1 /* 2 * OMAP2/3 System Control Module register access 3 * 4 * Copyright (C) 2007 Texas Instruments, Inc. 5 * Copyright (C) 2007 Nokia Corporation 6 * 7 * Written by Paul Walmsley 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License version 2 as 11 * published by the Free Software Foundation. 12 */ 13 #undef DEBUG 14 15 #include <linux/kernel.h> 16 #include <linux/io.h> 17 18 #include <plat/common.h> 19 #include <plat/sdrc.h> 20 21 #include "cm-regbits-34xx.h" 22 #include "prm-regbits-34xx.h" 23 #include "prm2xxx_3xxx.h" 24 #include "cm2xxx_3xxx.h" 25 #include "sdrc.h" 26 #include "pm.h" 27 #include "control.h" 28 29 /* Used by omap3_ctrl_save_padconf() */ 30 #define START_PADCONF_SAVE 0x2 31 #define PADCONF_SAVE_DONE 0x1 32 33 static void __iomem *omap2_ctrl_base; 34 static void __iomem *omap4_ctrl_pad_base; 35 36 #if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM) 37 struct omap3_scratchpad { 38 u32 boot_config_ptr; 39 u32 public_restore_ptr; 40 u32 secure_ram_restore_ptr; 41 u32 sdrc_module_semaphore; 42 u32 prcm_block_offset; 43 u32 sdrc_block_offset; 44 }; 45 46 struct omap3_scratchpad_prcm_block { 47 u32 prm_clksrc_ctrl; 48 u32 prm_clksel; 49 u32 cm_clksel_core; 50 u32 cm_clksel_wkup; 51 u32 cm_clken_pll; 52 u32 cm_autoidle_pll; 53 u32 cm_clksel1_pll; 54 u32 cm_clksel2_pll; 55 u32 cm_clksel3_pll; 56 u32 cm_clken_pll_mpu; 57 u32 cm_autoidle_pll_mpu; 58 u32 cm_clksel1_pll_mpu; 59 u32 cm_clksel2_pll_mpu; 60 u32 prcm_block_size; 61 }; 62 63 struct omap3_scratchpad_sdrc_block { 64 u16 sysconfig; 65 u16 cs_cfg; 66 u16 sharing; 67 u16 err_type; 68 u32 dll_a_ctrl; 69 u32 dll_b_ctrl; 70 u32 power; 71 u32 cs_0; 72 u32 mcfg_0; 73 u16 mr_0; 74 u16 emr_1_0; 75 u16 emr_2_0; 76 u16 emr_3_0; 77 u32 actim_ctrla_0; 78 u32 actim_ctrlb_0; 79 u32 rfr_ctrl_0; 80 u32 cs_1; 81 u32 mcfg_1; 82 u16 mr_1; 83 u16 emr_1_1; 84 u16 emr_2_1; 85 u16 emr_3_1; 86 u32 actim_ctrla_1; 87 u32 actim_ctrlb_1; 88 u32 rfr_ctrl_1; 89 u16 dcdl_1_ctrl; 90 u16 dcdl_2_ctrl; 91 u32 flags; 92 u32 block_size; 93 }; 94 95 void *omap3_secure_ram_storage; 96 97 /* 98 * This is used to store ARM registers in SDRAM before attempting 99 * an MPU OFF. The save and restore happens from the SRAM sleep code. 100 * The address is stored in scratchpad, so that it can be used 101 * during the restore path. 102 */ 103 u32 omap3_arm_context[128]; 104 105 struct omap3_control_regs { 106 u32 sysconfig; 107 u32 devconf0; 108 u32 mem_dftrw0; 109 u32 mem_dftrw1; 110 u32 msuspendmux_0; 111 u32 msuspendmux_1; 112 u32 msuspendmux_2; 113 u32 msuspendmux_3; 114 u32 msuspendmux_4; 115 u32 msuspendmux_5; 116 u32 sec_ctrl; 117 u32 devconf1; 118 u32 csirxfe; 119 u32 iva2_bootaddr; 120 u32 iva2_bootmod; 121 u32 debobs_0; 122 u32 debobs_1; 123 u32 debobs_2; 124 u32 debobs_3; 125 u32 debobs_4; 126 u32 debobs_5; 127 u32 debobs_6; 128 u32 debobs_7; 129 u32 debobs_8; 130 u32 prog_io0; 131 u32 prog_io1; 132 u32 dss_dpll_spreading; 133 u32 core_dpll_spreading; 134 u32 per_dpll_spreading; 135 u32 usbhost_dpll_spreading; 136 u32 pbias_lite; 137 u32 temp_sensor; 138 u32 sramldo4; 139 u32 sramldo5; 140 u32 csi; 141 u32 padconf_sys_nirq; 142 }; 143 144 static struct omap3_control_regs control_context; 145 #endif /* CONFIG_ARCH_OMAP3 && CONFIG_PM */ 146 147 #define OMAP_CTRL_REGADDR(reg) (omap2_ctrl_base + (reg)) 148 #define OMAP4_CTRL_PAD_REGADDR(reg) (omap4_ctrl_pad_base + (reg)) 149 150 void __init omap2_set_globals_control(struct omap_globals *omap2_globals) 151 { 152 /* Static mapping, never released */ 153 if (omap2_globals->ctrl) { 154 omap2_ctrl_base = ioremap(omap2_globals->ctrl, SZ_4K); 155 WARN_ON(!omap2_ctrl_base); 156 } 157 158 /* Static mapping, never released */ 159 if (omap2_globals->ctrl_pad) { 160 omap4_ctrl_pad_base = ioremap(omap2_globals->ctrl_pad, SZ_4K); 161 WARN_ON(!omap4_ctrl_pad_base); 162 } 163 } 164 165 void __iomem *omap_ctrl_base_get(void) 166 { 167 return omap2_ctrl_base; 168 } 169 170 u8 omap_ctrl_readb(u16 offset) 171 { 172 return __raw_readb(OMAP_CTRL_REGADDR(offset)); 173 } 174 175 u16 omap_ctrl_readw(u16 offset) 176 { 177 return __raw_readw(OMAP_CTRL_REGADDR(offset)); 178 } 179 180 u32 omap_ctrl_readl(u16 offset) 181 { 182 return __raw_readl(OMAP_CTRL_REGADDR(offset)); 183 } 184 185 void omap_ctrl_writeb(u8 val, u16 offset) 186 { 187 __raw_writeb(val, OMAP_CTRL_REGADDR(offset)); 188 } 189 190 void omap_ctrl_writew(u16 val, u16 offset) 191 { 192 __raw_writew(val, OMAP_CTRL_REGADDR(offset)); 193 } 194 195 void omap_ctrl_writel(u32 val, u16 offset) 196 { 197 __raw_writel(val, OMAP_CTRL_REGADDR(offset)); 198 } 199 200 /* 201 * On OMAP4 control pad are not addressable from control 202 * core base. So the common omap_ctrl_read/write APIs breaks 203 * Hence export separate APIs to manage the omap4 pad control 204 * registers. This APIs will work only for OMAP4 205 */ 206 207 u32 omap4_ctrl_pad_readl(u16 offset) 208 { 209 return __raw_readl(OMAP4_CTRL_PAD_REGADDR(offset)); 210 } 211 212 void omap4_ctrl_pad_writel(u32 val, u16 offset) 213 { 214 __raw_writel(val, OMAP4_CTRL_PAD_REGADDR(offset)); 215 } 216 217 #ifdef CONFIG_ARCH_OMAP3 218 219 /** 220 * omap3_ctrl_write_boot_mode - set scratchpad boot mode for the next boot 221 * @bootmode: 8-bit value to pass to some boot code 222 * 223 * Set the bootmode in the scratchpad RAM. This is used after the 224 * system restarts. Not sure what actually uses this - it may be the 225 * bootloader, rather than the boot ROM - contrary to the preserved 226 * comment below. No return value. 227 */ 228 void omap3_ctrl_write_boot_mode(u8 bootmode) 229 { 230 u32 l; 231 232 l = ('B' << 24) | ('M' << 16) | bootmode; 233 234 /* 235 * Reserve the first word in scratchpad for communicating 236 * with the boot ROM. A pointer to a data structure 237 * describing the boot process can be stored there, 238 * cf. OMAP34xx TRM, Initialization / Software Booting 239 * Configuration. 240 * 241 * XXX This should use some omap_ctrl_writel()-type function 242 */ 243 __raw_writel(l, OMAP2_L4_IO_ADDRESS(OMAP343X_SCRATCHPAD + 4)); 244 } 245 246 #endif 247 248 #if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM) 249 /* 250 * Clears the scratchpad contents in case of cold boot- 251 * called during bootup 252 */ 253 void omap3_clear_scratchpad_contents(void) 254 { 255 u32 max_offset = OMAP343X_SCRATCHPAD_ROM_OFFSET; 256 void __iomem *v_addr; 257 u32 offset = 0; 258 v_addr = OMAP2_L4_IO_ADDRESS(OMAP343X_SCRATCHPAD_ROM); 259 if (omap2_prm_read_mod_reg(OMAP3430_GR_MOD, OMAP3_PRM_RSTST_OFFSET) & 260 OMAP3430_GLOBAL_COLD_RST_MASK) { 261 for ( ; offset <= max_offset; offset += 0x4) 262 __raw_writel(0x0, (v_addr + offset)); 263 omap2_prm_set_mod_reg_bits(OMAP3430_GLOBAL_COLD_RST_MASK, 264 OMAP3430_GR_MOD, 265 OMAP3_PRM_RSTST_OFFSET); 266 } 267 } 268 269 /* Populate the scratchpad structure with restore structure */ 270 void omap3_save_scratchpad_contents(void) 271 { 272 void __iomem *scratchpad_address; 273 u32 arm_context_addr; 274 struct omap3_scratchpad scratchpad_contents; 275 struct omap3_scratchpad_prcm_block prcm_block_contents; 276 struct omap3_scratchpad_sdrc_block sdrc_block_contents; 277 278 /* 279 * Populate the Scratchpad contents 280 * 281 * The "get_*restore_pointer" functions are used to provide a 282 * physical restore address where the ROM code jumps while waking 283 * up from MPU OFF/OSWR state. 284 * The restore pointer is stored into the scratchpad. 285 */ 286 scratchpad_contents.boot_config_ptr = 0x0; 287 if (cpu_is_omap3630()) 288 scratchpad_contents.public_restore_ptr = 289 virt_to_phys(get_omap3630_restore_pointer()); 290 else if (omap_rev() != OMAP3430_REV_ES3_0 && 291 omap_rev() != OMAP3430_REV_ES3_1) 292 scratchpad_contents.public_restore_ptr = 293 virt_to_phys(get_restore_pointer()); 294 else 295 scratchpad_contents.public_restore_ptr = 296 virt_to_phys(get_es3_restore_pointer()); 297 if (omap_type() == OMAP2_DEVICE_TYPE_GP) 298 scratchpad_contents.secure_ram_restore_ptr = 0x0; 299 else 300 scratchpad_contents.secure_ram_restore_ptr = 301 (u32) __pa(omap3_secure_ram_storage); 302 scratchpad_contents.sdrc_module_semaphore = 0x0; 303 scratchpad_contents.prcm_block_offset = 0x2C; 304 scratchpad_contents.sdrc_block_offset = 0x64; 305 306 /* Populate the PRCM block contents */ 307 prcm_block_contents.prm_clksrc_ctrl = 308 omap2_prm_read_mod_reg(OMAP3430_GR_MOD, 309 OMAP3_PRM_CLKSRC_CTRL_OFFSET); 310 prcm_block_contents.prm_clksel = 311 omap2_prm_read_mod_reg(OMAP3430_CCR_MOD, 312 OMAP3_PRM_CLKSEL_OFFSET); 313 prcm_block_contents.cm_clksel_core = 314 omap2_cm_read_mod_reg(CORE_MOD, CM_CLKSEL); 315 prcm_block_contents.cm_clksel_wkup = 316 omap2_cm_read_mod_reg(WKUP_MOD, CM_CLKSEL); 317 prcm_block_contents.cm_clken_pll = 318 omap2_cm_read_mod_reg(PLL_MOD, CM_CLKEN); 319 prcm_block_contents.cm_autoidle_pll = 320 omap2_cm_read_mod_reg(PLL_MOD, OMAP3430_CM_AUTOIDLE_PLL); 321 prcm_block_contents.cm_clksel1_pll = 322 omap2_cm_read_mod_reg(PLL_MOD, OMAP3430_CM_CLKSEL1_PLL); 323 prcm_block_contents.cm_clksel2_pll = 324 omap2_cm_read_mod_reg(PLL_MOD, OMAP3430_CM_CLKSEL2_PLL); 325 prcm_block_contents.cm_clksel3_pll = 326 omap2_cm_read_mod_reg(PLL_MOD, OMAP3430_CM_CLKSEL3); 327 prcm_block_contents.cm_clken_pll_mpu = 328 omap2_cm_read_mod_reg(MPU_MOD, OMAP3430_CM_CLKEN_PLL); 329 prcm_block_contents.cm_autoidle_pll_mpu = 330 omap2_cm_read_mod_reg(MPU_MOD, OMAP3430_CM_AUTOIDLE_PLL); 331 prcm_block_contents.cm_clksel1_pll_mpu = 332 omap2_cm_read_mod_reg(MPU_MOD, OMAP3430_CM_CLKSEL1_PLL); 333 prcm_block_contents.cm_clksel2_pll_mpu = 334 omap2_cm_read_mod_reg(MPU_MOD, OMAP3430_CM_CLKSEL2_PLL); 335 prcm_block_contents.prcm_block_size = 0x0; 336 337 /* Populate the SDRC block contents */ 338 sdrc_block_contents.sysconfig = 339 (sdrc_read_reg(SDRC_SYSCONFIG) & 0xFFFF); 340 sdrc_block_contents.cs_cfg = 341 (sdrc_read_reg(SDRC_CS_CFG) & 0xFFFF); 342 sdrc_block_contents.sharing = 343 (sdrc_read_reg(SDRC_SHARING) & 0xFFFF); 344 sdrc_block_contents.err_type = 345 (sdrc_read_reg(SDRC_ERR_TYPE) & 0xFFFF); 346 sdrc_block_contents.dll_a_ctrl = sdrc_read_reg(SDRC_DLLA_CTRL); 347 sdrc_block_contents.dll_b_ctrl = 0x0; 348 /* 349 * Due to a OMAP3 errata (1.142), on EMU/HS devices SRDC should 350 * be programed to issue automatic self refresh on timeout 351 * of AUTO_CNT = 1 prior to any transition to OFF mode. 352 */ 353 if ((omap_type() != OMAP2_DEVICE_TYPE_GP) 354 && (omap_rev() >= OMAP3430_REV_ES3_0)) 355 sdrc_block_contents.power = (sdrc_read_reg(SDRC_POWER) & 356 ~(SDRC_POWER_AUTOCOUNT_MASK| 357 SDRC_POWER_CLKCTRL_MASK)) | 358 (1 << SDRC_POWER_AUTOCOUNT_SHIFT) | 359 SDRC_SELF_REFRESH_ON_AUTOCOUNT; 360 else 361 sdrc_block_contents.power = sdrc_read_reg(SDRC_POWER); 362 363 sdrc_block_contents.cs_0 = 0x0; 364 sdrc_block_contents.mcfg_0 = sdrc_read_reg(SDRC_MCFG_0); 365 sdrc_block_contents.mr_0 = (sdrc_read_reg(SDRC_MR_0) & 0xFFFF); 366 sdrc_block_contents.emr_1_0 = 0x0; 367 sdrc_block_contents.emr_2_0 = 0x0; 368 sdrc_block_contents.emr_3_0 = 0x0; 369 sdrc_block_contents.actim_ctrla_0 = 370 sdrc_read_reg(SDRC_ACTIM_CTRL_A_0); 371 sdrc_block_contents.actim_ctrlb_0 = 372 sdrc_read_reg(SDRC_ACTIM_CTRL_B_0); 373 sdrc_block_contents.rfr_ctrl_0 = 374 sdrc_read_reg(SDRC_RFR_CTRL_0); 375 sdrc_block_contents.cs_1 = 0x0; 376 sdrc_block_contents.mcfg_1 = sdrc_read_reg(SDRC_MCFG_1); 377 sdrc_block_contents.mr_1 = sdrc_read_reg(SDRC_MR_1) & 0xFFFF; 378 sdrc_block_contents.emr_1_1 = 0x0; 379 sdrc_block_contents.emr_2_1 = 0x0; 380 sdrc_block_contents.emr_3_1 = 0x0; 381 sdrc_block_contents.actim_ctrla_1 = 382 sdrc_read_reg(SDRC_ACTIM_CTRL_A_1); 383 sdrc_block_contents.actim_ctrlb_1 = 384 sdrc_read_reg(SDRC_ACTIM_CTRL_B_1); 385 sdrc_block_contents.rfr_ctrl_1 = 386 sdrc_read_reg(SDRC_RFR_CTRL_1); 387 sdrc_block_contents.dcdl_1_ctrl = 0x0; 388 sdrc_block_contents.dcdl_2_ctrl = 0x0; 389 sdrc_block_contents.flags = 0x0; 390 sdrc_block_contents.block_size = 0x0; 391 392 arm_context_addr = virt_to_phys(omap3_arm_context); 393 394 /* Copy all the contents to the scratchpad location */ 395 scratchpad_address = OMAP2_L4_IO_ADDRESS(OMAP343X_SCRATCHPAD); 396 memcpy_toio(scratchpad_address, &scratchpad_contents, 397 sizeof(scratchpad_contents)); 398 /* Scratchpad contents being 32 bits, a divide by 4 done here */ 399 memcpy_toio(scratchpad_address + 400 scratchpad_contents.prcm_block_offset, 401 &prcm_block_contents, sizeof(prcm_block_contents)); 402 memcpy_toio(scratchpad_address + 403 scratchpad_contents.sdrc_block_offset, 404 &sdrc_block_contents, sizeof(sdrc_block_contents)); 405 /* 406 * Copies the address of the location in SDRAM where ARM 407 * registers get saved during a MPU OFF transition. 408 */ 409 memcpy_toio(scratchpad_address + 410 scratchpad_contents.sdrc_block_offset + 411 sizeof(sdrc_block_contents), &arm_context_addr, 4); 412 } 413 414 void omap3_control_save_context(void) 415 { 416 control_context.sysconfig = omap_ctrl_readl(OMAP2_CONTROL_SYSCONFIG); 417 control_context.devconf0 = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); 418 control_context.mem_dftrw0 = 419 omap_ctrl_readl(OMAP343X_CONTROL_MEM_DFTRW0); 420 control_context.mem_dftrw1 = 421 omap_ctrl_readl(OMAP343X_CONTROL_MEM_DFTRW1); 422 control_context.msuspendmux_0 = 423 omap_ctrl_readl(OMAP2_CONTROL_MSUSPENDMUX_0); 424 control_context.msuspendmux_1 = 425 omap_ctrl_readl(OMAP2_CONTROL_MSUSPENDMUX_1); 426 control_context.msuspendmux_2 = 427 omap_ctrl_readl(OMAP2_CONTROL_MSUSPENDMUX_2); 428 control_context.msuspendmux_3 = 429 omap_ctrl_readl(OMAP2_CONTROL_MSUSPENDMUX_3); 430 control_context.msuspendmux_4 = 431 omap_ctrl_readl(OMAP2_CONTROL_MSUSPENDMUX_4); 432 control_context.msuspendmux_5 = 433 omap_ctrl_readl(OMAP2_CONTROL_MSUSPENDMUX_5); 434 control_context.sec_ctrl = omap_ctrl_readl(OMAP2_CONTROL_SEC_CTRL); 435 control_context.devconf1 = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1); 436 control_context.csirxfe = omap_ctrl_readl(OMAP343X_CONTROL_CSIRXFE); 437 control_context.iva2_bootaddr = 438 omap_ctrl_readl(OMAP343X_CONTROL_IVA2_BOOTADDR); 439 control_context.iva2_bootmod = 440 omap_ctrl_readl(OMAP343X_CONTROL_IVA2_BOOTMOD); 441 control_context.debobs_0 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(0)); 442 control_context.debobs_1 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(1)); 443 control_context.debobs_2 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(2)); 444 control_context.debobs_3 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(3)); 445 control_context.debobs_4 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(4)); 446 control_context.debobs_5 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(5)); 447 control_context.debobs_6 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(6)); 448 control_context.debobs_7 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(7)); 449 control_context.debobs_8 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(8)); 450 control_context.prog_io0 = omap_ctrl_readl(OMAP343X_CONTROL_PROG_IO0); 451 control_context.prog_io1 = omap_ctrl_readl(OMAP343X_CONTROL_PROG_IO1); 452 control_context.dss_dpll_spreading = 453 omap_ctrl_readl(OMAP343X_CONTROL_DSS_DPLL_SPREADING); 454 control_context.core_dpll_spreading = 455 omap_ctrl_readl(OMAP343X_CONTROL_CORE_DPLL_SPREADING); 456 control_context.per_dpll_spreading = 457 omap_ctrl_readl(OMAP343X_CONTROL_PER_DPLL_SPREADING); 458 control_context.usbhost_dpll_spreading = 459 omap_ctrl_readl(OMAP343X_CONTROL_USBHOST_DPLL_SPREADING); 460 control_context.pbias_lite = 461 omap_ctrl_readl(OMAP343X_CONTROL_PBIAS_LITE); 462 control_context.temp_sensor = 463 omap_ctrl_readl(OMAP343X_CONTROL_TEMP_SENSOR); 464 control_context.sramldo4 = omap_ctrl_readl(OMAP343X_CONTROL_SRAMLDO4); 465 control_context.sramldo5 = omap_ctrl_readl(OMAP343X_CONTROL_SRAMLDO5); 466 control_context.csi = omap_ctrl_readl(OMAP343X_CONTROL_CSI); 467 control_context.padconf_sys_nirq = 468 omap_ctrl_readl(OMAP343X_CONTROL_PADCONF_SYSNIRQ); 469 return; 470 } 471 472 void omap3_control_restore_context(void) 473 { 474 omap_ctrl_writel(control_context.sysconfig, OMAP2_CONTROL_SYSCONFIG); 475 omap_ctrl_writel(control_context.devconf0, OMAP2_CONTROL_DEVCONF0); 476 omap_ctrl_writel(control_context.mem_dftrw0, 477 OMAP343X_CONTROL_MEM_DFTRW0); 478 omap_ctrl_writel(control_context.mem_dftrw1, 479 OMAP343X_CONTROL_MEM_DFTRW1); 480 omap_ctrl_writel(control_context.msuspendmux_0, 481 OMAP2_CONTROL_MSUSPENDMUX_0); 482 omap_ctrl_writel(control_context.msuspendmux_1, 483 OMAP2_CONTROL_MSUSPENDMUX_1); 484 omap_ctrl_writel(control_context.msuspendmux_2, 485 OMAP2_CONTROL_MSUSPENDMUX_2); 486 omap_ctrl_writel(control_context.msuspendmux_3, 487 OMAP2_CONTROL_MSUSPENDMUX_3); 488 omap_ctrl_writel(control_context.msuspendmux_4, 489 OMAP2_CONTROL_MSUSPENDMUX_4); 490 omap_ctrl_writel(control_context.msuspendmux_5, 491 OMAP2_CONTROL_MSUSPENDMUX_5); 492 omap_ctrl_writel(control_context.sec_ctrl, OMAP2_CONTROL_SEC_CTRL); 493 omap_ctrl_writel(control_context.devconf1, OMAP343X_CONTROL_DEVCONF1); 494 omap_ctrl_writel(control_context.csirxfe, OMAP343X_CONTROL_CSIRXFE); 495 omap_ctrl_writel(control_context.iva2_bootaddr, 496 OMAP343X_CONTROL_IVA2_BOOTADDR); 497 omap_ctrl_writel(control_context.iva2_bootmod, 498 OMAP343X_CONTROL_IVA2_BOOTMOD); 499 omap_ctrl_writel(control_context.debobs_0, OMAP343X_CONTROL_DEBOBS(0)); 500 omap_ctrl_writel(control_context.debobs_1, OMAP343X_CONTROL_DEBOBS(1)); 501 omap_ctrl_writel(control_context.debobs_2, OMAP343X_CONTROL_DEBOBS(2)); 502 omap_ctrl_writel(control_context.debobs_3, OMAP343X_CONTROL_DEBOBS(3)); 503 omap_ctrl_writel(control_context.debobs_4, OMAP343X_CONTROL_DEBOBS(4)); 504 omap_ctrl_writel(control_context.debobs_5, OMAP343X_CONTROL_DEBOBS(5)); 505 omap_ctrl_writel(control_context.debobs_6, OMAP343X_CONTROL_DEBOBS(6)); 506 omap_ctrl_writel(control_context.debobs_7, OMAP343X_CONTROL_DEBOBS(7)); 507 omap_ctrl_writel(control_context.debobs_8, OMAP343X_CONTROL_DEBOBS(8)); 508 omap_ctrl_writel(control_context.prog_io0, OMAP343X_CONTROL_PROG_IO0); 509 omap_ctrl_writel(control_context.prog_io1, OMAP343X_CONTROL_PROG_IO1); 510 omap_ctrl_writel(control_context.dss_dpll_spreading, 511 OMAP343X_CONTROL_DSS_DPLL_SPREADING); 512 omap_ctrl_writel(control_context.core_dpll_spreading, 513 OMAP343X_CONTROL_CORE_DPLL_SPREADING); 514 omap_ctrl_writel(control_context.per_dpll_spreading, 515 OMAP343X_CONTROL_PER_DPLL_SPREADING); 516 omap_ctrl_writel(control_context.usbhost_dpll_spreading, 517 OMAP343X_CONTROL_USBHOST_DPLL_SPREADING); 518 omap_ctrl_writel(control_context.pbias_lite, 519 OMAP343X_CONTROL_PBIAS_LITE); 520 omap_ctrl_writel(control_context.temp_sensor, 521 OMAP343X_CONTROL_TEMP_SENSOR); 522 omap_ctrl_writel(control_context.sramldo4, OMAP343X_CONTROL_SRAMLDO4); 523 omap_ctrl_writel(control_context.sramldo5, OMAP343X_CONTROL_SRAMLDO5); 524 omap_ctrl_writel(control_context.csi, OMAP343X_CONTROL_CSI); 525 omap_ctrl_writel(control_context.padconf_sys_nirq, 526 OMAP343X_CONTROL_PADCONF_SYSNIRQ); 527 return; 528 } 529 530 void omap3630_ctrl_disable_rta(void) 531 { 532 if (!cpu_is_omap3630()) 533 return; 534 omap_ctrl_writel(OMAP36XX_RTA_DISABLE, OMAP36XX_CONTROL_MEM_RTA_CTRL); 535 } 536 537 /** 538 * omap3_ctrl_save_padconf - save padconf registers to scratchpad RAM 539 * 540 * Tell the SCM to start saving the padconf registers, then wait for 541 * the process to complete. Returns 0 unconditionally, although it 542 * should also eventually be able to return -ETIMEDOUT, if the save 543 * does not complete. 544 * 545 * XXX This function is missing a timeout. What should it be? 546 */ 547 int omap3_ctrl_save_padconf(void) 548 { 549 u32 cpo; 550 551 /* Save the padconf registers */ 552 cpo = omap_ctrl_readl(OMAP343X_CONTROL_PADCONF_OFF); 553 cpo |= START_PADCONF_SAVE; 554 omap_ctrl_writel(cpo, OMAP343X_CONTROL_PADCONF_OFF); 555 556 /* wait for the save to complete */ 557 while (!(omap_ctrl_readl(OMAP343X_CONTROL_GENERAL_PURPOSE_STATUS) 558 & PADCONF_SAVE_DONE)) 559 udelay(1); 560 561 return 0; 562 } 563 564 #endif /* CONFIG_ARCH_OMAP3 && CONFIG_PM */ 565