1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2021 MediaTek Inc. 4 * Author: Sam Shih <sam.shih@mediatek.com> 5 * Author: Wenzhen Yu <wenzhen.yu@mediatek.com> 6 */ 7 8 #include <linux/clk-provider.h> 9 #include <linux/mod_devicetable.h> 10 #include <linux/platform_device.h> 11 #include "clk-mtk.h" 12 #include "clk-gate.h" 13 #include "clk-mux.h" 14 15 #include <dt-bindings/clock/mt7986-clk.h> 16 #include <linux/clk.h> 17 18 static DEFINE_SPINLOCK(mt7986_clk_lock); 19 20 static const struct mtk_fixed_clk top_fixed_clks[] = { 21 FIXED_CLK(CLK_TOP_XTAL, "top_xtal", "clkxtal", 40000000), 22 FIXED_CLK(CLK_TOP_JTAG, "top_jtag", "clkxtal", 50000000), 23 }; 24 25 static const struct mtk_fixed_factor top_divs[] = { 26 /* XTAL */ 27 FACTOR(CLK_TOP_XTAL_D2, "top_xtal_d2", "top_xtal", 1, 2), 28 FACTOR(CLK_TOP_RTC_32K, "top_rtc_32k", "top_xtal", 1, 1250), 29 FACTOR(CLK_TOP_RTC_32P7K, "top_rtc_32p7k", "top_xtal", 1, 1220), 30 /* MPLL */ 31 FACTOR(CLK_TOP_MPLL_D2, "top_mpll_d2", "mpll", 1, 2), 32 FACTOR(CLK_TOP_MPLL_D4, "top_mpll_d4", "mpll", 1, 4), 33 FACTOR(CLK_TOP_MPLL_D8, "top_mpll_d8", "mpll", 1, 8), 34 FACTOR(CLK_TOP_MPLL_D8_D2, "top_mpll_d8_d2", "mpll", 1, 16), 35 FACTOR(CLK_TOP_MPLL_D3_D2, "top_mpll_d3_d2", "mpll", 1, 6), 36 /* MMPLL */ 37 FACTOR(CLK_TOP_MMPLL_D2, "top_mmpll_d2", "mmpll", 1, 2), 38 FACTOR(CLK_TOP_MMPLL_D4, "top_mmpll_d4", "mmpll", 1, 4), 39 FACTOR(CLK_TOP_MMPLL_D8, "top_mmpll_d8", "mmpll", 1, 8), 40 FACTOR(CLK_TOP_MMPLL_D8_D2, "top_mmpll_d8_d2", "mmpll", 1, 16), 41 FACTOR(CLK_TOP_MMPLL_D3_D8, "top_mmpll_d3_d8", "mmpll", 1, 24), 42 FACTOR(CLK_TOP_MMPLL_U2PHY, "top_mmpll_u2phy", "mmpll", 1, 30), 43 /* APLL2 */ 44 FACTOR(CLK_TOP_APLL2_D4, "top_apll2_d4", "apll2", 1, 4), 45 /* NET1PLL */ 46 FACTOR(CLK_TOP_NET1PLL_D4, "top_net1pll_d4", "net1pll", 1, 4), 47 FACTOR(CLK_TOP_NET1PLL_D5, "top_net1pll_d5", "net1pll", 1, 5), 48 FACTOR(CLK_TOP_NET1PLL_D5_D2, "top_net1pll_d5_d2", "net1pll", 1, 10), 49 FACTOR(CLK_TOP_NET1PLL_D5_D4, "top_net1pll_d5_d4", "net1pll", 1, 20), 50 FACTOR(CLK_TOP_NET1PLL_D8_D2, "top_net1pll_d8_d2", "net1pll", 1, 16), 51 FACTOR(CLK_TOP_NET1PLL_D8_D4, "top_net1pll_d8_d4", "net1pll", 1, 32), 52 /* NET2PLL */ 53 FACTOR(CLK_TOP_NET2PLL_D4, "top_net2pll_d4", "net2pll", 1, 4), 54 FACTOR(CLK_TOP_NET2PLL_D4_D2, "top_net2pll_d4_d2", "net2pll", 1, 8), 55 FACTOR(CLK_TOP_NET2PLL_D3_D2, "top_net2pll_d3_d2", "net2pll", 1, 2), 56 /* WEDMCUPLL */ 57 FACTOR(CLK_TOP_WEDMCUPLL_D5_D2, "top_wedmcupll_d5_d2", "wedmcupll", 1, 58 10), 59 }; 60 61 static const char *const nfi1x_parents[] __initconst = { "top_xtal", 62 "top_mmpll_d8", 63 "top_net1pll_d8_d2", 64 "top_net2pll_d3_d2", 65 "top_mpll_d4", 66 "top_mmpll_d8_d2", 67 "top_wedmcupll_d5_d2", 68 "top_mpll_d8" }; 69 70 static const char *const spinfi_parents[] __initconst = { 71 "top_xtal_d2", "top_xtal", "top_net1pll_d5_d4", 72 "top_mpll_d4", "top_mmpll_d8_d2", "top_wedmcupll_d5_d2", 73 "top_mmpll_d3_d8", "top_mpll_d8" 74 }; 75 76 static const char *const spi_parents[] __initconst = { 77 "top_xtal", "top_mpll_d2", "top_mmpll_d8", 78 "top_net1pll_d8_d2", "top_net2pll_d3_d2", "top_net1pll_d5_d4", 79 "top_mpll_d4", "top_wedmcupll_d5_d2" 80 }; 81 82 static const char *const uart_parents[] __initconst = { "top_xtal", 83 "top_mpll_d8", 84 "top_mpll_d8_d2" }; 85 86 static const char *const pwm_parents[] __initconst = { 87 "top_xtal", "top_net1pll_d8_d2", "top_net1pll_d5_d4", "top_mpll_d4" 88 }; 89 90 static const char *const i2c_parents[] __initconst = { 91 "top_xtal", "top_net1pll_d5_d4", "top_mpll_d4", "top_net1pll_d8_d4" 92 }; 93 94 static const char *const pextp_tl_ck_parents[] __initconst = { 95 "top_xtal", "top_net1pll_d5_d4", "top_net2pll_d4_d2", "top_rtc_32k" 96 }; 97 98 static const char *const emmc_250m_parents[] __initconst = { 99 "top_xtal", "top_net1pll_d5_d2" 100 }; 101 102 static const char *const emmc_416m_parents[] __initconst = { "top_xtal", 103 "mpll" }; 104 105 static const char *const f_26m_adc_parents[] __initconst = { "top_xtal", 106 "top_mpll_d8_d2" }; 107 108 static const char *const dramc_md32_parents[] __initconst = { "top_xtal", 109 "top_mpll_d2" }; 110 111 static const char *const sysaxi_parents[] __initconst = { "top_xtal", 112 "top_net1pll_d8_d2", 113 "top_net2pll_d4" }; 114 115 static const char *const sysapb_parents[] __initconst = { "top_xtal", 116 "top_mpll_d3_d2", 117 "top_net2pll_d4_d2" }; 118 119 static const char *const arm_db_main_parents[] __initconst = { 120 "top_xtal", "top_net2pll_d3_d2" 121 }; 122 123 static const char *const arm_db_jtsel_parents[] __initconst = { "top_jtag", 124 "top_xtal" }; 125 126 static const char *const netsys_parents[] __initconst = { "top_xtal", 127 "top_mmpll_d4" }; 128 129 static const char *const netsys_500m_parents[] __initconst = { 130 "top_xtal", "top_net1pll_d5" 131 }; 132 133 static const char *const netsys_mcu_parents[] __initconst = { 134 "top_xtal", "wedmcupll", "top_mmpll_d2", "top_net1pll_d4", 135 "top_net1pll_d5" 136 }; 137 138 static const char *const netsys_2x_parents[] __initconst = { 139 "top_xtal", "net2pll", "wedmcupll", "top_mmpll_d2" 140 }; 141 142 static const char *const sgm_325m_parents[] __initconst = { "top_xtal", 143 "sgmpll" }; 144 145 static const char *const sgm_reg_parents[] __initconst = { 146 "top_xtal", "top_net1pll_d8_d4" 147 }; 148 149 static const char *const a1sys_parents[] __initconst = { "top_xtal", 150 "top_apll2_d4" }; 151 152 static const char *const conn_mcusys_parents[] __initconst = { "top_xtal", 153 "top_mmpll_d2" }; 154 155 static const char *const eip_b_parents[] __initconst = { "top_xtal", 156 "net2pll" }; 157 158 static const char *const aud_l_parents[] __initconst = { "top_xtal", "apll2", 159 "top_mpll_d8_d2" }; 160 161 static const char *const a_tuner_parents[] __initconst = { "top_xtal", 162 "top_apll2_d4", 163 "top_mpll_d8_d2" }; 164 165 static const char *const u2u3_sys_parents[] __initconst = { 166 "top_xtal", "top_net1pll_d5_d4" 167 }; 168 169 static const char *const da_u2_refsel_parents[] __initconst = { 170 "top_xtal", "top_mmpll_u2phy" 171 }; 172 173 static const struct mtk_mux top_muxes[] = { 174 /* CLK_CFG_0 */ 175 MUX_GATE_CLR_SET_UPD(CLK_TOP_NFI1X_SEL, "nfi1x_sel", nfi1x_parents, 176 0x000, 0x004, 0x008, 0, 3, 7, 0x1C0, 0), 177 MUX_GATE_CLR_SET_UPD(CLK_TOP_SPINFI_SEL, "spinfi_sel", spinfi_parents, 178 0x000, 0x004, 0x008, 8, 3, 15, 0x1C0, 1), 179 MUX_GATE_CLR_SET_UPD(CLK_TOP_SPI_SEL, "spi_sel", spi_parents, 0x000, 180 0x004, 0x008, 16, 3, 23, 0x1C0, 2), 181 MUX_GATE_CLR_SET_UPD(CLK_TOP_SPIM_MST_SEL, "spim_mst_sel", spi_parents, 182 0x000, 0x004, 0x008, 24, 3, 31, 0x1C0, 3), 183 /* CLK_CFG_1 */ 184 MUX_GATE_CLR_SET_UPD(CLK_TOP_UART_SEL, "uart_sel", uart_parents, 0x010, 185 0x014, 0x018, 0, 2, 7, 0x1C0, 4), 186 MUX_GATE_CLR_SET_UPD(CLK_TOP_PWM_SEL, "pwm_sel", pwm_parents, 0x010, 187 0x014, 0x018, 8, 2, 15, 0x1C0, 5), 188 MUX_GATE_CLR_SET_UPD(CLK_TOP_I2C_SEL, "i2c_sel", i2c_parents, 0x010, 189 0x014, 0x018, 16, 2, 23, 0x1C0, 6), 190 MUX_GATE_CLR_SET_UPD(CLK_TOP_PEXTP_TL_SEL, "pextp_tl_ck_sel", 191 pextp_tl_ck_parents, 0x010, 0x014, 0x018, 24, 2, 192 31, 0x1C0, 7), 193 /* CLK_CFG_2 */ 194 MUX_GATE_CLR_SET_UPD_FLAGS(CLK_TOP_EMMC_250M_SEL, "emmc_250m_sel", 195 emmc_250m_parents, 0x020, 0x024, 0x028, 0, 1, 7, 196 0x1C0, 8, 0), 197 MUX_GATE_CLR_SET_UPD_FLAGS(CLK_TOP_EMMC_416M_SEL, "emmc_416m_sel", 198 emmc_416m_parents, 0x020, 0x024, 0x028, 8, 1, 15, 199 0x1C0, 9, 0), 200 MUX_GATE_CLR_SET_UPD(CLK_TOP_F_26M_ADC_SEL, "f_26m_adc_sel", 201 f_26m_adc_parents, 0x020, 0x024, 0x028, 16, 1, 23, 202 0x1C0, 10), 203 MUX_GATE_CLR_SET_UPD_FLAGS(CLK_TOP_DRAMC_SEL, "dramc_sel", 204 f_26m_adc_parents, 0x020, 0x024, 0x028, 205 24, 1, 31, 0x1C0, 11, 206 CLK_IS_CRITICAL | CLK_SET_RATE_PARENT), 207 /* CLK_CFG_3 */ 208 MUX_GATE_CLR_SET_UPD_FLAGS(CLK_TOP_DRAMC_MD32_SEL, "dramc_md32_sel", 209 dramc_md32_parents, 0x030, 0x034, 0x038, 210 0, 1, 7, 0x1C0, 12, 211 CLK_IS_CRITICAL | CLK_SET_RATE_PARENT), 212 MUX_GATE_CLR_SET_UPD_FLAGS(CLK_TOP_SYSAXI_SEL, "sysaxi_sel", 213 sysaxi_parents, 0x030, 0x034, 0x038, 214 8, 2, 15, 0x1C0, 13, 215 CLK_IS_CRITICAL | CLK_SET_RATE_PARENT), 216 MUX_GATE_CLR_SET_UPD_FLAGS(CLK_TOP_SYSAPB_SEL, "sysapb_sel", 217 sysapb_parents, 0x030, 0x034, 0x038, 218 16, 2, 23, 0x1C0, 14, 219 CLK_IS_CRITICAL | CLK_SET_RATE_PARENT), 220 MUX_GATE_CLR_SET_UPD(CLK_TOP_ARM_DB_MAIN_SEL, "arm_db_main_sel", 221 arm_db_main_parents, 0x030, 0x034, 0x038, 24, 1, 222 31, 0x1C0, 15), 223 /* CLK_CFG_4 */ 224 MUX_GATE_CLR_SET_UPD(CLK_TOP_ARM_DB_JTSEL, "arm_db_jtsel", 225 arm_db_jtsel_parents, 0x040, 0x044, 0x048, 0, 1, 7, 226 0x1C0, 16), 227 MUX_GATE_CLR_SET_UPD(CLK_TOP_NETSYS_SEL, "netsys_sel", netsys_parents, 228 0x040, 0x044, 0x048, 8, 1, 15, 0x1C0, 17), 229 MUX_GATE_CLR_SET_UPD(CLK_TOP_NETSYS_500M_SEL, "netsys_500m_sel", 230 netsys_500m_parents, 0x040, 0x044, 0x048, 16, 1, 231 23, 0x1C0, 18), 232 MUX_GATE_CLR_SET_UPD(CLK_TOP_NETSYS_MCU_SEL, "netsys_mcu_sel", 233 netsys_mcu_parents, 0x040, 0x044, 0x048, 24, 3, 31, 234 0x1C0, 19), 235 /* CLK_CFG_5 */ 236 MUX_GATE_CLR_SET_UPD(CLK_TOP_NETSYS_2X_SEL, "netsys_2x_sel", 237 netsys_2x_parents, 0x050, 0x054, 0x058, 0, 2, 7, 238 0x1C0, 20), 239 MUX_GATE_CLR_SET_UPD(CLK_TOP_SGM_325M_SEL, "sgm_325m_sel", 240 sgm_325m_parents, 0x050, 0x054, 0x058, 8, 1, 15, 241 0x1C0, 21), 242 MUX_GATE_CLR_SET_UPD_FLAGS(CLK_TOP_SGM_REG_SEL, "sgm_reg_sel", 243 sgm_reg_parents, 0x050, 0x054, 0x058, 244 16, 1, 23, 0x1C0, 22, 245 CLK_IS_CRITICAL | CLK_SET_RATE_PARENT), 246 MUX_GATE_CLR_SET_UPD(CLK_TOP_A1SYS_SEL, "a1sys_sel", a1sys_parents, 247 0x050, 0x054, 0x058, 24, 1, 31, 0x1C0, 23), 248 /* CLK_CFG_6 */ 249 MUX_GATE_CLR_SET_UPD(CLK_TOP_CONN_MCUSYS_SEL, "conn_mcusys_sel", 250 conn_mcusys_parents, 0x060, 0x064, 0x068, 0, 1, 7, 251 0x1C0, 24), 252 MUX_GATE_CLR_SET_UPD(CLK_TOP_EIP_B_SEL, "eip_b_sel", eip_b_parents, 253 0x060, 0x064, 0x068, 8, 1, 15, 0x1C0, 25), 254 MUX_GATE_CLR_SET_UPD(CLK_TOP_PCIE_PHY_SEL, "pcie_phy_sel", 255 f_26m_adc_parents, 0x060, 0x064, 0x068, 16, 1, 23, 256 0x1C0, 26), 257 MUX_GATE_CLR_SET_UPD(CLK_TOP_USB3_PHY_SEL, "usb3_phy_sel", 258 f_26m_adc_parents, 0x060, 0x064, 0x068, 24, 1, 31, 259 0x1C0, 27), 260 /* CLK_CFG_7 */ 261 MUX_GATE_CLR_SET_UPD_FLAGS(CLK_TOP_F26M_SEL, "csw_f26m_sel", 262 f_26m_adc_parents, 0x070, 0x074, 0x078, 263 0, 1, 7, 0x1C0, 28, 264 CLK_IS_CRITICAL | CLK_SET_RATE_PARENT), 265 MUX_GATE_CLR_SET_UPD(CLK_TOP_AUD_L_SEL, "aud_l_sel", aud_l_parents, 266 0x070, 0x074, 0x078, 8, 2, 15, 0x1C0, 29), 267 MUX_GATE_CLR_SET_UPD(CLK_TOP_A_TUNER_SEL, "a_tuner_sel", 268 a_tuner_parents, 0x070, 0x074, 0x078, 16, 2, 23, 269 0x1C0, 30), 270 MUX_GATE_CLR_SET_UPD(CLK_TOP_U2U3_SEL, "u2u3_sel", f_26m_adc_parents, 271 0x070, 0x074, 0x078, 24, 1, 31, 0x1C4, 0), 272 /* CLK_CFG_8 */ 273 MUX_GATE_CLR_SET_UPD(CLK_TOP_U2U3_SYS_SEL, "u2u3_sys_sel", 274 u2u3_sys_parents, 0x080, 0x084, 0x088, 0, 1, 7, 275 0x1C4, 1), 276 MUX_GATE_CLR_SET_UPD(CLK_TOP_U2U3_XHCI_SEL, "u2u3_xhci_sel", 277 u2u3_sys_parents, 0x080, 0x084, 0x088, 8, 1, 15, 278 0x1C4, 2), 279 MUX_GATE_CLR_SET_UPD(CLK_TOP_DA_U2_REFSEL, "da_u2_refsel", 280 da_u2_refsel_parents, 0x080, 0x084, 0x088, 16, 1, 281 23, 0x1C4, 3), 282 MUX_GATE_CLR_SET_UPD(CLK_TOP_DA_U2_CK_1P_SEL, "da_u2_ck_1p_sel", 283 da_u2_refsel_parents, 0x080, 0x084, 0x088, 24, 1, 284 31, 0x1C4, 4), 285 /* CLK_CFG_9 */ 286 MUX_GATE_CLR_SET_UPD(CLK_TOP_AP2CNN_HOST_SEL, "ap2cnn_host_sel", 287 sgm_reg_parents, 0x090, 0x094, 0x098, 0, 1, 7, 288 0x1C4, 5), 289 }; 290 291 static const struct mtk_clk_desc topck_desc = { 292 .fixed_clks = top_fixed_clks, 293 .num_fixed_clks = ARRAY_SIZE(top_fixed_clks), 294 .factor_clks = top_divs, 295 .num_factor_clks = ARRAY_SIZE(top_divs), 296 .mux_clks = top_muxes, 297 .num_mux_clks = ARRAY_SIZE(top_muxes), 298 .clk_lock = &mt7986_clk_lock, 299 }; 300 301 static const struct of_device_id of_match_clk_mt7986_topckgen[] = { 302 { .compatible = "mediatek,mt7986-topckgen", .data = &topck_desc }, 303 { /* sentinel */ } 304 }; 305 MODULE_DEVICE_TABLE(of, of_match_clk_mt7986_topckgen); 306 307 static struct platform_driver clk_mt7986_topckgen_drv = { 308 .probe = mtk_clk_simple_probe, 309 .remove = mtk_clk_simple_remove, 310 .driver = { 311 .name = "clk-mt7986-topckgen", 312 .of_match_table = of_match_clk_mt7986_topckgen, 313 }, 314 }; 315 module_platform_driver(clk_mt7986_topckgen_drv); 316 317 MODULE_DESCRIPTION("MediaTek MT7986 top clock generators driver"); 318 MODULE_LICENSE("GPL"); 319