1 /* 2 * Copyright 2009-2014 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 #ifndef CONFIG_USB_MAX_CONTROLLER_COUNT 19 #define CONFIG_USB_MAX_CONTROLLER_COUNT 1 20 #endif 21 22 #if defined(CONFIG_MP) && (defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)) 23 static int ft_del_cpuhandle(void *blob, int cpuhandle) 24 { 25 int off, ret = -FDT_ERR_NOTFOUND; 26 27 /* if we find a match, we'll delete at it which point the offsets are 28 * invalid so we start over from the beginning 29 */ 30 off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle", 31 &cpuhandle, 4); 32 while (off != -FDT_ERR_NOTFOUND) { 33 fdt_delprop(blob, off, "cpu-handle"); 34 ret = 1; 35 off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle", 36 &cpuhandle, 4); 37 } 38 39 return ret; 40 } 41 42 void ft_fixup_num_cores(void *blob) { 43 int off, num_cores, del_cores; 44 45 del_cores = 0; 46 num_cores = cpu_numcores(); 47 48 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4); 49 while (off != -FDT_ERR_NOTFOUND) { 50 u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0); 51 u32 phys_cpu_id = thread_to_core(*reg); 52 53 if (!is_core_valid(phys_cpu_id) || is_core_disabled(phys_cpu_id)) { 54 int ph = fdt_get_phandle(blob, off); 55 56 /* Delete the cpu node once there are no cpu handles */ 57 if (-FDT_ERR_NOTFOUND == ft_del_cpuhandle(blob, ph)) { 58 fdt_del_node(blob, off); 59 del_cores++; 60 } 61 /* either we deleted some cpu handles or the cpu node 62 * so we reset the offset back to the start since we 63 * can't trust the offsets anymore 64 */ 65 off = -1; 66 } 67 off = fdt_node_offset_by_prop_value(blob, off, 68 "device_type", "cpu", 4); 69 } 70 debug ("%x core system found\n", num_cores); 71 debug ("deleted %d extra core entry entries from device tree\n", 72 del_cores); 73 } 74 #endif /* defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) */ 75 76 #if defined(CONFIG_HAS_FSL_DR_USB) || defined(CONFIG_HAS_FSL_MPH_USB) 77 static int fdt_fixup_usb_mode_phy_type(void *blob, const char *mode, 78 const char *phy_type, int start_offset) 79 { 80 const char *compat_dr = "fsl-usb2-dr"; 81 const char *compat_mph = "fsl-usb2-mph"; 82 const char *prop_mode = "dr_mode"; 83 const char *prop_type = "phy_type"; 84 const char *node_type = NULL; 85 int node_offset; 86 int err; 87 88 node_offset = fdt_node_offset_by_compatible(blob, 89 start_offset, compat_mph); 90 if (node_offset < 0) { 91 node_offset = fdt_node_offset_by_compatible(blob, 92 start_offset, compat_dr); 93 if (node_offset < 0) { 94 printf("WARNING: could not find compatible" 95 " node %s or %s: %s.\n", compat_mph, 96 compat_dr, fdt_strerror(node_offset)); 97 return -1; 98 } else 99 node_type = compat_dr; 100 } else 101 node_type = compat_mph; 102 103 if (mode) { 104 err = fdt_setprop(blob, node_offset, prop_mode, mode, 105 strlen(mode) + 1); 106 if (err < 0) 107 printf("WARNING: could not set %s for %s: %s.\n", 108 prop_mode, node_type, fdt_strerror(err)); 109 } 110 111 if (phy_type) { 112 err = fdt_setprop(blob, node_offset, prop_type, phy_type, 113 strlen(phy_type) + 1); 114 if (err < 0) 115 printf("WARNING: could not set %s for %s: %s.\n", 116 prop_type, node_type, fdt_strerror(err)); 117 } 118 119 return node_offset; 120 } 121 122 void fdt_fixup_dr_usb(void *blob, bd_t *bd) 123 { 124 const char *modes[] = { "host", "peripheral", "otg" }; 125 const char *phys[] = { "ulpi", "utmi" }; 126 int usb_mode_off = -1; 127 int usb_phy_off = -1; 128 char str[5]; 129 int i, j; 130 131 for (i = 1; i <= CONFIG_USB_MAX_CONTROLLER_COUNT; i++) { 132 const char *dr_mode_type = NULL; 133 const char *dr_phy_type = NULL; 134 int mode_idx = -1, phy_idx = -1; 135 snprintf(str, 5, "%s%d", "usb", i); 136 if (hwconfig(str)) { 137 for (j = 0; j < ARRAY_SIZE(modes); j++) { 138 if (hwconfig_subarg_cmp(str, "dr_mode", 139 modes[j])) { 140 mode_idx = j; 141 break; 142 } 143 } 144 145 for (j = 0; j < ARRAY_SIZE(phys); j++) { 146 if (hwconfig_subarg_cmp(str, "phy_type", 147 phys[j])) { 148 phy_idx = j; 149 break; 150 } 151 } 152 153 if (mode_idx < 0 && phy_idx < 0) { 154 printf("WARNING: invalid phy or mode\n"); 155 return; 156 } 157 158 if (mode_idx > -1) 159 dr_mode_type = modes[mode_idx]; 160 161 if (phy_idx > -1) 162 dr_phy_type = phys[phy_idx]; 163 } 164 165 usb_mode_off = fdt_fixup_usb_mode_phy_type(blob, 166 dr_mode_type, NULL, usb_mode_off); 167 168 if (usb_mode_off < 0) 169 return; 170 171 usb_phy_off = fdt_fixup_usb_mode_phy_type(blob, 172 NULL, dr_phy_type, usb_phy_off); 173 174 if (usb_phy_off < 0) 175 return; 176 } 177 } 178 #endif /* defined(CONFIG_HAS_FSL_DR_USB) || defined(CONFIG_HAS_FSL_MPH_USB) */ 179 180 /* 181 * update crypto node properties to a specified revision of the SEC 182 * called with sec_rev == 0 if not on an E processor 183 */ 184 #if CONFIG_SYS_FSL_SEC_COMPAT == 2 /* SEC 2.x/3.x */ 185 void fdt_fixup_crypto_node(void *blob, int sec_rev) 186 { 187 static const struct sec_rev_prop { 188 u32 sec_rev; 189 u32 num_channels; 190 u32 channel_fifo_len; 191 u32 exec_units_mask; 192 u32 descriptor_types_mask; 193 } sec_rev_prop_list [] = { 194 { 0x0200, 4, 24, 0x07e, 0x01010ebf }, /* SEC 2.0 */ 195 { 0x0201, 4, 24, 0x0fe, 0x012b0ebf }, /* SEC 2.1 */ 196 { 0x0202, 1, 24, 0x04c, 0x0122003f }, /* SEC 2.2 */ 197 { 0x0204, 4, 24, 0x07e, 0x012b0ebf }, /* SEC 2.4 */ 198 { 0x0300, 4, 24, 0x9fe, 0x03ab0ebf }, /* SEC 3.0 */ 199 { 0x0301, 4, 24, 0xbfe, 0x03ab0ebf }, /* SEC 3.1 */ 200 { 0x0303, 4, 24, 0x97c, 0x03a30abf }, /* SEC 3.3 */ 201 }; 202 static char compat_strlist[ARRAY_SIZE(sec_rev_prop_list) * 203 sizeof("fsl,secX.Y")]; 204 int crypto_node, sec_idx, err; 205 char *p; 206 u32 val; 207 208 /* locate crypto node based on lowest common compatible */ 209 crypto_node = fdt_node_offset_by_compatible(blob, -1, "fsl,sec2.0"); 210 if (crypto_node == -FDT_ERR_NOTFOUND) 211 return; 212 213 /* delete it if not on an E-processor */ 214 if (crypto_node > 0 && !sec_rev) { 215 fdt_del_node(blob, crypto_node); 216 return; 217 } 218 219 /* else we got called for possible uprev */ 220 for (sec_idx = 0; sec_idx < ARRAY_SIZE(sec_rev_prop_list); sec_idx++) 221 if (sec_rev_prop_list[sec_idx].sec_rev == sec_rev) 222 break; 223 224 if (sec_idx == ARRAY_SIZE(sec_rev_prop_list)) { 225 puts("warning: unknown SEC revision number\n"); 226 return; 227 } 228 229 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].num_channels); 230 err = fdt_setprop(blob, crypto_node, "fsl,num-channels", &val, 4); 231 if (err < 0) 232 printf("WARNING: could not set crypto property: %s\n", 233 fdt_strerror(err)); 234 235 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].descriptor_types_mask); 236 err = fdt_setprop(blob, crypto_node, "fsl,descriptor-types-mask", &val, 4); 237 if (err < 0) 238 printf("WARNING: could not set crypto property: %s\n", 239 fdt_strerror(err)); 240 241 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].exec_units_mask); 242 err = fdt_setprop(blob, crypto_node, "fsl,exec-units-mask", &val, 4); 243 if (err < 0) 244 printf("WARNING: could not set crypto property: %s\n", 245 fdt_strerror(err)); 246 247 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].channel_fifo_len); 248 err = fdt_setprop(blob, crypto_node, "fsl,channel-fifo-len", &val, 4); 249 if (err < 0) 250 printf("WARNING: could not set crypto property: %s\n", 251 fdt_strerror(err)); 252 253 val = 0; 254 while (sec_idx >= 0) { 255 p = compat_strlist + val; 256 val += sprintf(p, "fsl,sec%d.%d", 257 (sec_rev_prop_list[sec_idx].sec_rev & 0xff00) >> 8, 258 sec_rev_prop_list[sec_idx].sec_rev & 0x00ff) + 1; 259 sec_idx--; 260 } 261 err = fdt_setprop(blob, crypto_node, "compatible", &compat_strlist, val); 262 if (err < 0) 263 printf("WARNING: could not set crypto property: %s\n", 264 fdt_strerror(err)); 265 } 266 #elif CONFIG_SYS_FSL_SEC_COMPAT >= 4 /* SEC4 */ 267 static u8 caam_get_era(void) 268 { 269 static const struct { 270 u16 ip_id; 271 u8 maj_rev; 272 u8 era; 273 } caam_eras[] = { 274 {0x0A10, 1, 1}, 275 {0x0A10, 2, 2}, 276 {0x0A12, 1, 3}, 277 {0x0A14, 1, 3}, 278 {0x0A14, 2, 4}, 279 {0x0A16, 1, 4}, 280 {0x0A10, 3, 4}, 281 {0x0A11, 1, 4}, 282 {0x0A18, 1, 4}, 283 {0x0A11, 2, 5}, 284 {0x0A12, 2, 5}, 285 {0x0A13, 1, 5}, 286 {0x0A1C, 1, 5} 287 }; 288 289 ccsr_sec_t __iomem *sec = (void __iomem *)CONFIG_SYS_FSL_SEC_ADDR; 290 u32 secvid_ms = in_be32(&sec->secvid_ms); 291 u32 ccbvid = in_be32(&sec->ccbvid); 292 u16 ip_id = (secvid_ms & SEC_SECVID_MS_IPID_MASK) >> 293 SEC_SECVID_MS_IPID_SHIFT; 294 u8 maj_rev = (secvid_ms & SEC_SECVID_MS_MAJ_REV_MASK) >> 295 SEC_SECVID_MS_MAJ_REV_SHIFT; 296 u8 era = (ccbvid & SEC_CCBVID_ERA_MASK) >> SEC_CCBVID_ERA_SHIFT; 297 298 int i; 299 300 if (era) /* This is '0' prior to CAAM ERA-6 */ 301 return era; 302 303 for (i = 0; i < ARRAY_SIZE(caam_eras); i++) 304 if (caam_eras[i].ip_id == ip_id && 305 caam_eras[i].maj_rev == maj_rev) 306 return caam_eras[i].era; 307 308 return 0; 309 } 310 311 static void fdt_fixup_crypto_era(void *blob, u32 era) 312 { 313 int err; 314 int crypto_node; 315 316 crypto_node = fdt_path_offset(blob, "crypto"); 317 if (crypto_node < 0) { 318 printf("WARNING: Missing crypto node\n"); 319 return; 320 } 321 322 err = fdt_setprop(blob, crypto_node, "fsl,sec-era", &era, 323 sizeof(era)); 324 if (err < 0) { 325 printf("ERROR: could not set fsl,sec-era property: %s\n", 326 fdt_strerror(err)); 327 } 328 } 329 330 void fdt_fixup_crypto_node(void *blob, int sec_rev) 331 { 332 u8 era; 333 334 if (!sec_rev) { 335 fdt_del_node_and_alias(blob, "crypto"); 336 return; 337 } 338 339 /* Add SEC ERA information in compatible */ 340 era = caam_get_era(); 341 if (era) { 342 fdt_fixup_crypto_era(blob, era); 343 } else { 344 printf("WARNING: Unable to get ERA for CAAM rev: %d\n", 345 sec_rev); 346 } 347 } 348 #endif 349 350 int fdt_fixup_phy_connection(void *blob, int offset, phy_interface_t phyc) 351 { 352 return fdt_setprop_string(blob, offset, "phy-connection-type", 353 phy_string_for_interface(phyc)); 354 } 355 356 #ifdef CONFIG_SYS_SRIO 357 static inline void ft_disable_srio_port(void *blob, int srio_off, int port) 358 { 359 int off = fdt_node_offset_by_prop_value(blob, srio_off, 360 "cell-index", &port, 4); 361 if (off >= 0) { 362 off = fdt_setprop_string(blob, off, "status", "disabled"); 363 if (off > 0) 364 printf("WARNING unable to set status for fsl,srio " 365 "port %d: %s\n", port, fdt_strerror(off)); 366 } 367 } 368 369 static inline void ft_disable_rman(void *blob) 370 { 371 int off = fdt_node_offset_by_compatible(blob, -1, "fsl,rman"); 372 if (off >= 0) { 373 off = fdt_setprop_string(blob, off, "status", "disabled"); 374 if (off > 0) 375 printf("WARNING unable to set status for fsl,rman %s\n", 376 fdt_strerror(off)); 377 } 378 } 379 380 static inline void ft_disable_rmu(void *blob) 381 { 382 int off = fdt_node_offset_by_compatible(blob, -1, "fsl,srio-rmu"); 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 " 387 "fsl,srio-rmu %s\n", fdt_strerror(off)); 388 } 389 } 390 391 void ft_srio_setup(void *blob) 392 { 393 int srio1_used = 0, srio2_used = 0; 394 int srio_off; 395 396 /* search for srio node, if doesn't exist just return - nothing todo */ 397 srio_off = fdt_node_offset_by_compatible(blob, -1, "fsl,srio"); 398 if (srio_off < 0) 399 return ; 400 401 #ifdef CONFIG_SRIO1 402 if (is_serdes_configured(SRIO1)) 403 srio1_used = 1; 404 #endif 405 #ifdef CONFIG_SRIO2 406 if (is_serdes_configured(SRIO2)) 407 srio2_used = 1; 408 #endif 409 410 /* mark port1 disabled */ 411 if (!srio1_used) 412 ft_disable_srio_port(blob, srio_off, 1); 413 414 /* mark port2 disabled */ 415 if (!srio2_used) 416 ft_disable_srio_port(blob, srio_off, 2); 417 418 /* if both ports not used, disable controller, rmu and rman */ 419 if (!srio1_used && !srio2_used) { 420 fdt_setprop_string(blob, srio_off, "status", "disabled"); 421 422 ft_disable_rman(blob); 423 ft_disable_rmu(blob); 424 } 425 } 426 #endif 427