1 /* 2 * TI DA850/OMAP-L138 chip specific setup 3 * 4 * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/ 5 * 6 * Derived from: arch/arm/mach-davinci/da830.c 7 * Original Copyrights follow: 8 * 9 * 2009 (c) MontaVista Software, Inc. This file is licensed under 10 * the terms of the GNU General Public License version 2. This program 11 * is licensed "as is" without any warranty of any kind, whether express 12 * or implied. 13 */ 14 #include <linux/kernel.h> 15 #include <linux/init.h> 16 #include <linux/clk.h> 17 #include <linux/platform_device.h> 18 #include <linux/cpufreq.h> 19 #include <linux/regulator/consumer.h> 20 21 #include <asm/mach/map.h> 22 23 #include <mach/clock.h> 24 #include <mach/psc.h> 25 #include <mach/mux.h> 26 #include <mach/irqs.h> 27 #include <mach/cputype.h> 28 #include <mach/common.h> 29 #include <mach/time.h> 30 #include <mach/da8xx.h> 31 #include <mach/cpufreq.h> 32 33 #include "clock.h" 34 #include "mux.h" 35 36 /* SoC specific clock flags */ 37 #define DA850_CLK_ASYNC3 BIT(16) 38 39 #define DA850_PLL1_BASE 0x01e1a000 40 #define DA850_TIMER64P2_BASE 0x01f0c000 41 #define DA850_TIMER64P3_BASE 0x01f0d000 42 43 #define DA850_REF_FREQ 24000000 44 45 #define CFGCHIP3_ASYNC3_CLKSRC BIT(4) 46 #define CFGCHIP0_PLL_MASTER_LOCK BIT(4) 47 48 static int da850_set_armrate(struct clk *clk, unsigned long rate); 49 static int da850_round_armrate(struct clk *clk, unsigned long rate); 50 static int da850_set_pll0rate(struct clk *clk, unsigned long armrate); 51 52 static struct pll_data pll0_data = { 53 .num = 1, 54 .phys_base = DA8XX_PLL0_BASE, 55 .flags = PLL_HAS_PREDIV | PLL_HAS_POSTDIV, 56 }; 57 58 static struct clk ref_clk = { 59 .name = "ref_clk", 60 .rate = DA850_REF_FREQ, 61 }; 62 63 static struct clk pll0_clk = { 64 .name = "pll0", 65 .parent = &ref_clk, 66 .pll_data = &pll0_data, 67 .flags = CLK_PLL, 68 .set_rate = da850_set_pll0rate, 69 }; 70 71 static struct clk pll0_aux_clk = { 72 .name = "pll0_aux_clk", 73 .parent = &pll0_clk, 74 .flags = CLK_PLL | PRE_PLL, 75 }; 76 77 static struct clk pll0_sysclk2 = { 78 .name = "pll0_sysclk2", 79 .parent = &pll0_clk, 80 .flags = CLK_PLL, 81 .div_reg = PLLDIV2, 82 }; 83 84 static struct clk pll0_sysclk3 = { 85 .name = "pll0_sysclk3", 86 .parent = &pll0_clk, 87 .flags = CLK_PLL, 88 .div_reg = PLLDIV3, 89 }; 90 91 static struct clk pll0_sysclk4 = { 92 .name = "pll0_sysclk4", 93 .parent = &pll0_clk, 94 .flags = CLK_PLL, 95 .div_reg = PLLDIV4, 96 }; 97 98 static struct clk pll0_sysclk5 = { 99 .name = "pll0_sysclk5", 100 .parent = &pll0_clk, 101 .flags = CLK_PLL, 102 .div_reg = PLLDIV5, 103 }; 104 105 static struct clk pll0_sysclk6 = { 106 .name = "pll0_sysclk6", 107 .parent = &pll0_clk, 108 .flags = CLK_PLL, 109 .div_reg = PLLDIV6, 110 }; 111 112 static struct clk pll0_sysclk7 = { 113 .name = "pll0_sysclk7", 114 .parent = &pll0_clk, 115 .flags = CLK_PLL, 116 .div_reg = PLLDIV7, 117 }; 118 119 static struct pll_data pll1_data = { 120 .num = 2, 121 .phys_base = DA850_PLL1_BASE, 122 .flags = PLL_HAS_POSTDIV, 123 }; 124 125 static struct clk pll1_clk = { 126 .name = "pll1", 127 .parent = &ref_clk, 128 .pll_data = &pll1_data, 129 .flags = CLK_PLL, 130 }; 131 132 static struct clk pll1_aux_clk = { 133 .name = "pll1_aux_clk", 134 .parent = &pll1_clk, 135 .flags = CLK_PLL | PRE_PLL, 136 }; 137 138 static struct clk pll1_sysclk2 = { 139 .name = "pll1_sysclk2", 140 .parent = &pll1_clk, 141 .flags = CLK_PLL, 142 .div_reg = PLLDIV2, 143 }; 144 145 static struct clk pll1_sysclk3 = { 146 .name = "pll1_sysclk3", 147 .parent = &pll1_clk, 148 .flags = CLK_PLL, 149 .div_reg = PLLDIV3, 150 }; 151 152 static struct clk pll1_sysclk4 = { 153 .name = "pll1_sysclk4", 154 .parent = &pll1_clk, 155 .flags = CLK_PLL, 156 .div_reg = PLLDIV4, 157 }; 158 159 static struct clk pll1_sysclk5 = { 160 .name = "pll1_sysclk5", 161 .parent = &pll1_clk, 162 .flags = CLK_PLL, 163 .div_reg = PLLDIV5, 164 }; 165 166 static struct clk pll1_sysclk6 = { 167 .name = "pll0_sysclk6", 168 .parent = &pll0_clk, 169 .flags = CLK_PLL, 170 .div_reg = PLLDIV6, 171 }; 172 173 static struct clk pll1_sysclk7 = { 174 .name = "pll1_sysclk7", 175 .parent = &pll1_clk, 176 .flags = CLK_PLL, 177 .div_reg = PLLDIV7, 178 }; 179 180 static struct clk i2c0_clk = { 181 .name = "i2c0", 182 .parent = &pll0_aux_clk, 183 }; 184 185 static struct clk timerp64_0_clk = { 186 .name = "timer0", 187 .parent = &pll0_aux_clk, 188 }; 189 190 static struct clk timerp64_1_clk = { 191 .name = "timer1", 192 .parent = &pll0_aux_clk, 193 }; 194 195 static struct clk arm_rom_clk = { 196 .name = "arm_rom", 197 .parent = &pll0_sysclk2, 198 .lpsc = DA8XX_LPSC0_ARM_RAM_ROM, 199 .flags = ALWAYS_ENABLED, 200 }; 201 202 static struct clk tpcc0_clk = { 203 .name = "tpcc0", 204 .parent = &pll0_sysclk2, 205 .lpsc = DA8XX_LPSC0_TPCC, 206 .flags = ALWAYS_ENABLED | CLK_PSC, 207 }; 208 209 static struct clk tptc0_clk = { 210 .name = "tptc0", 211 .parent = &pll0_sysclk2, 212 .lpsc = DA8XX_LPSC0_TPTC0, 213 .flags = ALWAYS_ENABLED, 214 }; 215 216 static struct clk tptc1_clk = { 217 .name = "tptc1", 218 .parent = &pll0_sysclk2, 219 .lpsc = DA8XX_LPSC0_TPTC1, 220 .flags = ALWAYS_ENABLED, 221 }; 222 223 static struct clk tpcc1_clk = { 224 .name = "tpcc1", 225 .parent = &pll0_sysclk2, 226 .lpsc = DA850_LPSC1_TPCC1, 227 .gpsc = 1, 228 .flags = CLK_PSC | ALWAYS_ENABLED, 229 }; 230 231 static struct clk tptc2_clk = { 232 .name = "tptc2", 233 .parent = &pll0_sysclk2, 234 .lpsc = DA850_LPSC1_TPTC2, 235 .gpsc = 1, 236 .flags = ALWAYS_ENABLED, 237 }; 238 239 static struct clk uart0_clk = { 240 .name = "uart0", 241 .parent = &pll0_sysclk2, 242 .lpsc = DA8XX_LPSC0_UART0, 243 }; 244 245 static struct clk uart1_clk = { 246 .name = "uart1", 247 .parent = &pll0_sysclk2, 248 .lpsc = DA8XX_LPSC1_UART1, 249 .gpsc = 1, 250 .flags = DA850_CLK_ASYNC3, 251 }; 252 253 static struct clk uart2_clk = { 254 .name = "uart2", 255 .parent = &pll0_sysclk2, 256 .lpsc = DA8XX_LPSC1_UART2, 257 .gpsc = 1, 258 .flags = DA850_CLK_ASYNC3, 259 }; 260 261 static struct clk aintc_clk = { 262 .name = "aintc", 263 .parent = &pll0_sysclk4, 264 .lpsc = DA8XX_LPSC0_AINTC, 265 .flags = ALWAYS_ENABLED, 266 }; 267 268 static struct clk gpio_clk = { 269 .name = "gpio", 270 .parent = &pll0_sysclk4, 271 .lpsc = DA8XX_LPSC1_GPIO, 272 .gpsc = 1, 273 }; 274 275 static struct clk i2c1_clk = { 276 .name = "i2c1", 277 .parent = &pll0_sysclk4, 278 .lpsc = DA8XX_LPSC1_I2C, 279 .gpsc = 1, 280 }; 281 282 static struct clk emif3_clk = { 283 .name = "emif3", 284 .parent = &pll0_sysclk5, 285 .lpsc = DA8XX_LPSC1_EMIF3C, 286 .gpsc = 1, 287 .flags = ALWAYS_ENABLED, 288 }; 289 290 static struct clk arm_clk = { 291 .name = "arm", 292 .parent = &pll0_sysclk6, 293 .lpsc = DA8XX_LPSC0_ARM, 294 .flags = ALWAYS_ENABLED, 295 .set_rate = da850_set_armrate, 296 .round_rate = da850_round_armrate, 297 }; 298 299 static struct clk rmii_clk = { 300 .name = "rmii", 301 .parent = &pll0_sysclk7, 302 }; 303 304 static struct clk emac_clk = { 305 .name = "emac", 306 .parent = &pll0_sysclk4, 307 .lpsc = DA8XX_LPSC1_CPGMAC, 308 .gpsc = 1, 309 }; 310 311 static struct clk mcasp_clk = { 312 .name = "mcasp", 313 .parent = &pll0_sysclk2, 314 .lpsc = DA8XX_LPSC1_McASP0, 315 .gpsc = 1, 316 }; 317 318 static struct clk lcdc_clk = { 319 .name = "lcdc", 320 .parent = &pll0_sysclk2, 321 .lpsc = DA8XX_LPSC1_LCDC, 322 .gpsc = 1, 323 }; 324 325 static struct clk mmcsd_clk = { 326 .name = "mmcsd", 327 .parent = &pll0_sysclk2, 328 .lpsc = DA8XX_LPSC0_MMC_SD, 329 }; 330 331 static struct clk aemif_clk = { 332 .name = "aemif", 333 .parent = &pll0_sysclk3, 334 .lpsc = DA8XX_LPSC0_EMIF25, 335 .flags = ALWAYS_ENABLED, 336 }; 337 338 static struct davinci_clk da850_clks[] = { 339 CLK(NULL, "ref", &ref_clk), 340 CLK(NULL, "pll0", &pll0_clk), 341 CLK(NULL, "pll0_aux", &pll0_aux_clk), 342 CLK(NULL, "pll0_sysclk2", &pll0_sysclk2), 343 CLK(NULL, "pll0_sysclk3", &pll0_sysclk3), 344 CLK(NULL, "pll0_sysclk4", &pll0_sysclk4), 345 CLK(NULL, "pll0_sysclk5", &pll0_sysclk5), 346 CLK(NULL, "pll0_sysclk6", &pll0_sysclk6), 347 CLK(NULL, "pll0_sysclk7", &pll0_sysclk7), 348 CLK(NULL, "pll1", &pll1_clk), 349 CLK(NULL, "pll1_aux", &pll1_aux_clk), 350 CLK(NULL, "pll1_sysclk2", &pll1_sysclk2), 351 CLK(NULL, "pll1_sysclk3", &pll1_sysclk3), 352 CLK(NULL, "pll1_sysclk4", &pll1_sysclk4), 353 CLK(NULL, "pll1_sysclk5", &pll1_sysclk5), 354 CLK(NULL, "pll1_sysclk6", &pll1_sysclk6), 355 CLK(NULL, "pll1_sysclk7", &pll1_sysclk7), 356 CLK("i2c_davinci.1", NULL, &i2c0_clk), 357 CLK(NULL, "timer0", &timerp64_0_clk), 358 CLK("watchdog", NULL, &timerp64_1_clk), 359 CLK(NULL, "arm_rom", &arm_rom_clk), 360 CLK(NULL, "tpcc0", &tpcc0_clk), 361 CLK(NULL, "tptc0", &tptc0_clk), 362 CLK(NULL, "tptc1", &tptc1_clk), 363 CLK(NULL, "tpcc1", &tpcc1_clk), 364 CLK(NULL, "tptc2", &tptc2_clk), 365 CLK(NULL, "uart0", &uart0_clk), 366 CLK(NULL, "uart1", &uart1_clk), 367 CLK(NULL, "uart2", &uart2_clk), 368 CLK(NULL, "aintc", &aintc_clk), 369 CLK(NULL, "gpio", &gpio_clk), 370 CLK("i2c_davinci.2", NULL, &i2c1_clk), 371 CLK(NULL, "emif3", &emif3_clk), 372 CLK(NULL, "arm", &arm_clk), 373 CLK(NULL, "rmii", &rmii_clk), 374 CLK("davinci_emac.1", NULL, &emac_clk), 375 CLK("davinci-mcasp.0", NULL, &mcasp_clk), 376 CLK("da8xx_lcdc.0", NULL, &lcdc_clk), 377 CLK("davinci_mmc.0", NULL, &mmcsd_clk), 378 CLK(NULL, "aemif", &aemif_clk), 379 CLK(NULL, NULL, NULL), 380 }; 381 382 /* 383 * Device specific mux setup 384 * 385 * soc description mux mode mode mux dbg 386 * reg offset mask mode 387 */ 388 static const struct mux_config da850_pins[] = { 389 #ifdef CONFIG_DAVINCI_MUX 390 /* UART0 function */ 391 MUX_CFG(DA850, NUART0_CTS, 3, 24, 15, 2, false) 392 MUX_CFG(DA850, NUART0_RTS, 3, 28, 15, 2, false) 393 MUX_CFG(DA850, UART0_RXD, 3, 16, 15, 2, false) 394 MUX_CFG(DA850, UART0_TXD, 3, 20, 15, 2, false) 395 /* UART1 function */ 396 MUX_CFG(DA850, UART1_RXD, 4, 24, 15, 2, false) 397 MUX_CFG(DA850, UART1_TXD, 4, 28, 15, 2, false) 398 /* UART2 function */ 399 MUX_CFG(DA850, UART2_RXD, 4, 16, 15, 2, false) 400 MUX_CFG(DA850, UART2_TXD, 4, 20, 15, 2, false) 401 /* I2C1 function */ 402 MUX_CFG(DA850, I2C1_SCL, 4, 16, 15, 4, false) 403 MUX_CFG(DA850, I2C1_SDA, 4, 20, 15, 4, false) 404 /* I2C0 function */ 405 MUX_CFG(DA850, I2C0_SDA, 4, 12, 15, 2, false) 406 MUX_CFG(DA850, I2C0_SCL, 4, 8, 15, 2, false) 407 /* EMAC function */ 408 MUX_CFG(DA850, MII_TXEN, 2, 4, 15, 8, false) 409 MUX_CFG(DA850, MII_TXCLK, 2, 8, 15, 8, false) 410 MUX_CFG(DA850, MII_COL, 2, 12, 15, 8, false) 411 MUX_CFG(DA850, MII_TXD_3, 2, 16, 15, 8, false) 412 MUX_CFG(DA850, MII_TXD_2, 2, 20, 15, 8, false) 413 MUX_CFG(DA850, MII_TXD_1, 2, 24, 15, 8, false) 414 MUX_CFG(DA850, MII_TXD_0, 2, 28, 15, 8, false) 415 MUX_CFG(DA850, MII_RXCLK, 3, 0, 15, 8, false) 416 MUX_CFG(DA850, MII_RXDV, 3, 4, 15, 8, false) 417 MUX_CFG(DA850, MII_RXER, 3, 8, 15, 8, false) 418 MUX_CFG(DA850, MII_CRS, 3, 12, 15, 8, false) 419 MUX_CFG(DA850, MII_RXD_3, 3, 16, 15, 8, false) 420 MUX_CFG(DA850, MII_RXD_2, 3, 20, 15, 8, false) 421 MUX_CFG(DA850, MII_RXD_1, 3, 24, 15, 8, false) 422 MUX_CFG(DA850, MII_RXD_0, 3, 28, 15, 8, false) 423 MUX_CFG(DA850, MDIO_CLK, 4, 0, 15, 8, false) 424 MUX_CFG(DA850, MDIO_D, 4, 4, 15, 8, false) 425 MUX_CFG(DA850, RMII_TXD_0, 14, 12, 15, 8, false) 426 MUX_CFG(DA850, RMII_TXD_1, 14, 8, 15, 8, false) 427 MUX_CFG(DA850, RMII_TXEN, 14, 16, 15, 8, false) 428 MUX_CFG(DA850, RMII_CRS_DV, 15, 4, 15, 8, false) 429 MUX_CFG(DA850, RMII_RXD_0, 14, 24, 15, 8, false) 430 MUX_CFG(DA850, RMII_RXD_1, 14, 20, 15, 8, false) 431 MUX_CFG(DA850, RMII_RXER, 14, 28, 15, 8, false) 432 MUX_CFG(DA850, RMII_MHZ_50_CLK, 15, 0, 15, 0, false) 433 /* McASP function */ 434 MUX_CFG(DA850, ACLKR, 0, 0, 15, 1, false) 435 MUX_CFG(DA850, ACLKX, 0, 4, 15, 1, false) 436 MUX_CFG(DA850, AFSR, 0, 8, 15, 1, false) 437 MUX_CFG(DA850, AFSX, 0, 12, 15, 1, false) 438 MUX_CFG(DA850, AHCLKR, 0, 16, 15, 1, false) 439 MUX_CFG(DA850, AHCLKX, 0, 20, 15, 1, false) 440 MUX_CFG(DA850, AMUTE, 0, 24, 15, 1, false) 441 MUX_CFG(DA850, AXR_15, 1, 0, 15, 1, false) 442 MUX_CFG(DA850, AXR_14, 1, 4, 15, 1, false) 443 MUX_CFG(DA850, AXR_13, 1, 8, 15, 1, false) 444 MUX_CFG(DA850, AXR_12, 1, 12, 15, 1, false) 445 MUX_CFG(DA850, AXR_11, 1, 16, 15, 1, false) 446 MUX_CFG(DA850, AXR_10, 1, 20, 15, 1, false) 447 MUX_CFG(DA850, AXR_9, 1, 24, 15, 1, false) 448 MUX_CFG(DA850, AXR_8, 1, 28, 15, 1, false) 449 MUX_CFG(DA850, AXR_7, 2, 0, 15, 1, false) 450 MUX_CFG(DA850, AXR_6, 2, 4, 15, 1, false) 451 MUX_CFG(DA850, AXR_5, 2, 8, 15, 1, false) 452 MUX_CFG(DA850, AXR_4, 2, 12, 15, 1, false) 453 MUX_CFG(DA850, AXR_3, 2, 16, 15, 1, false) 454 MUX_CFG(DA850, AXR_2, 2, 20, 15, 1, false) 455 MUX_CFG(DA850, AXR_1, 2, 24, 15, 1, false) 456 MUX_CFG(DA850, AXR_0, 2, 28, 15, 1, false) 457 /* LCD function */ 458 MUX_CFG(DA850, LCD_D_7, 16, 8, 15, 2, false) 459 MUX_CFG(DA850, LCD_D_6, 16, 12, 15, 2, false) 460 MUX_CFG(DA850, LCD_D_5, 16, 16, 15, 2, false) 461 MUX_CFG(DA850, LCD_D_4, 16, 20, 15, 2, false) 462 MUX_CFG(DA850, LCD_D_3, 16, 24, 15, 2, false) 463 MUX_CFG(DA850, LCD_D_2, 16, 28, 15, 2, false) 464 MUX_CFG(DA850, LCD_D_1, 17, 0, 15, 2, false) 465 MUX_CFG(DA850, LCD_D_0, 17, 4, 15, 2, false) 466 MUX_CFG(DA850, LCD_D_15, 17, 8, 15, 2, false) 467 MUX_CFG(DA850, LCD_D_14, 17, 12, 15, 2, false) 468 MUX_CFG(DA850, LCD_D_13, 17, 16, 15, 2, false) 469 MUX_CFG(DA850, LCD_D_12, 17, 20, 15, 2, false) 470 MUX_CFG(DA850, LCD_D_11, 17, 24, 15, 2, false) 471 MUX_CFG(DA850, LCD_D_10, 17, 28, 15, 2, false) 472 MUX_CFG(DA850, LCD_D_9, 18, 0, 15, 2, false) 473 MUX_CFG(DA850, LCD_D_8, 18, 4, 15, 2, false) 474 MUX_CFG(DA850, LCD_PCLK, 18, 24, 15, 2, false) 475 MUX_CFG(DA850, LCD_HSYNC, 19, 0, 15, 2, false) 476 MUX_CFG(DA850, LCD_VSYNC, 19, 4, 15, 2, false) 477 MUX_CFG(DA850, NLCD_AC_ENB_CS, 19, 24, 15, 2, false) 478 /* MMC/SD0 function */ 479 MUX_CFG(DA850, MMCSD0_DAT_0, 10, 8, 15, 2, false) 480 MUX_CFG(DA850, MMCSD0_DAT_1, 10, 12, 15, 2, false) 481 MUX_CFG(DA850, MMCSD0_DAT_2, 10, 16, 15, 2, false) 482 MUX_CFG(DA850, MMCSD0_DAT_3, 10, 20, 15, 2, false) 483 MUX_CFG(DA850, MMCSD0_CLK, 10, 0, 15, 2, false) 484 MUX_CFG(DA850, MMCSD0_CMD, 10, 4, 15, 2, false) 485 /* EMIF2.5/EMIFA function */ 486 MUX_CFG(DA850, EMA_D_7, 9, 0, 15, 1, false) 487 MUX_CFG(DA850, EMA_D_6, 9, 4, 15, 1, false) 488 MUX_CFG(DA850, EMA_D_5, 9, 8, 15, 1, false) 489 MUX_CFG(DA850, EMA_D_4, 9, 12, 15, 1, false) 490 MUX_CFG(DA850, EMA_D_3, 9, 16, 15, 1, false) 491 MUX_CFG(DA850, EMA_D_2, 9, 20, 15, 1, false) 492 MUX_CFG(DA850, EMA_D_1, 9, 24, 15, 1, false) 493 MUX_CFG(DA850, EMA_D_0, 9, 28, 15, 1, false) 494 MUX_CFG(DA850, EMA_A_1, 12, 24, 15, 1, false) 495 MUX_CFG(DA850, EMA_A_2, 12, 20, 15, 1, false) 496 MUX_CFG(DA850, NEMA_CS_3, 7, 4, 15, 1, false) 497 MUX_CFG(DA850, NEMA_CS_4, 7, 8, 15, 1, false) 498 MUX_CFG(DA850, NEMA_WE, 7, 16, 15, 1, false) 499 MUX_CFG(DA850, NEMA_OE, 7, 20, 15, 1, false) 500 MUX_CFG(DA850, EMA_A_0, 12, 28, 15, 1, false) 501 MUX_CFG(DA850, EMA_A_3, 12, 16, 15, 1, false) 502 MUX_CFG(DA850, EMA_A_4, 12, 12, 15, 1, false) 503 MUX_CFG(DA850, EMA_A_5, 12, 8, 15, 1, false) 504 MUX_CFG(DA850, EMA_A_6, 12, 4, 15, 1, false) 505 MUX_CFG(DA850, EMA_A_7, 12, 0, 15, 1, false) 506 MUX_CFG(DA850, EMA_A_8, 11, 28, 15, 1, false) 507 MUX_CFG(DA850, EMA_A_9, 11, 24, 15, 1, false) 508 MUX_CFG(DA850, EMA_A_10, 11, 20, 15, 1, false) 509 MUX_CFG(DA850, EMA_A_11, 11, 16, 15, 1, false) 510 MUX_CFG(DA850, EMA_A_12, 11, 12, 15, 1, false) 511 MUX_CFG(DA850, EMA_A_13, 11, 8, 15, 1, false) 512 MUX_CFG(DA850, EMA_A_14, 11, 4, 15, 1, false) 513 MUX_CFG(DA850, EMA_A_15, 11, 0, 15, 1, false) 514 MUX_CFG(DA850, EMA_A_16, 10, 28, 15, 1, false) 515 MUX_CFG(DA850, EMA_A_17, 10, 24, 15, 1, false) 516 MUX_CFG(DA850, EMA_A_18, 10, 20, 15, 1, false) 517 MUX_CFG(DA850, EMA_A_19, 10, 16, 15, 1, false) 518 MUX_CFG(DA850, EMA_A_20, 10, 12, 15, 1, false) 519 MUX_CFG(DA850, EMA_A_21, 10, 8, 15, 1, false) 520 MUX_CFG(DA850, EMA_A_22, 10, 4, 15, 1, false) 521 MUX_CFG(DA850, EMA_A_23, 10, 0, 15, 1, false) 522 MUX_CFG(DA850, EMA_D_8, 8, 28, 15, 1, false) 523 MUX_CFG(DA850, EMA_D_9, 8, 24, 15, 1, false) 524 MUX_CFG(DA850, EMA_D_10, 8, 20, 15, 1, false) 525 MUX_CFG(DA850, EMA_D_11, 8, 16, 15, 1, false) 526 MUX_CFG(DA850, EMA_D_12, 8, 12, 15, 1, false) 527 MUX_CFG(DA850, EMA_D_13, 8, 8, 15, 1, false) 528 MUX_CFG(DA850, EMA_D_14, 8, 4, 15, 1, false) 529 MUX_CFG(DA850, EMA_D_15, 8, 0, 15, 1, false) 530 MUX_CFG(DA850, EMA_BA_1, 5, 24, 15, 1, false) 531 MUX_CFG(DA850, EMA_CLK, 6, 0, 15, 1, false) 532 MUX_CFG(DA850, EMA_WAIT_1, 6, 24, 15, 1, false) 533 MUX_CFG(DA850, NEMA_CS_2, 7, 0, 15, 1, false) 534 /* GPIO function */ 535 MUX_CFG(DA850, GPIO2_6, 6, 4, 15, 8, false) 536 MUX_CFG(DA850, GPIO2_8, 5, 28, 15, 8, false) 537 MUX_CFG(DA850, GPIO2_15, 5, 0, 15, 8, false) 538 MUX_CFG(DA850, GPIO4_0, 10, 28, 15, 8, false) 539 MUX_CFG(DA850, GPIO4_1, 10, 24, 15, 8, false) 540 #endif 541 }; 542 543 const short da850_uart0_pins[] __initdata = { 544 DA850_NUART0_CTS, DA850_NUART0_RTS, DA850_UART0_RXD, DA850_UART0_TXD, 545 -1 546 }; 547 548 const short da850_uart1_pins[] __initdata = { 549 DA850_UART1_RXD, DA850_UART1_TXD, 550 -1 551 }; 552 553 const short da850_uart2_pins[] __initdata = { 554 DA850_UART2_RXD, DA850_UART2_TXD, 555 -1 556 }; 557 558 const short da850_i2c0_pins[] __initdata = { 559 DA850_I2C0_SDA, DA850_I2C0_SCL, 560 -1 561 }; 562 563 const short da850_i2c1_pins[] __initdata = { 564 DA850_I2C1_SCL, DA850_I2C1_SDA, 565 -1 566 }; 567 568 const short da850_cpgmac_pins[] __initdata = { 569 DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3, 570 DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER, 571 DA850_MII_CRS, DA850_MII_RXCLK, DA850_MII_RXDV, DA850_MII_RXD_3, 572 DA850_MII_RXD_2, DA850_MII_RXD_1, DA850_MII_RXD_0, DA850_MDIO_CLK, 573 DA850_MDIO_D, 574 -1 575 }; 576 577 const short da850_rmii_pins[] __initdata = { 578 DA850_RMII_TXD_0, DA850_RMII_TXD_1, DA850_RMII_TXEN, 579 DA850_RMII_CRS_DV, DA850_RMII_RXD_0, DA850_RMII_RXD_1, 580 DA850_RMII_RXER, DA850_RMII_MHZ_50_CLK, DA850_MDIO_CLK, 581 DA850_MDIO_D, 582 -1 583 }; 584 585 const short da850_mcasp_pins[] __initdata = { 586 DA850_AHCLKX, DA850_ACLKX, DA850_AFSX, 587 DA850_AHCLKR, DA850_ACLKR, DA850_AFSR, DA850_AMUTE, 588 DA850_AXR_11, DA850_AXR_12, 589 -1 590 }; 591 592 const short da850_lcdcntl_pins[] __initdata = { 593 DA850_LCD_D_0, DA850_LCD_D_1, DA850_LCD_D_2, DA850_LCD_D_3, 594 DA850_LCD_D_4, DA850_LCD_D_5, DA850_LCD_D_6, DA850_LCD_D_7, 595 DA850_LCD_D_8, DA850_LCD_D_9, DA850_LCD_D_10, DA850_LCD_D_11, 596 DA850_LCD_D_12, DA850_LCD_D_13, DA850_LCD_D_14, DA850_LCD_D_15, 597 DA850_LCD_PCLK, DA850_LCD_HSYNC, DA850_LCD_VSYNC, DA850_NLCD_AC_ENB_CS, 598 -1 599 }; 600 601 const short da850_mmcsd0_pins[] __initdata = { 602 DA850_MMCSD0_DAT_0, DA850_MMCSD0_DAT_1, DA850_MMCSD0_DAT_2, 603 DA850_MMCSD0_DAT_3, DA850_MMCSD0_CLK, DA850_MMCSD0_CMD, 604 DA850_GPIO4_0, DA850_GPIO4_1, 605 -1 606 }; 607 608 const short da850_nand_pins[] __initdata = { 609 DA850_EMA_D_7, DA850_EMA_D_6, DA850_EMA_D_5, DA850_EMA_D_4, 610 DA850_EMA_D_3, DA850_EMA_D_2, DA850_EMA_D_1, DA850_EMA_D_0, 611 DA850_EMA_A_1, DA850_EMA_A_2, DA850_NEMA_CS_3, DA850_NEMA_CS_4, 612 DA850_NEMA_WE, DA850_NEMA_OE, 613 -1 614 }; 615 616 const short da850_nor_pins[] __initdata = { 617 DA850_EMA_BA_1, DA850_EMA_CLK, DA850_EMA_WAIT_1, DA850_NEMA_CS_2, 618 DA850_NEMA_WE, DA850_NEMA_OE, DA850_EMA_D_0, DA850_EMA_D_1, 619 DA850_EMA_D_2, DA850_EMA_D_3, DA850_EMA_D_4, DA850_EMA_D_5, 620 DA850_EMA_D_6, DA850_EMA_D_7, DA850_EMA_D_8, DA850_EMA_D_9, 621 DA850_EMA_D_10, DA850_EMA_D_11, DA850_EMA_D_12, DA850_EMA_D_13, 622 DA850_EMA_D_14, DA850_EMA_D_15, DA850_EMA_A_0, DA850_EMA_A_1, 623 DA850_EMA_A_2, DA850_EMA_A_3, DA850_EMA_A_4, DA850_EMA_A_5, 624 DA850_EMA_A_6, DA850_EMA_A_7, DA850_EMA_A_8, DA850_EMA_A_9, 625 DA850_EMA_A_10, DA850_EMA_A_11, DA850_EMA_A_12, DA850_EMA_A_13, 626 DA850_EMA_A_14, DA850_EMA_A_15, DA850_EMA_A_16, DA850_EMA_A_17, 627 DA850_EMA_A_18, DA850_EMA_A_19, DA850_EMA_A_20, DA850_EMA_A_21, 628 DA850_EMA_A_22, DA850_EMA_A_23, 629 -1 630 }; 631 632 /* FIQ are pri 0-1; otherwise 2-7, with 7 lowest priority */ 633 static u8 da850_default_priorities[DA850_N_CP_INTC_IRQ] = { 634 [IRQ_DA8XX_COMMTX] = 7, 635 [IRQ_DA8XX_COMMRX] = 7, 636 [IRQ_DA8XX_NINT] = 7, 637 [IRQ_DA8XX_EVTOUT0] = 7, 638 [IRQ_DA8XX_EVTOUT1] = 7, 639 [IRQ_DA8XX_EVTOUT2] = 7, 640 [IRQ_DA8XX_EVTOUT3] = 7, 641 [IRQ_DA8XX_EVTOUT4] = 7, 642 [IRQ_DA8XX_EVTOUT5] = 7, 643 [IRQ_DA8XX_EVTOUT6] = 7, 644 [IRQ_DA8XX_EVTOUT6] = 7, 645 [IRQ_DA8XX_EVTOUT7] = 7, 646 [IRQ_DA8XX_CCINT0] = 7, 647 [IRQ_DA8XX_CCERRINT] = 7, 648 [IRQ_DA8XX_TCERRINT0] = 7, 649 [IRQ_DA8XX_AEMIFINT] = 7, 650 [IRQ_DA8XX_I2CINT0] = 7, 651 [IRQ_DA8XX_MMCSDINT0] = 7, 652 [IRQ_DA8XX_MMCSDINT1] = 7, 653 [IRQ_DA8XX_ALLINT0] = 7, 654 [IRQ_DA8XX_RTC] = 7, 655 [IRQ_DA8XX_SPINT0] = 7, 656 [IRQ_DA8XX_TINT12_0] = 7, 657 [IRQ_DA8XX_TINT34_0] = 7, 658 [IRQ_DA8XX_TINT12_1] = 7, 659 [IRQ_DA8XX_TINT34_1] = 7, 660 [IRQ_DA8XX_UARTINT0] = 7, 661 [IRQ_DA8XX_KEYMGRINT] = 7, 662 [IRQ_DA8XX_SECINT] = 7, 663 [IRQ_DA8XX_SECKEYERR] = 7, 664 [IRQ_DA850_MPUADDRERR0] = 7, 665 [IRQ_DA850_MPUPROTERR0] = 7, 666 [IRQ_DA850_IOPUADDRERR0] = 7, 667 [IRQ_DA850_IOPUPROTERR0] = 7, 668 [IRQ_DA850_IOPUADDRERR1] = 7, 669 [IRQ_DA850_IOPUPROTERR1] = 7, 670 [IRQ_DA850_IOPUADDRERR2] = 7, 671 [IRQ_DA850_IOPUPROTERR2] = 7, 672 [IRQ_DA850_BOOTCFG_ADDR_ERR] = 7, 673 [IRQ_DA850_BOOTCFG_PROT_ERR] = 7, 674 [IRQ_DA850_MPUADDRERR1] = 7, 675 [IRQ_DA850_MPUPROTERR1] = 7, 676 [IRQ_DA850_IOPUADDRERR3] = 7, 677 [IRQ_DA850_IOPUPROTERR3] = 7, 678 [IRQ_DA850_IOPUADDRERR4] = 7, 679 [IRQ_DA850_IOPUPROTERR4] = 7, 680 [IRQ_DA850_IOPUADDRERR5] = 7, 681 [IRQ_DA850_IOPUPROTERR5] = 7, 682 [IRQ_DA850_MIOPU_BOOTCFG_ERR] = 7, 683 [IRQ_DA8XX_CHIPINT0] = 7, 684 [IRQ_DA8XX_CHIPINT1] = 7, 685 [IRQ_DA8XX_CHIPINT2] = 7, 686 [IRQ_DA8XX_CHIPINT3] = 7, 687 [IRQ_DA8XX_TCERRINT1] = 7, 688 [IRQ_DA8XX_C0_RX_THRESH_PULSE] = 7, 689 [IRQ_DA8XX_C0_RX_PULSE] = 7, 690 [IRQ_DA8XX_C0_TX_PULSE] = 7, 691 [IRQ_DA8XX_C0_MISC_PULSE] = 7, 692 [IRQ_DA8XX_C1_RX_THRESH_PULSE] = 7, 693 [IRQ_DA8XX_C1_RX_PULSE] = 7, 694 [IRQ_DA8XX_C1_TX_PULSE] = 7, 695 [IRQ_DA8XX_C1_MISC_PULSE] = 7, 696 [IRQ_DA8XX_MEMERR] = 7, 697 [IRQ_DA8XX_GPIO0] = 7, 698 [IRQ_DA8XX_GPIO1] = 7, 699 [IRQ_DA8XX_GPIO2] = 7, 700 [IRQ_DA8XX_GPIO3] = 7, 701 [IRQ_DA8XX_GPIO4] = 7, 702 [IRQ_DA8XX_GPIO5] = 7, 703 [IRQ_DA8XX_GPIO6] = 7, 704 [IRQ_DA8XX_GPIO7] = 7, 705 [IRQ_DA8XX_GPIO8] = 7, 706 [IRQ_DA8XX_I2CINT1] = 7, 707 [IRQ_DA8XX_LCDINT] = 7, 708 [IRQ_DA8XX_UARTINT1] = 7, 709 [IRQ_DA8XX_MCASPINT] = 7, 710 [IRQ_DA8XX_ALLINT1] = 7, 711 [IRQ_DA8XX_SPINT1] = 7, 712 [IRQ_DA8XX_UHPI_INT1] = 7, 713 [IRQ_DA8XX_USB_INT] = 7, 714 [IRQ_DA8XX_IRQN] = 7, 715 [IRQ_DA8XX_RWAKEUP] = 7, 716 [IRQ_DA8XX_UARTINT2] = 7, 717 [IRQ_DA8XX_DFTSSINT] = 7, 718 [IRQ_DA8XX_EHRPWM0] = 7, 719 [IRQ_DA8XX_EHRPWM0TZ] = 7, 720 [IRQ_DA8XX_EHRPWM1] = 7, 721 [IRQ_DA8XX_EHRPWM1TZ] = 7, 722 [IRQ_DA850_SATAINT] = 7, 723 [IRQ_DA850_TINT12_2] = 7, 724 [IRQ_DA850_TINT34_2] = 7, 725 [IRQ_DA850_TINTALL_2] = 7, 726 [IRQ_DA8XX_ECAP0] = 7, 727 [IRQ_DA8XX_ECAP1] = 7, 728 [IRQ_DA8XX_ECAP2] = 7, 729 [IRQ_DA850_MMCSDINT0_1] = 7, 730 [IRQ_DA850_MMCSDINT1_1] = 7, 731 [IRQ_DA850_T12CMPINT0_2] = 7, 732 [IRQ_DA850_T12CMPINT1_2] = 7, 733 [IRQ_DA850_T12CMPINT2_2] = 7, 734 [IRQ_DA850_T12CMPINT3_2] = 7, 735 [IRQ_DA850_T12CMPINT4_2] = 7, 736 [IRQ_DA850_T12CMPINT5_2] = 7, 737 [IRQ_DA850_T12CMPINT6_2] = 7, 738 [IRQ_DA850_T12CMPINT7_2] = 7, 739 [IRQ_DA850_T12CMPINT0_3] = 7, 740 [IRQ_DA850_T12CMPINT1_3] = 7, 741 [IRQ_DA850_T12CMPINT2_3] = 7, 742 [IRQ_DA850_T12CMPINT3_3] = 7, 743 [IRQ_DA850_T12CMPINT4_3] = 7, 744 [IRQ_DA850_T12CMPINT5_3] = 7, 745 [IRQ_DA850_T12CMPINT6_3] = 7, 746 [IRQ_DA850_T12CMPINT7_3] = 7, 747 [IRQ_DA850_RPIINT] = 7, 748 [IRQ_DA850_VPIFINT] = 7, 749 [IRQ_DA850_CCINT1] = 7, 750 [IRQ_DA850_CCERRINT1] = 7, 751 [IRQ_DA850_TCERRINT2] = 7, 752 [IRQ_DA850_TINT12_3] = 7, 753 [IRQ_DA850_TINT34_3] = 7, 754 [IRQ_DA850_TINTALL_3] = 7, 755 [IRQ_DA850_MCBSP0RINT] = 7, 756 [IRQ_DA850_MCBSP0XINT] = 7, 757 [IRQ_DA850_MCBSP1RINT] = 7, 758 [IRQ_DA850_MCBSP1XINT] = 7, 759 [IRQ_DA8XX_ARMCLKSTOPREQ] = 7, 760 }; 761 762 static struct map_desc da850_io_desc[] = { 763 { 764 .virtual = IO_VIRT, 765 .pfn = __phys_to_pfn(IO_PHYS), 766 .length = IO_SIZE, 767 .type = MT_DEVICE 768 }, 769 { 770 .virtual = DA8XX_CP_INTC_VIRT, 771 .pfn = __phys_to_pfn(DA8XX_CP_INTC_BASE), 772 .length = DA8XX_CP_INTC_SIZE, 773 .type = MT_DEVICE 774 }, 775 }; 776 777 static void __iomem *da850_psc_bases[] = { 778 IO_ADDRESS(DA8XX_PSC0_BASE), 779 IO_ADDRESS(DA8XX_PSC1_BASE), 780 }; 781 782 /* Contents of JTAG ID register used to identify exact cpu type */ 783 static struct davinci_id da850_ids[] = { 784 { 785 .variant = 0x0, 786 .part_no = 0xb7d1, 787 .manufacturer = 0x017, /* 0x02f >> 1 */ 788 .cpu_id = DAVINCI_CPU_ID_DA850, 789 .name = "da850/omap-l138", 790 }, 791 }; 792 793 static struct davinci_timer_instance da850_timer_instance[4] = { 794 { 795 .base = IO_ADDRESS(DA8XX_TIMER64P0_BASE), 796 .bottom_irq = IRQ_DA8XX_TINT12_0, 797 .top_irq = IRQ_DA8XX_TINT34_0, 798 }, 799 { 800 .base = IO_ADDRESS(DA8XX_TIMER64P1_BASE), 801 .bottom_irq = IRQ_DA8XX_TINT12_1, 802 .top_irq = IRQ_DA8XX_TINT34_1, 803 }, 804 { 805 .base = IO_ADDRESS(DA850_TIMER64P2_BASE), 806 .bottom_irq = IRQ_DA850_TINT12_2, 807 .top_irq = IRQ_DA850_TINT34_2, 808 }, 809 { 810 .base = IO_ADDRESS(DA850_TIMER64P3_BASE), 811 .bottom_irq = IRQ_DA850_TINT12_3, 812 .top_irq = IRQ_DA850_TINT34_3, 813 }, 814 }; 815 816 /* 817 * T0_BOT: Timer 0, bottom : Used for clock_event 818 * T0_TOP: Timer 0, top : Used for clocksource 819 * T1_BOT, T1_TOP: Timer 1, bottom & top: Used for watchdog timer 820 */ 821 static struct davinci_timer_info da850_timer_info = { 822 .timers = da850_timer_instance, 823 .clockevent_id = T0_BOT, 824 .clocksource_id = T0_TOP, 825 }; 826 827 static void da850_set_async3_src(int pllnum) 828 { 829 struct clk *clk, *newparent = pllnum ? &pll1_sysclk2 : &pll0_sysclk2; 830 struct davinci_clk *c; 831 unsigned int v; 832 int ret; 833 834 for (c = da850_clks; c->lk.clk; c++) { 835 clk = c->lk.clk; 836 if (clk->flags & DA850_CLK_ASYNC3) { 837 ret = clk_set_parent(clk, newparent); 838 WARN(ret, "DA850: unable to re-parent clock %s", 839 clk->name); 840 } 841 } 842 843 v = __raw_readl(DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP3_REG)); 844 if (pllnum) 845 v |= CFGCHIP3_ASYNC3_CLKSRC; 846 else 847 v &= ~CFGCHIP3_ASYNC3_CLKSRC; 848 __raw_writel(v, DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP3_REG)); 849 } 850 851 #ifdef CONFIG_CPU_FREQ 852 /* 853 * Notes: 854 * According to the TRM, minimum PLLM results in maximum power savings. 855 * The OPP definitions below should keep the PLLM as low as possible. 856 * 857 * The output of the PLLM must be between 400 to 600 MHz. 858 * This rules out prediv of anything but divide-by-one for 24Mhz OSC input. 859 */ 860 struct da850_opp { 861 unsigned int freq; /* in KHz */ 862 unsigned int prediv; 863 unsigned int mult; 864 unsigned int postdiv; 865 unsigned int cvdd_min; /* in uV */ 866 unsigned int cvdd_max; /* in uV */ 867 }; 868 869 static const struct da850_opp da850_opp_300 = { 870 .freq = 300000, 871 .prediv = 1, 872 .mult = 25, 873 .postdiv = 2, 874 .cvdd_min = 1140000, 875 .cvdd_max = 1320000, 876 }; 877 878 static const struct da850_opp da850_opp_200 = { 879 .freq = 200000, 880 .prediv = 1, 881 .mult = 25, 882 .postdiv = 3, 883 .cvdd_min = 1050000, 884 .cvdd_max = 1160000, 885 }; 886 887 static const struct da850_opp da850_opp_96 = { 888 .freq = 96000, 889 .prediv = 1, 890 .mult = 20, 891 .postdiv = 5, 892 .cvdd_min = 950000, 893 .cvdd_max = 1050000, 894 }; 895 896 #define OPP(freq) \ 897 { \ 898 .index = (unsigned int) &da850_opp_##freq, \ 899 .frequency = freq * 1000, \ 900 } 901 902 static struct cpufreq_frequency_table da850_freq_table[] = { 903 OPP(300), 904 OPP(200), 905 OPP(96), 906 { 907 .index = 0, 908 .frequency = CPUFREQ_TABLE_END, 909 }, 910 }; 911 912 static struct davinci_cpufreq_config cpufreq_info = { 913 .freq_table = &da850_freq_table[0], 914 }; 915 916 static struct platform_device da850_cpufreq_device = { 917 .name = "cpufreq-davinci", 918 .dev = { 919 .platform_data = &cpufreq_info, 920 }, 921 }; 922 923 int __init da850_register_cpufreq(void) 924 { 925 return platform_device_register(&da850_cpufreq_device); 926 } 927 928 static int da850_round_armrate(struct clk *clk, unsigned long rate) 929 { 930 int i, ret = 0, diff; 931 unsigned int best = (unsigned int) -1; 932 933 rate /= 1000; /* convert to kHz */ 934 935 for (i = 0; da850_freq_table[i].frequency != CPUFREQ_TABLE_END; i++) { 936 diff = da850_freq_table[i].frequency - rate; 937 if (diff < 0) 938 diff = -diff; 939 940 if (diff < best) { 941 best = diff; 942 ret = da850_freq_table[i].frequency; 943 } 944 } 945 946 return ret * 1000; 947 } 948 949 static int da850_set_armrate(struct clk *clk, unsigned long index) 950 { 951 struct clk *pllclk = &pll0_clk; 952 953 return clk_set_rate(pllclk, index); 954 } 955 956 static int da850_set_pll0rate(struct clk *clk, unsigned long index) 957 { 958 unsigned int prediv, mult, postdiv; 959 struct da850_opp *opp; 960 struct pll_data *pll = clk->pll_data; 961 unsigned int v; 962 int ret; 963 964 opp = (struct da850_opp *) da850_freq_table[index].index; 965 prediv = opp->prediv; 966 mult = opp->mult; 967 postdiv = opp->postdiv; 968 969 /* Unlock writing to PLL registers */ 970 v = __raw_readl(DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP0_REG)); 971 v &= ~CFGCHIP0_PLL_MASTER_LOCK; 972 __raw_writel(v, DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP0_REG)); 973 974 ret = davinci_set_pllrate(pll, prediv, mult, postdiv); 975 if (WARN_ON(ret)) 976 return ret; 977 978 return 0; 979 } 980 #else 981 int __init da850_register_cpufreq(void) 982 { 983 return 0; 984 } 985 986 static int da850_set_armrate(struct clk *clk, unsigned long rate) 987 { 988 return -EINVAL; 989 } 990 991 static int da850_set_pll0rate(struct clk *clk, unsigned long armrate) 992 { 993 return -EINVAL; 994 } 995 996 static int da850_round_armrate(struct clk *clk, unsigned long rate) 997 { 998 return clk->rate; 999 } 1000 #endif 1001 1002 #ifdef CONFIG_REGULATOR 1003 static struct regulator *cvdd; 1004 1005 static int da850_set_voltage(unsigned int index) 1006 { 1007 struct da850_opp *opp; 1008 1009 if (!cvdd) 1010 return -ENODEV; 1011 1012 opp = (struct da850_opp *) da850_freq_table[index].index; 1013 1014 return regulator_set_voltage(cvdd, opp->cvdd_min, opp->cvdd_max); 1015 } 1016 1017 static int __init da850_regulator_init(void) 1018 { 1019 int ret = 0; 1020 1021 cvdd = regulator_get(NULL, "cvdd"); 1022 if (WARN(IS_ERR(cvdd), "Unable to obtain voltage regulator for CVDD;" 1023 " voltage scaling unsupported\n")) { 1024 ret = PTR_ERR(cvdd); 1025 goto out; 1026 } 1027 1028 cpufreq_info.set_voltage = da850_set_voltage; 1029 1030 out: 1031 return ret; 1032 } 1033 device_initcall(da850_regulator_init); 1034 #endif 1035 1036 static struct davinci_soc_info davinci_soc_info_da850 = { 1037 .io_desc = da850_io_desc, 1038 .io_desc_num = ARRAY_SIZE(da850_io_desc), 1039 .ids = da850_ids, 1040 .ids_num = ARRAY_SIZE(da850_ids), 1041 .cpu_clks = da850_clks, 1042 .psc_bases = da850_psc_bases, 1043 .psc_bases_num = ARRAY_SIZE(da850_psc_bases), 1044 .pinmux_pins = da850_pins, 1045 .pinmux_pins_num = ARRAY_SIZE(da850_pins), 1046 .intc_base = (void __iomem *)DA8XX_CP_INTC_VIRT, 1047 .intc_type = DAVINCI_INTC_TYPE_CP_INTC, 1048 .intc_irq_prios = da850_default_priorities, 1049 .intc_irq_num = DA850_N_CP_INTC_IRQ, 1050 .timer_info = &da850_timer_info, 1051 .gpio_base = IO_ADDRESS(DA8XX_GPIO_BASE), 1052 .gpio_num = 144, 1053 .gpio_irq = IRQ_DA8XX_GPIO0, 1054 .serial_dev = &da8xx_serial_device, 1055 .emac_pdata = &da8xx_emac_pdata, 1056 }; 1057 1058 void __init da850_init(void) 1059 { 1060 da8xx_syscfg_base = ioremap(DA8XX_SYSCFG_BASE, SZ_4K); 1061 if (WARN(!da8xx_syscfg_base, "Unable to map syscfg module")) 1062 return; 1063 1064 davinci_soc_info_da850.jtag_id_base = 1065 DA8XX_SYSCFG_VIRT(DA8XX_JTAG_ID_REG); 1066 davinci_soc_info_da850.pinmux_base = DA8XX_SYSCFG_VIRT(0x120); 1067 1068 davinci_common_init(&davinci_soc_info_da850); 1069 1070 /* 1071 * Move the clock source of Async3 domain to PLL1 SYSCLK2. 1072 * This helps keeping the peripherals on this domain insulated 1073 * from CPU frequency changes caused by DVFS. The firmware sets 1074 * both PLL0 and PLL1 to the same frequency so, there should not 1075 * be any noticible change even in non-DVFS use cases. 1076 */ 1077 da850_set_async3_src(1); 1078 } 1079