpll", mux_pll_p, 0, RK2928_PLL_CON(12), 142 RK2928_MODE_CON, 12, 6, ROCKCHIP_PLL_SYNC_RATE, rk3036_pll_rates), 143 }; 144 145 #define MFLAGS CLK_MUX_HIWORD_MASK 146 #define DFLAGS CLK_DIVIDER_HIWORD_MASK 147 #define GFLAGS (CLK_GATE_HIWORD_MASK | CLK_GATE_SET_TO_DISABLE) 148 149 static struct rockchip_clk_branch rk3036_uart0_fracmux __initdata = 150 MUX(SCLK_UART0, "sclk_uart0", mux_uart0_p, CLK_SET_RATE_PARENT, 151 RK2928_CLKSEL_CON(13), 8, 2, MFLAGS); 152 153 static struct rockchip_clk_branch rk3036_uart1_fracmux __initdata = 154 MUX(SCLK_UART1, "sclk_uart1", mux_uart1_p, CLK_SET_RATE_PARENT, 155 RK2928_CLKSEL_CON(14), 8, 2, MFLAGS); 156 157 static struct rockchip_clk_branch rk3036_uart2_fracmux __initdata = 158 MUX(SCLK_UART2, "sclk_uart2", mux_uart2_p, CLK_SET_RATE_PARENT, 159 RK2928_CLKSEL_CON(15), 8, 2, MFLAGS); 160 161 static struct rockchip_clk_branch rk3036_i2s_fracmux __initdata = 162 MUX(0, "i2s_pre", mux_i2s_pre_p, CLK_SET_RATE_PARENT, 163 RK2928_CLKSEL_CON(3), 8, 2, MFLAGS); 164 165 static struct rockchip_clk_branch rk3036_spdif_fracmux __initdata = 166 MUX(SCLK_SPDIF, "sclk_spdif", mux_spdif_p, 0, 167 RK2928_CLKSEL_CON(5), 8, 2, MFLAGS); 168 169 static struct rockchip_clk_branch rk3036_clk_branches[] __initdata = { 170 /* 171 * Clock-Architecture Diagram 1 172 */ 173 174 GATE(0, "gpll_armclk", "gpll", CLK_IGNORE_UNUSED, 175 RK2928_CLKGATE_CON(0), 6, GFLAGS), 176 177 FACTOR(0, "xin12m", "xin24m", 0, 1, 2), 178 179 /* 180 * Clock-Architecture Diagram 2 181 */ 182 183 GATE(0, "dpll_ddr", "dpll", CLK_IGNORE_UNUSED, 184 RK2928_CLKGATE_CON(0), 2, GFLAGS), 185 GATE(0, "gpll_ddr", "gpll", CLK_IGNORE_UNUSED, 186 RK2928_CLKGATE_CON(0), 8, GFLAGS), 187 COMPOSITE_NOGATE(0, "ddrphy2x", mux_ddrphy_p, CLK_IGNORE_UNUSED, 188 RK2928_CLKSEL_CON(26), 8, 1, MFLAGS, 0, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO), 189 FACTOR(0, "ddrphy", "ddrphy2x", 0, 1, 2), 190 191 COMPOSITE_NOMUX(0, "pclk_dbg", "armclk", CLK_IGNORE_UNUSED, 192 RK2928_CLKSEL_CON(1), 0, 4, DFLAGS | CLK_DIVIDER_READ_ONLY, 193 RK2928_CLKGATE_CON(0), 7, GFLAGS), 194 COMPOSITE_NOMUX(0, "aclk_core_pre", "armclk", CLK_IGNORE_UNUSED, 195 RK2928_CLKSEL_CON(1), 4, 3, DFLAGS | CLK_DIVIDER_READ_ONLY, 196 RK2928_CLKGATE_CON(0), 7, GFLAGS), 197 198 GATE(0, "dpll_cpu", "dpll", 0, RK2928_CLKGATE_CON(10), 8, GFLAGS), 199 GATE(0, "gpll_cpu", "gpll", 0, RK2928_CLKGATE_CON(0), 1, GFLAGS), 200 COMPOSITE_NOGATE(0, "aclk_cpu_src", mux_busclk_p, 0, 201 RK2928_CLKSEL_CON(0), 14, 2, MFLAGS, 8, 5, DFLAGS), 202 GATE(ACLK_CPU, "aclk_cpu", "aclk_cpu_src", CLK_IGNORE_UNUSED, 203 RK2928_CLKGATE_CON(0), 3, GFLAGS), 204 COMPOSITE_NOMUX(PCLK_CPU, "pclk_cpu", "aclk_cpu_src", CLK_IGNORE_UNUSED, 205 RK2928_CLKSEL_CON(1), 12, 3, DFLAGS | CLK_DIVIDER_READ_ONLY, 206 RK2928_CLKGATE_CON(0), 5, GFLAGS), 207 COMPOSITE_NOMUX(HCLK_CPU, "hclk_cpu", "aclk_cpu_src", CLK_IGNORE_UNUSED, 208 RK2928_CLKSEL_CON(1), 8, 2, DFLAGS | CLK_DIVIDER_READ_ONLY, 209 RK2928_CLKGATE_CON(0), 4, GFLAGS), 210 211 COMPOSITE(0, "aclk_peri_src", mux_pll_src_3plls_p, 0, 212 RK2928_CLKSEL_CON(10), 14, 2, MFLAGS, 0, 5, DFLAGS, 213 RK2928_CLKGATE_CON(2), 0, GFLAGS), 214 215 GATE(ACLK_PERI, "aclk_peri", "aclk_peri_src", 0, 216 RK2928_CLKGATE_CON(2), 1, GFLAGS), 217 DIV(0, "pclk_peri_src", "aclk_peri_src", CLK_IGNORE_UNUSED, 218 RK2928_CLKSEL_CON(10), 12, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO), 219 GATE(PCLK_PERI, "pclk_peri", "pclk_peri_src", 0, 220 RK2928_CLKGATE_CON(2), 3, GFLAGS), 221 DIV(0, "hclk_peri_src", "aclk_peri_src", CLK_IGNORE_UNUSED, 222 RK2928_CLKSEL_CON(10), 8, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO), 223 GATE(HCLK_PERI, "hclk_peri", "hclk_peri_src", 0, 224 RK2928_CLKGATE_CON(2), 2, GFLAGS), 225 226 COMPOSITE_NODIV(SCLK_TIMER0, "sclk_timer0", mux_timer_p, CLK_IGNORE_UNUSED, 227 RK2928_CLKSEL_CON(2), 4, 1, MFLAGS, 228 RK2928_CLKGATE_CON(1), 0, GFLAGS), 229 COMPOSITE_NODIV(SCLK_TIMER1, "sclk_timer1", mux_timer_p, CLK_IGNORE_UNUSED, 230 RK2928_CLKSEL_CON(2), 5, 1, MFLAGS, 231 RK2928_CLKGATE_CON(1), 1, GFLAGS), 232 COMPOSITE_NODIV(SCLK_TIMER2, "sclk_timer2", mux_timer_p, CLK_IGNORE_UNUSED, 233 RK2928_CLKSEL_CON(2), 6, 1, MFLAGS, 234 RK2928_CLKGATE_CON(2), 4, GFLAGS), 235 COMPOSITE_NODIV(SCLK_TIMER3, "sclk_timer3", mux_timer_p, CLK_IGNORE_UNUSED, 236 RK2928_CLKSEL_CON(2), 7, 1, MFLAGS, 237 RK2928_CLKGATE_CON(2), 5, GFLAGS), 238 239 MUX(0, "uart_pll_clk", mux_pll_src_apll_dpll_gpll_usb480m_p, 0, 240 RK2928_CLKSEL_CON(13), 10, 2, MFLAGS), 241 COMPOSITE_NOMUX(0, "uart0_src", "uart_pll_clk", 0, 242 RK2928_CLKSEL_CON(13), 0, 7, DFLAGS, 243 RK2928_CLKGATE_CON(1), 8, GFLAGS), 244 COMPOSITE_NOMUX(0, "uart1_src", "uart_pll_clk", 0, 245 RK2928_CLKSEL_CON(14), 0, 7, DFLAGS, 246 RK2928_CLKGATE_CON(1), 10, GFLAGS), 247 COMPOSITE_NOMUX(0, "uart2_src", "uart_pll_clk", 0, 248 RK2928_CLKSEL_CON(15), 0, 7, DFLAGS, 249 RK2928_CLKGATE_CON(1), 12, GFLAGS), 250 COMPOSITE_FRACMUX(0, "uart0_frac", "uart0_src", CLK_SET_RATE_PARENT, 251 RK2928_CLKSEL_CON(17), 0, 252 RK2928_CLKGATE_CON(1), 9, GFLAGS, 253 &rk3036_uart0_fracmux), 254 COMPOSITE_FRACMUX(0, "uart1_frac", "uart1_src", CLK_SET_RATE_PARENT, 255 RK2928_CLKSEL_CON(18), 0, 256 RK2928_CLKGATE_CON(1), 11, GFLAGS, 257 &rk3036_uart1_fracmux), 258 COMPOSITE_FRACMUX(0, "uart2_frac", "uart2_src", CLK_SET_RATE_PARENT, 259 RK2928_CLKSEL_CON(19), 0, 260 RK2928_CLKGATE_CON(1), 13, GFLAGS, 261 &rk3036_uart2_fracmux), 262 263 COMPOSITE(ACLK_VCODEC, "aclk_vcodec", mux_pll_src_3plls_p, 0, 264 RK2928_CLKSEL_CON(32), 14, 2, MFLAGS, 8, 5, DFLAGS, 265 RK2928_CLKGATE_CON(3), 11, GFLAGS), 266 FACTOR_GATE(HCLK_VCODEC, "hclk_vcodec", "aclk_vcodec", 0, 1, 4, 267 RK2928_CLKGATE_CON(3), 12, GFLAGS), 268 269 COMPOSITE(0, "aclk_hvec", mux_pll_src_3plls_p, 0, 270 RK2928_CLKSEL_CON(20), 0, 2, MFLAGS, 2, 5, DFLAGS, 271 RK2928_CLKGATE_CON(10), 6, GFLAGS), 272 273 COMPOSITE(0, "aclk_disp1_pre", mux_pll_src_3plls_p, 0, 274 RK2928_CLKSEL_CON(31), 14, 2, MFLAGS, 8, 5, DFLAGS, 275 RK2928_CLKGATE_CON(1), 4, GFLAGS), 276 COMPOSITE(0, "hclk_disp_pre", mux_pll_src_3plls_p, 0, 277 RK2928_CLKSEL_CON(30), 14, 2, MFLAGS, 8, 5, DFLAGS, 278 RK2928_CLKGATE_CON(0), 11, GFLAGS), 279 COMPOSITE(SCLK_LCDC, "dclk_lcdc", mux_pll_src_3plls_p, 0, 280 RK2928_CLKSEL_CON(28), 0, 2, MFLAGS, 8, 8, DFLAGS, 281 RK2928_CLKGATE_CON(3), 2, GFLAGS), 282 283 COMPOSITE_NODIV(0, "sclk_sdmmc_src", mux_mmc_src_p, 0, 284 RK2928_CLKSEL_CON(12), 8, 2, MFLAGS, 285 RK2928_CLKGATE_CON(2), 11, GFLAGS), 286 DIV(SCLK_SDMMC, "sclk_sdmmc", "sclk_sdmmc_src", 0, 287 RK2928_CLKSEL_CON(11), 0, 7, DFLAGS), 288 289 COMPOSITE_NODIV(0, "sclk_sdio_src", mux_mmc_src_p, 0, 290 RK2928_CLKSEL_CON(12), 10, 2, MFLAGS, 291 RK2928_CLKGATE_CON(2), 13, GFLAGS), 292 DIV(SCLK_SDIO, "sclk_sdio", "sclk_sdio_src", 0, 293 RK2928_CLKSEL_CON(11), 8, 7, DFLAGS), 294 295 COMPOSITE(SCLK_EMMC, "sclk_emmc", mux_mmc_src_p, 0, 296 RK2928_CLKSEL_CON(12), 12, 2, MFLAGS, 0, 7, DFLAGS, 297 RK2928_CLKGATE_CON(2), 14, GFLAGS), 298 299 MMC(SCLK_SDMMC_DRV, "sdmmc_drv", "sclk_sdmmc", RK3036_SDMMC_CON0, 1), 300 MMC(SCLK_SDMMC_SAMPLE, "sdmmc_sample", "sclk_sdmmc", RK3036_SDMMC_CON1, 0), 301 302 MMC(SCLK_SDIO_DRV, "sdio_drv", "sclk_sdio", RK3036_SDIO_CON0, 1), 303 MMC(SCLK_SDIO_SAMPLE, "sdio_sample", "sclk_sdio", RK3036_SDIO_CON1, 0), 304 305 MMC(SCLK_EMMC_DRV, "emmc_drv", "sclk_emmc", RK3036_EMMC_CON0, 1), 306 MMC(SCLK_EMMC_SAMPLE, "emmc_sample", "sclk_emmc", RK3036_EMMC_CON1, 0), 307 308 COMPOSITE(0, "i2s_src", mux_pll_src_3plls_p, 0, 309 RK2928_CLKSEL_CON(3), 14, 2, MFLAGS, 0, 7, DFLAGS, 310 RK2928_CLKGATE_CON(0), 9, GFLAGS), 311 COMPOSITE_FRACMUX(0, "i2s_frac", "i2s_src", CLK_SET_RATE_PARENT, 312 RK2928_CLKSEL_CON(7), 0, 313 RK2928_CLKGATE_CON(0), 10, GFLAGS, 314 &rk3036_i2s_fracmux), 315 COMPOSITE_NODIV(SCLK_I2S_OUT, "i2s_clkout", mux_i2s_clkout_p, 0, 316 RK2928_CLKSEL_CON(3), 12, 1, MFLAGS, 317 RK2928_CLKGATE_CON(0), 13, GFLAGS), 318 GATE(SCLK_I2S, "sclk_i2s", "i2s_pre", CLK_SET_RATE_PARENT, 319 RK2928_CLKGATE_CON(0), 14, GFLAGS), 320 321 COMPOSITE(0, "spdif_src", mux_pll_src_3plls_p, 0, 322 RK2928_CLKSEL_CON(5), 10, 2, MFLAGS, 0, 7, DFLAGS, 323 RK2928_CLKGATE_CON(2), 10, GFLAGS), 324 COMPOSITE_FRACMUX(0, "spdif_frac", "spdif_src", 0, 325 RK2928_CLKSEL_CON(9), 0, 326 RK2928_CLKGATE_CON(2), 12, GFLAGS, 327 &rk3036_spdif_fracmux), 328 329 GATE(SCLK_OTGPHY0, "sclk_otgphy0", "xin12m", CLK_IGNORE_UNUSED, 330 RK2928_CLKGATE_CON(1), 5, GFLAGS), 331 332 COMPOSITE(SCLK_GPU, "sclk_gpu", mux_pll_src_3plls_p, 0, 333 RK2928_CLKSEL_CON(34), 8, 2, MFLAGS, 0, 5, DFLAGS, 334 RK2928_CLKGATE_CON(3), 13, GFLAGS), 335 336 COMPOSITE(SCLK_SPI, "sclk_spi", mux_pll_src_3plls_p, 0, 337 RK2928_CLKSEL_CON(25), 8, 2, MFLAGS, 0, 7, DFLAGS, 338 RK2928_CLKGATE_CON(2), 9, GFLAGS), 339 340 COMPOSITE(SCLK_NANDC, "sclk_nandc", mux_pll_src_3plls_p, 0, 341 RK2928_CLKSEL_CON(16), 8, 2, MFLAGS, 10, 5, DFLAGS, 342 RK2928_CLKGATE_CON(10), 4, GFLAGS), 343 344 COMPOSITE(SCLK_SFC, "sclk_sfc", mux_pll_src_dmyapll_dpll_gpll_xin24_p, 0, 345 RK2928_CLKSEL_CON(16), 0, 2, MFLAGS, 2, 5, DFLAGS, 346 RK2928_CLKGATE_CON(10), 5, GFLAGS), 347 348 COMPOSITE_NOGATE(SCLK_MACPLL, "mac_pll_src", mux_pll_src_3plls_p, CLK_SET_RATE_NO_REPARENT, 349 RK2928_CLKSEL_CON(21), 0, 2, MFLAGS, 9, 5, DFLAGS), 350 MUX(SCLK_MACREF, "mac_clk_ref", mux_mac_p, CLK_SET_RATE_PARENT, 351 RK2928_CLKSEL_CON(21), 3, 1, MFLAGS), 352 353 COMPOSITE_NOMUX(SCLK_MAC, "mac_clk", "mac_clk_ref", 0, 354 RK2928_CLKSEL_CON(21), 4, 5, DFLAGS, 355 RK2928_CLKGATE_CON(2), 6, GFLAGS), 356 FACTOR(0, "sclk_macref_out", "hclk_peri_src", 0, 1, 2), 357 358 MUX(SCLK_HDMI, "dclk_hdmi", mux_dclk_p, 0, 359 RK2928_CLKSEL_CON(31), 0, 1, MFLAGS), 360 361 /* 362 * Clock-Architecture Diagram 3 363 */ 364 365 /* aclk_cpu gates */ 366 GATE(0, "sclk_intmem", "aclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 12, GFLAGS), 367 GATE(0, "aclk_strc_sys", "aclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 10, GFLAGS), 368 369 /* hclk_cpu gates */ 370 GATE(HCLK_ROM, "hclk_rom", "hclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 6, GFLAGS), 371 372 /* pclk_cpu gates */ 373 GATE(PCLK_GRF, "pclk_grf", "pclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 4, GFLAGS), 374 GATE(PCLK_DDRUPCTL, "pclk_ddrupctl", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 7, GFLAGS), 375 GATE(PCLK_ACODEC, "pclk_acodec", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 14, GFLAGS), 376 GATE(PCLK_HDMI, "pclk_hdmi", "pclk_cpu", 0, RK2928_CLKGATE_CON(3), 8, GFLAGS), 377 378 /* aclk_vio gates */ 379 GATE(ACLK_VIO, "aclk_vio", "aclk_disp1_pre", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(6), 13, GFLAGS), 380 GATE(ACLK_LCDC, "aclk_lcdc", "aclk_disp1_pre", 0, RK2928_CLKGATE_CON(9), 6, GFLAGS), 381 382 GATE(HCLK_VIO_BUS, "hclk_vio_bus", "hclk_disp_pre", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(6), 12, GFLAGS), 383 GATE(HCLK_LCDC, "hclk_lcdc", "hclk_disp_pre", 0, RK2928_CLKGATE_CON(9), 5, GFLAGS), 384 385 386 /* xin24m gates */ 387 GATE(SCLK_PVTM_CORE, "sclk_pvtm_core", "xin24m", 0, RK2928_CLKGATE_CON(10), 0, GFLAGS), 388 GATE(SCLK_PVTM_GPU, "sclk_pvtm_gpu", "xin24m", 0, RK2928_CLKGATE_CON(10), 1, GFLAGS), 389 390 /* aclk_peri gates */ 391 GATE(0, "aclk_peri_axi_matrix", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 3, GFLAGS), 392 GATE(0, "aclk_cpu_peri", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 2, GFLAGS), 393 GATE(ACLK_DMAC2, "aclk_dmac2", "aclk_peri", 0, RK2928_CLKGATE_CON(5), 1, GFLAGS), 394 GATE(0, "aclk_peri_niu", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 15, GFLAGS), 395 396 /* hclk_peri gates */ 397 GATE(0, "hclk_peri_matrix", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 0, GFLAGS), 398 GATE(0, "hclk_usb_peri", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 13, GFLAGS), 399 GATE(0, "hclk_peri_arbi", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 14, GFLAGS), 400 GATE(HCLK_NANDC, "hclk_nandc", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 9, GFLAGS), 401 GATE(HCLK_SDMMC, "hclk_sdmmc", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 10, GFLAGS), 402 GATE(HCLK_SDIO, "hclk_sdio", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 11, GFLAGS), 403 GATE(HCLK_EMMC, "hclk_emmc", "hclk_peri", 0, RK2928_CLKGATE_CON(7), 0, GFLAGS), 404 GATE(HCLK_OTG0, "hclk_otg0", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 13, GFLAGS), 405 GATE(HCLK_OTG1, "hclk_otg1", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(7), 3, GFLAGS), 406 GATE(HCLK_I2S, "hclk_i2s", "hclk_peri", 0, RK2928_CLKGATE_CON(7), 2, GFLAGS), 407 GATE(HCLK_SFC, "hclk_sfc", "hclk_peri", 0, RK2928_CLKGATE_CON(3), 14, GFLAGS), 408 GATE(HCLK_MAC, "hclk_mac", "hclk_peri", 0, RK2928_CLKGATE_CON(3), 5, GFLAGS), 409 410 /* pclk_peri gates */ 411 GATE(0, "pclk_peri_matrix", "pclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 1, GFLAGS), 412 GATE(0, "pclk_efuse", "pclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 2, GFLAGS), 413 GATE(PCLK_TIMER, "pclk_timer", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 7, GFLAGS), 414 GATE(PCLK_PWM, "pclk_pwm", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 10, GFLAGS), 415 GATE(PCLK_SPI, "pclk_spi", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 12, GFLAGS), 416 GATE(PCLK_WDT, "pclk_wdt", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 15, GFLAGS), 417 GATE(PCLK_UART0, "pclk_uart0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 0, GFLAGS), 418 GATE(PCLK_UART1, "pclk_uart1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 1, GFLAGS), 419 GATE(PCLK_UART2, "pclk_uart2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 2, GFLAGS), 420 GATE(PCLK_I2C0, "pclk_i2c0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 4, GFLAGS), 421 GATE(PCLK_I2C1, "pclk_i2c1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 5, GFLAGS), 422 GATE(PCLK_I2C2, "pclk_i2c2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 6, GFLAGS), 423 GATE(PCLK_GPIO0, "pclk_gpio0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 9, GFLAGS), 424 GATE(PCLK_GPIO1, "pclk_gpio1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 10, GFLAGS), 425 GATE(PCLK_GPIO2, "pclk_gpio2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 11, GFLAGS), 426 }; 427 428 static const char *const rk3036_critical_clocks[] __initconst = { 429 "aclk_cpu", 430 "aclk_peri", 431 "hclk_peri", 432 "pclk_peri", 433 "pclk_ddrupctl", 434 }; 435 436 static void __init rk3036_clk_init(struct device_node *np) 437 { 438 struct rockchip_clk_provider *ctx; 439 void __iomem *reg_base; 440 struct clk *clk; 441 442 reg_base = of_iomap(np, 0); 443 if (!reg_base) { 444 pr_err("%s: could not map cru region\n", __func__); 445 return; 446 } 447 448 /* 449 * Make uart_pll_clk a child of the gpll, as all other sources are 450 * not that usable / stable. 451 */ 452 writel_relaxed(HIWORD_UPDATE(0x2, 0x3, 10), 453 reg_base + RK2928_CLKSEL_CON(13)); 454 455 ctx = rockchip_clk_init(np, reg_base, CLK_NR_CLKS); 456 if (IS_ERR(ctx)) { 457 pr_err("%s: rockchip clk init failed\n", __func__); 458 iounmap(reg_base); 459 return; 460 } 461 462 clk = clk_register_fixed_factor(NULL, "usb480m", "xin24m", 0, 20, 1); 463 if (IS_ERR(clk)) 464 pr_warn("%s: could not register clock usb480m: %ld\n", 465 __func__, PTR_ERR(clk)); 466 467 rockchip_clk_register_plls(ctx, rk3036_pll_clks, 468 ARRAY_SIZE(rk3036_pll_clks), 469 RK3036_GRF_SOC_STATUS0); 470 rockchip_clk_register_branches(ctx, rk3036_clk_branches, 471 ARRAY_SIZE(rk3036_clk_branches)); 472 rockchip_clk_protect_critical(rk3036_critical_clocks, 473 ARRAY_SIZE(rk3036_critical_clocks)); 474 475 rockchip_clk_register_armclk(ctx, ARMCLK, "armclk", 476 mux_armclk_p, ARRAY_SIZE(mux_armclk_p), 477 &rk3036_cpuclk_data, rk3036_cpuclk_rates, 478 ARRAY_SIZE(rk3036_cpuclk_rates)); 479 480 rockchip_register_softrst(np, 9, reg_base + RK2928_SOFTRST_CON(0), 481 ROCKCHIP_SOFTRST_HIWORD_MASK); 482 483 rockchip_register_restart_notifier(ctx, RK2928_GLB_SRST_FST, NULL); 484 485 rockchip_clk_of_add_provider(np, ctx); 486 } 487 CLK_OF_DECLARE(rk3036_cru, "rockchip,rk3036-cru", rk3036_clk_init); 488