arch/powerpc/cpu/mpc85xx/fdt.c

   1 /*
   2  * Copyright 2007-2011 Freescale Semiconductor, Inc.
   3  *
   4  * (C) Copyright 2000
   5  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   6  *
   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/processor.h>
  30 #include <linux/ctype.h>
  31 #include <asm/io.h>
  32 #include <asm/fsl_portals.h>
  33 #ifdef CONFIG_FSL_ESDHC
  34 #include <fsl_esdhc.h>
  35 #endif
  36
  37 DECLARE_GLOBAL_DATA_PTR;
  38
  39 extern void ft_qe_setup(void *blob);
  40 extern void ft_fixup_num_cores(void *blob);
  41 extern void ft_srio_setup(void *blob);
  42
  43 #ifdef CONFIG_MP
  44 #include "mp.h"
  45
  46 void ft_fixup_cpu(void *blob, u64 memory_limit)
  47 {
  48         int off;
  49         ulong spin_tbl_addr = get_spin_phys_addr();
  50         u32 bootpg = determine_mp_bootpg();
  51         u32 id = get_my_id();
  52         const char *enable_method;
  53
  54         off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
  55         while (off != -FDT_ERR_NOTFOUND) {
  56                 u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
  57
  58                 if (reg) {
  59                         u64 val = *reg * SIZE_BOOT_ENTRY + spin_tbl_addr;
  60                         val = cpu_to_fdt32(val);
  61                         if (*reg == id) {
  62                                 fdt_setprop_string(blob, off, "status",
  63                                                                 "okay");
  64                         } else {
  65                                 fdt_setprop_string(blob, off, "status",
  66                                                                 "disabled");
  67                         }
  68
  69                         if (hold_cores_in_reset(0)) {
  70 #ifdef CONFIG_FSL_CORENET
  71                                 /* Cores held in reset, use BRR to release */
  72                                 enable_method = "fsl,brr-holdoff";
  73 #else
  74                                 /* Cores held in reset, use EEBPCR to release */
  75                                 enable_method = "fsl,eebpcr-holdoff";
  76 #endif
  77                         } else {
  78                                 /* Cores out of reset and in a spin-loop */
  79                                 enable_method = "spin-table";
  80
  81                                 fdt_setprop(blob, off, "cpu-release-addr",
  82                                                 &val, sizeof(val));
  83                         }
  84
  85                         fdt_setprop_string(blob, off, "enable-method",
  86                                                         enable_method);
  87                 } else {
  88                         printf ("cpu NULL\n");
  89                 }
  90                 off = fdt_node_offset_by_prop_value(blob, off,
  91                                 "device_type", "cpu", 4);
  92         }
  93
  94         /* Reserve the boot page so OSes dont use it */
  95         if ((u64)bootpg < memory_limit) {
  96                 off = fdt_add_mem_rsv(blob, bootpg, (u64)4096);
  97                 if (off < 0)
  98                         printf("%s: %s\n", __FUNCTION__, fdt_strerror(off));
  99         }
 100 }
 101 #endif
 102
 103 #ifdef CONFIG_SYS_FSL_CPC
 104 static inline void ft_fixup_l3cache(void *blob, int off)
 105 {
 106         u32 line_size, num_ways, size, num_sets;
 107         cpc_corenet_t *cpc = (void *)CONFIG_SYS_FSL_CPC_ADDR;
 108         u32 cfg0 = in_be32(&cpc->cpccfg0);
 109
 110         size = CPC_CFG0_SZ_K(cfg0) * 1024 * CONFIG_SYS_NUM_CPC;
 111         num_ways = CPC_CFG0_NUM_WAYS(cfg0);
 112         line_size = CPC_CFG0_LINE_SZ(cfg0);
 113         num_sets = size / (line_size * num_ways);
 114
 115         fdt_setprop(blob, off, "cache-unified", NULL, 0);
 116         fdt_setprop_cell(blob, off, "cache-block-size", line_size);
 117         fdt_setprop_cell(blob, off, "cache-size", size);
 118         fdt_setprop_cell(blob, off, "cache-sets", num_sets);
 119         fdt_setprop_cell(blob, off, "cache-level", 3);
 120 #ifdef CONFIG_SYS_CACHE_STASHING
 121         fdt_setprop_cell(blob, off, "cache-stash-id", 1);
 122 #endif
 123 }
 124 #else
 125 #define ft_fixup_l3cache(x, y)
 126 #endif
 127
 128 #if defined(CONFIG_L2_CACHE)
 129 /* return size in kilobytes */
 130 static inline u32 l2cache_size(void)
 131 {
 132         volatile ccsr_l2cache_t *l2cache = (void *)CONFIG_SYS_MPC85xx_L2_ADDR;
 133         volatile u32 l2siz_field = (l2cache->l2ctl >> 28) & 0x3;
 134         u32 ver = SVR_SOC_VER(get_svr());
 135
 136         switch (l2siz_field) {
 137         case 0x0:
 138                 break;
 139         case 0x1:
 140                 if (ver == SVR_8540 || ver == SVR_8560   ||
 141                     ver == SVR_8541 || ver == SVR_8541_E ||
 142                     ver == SVR_8555 || ver == SVR_8555_E)
 143                         return 128;
 144                 else
 145                         return 256;
 146                 break;
 147         case 0x2:
 148                 if (ver == SVR_8540 || ver == SVR_8560   ||
 149                     ver == SVR_8541 || ver == SVR_8541_E ||
 150                     ver == SVR_8555 || ver == SVR_8555_E)
 151                         return 256;
 152                 else
 153                         return 512;
 154                 break;
 155         case 0x3:
 156                 return 1024;
 157                 break;
 158         }
 159
 160         return 0;
 161 }
 162
 163 static inline void ft_fixup_l2cache(void *blob)
 164 {
 165         int len, off;
 166         u32 *ph;
 167         struct cpu_type *cpu = identify_cpu(SVR_SOC_VER(get_svr()));
 168         char compat_buf[38];
 169
 170         const u32 line_size = 32;
 171         const u32 num_ways = 8;
 172         const u32 size = l2cache_size() * 1024;
 173         const u32 num_sets = size / (line_size * num_ways);
 174
 175         off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
 176         if (off < 0) {
 177                 debug("no cpu node fount\n");
 178                 return;
 179         }
 180
 181         ph = (u32 *)fdt_getprop(blob, off, "next-level-cache", 0);
 182
 183         if (ph == NULL) {
 184                 debug("no next-level-cache property\n");
 185                 return ;
 186         }
 187
 188         off = fdt_node_offset_by_phandle(blob, *ph);
 189         if (off < 0) {
 190                 printf("%s: %s\n", __func__, fdt_strerror(off));
 191                 return ;
 192         }
 193
 194         if (cpu) {
 195                 if (isdigit(cpu->name[0]))
 196                         len = sprintf(compat_buf,
 197                                 "fsl,mpc%s-l2-cache-controller", cpu->name);
 198                 else
 199                         len = sprintf(compat_buf,
 200                                 "fsl,%c%s-l2-cache-controller",
 201                                 tolower(cpu->name[0]), cpu->name + 1);
 202
 203                 sprintf(&compat_buf[len + 1], "cache");
 204         }
 205         fdt_setprop(blob, off, "cache-unified", NULL, 0);
 206         fdt_setprop_cell(blob, off, "cache-block-size", line_size);
 207         fdt_setprop_cell(blob, off, "cache-size", size);
 208         fdt_setprop_cell(blob, off, "cache-sets", num_sets);
 209         fdt_setprop_cell(blob, off, "cache-level", 2);
 210         fdt_setprop(blob, off, "compatible", compat_buf, sizeof(compat_buf));
 211
 212         /* we dont bother w/L3 since no platform of this type has one */
 213 }
 214 #elif defined(CONFIG_BACKSIDE_L2_CACHE)
 215 static inline void ft_fixup_l2cache(void *blob)
 216 {
 217         int off, l2_off, l3_off = -1;
 218         u32 *ph;
 219         u32 l2cfg0 = mfspr(SPRN_L2CFG0);
 220         u32 size, line_size, num_ways, num_sets;
 221
 222         size = (l2cfg0 & 0x3fff) * 64 * 1024;
 223         num_ways = ((l2cfg0 >> 14) & 0x1f) + 1;
 224         line_size = (((l2cfg0 >> 23) & 0x3) + 1) * 32;
 225         num_sets = size / (line_size * num_ways);
 226
 227         off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
 228
 229         while (off != -FDT_ERR_NOTFOUND) {
 230                 ph = (u32 *)fdt_getprop(blob, off, "next-level-cache", 0);
 231
 232                 if (ph == NULL) {
 233                         debug("no next-level-cache property\n");
 234                         goto next;
 235                 }
 236
 237                 l2_off = fdt_node_offset_by_phandle(blob, *ph);
 238                 if (l2_off < 0) {
 239                         printf("%s: %s\n", __func__, fdt_strerror(off));
 240                         goto next;
 241                 }
 242
 243 #ifdef CONFIG_SYS_CACHE_STASHING
 244                 {
 245                         u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
 246                         if (reg)
 247                                 fdt_setprop_cell(blob, l2_off, "cache-stash-id",
 248                                          (*reg * 2) + 32 + 1);
 249                 }
 250 #endif
 251
 252                 fdt_setprop(blob, l2_off, "cache-unified", NULL, 0);
 253                 fdt_setprop_cell(blob, l2_off, "cache-block-size", line_size);
 254                 fdt_setprop_cell(blob, l2_off, "cache-size", size);
 255                 fdt_setprop_cell(blob, l2_off, "cache-sets", num_sets);
 256                 fdt_setprop_cell(blob, l2_off, "cache-level", 2);
 257                 fdt_setprop(blob, l2_off, "compatible", "cache", 6);
 258
 259                 if (l3_off < 0) {
 260                         ph = (u32 *)fdt_getprop(blob, l2_off, "next-level-cache", 0);
 261
 262                         if (ph == NULL) {
 263                                 debug("no next-level-cache property\n");
 264                                 goto next;
 265                         }
 266                         l3_off = *ph;
 267                 }
 268 next:
 269                 off = fdt_node_offset_by_prop_value(blob, off,
 270                                 "device_type", "cpu", 4);
 271         }
 272         if (l3_off > 0) {
 273                 l3_off = fdt_node_offset_by_phandle(blob, l3_off);
 274                 if (l3_off < 0) {
 275                         printf("%s: %s\n", __func__, fdt_strerror(off));
 276                         return ;
 277                 }
 278                 ft_fixup_l3cache(blob, l3_off);
 279         }
 280 }
 281 #else
 282 #define ft_fixup_l2cache(x)
 283 #endif
 284
 285 static inline void ft_fixup_cache(void *blob)
 286 {
 287         int off;
 288
 289         off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
 290
 291         while (off != -FDT_ERR_NOTFOUND) {
 292                 u32 l1cfg0 = mfspr(SPRN_L1CFG0);
 293                 u32 l1cfg1 = mfspr(SPRN_L1CFG1);
 294                 u32 isize, iline_size, inum_sets, inum_ways;
 295                 u32 dsize, dline_size, dnum_sets, dnum_ways;
 296
 297                 /* d-side config */
 298                 dsize = (l1cfg0 & 0x7ff) * 1024;
 299                 dnum_ways = ((l1cfg0 >> 11) & 0xff) + 1;
 300                 dline_size = (((l1cfg0 >> 23) & 0x3) + 1) * 32;
 301                 dnum_sets = dsize / (dline_size * dnum_ways);
 302
 303                 fdt_setprop_cell(blob, off, "d-cache-block-size", dline_size);
 304                 fdt_setprop_cell(blob, off, "d-cache-size", dsize);
 305                 fdt_setprop_cell(blob, off, "d-cache-sets", dnum_sets);
 306
 307 #ifdef CONFIG_SYS_CACHE_STASHING
 308                 {
 309                         u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
 310                         if (reg)
 311                                 fdt_setprop_cell(blob, off, "cache-stash-id",
 312                                          (*reg * 2) + 32 + 0);
 313                 }
 314 #endif
 315
 316                 /* i-side config */
 317                 isize = (l1cfg1 & 0x7ff) * 1024;
 318                 inum_ways = ((l1cfg1 >> 11) & 0xff) + 1;
 319                 iline_size = (((l1cfg1 >> 23) & 0x3) + 1) * 32;
 320                 inum_sets = isize / (iline_size * inum_ways);
 321
 322                 fdt_setprop_cell(blob, off, "i-cache-block-size", iline_size);
 323                 fdt_setprop_cell(blob, off, "i-cache-size", isize);
 324                 fdt_setprop_cell(blob, off, "i-cache-sets", inum_sets);
 325
 326                 off = fdt_node_offset_by_prop_value(blob, off,
 327                                 "device_type", "cpu", 4);
 328         }
 329
 330         ft_fixup_l2cache(blob);
 331 }
 332
 333
 334 void fdt_add_enet_stashing(void *fdt)
 335 {
 336         do_fixup_by_compat(fdt, "gianfar", "bd-stash", NULL, 0, 1);
 337
 338         do_fixup_by_compat_u32(fdt, "gianfar", "rx-stash-len", 96, 1);
 339
 340         do_fixup_by_compat_u32(fdt, "gianfar", "rx-stash-idx", 0, 1);
 341 }
 342
 343 #if defined(CONFIG_SYS_DPAA_FMAN) || defined(CONFIG_SYS_DPAA_PME)
 344 static void ft_fixup_clks(void *blob, const char *compat, u32 offset,
 345                           unsigned long freq)
 346 {
 347         phys_addr_t phys = offset + CONFIG_SYS_CCSRBAR_PHYS;
 348         int off = fdt_node_offset_by_compat_reg(blob, compat, phys);
 349
 350         if (off >= 0) {
 351                 off = fdt_setprop_cell(blob, off, "clock-frequency", freq);
 352                 if (off > 0)
 353                         printf("WARNING enable to set clock-frequency "
 354                                 "for %s: %s\n", compat, fdt_strerror(off));
 355         }
 356 }
 357
 358 static void ft_fixup_dpaa_clks(void *blob)
 359 {
 360         sys_info_t sysinfo;
 361
 362         get_sys_info(&sysinfo);
 363         ft_fixup_clks(blob, "fsl,fman", CONFIG_SYS_FSL_FM1_OFFSET,
 364                         sysinfo.freqFMan[0]);
 365
 366 #if (CONFIG_SYS_NUM_FMAN == 2)
 367         ft_fixup_clks(blob, "fsl,fman", CONFIG_SYS_FSL_FM2_OFFSET,
 368                         sysinfo.freqFMan[1]);
 369 #endif
 370
 371 #ifdef CONFIG_SYS_DPAA_PME
 372         do_fixup_by_compat_u32(blob, "fsl,pme",
 373                 "clock-frequency", sysinfo.freqPME, 1);
 374 #endif
 375 }
 376 #else
 377 #define ft_fixup_dpaa_clks(x)
 378 #endif
 379
 380 #ifdef CONFIG_QE
 381 static void ft_fixup_qe_snum(void *blob)
 382 {
 383         unsigned int svr;
 384
 385         svr = mfspr(SPRN_SVR);
 386         if (SVR_SOC_VER(svr) == SVR_8569_E) {
 387                 if(IS_SVR_REV(svr, 1, 0))
 388                         do_fixup_by_compat_u32(blob, "fsl,qe",
 389                                 "fsl,qe-num-snums", 46, 1);
 390                 else
 391                         do_fixup_by_compat_u32(blob, "fsl,qe",
 392                                 "fsl,qe-num-snums", 76, 1);
 393         }
 394 }
 395 #endif
 396
 397 void ft_cpu_setup(void *blob, bd_t *bd)
 398 {
 399         int off;
 400         int val;
 401         sys_info_t sysinfo;
 402
 403         /* delete crypto node if not on an E-processor */
 404         if (!IS_E_PROCESSOR(get_svr()))
 405                 fdt_fixup_crypto_node(blob, 0);
 406
 407         fdt_fixup_ethernet(blob);
 408
 409         fdt_add_enet_stashing(blob);
 410
 411         do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
 412                 "timebase-frequency", get_tbclk(), 1);
 413         do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
 414                 "bus-frequency", bd->bi_busfreq, 1);
 415         get_sys_info(&sysinfo);
 416         off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
 417         while (off != -FDT_ERR_NOTFOUND) {
 418                 u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
 419                 val = cpu_to_fdt32(sysinfo.freqProcessor[*reg]);
 420                 fdt_setprop(blob, off, "clock-frequency", &val, 4);
 421                 off = fdt_node_offset_by_prop_value(blob, off, "device_type",
 422                                                         "cpu", 4);
 423         }
 424         do_fixup_by_prop_u32(blob, "device_type", "soc", 4,
 425                 "bus-frequency", bd->bi_busfreq, 1);
 426
 427         do_fixup_by_compat_u32(blob, "fsl,pq3-localbus",
 428                 "bus-frequency", gd->lbc_clk, 1);
 429         do_fixup_by_compat_u32(blob, "fsl,elbc",
 430                 "bus-frequency", gd->lbc_clk, 1);
 431 #ifdef CONFIG_QE
 432         ft_qe_setup(blob);
 433         ft_fixup_qe_snum(blob);
 434 #endif
 435
 436 #ifdef CONFIG_SYS_NS16550
 437         do_fixup_by_compat_u32(blob, "ns16550",
 438                 "clock-frequency", CONFIG_SYS_NS16550_CLK, 1);
 439 #endif
 440
 441 #ifdef CONFIG_CPM2
 442         do_fixup_by_compat_u32(blob, "fsl,cpm2-scc-uart",
 443                 "current-speed", bd->bi_baudrate, 1);
 444
 445         do_fixup_by_compat_u32(blob, "fsl,cpm2-brg",
 446                 "clock-frequency", bd->bi_brgfreq, 1);
 447 #endif
 448
 449 #ifdef CONFIG_FSL_CORENET
 450         do_fixup_by_compat_u32(blob, "fsl,qoriq-clockgen-1.0",
 451                 "clock-frequency", CONFIG_SYS_CLK_FREQ, 1);
 452 #endif
 453
 454         fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
 455
 456 #ifdef CONFIG_MP
 457         ft_fixup_cpu(blob, (u64)bd->bi_memstart + (u64)bd->bi_memsize);
 458         ft_fixup_num_cores(blob);
 459 #endif
 460
 461         ft_fixup_cache(blob);
 462
 463 #if defined(CONFIG_FSL_ESDHC)
 464         fdt_fixup_esdhc(blob, bd);
 465 #endif
 466
 467         ft_fixup_dpaa_clks(blob);
 468
 469 #if defined(CONFIG_SYS_BMAN_MEM_PHYS)
 470         fdt_portal(blob, "fsl,bman-portal", "bman-portals",
 471                         (u64)CONFIG_SYS_BMAN_MEM_PHYS,
 472                         CONFIG_SYS_BMAN_MEM_SIZE);
 473 #endif
 474
 475 #if defined(CONFIG_SYS_QMAN_MEM_PHYS)
 476         fdt_portal(blob, "fsl,qman-portal", "qman-portals",
 477                         (u64)CONFIG_SYS_QMAN_MEM_PHYS,
 478                         CONFIG_SYS_QMAN_MEM_SIZE);
 479
 480         fdt_fixup_qportals(blob);
 481 #endif
 482
 483 #ifdef CONFIG_SYS_SRIO
 484         ft_srio_setup(blob);
 485 #endif
 486 }