2 * Copyright 2007-2012 Freescale Semiconductor, Inc.
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License as published by the Free
6 * Software Foundation; either version 2 of the License, or (at your option)
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
22 #include <asm/fsl_serdes.h>
24 DECLARE_GLOBAL_DATA_PTR
;
27 * PCI/PCIE Controller initialization for mpc85xx/mpc86xx soc's
29 * Initialize controller and call the common driver/pci pci_hose_scan to
30 * scan for bridges and devices.
32 * Hose fields which need to be pre-initialized by board specific code:
42 #include <asm/fsl_pci.h>
44 /* Freescale-specific PCI config registers */
45 #define FSL_PCI_PBFR 0x44
46 #define FSL_PCIE_CAP_ID 0x4c
47 #define FSL_PCIE_CFG_RDY 0x4b0
48 #define FSL_PROG_IF_AGENT 0x1
50 #ifndef CONFIG_SYS_PCI_MEMORY_BUS
51 #define CONFIG_SYS_PCI_MEMORY_BUS 0
54 #ifndef CONFIG_SYS_PCI_MEMORY_PHYS
55 #define CONFIG_SYS_PCI_MEMORY_PHYS 0
58 #if defined(CONFIG_SYS_PCI_64BIT) && !defined(CONFIG_SYS_PCI64_MEMORY_BUS)
59 #define CONFIG_SYS_PCI64_MEMORY_BUS (64ull*1024*1024*1024)
62 /* Setup one inbound ATMU window.
64 * We let the caller decide what the window size should be
66 static void set_inbound_window(volatile pit_t
*pi
,
70 u32 sz
= (__ilog2_u64(size
) - 1);
71 u32 flag
= PIWAR_EN
| PIWAR_LOCAL
|
72 PIWAR_READ_SNOOP
| PIWAR_WRITE_SNOOP
;
74 out_be32(&pi
->pitar
, r
->phys_start
>> 12);
75 out_be32(&pi
->piwbar
, r
->bus_start
>> 12);
76 #ifdef CONFIG_SYS_PCI_64BIT
77 out_be32(&pi
->piwbear
, r
->bus_start
>> 44);
79 out_be32(&pi
->piwbear
, 0);
81 if (r
->flags
& PCI_REGION_PREFETCH
)
83 out_be32(&pi
->piwar
, flag
| sz
);
86 int fsl_setup_hose(struct pci_controller
*hose
, unsigned long addr
)
88 volatile ccsr_fsl_pci_t
*pci
= (ccsr_fsl_pci_t
*) addr
;
90 /* Reset hose to make sure its in a clean state */
91 memset(hose
, 0, sizeof(struct pci_controller
));
93 pci_setup_indirect(hose
, (u32
)&pci
->cfg_addr
, (u32
)&pci
->cfg_data
);
95 return fsl_is_pci_agent(hose
);
98 static int fsl_pci_setup_inbound_windows(struct pci_controller
*hose
,
99 u64 out_lo
, u8 pcie_cap
,
102 struct pci_region
*r
= hose
->regions
+ hose
->region_count
;
103 u64 sz
= min((u64
)gd
->ram_size
, (1ull << 32));
105 phys_addr_t phys_start
= CONFIG_SYS_PCI_MEMORY_PHYS
;
106 pci_addr_t bus_start
= CONFIG_SYS_PCI_MEMORY_BUS
;
109 /* we have no space available for inbound memory mapping */
110 if (bus_start
> out_lo
) {
111 printf ("no space for inbound mapping of memory\n");
116 if ((bus_start
+ sz
) > out_lo
) {
117 sz
= out_lo
- bus_start
;
118 debug ("limiting size to %llx\n", sz
);
121 pci_sz
= 1ull << __ilog2_u64(sz
);
123 * we can overlap inbound/outbound windows on PCI-E since RX & TX
126 if ((pcie_cap
== PCI_CAP_ID_EXP
) && (pci_sz
< sz
)) {
127 debug ("R0 bus_start: %llx phys_start: %llx size: %llx\n",
128 (u64
)bus_start
, (u64
)phys_start
, (u64
)sz
);
129 pci_set_region(r
, bus_start
, phys_start
, sz
,
130 PCI_REGION_MEM
| PCI_REGION_SYS_MEMORY
|
131 PCI_REGION_PREFETCH
);
133 /* if we aren't an exact power of two match, pci_sz is smaller
134 * round it up to the next power of two. We report the actual
135 * size to pci region tracking.
138 sz
= 2ull << __ilog2_u64(sz
);
140 set_inbound_window(pi
--, r
++, sz
);
141 sz
= 0; /* make sure we dont set the R2 window */
143 debug ("R0 bus_start: %llx phys_start: %llx size: %llx\n",
144 (u64
)bus_start
, (u64
)phys_start
, (u64
)pci_sz
);
145 pci_set_region(r
, bus_start
, phys_start
, pci_sz
,
146 PCI_REGION_MEM
| PCI_REGION_SYS_MEMORY
|
147 PCI_REGION_PREFETCH
);
148 set_inbound_window(pi
--, r
++, pci_sz
);
152 phys_start
+= pci_sz
;
154 pci_sz
= 1ull << __ilog2_u64(sz
);
156 debug ("R1 bus_start: %llx phys_start: %llx size: %llx\n",
157 (u64
)bus_start
, (u64
)phys_start
, (u64
)pci_sz
);
158 pci_set_region(r
, bus_start
, phys_start
, pci_sz
,
159 PCI_REGION_MEM
| PCI_REGION_SYS_MEMORY
|
160 PCI_REGION_PREFETCH
);
161 set_inbound_window(pi
--, r
++, pci_sz
);
164 phys_start
+= pci_sz
;
168 #if defined(CONFIG_PHYS_64BIT) && defined(CONFIG_SYS_PCI_64BIT)
170 * On 64-bit capable systems, set up a mapping for all of DRAM
171 * in high pci address space.
173 pci_sz
= 1ull << __ilog2_u64(gd
->ram_size
);
174 /* round up to the next largest power of two */
175 if (gd
->ram_size
> pci_sz
)
176 pci_sz
= 1ull << (__ilog2_u64(gd
->ram_size
) + 1);
177 debug ("R64 bus_start: %llx phys_start: %llx size: %llx\n",
178 (u64
)CONFIG_SYS_PCI64_MEMORY_BUS
,
179 (u64
)CONFIG_SYS_PCI_MEMORY_PHYS
,
182 CONFIG_SYS_PCI64_MEMORY_BUS
,
183 CONFIG_SYS_PCI_MEMORY_PHYS
,
185 PCI_REGION_MEM
| PCI_REGION_SYS_MEMORY
|
186 PCI_REGION_PREFETCH
);
187 set_inbound_window(pi
--, r
++, pci_sz
);
189 pci_sz
= 1ull << __ilog2_u64(sz
);
191 debug ("R2 bus_start: %llx phys_start: %llx size: %llx\n",
192 (u64
)bus_start
, (u64
)phys_start
, (u64
)pci_sz
);
193 pci_set_region(r
, bus_start
, phys_start
, pci_sz
,
194 PCI_REGION_MEM
| PCI_REGION_SYS_MEMORY
|
195 PCI_REGION_PREFETCH
);
198 phys_start
+= pci_sz
;
199 set_inbound_window(pi
--, r
++, pci_sz
);
203 #ifdef CONFIG_PHYS_64BIT
204 if (sz
&& (((u64
)gd
->ram_size
) < (1ull << 32)))
205 printf("Was not able to map all of memory via "
206 "inbound windows -- %lld remaining\n", sz
);
209 hose
->region_count
= r
- hose
->regions
;
214 #ifdef CONFIG_SYS_FSL_SRIO_PCIE_BOOT_MASTER
215 static void fsl_pcie_boot_master(pit_t
*pi
)
217 /* configure inbound window for slave's u-boot image */
218 debug("PCIEBOOT - MASTER: Inbound window for slave's image; "
219 "Local = 0x%llx, Bus = 0x%llx, Size = 0x%x\n",
220 (u64
)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS
,
221 (u64
)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS1
,
222 CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE
);
223 struct pci_region r_inbound
;
224 u32 sz_inbound
= __ilog2_u64(CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE
)
226 pci_set_region(&r_inbound
,
227 CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS1
,
228 CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS
,
230 PCI_REGION_MEM
| PCI_REGION_SYS_MEMORY
);
232 set_inbound_window(pi
--, &r_inbound
,
233 CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE
);
235 /* configure inbound window for slave's u-boot image */
236 debug("PCIEBOOT - MASTER: Inbound window for slave's image; "
237 "Local = 0x%llx, Bus = 0x%llx, Size = 0x%x\n",
238 (u64
)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS
,
239 (u64
)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS2
,
240 CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE
);
241 pci_set_region(&r_inbound
,
242 CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS2
,
243 CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS
,
245 PCI_REGION_MEM
| PCI_REGION_SYS_MEMORY
);
247 set_inbound_window(pi
--, &r_inbound
,
248 CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE
);
250 /* configure inbound window for slave's ucode and ENV */
251 debug("PCIEBOOT - MASTER: Inbound window for slave's "
253 "Local = 0x%llx, Bus = 0x%llx, Size = 0x%x\n",
254 (u64
)CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_PHYS
,
255 (u64
)CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_BUS
,
256 CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_SIZE
);
257 sz_inbound
= __ilog2_u64(CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_SIZE
)
259 pci_set_region(&r_inbound
,
260 CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_BUS
,
261 CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_PHYS
,
263 PCI_REGION_MEM
| PCI_REGION_SYS_MEMORY
);
265 set_inbound_window(pi
--, &r_inbound
,
266 CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_SIZE
);
269 static void fsl_pcie_boot_master_release_slave(int port
)
271 unsigned long release_addr
;
273 /* now release slave's core 0 */
276 release_addr
= CONFIG_SYS_PCIE1_MEM_VIRT
277 + CONFIG_SRIO_PCIE_BOOT_BRR_OFFSET
;
279 #ifdef CONFIG_SYS_PCIE2_MEM_VIRT
281 release_addr
= CONFIG_SYS_PCIE2_MEM_VIRT
282 + CONFIG_SRIO_PCIE_BOOT_BRR_OFFSET
;
285 #ifdef CONFIG_SYS_PCIE3_MEM_VIRT
287 release_addr
= CONFIG_SYS_PCIE3_MEM_VIRT
288 + CONFIG_SRIO_PCIE_BOOT_BRR_OFFSET
;
295 if (release_addr
!= 0) {
296 out_be32((void *)release_addr
,
297 CONFIG_SRIO_PCIE_BOOT_RELEASE_MASK
);
298 debug("PCIEBOOT - MASTER: "
299 "Release slave successfully! Now the slave should start up!\n");
301 debug("PCIEBOOT - MASTER: "
302 "Release slave failed!\n");
307 void fsl_pci_init(struct pci_controller
*hose
, struct fsl_pci_info
*pci_info
)
309 u32 cfg_addr
= (u32
)&((ccsr_fsl_pci_t
*)pci_info
->regs
)->cfg_addr
;
310 u32 cfg_data
= (u32
)&((ccsr_fsl_pci_t
*)pci_info
->regs
)->cfg_data
;
314 int enabled
, r
, inbound
= 0;
317 volatile ccsr_fsl_pci_t
*pci
= (ccsr_fsl_pci_t
*)cfg_addr
;
318 struct pci_region
*reg
= hose
->regions
+ hose
->region_count
;
319 pci_dev_t dev
= PCI_BDF(hose
->first_busno
, 0, 0);
321 /* Initialize ATMU registers based on hose regions and flags */
322 volatile pot_t
*po
= &pci
->pot
[1]; /* skip 0 */
325 u64 out_hi
= 0, out_lo
= -1ULL;
326 u32 pcicsrbar
, pcicsrbar_sz
;
328 pci_setup_indirect(hose
, cfg_addr
, cfg_data
);
330 block_rev
= in_be32(&pci
->block_rev1
);
331 if (PEX_IP_BLK_REV_2_2
<= block_rev
) {
332 pi
= &pci
->pit
[2]; /* 0xDC0 */
334 pi
= &pci
->pit
[3]; /* 0xDE0 */
337 /* Handle setup of outbound windows first */
338 for (r
= 0; r
< hose
->region_count
; r
++) {
339 unsigned long flags
= hose
->regions
[r
].flags
;
340 u32 sz
= (__ilog2_u64((u64
)hose
->regions
[r
].size
) - 1);
342 flags
&= PCI_REGION_SYS_MEMORY
|PCI_REGION_TYPE
;
343 if (flags
!= PCI_REGION_SYS_MEMORY
) {
344 u64 start
= hose
->regions
[r
].bus_start
;
345 u64 end
= start
+ hose
->regions
[r
].size
;
347 out_be32(&po
->powbar
, hose
->regions
[r
].phys_start
>> 12);
348 out_be32(&po
->potar
, start
>> 12);
349 #ifdef CONFIG_SYS_PCI_64BIT
350 out_be32(&po
->potear
, start
>> 44);
352 out_be32(&po
->potear
, 0);
354 if (hose
->regions
[r
].flags
& PCI_REGION_IO
) {
355 out_be32(&po
->powar
, POWAR_EN
| sz
|
356 POWAR_IO_READ
| POWAR_IO_WRITE
);
358 out_be32(&po
->powar
, POWAR_EN
| sz
|
359 POWAR_MEM_READ
| POWAR_MEM_WRITE
);
360 out_lo
= min(start
, out_lo
);
361 out_hi
= max(end
, out_hi
);
366 debug("Outbound memory range: %llx:%llx\n", out_lo
, out_hi
);
368 /* setup PCSRBAR/PEXCSRBAR */
369 pci_hose_write_config_dword(hose
, dev
, PCI_BASE_ADDRESS_0
, 0xffffffff);
370 pci_hose_read_config_dword (hose
, dev
, PCI_BASE_ADDRESS_0
, &pcicsrbar_sz
);
371 pcicsrbar_sz
= ~pcicsrbar_sz
+ 1;
373 if (out_hi
< (0x100000000ull
- pcicsrbar_sz
) ||
374 (out_lo
> 0x100000000ull
))
375 pcicsrbar
= 0x100000000ull
- pcicsrbar_sz
;
377 pcicsrbar
= (out_lo
- pcicsrbar_sz
) & -pcicsrbar_sz
;
378 pci_hose_write_config_dword(hose
, dev
, PCI_BASE_ADDRESS_0
, pcicsrbar
);
380 out_lo
= min(out_lo
, (u64
)pcicsrbar
);
382 debug("PCICSRBAR @ 0x%x\n", pcicsrbar
);
384 pci_set_region(reg
++, pcicsrbar
, CONFIG_SYS_CCSRBAR_PHYS
,
385 pcicsrbar_sz
, PCI_REGION_SYS_MEMORY
);
386 hose
->region_count
++;
388 /* see if we are a PCIe or PCI controller */
389 pci_hose_read_config_byte(hose
, dev
, FSL_PCIE_CAP_ID
, &pcie_cap
);
391 #ifdef CONFIG_SYS_FSL_SRIO_PCIE_BOOT_MASTER
392 /* boot from PCIE --master */
393 char *s
= getenv("bootmaster");
395 sprintf(pcie
, "PCIE%d", pci_info
->pci_num
);
397 if (s
&& (strcmp(s
, pcie
) == 0)) {
398 debug("PCIEBOOT - MASTER: Master port [ %d ] for pcie boot.\n",
400 fsl_pcie_boot_master((pit_t
*)pi
);
403 inbound
= fsl_pci_setup_inbound_windows(hose
,
404 out_lo
, pcie_cap
, pi
);
408 inbound
= fsl_pci_setup_inbound_windows(hose
, out_lo
, pcie_cap
, pi
);
411 for (r
= 0; r
< hose
->region_count
; r
++)
412 debug("PCI reg:%d %016llx:%016llx %016llx %08lx\n", r
,
413 (u64
)hose
->regions
[r
].phys_start
,
414 (u64
)hose
->regions
[r
].bus_start
,
415 (u64
)hose
->regions
[r
].size
,
416 hose
->regions
[r
].flags
);
418 pci_register_hose(hose
);
419 pciauto_config_init(hose
); /* grab pci_{mem,prefetch,io} */
420 hose
->current_busno
= hose
->first_busno
;
422 out_be32(&pci
->pedr
, 0xffffffff); /* Clear any errors */
423 out_be32(&pci
->peer
, ~0x20140); /* Enable All Error Interrupts except
424 * - Master abort (pci)
425 * - Master PERR (pci)
428 pci_hose_read_config_dword(hose
, dev
, PCI_DCR
, &temp32
);
429 temp32
|= 0xf000e; /* set URR, FER, NFER (but not CER) */
430 pci_hose_write_config_dword(hose
, dev
, PCI_DCR
, temp32
);
432 #if defined(CONFIG_FSL_PCIE_DISABLE_ASPM)
434 pci_hose_read_config_dword(hose
, dev
, PCI_LCR
, &temp32
);
435 temp32
&= ~0x03; /* Disable ASPM */
436 pci_hose_write_config_dword(hose
, dev
, PCI_LCR
, temp32
);
439 if (pcie_cap
== PCI_CAP_ID_EXP
) {
440 pci_hose_read_config_word(hose
, dev
, PCI_LTSSM
, <ssm
);
441 enabled
= ltssm
>= PCI_LTSSM_L0
;
443 #ifdef CONFIG_FSL_PCIE_RESET
446 debug("....PCIe link error. " "LTSSM=0x%02x.", ltssm
);
447 /* assert PCIe reset */
448 setbits_be32(&pci
->pdb_stat
, 0x08000000);
449 (void) in_be32(&pci
->pdb_stat
);
451 debug(" Asserting PCIe reset @%p = %x\n",
452 &pci
->pdb_stat
, in_be32(&pci
->pdb_stat
));
453 /* clear PCIe reset */
454 clrbits_be32(&pci
->pdb_stat
, 0x08000000);
456 for (i
=0; i
<100 && ltssm
< PCI_LTSSM_L0
; i
++) {
457 pci_hose_read_config_word(hose
, dev
, PCI_LTSSM
,
460 debug("....PCIe link error. "
461 "LTSSM=0x%02x.\n", ltssm
);
463 enabled
= ltssm
>= PCI_LTSSM_L0
;
465 /* we need to re-write the bar0 since a reset will
468 pci_hose_write_config_dword(hose
, dev
,
469 PCI_BASE_ADDRESS_0
, pcicsrbar
);
474 /* Let the user know there's no PCIe link */
475 printf("no link, regs @ 0x%lx\n", pci_info
->regs
);
476 hose
->last_busno
= hose
->first_busno
;
480 out_be32(&pci
->pme_msg_det
, 0xffffffff);
481 out_be32(&pci
->pme_msg_int_en
, 0xffffffff);
483 /* Print the negotiated PCIe link width */
484 pci_hose_read_config_word(hose
, dev
, PCI_LSR
, &temp16
);
485 printf("x%d, regs @ 0x%lx\n", (temp16
& 0x3f0 ) >> 4,
488 hose
->current_busno
++; /* Start scan with secondary */
489 pciauto_prescan_setup_bridge(hose
, dev
, hose
->current_busno
);
492 /* Use generic setup_device to initialize standard pci regs,
493 * but do not allocate any windows since any BAR found (such
494 * as PCSRBAR) is not in this cpu's memory space.
496 pciauto_setup_device(hose
, dev
, 0, hose
->pci_mem
,
497 hose
->pci_prefetch
, hose
->pci_io
);
500 pci_hose_read_config_word(hose
, dev
, PCI_COMMAND
, &temp16
);
501 pci_hose_write_config_word(hose
, dev
, PCI_COMMAND
,
502 temp16
| PCI_COMMAND_MEMORY
);
505 #ifndef CONFIG_PCI_NOSCAN
506 if (!fsl_is_pci_agent(hose
)) {
507 debug(" Scanning PCI bus %02x\n",
508 hose
->current_busno
);
509 hose
->last_busno
= pci_hose_scan_bus(hose
, hose
->current_busno
);
511 debug(" Not scanning PCI bus %02x. PI=%x\n",
512 hose
->current_busno
, temp8
);
513 hose
->last_busno
= hose
->current_busno
;
516 /* if we are PCIe - update limit regs and subordinate busno
517 * for the virtual P2P bridge
519 if (pcie_cap
== PCI_CAP_ID_EXP
) {
520 pciauto_postscan_setup_bridge(hose
, dev
, hose
->last_busno
);
523 hose
->last_busno
= hose
->current_busno
;
526 /* Clear all error indications */
527 if (pcie_cap
== PCI_CAP_ID_EXP
)
528 out_be32(&pci
->pme_msg_det
, 0xffffffff);
529 out_be32(&pci
->pedr
, 0xffffffff);
531 pci_hose_read_config_word (hose
, dev
, PCI_DSR
, &temp16
);
533 pci_hose_write_config_word(hose
, dev
, PCI_DSR
, 0xffff);
536 pci_hose_read_config_word (hose
, dev
, PCI_SEC_STATUS
, &temp16
);
538 pci_hose_write_config_word(hose
, dev
, PCI_SEC_STATUS
, 0xffff);
542 int fsl_is_pci_agent(struct pci_controller
*hose
)
545 pci_dev_t dev
= PCI_BDF(hose
->first_busno
, 0, 0);
547 pci_hose_read_config_byte(hose
, dev
, FSL_PCIE_CAP_ID
, &pcie_cap
);
548 if (pcie_cap
== PCI_CAP_ID_EXP
) {
551 pci_hose_read_config_byte(hose
, dev
, PCI_HEADER_TYPE
,
553 return (header_type
& 0x7f) == PCI_HEADER_TYPE_NORMAL
;
557 pci_hose_read_config_byte(hose
, dev
, PCI_CLASS_PROG
, &prog_if
);
558 return (prog_if
== FSL_PROG_IF_AGENT
);
562 int fsl_pci_init_port(struct fsl_pci_info
*pci_info
,
563 struct pci_controller
*hose
, int busno
)
565 volatile ccsr_fsl_pci_t
*pci
;
566 struct pci_region
*r
;
567 pci_dev_t dev
= PCI_BDF(busno
,0,0);
570 pci
= (ccsr_fsl_pci_t
*) pci_info
->regs
;
572 /* on non-PCIe controllers we don't have pme_msg_det so this code
573 * should do nothing since the read will return 0
575 if (in_be32(&pci
->pme_msg_det
)) {
576 out_be32(&pci
->pme_msg_det
, 0xffffffff);
577 debug (" with errors. Clearing. Now 0x%08x",
581 r
= hose
->regions
+ hose
->region_count
;
583 /* outbound memory */
597 hose
->region_count
= r
- hose
->regions
;
598 hose
->first_busno
= busno
;
600 fsl_pci_init(hose
, pci_info
);
602 if (fsl_is_pci_agent(hose
)) {
603 fsl_pci_config_unlock(hose
);
604 hose
->last_busno
= hose
->first_busno
;
605 #ifdef CONFIG_SYS_FSL_SRIO_PCIE_BOOT_MASTER
607 /* boot from PCIE --master releases slave's core 0 */
608 char *s
= getenv("bootmaster");
610 sprintf(pcie
, "PCIE%d", pci_info
->pci_num
);
612 if (s
&& (strcmp(s
, pcie
) == 0))
613 fsl_pcie_boot_master_release_slave(pci_info
->pci_num
);
617 pci_hose_read_config_byte(hose
, dev
, FSL_PCIE_CAP_ID
, &pcie_cap
);
618 printf("PCI%s%x: Bus %02x - %02x\n", pcie_cap
== PCI_CAP_ID_EXP
?
619 "e" : "", pci_info
->pci_num
,
620 hose
->first_busno
, hose
->last_busno
);
622 return(hose
->last_busno
+ 1);
625 /* Enable inbound PCI config cycles for agent/endpoint interface */
626 void fsl_pci_config_unlock(struct pci_controller
*hose
)
628 pci_dev_t dev
= PCI_BDF(hose
->first_busno
,0,0);
632 if (!fsl_is_pci_agent(hose
))
635 pci_hose_read_config_byte(hose
, dev
, FSL_PCIE_CAP_ID
, &pcie_cap
);
636 if (pcie_cap
!= 0x0) {
637 /* PCIe - set CFG_READY bit of Configuration Ready Register */
638 pci_hose_write_config_byte(hose
, dev
, FSL_PCIE_CFG_RDY
, 0x1);
640 /* PCI - clear ACL bit of PBFR */
641 pci_hose_read_config_word(hose
, dev
, FSL_PCI_PBFR
, &pbfr
);
643 pci_hose_write_config_word(hose
, dev
, FSL_PCI_PBFR
, pbfr
);
647 #if defined(CONFIG_PCIE1) || defined(CONFIG_PCIE2) || \
648 defined(CONFIG_PCIE3) || defined(CONFIG_PCIE4)
649 int fsl_configure_pcie(struct fsl_pci_info
*info
,
650 struct pci_controller
*hose
,
651 const char *connected
, int busno
)
655 set_next_law(info
->mem_phys
, law_size_bits(info
->mem_size
), info
->law
);
656 set_next_law(info
->io_phys
, law_size_bits(info
->io_size
), info
->law
);
658 is_endpoint
= fsl_setup_hose(hose
, info
->regs
);
659 printf("PCIe%u: %s", info
->pci_num
,
660 is_endpoint
? "Endpoint" : "Root Complex");
662 printf(" of %s", connected
);
665 return fsl_pci_init_port(info
, hose
, busno
);
668 #if defined(CONFIG_FSL_CORENET)
669 #ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2
670 #define _DEVDISR_PCIE1 FSL_CORENET_DEVDISR3_PCIE1
671 #define _DEVDISR_PCIE2 FSL_CORENET_DEVDISR3_PCIE2
672 #define _DEVDISR_PCIE3 FSL_CORENET_DEVDISR3_PCIE3
673 #define _DEVDISR_PCIE4 FSL_CORENET_DEVDISR3_PCIE4
675 #define _DEVDISR_PCIE1 FSL_CORENET_DEVDISR_PCIE1
676 #define _DEVDISR_PCIE2 FSL_CORENET_DEVDISR_PCIE2
677 #define _DEVDISR_PCIE3 FSL_CORENET_DEVDISR_PCIE3
678 #define _DEVDISR_PCIE4 FSL_CORENET_DEVDISR_PCIE4
680 #define CONFIG_SYS_MPC8xxx_GUTS_ADDR CONFIG_SYS_MPC85xx_GUTS_ADDR
681 #elif defined(CONFIG_MPC85xx)
682 #define _DEVDISR_PCIE1 MPC85xx_DEVDISR_PCIE
683 #define _DEVDISR_PCIE2 MPC85xx_DEVDISR_PCIE2
684 #define _DEVDISR_PCIE3 MPC85xx_DEVDISR_PCIE3
685 #define _DEVDISR_PCIE4 0
686 #define CONFIG_SYS_MPC8xxx_GUTS_ADDR CONFIG_SYS_MPC85xx_GUTS_ADDR
687 #elif defined(CONFIG_MPC86xx)
688 #define _DEVDISR_PCIE1 MPC86xx_DEVDISR_PCIE1
689 #define _DEVDISR_PCIE2 MPC86xx_DEVDISR_PCIE2
690 #define _DEVDISR_PCIE3 0
691 #define _DEVDISR_PCIE4 0
692 #define CONFIG_SYS_MPC8xxx_GUTS_ADDR \
693 (&((immap_t *)CONFIG_SYS_IMMR)->im_gur)
695 #error "No defines for DEVDISR_PCIE"
698 /* Implement a dummy function for those platforms w/o SERDES */
699 static const char *__board_serdes_name(enum srds_prtcl device
)
702 #ifdef CONFIG_SYS_PCIE1_NAME
704 return CONFIG_SYS_PCIE1_NAME
;
706 #ifdef CONFIG_SYS_PCIE2_NAME
708 return CONFIG_SYS_PCIE2_NAME
;
710 #ifdef CONFIG_SYS_PCIE3_NAME
712 return CONFIG_SYS_PCIE3_NAME
;
714 #ifdef CONFIG_SYS_PCIE4_NAME
716 return CONFIG_SYS_PCIE4_NAME
;
725 __attribute__((weak
, alias("__board_serdes_name"))) const char *
726 board_serdes_name(enum srds_prtcl device
);
728 static u32 devdisr_mask
[] = {
735 int fsl_pcie_init_ctrl(int busno
, u32 devdisr
, enum srds_prtcl dev
,
736 struct fsl_pci_info
*pci_info
)
738 struct pci_controller
*hose
;
739 int num
= dev
- PCIE1
;
741 hose
= calloc(1, sizeof(struct pci_controller
));
745 if (is_serdes_configured(dev
) && !(devdisr
& devdisr_mask
[num
])) {
746 busno
= fsl_configure_pcie(pci_info
, hose
,
747 board_serdes_name(dev
), busno
);
749 printf("PCIe%d: disabled\n", num
+ 1);
755 int fsl_pcie_init_board(int busno
)
757 struct fsl_pci_info pci_info
;
758 ccsr_gur_t
*gur
= (void *)CONFIG_SYS_MPC8xxx_GUTS_ADDR
;
762 #ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2
763 addr
= &gur
->devdisr3
;
765 addr
= &gur
->devdisr
;
767 devdisr
= in_be32(addr
);
770 SET_STD_PCIE_INFO(pci_info
, 1);
771 busno
= fsl_pcie_init_ctrl(busno
, devdisr
, PCIE1
, &pci_info
);
773 setbits_be32(addr
, _DEVDISR_PCIE1
); /* disable */
777 SET_STD_PCIE_INFO(pci_info
, 2);
778 busno
= fsl_pcie_init_ctrl(busno
, devdisr
, PCIE2
, &pci_info
);
780 setbits_be32(addr
, _DEVDISR_PCIE2
); /* disable */
784 SET_STD_PCIE_INFO(pci_info
, 3);
785 busno
= fsl_pcie_init_ctrl(busno
, devdisr
, PCIE3
, &pci_info
);
787 setbits_be32(addr
, _DEVDISR_PCIE3
); /* disable */
791 SET_STD_PCIE_INFO(pci_info
, 4);
792 busno
= fsl_pcie_init_ctrl(busno
, devdisr
, PCIE4
, &pci_info
);
794 setbits_be32(addr
, _DEVDISR_PCIE4
); /* disable */
800 int fsl_pcie_init_ctrl(int busno
, u32 devdisr
, enum srds_prtcl dev
,
801 struct fsl_pci_info
*pci_info
)
806 int fsl_pcie_init_board(int busno
)
812 #ifdef CONFIG_OF_BOARD_SETUP
814 #include <fdt_support.h>
816 void ft_fsl_pci_setup(void *blob
, const char *pci_compat
,
817 unsigned long ctrl_addr
)
821 phys_addr_t p_ctrl_addr
= (phys_addr_t
)ctrl_addr
;
822 struct pci_controller
*hose
;
824 hose
= find_hose_by_cfg_addr((void *)(ctrl_addr
));
826 /* convert ctrl_addr to true physical address */
827 p_ctrl_addr
= (phys_addr_t
)ctrl_addr
- CONFIG_SYS_CCSRBAR
;
828 p_ctrl_addr
+= CONFIG_SYS_CCSRBAR_PHYS
;
830 off
= fdt_node_offset_by_compat_reg(blob
, pci_compat
, p_ctrl_addr
);
835 /* We assume a cfg_addr not being set means we didn't setup the controller */
836 if ((hose
== NULL
) || (hose
->cfg_addr
== NULL
)) {
837 fdt_del_node(blob
, off
);
840 bus_range
[1] = hose
->last_busno
- hose
->first_busno
;
841 fdt_setprop(blob
, off
, "bus-range", &bus_range
[0], 2*4);
842 fdt_pci_dma_ranges(blob
, off
, hose
);