1 /* 2 * Copyright 2009-2012 Freescale Semiconductor, Inc. 3 * 4 * This file is derived from arch/powerpc/cpu/mpc85xx/cpu.c and 5 * arch/powerpc/cpu/mpc86xx/cpu.c. Basically this file contains 6 * cpu specific common code for 85xx/86xx processors. 7 * See file CREDITS for list of people who contributed to this 8 * project. 9 * 10 * This program is free software; you can redistribute it and/or 11 * modify it under the terms of the GNU General Public License as 12 * published by the Free Software Foundation; either version 2 of 13 * the License, or (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 23 * MA 02111-1307 USA 24 */ 25 26 #include <common.h> 27 #include <libfdt.h> 28 #include <fdt_support.h> 29 #include <asm/mp.h> 30 #include <asm/fsl_serdes.h> 31 #include <phy.h> 32 #include <hwconfig.h> 33 34 #define FSL_MAX_NUM_USB_CTRLS 2 35 36 #if defined(CONFIG_MP) && (defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)) 37 static int ft_del_cpuhandle(void *blob, int cpuhandle) 38 { 39 int off, ret = -FDT_ERR_NOTFOUND; 40 41 /* if we find a match, we'll delete at it which point the offsets are 42 * invalid so we start over from the beginning 43 */ 44 off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle", 45 &cpuhandle, 4); 46 while (off != -FDT_ERR_NOTFOUND) { 47 fdt_delprop(blob, off, "cpu-handle"); 48 ret = 1; 49 off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle", 50 &cpuhandle, 4); 51 } 52 53 return ret; 54 } 55 56 void ft_fixup_num_cores(void *blob) { 57 int off, num_cores, del_cores; 58 59 del_cores = 0; 60 num_cores = cpu_numcores(); 61 62 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4); 63 while (off != -FDT_ERR_NOTFOUND) { 64 u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0); 65 u32 phys_cpu_id = thread_to_core(*reg); 66 67 if (!is_core_valid(phys_cpu_id) || is_core_disabled(phys_cpu_id)) { 68 int ph = fdt_get_phandle(blob, off); 69 70 /* Delete the cpu node once there are no cpu handles */ 71 if (-FDT_ERR_NOTFOUND == ft_del_cpuhandle(blob, ph)) { 72 fdt_del_node(blob, off); 73 del_cores++; 74 } 75 /* either we deleted some cpu handles or the cpu node 76 * so we reset the offset back to the start since we 77 * can't trust the offsets anymore 78 */ 79 off = -1; 80 } 81 off = fdt_node_offset_by_prop_value(blob, off, 82 "device_type", "cpu", 4); 83 } 84 debug ("%x core system found\n", num_cores); 85 debug ("deleted %d extra core entry entries from device tree\n", 86 del_cores); 87 } 88 #endif /* defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) */ 89 90 #if defined(CONFIG_HAS_FSL_DR_USB) || defined(CONFIG_HAS_FSL_MPH_USB) 91 static int fdt_fixup_usb_mode_phy_type(void *blob, const char *mode, 92 const char *phy_type, int start_offset) 93 { 94 const char *compat_dr = "fsl-usb2-dr"; 95 const char *compat_mph = "fsl-usb2-mph"; 96 const char *prop_mode = "dr_mode"; 97 const char *prop_type = "phy_type"; 98 const char *node_type = NULL; 99 int node_offset; 100 int err; 101 102 node_offset = fdt_node_offset_by_compatible(blob, 103 start_offset, compat_mph); 104 if (node_offset < 0) { 105 node_offset = fdt_node_offset_by_compatible(blob, 106 start_offset, compat_dr); 107 if (node_offset < 0) { 108 printf("WARNING: could not find compatible" 109 " node %s or %s: %s.\n", compat_mph, 110 compat_dr, fdt_strerror(node_offset)); 111 return -1; 112 } else 113 node_type = compat_dr; 114 } else 115 node_type = compat_mph; 116 117 if (mode) { 118 err = fdt_setprop(blob, node_offset, prop_mode, mode, 119 strlen(mode) + 1); 120 if (err < 0) 121 printf("WARNING: could not set %s for %s: %s.\n", 122 prop_mode, node_type, fdt_strerror(err)); 123 } 124 125 if (phy_type) { 126 err = fdt_setprop(blob, node_offset, prop_type, phy_type, 127 strlen(phy_type) + 1); 128 if (err < 0) 129 printf("WARNING: could not set %s for %s: %s.\n", 130 prop_type, node_type, fdt_strerror(err)); 131 } 132 133 return node_offset; 134 } 135 136 void fdt_fixup_dr_usb(void *blob, bd_t *bd) 137 { 138 const char *modes[] = { "host", "peripheral", "otg" }; 139 const char *phys[] = { "ulpi", "utmi" }; 140 const char *mode = NULL; 141 const char *phy_type = NULL; 142 const char *dr_mode_type = NULL; 143 const char *dr_phy_type = NULL; 144 char usb1_defined = 0; 145 int usb_mode_off = -1; 146 int usb_phy_off = -1; 147 char str[5]; 148 int i, j; 149 150 for (i = 1; i <= FSL_MAX_NUM_USB_CTRLS; i++) { 151 int mode_idx = -1, phy_idx = -1; 152 snprintf(str, 5, "%s%d", "usb", i); 153 if (hwconfig(str)) { 154 for (j = 0; j < ARRAY_SIZE(modes); j++) { 155 if (hwconfig_subarg_cmp(str, "dr_mode", 156 modes[j])) { 157 mode_idx = j; 158 break; 159 } 160 } 161 162 for (j = 0; j < ARRAY_SIZE(phys); j++) { 163 if (hwconfig_subarg_cmp(str, "phy_type", 164 phys[j])) { 165 phy_idx = j; 166 break; 167 } 168 } 169 170 if (mode_idx < 0 || phy_idx < 0) { 171 puts("ERROR: wrong usb mode/phy defined!!\n"); 172 return; 173 } 174 175 dr_mode_type = modes[mode_idx]; 176 dr_phy_type = phys[phy_idx]; 177 178 /* use usb_dr_mode and usb_phy_type if 179 usb1_defined = 0; these variables are to 180 be deprecated */ 181 if (!strcmp(str, "usb1")) 182 usb1_defined = 1; 183 184 if (mode_idx < 0 && phy_idx < 0) { 185 printf("WARNING: invalid phy or mode\n"); 186 return; 187 } 188 } 189 190 usb_mode_off = fdt_fixup_usb_mode_phy_type(blob, 191 dr_mode_type, NULL, usb_mode_off); 192 193 if (usb_mode_off < 0) 194 return; 195 196 usb_phy_off = fdt_fixup_usb_mode_phy_type(blob, 197 NULL, dr_phy_type, usb_phy_off); 198 199 if (usb_phy_off < 0) 200 return; 201 } 202 203 if (!usb1_defined) { 204 int usb_off = -1; 205 mode = getenv("usb_dr_mode"); 206 phy_type = getenv("usb_phy_type"); 207 if (mode || phy_type) { 208 printf("WARNING: usb_dr_mode and usb_phy_type " 209 "are to be deprecated soon. Use " 210 "hwconfig to set these values instead!!\n"); 211 fdt_fixup_usb_mode_phy_type(blob, mode, 212 phy_type, usb_off); 213 } 214 } 215 } 216 #endif /* defined(CONFIG_HAS_FSL_DR_USB) || defined(CONFIG_HAS_FSL_MPH_USB) */ 217 218 /* 219 * update crypto node properties to a specified revision of the SEC 220 * called with sec_rev == 0 if not on an E processor 221 */ 222 #if CONFIG_SYS_FSL_SEC_COMPAT == 2 /* SEC 2.x/3.x */ 223 void fdt_fixup_crypto_node(void *blob, int sec_rev) 224 { 225 static const struct sec_rev_prop { 226 u32 sec_rev; 227 u32 num_channels; 228 u32 channel_fifo_len; 229 u32 exec_units_mask; 230 u32 descriptor_types_mask; 231 } sec_rev_prop_list [] = { 232 { 0x0200, 4, 24, 0x07e, 0x01010ebf }, /* SEC 2.0 */ 233 { 0x0201, 4, 24, 0x0fe, 0x012b0ebf }, /* SEC 2.1 */ 234 { 0x0202, 1, 24, 0x04c, 0x0122003f }, /* SEC 2.2 */ 235 { 0x0204, 4, 24, 0x07e, 0x012b0ebf }, /* SEC 2.4 */ 236 { 0x0300, 4, 24, 0x9fe, 0x03ab0ebf }, /* SEC 3.0 */ 237 { 0x0301, 4, 24, 0xbfe, 0x03ab0ebf }, /* SEC 3.1 */ 238 { 0x0303, 4, 24, 0x97c, 0x03a30abf }, /* SEC 3.3 */ 239 }; 240 static char compat_strlist[ARRAY_SIZE(sec_rev_prop_list) * 241 sizeof("fsl,secX.Y")]; 242 int crypto_node, sec_idx, err; 243 char *p; 244 u32 val; 245 246 /* locate crypto node based on lowest common compatible */ 247 crypto_node = fdt_node_offset_by_compatible(blob, -1, "fsl,sec2.0"); 248 if (crypto_node == -FDT_ERR_NOTFOUND) 249 return; 250 251 /* delete it if not on an E-processor */ 252 if (crypto_node > 0 && !sec_rev) { 253 fdt_del_node(blob, crypto_node); 254 return; 255 } 256 257 /* else we got called for possible uprev */ 258 for (sec_idx = 0; sec_idx < ARRAY_SIZE(sec_rev_prop_list); sec_idx++) 259 if (sec_rev_prop_list[sec_idx].sec_rev == sec_rev) 260 break; 261 262 if (sec_idx == ARRAY_SIZE(sec_rev_prop_list)) { 263 puts("warning: unknown SEC revision number\n"); 264 return; 265 } 266 267 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].num_channels); 268 err = fdt_setprop(blob, crypto_node, "fsl,num-channels", &val, 4); 269 if (err < 0) 270 printf("WARNING: could not set crypto property: %s\n", 271 fdt_strerror(err)); 272 273 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].descriptor_types_mask); 274 err = fdt_setprop(blob, crypto_node, "fsl,descriptor-types-mask", &val, 4); 275 if (err < 0) 276 printf("WARNING: could not set crypto property: %s\n", 277 fdt_strerror(err)); 278 279 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].exec_units_mask); 280 err = fdt_setprop(blob, crypto_node, "fsl,exec-units-mask", &val, 4); 281 if (err < 0) 282 printf("WARNING: could not set crypto property: %s\n", 283 fdt_strerror(err)); 284 285 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].channel_fifo_len); 286 err = fdt_setprop(blob, crypto_node, "fsl,channel-fifo-len", &val, 4); 287 if (err < 0) 288 printf("WARNING: could not set crypto property: %s\n", 289 fdt_strerror(err)); 290 291 val = 0; 292 while (sec_idx >= 0) { 293 p = compat_strlist + val; 294 val += sprintf(p, "fsl,sec%d.%d", 295 (sec_rev_prop_list[sec_idx].sec_rev & 0xff00) >> 8, 296 sec_rev_prop_list[sec_idx].sec_rev & 0x00ff) + 1; 297 sec_idx--; 298 } 299 err = fdt_setprop(blob, crypto_node, "compatible", &compat_strlist, val); 300 if (err < 0) 301 printf("WARNING: could not set crypto property: %s\n", 302 fdt_strerror(err)); 303 } 304 #elif CONFIG_SYS_FSL_SEC_COMPAT >= 4 /* SEC4 */ 305 static u8 caam_get_era(void) 306 { 307 static const struct { 308 u16 ip_id; 309 u8 maj_rev; 310 u8 era; 311 } caam_eras[] = { 312 {0x0A10, 1, 1}, 313 {0x0A10, 2, 2}, 314 {0x0A12, 1, 3}, 315 {0x0A14, 1, 3}, 316 {0x0A14, 2, 4}, 317 {0x0A16, 1, 4}, 318 {0x0A10, 3, 4}, 319 {0x0A11, 1, 4}, 320 {0x0A18, 1, 4}, 321 {0x0A11, 2, 5}, 322 {0x0A12, 2, 5}, 323 {0x0A13, 1, 5}, 324 {0x0A1C, 1, 5} 325 }; 326 327 ccsr_sec_t __iomem *sec = (void __iomem *)CONFIG_SYS_FSL_SEC_ADDR; 328 u32 secvid_ms = in_be32(&sec->secvid_ms); 329 u32 ccbvid = in_be32(&sec->ccbvid); 330 u16 ip_id = (secvid_ms & SEC_SECVID_MS_IPID_MASK) >> 331 SEC_SECVID_MS_IPID_SHIFT; 332 u8 maj_rev = (secvid_ms & SEC_SECVID_MS_MAJ_REV_MASK) >> 333 SEC_SECVID_MS_MAJ_REV_SHIFT; 334 u8 era = (ccbvid & SEC_CCBVID_ERA_MASK) >> SEC_CCBVID_ERA_SHIFT; 335 336 int i; 337 338 if (era) /* This is '0' prior to CAAM ERA-6 */ 339 return era; 340 341 for (i = 0; i < ARRAY_SIZE(caam_eras); i++) 342 if (caam_eras[i].ip_id == ip_id && 343 caam_eras[i].maj_rev == maj_rev) 344 return caam_eras[i].era; 345 346 return 0; 347 } 348 349 static void fdt_fixup_crypto_era(void *blob, u32 era) 350 { 351 int err; 352 int crypto_node; 353 354 crypto_node = fdt_path_offset(blob, "crypto"); 355 if (crypto_node < 0) { 356 printf("WARNING: Missing crypto node\n"); 357 return; 358 } 359 360 err = fdt_setprop(blob, crypto_node, "fsl,sec-era", &era, 361 sizeof(era)); 362 if (err < 0) { 363 printf("ERROR: could not set fsl,sec-era property: %s\n", 364 fdt_strerror(err)); 365 } 366 } 367 368 void fdt_fixup_crypto_node(void *blob, int sec_rev) 369 { 370 u8 era; 371 372 if (!sec_rev) { 373 fdt_del_node_and_alias(blob, "crypto"); 374 return; 375 } 376 377 /* Add SEC ERA information in compatible */ 378 era = caam_get_era(); 379 if (era) { 380 fdt_fixup_crypto_era(blob, era); 381 } else { 382 printf("WARNING: Unable to get ERA for CAAM rev: %d\n", 383 sec_rev); 384 } 385 } 386 #endif 387 388 int fdt_fixup_phy_connection(void *blob, int offset, phy_interface_t phyc) 389 { 390 return fdt_setprop_string(blob, offset, "phy-connection-type", 391 phy_string_for_interface(phyc)); 392 } 393 394 #ifdef CONFIG_SYS_SRIO 395 static inline void ft_disable_srio_port(void *blob, int srio_off, int port) 396 { 397 int off = fdt_node_offset_by_prop_value(blob, srio_off, 398 "cell-index", &port, 4); 399 if (off >= 0) { 400 off = fdt_setprop_string(blob, off, "status", "disabled"); 401 if (off > 0) 402 printf("WARNING unable to set status for fsl,srio " 403 "port %d: %s\n", port, fdt_strerror(off)); 404 } 405 } 406 407 static inline void ft_disable_rman(void *blob) 408 { 409 int off = fdt_node_offset_by_compatible(blob, -1, "fsl,rman"); 410 if (off >= 0) { 411 off = fdt_setprop_string(blob, off, "status", "disabled"); 412 if (off > 0) 413 printf("WARNING unable to set status for fsl,rman %s\n", 414 fdt_strerror(off)); 415 } 416 } 417 418 static inline void ft_disable_rmu(void *blob) 419 { 420 int off = fdt_node_offset_by_compatible(blob, -1, "fsl,srio-rmu"); 421 if (off >= 0) { 422 off = fdt_setprop_string(blob, off, "status", "disabled"); 423 if (off > 0) 424 printf("WARNING unable to set status for " 425 "fsl,srio-rmu %s\n", fdt_strerror(off)); 426 } 427 } 428 429 void ft_srio_setup(void *blob) 430 { 431 int srio1_used = 0, srio2_used = 0; 432 int srio_off; 433 434 /* search for srio node, if doesn't exist just return - nothing todo */ 435 srio_off = fdt_node_offset_by_compatible(blob, -1, "fsl,srio"); 436 if (srio_off < 0) 437 return ; 438 439 #ifdef CONFIG_SRIO1 440 if (is_serdes_configured(SRIO1)) 441 srio1_used = 1; 442 #endif 443 #ifdef CONFIG_SRIO2 444 if (is_serdes_configured(SRIO2)) 445 srio2_used = 1; 446 #endif 447 448 /* mark port1 disabled */ 449 if (!srio1_used) 450 ft_disable_srio_port(blob, srio_off, 1); 451 452 /* mark port2 disabled */ 453 if (!srio2_used) 454 ft_disable_srio_port(blob, srio_off, 2); 455 456 /* if both ports not used, disable controller, rmu and rman */ 457 if (!srio1_used && !srio2_used) { 458 fdt_setprop_string(blob, srio_off, "status", "disabled"); 459 460 ft_disable_rman(blob); 461 ft_disable_rmu(blob); 462 } 463 } 464 #endif 465