sun9i_a80_ccu.c revision 1.2
1 /* $NetBSD: sun9i_a80_ccu.c,v 1.2 2019/01/03 15:49:09 jmcneill Exp $ */ 2 3 /*- 4 * Copyright (c) 2017 Jared McNeill <jmcneill (at) invisible.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 31 __KERNEL_RCSID(1, "$NetBSD: sun9i_a80_ccu.c,v 1.2 2019/01/03 15:49:09 jmcneill Exp $"); 32 33 #include <sys/param.h> 34 #include <sys/bus.h> 35 #include <sys/device.h> 36 #include <sys/systm.h> 37 38 #include <dev/fdt/fdtvar.h> 39 40 #include <arm/sunxi/sunxi_ccu.h> 41 #include <arm/sunxi/sun9i_a80_ccu.h> 42 43 /* CCU */ 44 #define PLL_C0CPUX_CTRL_REG 0x000 45 #define PLL_C1CPUX_CTRL_REG 0x004 46 #define PLL_PERIPH0_CTRL_REG 0x00c 47 #define PLL_PERIPH1_CTRL_REG 0x02c 48 #define CPU_CLK_SRC_REG 0x050 49 #define CPU_CLK_SRC_SELECT(cluster) __BIT((cluster) * 8) 50 #define GTBUS_CLK_CFG_REG 0x05c 51 #define AHB0_CLK_CFG_REG 0x060 52 #define AHB1_CLK_CFG_REG 0x064 53 #define AHB2_CLK_CFG_REG 0x068 54 #define APB0_CLK_CFG_REG 0x070 55 #define APB1_CLK_CFG_REG 0x074 56 #define PLL_STABLE_STATUS_REG 0x09c 57 58 /* CCU_SCLK */ 59 #define SDMMC0_CLK_REG 0x410 60 #define SDMMC1_CLK_REG 0x414 61 #define SDMMC2_CLK_REG 0x418 62 #define BUS_CLK_GATING_REG0 0x580 63 #define BUS_CLK_GATING_REG1 0x584 64 #define BUS_CLK_GATING_REG2 0x588 65 #define BUS_CLK_GATING_REG3 0x590 66 #define BUS_CLK_GATING_REG4 0x594 67 #define BUS_SOFT_RST_REG0 0x5a0 68 #define BUS_SOFT_RST_REG1 0x5a4 69 #define BUS_SOFT_RST_REG2 0x5a8 70 #define BUS_SOFT_RST_REG3 0x5b0 71 #define BUS_SOFT_RST_REG4 0x5b4 72 73 static int sun9i_a80_ccu_match(device_t, cfdata_t, void *); 74 static void sun9i_a80_ccu_attach(device_t, device_t, void *); 75 76 static const char * compatible[] = { 77 "allwinner,sun9i-a80-ccu", 78 NULL 79 }; 80 81 CFATTACH_DECL_NEW(sunxi_a80_ccu, sizeof(struct sunxi_ccu_softc), 82 sun9i_a80_ccu_match, sun9i_a80_ccu_attach, NULL, NULL); 83 84 static struct sunxi_ccu_reset sun9i_a80_ccu_resets[] = { 85 SUNXI_CCU_RESET(A80_RST_BUS_FD, BUS_SOFT_RST_REG0, 0), 86 SUNXI_CCU_RESET(A80_RST_BUS_GPU_CTRL, BUS_SOFT_RST_REG0, 3), 87 SUNXI_CCU_RESET(A80_RST_BUS_SS, BUS_SOFT_RST_REG0, 5), 88 SUNXI_CCU_RESET(A80_RST_BUS_MMC, BUS_SOFT_RST_REG0, 8), 89 SUNXI_CCU_RESET(A80_RST_BUS_NAND1, BUS_SOFT_RST_REG0, 12), 90 SUNXI_CCU_RESET(A80_RST_BUS_NAND0, BUS_SOFT_RST_REG0, 13), 91 SUNXI_CCU_RESET(A80_RST_BUS_TS, BUS_SOFT_RST_REG0, 18), 92 SUNXI_CCU_RESET(A80_RST_BUS_SPI0, BUS_SOFT_RST_REG0, 20), 93 SUNXI_CCU_RESET(A80_RST_BUS_SPI1, BUS_SOFT_RST_REG0, 21), 94 SUNXI_CCU_RESET(A80_RST_BUS_SPI2, BUS_SOFT_RST_REG0, 22), 95 SUNXI_CCU_RESET(A80_RST_BUS_SPI3, BUS_SOFT_RST_REG0, 23), 96 97 SUNXI_CCU_RESET(A80_RST_BUS_OTG_PHY, BUS_SOFT_RST_REG1, 1), 98 SUNXI_CCU_RESET(A80_RST_BUS_MSGBOX, BUS_SOFT_RST_REG1, 21), 99 SUNXI_CCU_RESET(A80_RST_BUS_SPINLOCK, BUS_SOFT_RST_REG1, 22), 100 SUNXI_CCU_RESET(A80_RST_BUS_HSTIMER, BUS_SOFT_RST_REG1, 23), 101 SUNXI_CCU_RESET(A80_RST_BUS_DMA, BUS_SOFT_RST_REG1, 24), 102 103 SUNXI_CCU_RESET(A80_RST_BUS_LCD0, BUS_SOFT_RST_REG2, 0), 104 SUNXI_CCU_RESET(A80_RST_BUS_LCD1, BUS_SOFT_RST_REG2, 1), 105 SUNXI_CCU_RESET(A80_RST_BUS_CSI, BUS_SOFT_RST_REG2, 4), 106 SUNXI_CCU_RESET(A80_RST_BUS_DE, BUS_SOFT_RST_REG2, 7), 107 SUNXI_CCU_RESET(A80_RST_BUS_MP, BUS_SOFT_RST_REG2, 8), 108 SUNXI_CCU_RESET(A80_RST_BUS_GPU, BUS_SOFT_RST_REG2, 9), 109 110 SUNXI_CCU_RESET(A80_RST_BUS_LRADC, BUS_SOFT_RST_REG3, 15), 111 SUNXI_CCU_RESET(A80_RST_BUS_GPADC, BUS_SOFT_RST_REG3, 17), 112 113 SUNXI_CCU_RESET(A80_RST_BUS_I2C0, BUS_SOFT_RST_REG4, 0), 114 SUNXI_CCU_RESET(A80_RST_BUS_I2C1, BUS_SOFT_RST_REG4, 1), 115 SUNXI_CCU_RESET(A80_RST_BUS_I2C2, BUS_SOFT_RST_REG4, 2), 116 SUNXI_CCU_RESET(A80_RST_BUS_I2C3, BUS_SOFT_RST_REG4, 3), 117 SUNXI_CCU_RESET(A80_RST_BUS_I2C4, BUS_SOFT_RST_REG4, 4), 118 SUNXI_CCU_RESET(A80_RST_BUS_UART0, BUS_SOFT_RST_REG4, 16), 119 SUNXI_CCU_RESET(A80_RST_BUS_UART1, BUS_SOFT_RST_REG4, 17), 120 SUNXI_CCU_RESET(A80_RST_BUS_UART2, BUS_SOFT_RST_REG4, 18), 121 SUNXI_CCU_RESET(A80_RST_BUS_UART3, BUS_SOFT_RST_REG4, 19), 122 SUNXI_CCU_RESET(A80_RST_BUS_UART4, BUS_SOFT_RST_REG4, 20), 123 SUNXI_CCU_RESET(A80_RST_BUS_UART5, BUS_SOFT_RST_REG4, 21), 124 }; 125 126 static const char *gtbus_parents[] = { "hosc", "pll_periph0", "pll_periph1" }; 127 static const char *ahb0_parents[] = { "gtbus", "pll_periph0", "pll_periph1" }; 128 static const char *ahb1_parents[] = { "gtbus", "pll_periph0", "pll_periph1" }; 129 static const char *ahb2_parents[] = { "hosc", "pll_periph0", "pll_periph1" }; 130 static const char *apb_parents[] = { "hosc", "pll_periph0" }; 131 static const char *mmc_parents[] = { "hosc", "pll_periph0" }; 132 133 static kmutex_t cpux_axi_cfg_lock; 134 135 static int 136 sun9i_a80_ccu_cpux_set_rate(struct sunxi_ccu_softc *sc, 137 struct sunxi_ccu_clk *clk, u_int rate) 138 { 139 const int cluster = clk->u.nkmp.reg == PLL_C0CPUX_CTRL_REG ? 0 : 1; 140 struct sunxi_ccu_nkmp *nkmp = &clk->u.nkmp; 141 uint32_t val; 142 u_int n; 143 144 n = rate / 24000000; 145 if (n < 0x11 || n > 0xff) 146 return EINVAL; 147 148 /* Switch cluster to OSC24M clock */ 149 mutex_enter(&cpux_axi_cfg_lock); 150 val = CCU_READ(sc, CPU_CLK_SRC_REG); 151 val &= ~CPU_CLK_SRC_SELECT(cluster); 152 CCU_WRITE(sc, CPU_CLK_SRC_REG, val); 153 mutex_exit(&cpux_axi_cfg_lock); 154 155 /* Set new PLL rate */ 156 val = CCU_READ(sc, nkmp->reg); 157 val &= ~nkmp->n; 158 val |= __SHIFTIN(n, nkmp->n); 159 CCU_WRITE(sc, nkmp->reg, val); 160 161 /* Wait for PLL lock */ 162 while ((CCU_READ(sc, PLL_STABLE_STATUS_REG) & nkmp->lock) == 0) 163 ; 164 165 /* Switch cluster back to CPUX PLL */ 166 mutex_enter(&cpux_axi_cfg_lock); 167 val = CCU_READ(sc, CPU_CLK_SRC_REG); 168 val |= CPU_CLK_SRC_SELECT(cluster); 169 CCU_WRITE(sc, CPU_CLK_SRC_SELECT(cluster), val); 170 mutex_exit(&cpux_axi_cfg_lock); 171 172 return 0; 173 } 174 175 static struct sunxi_ccu_clk sun9i_a80_ccu_clks[] = { 176 [A80_CLK_C0CPUX] = { 177 .type = SUNXI_CCU_NKMP, 178 .base.name = "pll_c0cpux", 179 .u.nkmp.reg = PLL_C0CPUX_CTRL_REG, 180 .u.nkmp.parent = "hosc", 181 .u.nkmp.n = __BITS(15,8), 182 .u.nkmp.k = 0, 183 .u.nkmp.m = __BITS(1,0), 184 .u.nkmp.p = __BIT(16), 185 .u.nkmp.enable = __BIT(31), 186 .u.nkmp.flags = SUNXI_CCU_NKMP_SCALE_CLOCK | 187 SUNXI_CCU_NKMP_FACTOR_N_EXACT | 188 SUNXI_CCU_NKMP_FACTOR_P_X4, 189 .u.nkmp.lock = __BIT(1), /* PLL_STABLE_STATUS_REG */ 190 .u.nkmp.table = NULL, 191 .enable = sunxi_ccu_nkmp_enable, 192 .get_rate = sunxi_ccu_nkmp_get_rate, 193 .set_rate = sun9i_a80_ccu_cpux_set_rate, 194 .get_parent = sunxi_ccu_nkmp_get_parent, 195 }, 196 197 [A80_CLK_C1CPUX] = { 198 .type = SUNXI_CCU_NKMP, 199 .base.name = "pll_c1cpux", 200 .u.nkmp.reg = PLL_C1CPUX_CTRL_REG, 201 .u.nkmp.parent = "hosc", 202 .u.nkmp.n = __BITS(15,8), 203 .u.nkmp.k = 0, 204 .u.nkmp.m = __BITS(1,0), 205 .u.nkmp.p = __BIT(16), 206 .u.nkmp.enable = __BIT(31), 207 .u.nkmp.flags = SUNXI_CCU_NKMP_SCALE_CLOCK | 208 SUNXI_CCU_NKMP_FACTOR_N_EXACT | 209 SUNXI_CCU_NKMP_FACTOR_P_X4, 210 .u.nkmp.lock = __BIT(1), /* PLL_STABLE_STATUS_REG */ 211 .u.nkmp.table = NULL, 212 .enable = sunxi_ccu_nkmp_enable, 213 .get_rate = sunxi_ccu_nkmp_get_rate, 214 .set_rate = sun9i_a80_ccu_cpux_set_rate, 215 .get_parent = sunxi_ccu_nkmp_get_parent, 216 }, 217 218 SUNXI_CCU_NKMP(A80_CLK_PLL_PERIPH0, "pll_periph0", "hosc", 219 PLL_PERIPH0_CTRL_REG, /* reg */ 220 __BITS(15,8), /* n */ 221 __BIT(16), /* k */ 222 0, /* m */ 223 __BIT(18), /* p */ 224 __BIT(31), /* enable */ 225 SUNXI_CCU_NKMP_FACTOR_N_EXACT), 226 SUNXI_CCU_NKMP(A80_CLK_PLL_PERIPH1, "pll_periph1", "hosc", 227 PLL_PERIPH1_CTRL_REG, /* reg */ 228 __BITS(15,8), /* n */ 229 __BIT(16), /* k */ 230 0, /* m */ 231 __BIT(18), /* p */ 232 __BIT(31), /* enable */ 233 SUNXI_CCU_NKMP_FACTOR_N_EXACT), 234 235 SUNXI_CCU_DIV(A80_CLK_GTBUS, "gtbus", gtbus_parents, 236 GTBUS_CLK_CFG_REG, /* reg */ 237 __BITS(1,0), /* div */ 238 __BITS(25,24), /* sel */ 239 0), 240 241 SUNXI_CCU_DIV(A80_CLK_AHB0, "ahb0", ahb0_parents, 242 AHB0_CLK_CFG_REG, /* reg */ 243 __BITS(1,0), /* div */ 244 __BITS(25,24), /* sel */ 245 SUNXI_CCU_DIV_POWER_OF_TWO), 246 247 SUNXI_CCU_DIV(A80_CLK_AHB1, "ahb1", ahb1_parents, 248 AHB1_CLK_CFG_REG, /* reg */ 249 __BITS(1,0), /* div */ 250 __BITS(25,24), /* sel */ 251 SUNXI_CCU_DIV_POWER_OF_TWO), 252 253 SUNXI_CCU_DIV(A80_CLK_AHB2, "ahb2", ahb2_parents, 254 AHB2_CLK_CFG_REG, /* reg */ 255 __BITS(1,0), /* div */ 256 __BITS(25,24), /* sel */ 257 SUNXI_CCU_DIV_POWER_OF_TWO), 258 259 SUNXI_CCU_DIV(A80_CLK_APB0, "apb0", apb_parents, 260 APB0_CLK_CFG_REG, /* reg */ 261 __BITS(1,0), /* div */ 262 __BIT(24), /* sel */ 263 SUNXI_CCU_DIV_POWER_OF_TWO), 264 265 SUNXI_CCU_NM(A80_CLK_APB1, "apb1", apb_parents, 266 APB1_CLK_CFG_REG, /* reg */ 267 __BITS(17,16), /* n */ 268 __BITS(4,0), /* m */ 269 __BIT(24), /* sel */ 270 0, /* enable */ 271 SUNXI_CCU_NM_POWER_OF_TWO), 272 273 SUNXI_CCU_NM(A80_CLK_MMC0, "mmc0", mmc_parents, 274 SDMMC0_CLK_REG, /* reg */ 275 __BITS(17,16), /* n */ 276 __BITS(3,0), /* m */ 277 __BITS(27,24), /* sel */ 278 __BIT(31), /* enable */ 279 SUNXI_CCU_NM_POWER_OF_TWO), 280 SUNXI_CCU_PHASE(A80_CLK_MMC0_SAMPLE, "mmc0_sample", "mmc0", 281 SDMMC0_CLK_REG, __BITS(22,20)), 282 SUNXI_CCU_PHASE(A80_CLK_MMC0_OUTPUT, "mmc0_output", "mmc0", 283 SDMMC0_CLK_REG, __BITS(10,8)), 284 SUNXI_CCU_NM(A80_CLK_MMC1, "mmc1", mmc_parents, 285 SDMMC1_CLK_REG, /* reg */ 286 __BITS(17,16), /* n */ 287 __BITS(3,0), /* m */ 288 __BITS(27,24), /* sel */ 289 __BIT(31), /* enable */ 290 SUNXI_CCU_NM_POWER_OF_TWO), 291 SUNXI_CCU_PHASE(A80_CLK_MMC1_SAMPLE, "mmc1_sample", "mmc1", 292 SDMMC1_CLK_REG, __BITS(22,20)), 293 SUNXI_CCU_PHASE(A80_CLK_MMC1_OUTPUT, "mmc1_output", "mmc1", 294 SDMMC1_CLK_REG, __BITS(10,8)), 295 SUNXI_CCU_NM(A80_CLK_MMC2, "mmc2", mmc_parents, 296 SDMMC2_CLK_REG, /* reg */ 297 __BITS(17,16), /* n */ 298 __BITS(3,0), /* m */ 299 __BITS(27,24), /* sel */ 300 __BIT(31), /* enable */ 301 SUNXI_CCU_NM_POWER_OF_TWO), 302 SUNXI_CCU_PHASE(A80_CLK_MMC2_SAMPLE, "mmc2_sample", "mmc2", 303 SDMMC2_CLK_REG, __BITS(22,20)), 304 SUNXI_CCU_PHASE(A80_CLK_MMC2_OUTPUT, "mmc2_output", "mmc2", 305 SDMMC2_CLK_REG, __BITS(10,8)), 306 307 SUNXI_CCU_GATE(A80_CLK_BUS_FD, "ahb0-fd", "ahb0", 308 BUS_CLK_GATING_REG0, 0), 309 SUNXI_CCU_GATE(A80_CLK_BUS_GPU_CTRL, "ahb0-gpu-ctrl", "ahb0", 310 BUS_CLK_GATING_REG0, 3), 311 SUNXI_CCU_GATE(A80_CLK_BUS_SS, "ahb0-ss", "ahb0", 312 BUS_CLK_GATING_REG0, 5), 313 SUNXI_CCU_GATE(A80_CLK_BUS_MMC, "ahb0-mmc", "ahb0", 314 BUS_CLK_GATING_REG0, 8), 315 SUNXI_CCU_GATE(A80_CLK_BUS_NAND1, "ahb0-nand1", "ahb0", 316 BUS_CLK_GATING_REG0, 12), 317 SUNXI_CCU_GATE(A80_CLK_BUS_NAND0, "ahb0-nand0", "ahb0", 318 BUS_CLK_GATING_REG0, 13), 319 SUNXI_CCU_GATE(A80_CLK_BUS_TS, "ahb0-ts", "ahb0", 320 BUS_CLK_GATING_REG0, 18), 321 SUNXI_CCU_GATE(A80_CLK_BUS_SPI0, "ahb0-spi0", "ahb0", 322 BUS_CLK_GATING_REG0, 20), 323 SUNXI_CCU_GATE(A80_CLK_BUS_SPI1, "ahb0-spi1", "ahb0", 324 BUS_CLK_GATING_REG0, 21), 325 SUNXI_CCU_GATE(A80_CLK_BUS_SPI2, "ahb0-spi2", "ahb0", 326 BUS_CLK_GATING_REG0, 22), 327 SUNXI_CCU_GATE(A80_CLK_BUS_SPI3, "ahb0-spi3", "ahb0", 328 BUS_CLK_GATING_REG0, 23), 329 330 SUNXI_CCU_GATE(A80_CLK_BUS_USB, "ahb1-usb", "ahb1", 331 BUS_CLK_GATING_REG1, 1), 332 SUNXI_CCU_GATE(A80_CLK_BUS_MSGBOX, "ahb1-msgbox", "ahb1", 333 BUS_CLK_GATING_REG1, 21), 334 SUNXI_CCU_GATE(A80_CLK_BUS_SPINLOCK, "ahb1-spinlock", "ahb1", 335 BUS_CLK_GATING_REG1, 22), 336 SUNXI_CCU_GATE(A80_CLK_BUS_HSTIMER, "ahb1-hstimer", "ahb1", 337 BUS_CLK_GATING_REG1, 23), 338 SUNXI_CCU_GATE(A80_CLK_BUS_DMA, "ahb1-dma", "ahb1", 339 BUS_CLK_GATING_REG1, 24), 340 341 SUNXI_CCU_GATE(A80_CLK_BUS_LCD0, "ahb2-lcd0", "ahb2", 342 BUS_CLK_GATING_REG2, 0), 343 SUNXI_CCU_GATE(A80_CLK_BUS_LCD1, "ahb2-lcd1", "ahb2", 344 BUS_CLK_GATING_REG2, 1), 345 SUNXI_CCU_GATE(A80_CLK_BUS_CSI, "ahb2-csi", "ahb2", 346 BUS_CLK_GATING_REG2, 4), 347 SUNXI_CCU_GATE(A80_CLK_BUS_DE, "ahb2-de", "ahb2", 348 BUS_CLK_GATING_REG2, 7), 349 SUNXI_CCU_GATE(A80_CLK_BUS_MP, "ahb2-mp", "ahb2", 350 BUS_CLK_GATING_REG2, 8), 351 352 SUNXI_CCU_GATE(A80_CLK_BUS_PIO, "apb0-pio", "apb0", 353 BUS_CLK_GATING_REG3, 5), 354 SUNXI_CCU_GATE(A80_CLK_BUS_LRADC, "apb0-lradc", "apb0", 355 BUS_CLK_GATING_REG3, 15), 356 SUNXI_CCU_GATE(A80_CLK_BUS_GPADC, "apb0-gpadc", "apb0", 357 BUS_CLK_GATING_REG3, 17), 358 359 SUNXI_CCU_GATE(A80_CLK_BUS_I2C0, "apb1-i2c0", "apb1", 360 BUS_CLK_GATING_REG4, 0), 361 SUNXI_CCU_GATE(A80_CLK_BUS_I2C1, "apb1-i2c1", "apb1", 362 BUS_CLK_GATING_REG4, 1), 363 SUNXI_CCU_GATE(A80_CLK_BUS_I2C2, "apb1-i2c2", "apb1", 364 BUS_CLK_GATING_REG4, 2), 365 SUNXI_CCU_GATE(A80_CLK_BUS_I2C3, "apb1-i2c3", "apb1", 366 BUS_CLK_GATING_REG4, 3), 367 SUNXI_CCU_GATE(A80_CLK_BUS_I2C4, "apb1-i2c4", "apb1", 368 BUS_CLK_GATING_REG4, 4), 369 SUNXI_CCU_GATE(A80_CLK_BUS_UART0, "apb1-uart0", "apb1", 370 BUS_CLK_GATING_REG4, 16), 371 SUNXI_CCU_GATE(A80_CLK_BUS_UART1, "apb1-uart1", "apb1", 372 BUS_CLK_GATING_REG4, 17), 373 SUNXI_CCU_GATE(A80_CLK_BUS_UART2, "apb1-uart2", "apb1", 374 BUS_CLK_GATING_REG4, 18), 375 SUNXI_CCU_GATE(A80_CLK_BUS_UART3, "apb1-uart3", "apb1", 376 BUS_CLK_GATING_REG4, 19), 377 SUNXI_CCU_GATE(A80_CLK_BUS_UART4, "apb1-uart4", "apb1", 378 BUS_CLK_GATING_REG4, 20), 379 SUNXI_CCU_GATE(A80_CLK_BUS_UART5, "apb1-uart5", "apb1", 380 BUS_CLK_GATING_REG4, 21), 381 }; 382 383 static int 384 sun9i_a80_ccu_match(device_t parent, cfdata_t cf, void *aux) 385 { 386 struct fdt_attach_args * const faa = aux; 387 388 return of_match_compatible(faa->faa_phandle, compatible); 389 } 390 391 static void 392 sun9i_a80_ccu_attach(device_t parent, device_t self, void *aux) 393 { 394 struct sunxi_ccu_softc * const sc = device_private(self); 395 struct fdt_attach_args * const faa = aux; 396 397 sc->sc_dev = self; 398 sc->sc_phandle = faa->faa_phandle; 399 sc->sc_bst = faa->faa_bst; 400 401 sc->sc_resets = sun9i_a80_ccu_resets; 402 sc->sc_nresets = __arraycount(sun9i_a80_ccu_resets); 403 404 sc->sc_clks = sun9i_a80_ccu_clks; 405 sc->sc_nclks = __arraycount(sun9i_a80_ccu_clks); 406 407 mutex_init(&cpux_axi_cfg_lock, MUTEX_DEFAULT, IPL_HIGH); 408 409 if (sunxi_ccu_attach(sc) != 0) 410 return; 411 412 aprint_naive("\n"); 413 aprint_normal(": A80 CCU\n"); 414 415 sunxi_ccu_print(sc); 416 } 417
Indexes created Tue Oct 07 21:09:53 GMT 2025