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1 /*
2  * Copyright 2007 Freescale Semiconductor, Inc.
3  *
4  * See file CREDITS for list of people who contributed to this
5  * project.
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License as
9  * published by the Free Software Foundation; either version 2 of
10  * the License, or (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20  * MA 02111-1307 USA
21  */
22
23 #include <common.h>
24 #include <command.h>
25 #include <pci.h>
26 #include <asm/processor.h>
27 #include <asm/immap_85xx.h>
28 #include <asm/immap_fsl_pci.h>
29 #include <asm/io.h>
30 #include <spd.h>
31 #include <miiphy.h>
32 #include <libfdt.h>
33 #include <fdt_support.h>
34
35 #include "../common/pixis.h"
36
37 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
38 extern void ddr_enable_ecc(unsigned int dram_size);
39 #endif
40
41 extern long int spd_sdram(void);
42
43 void sdram_init(void);
44
45 int board_early_init_f (void)
46 {
47         return 0;
48 }
49
50 int checkboard (void)
51 {
52         volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);
53         volatile ccsr_lbc_t *lbc = (void *)(CFG_MPC85xx_LBC_ADDR);
54         volatile ccsr_local_ecm_t *ecm = (void *)(CFG_MPC85xx_ECM_ADDR);
55
56         if ((uint)&gur->porpllsr != 0xe00e0000) {
57                 printf("immap size error %x\n",&gur->porpllsr);
58         }
59         printf ("Board: MPC8544DS\n");
60
61         lbc->ltesr = 0xffffffff;        /* Clear LBC error interrupts */
62         lbc->lteir = 0xffffffff;        /* Enable LBC error interrupts */
63         ecm->eedr = 0xffffffff;         /* Clear ecm errors */
64         ecm->eeer = 0xffffffff;         /* Enable ecm errors */
65
66         return 0;
67 }
68
69 long int
70 initdram(int board_type)
71 {
72         long dram_size = 0;
73
74         puts("Initializing\n");
75
76         dram_size = spd_sdram();
77
78 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
79         /*
80          * Initialize and enable DDR ECC.
81          */
82         ddr_enable_ecc(dram_size);
83 #endif
84         puts("    DDR: ");
85         return dram_size;
86 }
87
88 #if defined(CFG_DRAM_TEST)
89 int
90 testdram(void)
91 {
92         uint *pstart = (uint *) CFG_MEMTEST_START;
93         uint *pend = (uint *) CFG_MEMTEST_END;
94         uint *p;
95
96         printf("Testing DRAM from 0x%08x to 0x%08x\n",
97                CFG_MEMTEST_START,
98                CFG_MEMTEST_END);
99
100         printf("DRAM test phase 1:\n");
101         for (p = pstart; p < pend; p++)
102                 *p = 0xaaaaaaaa;
103
104         for (p = pstart; p < pend; p++) {
105                 if (*p != 0xaaaaaaaa) {
106                         printf ("DRAM test fails at: %08x\n", (uint) p);
107                         return 1;
108                 }
109         }
110
111         printf("DRAM test phase 2:\n");
112         for (p = pstart; p < pend; p++)
113                 *p = 0x55555555;
114
115         for (p = pstart; p < pend; p++) {
116                 if (*p != 0x55555555) {
117                         printf ("DRAM test fails at: %08x\n", (uint) p);
118                         return 1;
119                 }
120         }
121
122         printf("DRAM test passed.\n");
123         return 0;
124 }
125 #endif
126
127 #ifdef CONFIG_PCI1
128 static struct pci_controller pci1_hose;
129 #endif
130
131 #ifdef CONFIG_PCIE1
132 static struct pci_controller pcie1_hose;
133 #endif
134
135 #ifdef CONFIG_PCIE2
136 static struct pci_controller pcie2_hose;
137 #endif
138
139 #ifdef CONFIG_PCIE3
140 static struct pci_controller pcie3_hose;
141 #endif
142
143 int first_free_busno=0;
144
145 void
146 pci_init_board(void)
147 {
148         volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);
149         uint devdisr = gur->devdisr;
150         uint io_sel = (gur->pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;
151         uint host_agent = (gur->porbmsr & MPC85xx_PORBMSR_HA) >> 16;
152
153         debug ("   pci_init_board: devdisr=%x, io_sel=%x, host_agent=%x\n",
154                 devdisr, io_sel, host_agent);
155
156         if (io_sel & 1) {
157                 if (!(gur->pordevsr & MPC85xx_PORDEVSR_SGMII1_DIS))
158                         printf ("    eTSEC1 is in sgmii mode.\n");
159                 if (!(gur->pordevsr & MPC85xx_PORDEVSR_SGMII3_DIS))
160                         printf ("    eTSEC3 is in sgmii mode.\n");
161         }
162
163 #ifdef CONFIG_PCIE3
164 {
165         volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCIE3_ADDR;
166         extern void fsl_pci_init(struct pci_controller *hose);
167         struct pci_controller *hose = &pcie3_hose;
168         int pcie_ep = (host_agent == 3);
169         int pcie_configured  = io_sel >= 1;
170
171         if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
172                 printf ("\n    PCIE3 connected to ULI as %s (base address %x)",
173                         pcie_ep ? "End Point" : "Root Complex",
174                         (uint)pci);
175                 if (pci->pme_msg_det) {
176                         pci->pme_msg_det = 0xffffffff;
177                         debug (" with errors.  Clearing.  Now 0x%08x",pci->pme_msg_det);
178                 }
179                 printf ("\n");
180
181                 /* inbound */
182                 pci_set_region(hose->regions + 0,
183                                CFG_PCI_MEMORY_BUS,
184                                CFG_PCI_MEMORY_PHYS,
185                                CFG_PCI_MEMORY_SIZE,
186                                PCI_REGION_MEM | PCI_REGION_MEMORY);
187
188                 /* outbound memory */
189                 pci_set_region(hose->regions + 1,
190                                CFG_PCIE3_MEM_BASE,
191                                CFG_PCIE3_MEM_PHYS,
192                                CFG_PCIE3_MEM_SIZE,
193                                PCI_REGION_MEM);
194
195                 /* outbound io */
196                 pci_set_region(hose->regions + 2,
197                                CFG_PCIE3_IO_BASE,
198                                CFG_PCIE3_IO_PHYS,
199                                CFG_PCIE3_IO_SIZE,
200                                PCI_REGION_IO);
201
202                 hose->region_count = 3;
203 #ifdef CFG_PCIE3_MEM_BASE2
204                 /* outbound memory */
205                 pci_set_region(hose->regions + 3,
206                                CFG_PCIE3_MEM_BASE2,
207                                CFG_PCIE3_MEM_PHYS2,
208                                CFG_PCIE3_MEM_SIZE2,
209                                PCI_REGION_MEM);
210                 hose->region_count++;
211 #endif
212                 hose->first_busno=first_free_busno;
213                 pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
214
215                 fsl_pci_init(hose);
216
217                 first_free_busno=hose->last_busno+1;
218                 printf ("    PCIE3 on bus %02x - %02x\n",
219                         hose->first_busno,hose->last_busno);
220
221                 /*
222                  * Activate ULI1575 legacy chip by performing a fake
223                  * memory access.  Needed to make ULI RTC work.
224                  */
225                 in_be32((u32 *)CFG_PCIE3_MEM_BASE);
226         } else {
227                 printf ("    PCIE3: disabled\n");
228         }
229
230  }
231 #else
232         gur->devdisr |= MPC85xx_DEVDISR_PCIE3; /* disable */
233 #endif
234
235 #ifdef CONFIG_PCIE1
236  {
237         volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCIE1_ADDR;
238         extern void fsl_pci_init(struct pci_controller *hose);
239         struct pci_controller *hose = &pcie1_hose;
240         int pcie_ep = (host_agent == 5);
241         int pcie_configured  = io_sel & 6;
242
243         if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
244                 printf ("\n    PCIE1 connected to Slot2 as %s (base address %x)",
245                         pcie_ep ? "End Point" : "Root Complex",
246                         (uint)pci);
247                 if (pci->pme_msg_det) {
248                         pci->pme_msg_det = 0xffffffff;
249                         debug (" with errors.  Clearing.  Now 0x%08x",pci->pme_msg_det);
250                 }
251                 printf ("\n");
252
253                 /* inbound */
254                 pci_set_region(hose->regions + 0,
255                                CFG_PCI_MEMORY_BUS,
256                                CFG_PCI_MEMORY_PHYS,
257                                CFG_PCI_MEMORY_SIZE,
258                                PCI_REGION_MEM | PCI_REGION_MEMORY);
259
260                 /* outbound memory */
261                 pci_set_region(hose->regions + 1,
262                                CFG_PCIE1_MEM_BASE,
263                                CFG_PCIE1_MEM_PHYS,
264                                CFG_PCIE1_MEM_SIZE,
265                                PCI_REGION_MEM);
266
267                 /* outbound io */
268                 pci_set_region(hose->regions + 2,
269                                CFG_PCIE1_IO_BASE,
270                                CFG_PCIE1_IO_PHYS,
271                                CFG_PCIE1_IO_SIZE,
272                                PCI_REGION_IO);
273
274                 hose->region_count = 3;
275 #ifdef CFG_PCIE1_MEM_BASE2
276                 /* outbound memory */
277                 pci_set_region(hose->regions + 3,
278                                CFG_PCIE1_MEM_BASE2,
279                                CFG_PCIE1_MEM_PHYS2,
280                                CFG_PCIE1_MEM_SIZE2,
281                                PCI_REGION_MEM);
282                 hose->region_count++;
283 #endif
284                 hose->first_busno=first_free_busno;
285
286                 pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
287
288                 fsl_pci_init(hose);
289
290                 first_free_busno=hose->last_busno+1;
291                 printf("    PCIE1 on bus %02x - %02x\n",
292                        hose->first_busno,hose->last_busno);
293
294         } else {
295                 printf ("    PCIE1: disabled\n");
296         }
297
298  }
299 #else
300         gur->devdisr |= MPC85xx_DEVDISR_PCIE; /* disable */
301 #endif
302
303 #ifdef CONFIG_PCIE2
304  {
305         volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCIE2_ADDR;
306         extern void fsl_pci_init(struct pci_controller *hose);
307         struct pci_controller *hose = &pcie2_hose;
308         int pcie_ep = (host_agent == 3);
309         int pcie_configured  = io_sel & 4;
310
311         if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
312                 printf ("\n    PCIE2 connected to Slot 1 as %s (base address %x)",
313                         pcie_ep ? "End Point" : "Root Complex",
314                         (uint)pci);
315                 if (pci->pme_msg_det) {
316                         pci->pme_msg_det = 0xffffffff;
317                         debug (" with errors.  Clearing.  Now 0x%08x",pci->pme_msg_det);
318                 }
319                 printf ("\n");
320
321                 /* inbound */
322                 pci_set_region(hose->regions + 0,
323                                CFG_PCI_MEMORY_BUS,
324                                CFG_PCI_MEMORY_PHYS,
325                                CFG_PCI_MEMORY_SIZE,
326                                PCI_REGION_MEM | PCI_REGION_MEMORY);
327
328                 /* outbound memory */
329                 pci_set_region(hose->regions + 1,
330                                CFG_PCIE2_MEM_BASE,
331                                CFG_PCIE2_MEM_PHYS,
332                                CFG_PCIE2_MEM_SIZE,
333                                PCI_REGION_MEM);
334
335                 /* outbound io */
336                 pci_set_region(hose->regions + 2,
337                                CFG_PCIE2_IO_BASE,
338                                CFG_PCIE2_IO_PHYS,
339                                CFG_PCIE2_IO_SIZE,
340                                PCI_REGION_IO);
341
342                 hose->region_count = 3;
343 #ifdef CFG_PCIE2_MEM_BASE2
344                 /* outbound memory */
345                 pci_set_region(hose->regions + 3,
346                                CFG_PCIE2_MEM_BASE2,
347                                CFG_PCIE2_MEM_PHYS2,
348                                CFG_PCIE2_MEM_SIZE2,
349                                PCI_REGION_MEM);
350                 hose->region_count++;
351 #endif
352                 hose->first_busno=first_free_busno;
353                 pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
354
355                 fsl_pci_init(hose);
356                 first_free_busno=hose->last_busno+1;
357                 printf ("    PCIE2 on bus %02x - %02x\n",
358                         hose->first_busno,hose->last_busno);
359
360         } else {
361                 printf ("    PCIE2: disabled\n");
362         }
363
364  }
365 #else
366         gur->devdisr |= MPC85xx_DEVDISR_PCIE2; /* disable */
367 #endif
368
369
370 #ifdef CONFIG_PCI1
371 {
372         volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCI1_ADDR;
373         extern void fsl_pci_init(struct pci_controller *hose);
374         struct pci_controller *hose = &pci1_hose;
375
376         uint pci_agent = (host_agent == 6);
377         uint pci_speed = 66666000; /*get_clock_freq (); PCI PSPEED in [4:5] */
378         uint pci_32 = 1;
379         uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;       /* PORDEVSR[14] */
380         uint pci_clk_sel = gur->porpllsr & MPC85xx_PORDEVSR_PCI1_SPD;   /* PORPLLSR[16] */
381
382
383         if (!(devdisr & MPC85xx_DEVDISR_PCI1)) {
384                 printf ("\n    PCI: %d bit, %s MHz, %s, %s, %s (base address %x)\n",
385                         (pci_32) ? 32 : 64,
386                         (pci_speed == 33333000) ? "33" :
387                         (pci_speed == 66666000) ? "66" : "unknown",
388                         pci_clk_sel ? "sync" : "async",
389                         pci_agent ? "agent" : "host",
390                         pci_arb ? "arbiter" : "external-arbiter",
391                         (uint)pci
392                         );
393
394                 /* inbound */
395                 pci_set_region(hose->regions + 0,
396                                CFG_PCI_MEMORY_BUS,
397                                CFG_PCI_MEMORY_PHYS,
398                                CFG_PCI_MEMORY_SIZE,
399                                PCI_REGION_MEM | PCI_REGION_MEMORY);
400
401                 /* outbound memory */
402                 pci_set_region(hose->regions + 1,
403                                CFG_PCI1_MEM_BASE,
404                                CFG_PCI1_MEM_PHYS,
405                                CFG_PCI1_MEM_SIZE,
406                                PCI_REGION_MEM);
407
408                 /* outbound io */
409                 pci_set_region(hose->regions + 2,
410                                CFG_PCI1_IO_BASE,
411                                CFG_PCI1_IO_PHYS,
412                                CFG_PCI1_IO_SIZE,
413                                PCI_REGION_IO);
414                 hose->region_count = 3;
415 #ifdef CFG_PCIE3_MEM_BASE2
416                 /* outbound memory */
417                 pci_set_region(hose->regions + 3,
418                                CFG_PCIE3_MEM_BASE2,
419                                CFG_PCIE3_MEM_PHYS2,
420                                CFG_PCIE3_MEM_SIZE2,
421                                PCI_REGION_MEM);
422                 hose->region_count++;
423 #endif
424                 hose->first_busno=first_free_busno;
425                 pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
426
427                 fsl_pci_init(hose);
428                 first_free_busno=hose->last_busno+1;
429                 printf ("PCI on bus %02x - %02x\n",
430                         hose->first_busno,hose->last_busno);
431         } else {
432                 printf ("    PCI: disabled\n");
433         }
434 }
435 #else
436         gur->devdisr |= MPC85xx_DEVDISR_PCI1; /* disable */
437 #endif
438 }
439
440
441 int last_stage_init(void)
442 {
443         return 0;
444 }
445
446
447 unsigned long
448 get_board_sys_clk(ulong dummy)
449 {
450         u8 i, go_bit, rd_clks;
451         ulong val = 0;
452
453         go_bit = in8(PIXIS_BASE + PIXIS_VCTL);
454         go_bit &= 0x01;
455
456         rd_clks = in8(PIXIS_BASE + PIXIS_VCFGEN0);
457         rd_clks &= 0x1C;
458
459         /*
460          * Only if both go bit and the SCLK bit in VCFGEN0 are set
461          * should we be using the AUX register. Remember, we also set the
462          * GO bit to boot from the alternate bank on the on-board flash
463          */
464
465         if (go_bit) {
466                 if (rd_clks == 0x1c)
467                         i = in8(PIXIS_BASE + PIXIS_AUX);
468                 else
469                         i = in8(PIXIS_BASE + PIXIS_SPD);
470         } else {
471                 i = in8(PIXIS_BASE + PIXIS_SPD);
472         }
473
474         i &= 0x07;
475
476         switch (i) {
477         case 0:
478                 val = 33333333;
479                 break;
480         case 1:
481                 val = 40000000;
482                 break;
483         case 2:
484                 val = 50000000;
485                 break;
486         case 3:
487                 val = 66666666;
488                 break;
489         case 4:
490                 val = 83000000;
491                 break;
492         case 5:
493                 val = 100000000;
494                 break;
495         case 6:
496                 val = 133333333;
497                 break;
498         case 7:
499                 val = 166666666;
500                 break;
501         }
502
503         return val;
504 }
505
506 #if defined(CONFIG_OF_BOARD_SETUP)
507
508 void
509 ft_board_setup(void *blob, bd_t *bd)
510 {
511         int node, tmp[2];
512         const char *path;
513
514         ft_cpu_setup(blob, bd);
515
516         node = fdt_path_offset(blob, "/aliases");
517         tmp[0] = 0;
518         if (node >= 0) {
519 #ifdef CONFIG_PCI1
520                 path = fdt_getprop(blob, node, "pci0", NULL);
521                 if (path) {
522                         tmp[1] = pci1_hose.last_busno - pci1_hose.first_busno;
523                         do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
524                 }
525 #endif
526 #ifdef CONFIG_PCIE2
527                 path = fdt_getprop(blob, node, "pci1", NULL);
528                 if (path) {
529                         tmp[1] = pcie2_hose.last_busno - pcie2_hose.first_busno;
530                         do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
531                 }
532 #endif
533 #ifdef CONFIG_PCIE1
534                 path = fdt_getprop(blob, node, "pci2", NULL);
535                 if (path) {
536                         tmp[1] = pcie1_hose.last_busno - pcie1_hose.first_busno;
537                         do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
538                 }
539 #endif
540 #ifdef CONFIG_PCIE3
541                 path = fdt_getprop(blob, node, "pci3", NULL);
542                 if (path) {
543                         tmp[1] = pcie3_hose.last_busno - pcie3_hose.first_busno;
544                         do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
545                 }
546 #endif
547         }
548 }
549 #endif