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/init.h> 15 #include <linux/clk.h> 16 #include <linux/platform_device.h> 17 #include <linux/cpufreq.h> 18 #include <linux/regulator/consumer.h> 19 20 #include <asm/mach/map.h> 21 22 #include <mach/psc.h> 23 #include <mach/irqs.h> 24 #include <mach/cputype.h> 25 #include <mach/common.h> 26 #include <mach/time.h> 27 #include <mach/da8xx.h> 28 #include <mach/cpufreq.h> 29 #include <mach/pm.h> 30 #include <mach/gpio.h> 31 32 #include "clock.h" 33 #include "mux.h" 34 35 /* SoC specific clock flags */ 36 #define DA850_CLK_ASYNC3 BIT(16) 37 38 #define DA850_PLL1_BASE 0x01e1a000 39 #define DA850_TIMER64P2_BASE 0x01f0c000 40 #define DA850_TIMER64P3_BASE 0x01f0d000 41 42 #define DA850_REF_FREQ 24000000 43 44 #define CFGCHIP3_ASYNC3_CLKSRC BIT(4) 45 #define CFGCHIP3_PLL1_MASTER_LOCK BIT(5) 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 .set_rate = davinci_simple_set_rate, 62 }; 63 64 static struct clk pll0_clk = { 65 .name = "pll0", 66 .parent = &ref_clk, 67 .pll_data = &pll0_data, 68 .flags = CLK_PLL, 69 .set_rate = da850_set_pll0rate, 70 }; 71 72 static struct clk pll0_aux_clk = { 73 .name = "pll0_aux_clk", 74 .parent = &pll0_clk, 75 .flags = CLK_PLL | PRE_PLL, 76 }; 77 78 static struct clk pll0_sysclk2 = { 79 .name = "pll0_sysclk2", 80 .parent = &pll0_clk, 81 .flags = CLK_PLL, 82 .div_reg = PLLDIV2, 83 }; 84 85 static struct clk pll0_sysclk3 = { 86 .name = "pll0_sysclk3", 87 .parent = &pll0_clk, 88 .flags = CLK_PLL, 89 .div_reg = PLLDIV3, 90 .set_rate = davinci_set_sysclk_rate, 91 .maxrate = 100000000, 92 }; 93 94 static struct clk pll0_sysclk4 = { 95 .name = "pll0_sysclk4", 96 .parent = &pll0_clk, 97 .flags = CLK_PLL, 98 .div_reg = PLLDIV4, 99 }; 100 101 static struct clk pll0_sysclk5 = { 102 .name = "pll0_sysclk5", 103 .parent = &pll0_clk, 104 .flags = CLK_PLL, 105 .div_reg = PLLDIV5, 106 }; 107 108 static struct clk pll0_sysclk6 = { 109 .name = "pll0_sysclk6", 110 .parent = &pll0_clk, 111 .flags = CLK_PLL, 112 .div_reg = PLLDIV6, 113 }; 114 115 static struct clk pll0_sysclk7 = { 116 .name = "pll0_sysclk7", 117 .parent = &pll0_clk, 118 .flags = CLK_PLL, 119 .div_reg = PLLDIV7, 120 }; 121 122 static struct pll_data pll1_data = { 123 .num = 2, 124 .phys_base = DA850_PLL1_BASE, 125 .flags = PLL_HAS_POSTDIV, 126 }; 127 128 static struct clk pll1_clk = { 129 .name = "pll1", 130 .parent = &ref_clk, 131 .pll_data = &pll1_data, 132 .flags = CLK_PLL, 133 }; 134 135 static struct clk pll1_aux_clk = { 136 .name = "pll1_aux_clk", 137 .parent = &pll1_clk, 138 .flags = CLK_PLL | PRE_PLL, 139 }; 140 141 static struct clk pll1_sysclk2 = { 142 .name = "pll1_sysclk2", 143 .parent = &pll1_clk, 144 .flags = CLK_PLL, 145 .div_reg = PLLDIV2, 146 }; 147 148 static struct clk pll1_sysclk3 = { 149 .name = "pll1_sysclk3", 150 .parent = &pll1_clk, 151 .flags = CLK_PLL, 152 .div_reg = PLLDIV3, 153 }; 154 155 static struct clk pll1_sysclk4 = { 156 .name = "pll1_sysclk4", 157 .parent = &pll1_clk, 158 .flags = CLK_PLL, 159 .div_reg = PLLDIV4, 160 }; 161 162 static struct clk pll1_sysclk5 = { 163 .name = "pll1_sysclk5", 164 .parent = &pll1_clk, 165 .flags = CLK_PLL, 166 .div_reg = PLLDIV5, 167 }; 168 169 static struct clk pll1_sysclk6 = { 170 .name = "pll0_sysclk6", 171 .parent = &pll0_clk, 172 .flags = CLK_PLL, 173 .div_reg = PLLDIV6, 174 }; 175 176 static struct clk pll1_sysclk7 = { 177 .name = "pll1_sysclk7", 178 .parent = &pll1_clk, 179 .flags = CLK_PLL, 180 .div_reg = PLLDIV7, 181 }; 182 183 static struct clk i2c0_clk = { 184 .name = "i2c0", 185 .parent = &pll0_aux_clk, 186 }; 187 188 static struct clk timerp64_0_clk = { 189 .name = "timer0", 190 .parent = &pll0_aux_clk, 191 }; 192 193 static struct clk timerp64_1_clk = { 194 .name = "timer1", 195 .parent = &pll0_aux_clk, 196 }; 197 198 static struct clk arm_rom_clk = { 199 .name = "arm_rom", 200 .parent = &pll0_sysclk2, 201 .lpsc = DA8XX_LPSC0_ARM_RAM_ROM, 202 .flags = ALWAYS_ENABLED, 203 }; 204 205 static struct clk tpcc0_clk = { 206 .name = "tpcc0", 207 .parent = &pll0_sysclk2, 208 .lpsc = DA8XX_LPSC0_TPCC, 209 .flags = ALWAYS_ENABLED | CLK_PSC, 210 }; 211 212 static struct clk tptc0_clk = { 213 .name = "tptc0", 214 .parent = &pll0_sysclk2, 215 .lpsc = DA8XX_LPSC0_TPTC0, 216 .flags = ALWAYS_ENABLED, 217 }; 218 219 static struct clk tptc1_clk = { 220 .name = "tptc1", 221 .parent = &pll0_sysclk2, 222 .lpsc = DA8XX_LPSC0_TPTC1, 223 .flags = ALWAYS_ENABLED, 224 }; 225 226 static struct clk tpcc1_clk = { 227 .name = "tpcc1", 228 .parent = &pll0_sysclk2, 229 .lpsc = DA850_LPSC1_TPCC1, 230 .gpsc = 1, 231 .flags = CLK_PSC | ALWAYS_ENABLED, 232 }; 233 234 static struct clk tptc2_clk = { 235 .name = "tptc2", 236 .parent = &pll0_sysclk2, 237 .lpsc = DA850_LPSC1_TPTC2, 238 .gpsc = 1, 239 .flags = ALWAYS_ENABLED, 240 }; 241 242 static struct clk uart0_clk = { 243 .name = "uart0", 244 .parent = &pll0_sysclk2, 245 .lpsc = DA8XX_LPSC0_UART0, 246 }; 247 248 static struct clk uart1_clk = { 249 .name = "uart1", 250 .parent = &pll0_sysclk2, 251 .lpsc = DA8XX_LPSC1_UART1, 252 .gpsc = 1, 253 .flags = DA850_CLK_ASYNC3, 254 }; 255 256 static struct clk uart2_clk = { 257 .name = "uart2", 258 .parent = &pll0_sysclk2, 259 .lpsc = DA8XX_LPSC1_UART2, 260 .gpsc = 1, 261 .flags = DA850_CLK_ASYNC3, 262 }; 263 264 static struct clk aintc_clk = { 265 .name = "aintc", 266 .parent = &pll0_sysclk4, 267 .lpsc = DA8XX_LPSC0_AINTC, 268 .flags = ALWAYS_ENABLED, 269 }; 270 271 static struct clk gpio_clk = { 272 .name = "gpio", 273 .parent = &pll0_sysclk4, 274 .lpsc = DA8XX_LPSC1_GPIO, 275 .gpsc = 1, 276 }; 277 278 static struct clk i2c1_clk = { 279 .name = "i2c1", 280 .parent = &pll0_sysclk4, 281 .lpsc = DA8XX_LPSC1_I2C, 282 .gpsc = 1, 283 }; 284 285 static struct clk emif3_clk = { 286 .name = "emif3", 287 .parent = &pll0_sysclk5, 288 .lpsc = DA8XX_LPSC1_EMIF3C, 289 .gpsc = 1, 290 .flags = ALWAYS_ENABLED, 291 }; 292 293 static struct clk arm_clk = { 294 .name = "arm", 295 .parent = &pll0_sysclk6, 296 .lpsc = DA8XX_LPSC0_ARM, 297 .flags = ALWAYS_ENABLED, 298 .set_rate = da850_set_armrate, 299 .round_rate = da850_round_armrate, 300 }; 301 302 static struct clk rmii_clk = { 303 .name = "rmii", 304 .parent = &pll0_sysclk7, 305 }; 306 307 static struct clk emac_clk = { 308 .name = "emac", 309 .parent = &pll0_sysclk4, 310 .lpsc = DA8XX_LPSC1_CPGMAC, 311 .gpsc = 1, 312 }; 313 314 static struct clk mcasp_clk = { 315 .name = "mcasp", 316 .parent = &pll0_sysclk2, 317 .lpsc = DA8XX_LPSC1_McASP0, 318 .gpsc = 1, 319 .flags = DA850_CLK_ASYNC3, 320 }; 321 322 static struct clk lcdc_clk = { 323 .name = "lcdc", 324 .parent = &pll0_sysclk2, 325 .lpsc = DA8XX_LPSC1_LCDC, 326 .gpsc = 1, 327 }; 328 329 static struct clk mmcsd0_clk = { 330 .name = "mmcsd0", 331 .parent = &pll0_sysclk2, 332 .lpsc = DA8XX_LPSC0_MMC_SD, 333 }; 334 335 static struct clk mmcsd1_clk = { 336 .name = "mmcsd1", 337 .parent = &pll0_sysclk2, 338 .lpsc = DA850_LPSC1_MMC_SD1, 339 .gpsc = 1, 340 }; 341 342 static struct clk aemif_clk = { 343 .name = "aemif", 344 .parent = &pll0_sysclk3, 345 .lpsc = DA8XX_LPSC0_EMIF25, 346 .flags = ALWAYS_ENABLED, 347 }; 348 349 static struct clk usb11_clk = { 350 .name = "usb11", 351 .parent = &pll0_sysclk4, 352 .lpsc = DA8XX_LPSC1_USB11, 353 .gpsc = 1, 354 }; 355 356 static struct clk usb20_clk = { 357 .name = "usb20", 358 .parent = &pll0_sysclk2, 359 .lpsc = DA8XX_LPSC1_USB20, 360 .gpsc = 1, 361 }; 362 363 static struct clk spi0_clk = { 364 .name = "spi0", 365 .parent = &pll0_sysclk2, 366 .lpsc = DA8XX_LPSC0_SPI0, 367 }; 368 369 static struct clk spi1_clk = { 370 .name = "spi1", 371 .parent = &pll0_sysclk2, 372 .lpsc = DA8XX_LPSC1_SPI1, 373 .gpsc = 1, 374 .flags = DA850_CLK_ASYNC3, 375 }; 376 377 static struct clk sata_clk = { 378 .name = "sata", 379 .parent = &pll0_sysclk2, 380 .lpsc = DA850_LPSC1_SATA, 381 .gpsc = 1, 382 .flags = PSC_FORCE, 383 }; 384 385 static struct clk_lookup da850_clks[] = { 386 CLK(NULL, "ref", &ref_clk), 387 CLK(NULL, "pll0", &pll0_clk), 388 CLK(NULL, "pll0_aux", &pll0_aux_clk), 389 CLK(NULL, "pll0_sysclk2", &pll0_sysclk2), 390 CLK(NULL, "pll0_sysclk3", &pll0_sysclk3), 391 CLK(NULL, "pll0_sysclk4", &pll0_sysclk4), 392 CLK(NULL, "pll0_sysclk5", &pll0_sysclk5), 393 CLK(NULL, "pll0_sysclk6", &pll0_sysclk6), 394 CLK(NULL, "pll0_sysclk7", &pll0_sysclk7), 395 CLK(NULL, "pll1", &pll1_clk), 396 CLK(NULL, "pll1_aux", &pll1_aux_clk), 397 CLK(NULL, "pll1_sysclk2", &pll1_sysclk2), 398 CLK(NULL, "pll1_sysclk3", &pll1_sysclk3), 399 CLK(NULL, "pll1_sysclk4", &pll1_sysclk4), 400 CLK(NULL, "pll1_sysclk5", &pll1_sysclk5), 401 CLK(NULL, "pll1_sysclk6", &pll1_sysclk6), 402 CLK(NULL, "pll1_sysclk7", &pll1_sysclk7), 403 CLK("i2c_davinci.1", NULL, &i2c0_clk), 404 CLK(NULL, "timer0", &timerp64_0_clk), 405 CLK("watchdog", NULL, &timerp64_1_clk), 406 CLK(NULL, "arm_rom", &arm_rom_clk), 407 CLK(NULL, "tpcc0", &tpcc0_clk), 408 CLK(NULL, "tptc0", &tptc0_clk), 409 CLK(NULL, "tptc1", &tptc1_clk), 410 CLK(NULL, "tpcc1", &tpcc1_clk), 411 CLK(NULL, "tptc2", &tptc2_clk), 412 CLK(NULL, "uart0", &uart0_clk), 413 CLK(NULL, "uart1", &uart1_clk), 414 CLK(NULL, "uart2", &uart2_clk), 415 CLK(NULL, "aintc", &aintc_clk), 416 CLK(NULL, "gpio", &gpio_clk), 417 CLK("i2c_davinci.2", NULL, &i2c1_clk), 418 CLK(NULL, "emif3", &emif3_clk), 419 CLK(NULL, "arm", &arm_clk), 420 CLK(NULL, "rmii", &rmii_clk), 421 CLK("davinci_emac.1", NULL, &emac_clk), 422 CLK("davinci-mcasp.0", NULL, &mcasp_clk), 423 CLK("da8xx_lcdc.0", NULL, &lcdc_clk), 424 CLK("davinci_mmc.0", NULL, &mmcsd0_clk), 425 CLK("davinci_mmc.1", NULL, &mmcsd1_clk), 426 CLK(NULL, "aemif", &aemif_clk), 427 CLK(NULL, "usb11", &usb11_clk), 428 CLK(NULL, "usb20", &usb20_clk), 429 CLK("spi_davinci.0", NULL, &spi0_clk), 430 CLK("spi_davinci.1", NULL, &spi1_clk), 431 CLK("ahci", NULL, &sata_clk), 432 CLK(NULL, NULL, NULL), 433 }; 434 435 /* 436 * Device specific mux setup 437 * 438 * soc description mux mode mode mux dbg 439 * reg offset mask mode 440 */ 441 static const struct mux_config da850_pins[] = { 442 #ifdef CONFIG_DAVINCI_MUX 443 /* UART0 function */ 444 MUX_CFG(DA850, NUART0_CTS, 3, 24, 15, 2, false) 445 MUX_CFG(DA850, NUART0_RTS, 3, 28, 15, 2, false) 446 MUX_CFG(DA850, UART0_RXD, 3, 16, 15, 2, false) 447 MUX_CFG(DA850, UART0_TXD, 3, 20, 15, 2, false) 448 /* UART1 function */ 449 MUX_CFG(DA850, UART1_RXD, 4, 24, 15, 2, false) 450 MUX_CFG(DA850, UART1_TXD, 4, 28, 15, 2, false) 451 /* UART2 function */ 452 MUX_CFG(DA850, UART2_RXD, 4, 16, 15, 2, false) 453 MUX_CFG(DA850, UART2_TXD, 4, 20, 15, 2, false) 454 /* I2C1 function */ 455 MUX_CFG(DA850, I2C1_SCL, 4, 16, 15, 4, false) 456 MUX_CFG(DA850, I2C1_SDA, 4, 20, 15, 4, false) 457 /* I2C0 function */ 458 MUX_CFG(DA850, I2C0_SDA, 4, 12, 15, 2, false) 459 MUX_CFG(DA850, I2C0_SCL, 4, 8, 15, 2, false) 460 /* EMAC function */ 461 MUX_CFG(DA850, MII_TXEN, 2, 4, 15, 8, false) 462 MUX_CFG(DA850, MII_TXCLK, 2, 8, 15, 8, false) 463 MUX_CFG(DA850, MII_COL, 2, 12, 15, 8, false) 464 MUX_CFG(DA850, MII_TXD_3, 2, 16, 15, 8, false) 465 MUX_CFG(DA850, MII_TXD_2, 2, 20, 15, 8, false) 466 MUX_CFG(DA850, MII_TXD_1, 2, 24, 15, 8, false) 467 MUX_CFG(DA850, MII_TXD_0, 2, 28, 15, 8, false) 468 MUX_CFG(DA850, MII_RXCLK, 3, 0, 15, 8, false) 469 MUX_CFG(DA850, MII_RXDV, 3, 4, 15, 8, false) 470 MUX_CFG(DA850, MII_RXER, 3, 8, 15, 8, false) 471 MUX_CFG(DA850, MII_CRS, 3, 12, 15, 8, false) 472 MUX_CFG(DA850, MII_RXD_3, 3, 16, 15, 8, false) 473 MUX_CFG(DA850, MII_RXD_2, 3, 20, 15, 8, false) 474 MUX_CFG(DA850, MII_RXD_1, 3, 24, 15, 8, false) 475 MUX_CFG(DA850, MII_RXD_0, 3, 28, 15, 8, false) 476 MUX_CFG(DA850, MDIO_CLK, 4, 0, 15, 8, false) 477 MUX_CFG(DA850, MDIO_D, 4, 4, 15, 8, false) 478 MUX_CFG(DA850, RMII_TXD_0, 14, 12, 15, 8, false) 479 MUX_CFG(DA850, RMII_TXD_1, 14, 8, 15, 8, false) 480 MUX_CFG(DA850, RMII_TXEN, 14, 16, 15, 8, false) 481 MUX_CFG(DA850, RMII_CRS_DV, 15, 4, 15, 8, false) 482 MUX_CFG(DA850, RMII_RXD_0, 14, 24, 15, 8, false) 483 MUX_CFG(DA850, RMII_RXD_1, 14, 20, 15, 8, false) 484 MUX_CFG(DA850, RMII_RXER, 14, 28, 15, 8, false) 485 MUX_CFG(DA850, RMII_MHZ_50_CLK, 15, 0, 15, 0, false) 486 /* McASP function */ 487 MUX_CFG(DA850, ACLKR, 0, 0, 15, 1, false) 488 MUX_CFG(DA850, ACLKX, 0, 4, 15, 1, false) 489 MUX_CFG(DA850, AFSR, 0, 8, 15, 1, false) 490 MUX_CFG(DA850, AFSX, 0, 12, 15, 1, false) 491 MUX_CFG(DA850, AHCLKR, 0, 16, 15, 1, false) 492 MUX_CFG(DA850, AHCLKX, 0, 20, 15, 1, false) 493 MUX_CFG(DA850, AMUTE, 0, 24, 15, 1, false) 494 MUX_CFG(DA850, AXR_15, 1, 0, 15, 1, false) 495 MUX_CFG(DA850, AXR_14, 1, 4, 15, 1, false) 496 MUX_CFG(DA850, AXR_13, 1, 8, 15, 1, false) 497 MUX_CFG(DA850, AXR_12, 1, 12, 15, 1, false) 498 MUX_CFG(DA850, AXR_11, 1, 16, 15, 1, false) 499 MUX_CFG(DA850, AXR_10, 1, 20, 15, 1, false) 500 MUX_CFG(DA850, AXR_9, 1, 24, 15, 1, false) 501 MUX_CFG(DA850, AXR_8, 1, 28, 15, 1, false) 502 MUX_CFG(DA850, AXR_7, 2, 0, 15, 1, false) 503 MUX_CFG(DA850, AXR_6, 2, 4, 15, 1, false) 504 MUX_CFG(DA850, AXR_5, 2, 8, 15, 1, false) 505 MUX_CFG(DA850, AXR_4, 2, 12, 15, 1, false) 506 MUX_CFG(DA850, AXR_3, 2, 16, 15, 1, false) 507 MUX_CFG(DA850, AXR_2, 2, 20, 15, 1, false) 508 MUX_CFG(DA850, AXR_1, 2, 24, 15, 1, false) 509 MUX_CFG(DA850, AXR_0, 2, 28, 15, 1, false) 510 /* LCD function */ 511 MUX_CFG(DA850, LCD_D_7, 16, 8, 15, 2, false) 512 MUX_CFG(DA850, LCD_D_6, 16, 12, 15, 2, false) 513 MUX_CFG(DA850, LCD_D_5, 16, 16, 15, 2, false) 514 MUX_CFG(DA850, LCD_D_4, 16, 20, 15, 2, false) 515 MUX_CFG(DA850, LCD_D_3, 16, 24, 15, 2, false) 516 MUX_CFG(DA850, LCD_D_2, 16, 28, 15, 2, false) 517 MUX_CFG(DA850, LCD_D_1, 17, 0, 15, 2, false) 518 MUX_CFG(DA850, LCD_D_0, 17, 4, 15, 2, false) 519 MUX_CFG(DA850, LCD_D_15, 17, 8, 15, 2, false) 520 MUX_CFG(DA850, LCD_D_14, 17, 12, 15, 2, false) 521 MUX_CFG(DA850, LCD_D_13, 17, 16, 15, 2, false) 522 MUX_CFG(DA850, LCD_D_12, 17, 20, 15, 2, false) 523 MUX_CFG(DA850, LCD_D_11, 17, 24, 15, 2, false) 524 MUX_CFG(DA850, LCD_D_10, 17, 28, 15, 2, false) 525 MUX_CFG(DA850, LCD_D_9, 18, 0, 15, 2, false) 526 MUX_CFG(DA850, LCD_D_8, 18, 4, 15, 2, false) 527 MUX_CFG(DA850, LCD_PCLK, 18, 24, 15, 2, false) 528 MUX_CFG(DA850, LCD_HSYNC, 19, 0, 15, 2, false) 529 MUX_CFG(DA850, LCD_VSYNC, 19, 4, 15, 2, false) 530 MUX_CFG(DA850, NLCD_AC_ENB_CS, 19, 24, 15, 2, false) 531 /* MMC/SD0 function */ 532 MUX_CFG(DA850, MMCSD0_DAT_0, 10, 8, 15, 2, false) 533 MUX_CFG(DA850, MMCSD0_DAT_1, 10, 12, 15, 2, false) 534 MUX_CFG(DA850, MMCSD0_DAT_2, 10, 16, 15, 2, false) 535 MUX_CFG(DA850, MMCSD0_DAT_3, 10, 20, 15, 2, false) 536 MUX_CFG(DA850, MMCSD0_CLK, 10, 0, 15, 2, false) 537 MUX_CFG(DA850, MMCSD0_CMD, 10, 4, 15, 2, false) 538 /* MMC/SD1 function */ 539 MUX_CFG(DA850, MMCSD1_DAT_0, 18, 8, 15, 2, false) 540 MUX_CFG(DA850, MMCSD1_DAT_1, 19, 16, 15, 2, false) 541 MUX_CFG(DA850, MMCSD1_DAT_2, 19, 12, 15, 2, false) 542 MUX_CFG(DA850, MMCSD1_DAT_3, 19, 8, 15, 2, false) 543 MUX_CFG(DA850, MMCSD1_CLK, 18, 12, 15, 2, false) 544 MUX_CFG(DA850, MMCSD1_CMD, 18, 16, 15, 2, false) 545 /* EMIF2.5/EMIFA function */ 546 MUX_CFG(DA850, EMA_D_7, 9, 0, 15, 1, false) 547 MUX_CFG(DA850, EMA_D_6, 9, 4, 15, 1, false) 548 MUX_CFG(DA850, EMA_D_5, 9, 8, 15, 1, false) 549 MUX_CFG(DA850, EMA_D_4, 9, 12, 15, 1, false) 550 MUX_CFG(DA850, EMA_D_3, 9, 16, 15, 1, false) 551 MUX_CFG(DA850, EMA_D_2, 9, 20, 15, 1, false) 552 MUX_CFG(DA850, EMA_D_1, 9, 24, 15, 1, false) 553 MUX_CFG(DA850, EMA_D_0, 9, 28, 15, 1, false) 554 MUX_CFG(DA850, EMA_A_1, 12, 24, 15, 1, false) 555 MUX_CFG(DA850, EMA_A_2, 12, 20, 15, 1, false) 556 MUX_CFG(DA850, NEMA_CS_3, 7, 4, 15, 1, false) 557 MUX_CFG(DA850, NEMA_CS_4, 7, 8, 15, 1, false) 558 MUX_CFG(DA850, NEMA_WE, 7, 16, 15, 1, false) 559 MUX_CFG(DA850, NEMA_OE, 7, 20, 15, 1, false) 560 MUX_CFG(DA850, EMA_A_0, 12, 28, 15, 1, false) 561 MUX_CFG(DA850, EMA_A_3, 12, 16, 15, 1, false) 562 MUX_CFG(DA850, EMA_A_4, 12, 12, 15, 1, false) 563 MUX_CFG(DA850, EMA_A_5, 12, 8, 15, 1, false) 564 MUX_CFG(DA850, EMA_A_6, 12, 4, 15, 1, false) 565 MUX_CFG(DA850, EMA_A_7, 12, 0, 15, 1, false) 566 MUX_CFG(DA850, EMA_A_8, 11, 28, 15, 1, false) 567 MUX_CFG(DA850, EMA_A_9, 11, 24, 15, 1, false) 568 MUX_CFG(DA850, EMA_A_10, 11, 20, 15, 1, false) 569 MUX_CFG(DA850, EMA_A_11, 11, 16, 15, 1, false) 570 MUX_CFG(DA850, EMA_A_12, 11, 12, 15, 1, false) 571 MUX_CFG(DA850, EMA_A_13, 11, 8, 15, 1, false) 572 MUX_CFG(DA850, EMA_A_14, 11, 4, 15, 1, false) 573 MUX_CFG(DA850, EMA_A_15, 11, 0, 15, 1, false) 574 MUX_CFG(DA850, EMA_A_16, 10, 28, 15, 1, false) 575 MUX_CFG(DA850, EMA_A_17, 10, 24, 15, 1, false) 576 MUX_CFG(DA850, EMA_A_18, 10, 20, 15, 1, false) 577 MUX_CFG(DA850, EMA_A_19, 10, 16, 15, 1, false) 578 MUX_CFG(DA850, EMA_A_20, 10, 12, 15, 1, false) 579 MUX_CFG(DA850, EMA_A_21, 10, 8, 15, 1, false) 580 MUX_CFG(DA850, EMA_A_22, 10, 4, 15, 1, false) 581 MUX_CFG(DA850, EMA_A_23, 10, 0, 15, 1, false) 582 MUX_CFG(DA850, EMA_D_8, 8, 28, 15, 1, false) 583 MUX_CFG(DA850, EMA_D_9, 8, 24, 15, 1, false) 584 MUX_CFG(DA850, EMA_D_10, 8, 20, 15, 1, false) 585 MUX_CFG(DA850, EMA_D_11, 8, 16, 15, 1, false) 586 MUX_CFG(DA850, EMA_D_12, 8, 12, 15, 1, false) 587 MUX_CFG(DA850, EMA_D_13, 8, 8, 15, 1, false) 588 MUX_CFG(DA850, EMA_D_14, 8, 4, 15, 1, false) 589 MUX_CFG(DA850, EMA_D_15, 8, 0, 15, 1, false) 590 MUX_CFG(DA850, EMA_BA_1, 5, 24, 15, 1, false) 591 MUX_CFG(DA850, EMA_CLK, 6, 0, 15, 1, false) 592 MUX_CFG(DA850, EMA_WAIT_1, 6, 24, 15, 1, false) 593 MUX_CFG(DA850, NEMA_CS_2, 7, 0, 15, 1, false) 594 /* GPIO function */ 595 MUX_CFG(DA850, GPIO2_4, 6, 12, 15, 8, false) 596 MUX_CFG(DA850, GPIO2_6, 6, 4, 15, 8, false) 597 MUX_CFG(DA850, GPIO2_8, 5, 28, 15, 8, false) 598 MUX_CFG(DA850, GPIO2_15, 5, 0, 15, 8, false) 599 MUX_CFG(DA850, GPIO3_12, 7, 12, 15, 8, false) 600 MUX_CFG(DA850, GPIO3_13, 7, 8, 15, 8, false) 601 MUX_CFG(DA850, GPIO4_0, 10, 28, 15, 8, false) 602 MUX_CFG(DA850, GPIO4_1, 10, 24, 15, 8, false) 603 MUX_CFG(DA850, GPIO6_9, 13, 24, 15, 8, false) 604 MUX_CFG(DA850, GPIO6_10, 13, 20, 15, 8, false) 605 MUX_CFG(DA850, GPIO6_13, 13, 8, 15, 8, false) 606 MUX_CFG(DA850, RTC_ALARM, 0, 28, 15, 2, false) 607 #endif 608 }; 609 610 const short da850_i2c0_pins[] __initdata = { 611 DA850_I2C0_SDA, DA850_I2C0_SCL, 612 -1 613 }; 614 615 const short da850_i2c1_pins[] __initdata = { 616 DA850_I2C1_SCL, DA850_I2C1_SDA, 617 -1 618 }; 619 620 const short da850_lcdcntl_pins[] __initdata = { 621 DA850_LCD_D_0, DA850_LCD_D_1, DA850_LCD_D_2, DA850_LCD_D_3, 622 DA850_LCD_D_4, DA850_LCD_D_5, DA850_LCD_D_6, DA850_LCD_D_7, 623 DA850_LCD_D_8, DA850_LCD_D_9, DA850_LCD_D_10, DA850_LCD_D_11, 624 DA850_LCD_D_12, DA850_LCD_D_13, DA850_LCD_D_14, DA850_LCD_D_15, 625 DA850_LCD_PCLK, DA850_LCD_HSYNC, DA850_LCD_VSYNC, DA850_NLCD_AC_ENB_CS, 626 -1 627 }; 628 629 /* FIQ are pri 0-1; otherwise 2-7, with 7 lowest priority */ 630 static u8 da850_default_priorities[DA850_N_CP_INTC_IRQ] = { 631 [IRQ_DA8XX_COMMTX] = 7, 632 [IRQ_DA8XX_COMMRX] = 7, 633 [IRQ_DA8XX_NINT] = 7, 634 [IRQ_DA8XX_EVTOUT0] = 7, 635 [IRQ_DA8XX_EVTOUT1] = 7, 636 [IRQ_DA8XX_EVTOUT2] = 7, 637 [IRQ_DA8XX_EVTOUT3] = 7, 638 [IRQ_DA8XX_EVTOUT4] = 7, 639 [IRQ_DA8XX_EVTOUT5] = 7, 640 [IRQ_DA8XX_EVTOUT6] = 7, 641 [IRQ_DA8XX_EVTOUT7] = 7, 642 [IRQ_DA8XX_CCINT0] = 7, 643 [IRQ_DA8XX_CCERRINT] = 7, 644 [IRQ_DA8XX_TCERRINT0] = 7, 645 [IRQ_DA8XX_AEMIFINT] = 7, 646 [IRQ_DA8XX_I2CINT0] = 7, 647 [IRQ_DA8XX_MMCSDINT0] = 7, 648 [IRQ_DA8XX_MMCSDINT1] = 7, 649 [IRQ_DA8XX_ALLINT0] = 7, 650 [IRQ_DA8XX_RTC] = 7, 651 [IRQ_DA8XX_SPINT0] = 7, 652 [IRQ_DA8XX_TINT12_0] = 7, 653 [IRQ_DA8XX_TINT34_0] = 7, 654 [IRQ_DA8XX_TINT12_1] = 7, 655 [IRQ_DA8XX_TINT34_1] = 7, 656 [IRQ_DA8XX_UARTINT0] = 7, 657 [IRQ_DA8XX_KEYMGRINT] = 7, 658 [IRQ_DA850_MPUADDRERR0] = 7, 659 [IRQ_DA8XX_CHIPINT0] = 7, 660 [IRQ_DA8XX_CHIPINT1] = 7, 661 [IRQ_DA8XX_CHIPINT2] = 7, 662 [IRQ_DA8XX_CHIPINT3] = 7, 663 [IRQ_DA8XX_TCERRINT1] = 7, 664 [IRQ_DA8XX_C0_RX_THRESH_PULSE] = 7, 665 [IRQ_DA8XX_C0_RX_PULSE] = 7, 666 [IRQ_DA8XX_C0_TX_PULSE] = 7, 667 [IRQ_DA8XX_C0_MISC_PULSE] = 7, 668 [IRQ_DA8XX_C1_RX_THRESH_PULSE] = 7, 669 [IRQ_DA8XX_C1_RX_PULSE] = 7, 670 [IRQ_DA8XX_C1_TX_PULSE] = 7, 671 [IRQ_DA8XX_C1_MISC_PULSE] = 7, 672 [IRQ_DA8XX_MEMERR] = 7, 673 [IRQ_DA8XX_GPIO0] = 7, 674 [IRQ_DA8XX_GPIO1] = 7, 675 [IRQ_DA8XX_GPIO2] = 7, 676 [IRQ_DA8XX_GPIO3] = 7, 677 [IRQ_DA8XX_GPIO4] = 7, 678 [IRQ_DA8XX_GPIO5] = 7, 679 [IRQ_DA8XX_GPIO6] = 7, 680 [IRQ_DA8XX_GPIO7] = 7, 681 [IRQ_DA8XX_GPIO8] = 7, 682 [IRQ_DA8XX_I2CINT1] = 7, 683 [IRQ_DA8XX_LCDINT] = 7, 684 [IRQ_DA8XX_UARTINT1] = 7, 685 [IRQ_DA8XX_MCASPINT] = 7, 686 [IRQ_DA8XX_ALLINT1] = 7, 687 [IRQ_DA8XX_SPINT1] = 7, 688 [IRQ_DA8XX_UHPI_INT1] = 7, 689 [IRQ_DA8XX_USB_INT] = 7, 690 [IRQ_DA8XX_IRQN] = 7, 691 [IRQ_DA8XX_RWAKEUP] = 7, 692 [IRQ_DA8XX_UARTINT2] = 7, 693 [IRQ_DA8XX_DFTSSINT] = 7, 694 [IRQ_DA8XX_EHRPWM0] = 7, 695 [IRQ_DA8XX_EHRPWM0TZ] = 7, 696 [IRQ_DA8XX_EHRPWM1] = 7, 697 [IRQ_DA8XX_EHRPWM1TZ] = 7, 698 [IRQ_DA850_SATAINT] = 7, 699 [IRQ_DA850_TINTALL_2] = 7, 700 [IRQ_DA8XX_ECAP0] = 7, 701 [IRQ_DA8XX_ECAP1] = 7, 702 [IRQ_DA8XX_ECAP2] = 7, 703 [IRQ_DA850_MMCSDINT0_1] = 7, 704 [IRQ_DA850_MMCSDINT1_1] = 7, 705 [IRQ_DA850_T12CMPINT0_2] = 7, 706 [IRQ_DA850_T12CMPINT1_2] = 7, 707 [IRQ_DA850_T12CMPINT2_2] = 7, 708 [IRQ_DA850_T12CMPINT3_2] = 7, 709 [IRQ_DA850_T12CMPINT4_2] = 7, 710 [IRQ_DA850_T12CMPINT5_2] = 7, 711 [IRQ_DA850_T12CMPINT6_2] = 7, 712 [IRQ_DA850_T12CMPINT7_2] = 7, 713 [IRQ_DA850_T12CMPINT0_3] = 7, 714 [IRQ_DA850_T12CMPINT1_3] = 7, 715 [IRQ_DA850_T12CMPINT2_3] = 7, 716 [IRQ_DA850_T12CMPINT3_3] = 7, 717 [IRQ_DA850_T12CMPINT4_3] = 7, 718 [IRQ_DA850_T12CMPINT5_3] = 7, 719 [IRQ_DA850_T12CMPINT6_3] = 7, 720 [IRQ_DA850_T12CMPINT7_3] = 7, 721 [IRQ_DA850_RPIINT] = 7, 722 [IRQ_DA850_VPIFINT] = 7, 723 [IRQ_DA850_CCINT1] = 7, 724 [IRQ_DA850_CCERRINT1] = 7, 725 [IRQ_DA850_TCERRINT2] = 7, 726 [IRQ_DA850_TINTALL_3] = 7, 727 [IRQ_DA850_MCBSP0RINT] = 7, 728 [IRQ_DA850_MCBSP0XINT] = 7, 729 [IRQ_DA850_MCBSP1RINT] = 7, 730 [IRQ_DA850_MCBSP1XINT] = 7, 731 [IRQ_DA8XX_ARMCLKSTOPREQ] = 7, 732 }; 733 734 static struct map_desc da850_io_desc[] = { 735 { 736 .virtual = IO_VIRT, 737 .pfn = __phys_to_pfn(IO_PHYS), 738 .length = IO_SIZE, 739 .type = MT_DEVICE 740 }, 741 { 742 .virtual = DA8XX_CP_INTC_VIRT, 743 .pfn = __phys_to_pfn(DA8XX_CP_INTC_BASE), 744 .length = DA8XX_CP_INTC_SIZE, 745 .type = MT_DEVICE 746 }, 747 { 748 .virtual = SRAM_VIRT, 749 .pfn = __phys_to_pfn(DA8XX_ARM_RAM_BASE), 750 .length = SZ_8K, 751 .type = MT_DEVICE 752 }, 753 }; 754 755 static u32 da850_psc_bases[] = { DA8XX_PSC0_BASE, DA8XX_PSC1_BASE }; 756 757 /* Contents of JTAG ID register used to identify exact cpu type */ 758 static struct davinci_id da850_ids[] = { 759 { 760 .variant = 0x0, 761 .part_no = 0xb7d1, 762 .manufacturer = 0x017, /* 0x02f >> 1 */ 763 .cpu_id = DAVINCI_CPU_ID_DA850, 764 .name = "da850/omap-l138", 765 }, 766 { 767 .variant = 0x1, 768 .part_no = 0xb7d1, 769 .manufacturer = 0x017, /* 0x02f >> 1 */ 770 .cpu_id = DAVINCI_CPU_ID_DA850, 771 .name = "da850/omap-l138/am18x", 772 }, 773 }; 774 775 static struct davinci_timer_instance da850_timer_instance[4] = { 776 { 777 .base = DA8XX_TIMER64P0_BASE, 778 .bottom_irq = IRQ_DA8XX_TINT12_0, 779 .top_irq = IRQ_DA8XX_TINT34_0, 780 }, 781 { 782 .base = DA8XX_TIMER64P1_BASE, 783 .bottom_irq = IRQ_DA8XX_TINT12_1, 784 .top_irq = IRQ_DA8XX_TINT34_1, 785 }, 786 { 787 .base = DA850_TIMER64P2_BASE, 788 .bottom_irq = IRQ_DA850_TINT12_2, 789 .top_irq = IRQ_DA850_TINT34_2, 790 }, 791 { 792 .base = DA850_TIMER64P3_BASE, 793 .bottom_irq = IRQ_DA850_TINT12_3, 794 .top_irq = IRQ_DA850_TINT34_3, 795 }, 796 }; 797 798 /* 799 * T0_BOT: Timer 0, bottom : Used for clock_event 800 * T0_TOP: Timer 0, top : Used for clocksource 801 * T1_BOT, T1_TOP: Timer 1, bottom & top: Used for watchdog timer 802 */ 803 static struct davinci_timer_info da850_timer_info = { 804 .timers = da850_timer_instance, 805 .clockevent_id = T0_BOT, 806 .clocksource_id = T0_TOP, 807 }; 808 809 static void da850_set_async3_src(int pllnum) 810 { 811 struct clk *clk, *newparent = pllnum ? &pll1_sysclk2 : &pll0_sysclk2; 812 struct clk_lookup *c; 813 unsigned int v; 814 int ret; 815 816 for (c = da850_clks; c->clk; c++) { 817 clk = c->clk; 818 if (clk->flags & DA850_CLK_ASYNC3) { 819 ret = clk_set_parent(clk, newparent); 820 WARN(ret, "DA850: unable to re-parent clock %s", 821 clk->name); 822 } 823 } 824 825 v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG)); 826 if (pllnum) 827 v |= CFGCHIP3_ASYNC3_CLKSRC; 828 else 829 v &= ~CFGCHIP3_ASYNC3_CLKSRC; 830 __raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG)); 831 } 832 833 #ifdef CONFIG_CPU_FREQ 834 /* 835 * Notes: 836 * According to the TRM, minimum PLLM results in maximum power savings. 837 * The OPP definitions below should keep the PLLM as low as possible. 838 * 839 * The output of the PLLM must be between 300 to 600 MHz. 840 */ 841 struct da850_opp { 842 unsigned int freq; /* in KHz */ 843 unsigned int prediv; 844 unsigned int mult; 845 unsigned int postdiv; 846 unsigned int cvdd_min; /* in uV */ 847 unsigned int cvdd_max; /* in uV */ 848 }; 849 850 static const struct da850_opp da850_opp_456 = { 851 .freq = 456000, 852 .prediv = 1, 853 .mult = 19, 854 .postdiv = 1, 855 .cvdd_min = 1300000, 856 .cvdd_max = 1350000, 857 }; 858 859 static const struct da850_opp da850_opp_408 = { 860 .freq = 408000, 861 .prediv = 1, 862 .mult = 17, 863 .postdiv = 1, 864 .cvdd_min = 1300000, 865 .cvdd_max = 1350000, 866 }; 867 868 static const struct da850_opp da850_opp_372 = { 869 .freq = 372000, 870 .prediv = 2, 871 .mult = 31, 872 .postdiv = 1, 873 .cvdd_min = 1200000, 874 .cvdd_max = 1320000, 875 }; 876 877 static const struct da850_opp da850_opp_300 = { 878 .freq = 300000, 879 .prediv = 1, 880 .mult = 25, 881 .postdiv = 2, 882 .cvdd_min = 1200000, 883 .cvdd_max = 1320000, 884 }; 885 886 static const struct da850_opp da850_opp_200 = { 887 .freq = 200000, 888 .prediv = 1, 889 .mult = 25, 890 .postdiv = 3, 891 .cvdd_min = 1100000, 892 .cvdd_max = 1160000, 893 }; 894 895 static const struct da850_opp da850_opp_96 = { 896 .freq = 96000, 897 .prediv = 1, 898 .mult = 20, 899 .postdiv = 5, 900 .cvdd_min = 1000000, 901 .cvdd_max = 1050000, 902 }; 903 904 #define OPP(freq) \ 905 { \ 906 .index = (unsigned int) &da850_opp_##freq, \ 907 .frequency = freq * 1000, \ 908 } 909 910 static struct cpufreq_frequency_table da850_freq_table[] = { 911 OPP(456), 912 OPP(408), 913 OPP(372), 914 OPP(300), 915 OPP(200), 916 OPP(96), 917 { 918 .index = 0, 919 .frequency = CPUFREQ_TABLE_END, 920 }, 921 }; 922 923 #ifdef CONFIG_REGULATOR 924 static int da850_set_voltage(unsigned int index); 925 static int da850_regulator_init(void); 926 #endif 927 928 static struct davinci_cpufreq_config cpufreq_info = { 929 .freq_table = da850_freq_table, 930 #ifdef CONFIG_REGULATOR 931 .init = da850_regulator_init, 932 .set_voltage = da850_set_voltage, 933 #endif 934 }; 935 936 #ifdef CONFIG_REGULATOR 937 static struct regulator *cvdd; 938 939 static int da850_set_voltage(unsigned int index) 940 { 941 struct da850_opp *opp; 942 943 if (!cvdd) 944 return -ENODEV; 945 946 opp = (struct da850_opp *) cpufreq_info.freq_table[index].index; 947 948 return regulator_set_voltage(cvdd, opp->cvdd_min, opp->cvdd_max); 949 } 950 951 static int da850_regulator_init(void) 952 { 953 cvdd = regulator_get(NULL, "cvdd"); 954 if (WARN(IS_ERR(cvdd), "Unable to obtain voltage regulator for CVDD;" 955 " voltage scaling unsupported\n")) { 956 return PTR_ERR(cvdd); 957 } 958 959 return 0; 960 } 961 #endif 962 963 static struct platform_device da850_cpufreq_device = { 964 .name = "cpufreq-davinci", 965 .dev = { 966 .platform_data = &cpufreq_info, 967 }, 968 .id = -1, 969 }; 970 971 unsigned int da850_max_speed = 300000; 972 973 int __init da850_register_cpufreq(char *async_clk) 974 { 975 int i; 976 977 /* cpufreq driver can help keep an "async" clock constant */ 978 if (async_clk) 979 clk_add_alias("async", da850_cpufreq_device.name, 980 async_clk, NULL); 981 for (i = 0; i < ARRAY_SIZE(da850_freq_table); i++) { 982 if (da850_freq_table[i].frequency <= da850_max_speed) { 983 cpufreq_info.freq_table = &da850_freq_table[i]; 984 break; 985 } 986 } 987 988 return platform_device_register(&da850_cpufreq_device); 989 } 990 991 static int da850_round_armrate(struct clk *clk, unsigned long rate) 992 { 993 int i, ret = 0, diff; 994 unsigned int best = (unsigned int) -1; 995 struct cpufreq_frequency_table *table = cpufreq_info.freq_table; 996 997 rate /= 1000; /* convert to kHz */ 998 999 for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) { 1000 diff = table[i].frequency - rate; 1001 if (diff < 0) 1002 diff = -diff; 1003 1004 if (diff < best) { 1005 best = diff; 1006 ret = table[i].frequency; 1007 } 1008 } 1009 1010 return ret * 1000; 1011 } 1012 1013 static int da850_set_armrate(struct clk *clk, unsigned long index) 1014 { 1015 struct clk *pllclk = &pll0_clk; 1016 1017 return clk_set_rate(pllclk, index); 1018 } 1019 1020 static int da850_set_pll0rate(struct clk *clk, unsigned long index) 1021 { 1022 unsigned int prediv, mult, postdiv; 1023 struct da850_opp *opp; 1024 struct pll_data *pll = clk->pll_data; 1025 int ret; 1026 1027 opp = (struct da850_opp *) cpufreq_info.freq_table[index].index; 1028 prediv = opp->prediv; 1029 mult = opp->mult; 1030 postdiv = opp->postdiv; 1031 1032 ret = davinci_set_pllrate(pll, prediv, mult, postdiv); 1033 if (WARN_ON(ret)) 1034 return ret; 1035 1036 return 0; 1037 } 1038 #else 1039 int __init da850_register_cpufreq(char *async_clk) 1040 { 1041 return 0; 1042 } 1043 1044 static int da850_set_armrate(struct clk *clk, unsigned long rate) 1045 { 1046 return -EINVAL; 1047 } 1048 1049 static int da850_set_pll0rate(struct clk *clk, unsigned long armrate) 1050 { 1051 return -EINVAL; 1052 } 1053 1054 static int da850_round_armrate(struct clk *clk, unsigned long rate) 1055 { 1056 return clk->rate; 1057 } 1058 #endif 1059 1060 int da850_register_pm(struct platform_device *pdev) 1061 { 1062 int ret; 1063 struct davinci_pm_config *pdata = pdev->dev.platform_data; 1064 1065 ret = davinci_cfg_reg(DA850_RTC_ALARM); 1066 if (ret) 1067 return ret; 1068 1069 pdata->ddr2_ctlr_base = da8xx_get_mem_ctlr(); 1070 pdata->deepsleep_reg = DA8XX_SYSCFG1_VIRT(DA8XX_DEEPSLEEP_REG); 1071 pdata->ddrpsc_num = DA8XX_LPSC1_EMIF3C; 1072 1073 pdata->cpupll_reg_base = ioremap(DA8XX_PLL0_BASE, SZ_4K); 1074 if (!pdata->cpupll_reg_base) 1075 return -ENOMEM; 1076 1077 pdata->ddrpll_reg_base = ioremap(DA850_PLL1_BASE, SZ_4K); 1078 if (!pdata->ddrpll_reg_base) { 1079 ret = -ENOMEM; 1080 goto no_ddrpll_mem; 1081 } 1082 1083 pdata->ddrpsc_reg_base = ioremap(DA8XX_PSC1_BASE, SZ_4K); 1084 if (!pdata->ddrpsc_reg_base) { 1085 ret = -ENOMEM; 1086 goto no_ddrpsc_mem; 1087 } 1088 1089 return platform_device_register(pdev); 1090 1091 no_ddrpsc_mem: 1092 iounmap(pdata->ddrpll_reg_base); 1093 no_ddrpll_mem: 1094 iounmap(pdata->cpupll_reg_base); 1095 return ret; 1096 } 1097 1098 static struct davinci_soc_info davinci_soc_info_da850 = { 1099 .io_desc = da850_io_desc, 1100 .io_desc_num = ARRAY_SIZE(da850_io_desc), 1101 .jtag_id_reg = DA8XX_SYSCFG0_BASE + DA8XX_JTAG_ID_REG, 1102 .ids = da850_ids, 1103 .ids_num = ARRAY_SIZE(da850_ids), 1104 .cpu_clks = da850_clks, 1105 .psc_bases = da850_psc_bases, 1106 .psc_bases_num = ARRAY_SIZE(da850_psc_bases), 1107 .pinmux_base = DA8XX_SYSCFG0_BASE + 0x120, 1108 .pinmux_pins = da850_pins, 1109 .pinmux_pins_num = ARRAY_SIZE(da850_pins), 1110 .intc_base = DA8XX_CP_INTC_BASE, 1111 .intc_type = DAVINCI_INTC_TYPE_CP_INTC, 1112 .intc_irq_prios = da850_default_priorities, 1113 .intc_irq_num = DA850_N_CP_INTC_IRQ, 1114 .timer_info = &da850_timer_info, 1115 .gpio_type = GPIO_TYPE_DAVINCI, 1116 .gpio_base = DA8XX_GPIO_BASE, 1117 .gpio_num = 144, 1118 .gpio_irq = IRQ_DA8XX_GPIO0, 1119 .serial_dev = &da8xx_serial_device, 1120 .emac_pdata = &da8xx_emac_pdata, 1121 .sram_dma = DA8XX_ARM_RAM_BASE, 1122 .sram_len = SZ_8K, 1123 .reset_device = &da8xx_wdt_device, 1124 }; 1125 1126 void __init da850_init(void) 1127 { 1128 unsigned int v; 1129 1130 davinci_common_init(&davinci_soc_info_da850); 1131 1132 da8xx_syscfg0_base = ioremap(DA8XX_SYSCFG0_BASE, SZ_4K); 1133 if (WARN(!da8xx_syscfg0_base, "Unable to map syscfg0 module")) 1134 return; 1135 1136 da8xx_syscfg1_base = ioremap(DA8XX_SYSCFG1_BASE, SZ_4K); 1137 if (WARN(!da8xx_syscfg1_base, "Unable to map syscfg1 module")) 1138 return; 1139 1140 /* 1141 * Move the clock source of Async3 domain to PLL1 SYSCLK2. 1142 * This helps keeping the peripherals on this domain insulated 1143 * from CPU frequency changes caused by DVFS. The firmware sets 1144 * both PLL0 and PLL1 to the same frequency so, there should not 1145 * be any noticeable change even in non-DVFS use cases. 1146 */ 1147 da850_set_async3_src(1); 1148 1149 /* Unlock writing to PLL0 registers */ 1150 v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP0_REG)); 1151 v &= ~CFGCHIP0_PLL_MASTER_LOCK; 1152 __raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP0_REG)); 1153 1154 /* Unlock writing to PLL1 registers */ 1155 v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG)); 1156 v &= ~CFGCHIP3_PLL1_MASTER_LOCK; 1157 __raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG)); 1158 } 1159