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 dr_mode_type = modes[mode_idx]; 171 dr_phy_type = phys[phy_idx]; 172 173 /* use usb_dr_mode and usb_phy_type if 174 usb1_defined = 0; these variables are to 175 be deprecated */ 176 if (!strcmp(str, "usb1")) 177 usb1_defined = 1; 178 179 if (mode_idx < 0 && phy_idx < 0) { 180 printf("WARNING: invalid phy or mode\n"); 181 return; 182 } 183 } 184 185 usb_mode_off = fdt_fixup_usb_mode_phy_type(blob, 186 dr_mode_type, NULL, usb_mode_off); 187 188 if (usb_mode_off < 0) 189 return; 190 191 usb_phy_off = fdt_fixup_usb_mode_phy_type(blob, 192 NULL, dr_phy_type, usb_phy_off); 193 194 if (usb_phy_off < 0) 195 return; 196 } 197 198 if (!usb1_defined) { 199 int usb_off = -1; 200 mode = getenv("usb_dr_mode"); 201 phy_type = getenv("usb_phy_type"); 202 if (mode || phy_type) { 203 printf("WARNING: usb_dr_mode and usb_phy_type " 204 "are to be deprecated soon. Use " 205 "hwconfig to set these values instead!!\n"); 206 fdt_fixup_usb_mode_phy_type(blob, mode, 207 phy_type, usb_off); 208 } 209 } 210 } 211 #endif /* defined(CONFIG_HAS_FSL_DR_USB) || defined(CONFIG_HAS_FSL_MPH_USB) */ 212 213 /* 214 * update crypto node properties to a specified revision of the SEC 215 * called with sec_rev == 0 if not on an E processor 216 */ 217 #if CONFIG_SYS_FSL_SEC_COMPAT == 2 /* SEC 2.x/3.x */ 218 void fdt_fixup_crypto_node(void *blob, int sec_rev) 219 { 220 static const struct sec_rev_prop { 221 u32 sec_rev; 222 u32 num_channels; 223 u32 channel_fifo_len; 224 u32 exec_units_mask; 225 u32 descriptor_types_mask; 226 } sec_rev_prop_list [] = { 227 { 0x0200, 4, 24, 0x07e, 0x01010ebf }, /* SEC 2.0 */ 228 { 0x0201, 4, 24, 0x0fe, 0x012b0ebf }, /* SEC 2.1 */ 229 { 0x0202, 1, 24, 0x04c, 0x0122003f }, /* SEC 2.2 */ 230 { 0x0204, 4, 24, 0x07e, 0x012b0ebf }, /* SEC 2.4 */ 231 { 0x0300, 4, 24, 0x9fe, 0x03ab0ebf }, /* SEC 3.0 */ 232 { 0x0301, 4, 24, 0xbfe, 0x03ab0ebf }, /* SEC 3.1 */ 233 { 0x0303, 4, 24, 0x97c, 0x03a30abf }, /* SEC 3.3 */ 234 }; 235 static char compat_strlist[ARRAY_SIZE(sec_rev_prop_list) * 236 sizeof("fsl,secX.Y")]; 237 int crypto_node, sec_idx, err; 238 char *p; 239 u32 val; 240 241 /* locate crypto node based on lowest common compatible */ 242 crypto_node = fdt_node_offset_by_compatible(blob, -1, "fsl,sec2.0"); 243 if (crypto_node == -FDT_ERR_NOTFOUND) 244 return; 245 246 /* delete it if not on an E-processor */ 247 if (crypto_node > 0 && !sec_rev) { 248 fdt_del_node(blob, crypto_node); 249 return; 250 } 251 252 /* else we got called for possible uprev */ 253 for (sec_idx = 0; sec_idx < ARRAY_SIZE(sec_rev_prop_list); sec_idx++) 254 if (sec_rev_prop_list[sec_idx].sec_rev == sec_rev) 255 break; 256 257 if (sec_idx == ARRAY_SIZE(sec_rev_prop_list)) { 258 puts("warning: unknown SEC revision number\n"); 259 return; 260 } 261 262 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].num_channels); 263 err = fdt_setprop(blob, crypto_node, "fsl,num-channels", &val, 4); 264 if (err < 0) 265 printf("WARNING: could not set crypto property: %s\n", 266 fdt_strerror(err)); 267 268 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].descriptor_types_mask); 269 err = fdt_setprop(blob, crypto_node, "fsl,descriptor-types-mask", &val, 4); 270 if (err < 0) 271 printf("WARNING: could not set crypto property: %s\n", 272 fdt_strerror(err)); 273 274 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].exec_units_mask); 275 err = fdt_setprop(blob, crypto_node, "fsl,exec-units-mask", &val, 4); 276 if (err < 0) 277 printf("WARNING: could not set crypto property: %s\n", 278 fdt_strerror(err)); 279 280 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].channel_fifo_len); 281 err = fdt_setprop(blob, crypto_node, "fsl,channel-fifo-len", &val, 4); 282 if (err < 0) 283 printf("WARNING: could not set crypto property: %s\n", 284 fdt_strerror(err)); 285 286 val = 0; 287 while (sec_idx >= 0) { 288 p = compat_strlist + val; 289 val += sprintf(p, "fsl,sec%d.%d", 290 (sec_rev_prop_list[sec_idx].sec_rev & 0xff00) >> 8, 291 sec_rev_prop_list[sec_idx].sec_rev & 0x00ff) + 1; 292 sec_idx--; 293 } 294 err = fdt_setprop(blob, crypto_node, "compatible", &compat_strlist, val); 295 if (err < 0) 296 printf("WARNING: could not set crypto property: %s\n", 297 fdt_strerror(err)); 298 } 299 #elif CONFIG_SYS_FSL_SEC_COMPAT >= 4 /* SEC4 */ 300 void fdt_fixup_crypto_node(void *blob, int sec_rev) 301 { 302 if (!sec_rev) 303 fdt_del_node_and_alias(blob, "crypto"); 304 } 305 #endif 306 307 int fdt_fixup_phy_connection(void *blob, int offset, phy_interface_t phyc) 308 { 309 return fdt_setprop_string(blob, offset, "phy-connection-type", 310 phy_string_for_interface(phyc)); 311 } 312 313 #ifdef CONFIG_SYS_SRIO 314 static inline void ft_disable_srio_port(void *blob, int srio_off, int port) 315 { 316 int off = fdt_node_offset_by_prop_value(blob, srio_off, 317 "cell-index", &port, 4); 318 if (off >= 0) { 319 off = fdt_setprop_string(blob, off, "status", "disabled"); 320 if (off > 0) 321 printf("WARNING unable to set status for fsl,srio " 322 "port %d: %s\n", port, fdt_strerror(off)); 323 } 324 } 325 326 static inline void ft_disable_rman(void *blob) 327 { 328 int off = fdt_node_offset_by_compatible(blob, -1, "fsl,rman"); 329 if (off >= 0) { 330 off = fdt_setprop_string(blob, off, "status", "disabled"); 331 if (off > 0) 332 printf("WARNING unable to set status for fsl,rman %s\n", 333 fdt_strerror(off)); 334 } 335 } 336 337 static inline void ft_disable_rmu(void *blob) 338 { 339 int off = fdt_node_offset_by_compatible(blob, -1, "fsl,srio-rmu"); 340 if (off >= 0) { 341 off = fdt_setprop_string(blob, off, "status", "disabled"); 342 if (off > 0) 343 printf("WARNING unable to set status for " 344 "fsl,srio-rmu %s\n", fdt_strerror(off)); 345 } 346 } 347 348 void ft_srio_setup(void *blob) 349 { 350 int srio1_used = 0, srio2_used = 0; 351 int srio_off; 352 353 /* search for srio node, if doesn't exist just return - nothing todo */ 354 srio_off = fdt_node_offset_by_compatible(blob, -1, "fsl,srio"); 355 if (srio_off < 0) 356 return ; 357 358 #ifdef CONFIG_SRIO1 359 if (is_serdes_configured(SRIO1)) 360 srio1_used = 1; 361 #endif 362 #ifdef CONFIG_SRIO2 363 if (is_serdes_configured(SRIO2)) 364 srio2_used = 1; 365 #endif 366 367 /* mark port1 disabled */ 368 if (!srio1_used) 369 ft_disable_srio_port(blob, srio_off, 1); 370 371 /* mark port2 disabled */ 372 if (!srio2_used) 373 ft_disable_srio_port(blob, srio_off, 2); 374 375 /* if both ports not used, disable controller, rmu and rman */ 376 if (!srio1_used && !srio2_used) { 377 fdt_setprop_string(blob, srio_off, "status", "disabled"); 378 379 ft_disable_rman(blob); 380 ft_disable_rmu(blob); 381 } 382 } 383 #endif 384