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