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ppc/8xxx: Refactor code to determine if PCI is enabled & agent/host
[u-boot] / board / freescale / mpc8544ds / mpc8544ds.c
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/mmu.h>
28 #include <asm/immap_85xx.h>
29 #include <asm/fsl_pci.h>
30 #include <asm/fsl_ddr_sdram.h>
31 #include <asm/io.h>
32 #include <miiphy.h>
33 #include <libfdt.h>
34 #include <fdt_support.h>
35 #include <tsec.h>
36 #include <netdev.h>
37
38 #include "../common/pixis.h"
39 #include "../common/sgmii_riser.h"
40
41 int checkboard (void)
42 {
43         volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
44         volatile ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR);
45         volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR);
46         u8 vboot;
47         u8 *pixis_base = (u8 *)PIXIS_BASE;
48
49         if ((uint)&gur->porpllsr != 0xe00e0000) {
50                 printf("immap size error %lx\n",(ulong)&gur->porpllsr);
51         }
52         printf ("Board: MPC8544DS, Sys ID: 0x%02x, "
53                 "Sys Ver: 0x%02x, FPGA Ver: 0x%02x, ",
54                 in_8(pixis_base + PIXIS_ID), in_8(pixis_base + PIXIS_VER),
55                 in_8(pixis_base + PIXIS_PVER));
56
57         vboot = in_8(pixis_base + PIXIS_VBOOT);
58         if (vboot & PIXIS_VBOOT_FMAP)
59                 printf ("vBank: %d\n", ((vboot & PIXIS_VBOOT_FBANK) >> 6));
60         else
61                 puts ("Promjet\n");
62
63         lbc->ltesr = 0xffffffff;        /* Clear LBC error interrupts */
64         lbc->lteir = 0xffffffff;        /* Enable LBC error interrupts */
65         ecm->eedr = 0xffffffff;         /* Clear ecm errors */
66         ecm->eeer = 0xffffffff;         /* Enable ecm errors */
67
68         return 0;
69 }
70
71 phys_size_t
72 initdram(int board_type)
73 {
74         long dram_size = 0;
75
76         puts("Initializing\n");
77
78         dram_size = fsl_ddr_sdram();
79
80         dram_size = setup_ddr_tlbs(dram_size / 0x100000);
81
82         dram_size *= 0x100000;
83
84         puts("    DDR: ");
85         return dram_size;
86 }
87
88 #ifdef CONFIG_PCI1
89 static struct pci_controller pci1_hose;
90 #endif
91
92 #ifdef CONFIG_PCIE1
93 static struct pci_controller pcie1_hose;
94 #endif
95
96 #ifdef CONFIG_PCIE2
97 static struct pci_controller pcie2_hose;
98 #endif
99
100 #ifdef CONFIG_PCIE3
101 static struct pci_controller pcie3_hose;
102 #endif
103
104 int first_free_busno=0;
105
106 void
107 pci_init_board(void)
108 {
109         volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
110         uint devdisr = gur->devdisr;
111         uint io_sel = (gur->pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;
112         uint host_agent = (gur->porbmsr & MPC85xx_PORBMSR_HA) >> 16;
113
114         debug ("   pci_init_board: devdisr=%x, io_sel=%x, host_agent=%x\n",
115                 devdisr, io_sel, host_agent);
116
117         if (io_sel & 1) {
118                 if (!(gur->pordevsr & MPC85xx_PORDEVSR_SGMII1_DIS))
119                         printf ("    eTSEC1 is in sgmii mode.\n");
120                 if (!(gur->pordevsr & MPC85xx_PORDEVSR_SGMII3_DIS))
121                         printf ("    eTSEC3 is in sgmii mode.\n");
122         }
123
124 #ifdef CONFIG_PCIE3
125 {
126         volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE3_ADDR;
127         struct pci_controller *hose = &pcie3_hose;
128         int pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_3, host_agent);
129         int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_3, io_sel);
130         struct pci_region *r = hose->regions;
131
132         if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
133                 printf ("\n    PCIE3 connected to ULI as %s (base address %x)",
134                         pcie_ep ? "End Point" : "Root Complex",
135                         (uint)pci);
136                 if (pci->pme_msg_det) {
137                         pci->pme_msg_det = 0xffffffff;
138                         debug (" with errors.  Clearing.  Now 0x%08x",pci->pme_msg_det);
139                 }
140                 printf ("\n");
141
142                 /* outbound memory */
143                 pci_set_region(r++,
144                                CONFIG_SYS_PCIE3_MEM_BUS,
145                                CONFIG_SYS_PCIE3_MEM_PHYS,
146                                CONFIG_SYS_PCIE3_MEM_SIZE,
147                                PCI_REGION_MEM);
148
149                 /* outbound io */
150                 pci_set_region(r++,
151                                CONFIG_SYS_PCIE3_IO_BUS,
152                                CONFIG_SYS_PCIE3_IO_PHYS,
153                                CONFIG_SYS_PCIE3_IO_SIZE,
154                                PCI_REGION_IO);
155
156 #ifdef CONFIG_SYS_PCIE3_MEM_BUS2
157                 /* outbound memory */
158                 pci_set_region(r++,
159                                CONFIG_SYS_PCIE3_MEM_BUS2,
160                                CONFIG_SYS_PCIE3_MEM_PHYS2,
161                                CONFIG_SYS_PCIE3_MEM_SIZE2,
162                                PCI_REGION_MEM);
163 #endif
164                 hose->region_count = r - hose->regions;
165                 hose->first_busno=first_free_busno;
166
167                 fsl_pci_init(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data);
168
169                 first_free_busno=hose->last_busno+1;
170                 printf ("    PCIE3 on bus %02x - %02x\n",
171                         hose->first_busno,hose->last_busno);
172
173                 /*
174                  * Activate ULI1575 legacy chip by performing a fake
175                  * memory access.  Needed to make ULI RTC work.
176                  */
177                 in_be32((u32 *)CONFIG_SYS_PCIE3_MEM_BUS);
178         } else {
179                 printf ("    PCIE3: disabled\n");
180         }
181
182  }
183 #else
184         gur->devdisr |= MPC85xx_DEVDISR_PCIE3; /* disable */
185 #endif
186
187 #ifdef CONFIG_PCIE1
188  {
189         volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE1_ADDR;
190         struct pci_controller *hose = &pcie1_hose;
191         int pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_1, host_agent);
192         int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
193         struct pci_region *r = hose->regions;
194
195         if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
196                 printf ("\n    PCIE1 connected to Slot2 as %s (base address %x)",
197                         pcie_ep ? "End Point" : "Root Complex",
198                         (uint)pci);
199                 if (pci->pme_msg_det) {
200                         pci->pme_msg_det = 0xffffffff;
201                         debug (" with errors.  Clearing.  Now 0x%08x",pci->pme_msg_det);
202                 }
203                 printf ("\n");
204
205                 /* outbound memory */
206                 pci_set_region(r++,
207                                CONFIG_SYS_PCIE1_MEM_BUS,
208                                CONFIG_SYS_PCIE1_MEM_PHYS,
209                                CONFIG_SYS_PCIE1_MEM_SIZE,
210                                PCI_REGION_MEM);
211
212                 /* outbound io */
213                 pci_set_region(r++,
214                                CONFIG_SYS_PCIE1_IO_BUS,
215                                CONFIG_SYS_PCIE1_IO_PHYS,
216                                CONFIG_SYS_PCIE1_IO_SIZE,
217                                PCI_REGION_IO);
218
219 #ifdef CONFIG_SYS_PCIE1_MEM_BUS2
220                 /* outbound memory */
221                 pci_set_region(r++,
222                                CONFIG_SYS_PCIE1_MEM_BUS2,
223                                CONFIG_SYS_PCIE1_MEM_PHYS2,
224                                CONFIG_SYS_PCIE1_MEM_SIZE2,
225                                PCI_REGION_MEM);
226 #endif
227                 hose->region_count = r - hose->regions;
228                 hose->first_busno=first_free_busno;
229
230                 fsl_pci_init(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data);
231
232                 first_free_busno=hose->last_busno+1;
233                 printf("    PCIE1 on bus %02x - %02x\n",
234                        hose->first_busno,hose->last_busno);
235
236         } else {
237                 printf ("    PCIE1: disabled\n");
238         }
239
240  }
241 #else
242         gur->devdisr |= MPC85xx_DEVDISR_PCIE; /* disable */
243 #endif
244
245 #ifdef CONFIG_PCIE2
246  {
247         volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE2_ADDR;
248         struct pci_controller *hose = &pcie2_hose;
249         int pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_2, host_agent);
250         int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_2, io_sel);
251         struct pci_region *r = hose->regions;
252
253         if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
254                 printf ("\n    PCIE2 connected to Slot 1 as %s (base address %x)",
255                         pcie_ep ? "End Point" : "Root Complex",
256                         (uint)pci);
257                 if (pci->pme_msg_det) {
258                         pci->pme_msg_det = 0xffffffff;
259                         debug (" with errors.  Clearing.  Now 0x%08x",pci->pme_msg_det);
260                 }
261                 printf ("\n");
262
263                 /* outbound memory */
264                 pci_set_region(r++,
265                                CONFIG_SYS_PCIE2_MEM_BUS,
266                                CONFIG_SYS_PCIE2_MEM_PHYS,
267                                CONFIG_SYS_PCIE2_MEM_SIZE,
268                                PCI_REGION_MEM);
269
270                 /* outbound io */
271                 pci_set_region(r++,
272                                CONFIG_SYS_PCIE2_IO_BUS,
273                                CONFIG_SYS_PCIE2_IO_PHYS,
274                                CONFIG_SYS_PCIE2_IO_SIZE,
275                                PCI_REGION_IO);
276
277 #ifdef CONFIG_SYS_PCIE2_MEM_BUS2
278                 /* outbound memory */
279                 pci_set_region(r++,
280                                CONFIG_SYS_PCIE2_MEM_BUS2,
281                                CONFIG_SYS_PCIE2_MEM_PHYS2,
282                                CONFIG_SYS_PCIE2_MEM_SIZE2,
283                                PCI_REGION_MEM);
284 #endif
285                 hose->region_count = r - hose->regions;
286                 hose->first_busno=first_free_busno;
287
288                 fsl_pci_init(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data);
289                 first_free_busno=hose->last_busno+1;
290                 printf ("    PCIE2 on bus %02x - %02x\n",
291                         hose->first_busno,hose->last_busno);
292
293         } else {
294                 printf ("    PCIE2: disabled\n");
295         }
296
297  }
298 #else
299         gur->devdisr |= MPC85xx_DEVDISR_PCIE2; /* disable */
300 #endif
301
302
303 #ifdef CONFIG_PCI1
304 {
305         volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCI1_ADDR;
306         struct pci_controller *hose = &pci1_hose;
307         struct pci_region *r = hose->regions;
308
309         uint pci_agent = is_fsl_pci_agent(LAW_TRGT_IF_PCI, host_agent);
310         uint pci_speed = 66666000; /*get_clock_freq (); PCI PSPEED in [4:5] */
311         uint pci_32 = 1;
312         uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;       /* PORDEVSR[14] */
313         uint pci_clk_sel = gur->porpllsr & MPC85xx_PORDEVSR_PCI1_SPD;   /* PORPLLSR[16] */
314
315
316         if (!(devdisr & MPC85xx_DEVDISR_PCI1)) {
317                 printf ("\n    PCI: %d bit, %s MHz, %s, %s, %s (base address %x)\n",
318                         (pci_32) ? 32 : 64,
319                         (pci_speed == 33333000) ? "33" :
320                         (pci_speed == 66666000) ? "66" : "unknown",
321                         pci_clk_sel ? "sync" : "async",
322                         pci_agent ? "agent" : "host",
323                         pci_arb ? "arbiter" : "external-arbiter",
324                         (uint)pci
325                         );
326
327                 /* outbound memory */
328                 pci_set_region(r++,
329                                CONFIG_SYS_PCI1_MEM_BUS,
330                                CONFIG_SYS_PCI1_MEM_PHYS,
331                                CONFIG_SYS_PCI1_MEM_SIZE,
332                                PCI_REGION_MEM);
333
334                 /* outbound io */
335                 pci_set_region(r++,
336                                CONFIG_SYS_PCI1_IO_BUS,
337                                CONFIG_SYS_PCI1_IO_PHYS,
338                                CONFIG_SYS_PCI1_IO_SIZE,
339                                PCI_REGION_IO);
340
341 #ifdef CONFIG_SYS_PCIE3_MEM_BUS2
342                 /* outbound memory */
343                 pci_set_region(r++,
344                                CONFIG_SYS_PCIE3_MEM_BUS2,
345                                CONFIG_SYS_PCIE3_MEM_PHYS2,
346                                CONFIG_SYS_PCIE3_MEM_SIZE2,
347                                PCI_REGION_MEM);
348 #endif
349                 hose->region_count = r - hose->regions;
350                 hose->first_busno=first_free_busno;
351
352                 fsl_pci_init(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data);
353                 first_free_busno=hose->last_busno+1;
354                 printf ("PCI on bus %02x - %02x\n",
355                         hose->first_busno,hose->last_busno);
356         } else {
357                 printf ("    PCI: disabled\n");
358         }
359 }
360 #else
361         gur->devdisr |= MPC85xx_DEVDISR_PCI1; /* disable */
362 #endif
363 }
364
365
366 int last_stage_init(void)
367 {
368         return 0;
369 }
370
371
372 unsigned long
373 get_board_sys_clk(ulong dummy)
374 {
375         u8 i, go_bit, rd_clks;
376         ulong val = 0;
377         u8 *pixis_base = (u8 *)PIXIS_BASE;
378
379         go_bit = in_8(pixis_base + PIXIS_VCTL);
380         go_bit &= 0x01;
381
382         rd_clks = in_8(pixis_base + PIXIS_VCFGEN0);
383         rd_clks &= 0x1C;
384
385         /*
386          * Only if both go bit and the SCLK bit in VCFGEN0 are set
387          * should we be using the AUX register. Remember, we also set the
388          * GO bit to boot from the alternate bank on the on-board flash
389          */
390
391         if (go_bit) {
392                 if (rd_clks == 0x1c)
393                         i = in_8(pixis_base + PIXIS_AUX);
394                 else
395                         i = in_8(pixis_base + PIXIS_SPD);
396         } else {
397                 i = in_8(pixis_base + PIXIS_SPD);
398         }
399
400         i &= 0x07;
401
402         switch (i) {
403         case 0:
404                 val = 33333333;
405                 break;
406         case 1:
407                 val = 40000000;
408                 break;
409         case 2:
410                 val = 50000000;
411                 break;
412         case 3:
413                 val = 66666666;
414                 break;
415         case 4:
416                 val = 83000000;
417                 break;
418         case 5:
419                 val = 100000000;
420                 break;
421         case 6:
422                 val = 133333333;
423                 break;
424         case 7:
425                 val = 166666666;
426                 break;
427         }
428
429         return val;
430 }
431
432 int board_eth_init(bd_t *bis)
433 {
434 #ifdef CONFIG_TSEC_ENET
435         struct tsec_info_struct tsec_info[2];
436         volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
437         uint io_sel = (gur->pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;
438         int num = 0;
439
440 #ifdef CONFIG_TSEC1
441         SET_STD_TSEC_INFO(tsec_info[num], 1);
442         if (!(gur->pordevsr & MPC85xx_PORDEVSR_SGMII1_DIS))
443                 tsec_info[num].flags |= TSEC_SGMII;
444         num++;
445 #endif
446 #ifdef CONFIG_TSEC3
447         SET_STD_TSEC_INFO(tsec_info[num], 3);
448         if (!(gur->pordevsr & MPC85xx_PORDEVSR_SGMII3_DIS))
449                 tsec_info[num].flags |= TSEC_SGMII;
450         num++;
451 #endif
452
453         if (!num) {
454                 printf("No TSECs initialized\n");
455
456                 return 0;
457         }
458
459         if (io_sel & 1)
460                 fsl_sgmii_riser_init(tsec_info, num);
461
462
463         tsec_eth_init(bis, tsec_info, num);
464 #endif
465         return pci_eth_init(bis);
466 }
467
468 #if defined(CONFIG_OF_BOARD_SETUP)
469 void ft_board_setup(void *blob, bd_t *bd)
470 {
471         ft_cpu_setup(blob, bd);
472
473
474 #ifdef CONFIG_PCI1
475         ft_fsl_pci_setup(blob, "pci0", &pci1_hose);
476 #endif
477 #ifdef CONFIG_PCIE2
478         ft_fsl_pci_setup(blob, "pci1", &pcie1_hose);
479 #endif
480 #ifdef CONFIG_PCIE1
481         ft_fsl_pci_setup(blob, "pci2", &pcie3_hose);
482 #endif
483 #ifdef CONFIG_PCIE3
484         ft_fsl_pci_setup(blob, "pci3", &pcie2_hose);
485 #endif
486 #ifdef CONFIG_FSL_SGMII_RISER
487         fsl_sgmii_riser_fdt_fixup(blob);
488 #endif
489 }
490 #endif